Title:
IN-WHEEL MOTOR DRIVE DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/083810
Kind Code:
A1
Abstract:
The present invention makes an in-wheel motor drive device more compact and, as a result, increases the versatility of the drive device and peripheral elements thereof. This in-wheel motor drive device (21) comprises a motor (A), a wheel bearing (C), and a decelerator (B). The decelerator (B) has: an input shaft (35) having rotational driving force input thereto; an output shaft (38) from which rotational driving force is output; at least one intermediate shaft (36) parallel to the input shaft (35) and the output shaft (38); an input gear (30) provided on the input shaft (35); an output gear (34) provided on the output shaft (38); and a large-diameter intermediate gear (31) and a small-diameter intermediate gear (32) provided on the intermediate shaft (36) and having mutually different pitch circle diameters. The input gear (30), the output gear (34), the large-diameter intermediate gear (31), and the small-diameter intermediate gear (32) constitute a power transmission path from the input shaft (35) to the output shaft (38). An idler gear (33) is arranged on this power transmission path.
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Inventors:
TAMURA SHIRO (JP)
Application Number:
PCT/JP2016/084815
Publication Date:
May 11, 2018
Filing Date:
November 24, 2016
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
B60K7/00; F16H1/06; H02K7/116
Domestic Patent References:
| WO2000014857A1 | 2000-03-16 |
Foreign References:
| JP2016070358A | 2016-05-09 | |||
| JP2012201289A | 2012-10-22 | |||
| JP2012214202A | 2012-11-08 | |||
| JP2010261475A | 2010-11-18 | |||
| JP2016076385A | 2016-05-12 |
Attorney, Agent or Firm:
SHIROMURA Kunihiko et al. (JP)
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