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:
Aug. 14, 2001

Filed:

Feb. 25, 2000
Applicant:
Inventors:

Tsukasa Ono, Kanagawa, JP;

Masaaki Tomimizu, Saitama, JP;

Assignee:

Other;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65G 2/344 ; B65G 3/916 ; B65H 5/02 ; G03D 1/300 ; G03G 1/520 ;
U.S. Cl.
CPC ...
B65G 2/344 ; B65G 3/916 ; B65H 5/02 ; G03D 1/300 ; G03G 1/520 ;
Abstract

During an initial setting period, if there is a tendency for a belt to move sideways due to tolerance when components are assembled in the initial setting, inclination in the axial direction of a driven roller can be changed after the components are assembled, to adjust degree of tension at both end portions in the transverse direction of the belt wound at a driven roller. Accordingly, the tendency for the belt to move sideways caused during assembly of the components can be corrected. Further, when there are changes over time (reduced elasticity of the belt, changes in the positioned state of rollers, or the like), sideways movement may occur during operation. However, in these cases, since a tapered auxiliary roller is attached at each of end portions in the axial direction of the rollers so as to be able to rotate relatively to the respective roller that is the base body thereof, when the belt moves sideways onto the auxiliary rollers the belt can be promptly returned to its original position.


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