Totally synchronized manual transmission unit for use in a vehic

Details Totally synchronized manual transmission unit for use in a vehic Totally synchronized manual transmission unit for use in a vehic

1984-06-27

1986-08-12

Hermann, Allan D.

192 clutches and power-stop control

Vortex-flow drive and clutch

With brake

744115, 74475, 74477, B60K 4126, G05G 510, G05G 912

Patent

active

046051090

ABSTRACT:
A gear-shift mechanism for a transmission unit which includes a fork shaft slidably supported in a housing assembly which is selectively shifted from its neutral position to forward and reverse positions, a detent mechanism for selectively retaining the fork shaft in its neutral and shifted positions, a shift head member slidable on the fork shaft, a one-way engagement mechanism for effecting the engagement between the shift head member and the fork shaft during axial displacement of the fork shaft toward and away from its reverse position, and a shift arm member pivotably mounted to the inner wall structure of the housing assembly and linked with the shift head member to retain an idler gear in its neutral position and engage the same with driving and driven gears. The detent mechanism includes a first holder member having a slot in its upper portion and a shaft fixed to the upper side portion of the first holder member and a second holder member fitted into the first holder member. The head portion of the shaft fixed to the first holder member can be engaged with another head portion provided at a select return spring holder. The second holder member retains one of synchronizers in a neutral position when shifted to a reverse speed.

REFERENCES:
patent: 4510818 (1985-04-01), Inui
patent: 4510819 (1985-04-01), Inui

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