Rotary unit having clutch function

Details Rotary unit having clutch function Rotary unit having clutch function

1995-12-13

1997-09-09

Pitts, Andrea L.

192 clutches and power-stop control

Clutches

Automatic

192 41A, 188 821, F16D 1500, F16D 4106

Patent

active

056646534

ABSTRACT:
A rotary unit with a built-in clutch which is short in its axial length. The rotary unit has an inner member having an outer periphery formed with a raceway groove and a pair of cylindrical surfaces on both sides of the raceway groove, and a cylindrical outer member having an inner periphery formed with a raceway groove and a pair of cylindrical surfaces on both sides of the groove. A retainer mounted between the inner and outer members has a plurality of circumferentially spaced pockets each housing a rolling member and sprag housing recesses provided alternately with the pockets. In each recess is received a sprag having both ends thereof resting on the opposing cylindrical surfaces and biased by a resilient member so that its inner and outer arcuate surfaces contact the cylindrical surfaces. By arranging the sprags and the rolling members alternately with each other in the circumferential direction, it is possible to reduce the entire axial length of the rotary unit.

REFERENCES:
patent: 2113722 (1938-04-01), Dodge
patent: 2268376 (1941-12-01), Dodge
patent: 2307881 (1943-01-01), Dodge
patent: 2342227 (1944-02-01), Swenson
patent: 2365062 (1944-12-01), Dodge
patent: 2407772 (1946-09-01), Dodge
patent: 2408962 (1946-10-01), Swenson et al.
patent: 2412803 (1946-12-01), Dodge
patent: 2423178 (1947-07-01), Dodge
patent: 3006447 (1961-10-01), Irwin
patent: 3022875 (1962-02-01), Davis
patent: 3443672 (1969-05-01), Giese

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