Title:
IN-WHEEL MOTOR DRIVE DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/073979
Kind Code:
A1
Abstract:
This in-wheel motor drive device (21) is provided with a motor (28), a wheel bearing (53), and a speed reducer (38) which connects the motor and the wheel bearing. The speed reducer (38) is a parallel shaft gear speed reducer provided with: a speed reducer input shaft (Sin) which rotates integrally with a rotational shaft (27) of the motor (28), and is provided with an input gear (34); a speed reducer output shaft (Sout) which rotates integrally with a rotating ring (an inner ring (41)) of the wheel bearing (53), and is provided with an output gear (37); and an intermediate shaft (Sm) which is provided with a small-diameter intermediate gear (36) which meshes with the output gear (37), and a large-diameter intermediate gear (35) which is provided on the same axis as the small-diameter intermediate gear. A circumscribed circle of the large-diameter intermediate gear (35) and a pitch circle of a plurality of rolling elements (42) of the wheel bearing (53) overlap when viewed from the axial direction.
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Inventors:
TAIKOU SHINYA (JP)
TAMURA SHIRO (JP)
UOZUMI TOMOHISA (JP)
TAMURA SHIRO (JP)
UOZUMI TOMOHISA (JP)
Application Number:
PCT/JP2016/084711
Publication Date:
April 26, 2018
Filing Date:
November 24, 2016
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
B60K7/00
Foreign References:
| JP2016181954A | 2016-10-13 | |||
| JPH0781436A | 1995-03-28 |
Other References:
See also references of EP 3530510A4
Attorney, Agent or Firm:
SHIROMURA Kunihiko et al. (JP)
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