DRIVING DEVICE, IMAGE READING APPARATUS AND IMAGE FORMING APPARATUS

A driving device is used in an image reading apparatus, and reciprocates a scanning unit for reading an image on an original. The driving device comprises a pull member, a driving pulley which transmits driving force to the pull member, a following pulley which applies tension to the pull member and...

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Bibliographic Details
Main Authors FUKUTOME SHOHICHI, IGUCHI KAZUHIRO, NAKANISHI KENJI, IMOTO MASAHIRO, SUTO YASUHIRO
Format Patent
LanguageEnglish
Published 13.08.2015
Subjects
BLASTING
CINEMATOGRAPHY
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
ENGINEERING ELEMENTS AND UNITS
GEARING
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
HOLOGRAPHY
LIGHTING
MAGNETOGRAPHY
MECHANICAL ENGINEERING
PHOTOGRAPHY
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
THERMAL INSULATION IN GENERAL
WEAPONS
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Summary:A driving device is used in an image reading apparatus, and reciprocates a scanning unit for reading an image on an original. The driving device comprises a pull member, a driving pulley which transmits driving force to the pull member, a following pulley which applies tension to the pull member and a pulley holder having a pulley axis which holds the following pulley rotatably. Then, the pulley axis has a lock pawl capable of locking an upper end portion of the following pulley and canceling engagement with the following pulley by being tilted toward a side of an axial center by elastic deformation. Furthermore, the lock pawl is arranged at a side of a tension acting direction from the pull member to the following pulley except the farthest position from the driving pulley among positions in a circumferential direction of the pulley axis. It is possible to attach and detach the following pulley easily at a time of maintenance or the like.
Bibliography:Application Number: US201514608397