Mechanical shaft joint boot

Details Mechanical shaft joint boot Mechanical shaft joint boot

1986-04-18

1988-03-15

Ward, Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

74 182, 403 50, F16J 304, F16J 1552

Patent

active

047308346

ABSTRACT:
A mechanical shaft joint boot made of a resin comprises a bellows having four to seven crests between a large-diameter ring and a small-diameter ring, in which a crest excluding the first crest between the large-diameter ring and the center of the bellows has the maximum top curvature radius. By providing this structure, the thicknesses of these crests are made uniform and elongation-compression distortion is restrained from being concentrated at their tops. The widening of the tops of the crests also restrains any kinking phenomenon which may be produced. Therefore, the durability of the tops of these crests is increased and the durability of the boot as a whole is hence also increased.

REFERENCES:
patent: 3704894 (1972-12-01), Didzuhn
patent: 3995502 (1976-12-01), Jones
patent: 4224808 (1980-09-01), Jehrke
patent: 4278262 (1981-07-01), Mizutani et al.

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