SPEED REDUCTION MECHANISM AND MOTOR WITH SPEED REDUCER

Title:

SPEED REDUCTION MECHANISM AND MOTOR WITH SPEED REDUCER

Document Type and Number:

WIPO Patent Application WO/2019/077886

Kind Code:

A1

Abstract:

Provided are a speed reduction mechanism and a motor with a speed reducer, which are highly efficient and compact. The present invention is provided with: an eccentric shaft 41 rotated about a motor axis L by the rotational force of a motor section 2 and having an outer peripheral surface 45a having a center O at a position eccentric to the motor axis L; a rocking gear 43 rotatably supported by the outer peripheral surface 45a through a ball bearing 47 and having inner teeth 50b and outer teeth 50a; a ring gear 42 having inner teeth 42a which mesh with the outer teeth 50a of the rocking gear 43 and which is concentric with the motor axis L; and an output section 44 having outer teeth 53a which mesh with the inner teeth 50b of the rocking gear 43 and which is concentric with the motor axis L. The range of meshing between the outer teeth 50a of the rocking gear 43 and the inner teeth 42a of the ring gear 42, and at least part of the range of meshing between the inner teeth 50b of the rocking gear 43 and the outer teeth 53a of the output section 44 overlap each other in a radial direction.

Inventors:

SAITO TATSUYUKI (JP)
WATANABE TETSUYA (JP)

Application Number:

PCT/JP2018/031733

Publication Date:

April 25, 2019

Filing Date:

August 28, 2018

Export Citation:

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Assignee:

MITSUBA CORP (JP)

International Classes:

F16H1/32; F16H57/023; H02K7/116

Foreign References:

JP2014081068A	2014-05-08
JP370692Z1
JPS4212453Y1	1967-07-13
JP2014081068A	2014-05-08

Other References: