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:
Sep. 19, 1995

Filed:

Apr. 22, 1994
Applicant:
Inventors:

Takeshi Matsuo, Osaka, JP;

Masayuki Kakuta, Osaka, JP;

Tsuyoshi Nagao, Osaka, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
355309 ; 271198 ;
Abstract

An automatic document conveyor for an image processing machine having an endless belt with a driven roller and a follower roller. The endless belt mechanism includes a front frame and a rear frame which are coupled together a distance apart in the direction substantially perpendicular to the longitudinal direction of the endless belt. First and second movable frames are coupled to first ends of each of the front frame and the rear frame and support the follower roller. A third movable frame is coupled to the second end of the front frame. The driven roller is supported by the third movable frame and the second end of the rear frame, and a drive source is coupled to the end of the driven roller adjacent the rear frame. Springs urge the three movable frames in directions tensioning the endless belt. The first and second movable frames can be moved against their springs to release the tension of the follower roller on the endless belt. The third movable frame can be moved against its spring to release the tension of the driven roller on the endless belt while retaining the coupling of the endless belt with the drive source.


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