US3863473A - Cylinder lock with key in particular for steering-wheel locks for motor vehicles - Google Patents

Cylinder lock with key in particular for steering-wheel locks for motor vehicles Download PDF

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Publication number
US3863473A
US3863473A US390492A US39049273A US3863473A US 3863473 A US3863473 A US 3863473A US 390492 A US390492 A US 390492A US 39049273 A US39049273 A US 39049273A US 3863473 A US3863473 A US 3863473A
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United States
Prior art keywords
lock
key
projection
lever
housing
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US390492A
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English (en)
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Charles Owen Neale
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Dom Sicherheitstechnik GmbH and Co KG
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Individual
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Assigned to DOM-SICHERHEITSTECHNIK GMBH & CO KG, A LIMITED LIABILITY COMPANY OF GERMANY reassignment DOM-SICHERHEITSTECHNIK GMBH & CO KG, A LIMITED LIABILITY COMPANY OF GERMANY ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: NEAL CHARLES O
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • B60R25/01—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens
    • B60R25/02—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the steering mechanism
    • B60R25/021—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the steering mechanism restraining movement of the steering column or steering wheel hub, e.g. restraining means controlled by ignition switch
    • B60R25/0211—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the steering mechanism restraining movement of the steering column or steering wheel hub, e.g. restraining means controlled by ignition switch comprising a locking member radially and linearly moved towards the steering column
    • B60R25/02115—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the steering mechanism restraining movement of the steering column or steering wheel hub, e.g. restraining means controlled by ignition switch comprising a locking member radially and linearly moved towards the steering column key actuated
    • B60R25/02118—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the steering mechanism restraining movement of the steering column or steering wheel hub, e.g. restraining means controlled by ignition switch comprising a locking member radially and linearly moved towards the steering column key actuated with linear bolt motion parallel to the lock axis
    • B60R25/02121—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the steering mechanism restraining movement of the steering column or steering wheel hub, e.g. restraining means controlled by ignition switch comprising a locking member radially and linearly moved towards the steering column key actuated with linear bolt motion parallel to the lock axis comprising safety devices avoiding locking until removal of the key
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • B60R25/01—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens
    • B60R25/02—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the steering mechanism
    • B60R25/021—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the steering mechanism restraining movement of the steering column or steering wheel hub, e.g. restraining means controlled by ignition switch
    • B60R25/0211—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the steering mechanism restraining movement of the steering column or steering wheel hub, e.g. restraining means controlled by ignition switch comprising a locking member radially and linearly moved towards the steering column
    • B60R25/02115—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the steering mechanism restraining movement of the steering column or steering wheel hub, e.g. restraining means controlled by ignition switch comprising a locking member radially and linearly moved towards the steering column key actuated
    • B60R25/02126—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the steering mechanism restraining movement of the steering column or steering wheel hub, e.g. restraining means controlled by ignition switch comprising a locking member radially and linearly moved towards the steering column key actuated with linear bolt motion perpendicular to the lock axis
    • B60R25/02128—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the steering mechanism restraining movement of the steering column or steering wheel hub, e.g. restraining means controlled by ignition switch comprising a locking member radially and linearly moved towards the steering column key actuated with linear bolt motion perpendicular to the lock axis comprising safety devices avoiding locking until removal of the key
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B27/00—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/50—Special application
    • Y10T70/5611—For control and machine elements
    • Y10T70/5646—Rotary shaft
    • Y10T70/565—Locked stationary
    • Y10T70/5655—Housing-carried lock
    • Y10T70/5664—Latching bolt
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/70—Operating mechanism
    • Y10T70/7441—Key
    • Y10T70/7486—Single key
    • Y10T70/7508—Tumbler type
    • Y10T70/7559—Cylinder type
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/70—Operating mechanism
    • Y10T70/7441—Key
    • Y10T70/778—Operating elements
    • Y10T70/7791—Keys
    • Y10T70/7842—Single shank or stem
    • Y10T70/7859—Flat rigid
    • Y10T70/7864—Cylinder lock type

Definitions

  • the key projects from the keyway past the surface of the cylinder plug and penetrates into a space beyond the longitudinal groove for maintaining the key in its inserted position.
  • a lock bolt e.g., of a steering wheel lock, is released by the control member upon entrainment thereof by the key projection.
  • the present invention relates to a cylinder lock having a key, which has a profile or formation on its back in order to control additional functions of the lock upon the withdrawal of the key.
  • Keys of this type are known for cylinder locks on steering wheels of motor vehicles. They have a notch on the back of the key. The free ends of pins or levers which are displaceable radially of the cylindrical plug project a certain distance into the keyway. When the key is withdrawn, an alarm device can be set or a latch can be set by the displacement of the control member which is effected by the withdrawal. Keys having a recess in the vicinity of their tip are also known. If a key without such a recess or a picklock is used to open the cylinder lock, an alarm is sounded as a result of the control member being displaced too far. Control members are also used on cylinder locks to produce certain electrical indicating functions when the key is removed.
  • the key has a transversely oriented extension which projects into a longitudinal groove of the lock cylinder housing upon the insertion and withdrawal of the key, projects beyond the surface of the cylinder plug from out of the keyway, and enters into a space beyond the longitudinal groove.
  • the extension is furthermore advantageously offset with respect to the surface of the back of the key, so that the rear edge lines are continuous even in the region of the extension.
  • the extension upon the withdrawal of the key, entrains an axially displaceable control member against spring action in the direction of insertion of the key, into the region of a shoulder (control bevel) of the lock cylinder housing which disengages the control member from the key extension.
  • the control member can have a hook-shaped extension, one shoulder of which is engaged by the key extension, while its opposite inclined surface cooperates with the control bevel of the lock cylinder housing.
  • the control member can be fork-shaped and provided with an entrance slot, open on one side, for the support pin, along which the longer arm of the control member slides during the axial driving displacement.
  • the cylinder barrel has two or more key withdrawal positions and the longitudinal is aligned with the keyway in only one of these withdrawal positions.
  • control member enters axially into a transverse groove of a lock latching bolt or the like, which can be displaced by an eccentric on the cylinder barrel.
  • control member prefferably supported in a channel in the housing on the other side of the entrance slot for the latching bolt or the like.
  • Another embodiment has the end of the axially displaceable control member which is directed towards the interior of the lock act, in the direction of release, on a holding part, which is urged by a spring in radial direction and in withdrawn position locks into the tail of the lock and latching bolt.
  • the holding part can be of U-shape and spring loaded in the vicinity of outwardly directed projections of the arms of the U so that the control member cross over the inside of the U.
  • control member in addition to the axially acting spring, a spring which acts in radially inward direction is associated with the control member.
  • control member it is also favorable for the control member to have a control head with an obliquely ascending flank on the end facing the interior of the lock.
  • a holding member for the lock latching bolt tail can be urged in radial direction by a spring and can engage in transverse recesses of the lock cylinder housing extending laterally from the longitudinal groove of the lock cylinder housing.
  • the holding member is, advantageously, acted on by the axially displaceable control member.
  • the lock latching-bolt tail can have a catch arranged in front of the holding member, which moves in front of the extension of a disk which is rotatable together with the barrel of the cylinder, so as to lock same when the lock latching bolt is in the locking position.
  • the key is guided better in the lock particularly when the extension is offset with respect to the rear edge.
  • the shape of the extension particularly on the upper edge and/or on the flank facing the outer handle of the key can also contribute to the variation of the profile in case of a suitable shape of the space beyond the longitudinal groove.
  • the projection can also serve for the driving along of the locking member ofthe cylinder lock, so that such a lock can easily be constructed as a double cylinder in which case locking can be effected from one side even though a key is inserted on the other side.
  • the key Upon insertion and withdrawal of the key, the key passes through the longitudinal groove of the lock cylinder housing. Only after complete insertion of the key does the extension enter into the space beyond the longitudinal groove, which permits the rotation of the key together with the cylinder plug.
  • the extension in combination with the tumbler pins, prevents the withdrawal of the key.
  • the cylinder plug must always be brought into the key withdrawal position in which the extension is then again aligned with the longitudinal groove. In case of an incorrect attempt at withdrawal the tumbler pins remain protected.
  • a control process can also be brought about at a specific moment which may also differ, without any changes in the cylinder lock being necessary.
  • This control bevel can, for instance, contribute toward holding the control member in this controlled position, so that the introduction of the key can be carried out more easily.
  • a longitudinal displacement of the control member can then be effected only after a locking actuation.
  • the control member it is also possible for the control member to slide back into its initial position after complete withdrawal of the key and for its hook-shaped extension to then enter into the path of movement of the key extension.
  • the control member is then briefly tilted by the bevelled front edge of the key projection and assumes its original position again after passing over the key projection.
  • a supporting pin of the lock cylinder housing which is oriented transversely to the control member and serves to support the longer arm of the fork-shaped control member can contribute towards fixing the position of the control member.
  • the present invention makes it possible to provide two or more key withdrawal positions.
  • the longitudinal groove of the lock cylinder housing is preferably aligned with the keyway only in one position of withdrawal. This means that while the cylinder plug can be actuated by a key which does not have the extension, it has no effect nevertheless upon the control member.
  • the cylinder plug can be brought into its other withdrawal positions by means of thekey which has the control projection; the key can then not be withdrawn in these positions.
  • This solution can be used in various fields, for instance, for the coin-operated locks of booths in public establishments such as swimming pools or the like. When the door is opened, the cylinder lock is in the position in which the key having the key projection cannot be withdrawn.
  • the coin After insertion of a coin and the turning of the cylinder plug into its other withdrawal position, so as to lock it, the coin is released via the control member when the key is withdrawn.
  • a cylinder lock could also be used for electrical switch devices.
  • the control member serves as a stop for the locking bolt of the lock.
  • the control member which is urged by a spring in the direction of insertion of the key, enters into the transverse groove of this lock bolt and blocks its release. This blocking is also maintained when the cylinder plug is turned back to the key withdrawal position.
  • the present invention can also be used very favorably for steering wheel locks whose bolt emerges axially from the steering wheel lock housing.
  • the control member serves to act upon the holding part securing the lock bolt.
  • the holding part is always spring-loaded in the direction of its engagement position and is displaced in the direction of release by the control member only in the final phase of the key withdrawal motion.
  • the holding part and control member in this case fit favorably into the overall design of the steering wheel lock.
  • a radial recess in the steering wheel lock housing is particularly suited for guidance of the holding part.
  • a holding member spring-mounted in radial direction can also be provided in the lock bolt tail itself. The release of the holding member, in that case, could also be produced directly by the projection although the control path would be shorter.
  • a catch may also be located ahead of the holding member in the lock bolt tail which, after removal of the key, as a result of the displacement ofthe lock bolt is moved in front of a projection on the disk which is rotatable with the cylinder barrel. In this way, the lock bolt is secured in its bolting position and can be displaced only by means of the proper key.
  • FIG. I is a longitudinal section through a cylinder lock in accordance with a first embodiment, with the key fully inserted;
  • FIG. 2 is a view similar corresponding to that of FIG. 1, but with the key almost completely withdrawn;
  • FIG. 3 is an end view of the cylinder lock of FIGS. 1 and 2;
  • FIG. 4 is a section along the line IV-IV of FIG. 1, with the key inserted and the cylinder barrel rotated;
  • FIG. Sis an end view of a cylinder lock with a flat key according to a second embodiment of the present invention.
  • FIG. 6 is a section along the line VI-VI of FIG. 5;
  • FIG. 7 is an elevation of a third embodiment of the present invention, in which the cylinder lock is associated with a steering wheel lock, with its key;
  • FIG. 8 is a longitudinal section through the steering wheel lock, with the lock bolt blocked by the control member in the key-withdrawal position;
  • FIG. 9 is a section along the line IX--IX of FIG. 8;
  • FIG. 10 is a section corresponding to FIG. 9, but with the key completely withdrawn and with the lock bolt in the blocking position;
  • FIG. 11 is a longitudinal section, disclosing another embodiment of a steering wheel lock, with the lock bolt emerging axially from the steering wheel lock housing;
  • FIG. 12 is a cross section along the line XIIXII of FIG. 11;
  • FIG. 13 is a longitudinal section of an embodiment constituting a variation of the steering wheel lock housing with an axially emerging lock bolt, before withdrawal of the key;
  • FIG. 14 is a fragmentary longitudinal section corresponding to FIG. 13, but with the key withdrawn and with the lock bolt in the bolting position;
  • FIG. 15 is a section along the line XV-XV of FIG. 14.
  • the cylinder lock of FIGS. 1 to 4 comprises a lock cylinder housing I.
  • a supporting bore 2 is provided to receive the cylinder barrel 3.
  • Radial bores of the cylinder plug 3 and lock cylinder housing 1 contain pairs of tumbler pins 4 loaded by springs 5.
  • the cylinder plug 3 has a portion 3' which projects axially beyond the rear end 6 of the lock cylinder housing 1. This projecting section 3 of the cylinder plug 3 receives the locking member 7, which is connected for rotation with the cylinder plug 3 by means of a transverse pin 8.
  • the cylinder plug 3 also includes a keyway 9.
  • the cylinder lock of FIGS. 14 has two key withdrawal positions, I and II.
  • another row of tumbler pins 10 is provided in the lock cylinder housing 1, angularly offset from the key withdrawal position 1.
  • a longitudinal groove 11 of the lock cylinder housing 1 is aligned with the keyway or slot 9.
  • the control member 12 moves within this longitudinal groove 11.
  • the control member is fork-shaped and has a slot 13, open toward the rear and receiving the bearing pin 14 fixed in the lock cylinder housing I and oriented transversely to the longitudinal groove 11. In the initial position of the control member 12, the two arms of the fork l5 and 16 embrace the pin 14.
  • the end of the control member 12 facing the keyinsertion opening of the cylinder barrel 3 is equipped with a hook-shaped projection 17.
  • the projection extends up to the surface of the cylinder plug and may also extend into the keyway 9 to a certain extent.
  • the hook-shaped projection 17 forms a shoulder oriented radially with respect to the cylinder barrel 3. Opposite this shoulder 18 is an inclined plane 19.
  • the control member 12 is acted on in the direction of insertion of the key by a compression spring 20.
  • One end of this spring 20 is seated in a blind hole 21 of the control member and the other end is supported against the end wall 22 of the longitudinal groove 11 of the lock cylinder housing 1.
  • the compression spring 20 is inclined with respect to the path of motion of the control member 12, so that the latter is displaced rearwardly in a longitudinal direction and is swung in a counterclockwise direction by the spring 20.
  • the bearing pin 14 constitutes the pivot point for the control member 12.
  • the end wall 22 has a control bevel 23 directed toward the keyway 9 and leaves free a channel 24 adjacent to the cylinder surface and aligned with the longitudinal groove 11.
  • the channel 24 and the connecting longitudinal groove 11 permit the insertion of the key 25.
  • the key has a transverse projection 26 in the region of its tip on its rear surface opposite to the key notches. This projection 26 forms a bevelled front edge 27, which merges with the corresponding inclined flank of the key tip. Opposite the front edge 27 is the entraining shoulder 28 of the projection 26.
  • a recess 29 of the locking member 7 is aligned with the keyway 9.
  • the control member Before the insertion of the key 25, the control member is in the position shown in FIG. 1.
  • the projection 26 of the key which projects into the path of motion of the key when the key is inserted, passes with its bevelled front edge 27 over the inclined plane 19 of the control member and cams the control member 12 in a clockwise sense. After passing over the extension 17 of the control member 12, the latter returns to its initial position in accordance with FIG. 1. In this position, the pairs of tumbler pins have been set in such manner by the key notches, that their plane of separation is at the level of the cylinder plug surface.
  • the key projection 26 is now located in a space R beyond the longitudinal groove 11. This space R, in the embodiment shown, is formed by the boundary of the lock cylinder housing 1.
  • the key projection 26 is therefore located beyond the rear end 6 of the lock cylinder housing 1.
  • the cylinder plug can now be rotated into its different positions. If the cylinder plug is brought into the key-withdrawal position II (see FIG. 4), then the key 25 cannot be withdrawn, since this is prevented by the key projection 26. A withdrawal of the key is possible only in the key withdrawal position I. In that case, the keyway 9 is again aligned with the longitudinal groove 11 of the lock cylinder housing 1.
  • the driving shoulder 28 of the key projection 26 acts on the shoulder 18 of the hook-shaped projection 17 of the control member 12. In this process, the control member is displaced in a longitudinal direction until its inclined plane 19 encounters the control bevel 23 of the lock cylinder housing 1.
  • the control member is positively turned, so that it takes on the position shown in FIG. 2 and thereby permits the complete withdrawal of the key 25.
  • the longer arm 16 of the fork-shaped control member slides along the pin 14.
  • the control member 12 then returns to its original position as shown in FIG. 1. In this position, locking can be carried out with a key with no projection. However, in a locking of this type, the control member 12 does not operate. A key of this type can then also be withdrawn in the withdrawal position II.
  • control member is associated with a cylinder lock with a flat-key design.
  • the cylinder plug 30 shows a key 9' oriented transversely to the tumbler pins.
  • Two rows of tumbler pins 4 are provided, as shown in FIG. 6, in two adjacent rows, in such a way that a staggered arrangement is obtained.
  • the tumbler pins are profiled in order to make them nonrotatable.
  • the keyway 9 is closed off on one side by a filler body 31 into which the keyway 9' extends. However, the width of the keyway 9' in the filler body 31 is less than the thickness of the control member 12, so that the latter is positively supported in the plane of the cylinder plug surface.
  • the key 25 associated with this cylinder lock also has a projection 26 which, during insertion, passes over the extension 17 of the control member, which projection 26 moves the control member 12 in the direction of withdrawal of the key when the key is withdrawn.
  • the projection is thinner than the rest of the key thickness, so that the projection is recessed stepwise with respect to the back of the key from which it extends. This ensures a cleaner guidance, despite the longitudinal groove of the housing.
  • This recessed form of the projection can also be provided for the embodiment according to FIGS. 1 to 4, if in particular, despite the guidance of the key provided by its curved profile in that case, one wishes to achieve a well-fitting guidance of the back.
  • the depressions setting the tumbler pins are located on one of the broad sides of the key shank.
  • the device of the present invention has been incorporated in a steering wheel lock.
  • This contains the steering wheel lock housing 32 which receives the lock cylinder housing 1'.
  • the cylinder barrel 3 mounted in the lock cylinder housing 1' is connected at its rear end with the eccentric 33, which controls a lock bolt 36 displaceable in a transverse entrance slot 34 of the steering wheel lock housing 32 and acted upon by the bolt spring 35 (FIGS. 9 and 10).
  • the lock bolt 36 consists of a frame-shaped bolt tail 37 and a bolt head 38 pivotally connected therewith which, in the blocking position, engages in a recess in the steering column.
  • the bolt tail 37 contains an opening 39 for the shaft 40 secured to the eccentric 33.
  • the shaft 40 passes through a bore 41 of the steering wheel lock housing 32 and engages the ignition starting switch 42, whose switch cylinder, which is not shown in detail, is turned in accordance with the locking positions of the cylinder plug 3.
  • the lock cylinder housing 1' is also equipped with a longitudinal groove 11, which is aligned with a corresponding housing channel 32 of the steering wheel lock housing 32.
  • the housing channel 32 extends up to both sides of the entrance groove 34 of the lock bolt 36.
  • the shorter arm is missing.
  • the longer arm 16 has at its end the locking projection 44, which has a larger cross section.
  • the back 43 of the control member 12 is curved.
  • the locking projection 44 of the control member 12 engages in a transverse groove 45 of the lock bolt 36.
  • control member 12 In the blocking position, the control member 12 is in the position shown by the broken lines in FIG. 9.
  • the transverse groove 45 of the lock bolt 36 is therefore not in the same plane as the control member 12, so that the latter rests against the broad surface of the lock bolt 36.
  • the projection 26 moves over the extension 17 of the control member.
  • the projection 26 projects into the space R beyond the longitudinal groove 11, so that the cylinder plug can then be rotated.
  • the eccentric 33 displaces the lock bolt 36, after which the transverse groove 45 of the lock bolt 36 is aligned with the locking projection 44 of the control member 12.
  • the compression spring 20 now displaces the control member 12' into the position shown in solid lines in FIGS. 8 and 9.
  • the arm 16 of the control member 12' is supported on both sides of the lock bolt in this position, so that this control member 12 can withstand high transverse forces, which significantly increases the reliability of a steering wheel lock of this type.
  • the eccentric 33 releases the lock bolt 36, the latter is still held by the control member 12'.
  • the control member 12 releases the lock bolt only during the last phase of the key withdrawal, during which last withdrawal phase the control member 12 is turned into the position shown by the broken line in FIG. 8 by means of the control bevel 23 of the lock cylinder housing 1.
  • the lock bolt 36 can then spring ahead into the position shown in FIG. 10.
  • the embodiment according to FIGS. 11 and 12 is a steering wheel lock, in which the lock bolt 46 emerges axially from the tubular steering wheel lock housing 47.
  • the lock bolt tail 46' forms a hook 48, which engages in a control slot 49 of the eccentric 33.
  • the lock bolt 46 is under the action of a compression spring 35, which urges it in the direction of engagement.
  • the lock bolt 46 is in the same plane as the longitudinal groove 11 of the lock cylinder housing 1.
  • the axially displaceable control member 12 moves within this longitudinal groove 11.
  • the control member 12" is acted on in axial direction by the compression spring 20.
  • the urging in radially inward direction of the control member 12 is produced by a compression spring 50, which is supported in an axial recess 52 of the steering wheel lock housing 47 by means of a sliding pin 51.
  • the control member 12" At its end of smaller cross section which faces the inside of the lock, the control member 12" has a control head 53 with an ascending inclined flank 54. This control head 53 at the end of the control member 12' is directed toward the inside of the lock are supported against the back 55 of the lock bolt tail 46'.
  • This back 55 has a detent recess 56 which, when the lock bolt is drawn back (see FIG. 11) is aligned with a radial recess 57 of the steering wheel lock housing 47.
  • a springmounted, U-shaped holding part (detent) 58 moves in this radial recess 57.
  • the U-arms of the holding part 58 are equipped with outwardly directed projections 60, which are acted on by compression springs 61.
  • the radial recess 57 is closed in the region of the compression springs 61 by means of plugs 62.
  • the inner space 63 of the U is crossed by the end of the holding part 58 which is directed toward the inside of the lock.
  • the fifth embodiment according to FIGS. 13 to also shows a steering wheel lock with an axially emerging lock bolt 46.
  • the lock bolt tail 46' is continued beyond the hook 46.
  • a holding member 66 which is displaceable in a direction radially to the lock cylinder housing, is mounted at the free end of the lock bolt tail 46. This holding member 66 is acted on by the compression spring 67. With the lock bolt drawn back (see FIG. 13), the holding member 66 engages arrestingly into transverse recesses 68 of the lock cylinder housing 1'.
  • the transverse recesses 68 extend laterally from the longitudinal groove 11 of the lock cylinder housing 1.
  • the control member 12 is associated with the holding member 66.
  • the control member is acted on by the inclined compression spring
  • the control member 12" is guided by a pin 69 oriented transversely to the longitudinal groove 11, which moves in longitudinal slots 70 of the lockcylinder housing 1.
  • a catch 71 is mounted in front of the holding member 66 in the lock bolt tail 46. This catch 71 is springloaded in radial direction and is equipped with a catch bevel 72. The catch 71 is thus arranged in a nonrotatable manner. A projection 73 of a disk 74 is associated with this catch 71. The disk 74 is located nonrotatably on the cylinder plug 3.
  • a cylinder lock comprising:
  • a key having a shank provided along one side with lock-actuating formations and another side provided with a lateral projection;
  • a lock barrel rotatable in said housing and having a keyway adapted to receive the shank of said key
  • said housing being formed with a longitudinal groove, said projection passing through said groove upon insertion of said key into said keyway, said housing being formed with a space beyond said groove accommodating said projection upon full insertion of said key into said keyway to permit relative rotation of said barrel and said housing, said projection blocking such rotation while being disposed in said groove;
  • control means actuated by said projection and external of said keyway for operating a further device.
  • control means comprises:
  • lever mounted in said groove and axially and radially displaceable therein, said lever being formed with a shoulder engageable by said projection upon withdrawal of said key from said keyway to entrain said lever therewith;
  • cammin g means on said housing engageable with said lever for disengaging same from said projection immediately prior to full withdrawal of said key from said keyway;
  • spring means biasing said lever in the direction of insertion of said key.
  • said further device is a lock bolt, said lock bolt having a transverse groove, said lever extending axially into said groove and said barrel being formed with an eccentric for displacing said bolt.
  • said detent means includes a bridge member and a pair of springs biasing said bridge member into engagement with said bolt, said lever engaging said bridge member between its biasing springs.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lock And Its Accessories (AREA)
US390492A 1972-08-28 1973-08-22 Cylinder lock with key in particular for steering-wheel locks for motor vehicles Expired - Lifetime US3863473A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1269772A CH544868A (de) 1972-08-28 1972-08-28 Zylinderschloss mit Schlüssel

Publications (1)

Publication Number Publication Date
US3863473A true US3863473A (en) 1975-02-04

Family

ID=4385540

Family Applications (1)

Application Number Title Priority Date Filing Date
US390492A Expired - Lifetime US3863473A (en) 1972-08-28 1973-08-22 Cylinder lock with key in particular for steering-wheel locks for motor vehicles

Country Status (10)

Country Link
US (1) US3863473A (it)
JP (1) JPS49133195A (it)
AU (1) AU476371B2 (it)
BR (1) BR7306579D0 (it)
CH (1) CH544868A (it)
DE (1) DE2333715A1 (it)
ES (1) ES414398A1 (it)
FR (1) FR2198518A5 (it)
GB (1) GB1385827A (it)
IT (1) IT993771B (it)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3959996A (en) * 1974-06-04 1976-06-01 Antivols Simplex S.A. Anti-theft device for automobile vehicles
FR2429692A1 (fr) * 1978-08-28 1980-01-25 Champion Spark Plug Co Dispositif antivol
US4328688A (en) * 1979-02-13 1982-05-11 Arman S.P.A. Antitheft device for motor vehicles
US5457973A (en) * 1991-04-18 1995-10-17 Strattec Security Corporation Axially activated system for a key lock
FR2847537A1 (fr) * 2002-11-21 2004-05-28 Valeo Securite Habitacle Antivol perfectionne pour vehicule automobile destine, en particulier, a commander le verrouillage d'une colonne de direction de vehicule
CN100357060C (zh) * 2005-07-28 2007-12-26 赖军 带计算机控制的锁芯自动装配组立机及其装配方法
US20110226025A1 (en) * 2008-11-27 2011-09-22 Alpha Corporation Steering lock device
CN106836980A (zh) * 2017-03-28 2017-06-13 韦俊杨 一种弹子防盗锁头

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2749158C3 (de) * 1977-11-03 1980-09-25 Rudolf 6000 Frankfurt Eichenauer Lenkschloß für Kraftfahrzeuge
FR2467116A1 (fr) * 1979-10-12 1981-04-17 Sodex Magister Perfectionnements aux antivols pour vehicules automobiles
US4478061A (en) * 1981-03-30 1984-10-23 Taboola Pty. Limited Cylinder lock
EP0063428B1 (en) * 1981-03-30 1986-02-05 Taboola Pty. Limited Method of forming a key
JPS5971855U (ja) * 1982-11-06 1984-05-16 志摩金属産業有限会社 ピンタンブラ−を千鳥状に配置したシリンダ−錠
GB2182089B (en) * 1985-10-25 1989-12-13 Lowe & Fletcher Ltd Lock and key and method of operating lock
CN1085286A (zh) * 1992-09-28 1994-04-13 石淳民 保密、保险、报警机械锁
AT404857B (de) * 1994-11-15 1999-03-25 Evva Werke Zylinderschloss mit zylinderkern und zylindergehäuse sowie flachschlüssel
FR2788477B1 (fr) 1999-01-15 2001-02-16 Valeo Securite Habitacle Antivol de direction de vehicule automobile
DE102014116376A1 (de) * 2014-11-10 2016-05-12 ABUS August Bremicker Söhne KG Schließsystem, Schlüssel und Schlüsselrohling
CN111877872B (zh) * 2020-08-12 2021-12-07 泉州台商投资区昇一科技有限公司 一种隐蔽式防盗预警锁具

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2083161A (en) * 1934-10-29 1937-06-08 Gilpin Autolock Corp Auto lock
US2588230A (en) * 1947-04-09 1952-03-04 Harry F George Tumble lock
US2687638A (en) * 1950-08-08 1954-08-31 Clyde G Abernathy Cylinder lock
US3261187A (en) * 1964-09-15 1966-07-19 Eichenauer Rudolf Steering column and ignition lock for motor vehicles

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2083161A (en) * 1934-10-29 1937-06-08 Gilpin Autolock Corp Auto lock
US2588230A (en) * 1947-04-09 1952-03-04 Harry F George Tumble lock
US2687638A (en) * 1950-08-08 1954-08-31 Clyde G Abernathy Cylinder lock
US3261187A (en) * 1964-09-15 1966-07-19 Eichenauer Rudolf Steering column and ignition lock for motor vehicles

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3959996A (en) * 1974-06-04 1976-06-01 Antivols Simplex S.A. Anti-theft device for automobile vehicles
FR2429692A1 (fr) * 1978-08-28 1980-01-25 Champion Spark Plug Co Dispositif antivol
US4328688A (en) * 1979-02-13 1982-05-11 Arman S.P.A. Antitheft device for motor vehicles
US5457973A (en) * 1991-04-18 1995-10-17 Strattec Security Corporation Axially activated system for a key lock
FR2847537A1 (fr) * 2002-11-21 2004-05-28 Valeo Securite Habitacle Antivol perfectionne pour vehicule automobile destine, en particulier, a commander le verrouillage d'une colonne de direction de vehicule
CN100357060C (zh) * 2005-07-28 2007-12-26 赖军 带计算机控制的锁芯自动装配组立机及其装配方法
US20110226025A1 (en) * 2008-11-27 2011-09-22 Alpha Corporation Steering lock device
CN106836980A (zh) * 2017-03-28 2017-06-13 韦俊杨 一种弹子防盗锁头

Also Published As

Publication number Publication date
IT993771B (it) 1975-09-30
AU5946573A (en) 1975-02-27
FR2198518A5 (it) 1974-03-29
DE2333715A1 (de) 1974-03-14
GB1385827A (en) 1975-03-05
ES414398A1 (es) 1976-02-01
CH544868A (de) 1973-11-30
JPS49133195A (it) 1974-12-20
BR7306579D0 (pt) 1974-08-29
AU476371B2 (en) 1976-09-16

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