Crimping pliers
AssigneeWezag GmbH Werkzeugfabrik
InventorKurt Battenfeld
Life of this patent
Estimating the term…
Abstract
The invention relates to crimping pliers (1). The crimping pliers comprise a spring element (7) which is located in the force flow between hand levers (3, 5) and dies (12). The spring element (7) builds a force-displacement-compensation element (8) which provides the option to be able to crimp workpieces with different cross-sectional areas with the crimping pliers (1). According to the invention, the spring element (7) which builds the force-displacement-compensation element (8) is built in the region of the pliers head (4) of the crimping pliers (1). Preferably, the spring element (7) is a spring in the shape of an arc of a circle or a spiral spring (44) which extends in circumferential direction around the die axis (13).
Claims26
Crimping pliers for crimping a workpiece comprising:
- a) two drive elements, comprising a fixed hand lever and a movable hand lever,
- b) a pliers head comprising a first actuation element and a second actuation element which are connected by a drive mechanism and a spring element to the drive elements,
- c) at least two dies for crimping the workpiece,
- d) two spring bases,
- wherein
- d) the first actuation element comprises guidances, wherein each said guidance guides the associated die, the second actuation element comprises actuation surfaces for the at least two dies and a relative movement between the first and second actuation element results in a movement of the at least two dies relative to the guidances which is caused by the contact of the acuation surfaces with the at least two dies such that the at least two dies are actuated for crimping the workpiece between the at least two dies,
- e) the spring element comprises a force-displacement-compensation element and
- f) the spring element is arranged in the pliers head and directly linked with one of the spring bases to the movable hand lever and with the other of the spring bases to the second actuation element.
Dependencies are inferred from the claim text.