초록 ▼

The invention relates to a pair of pressing jaws for hydraulic or electric pressing tools for pressing fittings onto pipes or for the press connection of electric cables, two pressing jaws connected to one another in an articulated manner forming a pair of pressing jaws, the pressing jaws being bias

The invention relates to a pair of pressing jaws for hydraulic or electric pressing tools for pressing fittings onto pipes or for the press connection of electric cables, two pressing jaws connected to one another in an articulated manner forming a pair of pressing jaws, the pressing jaws being biased into their open position by a tension spring which spans a free space between the two pressing jaws, and in each case one end of the tension spring being accommodated in an accommodating opening which opens out into a narrow peripheral side of the pressing jaw, this narrow peripheral side being directed toward the free space, and, in order to secure the tension spring, a tension-spring end engaging around a pin-like securing part, which securing part is disposed at that end of the accommodating opening which is directed away from the free space. In order to secure the tension spring in a functionally advantageous manner, it is provided that the securing part is formed as an integral crosspiece of the pressing jaw.

대표청구항 ▼

1. Pair of pressing levers for hydraulic or electric pressing tools for pressing fittings onto pipes or for the press connection of electric cables, comprising: two pressing jaws, each said pressing jaw having a first jaw end and a second jaw end, said pressing jaws capable of being in an open posit

1. Pair of pressing levers for hydraulic or electric pressing tools for pressing fittings onto pipes or for the press connection of electric cables, comprising: two pressing jaws, each said pressing jaw having a first jaw end and a second jaw end, said pressing jaws capable of being in an open position wherein said first jaw ends are spaced apart from each other and said pressing jaws capable of being in a closed position wherein said first jaw ends are proximate to each other;an extension extending from said second end of each said pressing jaw, each said extension having a first extension end and a second extension end, wherein said first extension ends are proximate to each other when said pressing jaws are in the open position and said first extension ends are spaced apart from each other when said pressing jaws are in the closed position, each said extension having opposite side walls extending between said first and second extension ends;an articulation between said pressing jaws and said extensions, said pressing jaws being connected to one another in an articulated manner at an said articulation;an accommodating bore formed through each said extension, each said bore being formed of a side wall formed by said respective extension, a first end opening out into said first extension side of said respective extension and a second opposite end spaced from said first extension side of said respective extension;a sunk-in region formed in one of said side walls of each said extension at said second end of said accommodating bore;a tension spring having opposite ends, said tension spring biasing the pressing jaws into said open position, said tension spring extending between the extensions;means for securing an end of said tension spring to said extensions, said means for securing being integral with each said extension and disposed in said sunk-in region,wherein portions of said tension spring seats within said accommodating bore of each said extension such that said wall of said accommodating bores completely surrounds said portions, and the respective end of the tension spring engages said means for securing. 2. Pair of pressing levers according to claim 1, wherein said means for securing in each said extension comprises a through-opening. 3. Pair of pressing levers according to claim 1, wherein in each said extension the sunk-in region is formed in a wall which is perpendicular to the first side. 4. Pair of pressing levers according to claim 1, wherein said tension spring is formed of a spring wire having a thickness, and each said sunk-in region has a depth which corresponds at least to the thickness of the spring wire. 5. Pair of pressing levers according to claim 2, wherein said through-opening has a curvature, said means for securing further comprises a crosspiece proximate to each said through-opening, each said crosspiece having opposite sides, one of said sides having a contour corresponding to the curvature of the respective through-opening. 6. Pair of pressing levers according to claim 1, wherein said means for securing comprises a protuberance. 7. Pair of pressing levers according to claim 6, wherein a height of each said protuberance corresponds to a depth of the respective sunk-in region. 8. Pair of pressing levers according to claim 1, wherein the two pressing jaws are axially symmetrical. 9. Pair of pressing levers according to claim 1, wherein the two pressing jaws are mirror-symmetrical.