FIELD OF DISCLOSURE
The present disclosure relates to an ignition lock with improved functionality for twowheeler
motor vehicles. More specifically, the said disclosure relates to an ignition
lock having mechanism for unlocking the steering lock, the seat lock and the fuel tank
cover lock with improved operability.
BACKGROUND OF THE DISCLOSURE
Generally, the market for two-wheeler vehicles are enjoying resurgences in recent
years. However, drivers of such vehicles are still confronted with a number of
problems that are exasperated by the lack of secured and compact lock systems.
Existing ignition locks systems/switches are used solely for enabling engine start up
in vehicles, such as two wheelers. Most of these two wheelers have a separate key
hole to unlock various locking latches for example: a steering lock, a helmet lock, a
seat lock, a fuel tank lock etc.
Conventionally, a steering lock system in two wheelers is provided with a lock pin
protruding out of a lock pin body part including a key cylinder and a lock panel. The
lock pin functions to unlock the steering lock when an ignition key is inserted into an
ignition switch cum steering lock and then turned therein. However, this technology
emphasizes the application of a plurality of lock systems, each for respective locks.
Recent developments in this domain consolidated the existing plurality of lock
systems into an integrated lock system. The integrated lock system is structured with
the ignition switch wherein the integrated locking system is uniquely provided with a
fuel tank opening function and a seat lock opening function. In particular, the
movement in the integrated lock system is governed by a rotor that rotates in any
required rotational direction with respect to ON and OFF position of the ignition
switch. Further, the ignition switch in such integrated lock systems are covered by
shutter. Hence, the said integrated lock system gets enabled only on opening the
shutters (after inserting the ignition key into the ignition switch) by a push button or a
magnet key. Additionally, the presence of elements such as rotor, shutter, and the like,
result in a robust and complicated integrated lock system. Moreover, such integrated
lock systems are less comfortable to handle and are costly as well.
3
Hence, there is an urgent need of a simple, compact and affordable integrated lock
system to overcome the above-mentioned drawbacks available with the present
integrated lock system with improved functionality for two wheelers. To overcome
the shortcomings of the existing ignition switch, a solution has been provided such as,
to provide multiple cables in the ignition lock connected to locking latches that can be
operate by using ignition lock to unlock various locking latches, for example; a
steering lock, a helmet lock, a seat lock, a fuel tank cover lock etc.
In other words, the researchers have developed a user friendly and technically
advanced cable actuating lock in vehicles. More specifically, such ignition locks,
whereby the cables are provided which are capable of actuating locking latches such
as fuel tank cover lock or seat lock of a vehicle.
SUMMARY OF THE DISCLOSURE
Accordingly, the present disclosure relates to a multi-function ignition lock
comprising an upper body being coupled co-axially with a body switch and having a
hollow internal space. The hollow space accommodates a rotor assembly comprising a
rotor mounted rotatably in the upper body. A cam shaft is coupled to the rotor
assembly. The cam shaft is configured to rotate on rotation of the rotor. A sliding
plate is configured to engage with the cam shaft to lock/unlock a steering lock through
a locking bar. A rotary actuator is configured to rotate on rotation of the rotor in a
prescribed direction and angle. The rotary actuator is configured to unlock a locking
mechanism (e.g. seat lock). The said rotary actuator auto returns to home position due
to an energizing mean after unlocking the locking mechanism. A linear actuator is
configured to engage with the cam shaft to unlock another locking mechanism (e.g.
fuel tank cover lock). The cam shaft is configured to impart a linear motion on
movement of the linear actuator. The said linear actuator auto returns to home
position due to an energizing mean after unlocking the another locking mechanism.
At least one actuating cable is connected to the rotary actuator (5) and linear actuator
(18) respectively.
In an embodiment of the present disclosure, the rotor comprises a first end and a
second end and a cylindrical portion extending there between.
4
In another embodiment of the present disclosure, the rotor comprises a plurality of
projections on the cylindrical portion.
In a further more embodiment of the present disclosure, the cam shaft comprises a
proximal end and a distal end and the proximal end of the cam shaft is engaged in a
cavity formed on the second end of the rotor.
In another embodiment of the present disclosure, the cam shaft is configured with a
rotor spring at the proximal end and a cam spring at the distal end.
In one more embodiment of the present disclosure, the cam shaft is provided with a
cam arm and a cam portion.
In another embodiment of the present disclosure, the sliding plate comprises an
elliptical slot to allow insertion of cam portion and provide the linear motion of the
sliding plate.
In another embodiment of the present disclosure, the rotary actuator comprises a
hollow cylindrical body with a plurality of protrusions protruding inwardly and
operationally engaged with the rotor.
In another embodiment of the present disclosure, the rotary actuator is engaged with a
torsion spring to allow auto-return of the actuator.
In one more embodiment of the present disclosure, the rotary actuator comprises a
circular flange having at least one extended projection perpendicular to the plane of
the rotation of the rotor.
In another embodiment of the present disclosure, the linear actuator is energized with
a compression spring located in the body switch.
In another embodiment of the present disclosure, the linear actuator is engaged with
the cam shaft and rotary actuator is disengaged with the rotor when the key is pushed
and rotated towards ON position.
In another embodiment of the present disclosure, the electrical contact gets
disengaged with the cam shaft on push operation of the lock.
5
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
of the drawings. 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 disclosure. In the accompanying drawings,
Figure 1 illustrates an exploded view of the ignition lock with improved functionality
according to an embodiment of the present disclosure.
Figures 2a-2b show a sectional view of the ignition lock with improved functionality
according to an embodiment of the present disclosure wherein the cam arm is
disengaged and engaged respectively with the linear actuator after push operation.
Figures 3a-3b illustrate a sectional view from bottom of the ignition lock with
improved functionality according to an embodiment of the present disclosure wherein
the rotary actuator is operationally engaged with the rotor.
Figures 4a-4b illustrate a sectional view from bottom of the ignition lock with
improved functionality according to an embodiment of the present disclosure wherein
the linear actuator is operationally engaged with the cam arm.
Figure 5 illustrates an isometric view of the cam shaft of the ignition lock with
improved functionality according to an embodiment of the present disclosure.
Figure 6 illustrates an isometric view of the rotor of the ignition lock with improved
functionality according to an embodiment of the present disclosure.
Figure 7 illustrates a sectional view of the ignition lock shows the engagement of the
sliding plate with the lock bar according to an embodiment of the present disclosure.
6
DETAILED DESCRIPTION OF DISCLOSURE
While the disclosure is susceptible to various modifications and alternative forms,
specific embodiment thereof has been shown by way of example in the figures
and will be described in detail below. It should be understood, however that it is not
intended to limit the disclosure to the particular forms disclosed, but on the contrary,
the disclosure is to cover all modifications, equivalents, and alternative falling within
the spirit and the scope of the disclosure.
Before describing in detail embodiments it may be observed that the novelty and
inventive step that are in accordance with the present disclosure resides in the
ignition lock with improved functionality. It is to be noted that a person skilled in
the art can be motivated from the present disclosure and modify the various
constructions of assembly, which are varying from vehicle to vehicle. However,
such modification should be construed within the scope and spirit of the disclosure.
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 a setup, 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 setup or device. In other words,
one or more elements in a system or apparatus proceeded by “comprises… a” does
not, without more constraints, preclude the existence of other elements or additional
elements in the system or apparatus.
Figure 1 illustrates an ignition lock (L) with improved functionality for vehicle
according to the present disclosure. Referring to Figure 1, the ignition lock (L) with
improved functionality for vehicle comprises a upper body (1) and a body switch (11)
forming a hollow internal space for accommodating various components such as a
rotor assembly (R), a torsion spring (4), a pair of actuators comprising a rotary
actuator (5) and a linear actuator (18), a rotor spring (6), a cover plate (7), a cam shaft
(8), a sliding plate (9), a locking bar (10), a cam spring (12), an electrical unit (13), an
7
electrical contact (13a), a lower body cap (14), a pair of brackets (15a, 15b), a base
assembly (16) and a compression spring (17).
Referring to Figure 2a-2b, the upper body (1) of ignition lock (L) comprises of a front
end (L1) and a rear end (L2) wherein the front end (L1) forms a preferably cylindrical
opening for arranging the rotor assembly (R). The upper body (1) and the body switch
(11) are coupled co-axially with each other. A key (2) is to be inserted in the rotor
assembly to operate the ignition lock by rotation of the key.
As shown in Figure 6, the rotor assembly (R) comprises of a rotor (3), a plurality of
tumblers (3c) and a shutter (S). The rotor (3) consists of a first end (3a) and a second
end (3b), wherein the first end (3a) is provided with a key insertion hole (19) and the
second end (3b) is provided with a cylindrical portion (20), extending parallel to the
axis of the rotor (3). The said cylindrical portion (20) is configured to form a cavity
(21) formed on the central portion of the second end (3b) of the rotor (3). The
cylindrical portion (20) is provided with a pair of projections (21a, 21b) on its outer
periphery formed in diagonally opposite manner, at the second end (3b).
Referring to Figures 3a-3b, the rotary actuator (5) is shown. The rotary actuator (5) is
configured to rotate on rotation of the rotor (3) in a prescribed direction and angle to
unlock a locking mechanism. The rotary actuator (5) is mounted in the upper body (1)
resiliently. The rotary actuator (5) is engaged with the torsion spring (4) to allow
automatic return of the rotary actuator (5) to its initial home position. The rotary
actuator (5) is secured in the upper body (1) by the cover plate (7).
As shown in Figures 3a-3b, the rotary actuator (5) comprises of a hollow cylinder (5c)
having an inner surface (5a) and an outer surface (5b). The inner surface (5a) of the
hollow cylinder (5c) comprises of a pair of protrusions (22a, 22b) protruding inwardly
in conformity with the projections (21a, 21b) of the rotor (3). These pair of
protrusions (22a, 22b) in the rotary actuator (5) is operationally engageable with the
projections (21a, 21b) of the rotor (3) and rotate the rotary actuator (5) in a prescribed
direction i.e. towards lock position without push operation. The outer surface (5b) of
the hollow cylinder (5c) of the actuator (5) has a circular flange (5d) that is having at
least one extended projection perpendicular to the plane of the rotation of the rotor
8
(3). This projected portion is connected to one or more cables. With push operation of
the key the rotary actuator (5) get disengaged with the rotor projections (21a, 21b),
thereby the rotary actuator does not rotate with push operation.
Referring to Figure 5, the cam shaft (8) of the ignition lock assembly is shown. The
cam shaft (8) comprises of a proximal end (8a), a distal end (8b) and a cam portion
(8c). The proximal end (8a) of the cam shaft (8) is connected to the cylindrical portion
(20) at the second end (3b) of the rotor (3). The proximal end (8a) of the cam shaft is
engaged in the cavity (21) formed on the cylindrical portion (20) of the rotor (3). The
cam shaft (8) is adapted to receive a cam spring (12) around its distal end (8b) and is
configured to receive a rotor spring (6) at its proximal end (8a). The rotor spring (6)
provided around the proximal end (8a) of the cam shaft (8) supports the resilient
movement of the rotor (3) and the cam shaft (8). One or more arm (8d) is provided on
the cam shaft (8) to operationally engage and move the linear actuator (18) in the
prescribed direction. The distal end (8b) of the cam shaft (8) is operationally
configured to engage and disengage with the electrical contact (13a). The linear
actuator (18) is configured to engage with the cam shaft arm (8d) with push operation
to unlock another locking mechanism (for example a fuel cap lock).
Referring to Figures 4a-4b, the movement of linear actuator (18) is shown. In Figure
4a, the linear actuator (18) is in home position i.e. the key is at OFF position. When
the key is pushed at OFF position, the cam arm (8d) engages with the actuator body
(18b) and allow the linear actuator (18) to move with the rotation of the cam (8)
towards ON position. As shown in Figure 4b, the linear actuator (18) is in working
condition i.e. in an actuation condition. The linear actuator (18) comprises a body
(18b) with an irregular curve, an arm (18a) and a cavity (18c). The arm (18a) is
engaged with the compression spring. The arm of the linear actuator (18) is energized
with the compression spring (17) which is accommodated in the body switch (11) of
the multi-function ignition lock (L). The compression spring (17) energizes the
movement of the linear actuator (18) in linear direction only. The cavity (18c) is
engaged with the cable. As the cam rotates, it pushes the irregular curve of the linear
actuator (18) due to which the movement of the linear actuator (18) takes place by the
cam arm (8d). Due to the spring force the cam shaft (8) auto returns to the OFF
position with the removal of the rotation torque.
9
As shown in Figure 7, the sliding plate (9) is movably placed in the upper body (1) of
the ignition lock (L). The sliding plate (9) comprises of a pair of slots namely a
locking slot (23) and an elliptical slot (24). The sliding plate is configured to engage
with the cam shaft (8) to lock/unlock a steering lock through a locking bar (10). The
locking bar (10) has a cylindrical body which consists of a front end (10a) and a rear
end (10b) wherein the front end (10a) has a locking portion. The said locking bar (10)
is movably inserted in a hole (1a) formed in the upper body (1) of the ignition lock
(L). The rear end (10b) of the locking bar (10) resides in the body (1) and secured to
the locking slot (23) formed in the sliding plate (9).
The said elliptical slot (24) may be formed to slightly larger in size than the cam
portion (8c), to allow the insertion of the cam portion (8c) in the elliptical slot (24).
Such a situation occurs when the rotor (3) is pushed in downward direction at
predetermined position i.e. OFF position of the ignition lock (L). The term
“downward direction” herein refers to a direction parallel to the axis of the rotor (3).
The cam portion (8c) of the cam shaft (8) is connected to the elliptical slot (24) of the
sliding plate (9) with push operation and allow to move the sliding plate with the
rotation of the cam. The electrical module (13) is engaged with the cam shaft (8) at
the distal end (8b) and electrical contact (13a) and rotates with the rotation of the cam
shaft (8) to ON position and OFF position. The electrical contact (13a) gets
disengaged with the distal end (8b) of the cam shaft (8) with push operation of the
lock.
As the rotation of the cam shaft (8) with push takes place, the sliding plate (9) is
attached in such a way to the cam shaft (8) that it moves linearly by the cam portion
(8c). The sliding plate (9) in turn pushes or pulls the locking bar (10) which is adapted
to lock or unlock the steering mechanism. The sliding plate (9) is positioned on the
cam shaft (8) and is operationally engageable with the cam portion (8c) when the
rotor (3) is pushed in axial direction using the key (2).
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WORKING
LOCKING AND UNLOCKING OF STEERING
At LOCK position, when the key (2) is pushed, rotor (3) disengages with the rotary
actuator (5) and the cam shaft (8) engages with the sliding plate (9) through the
elliptical slot (24). As the key (2) is rotated from LOCK position to OFF position with
push operation, the cam portion (8c) of the cam shaft (8) pushes the slot (24) which in
turn pushes the sliding plate (9). The sliding plate (9) in turn pushes the locking bar
(10) to protrude inside, thereby unlocking the steering.
Locking of the steering can be done in the same way, by rotating the cam shaft (8)
from OFF position to LOCK position with key in pushed condition.
IGNITION ON AND IGNITION OFF
When the key (2) is inserted at LOCK position and rotated towards OFF position with
push, the steering gets unlocked. After which, it is rotated towards ON position which
rotates the electrical unit to connect with the circuit and allow the user to start the
ignition process.
With pushing the key at OFF position the electrical unit (13) gets disengaged with the
cam (8) as the distal end of the cam (8b) falls down to cut-out the electrical contact
(13a) shown in Figure 2a-2b and Figure 5. Hence during operation with push the
electrical unit (13) does not rotate with the rotation of the cam shaft (8).
SEAT LOCK WORKING
The cam shaft and the actuator provide a suitable engagement mechanism as when the
key (2) is rotated from OFF to ON position, the same do not engage thereby working
as conventional switches.
As shown in Figures 3a-3b Upon rotating the key (2) from OFF position to LOCK
position without pushing the key (2), the rotor (3) engages its projections (21a, 21b)
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with the protrusion (22a, 22b) of the rotary actuator (5), thereby rotating the actuator
(5). Due to rotation of the rotary actuator (5), the actuator cable stretches, making the
latch (fixed at seat lock position) to open. This actuator (5) in energized by the torsion
spring (4). As the key (2) is released, energized torsion spring (4) pushes the rotary
actuator (5) to de-energise back to its initial home position.
FUEL TANK COVER WORKING
As shown in Figures 4a-4b, for opening of fuel tank cover lock, the key is to be
pushed at ignition OFF position. As the key (2) is pushed, the rotor (3) disengages
with the rotary actuator (5) and the cam portion (8c) of cam shaft (8) engages with
sliding plate (9) and the arm (8d) falls in the line of the linear actuator (18). As we
subsequently rotate the key from OFF position to fuel tank unlock position with push,
the cam arm (8d) of the cam (8) pushes the linear actuator (18) at the arm (18d)
against the force of the compression spring (17) which in turn opens the fuel tank
cover.
For closing of fuel tank cover, as the key operating torque is released, the energized
spring (17) pushes the linear actuator (18) back to its initial position and moves the
cam shaft (8) to OFF position which in turn returns the key to OFF position.
The operation of the combined lock mechanism is also summarized as below:
LOCK POSITION OFF POSITION ON POSITION
For opening steering lock: LOCK POSTION OFF POSITION (clockwise
rotation with push)
For ignition on: OFF POSTION ON POSITION (clockwise rotation without
push)
For opening seat lock: OFF POSITION SEAT LOCK POSITION (counterclockwise
rotation without push)
For opening fuel tank: OFF POSITION FUEL TANK UNLOCK
POSITION (clock wise rotation with push)
PUSH
PUSH
W/0PUSH
W/0PUSH
PUSH
PUSH
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Further, various modifications and variations may be made without departing from the
scope of the present invention. Therefore, it is intended that the present disclosure
covers such modifications and variations provided they come within the ambit of the
appended claims and their equivalents.
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
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
13
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.
14
LIST OF REFERENCE NUMERALS
Ignition lock (L)
Upper body (1)
Front end of upper body (L1)
Rear end of upper body (L2)
Rotor Assembly (R)
Key (2)
Rotor (3)
First end of rotor (3a)
Second end of rotor (3b)
Plurality of tumblers (3c)
Shutter (S)
Torsion spring (4)
Rotary actuator (5)
Hollow cylinder of rotary actuator (5c)
Rotor spring (6)
Cover plate (7)
Cam shaft (8)
Proximal end of cam shaft (8a)
Distal end of cam shaft (8b)
Cam portion (8c)
Cam arm (8d)
Sliding plate (9)
Locking bar (10)
Body switch (11)
Cam spring (12)
Electric unit (13)
Electrical contact (13a)
Lower body cap (14)
Pair of brackets (15a, 15b)
Base assembly (16)
Compression spring (17)
Linear actuator (18)
15
Arm of linear actuator (18a)
Body of linear actuator (18b)
Cavity of linear actuator (18c)
Key insertion hole in rotor (19)
Cylindrical projection (20)
Cavity in cylindrical projection (21)
Projections of rotor (21a, 21b)
Protrusions of rotary actuator (22a, 22b)
Locking slot (23)
Elliptical slot (24)

We Claim:
1. A multi-function ignition lock (L) comprising:
an upper body (1) being coupled co-axially with a body switch (11) and
having a hollow internal space; wherein the hollow space accommodates
a rotor assembly (R) comprising a rotor (3) mounted rotatably in the
upper body (1);
a cam shaft (8) coupled to the rotor assembly (R), the cam shaft (8)
configured to rotate on rotation of the rotor (3);
a sliding plate (9) configured to engage with the cam shaft (8) to
lock/unlock a steering lock through a locking bar (10);
a rotary actuator (5) configured to rotate on rotation of the rotor (3) in a
prescribed direction and angle, the rotary actuator (5) configured to
unlock a locking mechanism (e.g. seat lock); the said rotary actuator
auto returns to home position due to an energizing mean after
unlocking the locking mechanism;
a linear actuator (18) configured to engage with the cam shaft (8) to
unlock another locking mechanism (e.g. fuel tank cover lock), the cam
shaft (8) configured to impart a linear motion on movement of the
linear actuator (18); the said linear actuator auto returns to home
position due to an energizing mean after unlocking the another locking
mechanism;
at least one actuating cable is connected to the rotary actuator (5) and linear
actuator (18) respectively.
2. The multi-function ignition lock (L) as claimed in claim 1, wherein the rotor (3)
comprises a first end (3a) and a second end (3b) and a cylindrical portion (20)
extending there between.
3. The multi-function ignition lock (L) as claimed in claim 1, wherein the rotor (3)
comprises a plurality of projections (21a, 21b) on the cylindrical portion (20).
17
4. The multi-function ignition lock (L) as claimed in claim 1, wherein the cam shaft
(8) comprises a proximal end (8a) and a distal end (8b) and the proximal end (8a) of
the cam shaft (8) is engaged in a cavity (20) formed on the second end (3b) of the
rotor (3).
5. The multi-function ignition lock (L) as claimed in claim 4, wherein the cam shaft
(8) is configured with a rotor spring (6) at the proximal end (8a) and a cam spring (12)
at the distal end (8b).
6. The multi-function ignition lock (L) as claimed in claim 1, wherein the cam shaft
(8) is provided with a cam arm (8d) and a cam portion (8c).
7. The multi-function ignition lock (L) as claimed in claim 1, wherein the sliding plate
(9) comprises an elliptical slot (24) to allow insertion of cam portion (8c) and provide
the linear motion of the sliding plate.
8. The multi-function ignition lock (L) as claimed in claim 1, wherein the rotary
actuator (5) comprises a hollow cylindrical body with a plurality of protrusions
protruding inwardly and operationally engaged with the rotor.
9. The multi-function ignition lock (L) as claimed in claim 8, wherein the rotary
actuator (5) is engaged with a torsion spring to allow auto-return of the actuator.
10. The multi-function ignition lock (L) as claimed in claim 1, wherein the rotary
actuator (5) comprises a circular flange having at least one extended projection
perpendicular to the plane of the rotation of the rotor (3).
11. The multi-function ignition lock (L) as claimed in claim 1, wherein the linear
actuator (18) is energized with a compression spring (17) located in the body switch
(11).
12. The multi-function ignition lock (L) as claimed in claim 1, wherein the linear
actuator (18) is engaged with the cam shaft (8) and rotary actuator (5) is disengaged
with the rotor (3) when the key (2) is pushed and rotated towards ON position.
13. The multi-function ignition lock (L) as claimed in claim 1, wherein the electrical
contact (13a) gets disengaged with the cam shaft (8) on push operation of the lock.