192 clutches and power-stop control – Vortex-flow drive and clutch – With brake
Patent
1979-07-16
1981-03-03
Krizmanich, George H.
192 clutches and power-stop control
Vortex-flow drive and clutch
With brake
192 15, 192 38, F16D 6702
Patent
active
042535549
ABSTRACT:
There is disclosed a bi-directional clutch which offers improved reliability. The three main elements are (a) a stationary, planar section having an upstanding circumferential wall, (b) a driving member having a rotatable planar section and an upstanding cylindrical wall around a central bore, the wall having radial slots and being positioned within the circumferential wall of the stationary member, and (c) a hexagonal-shaped member which is to be driven by the driving member, positioned in the bore of the driving member. A plurality of hollow cylindrical rollers are positioned within the slots of the driving member; opposite ends of each roller are adjacent to the planar surfaces of the stationary and driving members. A torque applied to the driving member, in either direction, causes the rollers to move and to bear against the hexagonal-shaped member to drive it. A torque applied to the hexagonal-shaped member, in either direction, causes the rollers to be wedged against the circumferential wall of the stationary member, thereby preventing the hexagonal-shaped member from turning. Should dirt cause the rollers to stick to the faces of the hexagonal-shaped member, the rollers tend to move with it instead of becoming wedged against the circumferential wall of the stationary member. To prevent this from happening, a spring is included within each hollow roller for bearing against the opposed planar sections of the stationary and driving members. The restraining forces thus introduced prevent the rollers from being moved by the hexagonal-shaped member even if they tend to stick to it.
REFERENCES:
patent: 1015861 (1912-01-01), Warner
patent: 2389886 (1945-11-01), Bardega
patent: 3243023 (1966-03-01), Boyden
Krizmanich George H.
Nisenson Technology Corp.
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