Title:
TRANSMISSION DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/048940
Kind Code:
A1
Abstract:
The present invention provides a transmission device that is obtained by combining a differential gear and a reducer having a two-stage planetary gear, wherein a transmission case (20) has a work window (21w) that opens with such a size as to expose, to the outside of the transmission case (20), the rotational trajectory of at least engagement sections of differential-mechanism constituent gears (43, 44) constituting a differential mechanism (41); and a second planetary gear part (P2) of the reducer (R) and the differential-mechanism constituent gears (43, 44) are arranged in the transmission case (20) such that at least a section of the second planetary gear part (P2) and at least sections of the differential-mechanism constituent gears (43, 44) are opposed to each other via the opening of the work window (21w) and overlap each other in the axial direction. Accordingly, lubricating oil that splatters from the reducer (particularly, the second planetary gear part) can be directly supplied to tooth surfaces of the differential-mechanism constituent gears in the transmission case, and lubricating oil that conversely splatters from the differential-mechanism constituent gears can be directly supplied to the reducer, whereby the lubrication effect for the differential mechanism and the reducer can be increased with a simple structure.
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Inventors:
ASAI RYOSUKE (JP)
MATSUOKA SHINYA (JP)
KATO SHIRYU (JP)
MATSUOKA SHINYA (JP)
KATO SHIRYU (JP)
Application Number:
PCT/JP2019/035637
Publication Date:
March 18, 2021
Filing Date:
September 11, 2019
Export Citation:
Assignee:
MUSASHI SEIMITSU KOGYO KK (JP)
International Classes:
F16H37/08; F16H57/04
Foreign References:
| JPH07293644A | 1995-11-07 | |||
| JP3287972B2 | 2002-06-04 | |||
| US20160252171A1 | 2016-09-01 | |||
| US8049384B2 | 2011-11-01 |
Attorney, Agent or Firm:
OCHIAI & CO. (JP)
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