Transmission shifter with park lock

Details Transmission shifter with park lock Transmission shifter with park lock

1979-12-14

1981-12-08

Herrmann, Allan D.

Locks

Special application

For automotive vehicles

70254, 70257, 74475, 74526, 74535, 74538, B60R 2506, E05B 6512, G05G 508

Patent

active

043041124

ABSTRACT:
An automotive transmission shifter and park lock is disclosed which includes a base for mounting the shifter in an automotive vehicle. A shift lever is pivotable with respect to the base and a park lock hook is pivotally mounted on the shift lever. The base includes means for engaging the park lock hook comprising an aperture disposed in the base. The park lock hook is normally spring biased upwardly out of engagement with the aperture disposed on the base. Means for connecting the lock hook to an ignition switch locked park lock cable is provided whereby once the park lock cable is locked stationary by the ignition switch, the park lock hook is automatically pivoted into engagement with the aperture in the base upon an attempt to pivot the shift lever out of the park position. This hook-type lockout of the present invention generates the principal lockout forces in the shifter itself and the shifter and hook are sufficiently sturdy to prevent distortion and insure that the vehicle transmission cannot be moved from the park position once the ignition is turned off.

REFERENCES:
patent: 868907 (1907-10-01), Coltman
patent: 1262200 (1918-04-01), Jensen
patent: 1303800 (1919-05-01), Jennings
patent: 1800678 (1931-04-01), Craig
patent: 1818997 (1931-08-01), Martel
patent: 2156355 (1939-05-01), Sandberg
patent: 3465559 (1969-09-01), Rhodes et al.
patent: 3998109 (1976-12-01), O'Brien
patent: 4138905 (1979-02-01), Konishi
patent: 4232511 (1980-11-01), Kimberlin
patent: 4235123 (1980-11-01), Simancik et al.

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