Patent ID: 9527258
Filing Date: 2016-12-27
CPC Classification: B30B,F16C,F16F,Y10T

Claim Text:
1. A compensator for unbalanced compression forces for press machines, comprising: a first body having a first concave coupling surface and a first end portion opposite the first coupling surface; a second body having a second convex coupling surface and a second end portion opposite the second coupling surface, the first and second coupling surfaces being geometrically coupled to each other in such a way as to allow a relative rotational movement between the first body and the second body, wherein an end portion of at least one of the bodies is configured for being fixed to a structural element of a press machine, the end portion of the other body being configured for forming an abutment surface designed to interact, in use, with a free end of a stem of a gas cylinder of a press machine, the first and the second body being mutually connected while being simultaneously fixed to a structural element of a press machine via said end portion of at least one of the bodies, whereby the compensator moves along with said structural element; wherein the compensator further comprises a retaining element simultaneously partially inserted in a first annular groove made on the first body and in a second annular groove made on the second body, the second annular groove having a size such as to allow a mutual sliding between the first and second coupling surfaces, the second annular groove having an upper surface, a lower surface, and a side surface which connects the upper surface to the lower surface, the retaining element contacting or contactable with the upper surface to prevent upward movement of the retaining element relative to the second body.