Reversible freewheel device

Details Reversible freewheel device Reversible freewheel device

1986-06-23

1987-09-15

Krizmanich, George H.

192 clutches and power-stop control

Clutches

Plural clutch-assemblage

192 35, 192 431, 192 452, 192 51, F16D 4108

Patent

active

046933514

ABSTRACT:
A freewheel device with freewheeling and locking effect in both directions of rotation can be produced easily and inexpensively by the use of conventional sprags designed for use in uni-directional freewheel devices. Two sets of sprags are provided between the inner and the outer raceway of the device, one for each direction of rotation. The sprags are spring loaded for taking positions in which they do not contact one raceway, and a cage which is braked during rotation is provided to be brought in rotation by the sprags and thereby influence the sprags against the spring force to taking a position in which they contact both raceways, the two sets of sprags being alternately engaged or disengaged depending on the direction or rotation of the device.

REFERENCES:
patent: 2427120 (1947-09-01), Blair
patent: 2591993 (1952-04-01), Aijala
patent: 3314510 (1967-04-01), Zlotek
patent: 3907083 (1975-09-01), Nieder
patent: 4284183 (1981-08-01), Brisabois

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