Ignition key switch mechanism

Locks – Special application – For automotive vehicles

Reexamination Certificate

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Details

C070S245000, C070S247000

Reexamination Certificate

active

07997107

ABSTRACT:
An ignition key switch mechanism for a vehicle having an automatic or semi-automatic gearbox comprises two solenoids and arranged at right angles to each other between which a slider or lever is disposed. The mechanism locks to prevent turning of the ignition key to the off position and removal of the key. Locking is effected by activating one solenoid to pull the shaft of that solenoid inside the armature of the solenoid. That in turn pulls the slider towards the solenoid and enables a locking pin on the slider to lock the mechanism. As the slider moves toward the solenoid a notch in the slider is brought into line with the shaft of the second solenoid. This shaft enters the notch under spring force to hold the mechanism in the locked position. Unlocking is effected by activating the second solenoid to withdraw the shaft from the notch allowing the first solenoid and the locking pin to return to unlocked positions which in turn permits the key to be turned to the off position and removed.

REFERENCES:
patent: 3559755 (1971-02-01), Pond
patent: 3763956 (1973-10-01), Ruff
patent: 4837567 (1989-06-01), Kleefeldt et al.
patent: 4945740 (1990-08-01), Kawano et al.
patent: 4955935 (1990-09-01), Katayama
patent: 5179868 (1993-01-01), Thibeault
patent: 5255547 (1993-10-01), Burr et al.
patent: 5562568 (1996-10-01), Smale
patent: 6354120 (2002-03-01), Tan et al.
patent: 2003/0115917 (2003-06-01), Rudolph et al.
patent: 42 06 251 (1992-09-01), None
patent: 101 01 983 (2002-07-01), None

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