| 摘要 |
The inventions relates to crimping pliers with two hand levers (3, 5) and two actuation elements (9, 10) located in the region of a pliers head (4). The actuation elements (9, 10) actuates dies (12) between which a workpiece can be crimped. A toggle lever drive (33) with two toggle levers (34, 35) which build a toggle lever angle (36) acts between the hand levers (3, 5) and the actuation elements (9, 10). One toggle lever (34) is built by a roller (23) which is pivotably mounted to the hand lever (5). The roller (23) rolls along a curved track (24) fixed at the other hand lever (3). A forced locking unit (48) is built with a toothed latching lever (28) which is supported for being rotated relatively to the roller (23).;A lever part (30) of the toothed latching lever (28) is coupled by a sliding guide to the hand lever (3), whereas the other lever part (29) of the toothed latching lever (28) forms a toothing (31) for latching of the forced locking unit (48). |
| 主权项 |
1. Crimping pliers for crimping a workpiece comprising
a) two drive elements, b) a pliers head, c) two actuation elements located at the pliers head, the actuation elements actuating dies between which the workpiece can be crimped, and d) a toggle lever drive interposed between the drive elements and the actuation elements,
da) wherein the toggle lever drive comprises two toggle levers,db) wherein the toggle levers build a toggle lever angle which changes over a working stroke, e) wherein one toggle lever is built by a roller which
ea) is mounted to a first one of the drive elements for being pivoted around a roller axis andeb) rolls along a curved track, said curved track being fixedly connected to the second drive element, f) a forced locking unit comprising a toothed latching lever, said toothed latching lever being mounted to the first drive element with a pivoting degree of freedom with respect to both
fa) the first drive element andfb) the roller, g) wherein a first lever part of the toothed latching lever is coupled by a sliding guide with the second drive element and h) a second lever part of the toothed latching lever forms a toothing for latching of the forced locking unit. |
