Control device for an automobile vehicle gearbox

Details Control device for an automobile vehicle gearbox Control device for an automobile vehicle gearbox

1988-05-25

1989-08-01

Braun, Leslie A.

Machine element or mechanism

Control lever and linkage systems

Multiple controlled elements

74473R, 74477, F16H 5706

Patent

active

048524212

ABSTRACT:
The control device is of the type in which the movable elements for engaging the gear ratios are shifted by means of parallel slidable yokes (40, 42, 46, 48) on which acts a main control finger member (20) which pivots for alternately sliding each of the yokes in at least one direction and causing the engagement of a gear ratio. According to the invention, the device further comprises an auxiliary control finger member (54) which is capable of pivoting about the axis of the control shaft (12) for sliding a yoke (46) of the two lateral end yokes in a first direction and causing the engagement of the reverse gear ratio, it only being possible to shift the other lateral end yoke (48) by means of the main control finger member (20) in the opposite direction for selecting the forward gear ratio of the highest rank. The other yoke (48) is provided with a ramp (56) with which cooperates the main control finger member (20) when it is shifted in the first direction for causing its lateral disengagement from the other yoke (48) and permitting a driving in rotation of the auxiliary control finger member (54) by driving apparatus interconnecting the two control finger members.

REFERENCES:
patent: 3866488 (1975-02-01), Nakata et al.
patent: 4466306 (1984-08-01), Katayama
patent: 4510818 (1985-04-01), Inui
patent: 4567785 (1986-02-01), Reynolds et al.
patent: 4660434 (1987-04-01), Inui et al.

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