Patent ID: 7982152

Claim:
A trigger switch comprising: fixed contacts forming main contacts double in series and functioning as a switch for supplying a motor with power and slide plate parts connected to the fixed contacts; and movable contacts provided in an actuator interlocking with an operation part and auxiliary contacts sliding on the slide plate parts, wherein the fixed contacts, the movable contacts and the auxiliary contacts are arranged in a manner that: drawing the operation part causes the actuator to move in a forward direction to make the movable contact come into electric contact with the fixed contact so as to supply the motor with power while simultaneously making the auxiliary contact bridge over the slide plate parts to achieve electric contact so as to make no potential in the contact between the movable contact and the fixed contact, and releasing the operation part causes the actuator to move in a reverse direction to make the movable contact separate from the fixed contact while simultaneously making movement of the auxiliary contact bridging over the slide plate parts cause a break of the contact with the slide plate part and a movable contact provided in the auxiliary contact be in contact with a fixed contact for short-circuiting the motor.