Self-contained modular joint, notably for robots

Details Self-contained modular joint, notably for robots Self-contained modular joint, notably for robots

1976-06-11

1978-06-27

Vrablik, John J.

Machine element or mechanism

Gearing

3 12, 214 1CM, B25J 1700, A61F 104, F16H 3300

Patent

active

040967662

ABSTRACT:
Self-contained modular joint adapted to interconnect two machine elements to permit a relative rotation of less than one revolution therebetween, wherein the first element comprises a strap consisting of a pair of wing-like extensions encompassing the second element in such a manner that said second element can pivot between said two wing extensions, each wing extension of said strap being provided with a bore concentric to the axis of said relative rotation, said bore being adapted to be engaged by members of revolution each adapted to center and position in the axial direction an inner race of rolling contact bearings capable of absorbing axial and radial efforts, the outer race of each one of said bearings being carried by a member of revolution centered and secured to said second element so as to constitute between said two elements a joint free of both axial and radial play, wherein one of said two members of revolution secured to said second element has fitted thereon the toothed annulus of a reduction gearing while the other element of said reduction gearing is secured to said member of revolution rigid with the wing extension of said strip which is opposite said member of revolution rigid with said second element, said joint being further characterized in that said member of revolution also supports a control motor adapted to drive said reduction bearing in such a manner that all the essential component elements of the joint are distributed along the axis of rotation about which one machine element can pivot in relation to the other element to an extent of less than one revolution.

REFERENCES:
patent: 3033059 (1962-05-01), Melton et al.
patent: 3435705 (1969-04-01), Musser
patent: 3883900 (1975-05-01), Jerard et al.
patent: 3987498 (1976-10-01), Mason

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