Title:
車両用動力伝達装置
Document Type and Number:
Japanese Patent JP5760693
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a power transmission device for a vehicle capable of restraining one part of vibrations in a peripheral direction of an electric motor housing case and a coupling flange of a case.SOLUTION: A coupling flange 38b of a first case 38 has a weight-increasing part 70 locally projecting toward an outer periphery from a portion including a center position C of a first distance P1 between a pair of fastening bolts 66 positioned on both sides of a terminal board 60 in a circumferential direction and penetrating through the coupling flange 38b, when seen in a direction orthogonal to a mating face 44. In this manner, even if one part of an electric motor housing case 38a and the coupling flange 38b in the circumferential direction between a pair of the fastening bolts 66 positioned on both circumferential sides of the terminal board 60 is formed comparatively long and flat, when a center portion at the circumferential portion, i.e., one part in the circumferential direction vibrates in a radial direction, a mass of a portion that serves as a peak of resonance is increased. Therefore, vibration of one part in the circumferential direction can be restrained.
Inventors:
Shingo Kato
Eiji Ito
Takeshi Hiroshi
Eiji Ito
Takeshi Hiroshi
Application Number:
JP2011117653A
Publication Date:
August 12, 2015
Filing Date:
May 26, 2011
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
H02K5/24; B60K6/26; B60K6/405; B60K6/445; H02K5/00; B60L50/16
Domestic Patent References:
| JP2001078373A | ||||
| JP9322469A | ||||
| JP9226392A |
Foreign References:
| US5585681 |
Attorney, Agent or Firm:
Haruyuki Ikeda
Kojiro Ikeda
Kojiro Ikeda