GB2554728A - A roller chain locking mechanism - Google Patents
A roller chain locking mechanism Download PDFInfo
- Publication number
- GB2554728A GB2554728A GB1617010.2A GB201617010A GB2554728A GB 2554728 A GB2554728 A GB 2554728A GB 201617010 A GB201617010 A GB 201617010A GB 2554728 A GB2554728 A GB 2554728A
- Authority
- GB
- United Kingdom
- Prior art keywords
- roller chain
- locking mechanism
- casing
- chain locking
- sprocket
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B67/00—Padlocks; Details thereof
- E05B67/36—Padlocks with closing means other than shackles ; Removable locks, the lock body itself being the locking element; Padlocks consisting of two separable halves or cooperating with a stud
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62H—CYCLE STANDS; SUPPORTS OR HOLDERS FOR PARKING OR STORING CYCLES; APPLIANCES PREVENTING OR INDICATING UNAUTHORIZED USE OR THEFT OF CYCLES; LOCKS INTEGRAL WITH CYCLES; DEVICES FOR LEARNING TO RIDE CYCLES
- B62H5/00—Appliances preventing or indicating unauthorised use or theft of cycles; Locks integral with cycles
- B62H5/08—Appliances preventing or indicating unauthorised use or theft of cycles; Locks integral with cycles preventing the drive
- B62H5/12—Appliances preventing or indicating unauthorised use or theft of cycles; Locks integral with cycles preventing the drive acting on the chain wheel or the chain
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B71/00—Locks specially adapted for bicycles, other than padlocks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G13/00—Chains
- F16G13/02—Driving-chains
- F16G13/06—Driving-chains with links connected by parallel driving-pins with or without rollers so called open links
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
This invention relates to a roller chain locking mechanism comprising an upper 13 casing, a lower casing 15 and complementary releasable engagement members on the upper and lower casings to secure the casings in a locked configuration. In a locked configuration, the combined casings encapsulate at least one link of the bicycle chain and the complementary releasable engagement members maintain the roller chain locking mechanism in a fixed position along the length of the roller chain. The roller chain locking mechanism is configured so that it prevents movement of the roller chain about a sprocket. The lock may use pins engaging with a plurality of apertures to maintain the position on the chain. The housings may separate entirely or be attached by hinge to one another. The lock may be configured to derail the chain if cycled.
Description
(54) Title of the Invention: A roller chain locking mechanism Abstract Title: A roller chain locking mechanism (57) This invention relates to a roller chain locking mechanism comprising an upper 13 casing, a lower casing 15 and complementary releasable engagement members on the upper and lower casings to secure the casings in a locked configuration. In a locked configuration, the combined casings encapsulate at least one link of the bicycle chain and the complementary releasable engagement members maintain the roller chain locking mechanism in a fixed position along the length of the roller chain. The roller chain locking mechanism is configured so that it prevents movement of the roller chain about a sprocket. The lock may use pins engaging with a plurality of apertures to maintain the position on the chain. The housings may separate entirely or be attached by hinge to one another. The lock may be configured to derail the chain if cycled.
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- 1 “A roller chain locking mechanism”
Introduction
This invention relates to a roller chain locking mechanism. More specifically, the invention relates to a roller chain locking mechanism particularly suited, but not limited to, bicycles.
Bicycle locks such as cable locks, chain locks, folding locks and U-locks are the most common types of locks used to prevent the theft of a bicycle. Usually, a bicycle is locked to a solid object that the bicycle cannot be separated from such as a lamp post or a bicycle rack. The lock employed should secure the bicycle to the solid object in order of value, i.e. first the frame, then the back wheel and finally the front wheel. It is common practice for bicycle owners to use a more heavy-duty lock such as a chain lock or a Ulock for the frame and a lighter lock such as a cable lock for the wheels.
However, there are problems associated with the use of one or a combination of the aforementioned locks. Currently there are no reasonably priced locks on the market that are impenetrable to thieves. In the UK alone, more than 376,000 bicycles are stolen per annum, which equates to one bicycle being stolen every 90 seconds. Most bicycle locks are seen as a minor deterrent to thieves, rather than being a fail-safe security measure. It is common practice for a thief to break or cut through a lock or plurality of locks using a hacksaw, a hammer, a crowbar, wire-cutters, bolt-cutters or other device, rendering the lock(s) useless and freeing the bicycle from the solid object to which it was locked. Importantly, once the lock has been removed, the thief can now use the stolen bicycle to flee the scene of the crime.
Throughout this specification, the invention will be described in terms of a locking mechanism for use with a bicycle. However, it will be understood that the present invention is not so limited unless otherwise specified in the claims, it is envisaged that the roller chain locking mechanism according to the present invention may be used with other vehicles and devices that use a roller chain and sprocket combination such as, but not limited to, a motorcycle, a scooter, a snowmobile, a chainsaw, a drive mechanism for an awning and the like.
-2It is an object of the present invention to provide a roller chain locking mechanism that overcomes at least some of the problems with the prior art devices. It is a further object of the present invention to provide a roller chain locking mechanism that offers a useful choice to the consumer. In addition to the foregoing, it is a further still object of the present invention to provide a locking mechanism that will dissuade thieves from even attempting to tamper with the locking mechanism.
Statements of Invention
In one embodiment of the invention there is provided a roller chain locking mechanism comprising an upper casing, a lower casing and complementary releasable engagement members on the upper and lower casings to secure the upper and lower casings in a fixed relationship with respect to each other, and in which in a locked configuration, the upper and lower casings are fitted to at least one link of the roller chain and secured together thereby encapsulating the at least one link of the roller chain and the complementary releasable engagement members therebetween and holding the roller chain locking mechanism in a fixed position along the length of the roller chain, the roller chain locking mechanism being configured so that when in the locked configuration around the at least one link of the roller chain, the roller chain locking mechanism prevents revolution of the roller chain about a sprocket.
By having such a locking mechanism, the locking mechanism will be secured in position on the chain of the bicycle. If a thief attempts to cycle away on the bicycle, the presence of the roller chain locking mechanism will inhibit rotation of the roller chain beyond the sprocket of the bicycle, thereby rendering the bicycle inoperable. If the nefarious character should attempt to cut the roller chain locking mechanism, they will also have to cut the chain, thereby rendering the bicycle inoperable and diminishing its value.
In one embodiment of the invention there is provided a roller chain locking mechanism in which the complementary releasable engagement members comprise a locking pin intermediate the upper casing and the lower casing such that the locking pin is situated intermediate two adjacent links of the roller chain in the locked configuration. By having a locking pin intermediate the upper casing and the lower casing, the releasable
- 3engagement members are inaccessible as they are contained within the roller chain locking mechanism and cannot be tampered with in an attempt to release the roller chain locking mechanism. Furthermore, any attempt to break or cut through the locking pin would result in one or more links of the roller chain also being cut or broken, rendering the bicycle impossible to cycle.
In one embodiment of the invention there is provided a roller chain locking mechanism wherein the locking pin is mounted on one of the upper casing and the lower casing and in which there is provided a receiving aperture to receive the locking pin on the other of the upper casing and the lower casing. By having such a roller chain locking mechanism, the locking pin and the receiving aperture will promote a positive engagement between the two parts.
In one embodiment of the invention there is provided a roller chain locking mechanism wherein there is a plurality of locking pins and a plurality of corresponding receiving apertures to receive said locking pins.
In one embodiment of the invention there is provided a roller chain locking mechanism in which in an unlocked configuration, the upper casing and the lower casing are separate.
In one embodiment of the invention there is provided a roller chain locking mechanism wherein the upper casing and the lower casing are hingedly attached together. This is seen as an advantageous aspect of the invention as the two parts will effectively be akin to a clam-shell arrangement and this will prevent loss of one of the parts and will aid alignment and hence mounting of the device.
In one embodiment of the invention there is provided a roller chain locking mechanism wherein the upper casing and the lower casing are made of metal.
In one embodiment of the invention there is provided a roller chain locking mechanism wherein the complementary releasable engagement members are actuated by a lockand-key mechanism.
-4In one embodiment of the invention there is provided a roller chain locking mechanism wherein the complementary releasable engagement members are actuated by a combination lock mechanism.
In one embodiment of the invention there is provided a roller chain locking mechanism wherein the upper casing and the lower casing are hemi-cylindrical in shape.
In one embodiment of the invention there is provided a roller chain locking mechanism wherein the upper casing and the lower casing are semi-ellipsoidal in shape. This is seen as a particularly suitable shape for the upper and lower casing components as when joined together, the two casing components will form an ellipsoid. The ellipsoid will promote derailment of the chain from the sprocket without damaging the roller chain locking mechanism and will also protect the internal components of the roller chain locking mechanism.
In one embodiment of the invention there is provided a roller chain locking mechanism in which the roller chain locking mechanism is configured to prevent revolution of the roller chain about a sprocket by derailing the chain off the sprocket upon rotation of the sprocket. By derailing the chain, the bicycle will be useless as a getaway vehicle and the thief risks capture with the stolen goods if they are spotted wheeling the bicycle with the locking mechanism still in place.
In one embodiment of the invention there is provided a roller chain locking mechanism in which the roller chain locking mechanism is configured to prevent revolution of the roller chain about a sprocket by engaging one or more additional teeth of the sprocket upon rotation of the sprocket. As an alternative to derailing the chain, it is envisaged that the roller chain locking mechanism could engage the sprocket and prevent further rotation of the sprocket. This will also effectively render the bicycle useless as a getaway vehicle.
In another embodiment of the present invention, there is provided a bicycle lock according to any of the preceding claims.
- 5Detailed Description of the Invention
The invention will now be more clearly understood from the following description of some embodiments thereof given by way of example only with reference to the accompanying drawings, in which:Figure 1 is a diagrammatic representation of a segment of a roller chain;
Figure 2 is a plan view of the segment of a roller chain shown in Figure 1;
Figure 3 is a diagrammatic representation of a roller chain locking mechanism according to the invention in an unlocked configuration; and
Figure 4 is a diagrammatic representation of a roller chain locking mechanism according to the invention in a locked configuration.
Referring now to Figure 1 there is shown a segment of a roller chain, indicated generally by the reference numeral 1. The segment 1 of the roller chain comprises a plurality of outer plates 3 and an inner plate 5. The outer plates 3 are connected to the inner plates 5 by way of a pin 7. A bushing (not shown) is mounted about the pin 7 and a roller (not shown) is mounted about the bushing. It will be understood that a roller chain will be an endless loop of a plurality of links and in the embodiment shown, only three links are shown for convenience.
Referring to Figure 2, there is shown a plan view of the segment of a roller chain shown in Figure 1. There is provided a plurality of rollers 9, each of which is mounted about a corresponding bushing (not shown) between the inner plates 5. There are gaps 10 intermediate the links on the chain.
Referring now to Figures 3 and 4, there is shown a diagrammatic representation of a roller chain locking mechanism according to the present invention, indicated generally by the reference numeral 11. The roller chain locking mechanism 11 comprises an upper casing 13 and a lower casing 15. The upper casing 13 and the lower casing 15 each comprises one part of a pair of complementary releasable engagement members (not
-6shown) operable to secure the upper casing and lower casing together about the chain in a fixed relationship with respect to the chain.
Referring specifically to Figure 3, the roller chain locking mechanism is shown in an unlocked configuration free of the chain. The upper casing 13 is located above the chain and the lower casing is located below the segment of chain. A locking pin (not shown) is provided on one of the upper casing and the lower casing and a complementary receiving aperture is provided on the other of the upper casing and the lower casing. The upper casing and the lower casing are brought together (as illustrated in Figure 3). In this configuration, the locking pin will pass through the gap 10 in the chain and will be engaged in the receiving aperture. Moreover, the locking pin will pass through a gap between two adjacent links in the chain. The complementary releasable engagement members are then secured in position. The two casing parts may automatically lock together once they are brought into engagement or a key or other mechanism may be used to connect the two casing parts together. Similarly, once locked together, a key or other mechanism will be required to unlock the complementary releasable engagement members and separate the upper casing and lower casing from each other once more.
It will be understood that when in position on the roller chain, the roller chain locking mechanism will be held in place along the chain. If an attempt is made to cycle the bicycle by rotating the pedals, the roller chain locking mechanism will come into contact with one of the sprockets about which the chain rotates. Once the roller chain locking mechanism comes into contact with the sprocket, the roller chain locking mechanism will prevent correct operation of the bicycle. In the embodiment shown, the casing is dimensioned so that as the casing comes into contact with a sprocket (not shown), the casing will cause the chain to be derailed from the sprocket. Once the chain is derailed, the bicycle is effectively useless.
If an attempt is made to cut the roller chain locking mechanism off the chain, for example by using a bolt cutter, the chain will also be cut in the process, thereby rendering the bicycle inoperable. This is made possible in part by the fact that the releasable engagement members are encapsulated within the upper and lower casings and are inaccessible to an unscrupulous individual. This is a major advantage of the present invention over the existing offerings in the marketplace. Importantly, the roller chain
- 7locking mechanism will prevent the device on which it is being used to protect from being used without requiring repair.
In the present invention, a locking pin is described as being mounted on one of the upper and lower casing, passing through the chain and preferably being received in a complementary aperture in the other of the upper and the lower casing. However, it is envisaged that there may be two or more locking pins. Each or some of the locking pins may be provided with complementary receiving apertures. One or more locking pins may be mounted on the upper casing and one or more locking pins may be mounted on the lower casing and receiving apertures may be provided on one or both of the upper and lower casings for reception of the locking pins. Instead of locking pins passing through adjacent links of the chain, it is envisaged that the end of the casing may taper inwardly in a narrow neck portion intermediate two adjacent links of the chain. This too would prevent movement of the roller chain locking mechanism along the length of the chain and what is important is that the roller chain locking mechanism is held in a fixed position along the length of the chain so that when it comes into contact with a sprocket (or other part of the bicycle) it will prevent further use of the bicycle or other device.
It will be understood that various modifications could be made to the present invention without departing from the scope of the appended claims or the spirit of the invention. For example, in the embodiment described, the roller chain locking mechanism is substantially cylindrical in shape with each casing being hemi-cylindrical in shape. Other shapes are envisaged. For example, an ellipsoid (when in a combined, locking configuration) is also perceived as useful as it is believed that such a shape will promote derailing of the chain from the sprocket. It is further envisaged that this can be achieved without damaging the roller chain locking mechanism.
Instead of derailing the chain, it is envisaged that it would be sufficient to prevent rotation of the chain around the sprocket. This could be achieved by having the roller chain locking mechanism engaging one or more other teeth of the sprocket and preventing rotation of the sprocket when the roller chain locking mechanism comes into contact with the sprocket or indeed when the roller chain locking mechanism comes into contact with another part of the bicycle.
- 8Preferably, the roller chain locking mechanism will be designed so that it is highly visible. In this way, the roller chain locking mechanism will act as a more effective deterrent to theft. For example, the roller chain locking mechanism may be brightly coloured, using for example fluorescent and/or reflective paint and/or may be provided with one or more light emitting diodes (LEDs) that may flash intermittently to alert thieves that the bicycle is protected by such a locking device. Indeed, the roller chain locking mechanism according to the invention may be provided with an internal indelible or signature paint capsule that may burst if tampered with to cover the bicycle and/or the perpetrator of a crime with indelible or signature paint (by signature paint, what is meant is paint with a tracer that may or may not be visible but that will enable the subsequent identification of the bicycle and will allow any ownership disputes to be settled in a straight forward manner.
In the embodiment shown, the upper and lower casings are shown as separate components. However, preferably, it is envisaged that the upper casing will be hingedly mounted to the lower casing. Preferable, the upper casing and the lower casing will be hingedly mounted along a longitudinal side ofthe casing.
Finally, in the present invention, it is envisaged that a lock and key mechanism will be the preferred approach for operating the roller chain locking mechanism and for transitioning the roller chain locking mechanism to and from a locked configuration and an unlocked configuration. However, other well-known locking mechanisms could be used to equal effect, such as, but not limited to, a combination locking mechanism. Alternatively, an electronic sensor type system such as an RFID card/tag could be used as the key and an electronic lock could open upon presentation ofthe RFID card/tag in the vicinity of the electronic lock.
Although the roller chain locking mechanism of the present invention has been heretofore described in relation to a roller chain of a bicycle or such vehicle, it is envisaged that with minor modification, the roller chain locking mechanism could be applied to a belt-drive. Belt-drives can also be used in bicycles, motorcycles, scooters and such vehicles. Belt-drives are further used in machinery such as cars, buses, garden equipment such as lawnmowers, agricultural machinery and other mechanical applications. The use of belt-drives is seen as a less expensive and more durable
- 9alternative to roller chains. Furthermore, belt-drives are easier to install and maintain than roller chains. Belt-drives rely on the engagement of teeth on a belt-drive with grooves on a pulley.
Accordingly, a slightly modified roller chain locking mechanism comprising an upper casing, a lower casing and complementary releasable engagement members thereon to secure the upper and lower casings together in a fixed position on a belt-drive is envisaged. However, the modified roller chain locking mechanism, rather than having upper and lower casings fitted to a link on a roller chain, could be tightly clamped around at least one of the teeth of a belt-drive so that when in the locked configuration around at least one of the teeth of a belt-drive, the modified roller chain locking mechanism prevents revolution of the belt-drive around the pulley. It is also envisaged that the presence of the modified roller chain locking mechanism in a locked configuration fitted to at least one of the teeth of the belt-drive could result in the belt-drive being derailed from the pulley. Such a modified roller chain locking mechanism would be suitable for use with a belt-drive constructed from a durable material such as reinforced rubberized fabric, polyurethane or rubber.
It will be understood that the complementary releasable engagement members of the upper and lower casings of the modified roller chain locking mechanism will not be constructed to engage the teeth of a belt-drive in a manner that would compromise the integrity of the belt-drive. Accordingly, the modified roller chain locking mechanism could comprise the upper and lower casings being closely fitted around the length of at least one of the teeth of a belt-drive such that the upper casing and the lower casing are secured together by means of a pair of locking pins, each locking pin situated outward of either end of the length of the tooth on the belt-drive. In this way, the integrity of the beltdrive does not have to be compromised by perforation. Alternatively, it will be envisaged that the releasable engagement members of the upper and lower casings may comprise a means of engagement that affords the least intrusive manner of perforation of the beltdrive, such as a small through-hole in the centre of the belt-drive either side of the engaged tooth of the belt-drive.
- ΙΟΙ η this specification the terms “comprise, comprises, comprised and comprising” and the terms “include, includes, included and including” are all deemed totally interchangeable and should be afforded the widest possible interpretation.
The invention is in no way limited to the embodiment hereinbefore described but may be varied in both construction and detail within the scope of the appended claims.
Claims (15)
- Claims (1) A roller chain locking mechanism comprising an upper casing, a lower casing and complementary releasable engagement members on the upper and lower casings to secure the upper and lower casings in a fixed relationship with respect to each other, and in which in a locked configuration, the upper and lower casings are fitted to at least one link of the roller chain and secured together thereby encapsulating the at least one link of the roller chain and the complementary releasable engagement members therebetween and holding the roller chain locking mechanism in a fixed position along the length of the roller chain, the roller chain locking mechanism being configured so that when in the locked configuration around the at least one link of the roller chain, the roller chain locking mechanism prevents revolution of the roller chain about a sprocket.
- (2) A roller chain locking mechanism as claimed in claim 1 in which the complementary releasable engagement members comprise a locking pin intermediate the upper casing and the lower casing such that the locking pin is situated intermediate two adjacent links of the roller chain in the locked configuration.
- (3) A roller chain locking mechanism as claimed in claim 2 wherein the locking pin is mounted on one of the upper casing and the lower casing and in which there is provided a receiving aperture to receive the locking pin on the other of the upper casing and the lower casing.
- (4) A roller chain locking mechanism as claimed in claims 2 or 3 wherein there is a plurality of locking pins and a plurality of corresponding receiving apertures to receive said locking pins.
- (5) A roller chain locking mechanism as claimed in any preceding claim in which in an unlocked configuration, the upper casing and the lower casing are separate.
- (6) A roller chain locking mechanism as claimed in claims 1 to 4 wherein the upper casing and the lower casing are hingedly attached together.- 12(
- 7) A roller chain locking mechanism as claimed in any preceding claim wherein the upper casing and the lower casing are made of metal.
- (8) A roller chain locking mechanism as claimed in any preceding claim wherein the complementary releasable engagement members are actuated by a lock-and-key mechanism.
- (9) A roller chain locking mechanism as claimed in claims 1 to 7 wherein the complementary releasable engagement members are actuated by a combination lock mechanism.
- (10) A roller chain locking mechanism as claimed in any preceding claim wherein the upper casing and the lower casing are hemi-cylindrical in shape.
- (11) A roller chain locking mechanism as claimed in any of claims 1 to 9 wherein the upper casing and the lower casing are semi-ellipsoidal in shape.
- (12) A roller chain locking mechanism as claimed in any preceding claim in which the roller chain locking mechanism is configured to prevent revolution of the roller chain about a sprocket by derailing the chain off the sprocket upon rotation of the sprocket.
- (13) A roller chain locking mechanism as claimed in any of claims 1 to 11 in which the roller chain locking mechanism is configured to prevent revolution of the roller chain about a sprocket by engaging one or more additional teeth of the sprocket upon rotation of the sprocket.
- (14) A roller chain locking mechanism substantially as hereinbefore described with reference to and as illustrated by the accompanying drawings.
- (15) A bicycle lock as claimed in any of claims 1 to 14.IntellectualPropertyOfficeApplication No: GB1617010.2
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1617010.2A GB2554728A (en) | 2016-10-06 | 2016-10-06 | A roller chain locking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1617010.2A GB2554728A (en) | 2016-10-06 | 2016-10-06 | A roller chain locking mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB201617010D0 GB201617010D0 (en) | 2016-11-23 |
| GB2554728A true GB2554728A (en) | 2018-04-11 |
Family
ID=57610543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1617010.2A Withdrawn GB2554728A (en) | 2016-10-06 | 2016-10-06 | A roller chain locking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2554728A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4019354A (en) * | 1976-02-09 | 1977-04-26 | The Raymond Lee Organization, Inc. | Motorcycle chain lock |
| US4409804A (en) * | 1981-04-01 | 1983-10-18 | Sork Mark P | Vehicle anti-theft locking device |
| JPH035585A (en) * | 1989-06-01 | 1991-01-11 | Nec Corp | Hinge mechanism |
| JPH0495593A (en) * | 1990-08-10 | 1992-03-27 | Honda Wing Kk | Two-wheeler antitheft lock |
| BR9702811A (en) * | 1997-09-01 | 1999-04-27 | Santos Celso Francisco Dos | Anti-theft lock for vehicles pulled by aisle |
| GB2335458A (en) * | 1998-03-17 | 1999-09-22 | Clive David Logan | Lock for drive chain or toothed belt |
| DE202007009123U1 (en) * | 2007-06-29 | 2007-11-22 | Beese, Ronald | Anti-theft protection for bicycles and motorcycles |
| FR2917700A1 (en) * | 2007-06-19 | 2008-12-26 | Peugeot Citroen Automobiles Sa | Bonnet for motor vehicle, has skin forming visible side of bonnet and liner forming reinforcement, where liner includes stair shaped section in its central part to improve dampening of central part of bonnet in case of pedestrian impact |
| FR2924401A1 (en) * | 2007-12-04 | 2009-06-05 | Hugues Castarede | Anti-theft device for e.g. motorcycle, has fixed part with bore in which stud of one part is locked so that other part is locked geometrically between fixed part and former part making complete immobilization of transmission |
| DE202016001370U1 (en) * | 2016-02-25 | 2016-04-25 | Richard Wölfel | Mechanical immobilizer for vehicles with power transmission chain |
-
2016
- 2016-10-06 GB GB1617010.2A patent/GB2554728A/en not_active Withdrawn
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4019354A (en) * | 1976-02-09 | 1977-04-26 | The Raymond Lee Organization, Inc. | Motorcycle chain lock |
| US4409804A (en) * | 1981-04-01 | 1983-10-18 | Sork Mark P | Vehicle anti-theft locking device |
| JPH035585A (en) * | 1989-06-01 | 1991-01-11 | Nec Corp | Hinge mechanism |
| JPH0495593A (en) * | 1990-08-10 | 1992-03-27 | Honda Wing Kk | Two-wheeler antitheft lock |
| BR9702811A (en) * | 1997-09-01 | 1999-04-27 | Santos Celso Francisco Dos | Anti-theft lock for vehicles pulled by aisle |
| GB2335458A (en) * | 1998-03-17 | 1999-09-22 | Clive David Logan | Lock for drive chain or toothed belt |
| FR2917700A1 (en) * | 2007-06-19 | 2008-12-26 | Peugeot Citroen Automobiles Sa | Bonnet for motor vehicle, has skin forming visible side of bonnet and liner forming reinforcement, where liner includes stair shaped section in its central part to improve dampening of central part of bonnet in case of pedestrian impact |
| DE202007009123U1 (en) * | 2007-06-29 | 2007-11-22 | Beese, Ronald | Anti-theft protection for bicycles and motorcycles |
| FR2924401A1 (en) * | 2007-12-04 | 2009-06-05 | Hugues Castarede | Anti-theft device for e.g. motorcycle, has fixed part with bore in which stud of one part is locked so that other part is locked geometrically between fixed part and former part making complete immobilization of transmission |
| DE202016001370U1 (en) * | 2016-02-25 | 2016-04-25 | Richard Wölfel | Mechanical immobilizer for vehicles with power transmission chain |
Also Published As
| Publication number | Publication date |
|---|---|
| GB201617010D0 (en) | 2016-11-23 |
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| GB2303598A (en) | Bicycle lock |
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