Image reading apparatus and image forming apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Jun 2, 2020
Grant Date -
May 23, 2019
app pub date -
Jan 18, 2019
filing date -
Feb 10, 2014
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
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.
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