Title:
TRANSMISSION DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/048941
Kind Code:
A1
Abstract:
A transmission device in which a transmission gear case (in which a carrier of a reduction gear and a differential case are coupled) is supported on a transmission case via a case support bearing, a specific planetary gear part of a planetary gear is arranged on one side of a differential mechanism in an axial direction, and a specific case support bearing is arranged on the other side thereof, wherein an oil passage formation body (T) is provided on an inner wall of a transmission case (10), said oil passage formation body being provided with an oil collection part (Tc) that opens upwards and is capable of collecting lubricating oil splashed up at the periphery of a specific planetary gear part (P1) inside the transmission case (10) in conjunction with rotation of a transmission gear case (20), and an oil reservoir part (Ta) that is continuous with the oil collection part, retains the lubricating oil collected by the oil collection part, and supplies the lubricating oil to a specific case support bearing (Bc2). Thus, lubricating oil slashed up by the specific planetary gear part or the like can be supplied to the specific case support bearing at a distance therefrom, and an oil reservoir surface of the transmission case during transmission can be made lower, thereby increasing transmission efficiency.
Inventors:
ASAI RYOSUKE (JP)
MATSUOKA SHINYA (JP)
BUTTA NAOFUMI (JP)
MATSUOKA SHINYA (JP)
BUTTA NAOFUMI (JP)
Application Number:
PCT/JP2019/035638
Publication Date:
March 18, 2021
Filing Date:
September 11, 2019
Export Citation:
Assignee:
MUSASHI SEIMITSU KOGYO KK (JP)
International Classes:
F16H57/04; F16H1/28
Foreign References:
| JP3287972B2 | 2002-06-04 | |||
| JPH0238562U | 1990-03-14 | |||
| JP2017096325A | 2017-06-01 | |||
| JP2012041947A | 2012-03-01 |
Attorney, Agent or Firm:
OCHIAI & CO. (JP)
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