US 11,655,856 B2
Motive power transmission device
Kyosei Nakashima, Aki-gun (JP); and Hiroyuki Asakura, Aki-gun (JP)
Assigned to Mazda Motor Corporation, Hiroshima (JP)
Filed by Mazda Motor Corporation, Hiroshima (JP)
Filed on Mar. 19, 2021, as Appl. No. 17/206,483.
Claims priority of application No. JP2020-086781 (JP), filed on May 18, 2020.
Prior Publication US 2021/0355998 A1, Nov. 18, 2021
Int. Cl. F16F 15/123 (2006.01); F16D 1/10 (2006.01); H02K 7/00 (2006.01); B60K 6/48 (2007.10)
CPC F16D 1/101 (2013.01) [F16F 15/1232 (2013.01); B60K 2006/4825 (2013.01); F16D 2001/103 (2013.01); F16D 2300/22 (2013.01); F16F 2230/0005 (2013.01); F16F 2232/02 (2013.01); H02K 7/006 (2013.01); Y02T 10/62 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A motive power transmission device comprising:
a first motive power transmission member and a second motive power transmission member being rotatably provided in a motive power transmission path from a drive source to a drive wheel and being spline-fitted together; and
a spring retaining member that retains a spring for urging the second motive power transmission member toward one side in a circumferential direction with respect to the first motive power transmission member and is mounted on the first motive power transmission member, wherein
the spring retaining member includes:
a temporarily fixing portion that is temporarily fixed to and mounted on the first motive power transmission member in a first compression state where the spring urges the spring retaining member toward the one side in the circumferential direction with respect to the first motive power transmission member; and
a locking portion that is locked with the second motive power transmission member in a second compression state where when the first motive power transmission member and the second motive power transmission member are spline-fitted together, the spring is compressed more than the first compression state and urges the second motive power transmission member toward the one side in the circumferential direction with respect to the first motive power transmission member,
the first motive power transmission member is provided with a temporarily fixed portion that is temporarily fixed to the temporarily fixing portion,
the second motive power transmission member is provided with a locked portion that is locked with the locking portion, and
the temporary fixing between the first motive power transmission member and the spring retaining member is released, when the second motive power transmission member is spline-fitted to the first motive power transmission member.