US 12,467,529 B2
Power transmission device
Takashi Wakui, Saitama (JP); Motoshi Togasaki, Saitama (JP); Masahiro Imai, Saitama (JP); and Kazuki Sakurai, Saitama (JP)
Assigned to HONDA MOTOR CO., LTD., Tokyo (JP)
Filed by HONDA MOTOR CO., LTD., Tokyo (JP)
Filed on Aug. 7, 2024, as Appl. No. 18/796,894.
Claims priority of application No. 2023-128805 (JP), filed on Aug. 7, 2023.
Prior Publication US 2025/0052316 A1, Feb. 13, 2025
Int. Cl. F16H 57/04 (2010.01); F16H 57/021 (2012.01); F16H 57/02 (2012.01)
CPC F16H 57/0483 (2013.01) [F16H 57/021 (2013.01); F16H 57/0423 (2013.01); F16H 57/0424 (2013.01); F16H 57/045 (2013.01); F16H 57/0457 (2013.01); F16H 57/0471 (2013.01); F16H 2057/02052 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A power transmission device comprising:
a first rotation member;
a first rotation shaft supporting the first rotation member; and
a case rotatably supporting the first rotation shaft, wherein
the case includes
a rotation member accommodation chamber accommodating the first rotation shaft and the first rotation member,
a first storage portion provided at a bottom portion of the rotation member accommodation chamber and configured to store a lubricating liquid such that a portion of the first rotation member is immersed therein, and
a second storage portion provided above the first rotation shaft in the rotation member accommodation chamber and configured to store the lubricating liquid,
the second storage portion is formed by a side surface of the case and a guide member separate from the case,
the guide member has:
a bottom surface portion extending in a rotation axis direction of the first rotation member; and
a side surface portion that stands on the bottom surface portion intersecting with the bottom surface portion and faces the side surface of the case, and
an upper portion of the guide member is opened, wherein
the power transmission device further comprises:
a second rotation member; and
a second rotation shaft extending parallel to the first rotation shaft and supporting the second rotation member,
the second storage portion extends from above the first rotation shaft to above the second rotation shaft, and
the bottom surface portion of the guide member has a weir portion standing on the bottom surface portion between the first rotation member and the second rotation member.