Title:
DIFFERENTIAL DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/195059
Kind Code:
A1
Abstract:
The present invention increases the stiffness and heat dissipation of a differential case in a differential device in which the differential case is made of light alloy and gears of a differential mechanism are made of steel. A plurality of screw hole bosses (31) having screw holes (28) into which a plurality of bolts (30) fastening a ring gear are screwed, and a first rib (32) integrally connecting the screw hole bosses (31) with each other protrude from a side surface of a flange (11), and a plurality of second ribs (33) integrally connecting the screw hole bosses (31) and a first bearing boss (13) are formed on an outer surface of a differential case (4). A first thick-walled part (40) including a first gear bearing part (21) bearing the back of a pinion gear (19) is formed on a circumferential wall of a differential case body (10), and a second thick-walled part (13b) including a second gear bearing part (22) bearing the back of a side gear (20) is formed on the first bearing boss (13).
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Inventors:
ODA HIROHISA (JP)
Application Number:
PCT/JP2020/002041
Publication Date:
October 01, 2020
Filing Date:
January 22, 2020
Export Citation:
Assignee:
MUSASHI SEIMITSU KOGYO KK (JP)
International Classes:
F16H48/08; F16H48/40
Foreign References:
| JP2015081630A | 2015-04-27 | |||
| JPH08320059A | 1996-12-03 | |||
| JP2010265933A | 2010-11-25 | |||
| JP2013104516A | 2013-05-30 | |||
| JPS5032725U | 1975-04-09 |
Attorney, Agent or Firm:
SHIMODA, Yo-ichiro et al. (JP)
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