Folding pliers

Abstract

Folding pliers for bending sheet metal includes a first clamping area and a second clamping area. Clamping areas are connected for rotation about a first axis. A first handle piece, which is connected to the first clamping area, and a second handle piece is pivotably connected to the first handle piece. The second handle piece is connected to the second clamping area and is rotatable about a second rotation axis, so when the first handle piece is pivoted relative to the second handle piece from a transport position, the first clamping area is moved relative to the second clamping area to clamp a piece of sheet metal between the clamping areas. After this, another pivot movement of the first handle piece relative to the second handle piece causes rotational movement of the first clamping area and second clamping area about the second rotation axis to bend the clamped sheet metal.

1 . Portably usable folding pliers for bending sheet metal, comprising a first clamping area and a second clamping area, wherein the clamping areas are connected such that they can be rotated about a first rotation axis, and also a first handle piece and a second handle piece connected to the first handle piece in a pivotable manner, wherein the first handle piece is connected to the first clamping area, wherein the second handle piece is connected to the second clamping area such that the second handle piece can be rotated about a second rotation axis, so that when the first handle piece is pivoted relative to the second handle piece in a direction of movement  13  from a transport position, the first clamping area is moved relative to the second clamping area such that a piece of sheet metal positioned between the clamping areas can be clamped by the clamping areas, after which a further pivot movement of the first handle piece relative to the second handle piece in the direction of movement  13  causes a rotational movement of the first clamping area together with the second clamping area about the second rotation axis relative to the second handle piece, in order to bend the clamped sheet metal. 
     
     
         2 . The folding pliers according to  claim 1 , wherein the first rotation axis and the second rotation axis are approximately parallel. 
     
     
         3 . The folding pliers according to  claim 1 , wherein the sheet metal can essentially be clamped by the clamping areas over the entire area between the first rotation axis and the second rotation axis. 
     
     
         4 . The folding pliers according to  claim 1 , wherein a rotatable connection between the clamping areas and/or between the second clamping area and the second handle piece is formed by a hinge, in particular a piano hinge. 
     
     
         5 . The folding pliers according to  claim 1 , wherein the first handle piece is connected to the first clamping area via a plate-shaped intermediate element, wherein the first handle piece is preferably connected to the plate-shaped intermediate element via at least two connection positions which are arranged in particular at an end. 
     
     
         6 . The folding pliers according to  claim 1 , wherein the second handle piece is connected to the second clamping area via a plate-shaped intermediate element, wherein the second handle piece is preferably connected to the plate-shaped intermediate element via at least two connection positions which are arranged in particular at an end. 
     
     
         7 . The folding pliers according to  claim 1 , wherein the first clamping area is connected to the first handle piece in a rigid manner, wherein in a transport position, in which the handle pieces bear against one another, the clamping areas are arranged at an opening angle of 10° to 90°, in particular 15° to 35°, preferably approximately 20°, to one another and are open in order to accommodate a piece of sheet metal. 
     
     
         8 . The folding pliers according to  claim 1 , wherein, in the transport position, a torque that is necessary to move the second handle piece about the second rotation axis relative to the second clamping area is greater than a torque that is necessary to move the first handle piece about the first rotation axis relative to the second clamping area, so that a movement of the first handle piece out of the transport position first initiates a movement of the first handle piece relative to the second clamping area. 
     
     
         9 . The folding pliers according to  claim 8 , wherein at least one spring is provided on a joint which forms the second rotation axis, in particular on a piano hinge forming the second rotation axis, with which spring a friction force acting between parts of the joint that can be moved relative to one another can be applied to the joint, in order to define a torque necessary for initiating a movement of the joint, wherein a spring force can be adjusted in particular by a set screw.