Two speed gear drive with reversible input and unidirectional ou

Details Two speed gear drive with reversible input and unidirectional ou Two speed gear drive with reversible input and unidirectional ou

1983-01-17

1985-02-26

Herrmann, Allan D.

Machine element or mechanism

Rotary member or shaft indexing, e.g., tool or work turret

Preselected indexed position

74810, 192 4892, F16H 552, F16D 4104

Patent

active

045011699

ABSTRACT:
A gear drive has an input shaft driven by a variable speed, reversible hydraulic motor. The input shaft mounts one of two one-way clutches. The second one-way clutch is mounted on a quill output shaft disposed about the input shaft and connected to the input shaft by reduction gearing. The two one-way clutches are joined together and to a stub shaft. Rotation of the motor in one direction will cause one of the clutches to engage to drive the stub shaft in one speed range while rotation of the motor in the opposite direction will cause the other clutch to engage to drive the stub shaft in a second speed range.

REFERENCES:
patent: 1140132 (1915-05-01), Dorsey
patent: 2473250 (1949-06-01), Hoffman
patent: 2694939 (1954-11-01), Schmitter
patent: 2836085 (1958-05-01), Snyder
patent: 2903901 (1959-09-01), MacDonald
patent: 3361010 (1968-01-01), Miller
patent: 3832914 (1974-09-01), Pinfield

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