AUTOMATIC MARKING DEVICE Russian patent published in 1994 - IPC

FIELD: shock devices. SUBSTANCE: device has a body from two axially interconnected parts. A head, an axially spring-loaded punch with a shank and a shock control mechanism are positioned in the body. The mechanism has a cap mounted on the body end and a spring positioned in the body, one end of the spring engages with the inner surface of the cap, and the other one - with the head end. Two radial projections are made on the punch shank, and hollows with helical slots for engagement with the radial projections of the punch shank are made on the inner surfaces of both parts of the body. The device also has a bush located between the head and the shank of the punch and mounted for reciprocating along the axis of the body. The bush has two longitudinal slots on the end facing the punch shank and matching in size radial projections of the punch shank. EFFECT: improved structure. 2 cl, 5 dwg