US3877265A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Theft protection device with cylinder lock, particularly steering lock for motor vehicles
Assignee: Valeo Neiman SA
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Filing: 1974-02-04
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Granted: 1975-04-15
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Expires: 1994-02-04
Abstract
Abstract A theft protection device, particularly for a steering lock for motor vehicles which comprises a lock cylinder core housed in a lock cylinder housing, said lock cylinder core being axially displaceable with respect to said housing, a key opening defined by displaceable means which are displaceable against said core when the key is inserted to effect axial displacement, said core biased toward said key opening by a coil spring, a controller cylinder disposed in axial alignment with said core and fixed thereto; said core and said cylinder rotatable in said housing, said controller cylinder containing a tongue member carried on an internally positioned spring mounted against a shoulder, said tonque projecting from said controller cylinder and engageable with a cam of a latch which engages said controller cylinder whereby when said tongue engages said cam said latch is held in an unlocked position by said controller cylinder. There is particularly disclosed a theft protection device wherein the latch further comprises spring means for urging the latch into locked position and the controller cylinder comprises an eccentric member, the latch has an extension member housing a spring which urges a protruding member against a face of the controller cylinder so as to position the controller cylinder and core toward the key opening, the eccentric member engaging the extension upon revolution of said core and said controller cylinder whereby upon axial displacement of said controller cylinder from entry of a key, said protruding member is displaced within said extension member and said latch is removed upon revolution from a locked position to an unlocked position.
Inventors
- 👤 Guenter Schaumberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:31
CPC Classifications
B; B60; B60R; B60R25/00; B60R25/01; B60R25/02; B60R25/021; B60R25/0211; B60R25/02115; B60R25/02126; B60R25/02128; B60R25/02131; Y; Y10; Y10T; Y10T70/00; Y10T70/50; Y10T70/5889; Y10T70/5956; Y10T70/70; Y10T70/7441; Y10T70/7486; Y10T70/7508; Y10T70/7559; Y10T70/7576; Y10T70/80; Y10T70/8432; Y10T70/8649
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
247 words
In a theft protection device with a cylinder lock comprising a lock cylinder core which is locked in the parking position in a lock cylinder housing which can be turned in said lock cylinder housing after axial displacement while in said parking position by the full insertion of a key for said device, said device having a controller cylinder coupled to said lock cylinder core in alignment therewith which controller cylinder is engageable by a latch in the parking position and which latch can be disengaged after axial displacement of said lock cylinder core and controller cylinder by revolution of said lock cylinder core and controller cylinder in a driving position, said latch held disengaged in a stop position by said controller cylinder and, in the unlocked position, is held in the disengaged position by said controller cylinder until said controller cylinder is axially displaced toward the key entrance, the improvement comprising a spring means on which said lock cylinder core is mounted and which urges said cylinder core in axial displacement when the key is withdrawn, spring means longitudinally mounted within said controller cylinder carrying a protruding tongue which tongue engages in unlocked position a cam on said latch whereby to hold said latch in disengaged position, said spring means biasing said controller cylinder whereby disengagement of said tongue from said cam urges said controller cylinder axially toward the key entrance when the key is withdrawn and effects disengagement of said latch with said controller cylinder.
Claim 2
Dependent Claim
247 words
In a theft protection device with a cylinder lock comprising a lock cylinder core which is locked in the parking position in a lock cylinder housing which can be turned in said lock cylinder housing after axial displacement while in said parking position by the full insertion of a key for said device, said device having a controller cylinder coupled to said lock cylinder core in alignment therewith which controller cylinder is engageable by a latch in the parking position and which latch can be disengaged after axial displacement of said lock cylinder core and controller cylinder by revolution of said lock cylinder core and controller cylinder in a driving position, said latch held disengaged in a stop position by said controller cylinder and, in the unlocked position, is held in the disengaged position by said controller cylinder until said controller cylinder is axially displaced toward the key entrance, the improvement comprising a spring means on which said lock cylinder core is mounted and which urges said cylinder core in axial displacement when the key is withdrawn, spring means longitudinally mounted within said controller cylinder carrying a protruding tongue which tongue engages in unlocked position a cam on said latch whereby to hold said latch in disengaged position, said spring means biasing said controller cylinder whereby disengagement of said tongue from said cam urges said controller cylinder axially toward the key entrance when the key is withdrawn and effects disengagement of said latch with said controller cylinder.
Claim 3
Dependent Claim
43 words
An apparatus according to claim 1, wherein said cam housing inclined surface on which said tongue slides whereby when said tongue slides over said cam said spring biasing said controller cylinder is cocked and disposed for axial displacement on withdrawal of the key.
Claim 4
Dependent Claim
54 words
A device according to claim 2, wherein said spring means carrying said tongue is a compression spring arranged between a pressure member fastened to said controller cylinder, which is immovable in the axial direction relative to said controller cylinder and said tongue, said tongue being movable in the axial direction in the controller cylinder.
Claim 5
Dependent Claim
148 words
A theft protection device, particularly for a steering lock for motor vehicles, which comprises a lock cylinder core housed in a lock cylinder housing, said lock cylinder core being axially displaceable with respect to said housing, a key opening defined by displaceable means which are displaceable against said core when the key is inserted to effect axial displacement, said core biased toward said key opening by a coil spring, a controller cylinder disposed in axial alignment with said core and affixed thereto, said core and said controller cylinder rotatable in said housing, said controller cylinder containing a tongue member carried by an internally positioned spring mounted against a shoulder, said tongue projecting from said controller cylinder and engageable with a cam of a latch which engages said controller cylinder whereby when said tongue engages said cam said latch is held in an unlocked position by said controller cylinder.
Claim 6
Dependent Claim
148 words
A theft protection device, particularly for a steering lock for motor vehicles, which comprises a lock cylinder core housed in a lock cylinder housing, said lock cylinder core being axially displaceable with respect to said housing, a key opening defined by displaceable means which are displaceable against said core when the key is inserted to effect axial displacement, said core biased toward said key opening by a coil spring, a controller cylinder disposed in axial alignment with said core and affixed thereto, said core and said controller cylinder rotatable in said housing, said controller cylinder containing a tongue member carried by an internally positioned spring mounted against a shoulder, said tongue projecting from said controller cylinder and engageable with a cam of a latch which engages said controller cylinder whereby when said tongue engages said cam said latch is held in an unlocked position by said controller cylinder.
Claim 7
Dependent Claim
114 words
A theft protection device according to claim 4, wherein said latch further comprises springing means for urging said latch into locked position, said controller cylinder comprising an eccentric member, said latch has an extension member housing a spring which urges a protruding portion against a face of said controller cylinder so as to position the controller cylinder and core toward the key opening, said eccentric engages said extension member upon revolution of said core and said controller cylinder whereby upon axial displacement of said controller cylinder from entry of a key, said protruding member is displaced within said eXtension and said latch is removed upon revolution from a locked position to an unlocked position.
References Cited (Backward Citations)
US2221082A
Cited
US3724244A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-04-14 | 1978-10-14 | 1979-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-14 | 1982-10-14 | 1983-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-14 | 1986-10-14 | 1987-04-15 | $7700.00 | Window Closed / Lapsed |