EP1217150A1 - Verbindungsvorrichtung für ein Verriegelungssystem eines Kraftfahrzeugs - Google Patents

Verbindungsvorrichtung für ein Verriegelungssystem eines Kraftfahrzeugs Download PDF

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Publication number
EP1217150A1
EP1217150A1 EP00204734A EP00204734A EP1217150A1 EP 1217150 A1 EP1217150 A1 EP 1217150A1 EP 00204734 A EP00204734 A EP 00204734A EP 00204734 A EP00204734 A EP 00204734A EP 1217150 A1 EP1217150 A1 EP 1217150A1
Authority
EP
European Patent Office
Prior art keywords
drive gear
drive
gear
mechanism according
force
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Withdrawn
Application number
EP00204734A
Other languages
English (en)
French (fr)
Inventor
Colin Peachy
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MG Rover Group Ltd
Original Assignee
MG Rover Group Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by MG Rover Group Ltd filed Critical MG Rover Group Ltd
Priority to EP00204734A priority Critical patent/EP1217150A1/de
Publication of EP1217150A1 publication Critical patent/EP1217150A1/de
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B79/00—Mounting or connecting vehicle locks or parts thereof
    • E05B79/10—Connections between movable lock parts
    • E05B79/12—Connections between movable lock parts using connecting rods
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B17/00—Accessories in connection with locks
    • E05B17/04—Devices for coupling the turning cylinder of a single or a double cylinder lock with the bolt operating member
    • E05B17/042—Devices for coupling the turning cylinder of a single or a double cylinder lock with the bolt operating member using toothed wheels or geared sectors
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B17/00—Accessories in connection with locks
    • E05B17/20—Means independent of the locking mechanism for preventing unauthorised opening, e.g. for securing the bolt in the fastening position
    • E05B17/2084—Means to prevent forced opening by attack, tampering or jimmying
    • E05B17/2092—Means responsive to tampering or attack providing additional locking
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B53/00—Operation or control of locks by mechanical transmissions, e.g. from a distance
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B77/00—Vehicle locks characterised by special functions or purposes
    • E05B77/44—Burglar prevention, e.g. protecting against opening by unauthorised tools

Definitions

  • the present invention relates to a motor vehicle assembly, and in particular to an improved connecting assembly for use in a motor vehicle lock system assembly.
  • Some known systems overcome this difficulty by providing an additional shutter mechanism to the lock assembly.
  • the additional shutter mechanism closes to prevent access to the lock drive if the shaft is removed.
  • the provision of such an additional shutter mechanism adds to the cost and complexity of the lock assembly.
  • the present invention has as advantages that overcomes these difficulties. Further advantages of the present invention will be made clear below.
  • a connecting mechanism for use with a motor vehicle locking system is characterised by a gear train having at least a first drive gear and a final drive gear, the first drive gear being adapted to retain a drive shaft, in which removal of the drive shaft from the first gear causes drive gears of the drive train to become axially displaced with respect to one another such that rotation of the first drive gear no longer causes the final drive gear to be driven.
  • the first drive gear is adapted to be rotated about a first axis, to move between a first axial position and a second axial position on overcoming a first force
  • the first drive gear further comprises a cam, the cam extending behind a second drive gear in a second radial position of the first drive gear, in that the second drive gear is adapted to be driven about a second axis by the first drive gear, the second drive gear being moveable between a first axial position and a second axial position on overcoming a second force
  • the final drive gear comprises a third drive gear adapted to be rotated about a third axis by the second drive gear when the second drive gear is in the first axial position, and in that if the first force is greater than the second force, the second drive gear is removed from driving engagement with the third drive gear.
  • FIG. 1 and 2 there may be seen a connecting mechanism in accordance with the present invention.
  • a housing comprising a base portion 2 and a cover portion 4 is provided.
  • the cover portion 4 will be considered to be at a forward region of the connecting mechanism.
  • the base portion 2 is provided with a first spigot 6, a second spigot 8 and a third spigot 10.
  • the first spigot 6 is provided within a recess 12 formed in the base portion 2.
  • the second spigot 8 is provided to an edge of the recess 12.
  • the second spigot 8 is provided with detent means 14.
  • the cover portion 4 is provided with a boss 16.
  • the boss 16 is of a suitable size and shape to receive a free end 18 of the second spigot 8.
  • a first drive gear 20 is provided, adapted to be rotatable about the first spigot 6.
  • the first drive gear 20 includes a first gear wheel 22 having a plurality of drive teeth 24 disposed about at least a part of a periphery of the first gear wheel, engagement means 26 adapted to releasably engage a drive shaft 28, and a cam 30.
  • the cam 30 and the engagement means 26 are disposed on opposite sides of the first gear wheel 22.
  • the recess 12 in the base portion is adapted to receive the cam 30.
  • the recess 12 defines a path through which the cam 30 may travel.
  • Access to the engagement means 26 is provided through an opening 32 in the housing.
  • the opening 32 may conveniently be provided between the base portion and the cover portion, or solely through the cover portion.
  • a second drive gear 34 is provided, adapted to be rotatable about the second spigot 8.
  • the second drive gear 34 comprises a second gear wheel 36 having a plurality of drive teeth 38 disposed about at least a part of a periphery of the second gear wheel.
  • the second gear wheel extends in a plane disposed forwardly of a plane through which the cam 30 of the first gear wheel is adapted to rotate.
  • the second drive wheel 36 is normally located axially on the second spigot 8 by the detent means 14 on the second spigot, such that the plurality of teeth 24 of the first gear wheel mate with and drive the plurality of teeth 38 of the second gear wheel.
  • a force F 2 is required to displace the second gear wheel 36 axially along the second spigot 8 beyond the detent means 14. The location of the boss 16 on the cover portion 4 prevents the second gear wheel 36 from becoming separated from the second spigot 8.
  • a third drive gear 40 is provided, adapted to be rotatable about the third spigot 10.
  • the third drive gear 40 comprises a third gear wheel 42 having a plurality of drive teeth 44 disposed about at least a part of a periphery of the third gear wheel.
  • the third gear wheel 42 is located axially on the third spigot 10, such that the plurality of teeth 44 of the third gear wheel may normally mate with and be driven by the plurality of teeth 38 of the second gear wheel.
  • the third drive gear 40 further comprises a first finger 46 and a second finger 48, teeth extending radially from the third drive gear.
  • the components of the connecting mechanism are assembled as shown in Fig. 1 and Fig. 2 and the housing sealed.
  • a drive shaft 28 from a lock system is inserted into the engagement means 26.
  • a force F 1 is required to remove the drive shaft 28 from the engagement means 26.
  • the connecting mechanism is so constructed that the value of F 1 is greater than the value of F 2 .
  • the drive shaft 28 is retained within and engages with the engagement means 26 of the first drive gear. Rotation of the drive shaft 28, caused by successful operation of the lock assembly causes rotation of the first gear wheel 22. This in turn causes the third gear wheel 42 to be driven by way of the second gear wheel 36. The radially extending first and second fingers 46,48 then act to operate a door latch mechanism.
  • the first gear wheel 22 may or may not be able to drive the second gear wheel 36. In either case, the second gear wheel 36 cannot be made to drive the third gear wheel 42 while the second gear wheel 36 is in the axially displaced position. This is true independent of the force applied to the first ger wheel 22 applied through the opening 32.
  • the lock system When the drive shaft 28 is to be removed for a legitimate reason, for example during repair or servicing, the lock system is first moved to an unlocked position.
  • the cam 30 When the lock system is in the unlocked position, the cam 30 is driven by the drive shaft 28 to take up a position in which the cam 30 extends to one side of the second gear wheel 36 and not behind the second gear wheel 36.
  • the cam 30 is axially displaced alongside the second gear wheel 36 and does not axially displace the second gear wheel 36.
  • the first gear wheel 22 can then be returned to its original axial position, for example by reassembling the drive shaft 28 into the engagement means 26.
  • the second gear wheel 36 may be returned to the correct axial position by use of a tool through a special access hole 50 provided in the cover portion 4 or by removal of a part of the cover portion.

Landscapes

  • Lock And Its Accessories (AREA)
EP00204734A 2000-12-22 2000-12-22 Verbindungsvorrichtung für ein Verriegelungssystem eines Kraftfahrzeugs Withdrawn EP1217150A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP00204734A EP1217150A1 (de) 2000-12-22 2000-12-22 Verbindungsvorrichtung für ein Verriegelungssystem eines Kraftfahrzeugs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP00204734A EP1217150A1 (de) 2000-12-22 2000-12-22 Verbindungsvorrichtung für ein Verriegelungssystem eines Kraftfahrzeugs

Publications (1)

Publication Number Publication Date
EP1217150A1 true EP1217150A1 (de) 2002-06-26

Family

ID=8172514

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00204734A Withdrawn EP1217150A1 (de) 2000-12-22 2000-12-22 Verbindungsvorrichtung für ein Verriegelungssystem eines Kraftfahrzeugs

Country Status (1)

Country Link
EP (1) EP1217150A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101694137A (zh) * 2009-10-14 2010-04-14 张文权 凸轮遥控报警门锁

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2200681A (en) * 1987-02-04 1988-08-10 Surelock Mcgill Limited Cover plate for cylinder rim lock
GB2288629A (en) * 1994-04-19 1995-10-25 Denis William Dixon Isolating linkage for vehicle immobiliser
DE19823188A1 (de) * 1998-05-23 1999-12-02 Kiekert Ag Kraftfahrzeugtürverschluß
US6032496A (en) * 1997-07-18 2000-03-07 Robert Bosch Gmbh Door lock arrangement for motor vehicles

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2200681A (en) * 1987-02-04 1988-08-10 Surelock Mcgill Limited Cover plate for cylinder rim lock
GB2288629A (en) * 1994-04-19 1995-10-25 Denis William Dixon Isolating linkage for vehicle immobiliser
US6032496A (en) * 1997-07-18 2000-03-07 Robert Bosch Gmbh Door lock arrangement for motor vehicles
DE19823188A1 (de) * 1998-05-23 1999-12-02 Kiekert Ag Kraftfahrzeugtürverschluß

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101694137A (zh) * 2009-10-14 2010-04-14 张文权 凸轮遥控报警门锁
CN101694137B (zh) * 2009-10-14 2013-04-17 张文权 凸轮遥控报警门锁

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