Dual mode shifter for automatic transmissions

Details Dual mode shifter for automatic transmissions Dual mode shifter for automatic transmissions

1980-09-22

1983-02-01

Herrmann, Allan D.

Machine element or mechanism

Control lever and linkage systems

Multiple controlled elements

74142, 74473R, 74476, G05G 706, G05G 906

Patent

active

043708978

ABSTRACT:
A shifter having a true ratchet mode for operating between the drive gears, and a gate mode for use in park and reverse. The invention provides a floating pawl at the ends of two links in a three member, four pivot point linkage. This linkage provides the advantages that the operating handle is always engaged and yet permits easy change-over from one mode to the other.

REFERENCES:
patent: 3665775 (1972-05-01), Freeman
patent: 3800614 (1974-04-01), Johnson
patent: 3941008 (1976-03-01), Cambria
patent: 4084448 (1978-04-01), Wolfe

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