| 摘要 |
Embodiments of clutches for electric tools, and related methods, are disclosed herein. An electric tool may include an electric motor (106), a drive shaft (110) coupled between the electric motor and a cutting instrument (114), and a clutch (108) coupled between the electric motor and the drive shaft. The clutch may include a motor portion (302) having an exterior surface (316), a drive shaft portion (202) having an exterior surface (224) and forming a mated assembly when mated with the motor portion, and a spring (402) around the motor and drive shaft portions. The spring may exert a holding force on the mated assembly, such that rotation of the motor portion in a first direction loosens the spring and reduces the friction holding force until a torque between the motor and drive shaft portions exceeds the holding force, causing rotation of the motor portion to be decoupled from rotation of the drive shaft portion. |
