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Title:
SPEED REDUCER AND SPEED REDUCER-EQUIPPED MOTOR
Document Type and Number:
WIPO Patent Application WO/2021/065293
Kind Code:
A1
Abstract:
A speed reducer (14) comprises a helical gear (20), an eccentric shaft (22), and a slider plate (52). The speed reducer (14) also comprises: a transmission gear (24) that is supported by a first support part (22B1) and that revolves with the rotation of the helical gear (20) together with the eccentric shaft (22), the spinning of the transmission gear being restricted by engagement with the slider plate (52); and an output gear body (30) that rotates as a result of the revolution of the transmission gear 24. The transmission gear (24) is provided with a pair of restricting protrusions (24E) that protrude toward the slider plate (52) and have engaging surfaces (S1) that come into contact with the slider plate (52) while having been positioned facing in the radial direction of the transmission gear (24). The surfaces (S2) of the restricting protrusions (24E) on the side opposite the slider plate (52) are formed to be convex toward the side opposite the slider plate (52) as seen from the axial direction of the transmission gear (24).

Inventors:
MARUO KAZUKI (JP)
SAKAI MASAHITO (JP)
SHIMIZU FUMIHIRO (JP)
Application Number:
PCT/JP2020/033064
Publication Date:
April 08, 2021
Filing Date:
September 01, 2020
Export Citation:
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Assignee:
DENSO CORP (JP)
International Classes:
F16H1/10; F16H1/32; H02K7/116
Foreign References:
JP2019062679A2019-04-18
JP2018165531A2018-10-25
Attorney, Agent or Firm:
TAIYO, NAKAJIMA & KATO (JP)
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