Manual transmission gearshift mechanism with reverse inhibitor

Details Manual transmission gearshift mechanism with reverse inhibitor Manual transmission gearshift mechanism with reverse inhibitor

1986-12-22

1988-04-19

Herrmann, Allan D.

Machine element or mechanism

Control lever and linkage systems

Multiple controlled elements

F16H 5706

Patent

active

047381531

ABSTRACT:
A gearshift lock for the shift mechanism of a manually operated multiple speed ratio transmission includes a selector shaft rotatable by a gearshift lever under the control of the vehicle operator, a selector finger movable within slots formed in a base plate, the slots being defined by the various positions of the gearshift lever that correspond to speed ratios of the transmission. A spring-loaded rotatable locking cam mounted on the gate plate cooperates with a finger carried on the selector shafts to prevent backward shifting movement from a forward gear position into the reverse gear position and to guide the selector finger into the adjacent gearshift slot. A base plate pivots on a pin fixed to the gate plate against the force of a legged spring to produce a sensible indication to the vehicle operator when greater force is required to move the gearshift lever.

REFERENCES:
patent: 4275614 (1981-06-01), Okudo et al.
patent: 4297910 (1981-11-01), Myers
patent: 4633728 (1987-01-01), May

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