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:
Jun. 06, 2006
Filed:
Aug. 05, 2003
Takashi Koase, Nagano-ken, JP;
Eiichi Miyashita, Nagano-ken, JP;
Yasuhiko Yoshihisa, Nagano-ken, JP;
Masaaki Tsuda, Kanagawa-ken, JP;
Takashi Koase, Nagano-ken, JP;
Eiichi Miyashita, Nagano-ken, JP;
Yasuhiko Yoshihisa, Nagano-ken, JP;
Masaaki Tsuda, Kanagawa-ken, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A belt driving apparatus has a motor for generating the driving force, a toothed driving pulley rotating by the driving force, an endless toothed belt wound on the pulley, wherein a first surface of the toothed belt has teeth corresponding to teeth of the pulley and a second surface of the toothed belt is substantially smooth, an auxiliary roller for holding the toothed belt in a gap defined by the pulley and the auxiliary roller, a roller holding unit for holding the pulley and the auxiliary roller to be able to respectively rotate on axes of the pulley and the auxiliary roller and maintaining the gap between the pulley and the auxiliary roller and an urging member for urging the roller holding unit in a direction to the toothed belt around the pulley in order for the auxiliary roller hold by the roller holding unit to provide a tension to the toothed belt.