Hydraulic punch

Abstract

A hydraulic punch (1) having a hydraulic ram (2) and a hydraulic pump (3). The hydraulic pump having a body (4) and a reservoir having a longitudinal axis (XX) being secured to the ram and equipped with a manual operating lever (12). The ram is articulated to the pump body about an axis of rotation (ZZ) which is inclined with respect to the longitudinal axis (XX) of the pump reservoir. The ram (2) has a cylinder (7) containing a piston (8) and a ram end (9) forming a connection with the body (4) of the pump (3) to which it is rotatably articulated. An indexing device such as a ball (15) pushed by a spring and housed in indentations in the body (4) or in the ram end (9) allow the ram (2) to be kept in a chosen angular position (parallel or perpendicular) with respect to the pump (3). Furthermore, a longitudinal pull axis (YY) of the ram (2) is offset laterally from and parallel to the longitudinal axis (XX) of the reservoir of the pump (3). Because the ram (2) can be orientated with respect to the pump (3), this punch alone can replace the two tools which were previously needed.

Dependencies are inferred from the claim text.