Title:
STRAIN WAVE GEAR DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/249355
Kind Code:
A1
Abstract:
A strain wave gear device (1) comprises an internal gear (2) integrated with an inner ring. A bolt hole (27) is formed in the internal gear (2). The bolt hole (27) includes a bolt passage hole part (28), and a screw hole part (29) extending in the direction of an axial line (1a), continuously from the bolt passage hole part (28). The screw hole part (29), to which a bolt-fastening force is applied, is formed at a location away in the direction of the axial line (1a) from a location adjacent to a radially outer side of an internal gear (20). Deformation, occurring during fastening of a bolt, at a portion in which the internal gear (20) is formed can be reduced, and adverse effects caused by the deformation such as a decrease in the accuracy of engagement or meshing of the internal gear (2) and an external gear (3) can be inhibited.
Inventors:
MATSUZAWA KOTARO (JP)
HIRABAYASHI HIDEKI (JP)
KOBAYASHI SYUHEI (JP)
OKUHARA HIDEKI (JP)
HIRABAYASHI HIDEKI (JP)
KOBAYASHI SYUHEI (JP)
OKUHARA HIDEKI (JP)
Application Number:
PCT/JP2021/020067
Publication Date:
December 01, 2022
Filing Date:
May 26, 2021
Export Citation:
Assignee:
HARMONIC DRIVE SYSTEMS (JP)
International Classes:
F16H1/32
Domestic Patent References:
| WO2015001582A1 | 2015-01-08 |
Foreign References:
| JPH09250610A | 1997-09-22 | |||
| JP2005291237A | 2005-10-20 | |||
| JPH09291983A | 1997-11-11 |
Attorney, Agent or Firm:
YOKOZAWA Shiro (JP)
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