Homokinetic universal joint

Rotary shafts – gudgeons – housings – and flexible couplings for ro – Coupling accommodates drive between members having... – Coupling transmits torque via radially spaced ball

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Details

464906, F16D 322

Patent

active

043773850

ABSTRACT:
A universal joint has two shafts, axially restrained, but pivotable from a common point. One shaft end is in the form of a thick-walled hollow sphere. Two axially extending grooves are cut into the wall facing each other in a circumferentially opposed relationship to form a first set. The other shaft end is in the form of a spherical bowl having a central ball. The inside surface of the bowl and the surface of the ball define an annular spherical cavity into which the hollow sphere nests. Two axially extending grooves are cut, one in each surface, in a radially opposed relationship to form a second set. Each set of grooves positively determines the line path that the center of an enclosed ball will travel. In the assembled joint, the line paths are in mirror image relationship and always intersect in the homokinetic plane. The ball, being enclosed by each set is forced to occupy the intersection. The number of balls used can be any number, odd or even.

REFERENCES:
patent: 1522351 (1925-01-01), Weiss
patent: 1524161 (1925-01-01), Weiss
patent: 1832794 (1931-11-01), Shepard
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patent: 2286182 (1942-06-01), Amberg
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patent: 3478538 (1969-11-01), Heimler
patent: 3802221 (1974-04-01), Kimata
patent: 4091641 (1978-05-01), Welschof

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