MARKING DEVICE Russian patent published in 1994 - IPC

FIELD: center-marking devices. SUBSTANCE: tip of punch 10 is mounted at the point where it necessary to make a hollow, and body 1 is pressed. Body 1 moves and compresses springs 3 and 9 and its conical bore begins to act on annular projection 6 of striker 4. The striker takes a coaxial position with head 8, and spring 3 moves striker 4 until it strikes head 8. When the force is removed from body 1 the striker is displaced relative to the center of projection 5 under the action of eccentrically located projection 2 and engages with head 8. EFFECT: improved reliability and reduced overall dimensions. 2 dwg