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Title:
IN-WHEEL MOTOR DRIVE DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/049802
Kind Code:
A1
Abstract:
An in-wheel motor drive device 21 is formed of an electric motor part A, a reduction gear part B, and a wheel bearing part C, and is provided with a casing 22. The in-wheel motor drive device 21 is characterized in that the casing 22 is made of a light metal, the casing 22 has a fastening structure M that is for components to be attached and that comprises bolts 71, 71", 102 and nuts 72, 103, the bolts 71, 71", 102 have head parts 71a, 71"a, 102a thereof disposed inside the casing 22, and screw parts 71b, 71"b, 102b thereof disposed so as to project outside of the casing 22, and a structure where the bolts 71, 71", 102 are installed is provided with a mechanism for sealing lubricating oil and a mechanism for stopping rotation of the bolts 71, 71", 102.

Inventors:
SUGIURA Saori (1578 Higashikaizuk, Iwata-shi Shizuoka 10, 〒4388510, JP)
TAMURA Shiro (1578 Higashikaizuk, Iwata-shi Shizuoka 10, 〒4388510, JP)
Application Number:
JP2018/032498
Publication Date:
March 14, 2019
Filing Date:
August 31, 2018
Export Citation:
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Assignee:
NTN CORPORATION (3-17, Kyomachibori 1-chome Nishi-ku, Osaka-sh, Osaka 03, 〒5500003, JP)
International Classes:
F16H57/031; B60K7/00; F16H57/029; F16H57/032
Foreign References:
JP2015120401A2015-07-02
JPS555187U1980-01-14
Attorney, Agent or Firm:
SHIROMURA Kunihiko et al. (Ehara Patent Office, 2-15 Bakurou-machi 4-chome, Chuo-ku, Osaka-sh, Osaka 59, 〒5410059, JP)
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