Technical Field
[0001] The present invention relates to a flying insect trapping ap-
paratus or utensil used to trap flying insects such as flies or wasps.
Background Art
[0002] To control or exterminate flying insects, e. g., a fly, it has
been a general method to use an aerosol sprayer filled in its interior
with an insecticide to spray the insecticide on the controllable fly.
[0003] However, the use of an aerosol sprayer to control a fly is likely
to suffer various restrictions. For example, in the neighborhood of a
kitchen with foods and tableware where many flies develop, there is~
the problem that an insecticide atomized by the aerosol sprayer may
come to adhere on food and tableware. As a result, it has been the ac-
tual circumstances to desist from using such a sprayer there.
[0004] In substitution for such a method of atomizing an insecticide
with an aerosol sprayer, the method of using a fly trapping ribbon,
sheet or the like is conceivable whereby flies are stuck thereto. With
the fly trapping ribbon, sheet or the like, however, the dead bodies of
flies trapped by the adhesive remain lying open and give the user an
unpleasant feeling during use. In addition, there is also the problem
that with the adhesive exposed, the fly trapping ribbon or sheet is
likely to come to stick to such as a hand or clothing of the user and its
use has thus required the user to pay attention to it.
[0005] Accordingly, in lieu of the fly trapping ribbon, sheet or the
like, a trapping utensil is now widespread. The trapping utensil or
apparatus as described in JP 2003 - 70403 A has a spherical con-
tainer which is provided at its upper and lower parts with a small and
a large opening, respectively, through which flies and the like as
harmful insects can enter and in which an attractant insecticide is
received that functions to attract and kill an insecticide such as fly.
And, a smell of the attractant insecticide received in the container is
radiated through the upper small opening and the lower large opening
into the outside so that induced by the smell, such as a fly is lead
through the small or large opening into the container interior. And,
such as a fly lead into the container interior comes to die therein by
contacting with the attractant insecticide.
[0006] With the conventional trapping apparatus, however, there is
the problem that if the smell of the attractant insecticide received in
the container interior is made weak, it is not able to attract such as a
fly at all and contrariwise if the attractant insecticide is made too
strong in smell, then that smell comes to be scented by a human user
and makes the user feel it offensive. The existing trapping apparatus
also offers the problem that there is a limitation in attracting such as
flies by a smell of attractant insecticide such that intensifying the
smell fails to attract them well.
Disclosure of the Invention
[0007] It is accordingly an object of the present invention to solve
these problems and, to wit, to provide a flying insect trapping appa-
ratus or utensil that is capable of trapping flying insects such as flies
or wasps well and moreover without giving an user an unpleasant
feeling.
[0008] The present invention provides in a first aspect thereof a fly-
ing insect trapping apparatus characterized in that it comprises an
attractive and inductive member having a vertical surface portion! an
entry port surrounding an upper part of the attractive and inductive
member; and a trap chamber communicating with the entry port,
whereby a flying insect is attracted by the member to land on the said
surface portion thereof and then is induced to move along the surface
portion and to pass through the said entry port so as to be trapped in
the inside of the said trap chamber.
[0009] According to the invention in the first aspect mentioned above,
flying insects such as flies or wasps can be induced to land on the
surface portion of the attractive and inductive member as a foothold
and flying insects such flies or wasps which have landed can be
guided by their negative geotaxis to move upwards on the attractive
and inductive member and then to enter through the entry port above
into the trap chamber whereby flying insects such as flies or wasps
can be lured or attracted and trapped very well. Accordingly, mark-
edly higher effect of trapping of flying insects such as flies or wasps
can be achieved than in conventional methods of trapping flying in-
sects such as flies by luring or attracting them with odors of an at-
tractant insecticide or the like. Moreover, the use of an attractive and
inductive member with no adhesive or the like attached thereto
eliminates the problem that such as dead flies or the like remain ex-
posed in use, thereby giving users no unpleasant feeling. The problem
is also removed that the user's hand or clothing or the like may come
to stick to the adhesive. The flying insect trapping apparatus can thus
be used very favorably.
[OOIO] In a second aspect thereof the present invention provides a
flying insect trapping apparatus in the first aspect, which comprises a
trap container formed in its inside with the trap chamber and pro-
vided in its lower part with the entry port and a pendant attractive
plate having the vertical surface portion and suspended through the
entry port of the trap container.
[0011] In a third aspect thereof the present invention provides a fly-
ing insect trapping apparatus in the second aspect, in which the pen-
dant attractive plate is of a shape such that its upper side is in the
form of a chevron or an arch which becomes narrower in width up-
wards.
[0012] In a fourth aspect thereof the present invention provides a
flying insect trapping apparatus in the second or third aspect, in
which the pendant attractive plate comprises a plurality of pendant
attractive plates joined together so that they widthwise intersect with
one another.
[0013] According to the invention in the second to fourth aspect the-
reof, flying inserts such as flies or wasps can be induced to land on
the pendant attractive plate as a foothold which is suspended from
the trap container and flying insects such as flies or wasps which
have landed can be induced by their negative geotaxis to move up-
wards on the pendant attractive plate and then to enter into the in-
side of the trap container above whereby flying insects such as flies or
wasps can be lured or attracted and trapped very well. Accordingly,
markedly higher effect of trapping of flying insects such as flies or
wasps can be achieved than in conventional methods of trapping fly-
ing insects such as flies by luring or attracting them with odors of an
attractant insecticide or the like. Moreover, the use of an attractive
and inductive member with no adhesive or the like attached thereto
eliminates the problem that such as dead flies or the like remain ex-
posed in use, thereby giving users no unpleasant feeling. The problem
is also removed that the user's hand or clothing or the like may come
to stick to the adhesive. The flying insect trapping apparatus can thus
be used very favorably.
[0014] Also, the use of the pendant attractive plate of a shape such
that its upper side is in the form of a chevron or an arch which be-
comes narrower in width upwards allows flying insects such as flies or
wasps to smoothly move upwards on the upper part of the pendant
attractive plate, thereby sharply rising the capture ratio for flying
insects such as flies or wasps.
[0015] Also, the use of the pendant attractive plate comprising a
plurality of pendant attractive plates joined together so that they
widthwise intersect with one another allows flying insects such as
flies or wasps to visually recognize the pendant attractive plate from
any of directions over 360° and thus to land on the pendant attractive
plate very well , thereby sharply rising the capture ratio for flying
insects such as flies or wasps.
[0016] In a fifth aspect thereof the present invention provides a fly-
ing insect trapping apparatus in the first aspect, which comprises an
upper container formed in its inside with a trap chamber and pro-
vided at its underside with an entry port, and a lower support mem-
ber having the vertical surface portion and disposed under the upper
container for supporting the upper container wherein the lower sup-
port member has an upper end inserted through the entry port into
the upper container.
[0017] According to the invention in the fifth aspect thereof, flying
insects such as flies or wasps can be induced to land on the vertical
surface portion of a lower support member disposed below the upper
container and flying insects such as flies or wasps which have landed
are guided by their negative geotaxis to move upwards on the surface
portion of the lower support member and then to enter into the inside
of the upper container whereby flying insects such as flies or wasps
can be lured or attracted and trapped very well. Accordingly, mark-
edly higher effect of trapping of flying insects such as flies or wasps
can be achieved than in conventional methods of trapping flying in-
sects such as flies by luring or attracting them with odors of an at-
tractant insecticide or the like. Moreover, since flying insects such as
flies can be attracted and trapped without using an insecticide or the
like of offensive smell, the user will have no unpleasant feeling.
[0018] In a six aspect thereof the present invention provides a flying
insect trapping apparatus in the first aspect, which comprises a lower
container formed over its entire side circumference with an outer cir-
cumferential wall as the vertical surface portion and an upper cover
mounted on the lower container so as to cover above the lower
container and opened at its bottom, wherein a horizontal spacing is
formed between an upper outside of the outer circumferential wall the
lower container and a lower inside of the upper cover as an entry port
through which for flying insects to enter.
[0019] In a seventh aspect thereof the present invention provides a
flying insect trapping apparatus in the six aspect, in which the said
entry port is provided over the entire upper outside circumference of
the outer circumferential wall of the lower container.
[0020] In an eighth aspect thereof the present invention provides a
flying insect trapping apparatus in the sixth or seventh aspect, in
which a trap chamber is formed in the inside of at least one of the
said lower container and upper cover.
[0021] According to the invention in the sixth to eight aspect thereof,
flying insects such as flies or wasps which have landed on the outer
circumferential wall provided as the vertical surface portion over the
entire side circumference of the lower container can be induced util-
izing their negative geotaxis to move on the outer circumferential
wall upwards and then to enter through the entry port provided upper
outside of the outer circumferential wall into the inside whereby fly-
ing insects such as flies or wasps can be attracted into and trapped in
the inside of the lower container and the upper cover. The result is a
sharp rise in the capture ratio for flying insects such as flies or wasps
over conventional methods of trapping flying insects such as flies or
wasps by luring or attracting them into the inside of a container with
odors of an attractant insecticide or the like diffused through a hole
opened in the container.
Brief Description of the accompanyng drawings :-
[0022] In the Drawings:
Fig. 1 is a front view of a flying insect trapping apparatus ac-
cording to a first form of implementation of the present invention;
Fig. 2 is a top plan view of the apparatus according to the first
form of implementation of the invention;
Fig. 3 is a cross sectional view of the apparatus according to
the first form of implementation of the invention;
Fig. 4 is a front view illustrating a pendant attractive plate of
another possible shape in the apparatus according to the first form of
implementation of the invention;
Fig. 5 is a front view illustrating a pendant attractive plate of
still another possible shape in the apparatus according to the first
form of implementation of the invention;
Fig. 6 is a front view illustrating a pendant attractive plate of
yet another possible shape in the apparatus according to the first
form of implementation of the invention;
Fig. 7 is a front view illustrating a pendant attractive plate of
a further possible shape in the first form of implementation of the in-
vention;
Fig. 8 is a front view illustrating a pendant attractive plate of
another possible form in the apparatus according to the first form of
implementation of the invention;
Fig. 9 is a front view illustrating a pendant attractive plate of
still another possible form in the apparatus according to the first form
of implementation of the invention;
Fig. 10 is a front view illustrating a pendant attractive plate
of yet another possible form in the apparatus according to the first
form of implementation of the invention;
Figs. 11A and 11B are front views illustrating test apparatus
A and B, respectively, in a first test;
Figs. 12A and 12B are front views illustrating test apparatus
A and B, respectively, in a second test;
Figs. 13A to 13C are front views illustrating test apparatus A
to C, respectively, in a fourth test;
Figs. 14A to 14D are front views illustrating test apparatus A
to D, respectively, in a fifth test;
Figs. 15A to 15C are front views illustrating test apparatus A
to C, respectively, in a sixth test;
Fig. 16 is a perspective view of a flying insect trapping appa-
ratus according to a second form of implementation of the present in-
vention;
Fig. 17 is a cross sectional view of the apparatus according to
the second form of implementation of the invention;
Fig. 18 is a perspective view illustrating an alternative lower
support member in the apparatus according to the second form of im-
plementation of the invention;
Fig. 19 is a perspective view of another alternative lower
support member in the apparatus according to the second form of im-
plementation of the invention;
Fig. 20 is a perspective view of a further alternative lower
support member in the apparatus according to the second form of im-
plementation of the invention;
Fig. 21 is a perspective view of a still further alternative
lower support member in the apparatus according to the second form
of implementation of the invention!
Fig. 22 is a perspective view of a yet further lower support
member in the apparatus according to the second form of implementa-
tion of the invention;
Fig. 23 is a perspective view of a modified apparatus according
to the second form of implementation of the invention;
Fig. 24 is a cross sectional view of the modified apparatus ac-
cording to the second form of implementation of the invention;
Figs. 25A, 25B and 25C are perspective views illustrating test
apparatus A, B and C, respectively, in a test;
Fig. 26 is a front view of a flying insect trapping apparatus
according to a third form of implementation of the present invention;
Fig. 27 is a plan view of the apparatus according to the third
form of implementation of the invention;
Fig. 28 is a cross sectional view of the apparatus taken along
the line X X VIII-X X VIII in Fig. 27;
Fig. 29 is a perspective view of the apparatus according to the
third form of implementation of the invention;
Fig. 30 is a cross sectional view of the apparatus taken along
thelineXXX-XXX in Fig. 28;
Fig. 31 is a cross sectional view illustrating a modification of
internal structure of the apparatus according to the third form of im-
plementation of the invention;
Fig. 32 is a front view of a first modified apparatus according
to the third form of implementation of the invention;
Fig. 33 is a plan view of the first modified apparatus accord-
ing to the third form of implementation of the invention;
Fig. 34 is a cross sectional view of the first modified appara-
tus according to the third form of implementation of the invention;
Fig. 35 is a perspective view of the first modified apparatus
according to the third form of implementation of the invention;
Fig. 36 is a right side view of a second modified apparatus,
according to the third form of implementation of the invention;
Fig. 37 is a plan view of the second modified apparatus ac-
cording to the third form of implementation of the invention;
Fig. 38 is a cross sectional view of the second modified appa-
ratus according to the third form of implementation of the invention;
Fig. 39 is a front view of a third modified apparatus according
to the third form of implementation of the invention;
Fig. 40 is a plan view of the third modified apparatus accord-
ing to the third form of implementation of the invention;
Fig. 41 is a cross sectional view of the apparatus taken along
the line XL I - XL I in Fig. 40; and
Figs. 42A to 42C are explanatory views illustrating tests, re-
spectively, in the present invention.
Best Modes for Carrying Out the Invention
[0023] Mention is made of a flying insect trapping apparatus accord-
ing to a first form of implementation of the present invention.
[0024] The apparatus according to the first form of implementation
as shown in Figs. 1, 2 and 3 has a trap container 1 formed in its in-
side with a trap chamber 2. The trap container 1 comprises an upper
container member 3 of generally semispherical shape and a lower
container member 4 of a dish shape adapted to detachably fit therein
to make a hollow structure forming the trap chamber 2. And, the up-
per container member 3 in the trap container 1 is formed at its cen-
tral upper end with an opening 5 small in diameter.
[0025] On the other hand, the lower container member 4 in the trap
container 1 is formed at its lower center with a cylindrical barrel part
6 rising upwards whose upper end is open to form there a vertically
opened entry port 7 large in diameter and circular in cross section.
And, a ring-shaped recess 8 is formed around the entry port 7.
[0026] It should be noted here that the trap container 1 made of the
upper and lower container members 3 and 4 is not necessarily gener-
ally semispherical or circular-dish shaped as mentioned above but
may be of a shape that is conical, pyramidal, columnar, prismatic,
rectangular parallelepiped or polyhedral or any other shape.
[0027] And, suspended down out of the entry port 7 in the trap con-
tainer is a pendant attractive plate 10 which is in the form of a lon-
gitudinal rectangular strip and whose two sides are each designed to
constitute a surface portion 10a. The pendant attractive plate is made
of paper, wood, resin or the like material. Attached to an upper part
of the pendant attractive plate 10 is a string 11 which is passed
through the small opening 5 in the upper container member 3 of the
trap container 1, having its upper part looped, and which is provided
at desired sites with a push ball 12 and a stopper 13 such that hold-
ing the small opening 5 in the upper container member 3 of the trap
container 1 forcibly between them allows the string 11 to be fixed at
the small opening 5 in the upper container member 3 of the trap con-
tainer 1, thereby permitting the pendant attractive plate 10 to be
suspended from the entry port 7. While the pendant attractive plate
10 is thus attached via the string 11 to the trap container 1, the pen-
dant attractive plate 10 may be directly attached to the trap container
1 with an upper part modified in shape of the pendant attractive plate
10.
[0028] And, by coloring the pendant attractive plate 10, it is possible
to enhance the attraction for flying insects such as flies or wasps by
the pendant attractive plate. The coloring is preferably in black, red
or green and may be not in a single color but in multiple colors.
[0029] The pendant attractive plate 10 may be composed of a typical
material such as paper, wood or plastic and is not limited in shape to
a single longitudinal rectangular strip and may be of any of the
shapes and forms as will be mentioned later.
[0030] The pendant attractive plate 10, however, has a size preferred
with the visibility and touchability taken into account to attract fly-
ing insects such as flies or wasps well and should thus have an area of
1 to 1000 cm2, preferably of 9 to 250 cm2. Also, the pendant attractive
plate 10 if in the form of a strip should have a length preferably of 20
cm or less such that a flying insect after landing on the pendant at-
tractive plate 10 is prevented from flying off the plate 10.
[0031] And, the recess 8 in the trap chamber 2 inside of the trap
container 1 has a liquid 15 received therein. The liquid 15 is an at-
tractant liquid such as brewage or vinegar or fruit juice which has an
attracting action. In the case of using an attractant liquid, its at-
tracting action allows flying insects to be better attracted. On the
other hand, water if used is convenient in that when used it gives a
user no unpleasant feeling at all and that if spilled out it does not soil
the floor or the like. Also, such an attractant liquid or water may be
used mixed with an insecticide. Further, the substance to be received
in the trap chamber 2 is not necessarily in the form of a liquid but
may be a gel material or the like, to which also brewage or vinegar or
fruit juice may be added. While the recess 8 in the trap chamber 2 is
shown as receiving the liquid 15, it should be noted that with the be-
havior of a flying insect taken into consideration, it is possible that
the trap chamber 2 instead of receiving the liquid 15 or the like may
simply be coated with an adhesive or have an adhesive sheet stuck on
an inner surface area thereof to successfully trap flying insects. If the
trap chamber 2 is coated with an adhesive or adhesive sheet on the
inner surface area, it may be noted that no ring-shaped recess 8 need
be provided in the trap container 1.
[0032] Mention is next made of an example of actually using such a
flying insect trapping apparatus. In the example, a fly is captured.
[0033] The flying insect trapping apparatus is arranged in a kitchen
by hanging on a hook provided on a ceiling or a wall of the kitchen,
the loop of the string 11 projecting from the small opening 5 of the
upper container member 3 in the trap container 1.
[0034] Then, a fly which is flying 1 around will take the pendant at-
tractive plate 10 as a foothold and settle or land anywhere on the
surface portion 10a of the pendant attractive plate 10. And, the fly
which has landed on the surface portion 10a of the pendant attractive
plate 10 will, due to the negative geotaxis of a flying insect such as fly
or wasp, move upwards on the surface portion 10a of the pendant at-
tractive plate 10. By the negative geotaxis is here meant the nature of
flying insects that they move upwards against gravity.
[0035] And, traveling up from the pendant attractive plate 10 to-
wards the string 11 and then on the string 11 by this negative geo-
taxis, the fly will enter through the entry port 7 of the lower con-
tainer member 4 in the trap container 1 into the inside of the latter.
Then, the fly will fly about in the inside of the trap container 1 and
after flying about in the inside of the trap container 1, it will come
into contact with the liquid 15 in the trap chamber 2 inside of the
trap container 1 so as to be drowned to death if the liquid i 5 is an at-
tractant liquid such as vinegar or water or so as to die upon contact
with the liquid 15 if it is an attractant liquid or water mixed with an
insecticide.
[0036] By arranging the flying insect trapping apparatus in a kitchen
and trapping flies within the trap chamber 2 inside of the trap con-
tainer 1 in this manner, it is possible to exterminate flies in the
neighborhood of the kitchen. And, the flies trapped in the inside of
the trap container 1 can be discharged to allow the flying insect trap-
ping apparatus to be used repeatedly any number of times.
[0037] Mention is next made of other possible shapes and forms of
the pendant attractive plate 10, though the invention is not intended
to be limited to them.
[0038] The pendant attractive plate 10 may be of a shape as shown in
Fig. 4 such that its upper side 20 of the plate 10 in the form of a strip
is angular in the form of a chevron becoming narrower in width up-
wards. Alternatively, as shown in Fig. 5 the upper side 20 of the pen-
dant attractive plate 10 may be arched or specifically semicircular
becoming narrower in width upwards.
[0039] By making the pendant attractive plate 10 narrower in width
upwards in a manner as mentioned above, it is possible to ensure that
a flying insect such as fly or wasp which has landed on the surface
portion 10a of the pendant attractive plate 10 is guided to move, by
its negative geotaxis, up to the upper end of the pendant attractive
plate 10 and thus guided into the inside of the trap container 1. This
can be compared with the case that the upper side 20 is made hori-
zontal where some chance exists that a flying insect that has moved
up to the upper end of the pendant attractive plate 10 may fly off the
upper side 20. By making the pendant attractive plate 10 in a shape
that becomes narrower in width upwards, it is possible to prevent
such a fly-off. As to the shape of a pendant attractive plate 10 that
becomes narrower in width towards its upper end, the steeper is the
upper end the better is the result obtained.
[0040] The pendant attractive plate 10 may be circular on the whole
as shown, e. g. in Fig. 6 or triangular on the whole as shown in Fig. 7.
Also, it nay be polygonal or star-shaped.
[0041] r'urther, the pendant attractive plate 10 may be embodied in
an alternative form as shown in Fig. 8 such that it comprises a pair of
rectangular strip pendant attractive plates 10 joined together so that
they widthwise intersect with each other to form a cross in section.
And, the two pendant attractive plates 10 forming a cross in section
are suspended out of the entry port 7 of the trap container 1. Also, in
lieu of the rectangular strip pendant attractive plates 10 joined to-
gether, circular strip pendant attractive plates 10 as shown in Fig. 9
or triangular strip pendant attractive plates 10 as shown in Fig. 10
may be used joined together.
[0042] By suspending such two attractive plates 10 joined together so
as to intersect widthwise with each other and to form a cross in sec-
tion, it is possible to cause a flying insect such as fly or wasp to visu-
ally recognize the pendant attractive plates 10 from any of the direc-
tions over 360° and to cause a flying insect such as fly or wasp to
land on these pendant attractive plates 10 at an extremely high
probability. In other words, by enhancing the attractive force for a
flying insect such as fly or wasp towards a pendant attractive plate 10,
it is possible to sharply raise the rate of capture for flying insects.
[0043] Pendant attractive plates 10 to be joined together are not
necessarily two as mentioned above but may be more than two such
10 which may be prepared and joined together.
[0044] Mention is next made of tests of the flying insect trapping
apparatus according to the present invention.
[0045] As a first test, a pendant attractive plate 10 was tested on its
effect in the frying insect trapping apparatus. A test apparatus A
having a rectangular strip pendant attractive plate 10 suspended as
shown in Fig. 11 A and a test apparatus B having no such pedant at-
tractive plate 10 suspended as shown in Fig. IIB were used and re-
spective capture numbers in the trap chambers in the test apparatus
A and B were found out. The rectangular strip pendant attractive
plate 10 in the test apparatus A was a black colored vinyl chloride
plate having a length of 15 cm. a width of 6.5 cm and a thickness of
0.5 mm. Also, in the trap container 1 in each test apparatus there was
received a liquid containing vinegar (red vinegar) on the market and
water at 1 / 1.
[0046] And, each of the test apparatus A and B was suspended from
the ceiling of a chamber (with a size of 1.82 m long, 1.82 wide and
1.82 m high) into which 100 yellow fruit-flies (Drosophila melanogas-
ter) and 50 houseflies (Domestica musca) were released, and after
lapse of 24 hours the respective numbers of flies trapped in the test
the test apparatus A and B, namely capture numbers, were counted.
Results of the test are shown in Table 1 below.
[0048] From the test results that the capture numbers were 114 and
2 for the test apparatus A and B, respectively, it is evidently seen
that it is strikingly more effective to trap if the pendant attractive
plate 10 is suspended than if it is not.
[0049] As a second test, a flying insect trapping apparatus according
to the present invention and the conventional trapping apparatus
were tested on their trapping effects. There were used a test appara-
tus A as shown in Fig. 12A which had water 21 alone received in the
trap container 1 and the rectangular strip pendant attractive plate 10
suspended below the trap container 1 and a test apparatus B as
shown in Fig, 12B which as in the conventional trapping apparatus
had no such pendant attractive plate 10 suspended and had an at-
tractant liquid 22 received in the trap container 1 so as to trap by at-
tracting odor of the attractant liquid, and respective capture numbers
trapped inside of the trap containers 1 in the test apparatus A and B
were examined. Here, the rectangular strip pendant attractive plate
10 in the test apparatus A was a black colored vinyl chloride plate
having a length of 15 cm, a width of 6.5 cm and a thickness of 0.5 mm.
[0050] And, each of the test apparatus A and B was suspended from
the ceiling of a chamber (with a size of 1.82 m long, 1.82 wide and
1.82 m high) into which 100 yellow fruit-flies and 50 houseflies were
released, and after lapse of 24 hours the respective numbers of flies
trapped in the test apparatus A and B, namely capture numbers, were
counted. Results of the test are shown in Table 2 below.
[0052] From the test results that the capture numbers were 77 and
12 for the test apparatus A and B, respectively, it is evidently seen
that the apparatus according to the present invention having the
pendant attractive plate 10 suspended is markedly more effective to
trap flying insects than the conventional apparatus trapping them by
attracting odor of an attractant liquid.
[0053] As a third test, the flying insect trapping apparatus was ex-
amined on sizes of a pendant attractive plate 10. First, a black col-
ored vinyl chloride sheet of 0.5 mm thick was prepared from which
were fabricated a square plate of one side of 3 cm (its area of 9 cm2), a
square plate of one side of 4.5 cm (its area of 20.25 cm2), a square
plate of one side of 6 cm (its area of 36 cm2), a square plate of one side
of 9 cm (its area of 81 cm2), a square plate of one side of 13 cm (its
area of 169 cm2) and a square plate of one side of 16 cm (its area of
256 cm2), and each of these plates was suspended as a pendant at-
tractive plate 10 from a trap container 1. Then, a trap container with
no such pendant attractive plate 10 (area of 0 cm2) was identified as
test apparatus A, the trap container with the plate of one side of 3 cm
(its area of 9 cm2) as test apparatus B, that with the plate of one side
of 4.5 cm (its area of 20.25 cm2) as test apparatus C, that with the
plate of one side of 6 cm (its area of 36 cm2) as test apparatus D, that
with the plate of one side of 9 cm (its area of 81 cm2) as test appara-
tus E, that with the plate of one side of 13 cm (its area of 169 cm2) as
test apparatus F and that with the plate of one side of 16 cm (its area
of 256 cm2) as test apparatus G. Here, the container 1 in each test
apparatus had an attractant liquid containing vinegar (red vinegar)
on the market and water at 1 / 1 received therein.
[0054] And, each of the test apparatus A, B, C, D, E, F and G was
suspended from the ceiling of a chamber (with a size of 1.82 m long,
1.82 wide and 1.82 m high) into which 350 yellow fruifflies were re-
leased, and after lapse of 24 hours the respective numbers of flies
trapped in the test apparatus A to G, namely capture numbers, were
[0056] It is seen that the test apparatus A had its capture number of
1, the test apparatus B had the capture number sharply increased to
20, the test apparatus C and D had their capture numbers increased
further to 37 and 47 and then the test apparatus E, F and G has their
capture numbers increased yet further.
[0057] As far as the size of a pendant attractive plate 10 is concerned,
it is thus seen that as its area is increased to about 9 cm2 or more as
in the test apparatus B, flies can better be trapped and as its area is
increased more, the capture number is further increased; the size has
a notable impact on the capture number. However, if the pendant at-
tractive plate 10 is made too large, the problem likely arises that the
flying insect trapping apparatus may itself become inferior not only in
the design but also practicality aspect. In addition, the problem arises
that if the distance from the place where" a fly lanf on the pendant
attractive plate 10 upwards to the trap container 1 is too long, e. g.
longer than about 20 cm, then the fly having landed on the pendant
attractive plate 10 may fly off the plate. From these reasons, the
pendant attractive plate 10 should be sized to have an area of 1 to
1000 cm2, preferably 9 to 250 cm2, more preferably 20 to 170 cm2.
[0058] As a fourth test, the pendant attractive plate 10 in the flying
insect trapping apparatus was examined on its shapes. There were
used a test apparatus A having a pendant attractive plate 10 in the
form of a longitudinal rectangular strip suspended under the trap
container 1 as shown in Fig. 13A, a test apparatus B having a strip
pendant attractive plate 10 having its upper side 20 in the form of a
chevron becoming narrower in width towards the upper end sus-
pended as shown in Fig. 13B and a test apparatus having a circular
pendant attractive plate 10 suspended as shown in Fig. 13C, and re-
spective capture numbers into the inside of the trap containers 1 in
the test apparatus A to C were found out. The pendant attractive
plate 10 in each of the test apparatus was a black colored vinyl chlo-
ride plate having a thickness of 0.5 mm. Here, all of these pendant
attractive plates had an area of about 80 cm2, namely an identical
area. Also, in the inside of the trap container 1 in each test apparatus
there was received an attractant liquid containing vinegar (red vine-
gar) on the market and water at 1 / 1.
[0059] And, each of the test apparatus A, B and C was suspended
from the ceiling of a chamber (with a size of 1.82 m long, 1.82 wide
and 1.82 m high) into which 100 yellow fruit-flies were released, and
after lapse of 24 hours the respective numbers of flies trapped in the
test apparatus A to C, namely capture numbers, were counted. Re-
sults of the test are shown in Table 4 below.
[0060] Table 4
[0061] From the test results that the test apparatus A, B and C had
their respective capture numbers of 12, 41 and 42, it is seen that it is
evidently much more effective to trap if tne upper side 20 of the pen-
dant attractive plate 10 is made of chevron or circular becoming nar-
rower in width towards the upper end (test apparatus B and C) than
if the upper side 20 is horizontal (test apparatus A).
[0062] This is apparently because when the upper side 20 of the
pendant attractive plate 10 is made so angled or circular (arched), a
fly having landed on the plate 10, in moving by negative geotaxis to
the upper end thereof and then entering into the trap chamber 1, can
more smoothly be guided to move upwards than when the upper side
20 is horizontal, thereby preventing the fly from flying off the pen-
dant attractive plate 10.
[0063] As a fifth test, the pendant attractive plate 10 in the flying
insect trapping apparatus was examined on its forms. There were
used a test apparatus A having a longitudinal rectangular strip pen-
dant attractive plate 10 suspended under the trap container as shown
in Fig. 14A, a test apparatus having a circular pendant attractive
plate 10 suspended as shown in Fig. 14B, a test apparatus C having a
pair of rectangular strip pendant attractive plates 10 (as in the test
apparatus A) joined together so as to intersect with each other form-
ing a cross in section suspended as shown in Fig. 14C and a test ap-
paratus having a pair of circular pendant attractive plates (as in the
test apparatus B) suspended as shown in Fig. 14D, and respective
capture numbers into the inside of the trap containers 1 in the test
apparatus A to D were found out. Here, the pendant attractive plate
10 in each of the test apparatus was a black colored vinyl chloride
plate having a thickness of 0.5 mm and an area of about 80 cm2,
namely an identical area. Also, in the inside of the trap container 1 in
each test apparatus there was received an attractant liquid contain-
ing vinegar (red vinegar) on the market and water at 1 / 1.
[0064] And, each of the test apparatus A, B, C and D was suspended
from the ceiling of a chamber (with a size of 1.82 m long, 1.82 wide
and 1.82 m high) in which 150 yellow fruit-flies were released, and
after lapse of 24 hours the respective numbers of flies trapped in the
test apparatus A to D, namely capture numbers, were counted. Re-
sults of the test are shown in Table 5 below.
[0065] Table 5
[0066] From the test results that the t test apparatus A, B, C and D
had their respective capture numbers of 4, 11, 26 and 90, it is seen
that with that which uses two pendant attractive plates 10 joined to-
gether so as to intersect with each other forming a cross in section it
is evidently much more effective to trap than with that which uses a
single pendant attractive plate 10. Especially, with circular pendant
attractive plates 10 joined together to form a cross, the result ob-
tained proves excellent.
[0067] From such results, it is seen that one which uses two pendant
attractive plates 10 joined together so as to intersect with each other
forming a cross in section is higher in capture ratio that one which
uses a single pendant attractive plate 10, it being conceivable that
using three or more pendant attractive plates joined together will
further enhance the capture ratio.
[0068] In this connection, a flying insect such as fly is capable of
recognizing an object by vision. Thus, with a plurality of pendant at-
tractive plates 10 joined together, the flying insect will visually rec-
ognize the pendant attractive plates 10 well from any of the directions
over 360° by taking them as a perch or roost to land on anywhere on
them as a foothold.
[0069] As a sixth test, two pendant attractive plates in the flying in-
sect trapping apparatus such that they are joined together to form a
cross in section were examined on their shapes. There were used a
test apparatus A in which two longitudinal rectangular strip pendant
attractive plates 10 whose upper sides 20 are each angular and which
are joined together to intersect widthwise with each other so that
they form a cross in section are suspended under the trap container 1
as shown in Fig. 15A, a test apparatus B in which two circular pen-
dant attractive plates 10 joined together to intersect widthwise with
each other so that they form a cross in section are suspended under
the trap container 1 as shown in Fig. 15B and a test apparatus C in
which two triangular pendant attractive plates 10 joined together to
intersect widthwise with each other so that they form a cross in sec-
tion are suspended under the trap container 1 as shown in Fig. 15C,
and respective capture numbers trapped inside of the trap containers
1 in the test apparatus A, B and C were examined. The pendant at-
tractive plate 10 in each of the test apparatus was a black colored vi-
nyl chloride plate having a thickness of 0.5 mm. Here, all of these
pendant attractive plates had an area per each one of about 80 cm2,
namely an identical area. Also, in the inside of the trap container 1 in
each test apparatus there was received an attractant liquid contain-
ing vinegar (red vinegar) on the market and water at 1 / 1.
[0070] And, each of the test apparatus A, B and C was suspended
from the ceiling of a chamber (with a size of 1.82 m long, 1.82 wide
and 1.82 m high) in which 200 yellow fruit-flies were released, and
after lapse of 24 hours the respective numbers of flies trapped in the
test apparatus A to C, namely capture numbers, were counted. Re-
sults of the test are shown in Table 6 below.
[0071] Table 6
[0072] The Table shows that the test apparatus A, B and C had their
respective capture numbers of 42, 46 and 77. It is thus seen that the
test apparatus C using triangular pendant attractive plates 10 is
higher in capture number than the test apparatus A using essentially
rectangular strip pendant attractive plates 10 and the test apparatus
B using circular pendant attractive plates 10 and hence that the use
of triangular pendant attractive plates is most effective in trapping
flies.
[0073] Mention is next made of a flying insect trapping apparatus
according to a second form of implementation of the present inven-
tion.
[0074] The flying insect trapping apparatus here as shown in Figs. 16
and 17 comprises a hollow upper container 102 provided at its under-
side with a vertically opened entry port 101 and a lower support
member 104 having a longitudinal surface portion 103 and disposed
downwards of the upper container 102 for supporting the upper con-
tainer 102.
[0075] The upper container 102 comprises a generally semispherical
upper body 111 and a lower member 112 in the form of a circular dish
which are adapted to fit with each other to form a hollow structure
defining a trap chamber 113 in its inside.
[0076] The lower member 112 in the upper container 102 is formed at
its lower center with a cylindrical barrel part 114 rising upwards
whose upper end is open to form there the vertically opened entry
port 101 large in diameter and circular in cross section. And, a
ring-shaped recess 115 is formed around the entry port 101.
[0077] It should be noted here that the upper container 102 made of
the upper and lower members 111 and 112 is not necessarily generally
semispherical or circular-dish shaped as mentioned above but may be
of a shape that is conical, pyramidal, columnar, prismatic, rectangu-
lar parallelepiped or polyhedral or any other shape.
[0078] Also, the upper container 102 is opaque white in color so that
its inside is seen through it. It is, however, not necessarily of the col-
or mentioned but it suffices if the same is of a light color such a white
including opaque white.
[0079] On the other hand, the lower support member 104 is a conical
three-dimensional shape whose entire side surface is here used as the
surface portion 103, i. e., has the surface portion 103. And, the lower
support member 104 has its upper end inserted through the entry port
101 provided at the underside of the upper container 102, into the in-
side of the upper container 102 so that the upper end is removably
received in a fitting portion 116 projecting downwards from the center
of the upper body 111 in the upper container 102.
[0080] The lower support member 104 is colored typically in black
but in general may sufficiently be of a dark color such as dark brown
or black.
[0081] And, the recess 115 in the trap chamber 113 inside of the up-
per container 102 has a liquid received therein. The liquid is an at-
tractant liquid such as brewage or vinegar or fruit juice which has an
attracting action. In the case of using an attractant liquid, its at-
tracting action allows flying insects to be better attracted. On the
other hand, water if used is convenient in that when used it gives a
user no unpleasant feeling at all and that if spilled out it does not soil
the floor or the like. Also, such an attractant liquid or water may be
used mixed with an insecticide. Further, the substance to be received
in the trap chamber 113 is not necessarily in the form of a liquid but
may be a gel material or the like, to which also brewage or vinegar or
fruit juice may be added. While the recess 115 in the trap chamber
113 is shown as receiving the liquid, it should be noted that with the
behavior of a flying insect taken into consideration, it is possible that
the trap chamber 113 instead of receiving the liquid or the like may
simply be coated with an adhesive or have an adhesive sheet stuck on
an inner surface area thereof to successfully trap flying insects. If the
trap chamber 113 is coated with an adhesive or adhesive sheet on the
inner surface area, it may be noted that no ring-shaped recess 115
need be provided in the trap container 102.
[0082] Mention is then made of an example of actually using such a
flying insect trapping apparatus. In the example, a fly is captured.
[0083] The flying insect trapping apparatus is disposed, e. g. in a
kitchen. Then, a fly which is flying 1 around will land anywhere on
the surface portion 103 of the lower support member 104 in the flying
insect trapping apparatus. And, the fly which has landed on the sur-
face portion 103 of the lower support member 104 will, due to the
negative geotaxis of a flying insect such as fly or wasp, move on the
surface portion 103 upwards, i. e., is guided to move upwards. By the
negative geotaxis is here meant the nature of flying insects that they
move upwards against gravity.
[0084] And, traveling up on the surface portion 103 of the lower sup-
port member 104 by this negative geotaxis, the fly will enter through
the entry port 101 of the lower member 112 in the upper container
102 into the inside of the latter. Then, the fly will fly about in the in-
side of the upper container 102 and after flying about in the inside of
the upper container 102, it will come into contact with the liquid in
the recess 115 of the trap chamber 113 inside of the upper container
102 so as to be drowned to death if the liquid is an attractant liquid
such as vinegar or water or so as to die upon contact with the liquid if
it is an attractant liquid or water mixed with an insecticide.
[0085] Thus, by arranging the flying insect trapping apparatus in a
kitchen and guiding the flies which have landed on the surface por-
tion 103 of the lower support member 104 to move on the surface por-
tion 103 upwards and then leading the flies through the entry port
101 into the inside of the upper container 102 to trap the flies, it is
possible to exterminate flies in the neighborhood of the kitchen. And,
the flies trapped in the inside of the upper container 102 can be dis-
charged to allow the flying insect trapping apparatus to be used re-
peatedly any number of times.
[0086] By utilizing the negative geotaxis of flying insects to guide the
flies which have landed on the surface portion 103 of the lower sup-
port member 104 to move on the surface portion 103 upwards and
then to lead the flies through the entry port 101 into the inside of the
upper container 102 in this manner, it is possible to trap flies well
and to raise the capture ratio for flies drastically.
[0087] Mention is next made of other possible shapes and forms of
the lower support member, though the invention is not intended to be
limited to them.
[0088] The lower support member 104 may as shown in Fig. 18 be of
a three-dimensional shape of quadrangular or triangular pyramid of
which each side face then constitutes a vertical surface portion 103.
Also, as shown in Fig. 19 the side face as the surface portion 103 may
be formed with a plurality of vertical slits 121, and as shown in Figs.
20 and 21 the side face as the surface portion 103 may be formed with
a plurality of holes 122.
[0089] Also, the lower support member 104 may not necessarily be of
a three-dimensional shape of quadrangular or triangular pyramid but
as shown in Fig. 22 may be of a shape such that a pair of triangular
plate materials 131 are joined together so as to intersect with each
other joining a cross in section. In this case, each face constitutes the
vertical surface portion 103. Here, to form such a shape the plate ma-
terials joined together may not necessarily be two but may be three or
more.
[0090] To mention a modification of the flying insect trapping appa-
ratus according to the second form of implementation of the present
invention, chis modification is to enhance its design characteristic in
case it is taken into account to place it actually in the kitchen, living
room, entrance or the like of a house.
[0091] As shown in Figs. 23 and 24, the upper container 102 is of a
circular truncated cone in shape having a pattern such as flowers ap-
plied to its surface. On the other hand, the lower support member 104
is of a conical three-dimensional shape which is somewhat curved in-
wards and squeezed or narrowed down upwards.
[0092] This allows trapping flies well and drastically increasing their
capture ratio and at the same time prevents the apparatus placed in-
doors from being recognized by the user or the like as an insect trap
while making it look as a good-looking article like an ornament to
decorate the room in which it is placed, thereby preventing its pres-
ence in use from giving an unpleasant feeling.
[0093] Mention is next made of a test of the flying insect trapping
apparatus which was conducted.
[0094] As this test, an exemplified apparatus A, an exemplified ap-
paratus B and a comparative apparatus C are first prepared. The ex-
emplified apparatus A as shown in Fig. 25A comprises an upper con-
tainer 102 provided at its underside with the entry port 101 and the
lower support member 104 having the vertical surface portion 103
wherein the lower support member 104 comprises two triangular plate
materials 131 joined together to intersect with each other so as to
form a cross in section and the recess 115 in the trap chamber 113 in-
side of the upper container 102 has water W received therein. The
exemplified apparatus B as shown in Fig. 25B is structurally identical
to but differs from the exemplified apparatus A in that the recess 115
in the trap chamber 113 inside of the upper container 102 has red vi-
negar S received therein as an attractant liquid. The comparative
apparatus C as shown in Fig. 25C comprises the upper container 102
only which is provided at its underside with the entry port 101 and in
which the recess 115 in the trap chamber 113 has red vinegar S as the
attractant liquid received therein.
[0095] The exemplified apparatus A and B and the comparative ap-
paratus C thus prepared are each disposed in a chamber (with a size
of 1.82 m long, 1.82 wide and 1.82 m high) wherein the exemplified
apparatus A and B are each placed on the floor in the chamber and
the comparative apparatus C is hung so that the container 102 there-
in lies identical in height to that of the exemplified apparatus A, B.
And, 50 yellow fruit-flies were released into the inside of the chamber,
and after lapse of 24 hours the respective numbers of flies trapped in
trapped in the test apparatus A to C, namely capture numbers, were
counted. Results of the test are shown in Table 7 below.
[0096] Table 7
[0097] The Table shows that the exemplified apparatus A and B as
flying insect trapping apparatus of the present invention had respec-
tive capture numbers of 16 and 23 while the comparative apparatus C
as a conventional trapping apparatus had a capture number of 2, from
which it is seen that with the exemplified apparatus A and B as flying
insect trapping apparatus of the present invention it is much more
effective to trap than with the comparative apparatus C. In other
words, it is seen that the flying insect trapping apparatus according
to the present invention is markedly higher in trapping effect than
the conventional trapping apparatus that relies on the odor of an
attractant liquid to attract and trap flying insects.
[0098] Mention is made of a flying insect trapping apparatus accord-
ing to a third form of implementation of the present invention.
[0099] The flying insect trapping apparatus as shown in Figs. 26, 27,
28, 29 and 30 comprises a top-open hollow columnar (cylindrical)
lower container 201 and a bottom-open hollow columnar (cylindrical)
upper cover 202 for mounting on the lower container 201 so as to
cover above the lower container 201.
[OlOO] The lower container 201 includes a circular bottom wall 210, a
cylindrical inner circumferential wall 211 rising vertically from the
rim of the bottom wall 210 and a generally cylindrical outer circum-
ferential wall 212 connected to an upper end of the inner circumfer-
ential wall 211 and d sposed outside of the inner circumferential wall
211 to serve as a vertical surface portion. To wit, the lower container
201 is largely open at its top and has the outer circumferential wall
212 over its entire side face. And, the outer circumferential wall 212
of the lower container 201 is slightly inclined inwards towards the top
and provided over its entire surface with numbers of vertical grooves
213 in succession circumferentially to make the surface wavy.
[OlOl] Also, in the lower container 201 at a center thereof an elon-
gate hollow-cylindrical supporting column 214 rises and on the inner
bottom wall 210 is placed a chemical impregnated mat 215 in the form
of a circular ring. The chemical impregnated mat 215 is e. g. of un-
woven fabric and is impregnated with an attractant and an insecti-
cide.
[0102] On the other hand, the upper cover 202 includes a cylindrical
circumferential wall 220 and a top wall 221 provided at the upper end
of the circumferential wall 220. To wit, the upper cover 202 is largely
open at its bottom. And, the circumferential wall 220 of the upper
cover 202 is slightly inclined inwards towards the top while the top
wall 221 of the upper cover 202 is made in the form of a generally
sunken cone and formed along its exterior with a plurality of upper
entry ports 222 circumferentially. Also, at a lower center of the top
wall 221 is provided a cylindrical fitting 224 that fits on the upper
end of the supporting column 214 of the lower container 201.
[0103] And, the lower container 201 and the upper cover 202 are so
sized that when the upper cover 202 is mounted on the lower con-
tainer 201, between the lower inside of the circumferential wall 220 in
the upper cover 202 and the upper outside of the outer circumferen-
tial wall 212 in the lower container 201 there is formed a horizontal
spacing S over the entire outside circumference of the outer circum-
ferential wall 212. And, this spacing S formed between the lower con-
tainer 210 and the upper cover 202 is used to serve as an entry port
203 through which for flying insects to enter into the inside of the
apparatus. To wit, the entry port 203 is provided extending over the
entire upper outside circumference of the outer circumferential wall
212 in the lower container 201.
[0104] Here, the spacing S as the entry port 203 has a size which
though varying more or less depending on flying insects to be trapped
should preferably be not less than 3 to 4 mm and not more than 10
mm for flies such as small flies and not less than 10 mm and not more
than 20 mm for wasps. With the spacing S so sized, flies or wasps
creeping up on the outer circumferential wall 212 of the lower con-
tainer 201 up to the entry port 203, then can easily enter through the
entry port 203 into the inside. Flies or wasps once they enter inside
will fly about in the inside and cannot exit through the entry port 203.
Even if they settle on the inner circumferential wall 220 of the upper
cover 202, they won't move downwards due to their negative geotaxis
as will be described later and cannot exit through the entry port 3.
[0105] Also, if flies such as small flies are to be trapped, the lower
container 201 and the upper cover 202 are preferably so sized that
their entire height is around 100 mm, their outer diameters not less
than 70 mm, the height of the lower container not less than 35 mm
and the height of the outer circumferential wall 212 in the lower con-
tainer 212 which is exposed and namely excludes the area where it
overlaps with the upper cover 202 should be not less than 30 mm.
[0106] As the colors of the lower container 201 and the upper cover
202, the lower container 201 is made black in color and the upper
cover 202 is made opaque white in color so that the inside can some-
what be seen. However, these are not a limitation, and the lower con-
tainer 201 should sufficiently be of a dark color such as dark brown,
black or the like while the upper cover 202 should sufficiently be of a
light color such as white including opaque white.
[0107] With the apparatus components so made, if flies such as small
flies are to be trapped, setting the flying insect trapping apparatus at
a given indoor site such as in the kitchen will cause flies to land on
the outer circumferential wall 212 of the lower container 201. Then,
coloring the lower container 201 dark in color relative to the upper
cover 202 made light in color can better attract flies towards the outer
circumferential wall 212 of the lower container 201 to cause them to
land there.
[0108] And, flies which have larded on the outer circumferential wall
212 of the lower container 201 wall, by the negative geotaxis of flies or
wasps, move upwards on the outer circumferential wall 212 and enter
through the entry port 203 over the entire upper outside circumfer-
ence of the outer circumferential wall 212 into the inside of the lower
container 201 and the upper cover 202. By the negative geotaxis is
here meant the nature of flying insects that they move upwards
against gravity. Here, the surface of the outer circumferential wall
212 of the lower container 2 can be made wavy to further enhance the
action of this negative geotaxis.
[0109] Flies which have enter into the inside of the lower container
201 and the upper cover 202 will fly about in the inside and after a
while will be attracted to the chemical impregnated mat 215 placed on
the inner bottom wall 210.
[Olio] Thus, with this flying insect trapping apparatus, flies present
in such as the neighborhood of a kitchen can be exterminated by at-
tracting flies into the inside of the lower container 210 and the upper
cover 202 and trapping attracted flies. Moreover, with the upper cover
202 formed with the upper entry ports 222, flies can enter into the in-
side through these upper entry ports 222 and can be trapped through
them as well.
[0111] Thus, with the apparatus made of a lower container 201 and
an upper cover 202, providing an outer circumferential wall 212 over
its entire side circumference of the lower container 210 while provid-
ing the outer circumferential wall 212 with an entry port 203 over its
entire upper outside circumference makes it possible to cause flies
landing on the outer circumferential wall 212 of the lower container
220 to move upwards on the outer circumferential wall 212 utilizing
the negative geotaxis of a flying insect and then to lead them through
the entry port 203 provided over the entire upper outside circumfer-
ence of the outer circumferential wall 212 into an inside of the appa-
ratus and thus to attract and trap them very well in the inside of the
lower container 201 and the upper cover 202, thereby drastically in-
creasing the capture ratio for flies.
[0112] Here, instead of placing the chemical impregnated mat 215
inside of the lower container 210, an attractant liquid or water alone
may be received to cause the entered flies to be drawn, or alterna-
tively an adhesive may be coated on a surface each of the bottom wall
210 and inner circumferential wall 211 inside of the lower container
201 to stick and trap flies therewith. Further, in a method of the type
in which the adhesive is coated to trap flies by sticking, the lower
container 201 may not be made of the bottom wall 210, inner circum-
ferential wall 211 and outer circumferential wall 212 but may be
made of the outer circumferential wall 212 and a top wall 216 as
shown in Fig. 31wherein an adhesive 217 may be coated on a surface
of the top wall 216 and further on an inner face of each of the circum-
ferential wall 220 and the top wall 221 of the upper cover 202 to stick
and trap flies there. Here, the adhesive 217 may not entirely be
coated on the circumferential wall 220 and the top wall of the upper
cover but only on a portion thereof. This also applies in first to third
modifications to be described below.
[0113] Mention is next made of a flying insect trapping apparatus
according to a first modification of the third form of implementation
of the invention.
[0114] The flying insect trapping apparatus as shown in Fig. 32, 33,
34 and 35 and basically as in the third form of implementation above
comprises a top-open lower container 201 and a bottom-open upper
cover 202 for mounting on the lower container 201 so as to cover
above the lower container 201.
[0115] The lower container 201 includes a circular bottom wall 210, a
cylindrical inner circumferential wall 211 rising vertically from the
rim of the bottom wall 210 and a generally cylindrical outer circum-
ferential wall 212 connected to an upper end of the inner circumfer-
ential wall 211 and disposed outside of the inner circumferential wall
211 to serve as a vertical surface portion. To wit, the lower container
201 is largely open at its top and has the outer circumferential wall
212 over its entire side face. The outer circumferential wall 212 of the
lower container 201 is slightly curved outwards towards the bottom in
the form of an externally expanding bugle and provided over its entire
surface with numbers of vertical grooves 213 in succession circumfer-
entially to make the surface wavy.
[0116] Also, in the lower container 201 at a center thereof an elon-
gate hollow-cylindrical supporting column 214 rises and on the inner
bottom wall 210 is placed a chemical impregnated mat 215 in the form
of a circular ring. The chemical impregnated mat 215 as in the third
form of implementation above is e. g. of unwoven fabric and is im-
pregnated with an attractant and an insecticide.
[0117] On the other hand, the upper cover 202 includes a circumfer-
ential side face 230 and a top face 231 which are made continuous to
present a semi-ovaloidal surface. To wit, the upper cover 202 is large-
ly open at its bottom. And, at a top center of the upper cover is
provided a cylindrical fitting 224 which extending vertically down-
wards fits in a supporting post 224 in the lower container 210. Also,
the upper cover 202 is formed in the circumferential side face 230
with five (5) upper entry ports 222 equally spaced circumferentially.
Here, the upper entry ports are each around 8 mm in width L2, re-
jecting entry of a child finger.
[0118] And, the lower container 201 and the upper cover 202 are so
sized that when the upper cover 202 is mounted on the lower con-
tainer 201, between the lower inside of the circumferential side face
230 in the upper cover 202 and the upper outside of the outer circum-
ferential wall 212 in the lower container 201 there is formed a hori-
zontal spacing S over the entire outside circumference of the outer
circumferential wall 212. And, this spacing S formed between the
lower container 210 and the upper cover 202 is used to serve as an
entry port 203 for flying insects to enter into the inside of the appa-
ratus. To wit, the entry port 203 as in the third form of implementa-
tion above is provided extending over the entire upper outside cir-
cumference of the outer circumferential wall 212 in the lower con-
tainer 201.
[0119] Here, the size of the spacing S as the entry port 3 and the
various sizes of the lower container 201 and the upper cover 202 are
equal to those in the third form of implementation above. The colors o
the lower container 201 and the upper cover 202 are identical to those
in the third form of implementation above.
[0120] It is thus made possible here again to cause flies landing on
the outer circumferential wall 212 of the lower container 220 to move
upwards on the outer circumferential wall 212 utilizing the negative
geotaxis of a flying insect and then to lead them through the entry
port 203 provided over the entire upper outside circumference of the
outer circumferential wall 212 into an inside of the apparatus and
thus to attract and trap them very well in the inside of the lower con-
tainer 201 and the upper cover 202, thereby drastically increasing the
capture ratio for files.
[0121] Mention is next made of a flying insect trapping apparatus
according to a second modification of the third form of implementation
of the invention.
[0122] The flying insect trapping apparatus according to the second
modified form of implementation as shown in Figs. 36, 37 and 38 is to
make oblong cylindrical the circular cylindrical apparatus for trap-
ping flying insects in the third form of implementation above. It com-
prises a top-open hollow oblong cylindrical lower container 201 and a
bottom-open hollow oblong cylindrical upper cover 202 mounted on the
lower container 201 so as to cover above the lower container 201.
[0123] The lower container 201 includes an oblong circular bottom
wall 210, an oblong-cylindrical inner circumferential wall 211 rising
up vertically from the rim of the bottom wall 210 and a generally ob-
long-cylindrical outer circumferential wall 212 connected to an upper
end of the inner circumferential wall 211 and disposed outside of the
inner circumferential wall 211 to serve as a vertical surface portion.
To wit, the lower container 201 is largely open at its top and has the
outer circumferential wall 212 over its entire side face. And, the outer
circumferential wall 212 of the lower container 201 as in the third
form of implementation above is slightly inclined inwards towards the
top and provided over its entire surface with numbers of vertical
grooves 213 in succession circumferentially to make the surface wavy.
However, the outer circumferential wall is provided at each of its lat-
eral or right and left sides with a vertical wall portion 235 not in-
clined but rising straight up.
[0124] Also, placed on the bottom wall 210 inside of the lower con-
tainer 1 is an oblong-circular mat 215 impregnated with a chemical.
The chemical impregnated mat 215 as in the third form of implemen-
tation above is e. g. of unwoven fabric and is impregnated with an at-
tractant and an insecticide.
[0125] On the other hand, the upper cover 202 includes an oblong cy-
lindrical circumferential wall 220 and a top wall 221 provided at the
upper end of the circumferential wall 220. To wit, the upper cover 202
is largely open at its bottom. And, the top wall 221 of the upper cover
202 is made in the form of a generally sunken cone and has its center
opened in the form of an oblong and made as an upper entry port 222.
On both right and left sides of the upper entry port 222 are provided
semicircular cylindrical fittings 224 which extending downward fit
respectively in right and left inside portions of the inner circumferen-
tial wall 211 in the lower container 201. Further, the lower end of the
circumferential wall 220 of the upper cover 202 at its right and left
sides is designed to abut on the vertical wall portions 235 of the outer
circumferential wall 212 of the lower container 201 at its right and
left sides. Also, in the upper entry port 222 a stopper plate 236 in the
form of a plate is disposed oriented in a right and left direction and
each of spacings L3 between its both sides and the inside of the upper
entry port is not more than 8 mm, sufficient to reject entry of a child
finger.
[0126] And, the lower container 201 and the upper cover 202 are so
sized that when the upper cover 202 is mounted on the lower con-
tainer 201, between the lower inside of the circumferential wall 220 in
the upper cover 202 and the upper outside of the outer circumferen-
tial wall 212 in the lower container 201 there is formed a horizontal
spacing S outside of the outer circumferential wall 212. And, this
spacing S formed between the lower container 210 and the upper
cover 202 is used to serve as an entry port 203 through which for fly-
ing insects to enter into the inside of the apparatus. To wit, the entry
port 203 as in the third form of implementation above is provided ex-
tending over the upper outside of the outer circumferential wall 212
in the lower container 201.
[0127] Here, the spacing S of the entry port 203 is sized generally as
iu the third form of implementation above. However, if flies such as
sruall flies are to be trapped, the lower container 201 and the upper
cover 202 are preferably so sized that their entire height is around
100 mm as in the third form of implementation above, but their
length is around 55 mm back and forth and around 105 mm right and
left. Making them oblong cylindrical provides a thin apparatus for
trapping flying insects. Also, the colors of the lower container 201 and
the upper cover 202 are equal to those in the third form of implemen-
tation above.
[0128] It is thus made possible here again to cause flies landing on
the outer circumferential wall 212 of the lower container 220 to move
upwards on the outer circumferential wall 212 utilizing the negative
geotaxis of a flying insect and then to lead them through the entry
port 203 provided over the entire upper outside circumference of the
outer circumferential wall 212 into an inside of the apparatus and
thus to attract and trap them very well in the inside of the lower con-
tainer 201 and the upper cover 202, thereby drastically increasing the
capture ratio for flies.
[0129] Mention is next made of a flying insect trapping apparatus
according to a third modification of the third form of implementation
of the invention.
[0130] The flying insect trapping apparatus according to the third
modified form of implementation as shown in Figs. 39, 40 and 41 is to
make triangular cylindrical the circular cylindrical apparatus for
trapping flying insects in the third form of implementation above. It
comprises a top-open hollow triangular cylindrical lower container
201 and a bottom-open hollow triangular cylindrical upper cover 202
mounted on the lower container 201 so as to cover above the lower
container 201.
[0131] The lower container 201 includes a triangular bottom wall 210,
a triangular-cylindrical inner circumferential wall 211 rising up ver-
tically from the rim of the bottom wall 210 and a generally triangu-
lar-cylindrical outer circumferential wall 212 connected to an upper
end of the inner circumferential wall 211 and disposed outside of the
inner circumferential wall 211 to serve as a vertical surface portion.
To wit, the lower container 201 is largely open at its top and las the
outer circumferential wall 212 over its entire side face. And, the outer
circumferential wall 212 of the lower container 201 which is slightly
inclined inwards towards the top has three corner portions not in-
clined but rising straight up, and is also provided over its entire sur-
face with numbers of vertical grooves 213 in succession circumferen-
tially to make the surface wavy.
[0132] And, placed on the bottom wall 210 inside of the lower con-
tainer 201 is a triangular mat 215 impregnated with a chemical. The
chemical impregnated mat 215 as in the third form of implementation
above is e. g. of unwoven fabric and is impregnated with an attractant
and an insecticide.
[0133] On the other hand, the upper cover 202 includes a triangu-
lar-cylindrical circumferential wall 220 and a convex top wall 221
provided at the upper end of the circumferential wall 220. To wit, the
upper cover 202 is largely open at its bottom. And, the top wall 221 of
the upper cover 202 is formed with numbers of circular upper entry
ports 222 whose diameter L4 is around 8 mm, sufficient to reject en-
try of a child finger.
[0134] To join the upper container 201 and the lower cover 202 to-
gether, while in the third form of implementation and the first modi-
fication thereof, the fitting 224 formed in the upper cover is fitted on
or in the supporting post 214 rising on the lower container 201, in
this modified of implementation, the three corner portions formed in
the circumferential wall 220 of the upper cover 202 is fitted on the
three corner portions in the outer circumferential wall 212 of the
lower container 212. To join the lower container 201 and the upper
cover 201 together this is not a limitation, however, in this modifica-
tion in which as in the third form of implementation and the second
modification thereof, there may be providing a supporting post 214
rising up in the lower container 210 and a fitting 224 in the upper
cover 202 to fit thereon or therein.
[0135] And, the lower container 201 and the upper cover 202 are so
sized that when the upper cover 202 is mounted on the lower con-
tainer 201, between the lower inside of the circumferential wall 220 in
the upper cover 202 and the upper outside of the outer circumferen-
tial wall 212 in the lower container 201 there is formed a horizontal
spacing S outside of the outer circumferential wall 212 except where
there are the three corner portions. And, this spacing S formed be-
tween the lower container 210 and the upper cover 202 is used to
serve as an entry port 203 through which for flying insects to enter
into the inside of the apparatus. To wit, the entry port 203 as in the
third form of implementation above is provided extending over the
upper outside of the outer circumferential wall 212 in the lower con-
tainer 201.
[0136] Here, the spacing S of the entry port is sized as in the third
form of implementation above. Also, the colors of the lower container
201 and the upper cover 202 are equal to those in the third form of
implementation above.
[0137] It is thus made possible here again to cause flies landing on
the outer circumferential wall 212 of the lower container 220 to move
upwards on the outer circumferential wall 212 utilizing the negative
geotaxis of a flying insect and then to lead them through the entry
port 203 provided over the entire upper outside circumference of the
outer circumferential wall 212 into an inside of the apparatus and
thus to attract and trap them very well in the inside of the lower con-
tainer 201 and the upper cover 202, thereby drastically increasing the
capture ratio for flies.
[0138] Mention is next made of tests on trapping effects of the flying
insect trapping apparatus according to the present invention.
[0139] In tests, use is made of three types A, B and C of the flying
insect trapping apparatus as shown in Figs. 42A, 42B and 42C, re-
spectively. A is a flying insect trapping apparatus as described in the
first modification above, B is a flying insect trapping apparatus which
eliminates the upper entry ports 222 provided in the circumferential
side face of the upper cover 202 in the apparatus A, and C is a flying
insect trapping apparatus which eliminates the entry port 203 pro-
vided over the entire upper outside circumference in the outer
circumferential wall 212 of the lower container 201 in the apparatus
A.
[0140] Each of the test apparatus A, B and C was suspended from the
ceiling of a chamber (with a size of 1.82 m long, 1.82 wide and 1.82 m
high) into which 50 small flies were released, and after lapse of 24
hours the respective numbers of flies trapped in the test apparatus A,
B and C, namely capture numbers, were counted. After these tests
were each repeated more than once, the average capture numbers
were calculated. Results of the test are shown in Table 8 below.
[0142] It is shown that the flying insect trapping apparatus A, B and
C had average capture numbers of 22, 18 and 6, respectively. These
taken together in a circular graph give rise to Table 9 below.
[0143] Table 9
[0144] As is apparent from Table 9, it is seen that the flying insect
trapping apparatus A and B trap 44 % and 36 % of the total, respec-
tively, while the flying insect trapping apparatus C only traps 12 % of
the total.
[0145] From these results, it is seen that it is extremely high in
small fly capture number if the entry port 203 is provided over the
entire upper outside circumference of the outer circumferential wall
212 in the lower container 201, the entry port 203 achieving a notable
effect in capture. It is also seen that providing the upper cover 202
with upper entry ports further increases the capture number.
We claim :-
1. A flying insect trapping apparatus characterized in that it
comprises an attractive and inductive member having a vertical sur-
face portions an entry port surrounding an upper part of the attractive
and inductive member; and a trap chamber communicating with the
entry port, whereby a flying insect is attracted by said member to
land on said surface portion thereof and then is induced to move along
the surface portion and to pass through said entry port so as to be
trapped in the inside of said trap chamber.
2. A flying insect trapping apparatus as set forth in claim 1,
characterized in that it comprises a trap container formed in its in-
side with the trap chamber and provided in its lower part with the
entry port and a pendant attractive plate having the vertical surface
portion and suspended through the entry port of the trap container.
3. A flying insect trapping apparatus as set forth in claim 2,
characterized in that said pendant attractive plate is of a shape such
that its upper side is in the form of a chevron or an arch which be-
comes narrower in width upwards.
4. A flying insect trapping apparatus as set forth in claim 2 or
claim 3, characterized in that said pendant attractive plate comprises
a plurality of pendant attractive plates joined together so that they
widthwise intersect with one another.
5. A flying insect trapping apparatus as set forth in claim 1,
characterized in that it comprises an upper container formed in its
inside with a trap chamber and provided at its underside with an en-
try port, and a lower support member having the vertical surface por-
tion and disposed under the upper container for supporting the upper
container wherein the lower support member has an upper end in-
serted through the entry port into the upper container.
6. A flying insect trapping apparatus as set forth in claim 1,
characterized in that it comprises:
a lower container formed over its entire side circumference
with an outer circumferential wall as the vertical surface portion and
an upper cover mounted on the lower container so as to cover
above the lower container and opened at its bottom,
wherein a horizontal spacing is formed between an upper out-
side of the outer circumferential wall of the lower container and a
lower inside of the upper cover as an entry port through which for
flying insects to enter.
7. A flying insect trapping apparatus as set forth in claim 6,
characterized in that said entry port is provided over the entire upper
outside circumference of the outer circumferential wall of the lower
container,
8. A flying insect trapping apparatus as set forth in claim 6 or
claim 7, characterized in that a trap chamber is formed in the inside
of at least one of said lower container and upper cover.

A flying insect trapping apparatus is provided that is capable
of attracting and trapping flying insects such as flies or wasps very
well and moreover without giving a user an unpleasant feeling. The
flying insect trapping apparatus comprises an attractive and inductive
member having a vertical surface portion, an entry port surrounding
an upper part of the attractive and inductive member and a
trap chamber communicating with the entry port, whereby a flying
insect is attracted by the member and to land on the surface portion
thereof and then is induced to move along the surface portion and to
pass through said entry port so as to be trapped in the inside of the
trap chamber.