Hydraulic tool working head

Details Hydraulic tool working head Hydraulic tool working head

B - Operations, Transporting

21

D

B21D 37/10 (2006.01) B21J 13/04 (2006.01)

Patent

CA 2618820

A hydraulic tool working head (28) includes a frame (46), a ram (48) and a connection between the ram and the frame (Figure 6). The frame has a first section (63) with a hydraulic cylinder area, an opposite second section (66) and a middle section (64) connecting the first and second sections to each other. The ram is movably located in the hydraulic cylinder area and extends out of the first section of the frame towards the opposite second section of the frame. The connection between the ram and the middle section includes the middle section of the frame have two slots (70) extending into the opposite sides of the middle section and the ram having two cantilevered hook sections (76) which generally face towards each other (Figure 7). The hook sections have ends slidably ends (78) respectively located in the two slots of the middle section (Figure 8).

L'invention concerne une tête de travail pour outil hydraulique, comprenant un cadre, un piston et un élément de liaison situé entre le piston et le cadre. Le cadre comporte une première section avec une zone de cylindre hydraulique, une seconde section, opposée à la première section, et une section intermédiaire reliant la première section à la seconde section. Le piston est disposé de façon mobile dans la zone de cylindre hydraulique et s'étend au-delà de la première section du cadre, en direction de la seconde section du cadre. L'élément de liaison situé entre le piston et la section intermédiaire comprend deux fentes qui s'étendent dans des côtés opposés de la section intermédiaire. Par ailleurs, le piston comporte deux sections en porte-à-faux disposées globalement face-à-face. Ces sections en porte-à-faux possèdent des extrémités coulissantes disposées dans les deux fentes de la section intermédiaire.

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