METHOD AND DEVICE FOR THE VIBRATORY OPERATION OF A WORKING PISTON, PARTICULARLY FOR WORKING TOOLS

摘要

PCT No. PCT/EP84/00227 Sec. 371 Date Mar. 22, 1985 Sec. 102(e) Date Mar. 22, 1985 PCT Filed Jul. 21, 1984 PCT Pub. No. WO85/00762 PCT Pub. Date Feb. 28, 1985.The working piston (15) in the cylinder (1) is acted upon by pressure fluid only on one side, while the return movement of the piston is produced by reaction forces (R). The pressure fluid feed and the pressure fluid discharge are effected by way of separate conduits (9, 10) so that there is a continuous interchange of pressure fluid in the cylinder (1). When the maximum piston stroke position is reached, pressure fluid can flow out of the cylinder (1), irrespective of the control position of the control device (2). In both limit positions of the piston (15), the movement of the piston is braked by a mechanical damping means (18).