Clutch device

A clutch device comprising:

• an electric actuator unit including
• a rotary electric motor,
• a rotational translation unit configured to convert rotational motion caused by torque from the rotary electric motor into translational motion, and
• a fork configured to be translated by the translational motion of the rotational translation unit;
• and
• a clutch unit including
• a first transmission unit,
• a second transmission unit rotatable relative to the first transmission unit, and
• a dog clutch configured to translate with translation of the fork and mesh with the first transmission unit to allow transmission of torque between the first transmission unit and the second transmission unit, wherein
• the rotational translation unit includes
• a shaft configured to rotate when receiving torque from the rotary electric motor, and
• a nut having an annular or tubular shape, provided radially outward of the shaft, and configured to translate in an axial direction relative to the shaft in accordance with rotation of the shaft,
• the fork includes
• a fork base having an annular or tubular shape, provided radially outward of the nut, and movable in the axial direction relative to the nut, and
• a movement restriction portion configured to restrict relative movement of the fork base in the axial direction relative to the nut, and
• the electric actuator unit includes a spring provided between the nut and the fork base and configured to bias the fork base in the axial direction relative to the nut.