Gearshift device for a semiautomatically shiftable change-speed

Details Gearshift device for a semiautomatically shiftable change-speed Gearshift device for a semiautomatically shiftable change-speed

1996-06-28

1998-09-15

Herrmann, Allan D.

Machine element or mechanism

Gearing

Interchangeably locked

74473R, F16H 5904

Patent

active

058063684

ABSTRACT:
In a gearshift device for a semiautomatically shiftable change-speed gearbox of a motor vehicle, comprising a driver-operated clutch and a gearshift lever, movable only in a single shift lane, by means of which various shifter forks which are operable through an electromagnetically actuatable preselector device and act on synchronizers in the change-speed gearbox can be actuated. The gearshift lever is in the form of a tilting gearshift lever which always returns to its starting position; the shifting movement of the gearshift lever can be transferred by way of a gearshift linkage or a gearshift cable to a shifter slide (3) which is guided linearly in the direction transverse to a shifter shaft (1) of the change-speed gearbox; and the shifter slide (3), guided by means of upper and lower guide rails (4 and 5), cooperates with one of two transfer levers (9 and 11) by way of an upper or a lower pin-and-slot connection (22/21 and 19/18 respectively); and the shifter shaft (1) carries a fixed shifter hub (10) having a selector sleeve (17) fitted axially movably thereon which is slidable by means of an electromagnetically operable preselector device so as to come into driving connection with a clutch tooth system (14 and 15) on the respective transfer lever (9 and 11) and convert a tilting shift movement of the gearshift lever into one of two possible turning movements of the shifter shaft (1).

REFERENCES:
patent: 4570765 (1986-02-01), Makita
patent: 5566579 (1996-10-01), Willford et al.

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