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.
Patent No.:
Date of Patent:
Dec. 30, 1997
Filed:
Jul. 17, 1996
Applicant:
Inventors:
Tadamoto Tamai, Fujisawa, JP;
Toshitaka Yamamoto, Hoya, JP;
Assignee:
Sumitomo Heavy Industries, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B25J / ;
U.S. Cl.
CPC ...
4147445 ; 294 864 ; 294104 ; 901 36 ; 901 39 ;
Abstract
An arm member having a folding expansion/contraction mechanism is fixed to a rotary shaft. A support member is rotatively mounted on the distal end of the arm member. This support member maintains a constant relationship with the rotary shaft. An auxiliary support member is mounted on a support shaft fixed to the support member, the auxiliary support member being able to swing. A cam mechanism is provided at rotation portions of the support member and auxiliary support member. The auxiliary support member is swung by this cam mechanism in accordance with a folding expansion/contraction motion of the arm member.