Power-assisted gear-shift mechanism for manual transmission

Machine element or mechanism – Gearing – Follow-up mechanism

Patent

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Details

74473R, 91374, 91378, G05G 916, F15B 910

Patent

active

047427248

ABSTRACT:
A power-assisted gear shift mechanism for a manual transmission includes a lateral casing mounted on a transmission housing, a first lateral shaft rotatably mounted within the casing and being operatively connected to a manual shift lever to be rotated in shifting operation of the shift lever, and a second lateral shaft in the form of a hollow shaft rotatably and axially slidably mounted on the first lateral shaft and being operatively connected to the manual shift lever to be axially moved in selecting operation of the shift lever, the second lateral shaft being integrally provided with a shift-and-select lever which extends into an interior of the transmission housing to be selectively engaged with a plurality of shift heads in axial movement of the second lateral shaft. The gear-shift mechanism is associated with a hydraulic power cylinder assembly which is integrally connected to one end of the lateral casing to provide a hydraulic power assist in accordance with operation torque applied to the first lateral shaft in shifting operation of the manual shift lever.

REFERENCES:
patent: 2926539 (1960-03-01), Leonard
patent: 2926635 (1960-03-01), Leonard et al.
patent: 3470759 (1969-10-01), Labat
patent: 4287784 (1981-09-01), Cedendahl
patent: 4485726 (1984-12-01), Inoue

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