| 摘要 |
PROBLEM TO BE SOLVED: To provide an actuator for an electric parking brake system which can effectively reduce noise.SOLUTION: An actuator for an electric parking brake system includes: an outer housing; a motor; a planetary gear mechanism and a belt-wheel mechanism that are received in the outer housing; and a vibration isolation member. The belt-wheel mechanism includes a driving wheel, a follower wheel, and a transmission belt. The driving wheel is connected with the motor. The follower wheel is connected with the planetary gear mechanism. The vibration isolation member has a first spacer fixed to the driving wheel via the motor, a second spacer fixed to the follower wheel, and a buffering element disposed between the second spacer and the outer housing. The second spacer is disposed above and attached to the first spacer. The vibration isolation member defines the center-to-center distance between the driving wheel and the follower wheel, and absorbs vibrations from the motor and the planetary gear mechanism.SELECTED DRAWING: Figure 2 |
