| 摘要 |
PURPOSE:To prevent a gear from being disengaged by varying the spring constant of the first support member supporting the engine body of a power unit to a car body side from that of the second support member supporting a transmission to the car body side. CONSTITUTION:A power unit with an engine body 2 and a transission, etc. being combined in one body is installed horizontally in relation to a car body, and the first support member 10' supporting the engine body 2 to the car body side through an elastic body and the second support member 11' supporting the transmission to the car body side through an elastic body 15a are arranged. Both members 10', 11' are installed horizontally in relation to the car body, and the spring constant of the elastic body 15a for the support member 11' in the longitudinal direction of the car body is set larger than that for the support member 10'. Accordingly, the vibration amplitude of the transmission supported by the support member 11' in the longitudinal direction of the car body is made smaller than that of the engine body supported by the support member 10' in the longitudinal direction of the car body, thus the quantity of movement is made small when the power unit is vibrated horizontally, thereby the gear can be prevented from being disengaged. |
