Pair of pressing jaws for hydraulic or electric pressing tools

Abstract

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.

1 . Pair of pressing jaws for hydraulic or electric pressing tools for pressing fittings onto pipes or for the press connection of electric cables, comprising: 
 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, wherein in each pressing jaw one end of the tension spring is accommodated in an accommodating opening which opens out into a narrow peripheral side of the pressing jaw, said narrow peripheral side being directed toward the free space wherein a tension-spring end engages a pin-like securing part disposed at that end of the accommodating opening which is directed away from the free space, and wherein the securing part is formed as an integral crosspiece of the pressing jaw.    
   
   
       2 . Pair of pressing jaws according to  claim 1 , wherein the crosspiece is formed by a sunk-in region which is disposed so as to overlap an axial extension of the accommodating opening.  
   
   
       3 . Pair of pressing jaws according to  claim 2 , wherein the sunk-in region is followed by a through-opening.  
   
   
       4 . Pair of pressing jaws according to  claim 2 , wherein the sunk-in region is formed in a broad side of a pressing-jaw wall.  
   
   
       5 . Pair of pressing jaws according to  claim 2 , wherein in relation to a surrounding peripheral region of the pressing jaw, the pressing-jaw wall is recessed in the region of the sunk-in area.  
   
   
       6 . Pair of pressing jaws according to  claim 2 , wherein the depth of the sunk-in region corresponds at least to the thickness of a spring wire forming the spring.  
   
   
       7 . Pair of pressing jaws according to  claim 3 , wherein the crosspiece on one side, has a contour corresponding to the curvature of the through-opening while the contour on the opposite side runs rectilinearly.  
   
   
       8 . Pair of pressing jaws according to  claim 2 , wherein the crosspiece is formed by a protuberance left in the sunk-in region.  
   
   
       9 . Pair of pressing jaws according to  claim 8 , wherein the height of the protuberance corresponds to the depth of the sunk-in region.  
   
   
       10 . Pair of pressing jaws according to  claim 1 , wherein the two pressing jaws of the pair of pressing jaws are axially symmetrical in the assembled state.  
   
   
       11 . Pair of pressing jaws according to  claim 1 , wherein the two pressing jaws of the pair of pressing jaws are mirror-symmetrical in the assembled state.  
   
   
       12 . Pair of pressing jaws according to  claim 1 , wherein in each pressing jaw one end of the tension spring engages around the securing part of the pressing jaw.