Rotary shafts – gudgeons – housings – and flexible couplings for ro – Coupling accommodates drive between members having... – Tripod coupling
Patent
1987-12-01
1989-11-21
Stodola, Daniel P.
Rotary shafts, gudgeons, housings, and flexible couplings for ro
Coupling accommodates drive between members having...
Tripod coupling
464120, 464132, 464905, F16D 320
Patent
active
048819239
ABSTRACT:
Arms (2) of a tripod element (1) are in force-transmitting relation in the circumferential direction and in mobile relation in the axial direction, with rolling tracks (9) provided longitudinally inside a bowl (10), through the medium of roller segments (6,6a, 6b). The latter have a toric outer surface (8) in rolling contact with the tracks (9) which have a corresponding transverse radius of curvature, and an inner spherical surface (3) which is in ball-joint relation to spherical regions (3) of the arms (2). When the joint operates in contraction-extension, each roller segment (6) slides around the spherical regions (3) and rolls in the tracks (9) until, in an extreme position, the two roller segments (6a, 6b) associated with each arm abut against each other by their circumferential ends (14). Utilized for reducing the number of component parts of the joint and eliminating friction between points whose relative paths have turning back points.
REFERENCES:
patent: 4167860 (1979-09-01), Sakaguchi et al.
patent: 4565540 (1986-01-01), Orain
Glaenzer Spicer
Stodola Daniel P.
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