US 12,455,001 B2
Crank case structure
Toru Kisaichi, Tokyo (JP); and Hirokazu Tanaka, Tokyo (JP)
Assigned to HONDA MOTOR CO., LTD., Tokyo (JP)
Filed by HONDA MOTOR CO., LTD., Tokyo (JP)
Filed on Mar. 26, 2024, as Appl. No. 18/616,197.
Claims priority of application No. 2023-051509 (JP), filed on Mar. 28, 2023.
Prior Publication US 2024/0328501 A1, Oct. 3, 2024
Int. Cl. F16H 57/031 (2012.01); F16H 57/02 (2012.01)
CPC F16H 57/031 (2013.01) [F16H 2057/0203 (2013.01); F16H 2057/02065 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A crank case structure adapted to a crank case that houses a crankshaft of a power unit, comprising:
a crank case cover attached to a side surface of the crank case;
a push rod that is disposed parallel to the crankshaft and reciprocates to disengage a clutch, and
a clutch drive unit that reciprocates the push rod, wherein
a through hole, through which the push rod passes, is formed within an area of a sealing surface, the sealing surface is formed at a peripheral border and interface between the crank case and the crank case cover, and
the clutch drive unit is attached to the crank case cover.