The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 12, 1993

Filed:

Jan. 29, 1992
Applicant:
Inventors:

Mario Orsi, Turin, IT;

Mauro Amparore, Beinasco, IT;

Assignee:

Comau S.p.A., Turin, IT;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B25J / ;
U.S. Cl.
CPC ...
74479 ; 901-2 ; 901 14 ; 901 15 ; 901 19 ; 31856811 ; 414-4 ;
Abstract

A robot wrist with two articulation axes has a first body which is carried at the distal end of the robot arm, a second body which is supported by the first body for rotation about a first axis which intersects the longitudinal axis of the robot arm at right angles, and a third body which is supported by the second body for rotation about a second axis which intersects the first axis at right angles. The second and third bodies are rotated by two electric motors which are mounted on the first body and the second body respectively, with the interposition of 'Harmonic Drive' reduction units of the type in which the output rotor is supported for rotation by a load-bearing element which forms part of the reduction unit.


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