Title:
TRANSMISSION DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/048939
Kind Code:
A1
Abstract:
Provided is a transmission device in which a planetary reduction gear and a differential device are combined, wherein a carrier (C) of the reduction gear is configured in a divided manner by a first carrier part (C1) supporting one ends of pivot shafts (33) and a second carrier part (C2) supporting the other ends of the pivot shafts, and has a transmission gear case (20), which is supported by a transmission case and includes a transmission gear case body (21) in which a differential case (40) and the second carrier part are integrated, and the first carrier part, which is joined to one end wall (21A) of said transmission gear case body. A bearing boss part (21b1), which extends toward the sun gear side and rotatably mates with and supports the outer circumferential part of one output shaft (51), is integrally provided on a side surface of the one end wall on the sun-gear side in a protruding manner, the bearing boss part is located at a position overlapping at least a portion of the sun gear in the axial direction, and the outer circumferential part of the bearing boss part mates with a center hole (31h) of the sun gear so as to be rotatable relative thereto. As a result of this configuration, the size of the transmission device in the axial direction can be reduced while increasing the support rigidity of the transmission gear case with respect to the sun gear and the output shaft.
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| JPH094698 | DIFFERENTIAL GEAR UNIT |
| JPH0828655 | DIFFERENTIAL GEAR |
Inventors:
ASAI RYOSUKE (JP)
MATSUOKA SHINYA (JP)
MATSUOKA SHINYA (JP)
Application Number:
PCT/JP2019/035636
Publication Date:
March 18, 2021
Filing Date:
September 11, 2019
Export Citation:
Assignee:
MUSASHI SEIMITSU KOGYO KK (JP)
International Classes:
F16H48/38
Foreign References:
| JP2018128078A | 2018-08-16 |
Attorney, Agent or Firm:
OCHIAI & CO. (JP)
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