Communications: electrical – Land vehicle alarms or indicators – Of burglary or unauthorized use
Patent
1988-07-05
1989-08-08
Crosland, Donnie L.
Communications: electrical
Land vehicle alarms or indicators
Of burglary or unauthorized use
340429, 340542, 307 103, 180173, 180287, 200 6164, 70416, 70379R, 70DIG49, 70DIG51, B60R 2500, E05B 910
Patent
active
048557102
ABSTRACT:
In a burglarproof system for an automotive vehicle, a door key cylinder arranged at a vehicle door includes a cylindrical body and a rotor accommodated therein. An acting section provided at the rotor extends radially from an axis thereof. A door key switch arranged in the vicinity of the door key cylinder detects the acting section to output a key-operation detection signal, when the rotor is angularly moved by turning operation of a key to bring a door locking mechanism to an unlocked position. A door lock switch detects in which one of the locked and unlocked positions the locking mechanism is. A stealing detector is provided for outputting a stealing detection signal when the stealing detector does not receive the key-operation detection signal from the door key switch, but receives the lock-releasing detection signal from the door lock switch. A burglarproof unit executes operation for a burglarproof in response to the stealing detection signal.
REFERENCES:
patent: 3936673 (1976-02-01), Kelly et al.
patent: 4035791 (1977-07-01), Katayama
patent: 4225008 (1980-09-01), Colell et al.
patent: 4635035 (1987-01-01), Ratzabi
Ikeuchi Hiroshi
Kikuchi Hideya
Crosland Donnie L.
Diesel Kiki Co. Ltd.
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