| 主权项 |
1. A power tool comprising:
a housing; a motor disposed in the housing; an output spindle received at least partially in the housing; a transmission disposed in the housing and configured to selectively transmit torque from the motor to the output spindle; a clutch assembly disposed between the transmission and the output spindle, the clutch assembly including
a clutch adjustment ring configured to move axially relative to the housing while being rotated relative to the housing,a spring retainer disposed axially rearward of the clutch adjustment ring, the spring retainer coupled for rotation together with the clutch adjustment ring and configured to remain substantially axially stationary relative to the housing when rotated;a spring disposed between the clutch adjustment ring and the spring retainer;a clutch face coupled to a portion of the transmission;a locking member disposed between the spring retainer and the clutch face, the locking member configured to transfer a holding force exerted by the spring to the clutch face,wherein rotation and axial movement of the clutch adjustment ring alters the holding force of the spring to select a clutch setting among a plurality of different clutch settings such that, for each clutch setting, when an output torque exceeds the holding force, torque transmission from the transmission to the output shaft is effectively interrupted. |
