OPEN/CLOSE MEMBER DRIVE DEVICE AND OPEN/CLOSE DEVICE

WIPO Patent Application WO/2020/195649

A1

The present invention makes it possible to change the rotation direction of an output shaft in an open/close member drive device and to simplify assembly work thereof.　Provided is an open/close member drive device 1 comprising: an output shaft 2 which protrudes from a case 10; a motor 3 which is a drive source; a transmission mechanism 44 which transmits the rotation of the motor 3 to the output shaft 2; and an assist spring 5 which impels the output shaft 2. The transmission mechanism 4 comprises: an output gear 45 which rotates integrally with the output shaft 2; and a fourth gear 44 which is a front-stage gear meshing with the output gear 45. A first teeth part T1 and a second teeth part T2 of the output gear 45 are symmetrical shapes with a line L2, which connects a center C1 of the output gear 45 with a center C2 of the fourth gear 44 which is the front-stage gear, as a line of symmetry. Accordingly, the rotation direction of the output shaft 2 can be changed by changing only the winding direction of the assist spring 5 without changing the shape or an origin position RA of the output shaft 2.

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ISHIMIZU AKIO (JP)
QIAN YIJUN (CN)

PCT/JP2020/009183

October 01, 2020

March 04, 2020

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NIDEC SANKYO CORP (JP)
NIDEC SANKYO ZHEJIANG CORP (CN)

A47K13/12; A47K13/10; F16H1/06

JP2017211031A	2017-11-30
JP2004344255A	2004-12-09
JP2014084923A	2014-05-12

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