A KEYLESS FUEL TANK COVER LOCKING MECHANISM
FIELD OF INVENTION
The present disclosure relates to a keyless fuel tank cover locking mechanism for
vehicles. Specifically, the said invention relates to the construction and mechanism of
opening and closing of the keyless fuel tank cover locking mechanism, whereby the
locking mechanism is devoid of a mechanical key and key hole. More specifically a
keyless fuel tank cover locking mechanism that provides secured locking of the fuel
tank of a vehicle.
BACKGROUND
Conventionally it is known that, vehicles are normally provided with a tank for access
to the fuel tank. The tank is operated manually by introducing and rotating a
mechanical key, which is normally the same key required for starting up the ignition
motor.
The conventional technique of using a mechanical key has a number of disadvantages.
One of disadvantages of using a mechanical key is that it is cumbersome for the user
to take out the key from ignition lock and insert the key in the fuel tank lock. In this
Way, every instance when refuelling is needed the user has to remove the key from
the ignition key hole and insert it into the key slot provided for the fuel tank to open
the fuel tank. Moreover, the use of the key is in any case awkward, especially when
the rider is wearing gloves
Another disadvantage is that, the regular insertion and removal of the mechanical key
from the key slots of ignition key hole and fuel tank key slot will lead to rapid wear
and tear of the mechanical key. The wear and tear of the mechanical key will lead to
damage of the profile on the key, under which condition the user has to get a new key
made again.
Yet another disadvantage is that, many users have a tendency of forgetting the key in
the lock which may lead to the theft of the vehicle. Moreover, mechanical keys can be
copied easily which again increases the chances of theft of the vehicle. Several
attempts have been made to provide an anti-theft/security device/system for vehicles.
Further, many sophisticated electrical/electronic systems have been developed for
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preventing the theft of the vehicles. However, the said systems are either costly or
have a complex arrangement and their installation is very expensive.
Thus, there always existed a need in the art to provide an alternative technique that
overcomes the above mentioned disadvantages and therefore the inventors of the
present disclosure provide a keyless fuel tank cover locking mechanism for vehicles
(two wheeler, three wheeler, four wheeler) whereby there is no need to insert the
mechanical key to open and close the same, and at the same time user friendly and
does not allow the unknown person to open and close the lock without proper
authentication.
Therefore, it is an aim of the present disclosure to provide a keyless fuel tank cover
locking mechanism that is devoid of key hole and mechanical key operation and
provides a secure process on the basis of authentication.
Another aim of the present disclosure is to provide a keyless fuel tank cover locking
mechanism whereby the securing process is carried out electronically, without any
latch or wire arrangement.
Another aim of the present disclosure is to provide a keyless fuel tank cover locking
mechanism which provides prevention from theft.
Yet another aim of the present disclosure is to provide a keyless fuel tank cover
locking mechanism that is capable of operating simultaneously with steering and/or
ignition locking mechanism, the mechanism is electronically operating by a common
smart key for any desired conditions.
SUMMARY OF THE DISCLOSURE
The present disclosure relates to an improved keyless fuel tank cover locking
mechanism for vehicles. More specifically, the present disclosure relates to the
construction and mechanism of an improved keyless fuel tank cover locking
mechanism which is operated by a smart key. Accordingly, the present disclosure
provides a keyless fuel tank cover locking mechanism, comprising a cover provided
with a provision for being operationally coupled with a locking plate. The locking
plate is incorporated in a housing and is operationally configured with an electronic
actuator assembly by means at least one locking element the locking plate comprising
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a predefined guiding slot to accommodate the locking element. The locking element is
movable in the guiding slot between a blocked and unblocked positions and a microswitch
to detect a position of the cover and transmit a signal to the control unit to
activate electronic actuator to enable locking and unlocking of the fuel tank cover.
BRIEF DESCRIPTION OF FIGURES
Further aspects and advantages of the present disclosure will be readily understood
from the following detailed description with reference to the accompanying
figures. The figures together with a detailed description below, are incorporated in
and form part of the specification, and serve to further illustrate the embodiments
and explain various principles and advantages, but not limiting the scope of the
invention. In the accompanying drawings,
Figure 1 illustrates an exploded view of present keyless fuel tank cover locking
mechanism for vehicles in accordance to the present disclosure.
Figure 2 illustrates a sectional view of the present keyless fuel tank cover locking
mechanism for vehicles in accordance to present disclosure, wherein the fuel tank cap
is in close condition.
Figure 3 illustrates a sectional view of the present keyless fuel tank cover locking
mechanism for vehicles in accordance to present disclosure, wherein the fuel tank cap
is in open condition.
Figure 4 illustrates an isometric view of the locking element of the present keyless
fuel tank cover locking mechanism for vehicles in accordance with an embodiment of
the present disclosure.
Figure 5 illustrates a top view of top cover in accordance to present disclosure.
Figure 6 illustrates a sectional view of the present keyless fuel tank cover locking
mechanism for vehicles in accordance to present disclosure, wherein the fuel tank cap
is in close condition.
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Figure 7 illustrates a sectional view of the present keyless fuel tank cover locking
mechanism for vehicles in accordance to present disclosure.
Figure 8 illustrates a sectional view of the present keyless fuel tank cover locking
mechanism for vehicles in accordance to present disclosure.
Figure 9 illustrates a top view of the guiding slot of the locking plate of the present
keyless fuel tank cover locking mechanism for vehicles in accordance with another
embodiment of the present disclosure.
Figure 10 illustrates a sectional view of the present keyless fuel tank cover locking
mechanism for vehicles in accordance to present disclosure, wherein the keyless fuel
tank cover locking mechanism is in close condition.
Figure 11 illustrates a sectional view of the present keyless fuel tank cover locking
mechanism for vehicles in accordance to present disclosure, wherein the fuel tank cap
is in close condition
Skilled artisans will appreciate that elements in the drawings are illustrated for
simplicity and have not necessarily been drawn to scale. For example, the dimensions
of some of the elements in the drawings may be exaggerated relative to other elements
to help to improve understanding of embodiments of the present disclosure.
DETAILED DESCRIPTION OF DISCLOSURE
While the invention is subject to various modifications and alternative forms, specific
embodiment thereof has been shown by way of example in the figures and will be
described below. It should be understood, however that it is not intended to limit the
invention to the particular forms disclosed, but on the contrary, the invention is to
cover all modifications, equivalents, and alternative falling within the spirit and scope
of the invention as defined by the appended claims.
Before describing in detail the various embodiments of the present disclosure it may
be observed that the novelty and inventive step that are in accordance with the present
disclosure resides in the construction and function of a keyless fuel tank cover locking
mechanism. It is to be noted that a person skilled in the art can be motivated from the
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present disclosure and can perform various modifications. However, such
modifications should be construed within the scope of the invention.
Accordingly, the drawings are showing only those specific details that are pertinent to
understanding the embodiments of the present disclosure so as not to obscure the
disclosure with details that will be readily apparent to those of ordinary skill in the art
having benefit of the description herein.
The terms “comprises”, “comprising”, or any other variations thereof, are intended to
cover a non-exclusive inclusion, such that an assembly, setup, system, device
that comprises a list of components does not include only those components but
may include other components not expressly listed or inherent to such system or
device or setup. In other words, one or more elements in the system or apparatus or
device proceeded by “comprises a” does not, without more constraints, preclude the
existence of other elements or additional elements in the assembly or system or
apparatus. The following paragraphs explain present disclosure. The invention in
respect of the same may be deduced accordingly.
Accordingly, the present disclosure provides a keyless fuel tank cover locking
mechanism, comprising
a cover provided with a provision for being operationally coupled with
a locking plate, the locking plate being incorporated in a housing and being
operationally configured with an electronic actuator assembly by means at
least one locking element,
the locking plate comprising a predefined guiding slot to accommodate
the locking element, the locking element being movable in the guiding slot
between a blocked and unblocked positions, and
a feed back system to detect a state of the keyless fuel tank cover and
transmit a signal to a control unit to activate the electronic actuator to enable
locking or unlocking of the keyless fuel tank cover.
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In an embodiment of the present disclosure, the micro-switch sub assembly comprises
a micro-switch and a plunger.
In another embodiment of the present disclosure, the cover (1) is hinged at one end of
the housing.
In yet another embodiment of the present disclosure, the cover comprises a locking
provision to receive a primary projection of the locking plate.
In one more embodiment of the present disclosure, the cover comprises a lobed
portion adapted to actuate the plunger of the micro-switch.
In one other embodiment of the present disclosure, the locking plate has a top surface
and a lower surface and the lower surface having a guiding slot.
In yet another embodiment of the present disclosure, the primary projection of the
locking plate is adapted to operatively engage/disengage with the cover.
In a further embodiment of the present disclosure, the guiding slot of the locking plate
is in ‘L’ shape, having a first arm and a second arm.
In an embodiment of the present disclosure, the locking plate is attached with a knob
in order to obtain movement so that the locking plate in a longitudinal direction.
In yet other embodiment of the present disclosure, the locking element comprises a
projection protruding vertically and adapted to be received in the guiding slot of the
locking plate.
In an embodiment of the present disclosure, the projection of the locking pin is
engaged within the first arm of the guiding slot of locking plate.
In another embodiment of the present disclosure, in the blocked position, the
projection of the locking element is at position (P1) in the guiding slot.
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In one other embodiment of the present disclosure, in the unblocked position, the
projection of the locking element is at position (P2) in the guiding slot.
In an embodiment of the present disclosure, the projection of the locking pin is
engaged within the second arm of the guiding slot of locking plate, while user
manually moves the knob.
In one another embodiment of the present disclosure, the housing comprises a ring on
the top surface.
In a still further embodiment of the present disclosure, the feedback system comprises
a micros-switch; the micro-switch has a plunger adapted to be actuated by a lobe of
cover.
The following paragraphs describe the present disclosure with reference to Figures 1
to 9 according to an embodiment of the present disclosure.
As shown in figure 1, the keyless fuel tank cover locking mechanism comprises a
cover assembly having a cover (1). The said cover is a rigid structure for covering the
fuel tank of the vehicle from the external environment. The said cover (1) is a
generally circular disc having an upper face and a lower face. A sealing pad (2) with a
vapour control valve (3) is secured by means of a case (4) to the lower face of the
cover (1). A sealing collar (5) is further secured to the bottom face of the cover (1)
along with a bottom plate (6). In the mounted condition, the cover assembly is secured
with a housing assembly for operatively opening/closing the fuel tank. As shown in
figure 2, the cover (1) comprises a projection (1b) extending in the downward
direction. The projection (1b) has a near end (N) and a far end (F). A locking
provision (1a) is provided at the near end of the projection (1b) for operatively
engaging/disengaging with a locking plate (11). The far end (F) of the projection (1b)
has a tapered edge (Te) formed in the downward direction. The tapered edge (Te) of
the projection (1b) facilitates smooth engagement with the locking plate (11) during
operation of the keyless fuel tank cover locking mechanism. A lobed portion (1c) is
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provided adjacent to the cover pin (1b). The lobed portion (1c) is adapted to actuate a
plunger (13) of micro-switch (14) in the closed condition of the fuel tank cover. The
cover (1) is secured to a ring (9) of the housing assembly through (1d) formed on the
cover (1). The hinge (1d) allows opening and closing movement of the cover
assembly in an angular direction about hinge 1(d) during operation of the said keyless
fuel tank cover locking mechanism.
As shown in figure 1, the housing assembly comprises housing (10) having an internal
region with multiple slots for accommodating various components of the locking
mechanism. A locking slot (Ls) having slot (S) is provided externally on the housing
(10). The locking plate (10) is mounted resiliently in the said locking slot (Ls); the
locking plate (10) being energized by at least one spring (12) towards the centre of the
housing (10) in the mounted condition. The locking plate (11) a solid structure having
a predefined shape and configuration. However, the shape, size and configuration of
the locking plate (11) may vary as per the requirements of the user/manufacturer. The
said locking plate (11) has a top surface and a lower surface. The locking plate further
comprises a primary projection (11a) such that in the mounted condition, the primary
projection (11a) is extending horizontally towards the centre of the housing (1). The
primary projection (11a) of the locking plate (11) has a tapered edge and is adapted to
be received in the locking provision (1a) of the cover (1) in the locked condition of
the said keyless fuel tank cover locking mechanism as shown in figure 2. The lower
surface of the locking plate (11) has a guiding slot (11b) formed so as to operationally
receive a locking element (18) as depicted in figures 2 and 3. The guiding slot (11b) is
generally ‘L’ shaped having a first arm (A) and a second arm (B). In the mounted
condition, the locking plate (11) is disposed between the housing (10) and ring (9) in
the locking slot (Ls) such that the guiding slot (11b) of the locking plate (11) is
aligned with the slot (S) in the locking slot (Ls) of the housing (10). A protrusion
(18a) of the locking element emerges through the locking slot (Ls) of the housing and
is received movably in the transverse direction in the first arm (A) of the guiding slot
(11b). The term transverse herein refers to a direction along the first arm (A) of the
guiding slot (11b) in the plane of the locking plate. In the mounted condition, the
locking plate (10) is being loaded resiliently in the by means of spring (12) in the
longitudinal direction. The term longitudinal herein refers to a direction along the
second arm (B) of the guiding slot (11b) in the plane of the locking plate. The ring (9)
10
is adapted to secure the housing (10) with the vehicle body in the mounted condition.
A hole (Hr) is provided on the ring (9) for mounting a knob (8). As shown in figure 3,
the knob (8) is attached to the top surface of the locking plate (11) through the hole
(Hr) in the ring (9). The knob (8) may be operated in the longitudinal direction by a
user for opening the fuel tank lock by manually sliding the locking plate (11) in the
longitudinal direction away from the centre of the cover (1) as shown in figures 3 and
4.
As shown in figure 1, an actuator assembly is disposed in the interior of the housing
(10). The said actuator assembly comprises an electronic actuator (16), locking
element (18) and a feedback system. The said electronic actuator (16) is disposed in
an encapsulation formed between a casing (15) and cap (17). The locking element
(18) is mounted in a mounting slot in the casing (15) so as to be operationally
configured with the electronic actuator (16). As shown in figure 4, the locking
element (18) comprises a protrusion (18a) extending in the vertical direction from the
locking element (18) towards the locking plate (11). The protrusion (18a) of the
locking element (18) is adapted to pass through the slot (S) of the locking slot (Ls)
and be received operatively in the guiding slot (11b) of the locking plate (11); the
locking element (18) being moveable in the transverse direction by the electronic
actuator (16) during operation of the said keyless cover locking mechanism. The
electronic actuator (16) enables movement of the protrusion (18a) of the locking
element (18) in the transverse direction in the first arm (A) of the guiding slot (11b) of
the locking plate (11) upon authentication by the smart key so as to lock/unlock the
keyless fuel tank cover locking mechanism.
As shown in figure 1, the feedback system comprises a micro-switch (14). The said
micro-switch (14) is mounted in the casing (15) of the actuator assembly adjacent to
the locking element (18). The micro-switch (14) has a plunger (13) such that in the
closed condition of the cover, said plunger (13) is actuated by the lobed portion (1c)
of the cover as illustrated in figure 9. The micro-switch (14) is configured to detect a
position of the locking element (18) with respect to the guiding slot (11b) of the
locking plate (11) and transmit a signal to the electronic actuator (16), thereby
enabling the locking and unlocking of the keyless fuel tank cover mechanism.
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Referring to figures 5, 6, 8 and 9 in the locked condition of the keyless fuel tank cover
locking mechanism, the cover (1) is constraint in the closed condition by means of the
primary projection (11a) of the locking plate (11) being engaged with the locking
provision (1a) of the cover (1). In this condition the movement of locking plate (11) in
the longitudinal direction is restricted as the protrusion (18a) of the locking element
(18) is at position (P1) in the first arm (A) of the guiding slot (11b). This is termed as
the blocked position of the locking plate (11). In the blocked condition, the knob (8)
cannot be operated by a user to manually open the cover (1). In this condition, the
plunger (13) is in the actuated condition by the lobe portion (1c) of the cover (1). As
the user activates the locking mechanism by actuation switch/ smart key, the
electronic actuator (16) receives an electronic signal. The electronic actuator (16)
moves/drives the locking element (18) in the transverse direction. Correspondingly
the protrusion (18a) of the locking element (18) moves in the transverse direction in
the first arm (A) of the guiding slot (11b) from position (P1) to arrive at position (P2)
in the guiding slot (11b) as shown in figure 7. This is termed as the unblocked
position of the locking plate (11). In this position, the knob (8) can be operated by a
user to manually open the cover (1).
In the unblocked condition, as the user slides the knob (8) away from the cover (11) in
the longitudinal direction, the locking plate (11) moves such that the protrusion (18a)
of the locking pin gets engaged with the second arm (B) of the guiding slot (11b) of
the locking plate (11). Correspondingly the primary projection (11a) of the locking
plate (11) gets retraced from the locking provision (1a) of the cover (1) to energize the
spring (12). In this condition, due to resilient action of resilient mean (7), the cover (1)
ejects slightly to open about hinge (1d) of the cover (1). As the user releases the knob
(8) the spring (12) gets de-energized to bring the locking plate (11) to unblocked
condition. In this position, the cover assembly can be rotated by the user to access the
fuel tank. In the open condition of the cover assembly, the lobed portion (1c) of the
cover (1) disengages with the plunger (13) and the micro-switch (14) gets de-actuated.
The micro-switch (14) transmits a feedback signal to the electronic actuator (16)
identifying the position of the cover assembly (1) in open condition.
In order to close the cover, the user manually closes the cover about hinge (1d). The
tapered edge (Te) of the projection (1b) collides with a taper edge of the primary
projection (11a) of the locking plate (11). Due to cam action between the tapered edge
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(Te) of the projection (1b) of the cover (1) and the tapered edge of the primary
projection (11a) of the locking plate (11), the locking plate (11) moves away from the
cover (1) to energize the spring (12). When the cover is in completely closed position
the spring (12) gets de-energized and pushes the locking plate (11) towards the cover
such that the primary projection (1a) gets engaged with the locking provision (1a).
Hence the cover assembly is locked by locking plate (11). In this condition the
plunger (13) of the micro-switch (14) is pressed by the lobed portion (1c) of the cover
(1) and the micro-switch (14) gets actuated. A signal is transmitted by the microswitch
(14) to a control unit which in turn sends a signal to the electronic actuator (16)
to the locking element (18) from unblocked to blocked condition to ensure locking of
the keyless fuel tank cover locking mechanism.
ADVANTAGES OF THE INVENTION
The principal advantage of the present keyless fuel tank cover locking mechanism is
that it is devoid of key hole and mechanical key operation and provides a secure
process on the basis of authentication.
Another advantage of the present keyless fuel tank cover locking mechanism is that
the securing process is carried out electronically, without any latch or wire
arrangement.
Yet another advantage of the present keyless fuel tank cover locking mechanism is
that it is easy to use.
One more advantage of the present keyless fuel tank cover locking mechanism is that
it is capable of being operated simultaneously with steering and/or ignition locking
mechanism, the locking mechanism being electronically operated by a common smart
key.
Equivalents:
With respect to the use of substantially any plural and/or singular terms herein, those
having skill in the art can translate from the plural to the singular and/or from the
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singular to the plural as is appropriate to the context and/or application. The various
singular/plural permutations may be expressly set forth herein for sake of clarity.
It will be understood by those within the art that, in general, terms used herein, and
especially in the appended claims (e.g., bodies of the appended claims) are generally
intended as “open” terms (e.g., the term “having” should be interpreted as “having at
least,” etc.). It will be further understood by those within the art that if a specific
number of an introduced claim recitation is intended, such an intent will be explicitly
recited in the claim, and in the absence of such recitation no such intent is present. For
example, as an aid to understanding, the following appended claims may contain
usage of the introductory phrases “at least one” and “one or more” to introduce claim
recitations. However, the use of such phrases should not be construed to imply that
the introduction of a claim recitation by the indefinite articles “a” or “an” limits any
particular claim containing such introduced claim recitation to inventions containing
only one such recitation, even when the same claim includes the introductory phrases
“one or more” or “at least one” and indefinite articles such as “a” or “an” (e.g., “a”
and/or “an” should typically be interpreted to mean “at least one” or “one or more”);
the same holds true for the use of definite articles used to introduce claim recitations.
In addition, even if a specific number of an introduced claim recitation is explicitly
recited, those skilled in the art will recognize that such recitation should typically be
interpreted to mean at least the recited number (e.g., the bare recitation of “two
recitations,” without other modifiers, typically means at least two recitations, or two
or more recitations). It will be further understood by those within the art that virtually
any disjunctive word and/or phrase presenting two or more alternative terms, whether
in the description, claims, or drawings, should be understood to contemplate the
possibilities of including one of the terms, either of the terms, or both terms. For
example, the phrase “A or B” will be understood to include the possibilities of “A” or
“B” or “A and B.”
While various aspects and embodiments have been disclosed herein, other aspects and
embodiments will be apparent to those skilled in the art. The various aspects and
embodiments disclosed herein are for purposes of illustration and are not intended to
be limiting, with the true scope and spirit being indicated by the following claims.
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List of reference numerals:
1 Cover
1a Locking provision
1b Projection
1c Lobed portion
1d Hinge
2 Sealing pad
3 Control valve
4 Case
5 Sealing caller
6 Bottom plate
7 Resilient mean
8 Knob
9 Ring
10 Housing
11 Locking plate
11a Primary projection
11b Guiding slot
12 Spring
13 Plunger
14 Micro-switch
15 Casing
16 Electronic actuator
17 Cap
18 Locking element
15
18a Protrusion
A First Arm of guiding slot
B Second Arm of guiding slot
Hr Hole
F Far end of projection
N Near end of projection
Te Tapered Edge of projection
Ls Locking slot
S Slot

We claim
1. A keyless fuel tank cover locking mechanism, comprising
a cover (1) provided with a locking provision (1a) for being
operationally coupled with a locking plate (11), the locking plate (11) being
incorporated in a housing (10) and being operationally configured with an
electronic actuator assembly by means at least one locking element (18),
the locking plate (11) comprising a predefined guiding slot (11b) to
accommodate a locking element (18), the locking element (18) being movable
in the guiding slot (11b) between a blocked and unblocked position, and
a feedback system to detect a state of the keyless fuel tank cover (1)
and transmit a signal to a control unit to activate the electronic actuator (16) to
enable locking or unlocking of the keyless fuel tank cover.
2. A keyless fuel tank cover locking mechanism as claimed in claim 1, wherein
the cover (1) is hinged at one end of the housing (10).
3. A keyless fuel tank cover locking mechanism as claimed in claim 1, wherein
the cover (1) comprises a locking provision (1a) to receive a primary
projection (11a) of the locking plate (11).
4. A keyless fuel tank cover locking mechanism as claimed in claim 1, wherein
the cover (1) comprises a lobed portion (1c) adapted to actuate the plunger
(13) of the micro-switch (14).
5. A keyless fuel tank cover locking mechanism as claimed in claim 1, wherein
the locking plate (11) has a top surface and a lower surface and the lower
surface having a guiding slot (11b).
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6. A keyless fuel tank cover locking mechanism as claimed in claim 1, wherein
the primary projection (11a) of the locking plate (11) is adapted to operatively
engage/disengage with the cover (1).
7. A keyless fuel tank cover locking mechanism as claimed in claim 1, wherein
the guiding slot (11b) of the locking plate (11) is in ‘L’ shape, having a first
arm (A) and a second arm (B).
8. A keyless fuel tank cover locking mechanism as claimed in claim 1, wherein
the locking plate (11) is attached with a knob (8) in order to obtain movement
so that the locking plate (11) in a longitudinal direction.
9. A keyless fuel tank cover locking mechanism as claimed in claim 1, wherein
the locking element (18) comprises protrusion (18a) extending vertically and
adapted to be received in the guiding slot (11b) of the locking plate (11).
10. A keyless fuel tank cover locking mechanism as claimed in claim 1, wherein
the protrusion (18a) of the locking element (18) is engaged within the first arm
(A) of the guiding slot (11b) of locking plate.
11. A keyless fuel tank cover locking mechanism as claimed in claim 1, wherein
in the blocked position, the protrusion (18a) of the locking element (18) is at
position (P1) in the guiding slot (11b).
12. A keyless fuel tank cover locking mechanism as claimed in claim 1, wherein
in the unblocked position, the protrusion (18a) of the locking element (18) is at
position (P2) in the guiding slot (11b).
13. A keyless fuel tank cover locking mechanism as claimed in claim 1, wherein
the protrusion (18a) of the locking pin (18) is engaged within the second arm
(B) of the guiding slot (11b) of locking plate, while user manually moves the
knob.
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14. A keyless fuel tank cover locking mechanism as claimed in claim 1, wherein a
ring (9) is adapted to secured on top surface of the housing (10).
15. A keyless fuel tank cover locking mechanism as claimed in claim 1, wherein
the feedback system comprises a micro-switch (14); the micro-switch (14) has
a plunger (13) adapted to be actuated by a lobe portion (1c) of the cover (1).