Patent ID: 8205517

Claim:
A motor-driven actuator comprising: a motor with an output shaft, a worm attached to said output shaft, and a rotation member equipped with a worm wheel that mates with said worm inside a case; a first bearing member disposed opposingly to a direction of thrust of said output shaft projecting from said motor and equipped with a regulating face to which a front portion of a top end of said output shaft abuts, and shifted by biasing force of a spring so as to push said output shaft toward said motor; a second bearing member having an abutting face which abuts a rear end of said output shaft, temporarily housed in said case and a recess which abuts a rear end of said output shaft, housed at a temporary, first position; a motor cover to hold said motor at a prescribed position in said case, said motor cover having a fixed portion to prevent said first bearing member from being shifted, integrated into said case, and a bearing holding portion to push said second bearing member from the temporary, first housing position to a second housing position.