Title:
RESIN GEAR
Document Type and Number:
WIPO Patent Application WO/2019/244309
Kind Code:
A1
Abstract:
This resin gear 1 is provided with an annular metal bushing 3, and an annular resin member 7 which has tooth shapes 7a formed in the outer periphery. The metal bushing 3 and the resin member 7 are arranged so as to be capable of relative rotation in the direction of rotation of the resin gear 1. Between the metal bushing 3 and the resin member 7, spaces K1 interposed between the outer peripheral surface 3o of the metal bushing 3 and the inner peripheral surface 7i of the metal resin 7 are formed arranged along the direction of rotation. Elastic members 5 are arranged inside the spaces K1. In the cross-section along the radial direction of the resin gear 1, the spaces K1 and the elastic members 5 have a first part in which the distance between the outer peripheral surface 3o and the inner peripheral surface 7i is a first distance L1, a second part in which said distance is a second distance L2 different from the first difference L1, and a third part in which said distance is a third distance L3 different from the first distance L1. The first part is disposed between the second part and the third part in the axial direction of the resin gear 1.
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Inventors:
MORIO YOICHI (JP)
AOYAGI TATSUYA (JP)
AOYAGI TATSUYA (JP)
Application Number:
PCT/JP2018/023687
Publication Date:
December 26, 2019
Filing Date:
June 21, 2018
Export Citation:
Assignee:
HITACHI CHEMICAL CO LTD (JP)
International Classes:
F16H55/14
Foreign References:
| JP2017089778A | 2017-05-25 | |||
| US20020142881A1 | 2002-10-03 | |||
| CN104500693A | 2015-04-08 | |||
| JPS63126656U | 1988-08-18 | |||
| JPS6119159U | 1986-02-04 | |||
| JP2017015100A | 2017-01-19 |
Other References:
See also references of EP 3812623A4
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
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