Elastic universal joint

Details Elastic universal joint Elastic universal joint

1997-11-26

1999-06-29

Lillis, Eileen Dunn

Rotary shafts, gudgeons, housings, and flexible couplings for ro

Torque transmitted via flexible element

Nonmetallic element

74492, 464160, F16D 376, B62D 116

Patent

active

059160268

ABSTRACT:
An elastic universal joint is constructed to prevent an interference between a front end surface of a shaft and a front edge of a second arm of a second yoke irrespective of an intersecting angle between two first and second yokes without increasing a size of the first yoke. For this purpose, a concave portion is formed in the front end surface of the shaft, and, in a state where the intersecting angle between the first and second yokes increases and a front edge of the second arm approaches closest to the front end surface thereof, this front edge enters the concave portion. A distance between a cross shaft and the front end surface is reduced corresponding to a depth of the concave portion, and the first yoke is downsized with a smaller weight, correspondingly.

REFERENCES:
patent: 3878695 (1975-04-01), Pitner
patent: 4183258 (1980-01-01), Stephan
patent: 4385897 (1983-05-01), Mallet
patent: 4406640 (1983-09-01), Franklin et al.
patent: 4479786 (1984-10-01), De Bisschop
patent: 4983143 (1991-01-01), Sekine et al.
patent: 5086661 (1992-02-01), Hancock
patent: 5259818 (1993-11-01), Kachi et al.
patent: 5366413 (1994-11-01), Yamaguchi et al.
Abstract and drawings from French Patent 2,614,985, Nov. 1988.

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