Modular manipulation arm

Details Modular manipulation arm Modular manipulation arm

1989-03-01

1991-01-29

Spar, Robert J.

Material or article handling

Vertically swinging load support

Grab

74479, 294 88, 901 22, 901 28, B25J 1700

Patent

active

049882597

ABSTRACT:
A modular manipulation arm formed from successive elements, each of which can pivot relative to the preceding one about a pivot axis coinciding with the axis of the element in question, and can pivot relative to the following one about a pivot axis which meets the axis of the element in question obliquely. These pivotings are obtained by means of rotary jacks which cause a drive-shaft portion to rotate relative to the corresponding element and which immobilize it in the selected position. The jacks are each associated with a distributor, itself preferably controlled by a low-power electric motor. The connection between successive elements preferably comprises a cardan joint linking the elements and oblique bearing surfaces at the end of the drive-shaft portions.

REFERENCES:
patent: 4552504 (1985-11-01), Nakada et al.
patent: 4561816 (1985-12-01), Dingess
patent: 4641251 (1987-02-01), Inoue
patent: 4665558 (1985-05-01), Burke
patent: 4683406 (1987-07-01), Ikeda et al.

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