Patent ID: 6769341
Filing Date: 2004-08-03
Classification: B23D,Y10S,Y10T

Abstract:
A cutting device for cutting a sheet material comprising:a body; a driving device mounted on the body; a moving base actuated by the driving device and mounted in the body to reciprocate relative to the body; a head extending from the body and having a central hole defined through the head and corresponding to the moving base, a notch defined in a bottom of the head and communicating with the central hole, and an exhaust hole defined in the bottom of the head and communicating with the central hole; a cutting rod moveably received in the central hole in the head and attached to the moving base, the cutting rod having a cutting recess defined around the cutting rod at a position corresponding to the notch in the head and selectively corresponding to the exhaust hole in the head while the cutting rod is actuated to move with the moving base by the driving device, and the cutting recess having a cutting edge defined in an inner surface at one end aligned with the notch in the head far from the moving base; and a supporting a bar detachably attached to the head and having a free end for abutting the sheet material, wherein the notch in the head extending to two opposite sides of the head so as to form a neck on a top of the head having a width not larger than a diameter of the cutting rod; a thread portion formed on the head; and two nuts screwed onto the thread portion releasably to squeeze one end of the supporting bar therebetween.