Locks – Systems – Operation and control
Patent
1988-02-04
1989-12-12
Gall, Lloyd A.
Locks
Systems
Operation and control
292201, 2923363, E05B 6536
Patent
active
048859222
ABSTRACT:
The locking drive for a central locking system of a motor vehicle comprises a support which carries an electric motor, the direction of rotation of which is reversible. Guided for movement on the support are two force-transmitting parts of a gear mechanism which transmits the locking forces, a first force-locking part being adapted to be driven by the electric motor while a second force-locking part can be driven manually, for example by means of a mechanical lock. The second force-transmitting part can be locked at least in one of its extreme positions and relative to the support by means of a locking member. The locking member is controlled via the first force-transmitting part which, for this purpose, is coupled via a dead travel coupling having given clearance to the second force-transmitting part. The locking drive is in particular suitable for the locking of a trunk lock of the motor vehicle so that the trunk lock can be opened when the central locking system is locked without having to unlock the system again in order to perform this function.
REFERENCES:
patent: 4290634 (1981-09-01), Gelhard
patent: 4342209 (1982-08-01), Kleefeldt
patent: 4440006 (1984-04-01), Kleefeldt
patent: 4502718 (1985-03-01), Sasaki et al.
patent: 4674781 (1987-06-01), Reece et al.
patent: 4708378 (1987-11-01), Ingenhoven
Fichtel & Sachs AG
Gall Lloyd A.
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