US 11,731,669 B2
Railcar driving bogie
Fumikazu Kounoike, Kakogawa (JP); Yosuke Matsushita, Kobe (JP); Yoshihiro Tamura, Kobe (JP); Yukihiro Sano, Kobe (JP); and Toshifumi Machida, Kobe (JP)
Assigned to KAWASAKI RAILCAR MANUFACTURING CO., LTD., Kobe (JP)
Appl. No. 17/48,510
Filed by KAWASAKI RAILCAR MANUFACTURING CO., LTD., Kobe (JP)
PCT Filed Apr. 5, 2019, PCT No. PCT/JP2019/015072
§ 371(c)(1), (2) Date Oct. 16, 2020,
PCT Pub. No. WO2019/203018, PCT Pub. Date Oct. 24, 2019.
Claims priority of application No. 2018-078185 (JP), filed on Apr. 16, 2018.
Prior Publication US 2021/0163048 A1, Jun. 3, 2021
Int. Cl. B61F 3/04 (2006.01); B61F 5/48 (2006.01); B61F 5/52 (2006.01)
CPC B61F 5/48 (2013.01) [B61F 3/04 (2013.01); B61F 5/52 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A railcar bogie comprising:
a cross beam extending in a car width direction;
a first traction motor supported by a first car longitudinal direction portion of the cross beam;
a second traction motor supported by a second car longitudinal direction portion of the cross beam; and
a coupler (i) arranged under the cross beam and between the first traction motor and the second traction motor, (ii) coupling the first traction motor and the second traction motor to each other, and (iii) configured to cancel out a swinging motion of the first traction motor and a swinging motion of the second traction motor, wherein
the first traction motor is arranged at a first side in the car width direction;
the second traction motor is arranged at a second side in the car width direction;
in a plan view, a swing axis of the first traction motor is inclined relative to the car width direction; and
in the plan view, a swing axis of the second traction motor is inclined relative to the car width direction.