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Title:
TRANSMISSION DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/013994
Kind Code:
A1
Abstract:
Provided is a transmission device with which the lubricity of a differential mechanism is improved without using a pump. The present disclosure is a transmission device comprising a differential case and a differential mechanism disposed inside the differential case. The differential mechanism has a first pinion gear and a second pinion gear, and a first side gear and a second side gear. The differential case has an accommodating part, a first sleeve coupled to the accommodating part, a second sleeve coupled to the accommodating part, an oil discharge groove that extends from an outer end part of the first sleeve to the inside of the accommodating part, and an oil introduction groove that extends from an outer end part of the second sleeve to the inside of the accommodating part. The oil discharge groove reaches an inside space of the accommodating part on a side further radially outside than the first side gear, and the width of the oil discharge groove increases toward the outer end part of the first sleeve.

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Inventors:
OYAIZU KAZUMA (JP)
NIIMI HIROKI (JP)
Application Number:
PCT/JP2022/027908
Publication Date:
January 18, 2024
Filing Date:
July 15, 2022
Export Citation:
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Assignee:
MUSASHI SEIMITSU KOGYO KK (JP)
International Classes:
F16H57/04
Domestic Patent References:
WO2022054135A12022-03-17
Foreign References:
JP2021025570A2021-02-22
JP2020142774A2020-09-10
JP2015105730A2015-06-08
Attorney, Agent or Firm:
NAGOYA INTERNATIONAL PATENT FIRM (JP)
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