초록 ▼

Locking or expanding pliers (1) having two plier arms (4, 5) which arc joined to each other in the manner of a scissor-type joint. The arms forming grip sections (6, 7) on one end and clamping sections (12, 13) on the other end and being able to be locked in various clamping positions, whereby the c

Locking or expanding pliers (1) having two plier arms (4, 5) which arc joined to each other in the manner of a scissor-type joint. The arms forming grip sections (6, 7) on one end and clamping sections (12, 13) on the other end and being able to be locked in various clamping positions, whereby the clamping results from the elastic deformation of at least one of the two plier arms (4, 5) occurring when the plier arms (4, 5) are placed in a clamping position. A spring element (F) is arranged in the active area between the clamping section and the grip section in order to achieve improved proportioning of the clamping force, whereby both grip sections (6, 7) can be disposed on top of each other and placed in another locking position (19, 20), when both clamping sections (12, 13) are maintained in a distanced position (a), in order to increase clamping power.

대표청구항 ▼

1. A clamping or expanding pliers, comprising:two pliers arms connected to one another at a pivot joint, and which form handle sections at one end and clamping sections at another other end, the two pliers arms being latchable at different clamping positions and having a clamping force from elastic

1. A clamping or expanding pliers, comprising:two pliers arms connected to one another at a pivot joint, and which form handle sections at one end and clamping sections at another other end, the two pliers arms being latchable at different clamping positions and having a clamping force from elastic deformation of at least one of the two pliers arms, the deformation being associated with movement of the two pliers arms into at least one of the clamping positions; and a spring element disposed in a region of action between the clamping sections and the handle sections such that, with the two clamping sections secured in a spaced-apart position in relation to one another, the two handle sections can be displaced toward one another into another latching position in order to increase the clamping force. 2. The clamping or expanding pliers according to claim 1, wherein the spring element is disposed on at least one of the handle sections.3. The clamping or expanding pliers according to claim 1, wherein the two pliers arms are formed by flexurally stiff profile bodies made of metal.4. The clamping or expanding pliers according to claim 1, wherein one of the two pliers arms is formed by two levers which are resiliently mounted in relation to one another by the spring element.5. The clamping or expanding pliers according to claim 4, wherein the two levers can be pivoted toward one another about the pivot joint to increase the clamping force.6. The clamping or expanding pliers according to claim 4, wherein one of the two levers is a two-armed output lever, which forms the clamping section with a first lever arm and, with a second lever arm extends between the two handle sections, of which one handle section, as actuating arm of the drive lever formed by the other lever, acts on the second lever arm, with the interposed spring element being compressed in the process.7. The clamping or expanding pliers according to claim 4, wherein the spring element is disposed in a prestressed state between the two levers.8. The clamping or expanding pliers according to claim 1, wherein the spring element is a compression spring and is carried by one of the two the pliers arms which has a latching-release lever.9. The clamping or expanding pliers according to claim 8, wherein the pliers arm which carries the latching-release lever is supported on the pliers arm via a nose which extends on a far side of the pivot joint.10. The clamping or expanding pliers according to claim 1, wherein the two clamping sections are formed by groups of lamellae and form a mouth of the pliers.11. The clamping or expanding pliers according to claim 1, wherein the handle sections of the two pliers arms have cross-sectionally U-shaped profiles.12. The clamping or expanding pliers according to claim 1, wherein the clamping sections have U-shaped clamping jaws formed by folding a punched blank, which has a window, such that the window has profiled window edges which are oriented toward one another and form two gripping flanks which extend parallel to one another and are connected to one another at ends via crosspieces.13. The clamping or expanding pliers according to claim 1, further comprising a latching-release lever is fixed in a position on one of the two pliers arms.14. The clamping or expanding pliers according to claim 13, wherein the latching-release lever is fixed in the position by a slide which is associated with one of the handle sections and which can be introduced into a displacement path of the latching-release lever.