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:
Sep. 10, 1991
Filed:
Jun. 21, 1990
Applicant:
Inventors:
Yusaku Azuma, Yokohama, JP;
Takeo Tanita, Kawasaki, JP;
Toshihiro Yamamoto, Yokohama, JP;
Shozo Kasai, Kawasaki, JP;
Masateru Yasuhara, Kawasaki, JP;
Yasuhiro Sawada, Chofer, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B25J / ; B25J / ; F16H / ;
U.S. Cl.
CPC ...
4147445 ; 74206 ; 74209 ; 340679 ; 901-9 ; 901 25 ;
Abstract
A rotational driving apparatus with frictional engagement includes a base, a rotating member having rigidity and axially supported on the base, at least one frictional roller having rigidity and at least one driving roller which are in rolling contact with the rotating member, a motor for rotating the driving roller, and a pressing mechanism for pressing the frictional and driving rollers against the rotating member, thereby transmitting a driving force of the driving roller to the rotating member to rotate it.