SWING-TYPE SPEED REDUCER - UNIV YAMANASHI

Title:

SWING-TYPE SPEED REDUCER

Document Type and Number:

WIPO Patent Application WO/2021/075218

Kind Code:

A1

Abstract:

[Problem] To provide a swing-type speed reducer that has a large crossing angle, and that can be further miniaturized compared to conventional speed reducers. [Solution] Provided is a swing-type speed reducer 1 comprising: a main body 10; an input shaft 20 that is rotatably held in the main body 10; a precession body 30 that precesses; a swinging body 40 that engages with the precession body 30 and is swung by the precession; and an output shaft 50 that is rotated by the swing of the swinging body 40. In the present invention, a precession annular groove 34 for precession of the precession body 30 and a swinging annular groove 33 for swinging the swinging body 40 are provided on the surface of a spherical portion 31. Thereby, in comparison to a conventional case where the grooves are provided on the inner peripheral surface of a member, the region where the grooves can be machined is increased, and the device can be further miniaturized.

Inventors:

TERADA HIDETSUGU (JP)
NAGAI TAKESHI (JP)

Application Number:

PCT/JP2020/035827

Publication Date:

April 22, 2021

Filing Date:

September 23, 2020

Export Citation:

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Assignee:

UNIV YAMANASHI (JP)
AD ROBO CO LTD (JP)

International Classes:

B25J17/00; F16H25/06

Foreign References:

JP2003240008A	2003-08-27
JP2003278875A	2003-10-02
JP3790715B2	2006-06-28
JP3711338B2	2005-11-02