ROTATION DRIVING MECHANISM, IMAGE READING DEVICE, AND IMAGE FORMING APPARATUS

• Main Authors: HORIKAWA TOSHIYUKI, TADA KAORU, ANDO TAKAYUKI, HAGIWARA GENTA, IMAKI DAISUKE, YODA YASUNOBU, NARAI SATOSHI, NAGANO TATSUAKI, ISHIDA MASATOSHI, OSANAI YOHEI
• Format: Patent
• Language: English; Japanese
• Published: 04.10.2018
• Subjects: CONVEYING; HANDLING THIN OR FILAMENTARY MATERIAL; HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS,CABLES; PACKING; PERFORMING OPERATIONS; STORING; TRANSPORTING

PROBLEM TO BE SOLVED: To improve assemblability of a rotation driving mechanism which drives and rotates by transmitting only rotation driving force of one rotation direction, of the rotation driving force of a rotation member in the driving side to a rotation member in the driven side.SOLUTION: A rotation relay member which transmits only rotation driving force of one rotation direction to a rotation member in the driven side has: a housing part which is provided so as to rotate integrally with the rotation member in the driven side; and a cylindrical one way clutch which is provided in the inner side of the housing part. Further, a contact part between a rotation member in the driving side and an axis is constructed so as to make both of the rotation member and the axis rotate as synchronizing so that the rotation driving force of the rotation member in the driving side is transmitted to the inner side of the one way clutch via the axis. The rotation member in the driving side has a boss part which is rotatably held in a support hole that is formed to a holding member. A portion of the axis that supports the rotation member in the driving side and an inner wall face of a penetration hole of the rotation member in the driving side are formed so that the axis and the rotation member in the driving side rotate integrally.SELECTED DRAWING: Figure 7 【課題】駆動側の回転部材の回転駆動力のうち一回転方向の回転駆動力のみを被駆動側の回転部材に伝達して回転駆動する回転駆動機構の組立性を向上させる。【解決手段】一回転方向の回転駆動力のみを被駆動側の回転部材に伝える回転中継部材は、被駆動側の回転部材と一体的に回転するように設けられたハウジング部と、ハウジング部の内周側に設けられた円筒状のワンウェイクラッチとを有する。また、駆動側の回転部材の回転駆動力が軸を介してワンウェイクラッチの内周側に伝達されるよう駆動側の回転部材と軸との接触部を両者が連動して回転するように構成した。駆動側の回転部材は、保持部材に形成された支持孔に回転自在に保持されたボス部を有する。軸の前記駆動側の回転部材を支持している部分及び駆動側の回転部材の貫通孔の内壁面は、軸及び駆動側の回転部材が一体的に回転するように形成されている。【選択図】図７