Title:
IN-WHEEL MOTOR DRIVE DEVICE
Document Type and Number:
WIPO Patent Application WO/2015/137068
Kind Code:
A1
Abstract:
An in-wheel motor drive device (21) is provided with a casing (22), the casing (22) holding a motor section (A), a speed reduction section (B), and a bearing section (C) for a wheel. The speed reduction section (B) has: a speed reducer input shaft (25) connected to the rotating shaft (24) of the motor section; and a speed reducer output shaft (28) for transmitting the rotation of the speed reducer input shaft (25), which has been reduced in speed, to the bearing section (C) for a wheel. The speed reducer input shaft (25) is rotatably supported by rolling bearings (37a, 37b). The speed reducer input shaft (25) is formed from case hardening steel and has a hardened layer (H) formed by heat treatment consisting of carburizing, quenching, and tempering.
Inventors:
YUKISHIMA RYOU (JP)
SUZUKI MINORU (JP)
UOZUMI TOMOHISA (JP)
SUZUKI MINORU (JP)
UOZUMI TOMOHISA (JP)
Application Number:
PCT/JP2015/054516
Publication Date:
September 17, 2015
Filing Date:
February 19, 2015
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
YUKISHIMA RYOU (JP)
SUZUKI MINORU (JP)
UOZUMI TOMOHISA (JP)
YUKISHIMA RYOU (JP)
SUZUKI MINORU (JP)
UOZUMI TOMOHISA (JP)
International Classes:
F16H1/32; B60K7/00; F16H57/04
Domestic Patent References:
| WO2011115219A1 | 2011-09-22 |
Foreign References:
| JP2012148725A | 2012-08-09 | |||
| JPS6263653A | 1987-03-20 |
Attorney, Agent or Firm:
SHIROMURA Kunihiko et al. (JP)
Kunihiko Shiromura (JP)
Kunihiko Shiromura (JP)
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