BRAKE DISK LOCK

Abstract

A brake disk lock includes a claw comprising a first claw section and a second claw section movable relative to each other between an open position and a closed position of the claw, wherein, in the closed position, the claw comprises a predetermined clearing width so as to engage around a section of a brake disk of a two-wheeled vehicle. Further, the brake disk lock comprises a locking mechanism which is configured to lock the claw in the closed position, and an adjustment device configured to adjust the predetermined clearing width of the claw to different brake disks.

Claims

1. A brake disk lock, comprising: a claw including a first claw section and a second claw section which are movable relative to each other between an open position and a closed position of the claw, wherein the claw in the closed position comprises a predetermined clearing width to engage around a section of a brake disk of a two-wheeled vehicle; a locking mechanism which is configured to lock the claw in the closed position; and an adjustment device configured to adjust the predetermined clearing width of the claw to different brake disks.

2. The brake disk lock according to claim 1, wherein the locking mechanism is fixedly connected to the first claw section, and wherein the second claw section is movable relative to the first claw section and to the locking mechanism.

3. The brake disk lock according to claim 1, wherein the brake disk lock comprises a lock body in which the locking mechanism is held and at which the second claw section is movably supported.

4. The brake disk lock according to claim 1, wherein the first claw section and the second claw section are linearly movable relative to each other between the open position and the closed position.

5. The brake disk lock according to claim 1, wherein at least one of the claw sections comprises a hook structure which is configured to engage around the section of the brake disk, and which occupies an effective distance from the locking mechanism when the claw is closed and locked, and wherein the adjustment device is configured to adjust the effective distance of the hook structure to the locking mechanism.

6. The brake disk lock according to claim 1, wherein, in a state of use of the brake disk lock, the first claw section is mounted in an adjustable fixed mounting position relative to the locking mechanism, and wherein the adjustment device is configured to adjust the mounting position of the first claw section relative to the locking mechanism.

7. The brake disk lock according to claim 6, wherein the brake disk lock comprises a holder which supports the locking mechanism, and wherein the first claw section is mounted at the holder.

8. The brake disk lock according to claim 6, wherein the adjustment device comprises an engagement contour associated with the locking mechanism and an engagement counter-contour associated with the first claw section, and wherein the engagement contour and the engagement counter-contour can be brought into engagement with each other in different mounting positions and can be secured to each other in the respective mounting position.

9. The brake disk lock according to claim 6, wherein the first claw section is configured as rigid and/or comprises a fixed length.

10. The brake disk lock according to claim 5, wherein the at least one claw section comprises a locking structure with which the locking mechanism engages when the claw is closed and locked, and wherein the adjustment device is configured to adjust an effective length between the hook structure and the locking structure of the at least one claw section.

11. The brake disk lock according to claim 5, wherein the brake disk lock comprises a holder which supports the locking mechanism, wherein the at least one claw section comprises a connecting end at which the at least one claw section is connected to the holder in an unchanging position, and wherein the adjustment device is configured to adjust an effective length between the hook structure and the connecting end of the at least one claw section.

12. The brake disk lock according to claim 10, wherein the adjustment device comprises a threaded rod and an internal thread displaceable along the threaded rod, by means of which the effective length of the at least one claw section is adjustable.

13. The brake disk lock according to claim 1, wherein the adjustment device can be only be actuated as a result of an unlocking of the locking mechanism, in order to adjust the predetermined clearing width of the claw to different brake disks.

14. The brake disk lock according to claim 1, wherein the adjustment device comprises a securing element which is configured to secure an adjustment of the predetermined clearing width of the claw, and wherein the securing element is at least one of: covered by the brake disk or by a part of the brake disk lock; or blocked against movement, when the brake disk lock is mounted at the brake disk and when the claw is closed and locked.

15. The brake disk lock according to claim 1, wherein the claw is biased towards the open position.

16. The brake disk lock according to claim 1, wherein the locking mechanism comprises a latch that in a locking position, when the claw is closed, locks the second claw section to the first claw section and, in a release position, releases the second claw section for movement relative to the first claw section.

17. The brake disk lock according to claim 16, wherein the latch is biased towards the locking position, and wherein the latch is configured to be first urged back towards the release position due to movement of the claw from the open position to the closed position, and then to snap into the locking position due to the bias.

18. The brake disk lock according to claim 16, wherein the latch is rotatably mounted and comprises a peripheral surface with a tangential recess, and wherein the tangential recess releases a locking protrusion of the second claw section in the release position of the latch.

19. The brake disk lock according to claim 1, wherein at least one of the claw sections is configured to engage in an opening of the brake disk and thereby hold the brake disk lock suspended at the brake disk.

20. The brake disk lock according to claim 1, wherein the brake disk lock comprises an alarm device for outputting an alarm signal, and wherein the alarm device is configured to be activated by moving the claw to the closed position and to be deactivated by moving the claw from the closed position to the open position.

21. The brake disk lock according to claim 20, wherein the alarm device comprises an activation switch which is configured to be automatically actuated in the closed position by the second claw section or by a part of the brake disk lock connected to the second claw section.

22. A brake disk lock according to claim 20, wherein the alarm device is arranged in a housing section of the brake disk lock which is fixedly connected to the first claw section, wherein the alarm device is only accessible as a result of an unlocking of the locking mechanism.

23. The brake disk lock according to claim 1, wherein the brake disk lock comprises a first securing section associated with the first claw section and a second securing section associated with the second claw section, wherein, in the open position of the claw, the first securing section and the second securing section form a receiving opening for the insertion of an eyelet of a flexible securing member, and wherein, in the closed position of the claw, the first securing section and the second securing section form a circumferentially closed boundary of the receiving opening for securing the inserted eyelet at the brake disk lock.

Description

DRAWINGS

[0042] The invention is explained below by way of example only, with reference to the drawings.

[0043] FIG. 1A shows a perspective view of a brake disk lock in a closed position.

[0044] FIG. 1B shows a perspective view of the brake disk lock in the closed position without a lock body.

[0045] FIG. 10 shows parts of a brake disk lock in a perspective sectional view.

[0046] FIG. 2A shows a sectional view of parts of a brake disk lock in a top view of the brake disk lock in the closed position.

[0047] FIG. 2B shows a sectional view corresponding to FIG. 2A in an open position.

[0048] FIG. 3 shows a perspective view of parts of an alternative embodiment of a brake disk lock with a threaded rod.

DESCRIPTION

[0049] FIG. 1A shows a perspective view of the rear side of a brake disk lock 100 in a closed position. The brake disk lock 100 comprises a lock body 114 and a claw 102 having a first claw section 104 and a second claw section 106. As will be further explained below, in a state of use of the brake disk lock 100, the first claw section 104 is immovably held at the lock body 114, and the second claw section 106 is movably guided at the lock body 114 and is lockable in the closed position of the claw 102. The first claw section 104 and the second claw section 106 form a respective hook structure 105 and 107 at their free ends. The lock body 114 may be formed by a metal casting (e.g., zinc die-casting). The first claw section 104 and the second claw section 106 may be formed by stamped and bent metal parts.

[0050] The brake disk lock 100 includes a first securing section 120 associated with the first claw section 104 and formed by a part of the lock body 114, and a second securing section 122 formed by a part of the second claw section 106. In the open position of the claw 102, the first securing section 120 and the second securing section 122 form a receiving opening 123 for the insertion of an eyelet of a flexible securing member 124. In the closed position of the claw 102, the first securing section 120 and the second securing section 122 form a circumferentially closed boundary of the receiving opening 123 to secure the inserted eyelet at the brake disk lock 100.

[0051] FIG. 1B shows a perspective view of the brake disk lock 100 in the closed position of the claw 102 without the lock body 114. The brake disk lock 100 includes a locking mechanism 108 comprising a locking cylinder 126 within a two-part cylinder housing 125 and configured to lock the claw 102 in the closed position. For this purpose, the locking mechanism 108 comprises a rotational latch 202, as will be explained further in connection with FIGS. 2A and 2B. The locking mechanism 108 is arranged within the lock body 114, which in this respect serves as a holder for holding the locking mechanism 108 as well as the first claw section 104 and for supporting the movable second claw section 106.

[0052] The brake disk lock 100 further includes an alarm device 110 arranged in a housing section 132 (FIG. 10) of the brake disk lock 100. The alarm device 110 comprises a housing 134, an activation switch 112, a motion sensor (not shown), a control circuit (not shown), and an acoustic signal generator 113 (FIG. 1B).

[0053] Further, a cover 118 is configured to cover the open rear side of the lock body 114 and thus the locking mechanism 108 and the alarm device 110. In FIG. 10, the cover 118 is shown removed from its original position.

[0054] In an open position of the claw 102, the brake disk lock 100 may be mounted to a brake disk of a two-wheeled vehicle (not shown) by inserting the hook structure 105 of the first claw section 104 in an opening of the brake disk so as to engage around a section of the brake disk. For this purpose, the brake disk lock 100 is arranged in a plane parallel to the plane of extent of the brake disk, so that when releasing the brake disk lock 100, the brake disk is supported at a first supporting point 116 of the first claw section 104 and at a second supporting point 130 of the lock body 114. By moving the claw 102 from the open position to the closed position shown in FIGS. 1A and 1B, the brake disk lock 100 is locked and secured at the brake disk. This is done by moving the second claw section 106 of the claw 102 in the direction of the first claw section 104 and the lock body 114, as will be explained in more detail below.

[0055] FIG. 2A and FIG. 2B show a sectional view of parts of the brake disk lock 100 (excluding the lock body 114) in a top view in the closed position and in the open position, respectively. The claw sections 104, 106 are movable relative to each other between an open position and a closed position of the claw 102. In the closed position shown in FIG. 2A, the claw 102 has a predetermined clearing width for engaging around a section of a brake disk of a two-wheeled vehicle. The clearing width of the claw 102 denotes the internal dimension of the claw 102 in its closed position, in particular the distance between the first supporting point 116 of the first claw section 104 on the one hand and the second supporting point 130 of the lock body 114 and a third supporting point 212 of the second claw section 106 on the other hand. In this example embodiment, in the closed position of the claw 102, the second supporting point 130 of the lock body 114 (FIG. 1A) and the third supporting point 212 of the second claw section 106 (FIG. 2A) are arranged at approximately the same height. However, in connection with the invention, the clearing width of the claw 102 may also generally refer to the inner dimension or the distance between the ends of the two claw sections 104, 106.

[0056] In a state of use of the brake disk lock 100, the first claw section 104 of the claw 102 is mounted in an adjustable fixed mounting position relative to the lock body 114 and thus relative to the locking mechanism 108 and the aforementioned rotational latch 202. An adjustment device 217 of the brake disk lock 100 is configured to be able to adjust the mounting position of the first claw section 104 relative to the locking mechanism 108 for different brake disks. The adjustment device 217 may be configured to have an engagement contour associated with the lock body 114 or the locking mechanism 108 in the form of serrations 218 and an engagement counter-contour associated with the first claw section 104 in the form of counter-serrations 220. The serrations 218 and the counter-serrations 220 may be brought into engagement with each other in various mounting positions and secured to each other. The serrations 218 associated with the locking mechanism 108 may be mounted at the side of the lock body 114 facing the first claw section 104. The counter-serrations 220 associated with the first claw section 104 may be mounted at the side of the first claw section 104 facing the lock body 114. The serrations 218 and the counter-serrations 220 may be secured to each other by a securing element, configured here for example as two securing screws 214, in order to fix the mounting position of the first claw section 104.

[0057] The adjustment device 217 is thus configured to adjust the predetermined clearing width of the claw 102 to different brake disks. For this purpose, the securing screws 214 may be loosened in the open position of the claw 102 (FIG. 2B) so that the mutual engagement of the serrations 218 and the counter-serrations 220 may be released. The clearing width of the claw 102 may be adjusted by moving the first claw section 104 to a desired position. Once the desired position is reached, the serrations 218 and the counter-serrations 220 may be brought into engagement again and secured to each other by means of the securing screws 214.

[0058] In FIG. 10, the two securing screws 214 are shown disengaged from their original position. To secure the serrations 218 and the counter-serrations 220, the securing screws 214 are each inserted into a threaded hole 136 of the lock body 114 once the serrations 218 and the counter-serrations 220 are engaged in the desired mounting position of the first claw section 104. By rotating the securing screws 214 clockwise, the first claw section 104 and thus the counter-serrations 220 are pressed against the serrations 218 and secured against each other.

[0059] The thus adjusted mounting position of the first claw section 104 is a position that the first claw section 104 occupies for the subsequent use of the brake disk lock 100 for the repeated locking to and releasing from the brake disk in question relative to the lock body 114 and thus relative to the locking mechanism 108, and maintains during use, in particular, also during movement of the claw 102 between the open position and the closed position.

[0060] In the following, the operation of the locking mechanism 108 will be explained in more detail. The rotational latch 202, which is operable by means of the locking cylinder 126, is configured to lock the claw 102 in the closed position (FIG. 2A). The rotational latch 202 is biased in the direction of its locking position, for example by a torsion spring (not shown). In the representation according to FIGS. 2A and 2B, the bias is oriented counter-clockwise. The rotational latch 202 is rotatably mounted at a peripheral surface 222 of the locking cylinder 126, wherein the axis of rotation of the rotational latch 202 and the axis of rotation of the locking cylinder 126 coincide. The rotational latch 202 comprises a tangential recess 208 at an outer cylindrical peripheral surface 222.

[0061] By moving the claw 102, in particular the second claw section 106, from the open position to the closed position, the biased rotational latch 202 is temporarily urged back towards a release position by a locking structure in the form of a locking protrusion 204 of the second claw section 106. For this purpose, the locking protrusion 204 engages a boundary of the tangential recess 208 of the rotational latch 202. Once the locking protrusion 204 has urged the rotational latch 202 back towards the release position to such an extent that the tangential recess 208 runs approximately parallel to the direction of movement of the locking protrusion 204, further displacement of the locking protrusion 204 towards the release position releases the contact between the locking protrusion 204 and the boundary of the tangential recess 208 and the rotational latch 202 can snap back into the locking position due to its bias. The claw 102, in particular the second claw section 106, is thus locked in the closed position, since the locking protrusion 204 is now prevented by the rotational latch 202 from retracting towards the open position. Only by unlocking the locking mechanism 108 by operation of the locking cylinder 126 with an associated key, i.e. moving the rotational latch 202 from the locked position to the release position, is the path of movement of the locking protrusion 204 towards the open position of the claw 102 released, in that the tangential recess 208 is oriented in the release position of the rotational latch 202 with an axis parallel to the direction of movement of the locking protrusion 204.

[0062] The brake disk lock 100 comprises a return spring 206 in the form of a coil spring mounted between the second claw section 106 and the cover 118. When the brake disk lock 100 or claw 102 is closed, the return spring 206 becomes biased when moving the second claw section 106 towards the first claw section 104. When the brake disk lock 100 is unlocked by actuation of the locking cylinder 126 by means of the associated key, the second claw section 106 is urged by the return spring 206 from the closed position to the open position of the claw 102.

[0063] The alarm device 110 of the brake disk lock 100 may be activated when moving the claw 102 from the open position to the closed position and deactivated when moving the claw 102 from the closed position to the open position. For this purpose, an activation protrusion 216 of the second claw section 106 may actuate the activation switch 112 of the alarm device 110 which is configured as a contact switch, as soon as the claw 102 is brought from the open position to the closed position. The activation protrusion 216 may actuate the activation switch 112 directly or indirectly. In the case of indirect actuation, as is provided in the embodiment shown, the activation protrusion 216 may press a movable housing 134 of the alarm device 110 against the lock body 114 and thereby actuate the activation switch 112 of the alarm device 110. As long as the claw 102 is in the closed position, the alarm device 110 is activated.

[0064] As described, by unlocking the brake disk lock 100, the second claw section 106 is urged back to the open position of the claw 102 by the return spring 206. As a result, the activation switch 112 of the alarm device 110 is deactivated. This may take place either, in the case of direct actuation, by releasing the activation protrusion 216 from the activation switch 112, or, in the case of indirect actuation as shown, by urging back the second claw section 106 and thus the activation protrusion 216 to the open position of the claw 102, the housing 134 of the alarm device 110 may yield back again to its original position. As a result, the housing 134 of the alarm device 110 is not pressed further against the lock body 114 and the activation switch 112 is deactivated. The resetting of the housing 134 of the alarm device 110 may take place due to a restoring force, which arises, for example, by the compression of a silicone layer between the housing 134 of the alarm device 110 and the lock body 114 based on the contact pressure force from the activation protrusion 216.

[0065] FIG. 3 shows a perspective view of an alternative embodiment of a brake disk lock 100 having a first claw section 304 and a second claw section 306 of a claw 302; further having a locking mechanism 308 and an alarm device 310. The first claw section 304 comprises a hook structure 305 and is fixedly connected to the locking mechanism 308. The second claw section 306 comprises a hook structure 307 at the one end and a threaded rod 312 with a locking structure 309 at the other end, which forms a block-like thickening. The locking structure 309 of the second claw section 306 may be locked by the locking mechanism 308 when the claw 302 is in the closed position shown, similar to what is explained in connection with FIGS. 2A and 2B. An adjustment device 317 comprises the threaded rod 312 and an internal thread 313 of the hook structure 307 of the second claw section 306, which is displaceable along the threaded rod 312. The adjustment device 317 allows the effective length of the second claw section 306 to be adapted to the dimensions of different brake disks. The position of the hook structure 307 at the threaded rod 312, and thus the effective length of the second claw section 306, may be secured by means of a securing element 314, configured here as a nut. For this purpose, the securing element 314 is secured by a form-fit against rotation in the closed position of the brake disk lock 100, in that the securing element 314 is received in a form-fitting manner in the lock body (not shown in FIG. 3). In the open position of the brake disk lock 100, the form-fit of the securing element 314 is released, and the effective length of the second claw section 306 may be adjusted by rotating the threaded rod 312 in small increments (depending on the pitch of the thread).