FIELD OF DISCLOSURE
The present disclosure relates in general to a field of automobiles. Particularly, but not exclusively, the present disclosure relates to a cylinder lock device for two-wheeler and three-wheeler vehicles. More specifically, the present disclosure relates to a push button cylinder lock protective device.
BACKGROUND OF THE DISCLOSURE
In the present state of affairs, vehicle safety and security is one of the primary objectives of the manufacturers in the domain. To avoid any tampering of the vehicle by foreign elements, vehicles are provided with security systems. These security systems generally in the form of different types of locks which are installed in the vehicles. The locks may be electronically, pneumatically, mechanically or manually operable.
Generally, most of the vehicles are provided with cylinder locks which work mechanically. Such cylinder locks are being opened by insertion of key in the provided key hole (i.e. ignition lock). For example, ignition lock of a vehicle is provided with a shutter to prevent from unauthorized access to lock. In case of two or three wheelers vehicles and open roof four-wheeler vehicles, when key is removed from the lock, the lock is open to environment which may cause many problems such as miscreants/thieves may insert any sharp metallic object to unlock the cylinder lock. Further as the lock is completely open to environment, therefore, dirt, water or other foreign particles etc. may damage the lock or may jam the said lock. Eventually, such conditions cause the reduction in the life of lock.
However, to overcome these shortcomings, various solutions have been provided such as to cover the cylinder lock with the help of a shutter. There are solutions which provide shutter to protect the cylinder lock with a mechanism, however, having many parts in such mechanism results a complex assembling of such part.
Therefore, to overcome the above problems, a cylinder lock device is disclosed which addresses one or more problems associated with the existing locks.

SUMMARY OF THE DISCLOSURE
One or more shortcomings of conventional cylinder lock assemblies are overcome, and additional advantages are provided through the provision of a cylinder lock for a vehicle as defined in the present disclosure.
Additional features and advantages are realized through the techniques of the present disclosure. Other embodiments and aspects of the disclosure are described in detail herein and are considered a part of the present disclosure.
In one non-limiting embodiment of the present disclosure, a cylinder lock device for a vehicle is disclosed. The cylinder lock comprises a housing which is adapted to form a base for a shutter. The shutter comprises a plurality of gear teeth on its periphery. A transmission means comprises an extension arm, plurality of teeth on its periphery and a magnetic key insertion slot. The transmission means is configured to move between an open position and a closed position thereby opening or closing a key hole. A first energizing means is adapted to reside below the shutter. A push button comprises a top part and a protrusion part configured to lock the transmission means in the open position wherein the teeth of transmission means are adapted to mesh with the teeth of the shutter when a key is inserted in the key insertion slot.
In an embodiment, the first energizing means gets energized in an open position of the cylinder lock device.
In an embodiment, the first energizing means tends to move the shutter towards a closed position from the open position of the cylinder lock device.
In an embodiment, the push button allows the transmission means to return to closed position when the push button is pressed by a user.
In an embodiment, a cylinder cavity is formed in the push button.
In an embodiment, the key insertion slot comprises a magnetic base which get actuated as per the orientation of the magnets located in the key of the vehicle.
In an embodiment, the shutter comprises a cavity and the gear teeth are located on the periphery of the cavity.

In an embodiment, the first energizing means is adapted to be received between the housing and a cavity of the shutter.
In an embodiment, a second energizing means is adapted to be received below the
cylinder cavity.
In an embodiment, the extension arm of the transmission means is configured to move the protrusion part of the push button.
BRIEF DESCRIPTION OF FIGURES
The novel features and characteristics of the disclosure are set forth in the description. The disclosure itself, however, as well as a preferred mode of use, further objectives and advantages thereof, will best be understood by reference to the following description of an illustrative embodiment when read in conjunction with the accompanying drawings. One or more embodiments are now described, by way of example only, with reference to the accompanying drawings wherein like reference numerals represent like elements and in which:
Figure 1 illustrates an exploded view of the cylinder lock device according to an
embodiment of the present disclosure.
Figure 2 illustrates an open position of the cylinder lock device according to an embodiment of the present disclosure.
Figure 3 illustrates a closed position of the cylinder lock device according to an embodiment of the present disclosure.
Figure 4a-4b illustrates the perspective views of push button of the cylinder lock device according to an embodiment of the present disclosure.
Figure 5 illustrates the perspective view of transmission means of the cylinder lock device according to an embodiment of the present disclosure.
Figure 6 illustrates the perspective view of shutter of the cylinder lock device according to an embodiment of the present disclosure.

Figure 7 illustrates exploded view of the cylinder lock device according to an alternate embodiment of the present disclosure.
Figure 8 illustrates an exploded view of cylinder lock device according to another alternate embodiment of the present disclosure.
The accompanying drawings depict embodiments of the disclosure for purposes of illustration only. One skilled in the art will readily recognize from the following description that alternative embodiments of the structures and methods illustrated herein may be employed without departing from the principles of the disclosure described herein.
DESCRIPTION OF PRESENT DISCLOSURE
While the invention 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 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 the scope of the invention as defined by the appended claims.
Before describing in detail embodiments, it may be observed that the novelty and inventive step that are in accordance with the present invention resides in cylinder lock device for vehicles. It is to be noted that a person skilled in the art can be motivated from the present invention 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 invention. Accordingly, the drawings are showing only those specific details that are pertinent to understanding the embodiments of the present invention 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.
The present disclosure provides a cylinder lock protection device. The cylinder lock protection device for a vehicle comprises a push button mechanism. The push button mechanism returns shutter to close position where the shutter closes the key hole from open position where shutter opens the key hole.
Reference will now be made to the exemplary embodiments of the disclosure, as illustrated in the accompanying drawings. Where ever possible same numerals will be used to refer to the same or like parts.
Referring to Figure 1, the exploded view of the cylinder lock protection device is shown. The cylinder lock protection device comprises the components such as a housing (1), a key hole (1A), a shutter (2), a transmission means (3), a first energizing means (4), a push button (5), a second energizing means (5C) and a cover (6). As shown in Figure 1, the housing (3) comprises of an extruded pin, a slot for pre-loaded torsion spring and a cavity to resiliently secure the transmission means (3) in the housing (3).
Figures 2 and 3 illustrate the open and closed position of the cylinder lock protection device respectively. The housing (1), cover (6) and shutter (2) move from a closing position as shown in Figure 2 to an open position as shown in Figure 3 over the key hole (1A). The first energizing means (4) which resides below the shutter (2) gets energized in the open position and tends to move the shutter towards the closing position from the open position. The push button (5) locks the transmission means (3) in open position and allows it to return to closed position when the push button (5) is pressed by the user.
Referring to Figures 4a-4b, the perspective views of the push button (5) of the cylinder lock protection device are shown. The push button (5) comprises a top part (5A) with a protrusion part (5B). A cylindrical cavity (5D) is formed in the push

button (5). A second energizing means (5C) is adapted to be received below the cylinder cavity (5D).
Referring to Figure 5, the perspective view of the transmission means (3) is shown. The transmission means (3) comprises an extension arm (3A) and plurality of gear teeth (3B) on its periphery. When an ignition key is inserted in the key hole (1A), the gear teeth (3B) of the transmission means mesh with the gear teeth of the shutter (2). The key insertion hole comprises a magnetic base which works as per the orientation of the magnets located in a key of the vehicle.
Referring to Figure 6, the perspective view of the shutter (2) is shown. The shutter comprises a cavity (2B) and gear teeth (2A) on the periphery of the cavity (2B).
As shown in Figure 7, an exploded view of an alternate embodiment of the cylinder lock protection device is illustrated. In this embodiment, a resilient means is adapted to be received below the shutter (2).
As shown in Figure 8, an exploded view of another alternate embodiment of the cylinder lock protection device is illustrated. In this embodiment, a resilient means is adapted to be received below the transmission means (3).
OPERATION
CLOSE TO OPEN POSITION
At lock position (i.e. position at which the steering is locked), the shutter is opened by rotating the transmission means (3) in clockwise direction through an ignition key. As the transmission means (3) is turned in clockwise direction, it rotates the shutter in opposite sense through the meshing of gear teeth (2A) on shutter (2) and gear teeth (3B) on transmission means (3).
The first energising means (4) mounted between housing (1) and cavity (2B) of shutter (2) biases the shutter (2) towards the closing condition. The transmission means (3) through the meshing of gear teeth (2A) on shutter (2) and gear teeth (3B) on transmission means (3) is also biased towards closing condition.
While rotation, the extension arm (3A) of transmission means (3) pushes the protrusion part (5B) of push button (5) down. As the rotation is completed, i.e. the

shutter (2) is in open position allowing access to the keyhole (1A); the extension arm (3 A) crosses the protrusion part (5B) of push button (5). The second energising means (5C) positioned between housing (1) and cylindrical cavity (5D) in push button (5) pushes the push button (5) up again, thereby locking the extension arm (3A) and hence moving the transmission means (3) in open position. With the locking of transmission means (3) in open condition, the shutter (2) is also locked in open condition through the meshing of gears teeth (2A) on shutter (2) and gear teeth (3B) on transmission means (3).
OPEN TO CLOSE POSITION
At open position, the user manually pushes the top part (5 A) of push button (5) down. As the protrusion part (5B) of push button (5) moves down, it releases the extension arm (3A), thereby allowing the transmission means (3) to move freely. As the transmission means (3) is now free to move, the first energising means (4) on the shutter (2) brings both the shutter (2) and the transmission means (3) back to closed position.
ADVANTAGES OF THE PRESENT DISCLOSURE
* The primary advantage of the cylinder lock device is it provides improved
operability to the user.
• Another advantage of the cylinder lock device is that it is a cost-effective
solution for manufacturing the components.
® Another advantage of cylinder lock device is that the switch assembly disclosed has minimum number of parts and reduces assembly time.
« Another advantage of the present cylinder lock device is that it provides improved reliability and rigid working components.
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:
The embodiments herein and the various features and advantageous details thereof are explained with reference to the non-limiting embodiments in the description. Descriptions of well-known components and processing techniques are omitted so as to not unnecessarily obscure the embodiments herein. The examples used herein are intended merely to facilitate an understanding of ways in which the embodiments herein may be practiced and to further enable those of skill in the art to practice the embodiments herein. Accordingly, the examples should not be construed as limiting the scope of the embodiments herein.
The foregoing description of the specific embodiments will so fully reveal the general nature of the embodiments herein that others can, by applying current knowledge, readily modify and/or adapt for various applications such specific embodiments without departing from the generic concept, and, therefore, such adaptations and modifications should and are intended to be comprehended within the meaning and range of equivalents of the disclosed embodiments. It is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation. Therefore, while the embodiments herein have been described in terms of preferred embodiments, those skilled in the art will recognize that the embodiments herein can be practiced with modification within the spirit and scope of the embodiments as described herein.
Throughout this specification, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element, integer or step, or group of elements, integers or steps, but not the exclusion of any other element, integer or step, or group of elements, integers or steps.
The use of the expression "at least" or "at least one" suggests the use of one or more elements or ingredients or quantities, as the use may be in the embodiment of the disclosure to achieve one or more of the desired objects or results.
Any discussion of documents, acts, materials, devices, articles and the like that has been included in this specification is solely for the purpose of providing a context for the disclosure. It is not to be taken as an admission that any or all of these matters

form a part of the prior art base or were common general knowledge in the field relevant to the disclosure as it existed anywhere before the priority date of this application.
The numerical values mentioned for the various physical parameters, dimensions or quantities are only approximations and it is envisaged that the values higher/lower than the numerical values assigned to the parameters, dimensions or quantities fall within the scope of the disclosure, unless there is a statement in the specification specific to the contrary.
While considerable emphasis has been placed herein on the particular features of this disclosure, it will be appreciated that various modifications can be made, and that many changes can be made in the preferred embodiments without departing from the principles of the disclosure. These and other modifications in the nature of the disclosure or the preferred embodiments will be apparent to those skilled in the art from the disclosure herein, whereby it is to be distinctly understood that the foregoing descriptive matter is to be interpreted merely as illustrative of the disclosure and not as a limitation.

LIST OF REFERENCE NUMERALS

Description Reference Number
Cylinder lock protection device 100
Housing 1
Key Hole 1A
Shutter 2
Gear Teeth on shutter 2A
Cavity 2B
Transmission means 3
Extension arm 3A
Gear Teeth n transmission means 3B
First energizing means 4
Push button 5
Top part of push button 5A
Protrusion part 5B
Second energizing means 5C
Cylindrical cavity 5D
Cover 6

We Claim;
1. A cylinder lock device (100) for a vehicle comprising a housing (1) adapted to form
a base for:
a shutter (2) comprising plurality of gear teeth on its periphery;
a transmission means (3) comprising an extension arm, plurality of teeth on its periphery and a magnetic key insertion slot; the transmission means configured to move between an open position and a closed position thereby opening or closing a key hole;
a first energizing (4) means adapted to reside below the shutter;
a push button (5) comprising a top part and a protrusion part configured to lock the transmission means in the open position;
wherein the teeth of transmission means (3) are adapted to mesh with the teeth of the shutter (2) when a key is inserted in the key insertion slot.
2. The cylinder lock device (100) as claimed in claim 1, wherein the first energizing means gets energized in an open position of the cylinder lock device.
3. The cylinder lock device (100) as claimed in claim 1, wherein the first energizing means tends to move the shutter towards a closed position from the open position of the cylinder lock device.
4. The cylinder lock device (100) as claimed in claim 3, wherein the push button allows the transmission means to return to closed position when the push button (5) is pressed by a user.

5. The cylinder lock device (100) as claimed in claim 1, wherein a cylinder cavity (5D) is formed in the push button (5).
6. The cylinder lock device (100) as claimed in claim 1, wherein the key insertion slot comprises a magnetic base which get actuated as per the orientation of the magnets located in the key of the vehicle.
7. The cylinder lock device (100) as claimed in claim 1, wherein the shutter comprises a cavity and the gear teeth are located on the periphery of the cavity.
8. The cylinder lock device (100) as claimed in claim 1, wherein the first energizing means is adapted to be received between the housing and a cavity (2B) of the shutter (2).
9. The cylinder lock device (100) as claimed in claim 5, wherein a second energizing means (5C) is adapted to be received below the cylinder cavity (5D).
10. The cylinder lock device (100) as claimed in claim 1, wherein the extension arm
(3 A) of the transmission means (3) is configured to move the protrusion part (5B) of
the push button (5).