METHOD OF PRESSING OUT RUBBER-METAL JOINT PIN AND DEVICE FOR ITS REALIZATION Russian patent published in 1994 - IPC

FIELD: hand-operated tools. SUBSTANCE: pressing-out operation is performed in two stages: at the first stage rubber-metal pin is displaced axially at a distance exceeding the value of elastic deformation of the rubber layer through applying a constant actual force, and at the second stage the pin is displaced by means of applying impact axial forces. The pressing-out device containing screw and nut pair is additionally provided with composite extension pin. The screw of the pair is provided with through axial hole to receive the extension pin and with the hole to receive detachable retainer of the extension pin. The members of the pin are in the form of cylinders with convex spherical surface on the side of the joint and flat surface on the opposite side. EFFECT: reduced pressing out-time and reduced injury hazard. 2 cl, 2 dwg