| 摘要 |
A starter motor, for use with an internal combustion engine, comprising an electric motor (14), a shaft (13) rotated by the motor and carrying a pinion assembly (15), a solenoid (22) spaced from said shaft (13) and including an armature (24) movable from a rest position towards an operative position by energisation of an electromagnet winding (23) of the solenoid, and, a lever assembly (28) mounted for pivotal movement about an axis passing between the solenoid (22) and said shaft (13), said lever assembly (28) linking the armature of said solenoid and said pinion assembly such that movement of the armature is transmitted to the pinion assembly to move the pinion assembly axially on said shaft from a rest position towards an operative position, said lever assembly comprising a rigid element (24) supported for pivotal movement about said axis and a resilient element (31) carried by said rigid element (29) and coupled at one end to said armature (24), the end of the lever assembly remote from said solenoid (22) being coupled to said pinion assembly (15), and, said resilient element (31) including a region (39) shaped to flex torsionally in the event of operative movement of said solenoid armature (24) without corresponding movement of the pinion assembly (15), said region (39) being prestressed during construction of the lever assembly in such a direction that the torsional stressing of said region would be increased by said movement of the solenoid armature relative to the pinion assembly. |
