Automatic transmission shift selector mechanism

Details Automatic transmission shift selector mechanism Automatic transmission shift selector mechanism

1985-06-03

1986-09-23

Herrmann, Allan D.

Machine element or mechanism

Control lever and linkage systems

Multiple controlled elements

74473R, 74476, G05G 506

Patent

active

046128204

ABSTRACT:
A shift lever mechanism for use with a vehicle automatic transmission. A pivoting lever supports an upwardly spring biased plunger for fore and aft travel in a detent slot. The detent slot is formed in a cylindrical plate portion formed substantially concentric with the transverse pivot axis of the lever. The plunger is made from plastic material and is formed with a pair of transverse wall portions each having a plurality of mirror image step-up blocks. The slot includes a series of interconnected notches having progressively decreasing widths in both its fore and aft directions from a central dual mode notch. The notches define locating edges which successively contact and position the upwardly biased plunger step-up blocks during either fore or aft travel from the central notch to define a plurality of modes for the transmission.

REFERENCES:
patent: 2917941 (1959-12-01), Wittren
patent: 3998109 (1976-12-01), O'Brien
patent: 4398433 (1983-08-01), Sonns

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