FIELD OF INVENTION
This invention relates to improved rear bumper of vehicle. This results in
prevention of rust in body panel and peel off of paint from rear bumper.
BACKGROUND/PRIOR ART
Conventionally, it is known to have been provided a mounting part with the
rear bumper for mounting on the rear panel. However, the mounting part is
provided separately without being integral to the rear bumper. Therefore, the
assembly is complicated and time consuming. As a result, the assembly cost is
high.
In order to obviate the above drawbacks, the bumper is integrally provided with
the mounting part (dog house) for mounting on the rear panel of vehicle.
The rear bumper dog house is mounted on the rear body panel by means of a
plurality of clips/screws. However, the disadvantage is that, there are higher
chances of paint peel off and rust due to continuous rubbing of said rear
bumper dog house with rear skirt panel during movement of vehicle. The
continuous rubbing takes place due to contact of full surface of the dog house
with said rear panel.
Now, reference may be made to the following prior arts:-
KR100633416Bl:- An apparatus for mounting a rear bumper and an
undercover is provided to simultaneously receive a horizontal fastening force
and a vertical fastening force to secure fasten the rear bumper to the
undercover. An apparatus for mounting a rear bumper and an undercover
includes a separate mounting bracket, and a fastening device. The separate
mounting bracket is interposed between the rear bumper and the undercover
to horizontally fasten the bumper to the undercover. The mounting bracket
includes an upper piece, a lower piece and an intermediate piece. The lower
piece is spaced apart from a support member and fastened by thc fastcning
device. The upper piece is fastened at a position higher than the lower piece by
the rear bumper.
It provides one additional mounting without decreasing surface area of contact
to reduce rust.
US2006001731 1A1:- A fastening structure is provided which mounts a spoiler
between a front bumper face and an under cover. The front bumper face has a
lower end portion disposed in overlapping relation to a front end part of the
under cover such that the lower end portion of the front bumper facc is located
below the front end part of the under cover. Downwardly projecting spacer
portions are formed on an under surface of the front end part. When the lower
end portion of the front bumper face and the front end part of the under cover
overlap each other, the lower end portion of the front bumper face and the front
end part of the under cover are spaced from each other by the spacer portions
to define a clearance therebetween. The spoiler has a mounting portion
retained in the clearance.
It provides full surface contact area between the mountings.
JP2012131401A:- The mounting structure of the bumper holder is composed
to be installed at a front end of a fender panel located at a side face in the
vehicle width direction of a vehicle body by the use of a bolt, in order to install
a bumper panel. In the mounting structure of the bumper holder; the bumper
holder is provided with, from outside in the vehicle width directed toward the
center side, a bolt insertion part formed by being dented; the bolt insertion part
is provided with a bolt insertion hole which can penetrate a screw part of a bolt
in the vehicle width direction; a lower part of a peripheral wall of the bolt
insertion part is formed corresponding to a head of the bolt; and a through hole
is formed to a lower side of the head of the bolt in the bolt insertion part.
It is related to bumper holder for prevention of water intrusion wherein contact
area between the mountings is more.
JP 20072378924:- This mounting structure is constituted so that a retainer is
mounted on an outer lens as a through hole which is a mounting part to a
head lamp and a mounting screw are arranged on a side wall extended below a
second stage rib which is a holding part to support mass of a bumper cover.
Consequently, the retainer is rarely deformed by the mass of the bumper cover
and the retainer can keep an interval between the bumper cover and the head
lamp outer lens constant.
It is directed to positioning of bumper and lamp with no provision of reduction
in contact area between the mountings.
KR19970074235A:- Automatic direction (A) the present invention refers to
turn-signal lamp and parking state a user notifies another of his location
parking lamp separated each lever moves in the casing of the time by fixing a
bumper the, impact outside supports the lamp thereby preventing damage to
the bumper mounting system in an automobile lamp relates to turn-signal
lamp producing a bulb of a automatic transmission is provided to case number
and, a once mounted part by case number 1 is adapted to be secured to an
other screw by case number integral with a bumper fixed to numbcr 1 lens and
a, parking producing a bulb of an automatic transmission is provided to case
number 2 and, once mounted part by number 2 case is adapted to be secured
to another screw by case number integral with a bumper fixed to number 2
lens consists of to.
It discloses improved mounting and interlocking with the provision of electrical
equipment like parking lamps.
CN102275554A:- This invention discloses a kind of automobile front bumper
.mounting structure, including the front bumper on the turned-over edge of the
circular hole, is arranged on the edge of the fender the board turns a square
hole, is characterized in that: the front bumper of the flanging parallel with the
horizontal plane, the parallel to the horizontal panel also board flange states
the wing; front bumper on the turned-over edge of the center of the circular
hole of the edge of the fender the board turns corresponding to square the
center of the hole; a nut seat and wing the sub-board turns edge is connected
with the square hole, the nut seat and the front bumper on the turned-over
edge of the circular hole of the coaxial; a self-tapping screw passes through the
circular hole of the turned edge is connected with the nut seat.
It is related to headlamp lens and housing.
In order to address the aforesaid drawbacks, the present invention is
introduced, which discloses an improved rear bumper of vehicle.
OBJECTS OF THE INVENTION
The primary object of the present invention is to provide improved rear bumper
of vehicle which overcomes disadvantages associated with the prior art.
Another object of the present invention is to provide improved rear bumper of
vehicle which is simple in construction.
Further object of the present invention is to provide improved rear bumper of
vehicle which is reliable.
Still another object of the present invention is to provide improved rear
bumper of vehicle which decreases contact area between rear bumper and
panel rear skirt.
SUMMARY OF THE INVENTION
According to this invention, there is provided improved rear bumper of vehicle
comprising of a bumper integrally provided with dog house (mounting part) for
mounting on rear panel of vehicle wherein a novel dog house is providcd to
reduce area of contact with the rear panel.
The mounting part is hereinafter referred to as dog house throughout the
specification.
BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS
Further objects and advantages of this invention will be more apparent from
the ensuing description when read in conjunction with the accompanying
drawings and wherein:
Fig. 1 shows: conventional dog house and its mounting.
Fig. 2 shows: one embodiment of dog house of present invention.
Fig. 3 shows: mounting of dog house of fig. 2.
Fig. 4 shows: another embodiment of dog house and its mounting according to
present invention.
DETAILED DESCRIPTION OF THE INVENTION WITH REFERENCE TO T B
ACCOMPANYING DRAWINGS
The present invention discloses improved rear bumper of vehicle.
Reference may be made to fig. 1 indicating known dog house (1) integrally
provided with bumper (2) mounted on rear panel (3) by means of clip (4).
The upper surface of the dog house is completely in contact with the rear
panel. This leads to higher chances of paint peel off from the rear bumper and
rust in the rear panel due to continuous rubbing of said rear bumper dog
house with said rear panel during movement of vehicle.
In order to overcome the above drawback, the present invention is introduced.
In order to reduce surface area of contact between the dog house and panel,
the dog house (mounting part) can be provided with a plurality of ribs on its
top surface. However, less number of ribs result in less strength of the
assembly. To maintain the strength, more number of ribs is required to be
provided on the surface, which again leads to same problem like in prior art.
Hence, another provision is made to maintain the same strength like before.
The same is discussed hereinbelow.
Now, reference may be made to fig. 2 and 3, wherein the dog house (1) is
integrally provided with rear bumper (2) for mounting on the rear panel (3),
wherein the dog house is improved.
The top surface of said dog house is improved by providing a
projectedlextended member (4) integrally around circular hole of the dog house
to be in contact with rear panel. The member (4) faces towards the panel i.e.
outwardly from the dog house.
The aforesaid provision reduces the surface area of contact between the dog
house and panel as shown in fig. 3.
Alternatively, a plurality of block mountings (M) can also be provided around
the circular hole of said rear bumper dog house as shown in fig. 4. The block
mountings protrude outward towards the panel.
The aforesaid provision constituting another embodiment still reduces the
surface area of contact between the dog house and said rear panel.
The dog house integrally provided with said rear bumper can be connected to
the rear panel with the help of clip or screw by clipping or screwing
respectively. However, screwing is associated with the following shortcomings:-
- Complicated assembly
- Time consuming
- Expensive
- Difficulty in handling
- Requirement of special equipment for screwing and unscrewing
- Development of higher strength, which is not required for the invention
- It may lead to breakage of bumper.
However, clipping involves the following advantages:-
- Simple assembly
- Less time consuming
- Cost effective
- Easy handling
- Development of strength sufficient for the present invention.
Hence, clipping is preferred over the screwing. Therefore, clipping is carried out
instead of the screwing for the instant invention.
The above provision results in prevention of rust in body panel and paint peel
off from the rear bumper by decreasing contact area between the rear bumper
dog house and rear panel.
The present invention helps in achieving the advantages mentioned herein
above without compromising quality i. e. by maintaining same strength be tween
rear panel and bumper like prior art.
The dog house is made of material such as plastic i.e. any polymer of plastic.
Again, the dog house can be manufactured by the method of injection
moulding. The material and method hereinabove are given as example without
restricting scope of the invention to the same. Thus, other materials and
methods readily apparent to person skilled in the art are understood to be
within the scope of the invention,
Further, the invention meets vehicle durability test requirement.
It is to be noted that the present invention is susceptible to modifications,
adaptations and changes by those skilled in the art. Such variant embodiments
employing the concepts and features of this invention are intended to be within
the scope of the present invention, which is further set forth under the
following claims:

WE CLAIM:
1. Improved rear bumper of vehicle comprising of bumper integrally
provided with dog housc (mounting part) for mounting on rear panel of
vehicle wherein a novel dog house is provided to reduce area of contact
with the rear panel.
2. Improved rear bumper of vehicle as claimed in claim 1, wherein the dog
house comprising of a projectedlextended member integrally provided
around its hole to be in contact with rear skirt panel.
3. Improved rear bumper of vehicle as claimed in claim 1, wherein the dog
house comprising of a plurality of block mountings integrally provided
around its hole for being in contact with said rear panel.
4. Improved rear bumper of vehicle as claimed in any of the prcceding
claims, wherein the extended member/block mountings protrude
outward from the dog house and face towards the rear panel.
5. Improved rear bumper of vehicle as claimed in any of the prcceding
claims, which meets vehicle durability test requiremcnt.
6. Improved rear bumper of vehicle substantially as herein described with
reference to the accompanying drawings.