Biased transmission control shaft

Details Biased transmission control shaft Biased transmission control shaft

1981-01-29

1983-07-05

Herrmann, Allan D.

Machine element or mechanism

Control lever and linkage systems

Multiple controlled elements

743375, 74477, G05G 912, G05G 510

Patent

active

043911587

ABSTRACT:
A manual shift transmission having multiple input and output portions is provided with a control having input and output shift rails. A laterally movable control shaft extends axially through cutouts in respective shift rails and carries cams adapted to cooperate with cam follower surfaces on corresponding cutouts to effect rectilinear movement of the shift rails upon rotation of the control shaft. The cams are arranged on the shaft so that the shaft may be positioned to place respective cams in register with the input and output shift rails while all other cams are out of register with the rail cutouts. The shift movement of respective output and input shift rails is overlapped during the rotation of the control shaft to decrease the throw of the shift lever. The control shaft is spring biased to provide variable resistance in response to movement of a control lever to enable the operator to determine his position in the shift pattern of the transmission.

REFERENCES:
patent: 3857299 (1974-12-01), Morrison
patent: 4155271 (1979-05-01), Wolfe
patent: 4170148 (1979-10-01), Wolfe
patent: 4197760 (1980-04-01), Wolfe
patent: 4299135 (1981-11-01), Gens
Clark Axle and Transmission Divisions, 390-V Transmission Maintenance and Service Manual--5 Speed, Aug. 1978, Section G.

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