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Patent Searching and Data


Title:
INTERNAL-MESHING PLANETARY GEAR DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/126854
Kind Code:
A1
Abstract:
An internal-meshing planetary gear device. An internal tooth gear (2) is provided with internal teeth (21) and is fixed to an outer ring (62A). A planetary gear (3) is provided with external teeth which partially mesh with the internal teeth (21). A plurality of internal pins (4), in the state of being respectively inserted into a plurality of internal pin holes (32) formed on the planetary gear (3), revolve within the internal pin holes (32) and rotate relative to the internal tooth gear (2). An inner ring (61A) comprises a first inner ring (601) and a second inner ring (602), which are opposite each other in a direction parallel to a rotation axis (Ax1) and have opposite surfaces (601A, 602A) that come in contact with each other. The first inner ring (601) has a plurality of holding holes (611), through which the plurality of internal pins (4) respectively penetrate in the direction parallel to the rotation axis (Ax1). Each of the plurality of internal pins (4) is held in the inner ring (61A) in a state of being able to rotate.

Inventors:
LIN WENJIE (JP)
WANG GANG (JP)
MINEGISHI KIYOJI (JP)
GUO ZIMING (JP)
ISAJI TSUYOSHI (JP)
Application Number:
PCT/CN2021/077117
Publication Date:
June 23, 2022
Filing Date:
February 20, 2021
Export Citation:
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Assignee:
SMART IP INFORMATION SERVICE SHENZHEN LTD (CN)
International Classes:
F16H1/32
Foreign References:
CN110005759A2019-07-12
CN103133527A2013-06-05
CN103133523A2013-06-05
CN1266957A2000-09-20
JP2010107053A2010-05-13
CN105387069A2016-03-09
JP2006046596A2006-02-16
JP4746907B22011-08-10
JP2020085017A2020-06-04
JP2003074646A2003-03-12
Other References:
See also references of EP 4202257A4
Attorney, Agent or Firm:
CHINA PAT INTELLECTUAL PROPERTY OFFICE (CN)
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