To provide a clutch device, capable of rotating only a driving shaft as early as possible after starting rotation of the driving shaft while preventing trouble between a clutch element and the shaft.

The clutch device 50 comprises a clutch mechanism 60 including a fastening spring 63 that is a clutch element which causes a connecting effect when a driving gear 61 corresponding to the driving shaft is rotated in a specific direction, and an interruption mechanism 70 for stopping the fastening spring 63 rotating with the driving gear 61 in the specific direction to interrupt power transmission from the driving gear 61 to a driven shaft 62. A control part 90 works the interruption mechanism 70 after the fastening spring 63 rotates at once after starting the rotation of the driving gear 61 to interrupt the power transmission from the driving gear 61 to the driven shaft 62. According to this, a rotating force can be given to the fastening spring 63 before working the interruption mechanism 70 to obtain a frictional force sufficient to expand the fastening spring 63 from a boss part 61a of the driving gear 61.