Machine element or mechanism – Control lever and linkage systems – Multiple controlled elements
Patent
1975-09-15
1977-04-19
Herrmann, Allan D.
Machine element or mechanism
Control lever and linkage systems
Multiple controlled elements
74476, G05G 502, G05G 912
Patent
active
040180999
ABSTRACT:
A transmission shift lever assembly having a manually operated shift lever, pivotally mounted by a sliding saddle block connection on a shift shaft for transverse selecting movement between first, second and third neutral positions and rotating the shift shaft to these neutral positions and pivotally mounted for limited selecting movement in a pivot bracket pivotally mounted for shifting movement on the housing for fore and aft shifting movement conjointly with the pivot bracket from any neutral position in either direction to a drive position without turning movement. Cooperating blocking and unblocking cams on the shift lever and a spring-centered rotary inhibitor acting on a selecting movement of the shift lever from second neutral position to first neutral position to rotate the rotary inhibitor to unblocking position permitting shifting movement of the shift lever to either first or reverse drive positions and acting on a shift from first drive position to first neutral position to rotate the rotary inhibitor to blocking position blocking shift movement to reverse drive position and compelling selecting movement to second neutral position.
REFERENCES:
patent: 1250355 (1917-12-01), Robinson et al.
patent: 1886848 (1932-11-01), Tenney
patent: 1951876 (1934-03-01), Lapsley
patent: 2172663 (1939-09-01), Manning
patent: 2892358 (1959-06-01), Backus et al.
patent: 3354741 (1967-11-01), Johnston, Jr. et al.
patent: 3364779 (1968-01-01), Cambria
patent: 3496797 (1970-02-01), Stott et al.
patent: 3499345 (1970-03-01), Hobbins et al.
O'Brien Patrick H.
Zabritski William J.
General Motors Corporation
Heiter A. M.
Herrmann Allan D.
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