Patent US3949581A successfully refreshed from Google Patents.
US3949581A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Steering lock assembly for diesel motor vehicles
Assignee: Toyota Motor Corp
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Filing: 1974-06-14
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Granted: 1976-04-13
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Expires: 1994-06-14
Abstract
Abstract A steering lock assembly for preventing the burglary of diesel motor vehicles. The assembly includes an operating rod coupled to a fuel injection pump for de-activating the pump. The operating rod is axially movable in a guide sleeve and has a recess formed in the lower portion thereof. The assembly also includes a steering lock device actuated by a steering lock actuating device for preventing rotation of the steering shaft of a vehicle. The operating rod and steering lock actuating device are connected through a rocker arm and a wire attached to one end of the rocker arm so that when the operating rod is pulled to an engine stop position, the steering lock device is actuated by the steering lock actuating device to prevent rotation of said steering shaft.
Inventors
- 👤 Shigeo Toyama
- 👤 Yutaka Tomizu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:06
CPC Classifications
B; B60; B60R; B60R25/00; B60R25/01; B60R25/02; B60R25/021; B60R25/02142; F; F02; F02B; F02B3/00; F02B3/06; Y; Y10; Y10T; Y10T70/00; Y10T70/50; Y10T70/5889; Y10T70/5894; Y10T70/5898; Y10T70/5912; Y10T70/5916; Y10T70/5956; Y10T70/5973; Y10T70/5978
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
253 words
A steering lock assembly for a diesel motor vehicle having a steering shaft, said steering lock assembly comprising: first locking means movable into a plurality of positions, means operable in response to movement of said first locking means for locking the steering shaft when said locking means is in one of said plurality of positions, an engagement member displaceable with said first locking means, engine shutdown means axially displaceable into a position for shutting down the engine, said engine shutdown means being rotatable in the engine shutting down position, means defining a recess in said engine shutdown means, second locking means engageable with said recess for axially locking said engine shutdown means, wire means connected with said second locking means to be movable therewith, said wire means being operatively related to said engagement member, means defining a slot in said engagement member for selectively engaging said wire means, and slot being configured to engage said wire means to prevent movement of said first locking means into said one position for locking the steering shaft when the engine is operating, said engagement member being configured to engage said wire means to prevent movement of said engine shutdown means out of the position for shutting down the engine when the first locking means is in said one position for locking the steering shaft, and said recess being configured to disengage said second locking means from said recess to release said engine shutdown means from its axially locked position when said engine shutdown means is rotated.
Claim 2
Dependent Claim
253 words
A steering lock assembly for a diesel motor vehicle having a steering shaft, said steering lock assembly comprising: first locking means movable into a plurality of positions, means operable in response to movement of said first locking means for locking the steering shaft when said locking means is in one of said plurality of positions, an engagement member displaceable with said first locking means, engine shutdown means axially displaceable into a position for shutting down the engine, said engine shutdown means being rotatable in the engine shutting down position, means defining a recess in said engine shutdown means, second locking means engageable with said recess for axially locking said engine shutdown means, wire means connected with said second locking means to be movable therewith, said wire means being operatively related to said engagement member, means defining a slot in said engagement member for selectively engaging said wire means, and slot being configured to engage said wire means to prevent movement of said first locking means into said one position for locking the steering shaft when the engine is operating, said engagement member being configured to engage said wire means to prevent movement of said engine shutdown means out of the position for shutting down the engine when the first locking means is in said one position for locking the steering shaft, and said recess being configured to disengage said second locking means from said recess to release said engine shutdown means from its axially locked position when said engine shutdown means is rotated.
Claim 3
Dependent Claim
95 words
A steering lock assembly for a diesel motor vehicle as claimed in claim 1, further comprising: a guide sleeve, means defining an axial groove in said guide sleeve, said engine shutdown means comprises an operating rod, said operating rod comprising a pin extending radially therefrom, said operating rod being slidably fitted in said guide sleeve with said pin positioned in said axial groove, and said axial groove is configured so that said operating rod is rotatable into the position for shutting down the engine and is axially displaceable out of the engine shutting down position.
Claim 4
Dependent Claim
40 words
A steering lock assembly for a diesel motor vehicle as claimed in claim 2, wherein: said second locking means comprises a rocker and a roller on one end of said rocker, and said roller being biased against said operating rod.
References Cited (Backward Citations)
GB1191444A
Cited
US3797287A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-04-13 | 1979-10-13 | 1980-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-04-13 | 1983-10-13 | 1984-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-04-13 | 1987-10-13 | 1988-04-13 | $7700.00 | Window Closed / Lapsed |