Patent ID: 6955109

Claim:
An electric punch comprising: a case with two side walls and a floor board connected between the two side walls, a motor located on the floor board and driving a shaft rotatably connected between the two side walls of the case; a plurality of pushing units mounted to the shaft and each pushing unit including a ring and a pushing member which includes a circular hole and the ring is rotatably engaged with the circular hole, each ring having a polygonal hole defined eccentrically therethrough and the shaft fixedly extending through the polygonal holes; a plurality of movable frames each including two upright walls and movably connected to the case, one of the upright walls having a recess defined therein; and a plurality of punch units each including a punch frame and a punch member movably connected thereto, a rear end of the punch member extending out from the punch frame corresponding thereto, the punch frames connected to the case and respectively located in front of the upright wall having the recess of the movable frames, the rear end of the punch member movably engaged with the recess of the movable frame corresponding thereto and being in contact with the pushing member, each punch frame including a slot for receiving sheets to be punched and a front end of the punch member capable of moving through the slot.