Title:
POWER TRANSMISSION DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/161978
Kind Code:
A1
Abstract:
This power transmission device (1) has: a motor (2); a first planetary reduction gear (4) that is connected to the downstream side of the motor (2); a second planetary reduction gear (5) that is connected to the downstream side of the first planetary reduction gear (4); a differential device (6) that is connected to the downstream side of the second planetary reduction gear (5); drive shafts (8A, 8B) that are connected to the downstream side of a differential gear; and a differential gear case (60). The drive shaft (8B) is disposed so as to pass through the inner diameter side of a rotor core (21), the inner diameter side of a sun gear (41) of the first planetary reduction gear (4), and the inner diameter side of a sun gear (51) of the second planetary reduction gear (5). A cylindrical section (552), that is a portion of the differential gear case (60) and is positioned between the first planetary reduction gear (4) and the second planetary reduction gear (5) which are aligned in a rotating axis X direction, is supported on the inner circumferential side of an intermediate cover (14) by means of a bearing (B3).
Inventors:
OSHIDARI TOSHIKAZU (JP)
Application Number:
PCT/JP2019/044221
Publication Date:
August 13, 2020
Filing Date:
November 12, 2019
Export Citation:
Assignee:
JATCO LTD (JP)
International Classes:
F16H1/46; F16H48/08; F16H48/40; F16H57/037
Foreign References:
| JP2005125920A | 2005-05-19 | |||
| JP2001330111A | 2001-11-30 | |||
| JP2019074207A | 2019-05-16 | |||
| JP2013221566A | 2013-10-28 | |||
| JP2016089860A | 2016-05-23 | |||
| JP2018103676A | 2018-07-05 |
Other References:
See also references of EP 3922881A4
Attorney, Agent or Firm:
KOBAYASHI, Hiromichi et al. (JP)
Download PDF: