Title:
INTERNAL-MESHING PLANETARY GEAR DEVICE AND ACTUATOR
Document Type and Number:
WIPO Patent Application WO/2022/021863
Kind Code:
A1
Abstract:
Provided are a miniaturized internal-meshing planetary gear device and an actuator. The internal-meshing planetary gear device (1) comprises a bearing member (6), an internally toothed gear (2), a planetary gear (3), and a plurality of inner pins (4). The bearing member (6) is provided with an outer ring (62) and an inner ring (61) disposed on an inner side of the outer ring (62). The inner ring (61) is supported so as to be rotatable relative to the outer ring (62). The internally toothed gear (2) is provided with internal teeth (21) and is fixed to the outer ring (62). The planetary gear (3) is provided with external teeth partially meshing with the internal teeth (21). The plurality of inner pins (4), when in a state of being inserted into a plurality of inner pin holes (32) formed in the planetary gear (3), revolve in the inner pin holes (32) and rotate relative to the internally toothed gear (2). Here, each of the plurality of inner pins (4) is held, in a state where same is capable of rotating, in the inner ring (61). Furthermore, at least one portion of each of the plurality of inner pins (4) is disposed at a position which is the same as that of the bearing member (6) in an axial direction of the bearing member (6).
Inventors:
LIN WENJIE (JP)
WANG GANG (JP)
MINEGISHI KIYOJI (JP)
ISAJI TSUYOSHI (JP)
WANG GANG (JP)
MINEGISHI KIYOJI (JP)
ISAJI TSUYOSHI (JP)
Application Number:
PCT/CN2021/077125
Publication Date:
February 03, 2022
Filing Date:
February 20, 2021
Export Citation:
Assignee:
SMART IP INFORMATION SERVICE SHENZHEN LTD (CN)
International Classes:
F16H1/32
Domestic Patent References:
| WO2009025206A1 | 2009-02-26 |
Foreign References:
| CN110005759A | 2019-07-12 | |||
| CN1266957A | 2000-09-20 | |||
| KR102054257B1 | 2020-01-22 | |||
| CN110748608A | 2020-02-04 | |||
| CN101852269A | 2010-10-06 | |||
| US5123883A | 1992-06-23 | |||
| CN106499778A | 2017-03-15 | |||
| CN110206858A | 2019-09-06 | |||
| CN107850188A | 2018-03-27 | |||
| CN110630694A | 2019-12-31 | |||
| JP2005321071A | 2005-11-17 | |||
| JP2020128086A | 2020-08-27 |
Other References:
See also references of EP 4184034A4
Attorney, Agent or Firm:
CHINA PAT INTELLECTUAL PROPERTY OFFICE (CN)
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