Title:
動力伝達装置
Document Type and Number:
Japanese Patent JP7350452
Kind Code:
B2
Abstract:
To improve lubrication efficiency in a power transmission device.SOLUTION: A power transmission device 1 has a drive shaft 9, a differential mechanism 5 connected to the drive shaft 9, a differential case 50 that stores the differential mechanism 5, a pinion shaft 44 supported by the differential case 50, a stepped pinion gear 43 that has the pinion shaft 44 as an axis, and a sun gear 41 that engages with a large-diameter gear portion 431 of the stepped pinion gear 43. A first case portion 6 of the differential case 50 has a coupling beam 62 (column portion) adjacent to the stepped pinion gear 43 in a circumferential direction. On an inner peripheral surface 631 of a base portion 63 configuring the coupling beam 62, an oil path 637 supplying a lubricant to an engaging portion of the large-diameter gear portion 431 of the stepped pinion gear 43 and the sun gear 41.SELECTED DRAWING: Figure 9
Inventors:
Takaya Kagami
Application Number:
JP2019240054A
Publication Date:
September 26, 2023
Filing Date:
December 30, 2019
Export Citation:
Assignee:
JATCO Ltd.
International Classes:
F16H57/04; B60K17/12; B60K17/16; F16H48/08; F16H48/40; H02K7/116
Domestic Patent References:
| JP8240254A | ||||
| JP2015086951A | ||||
| JP2018080785A | ||||
| JP2018189193A |
Attorney, Agent or Firm:
Naohiko Takehara
Yuko Nakajima
Hideyuki Kawaguchi
Yuko Nakajima
Hideyuki Kawaguchi
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