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US 8,127,589 B2Granted
Pliers for pressing work pieces
AssigneeWezag GmbH Werkzeugfabrik
InventorKurt Battenfeld
Life of this patent
Estimating the term…
Abstract
Pliers for pressing work pieces such as mountings, electric contacts, cable lugs and fittings include a first hand lever and a second hand lever. The hand levers are movable with respect to one another. The pliers also include a head and at least two pressing jaws being located in the region of the pliers head and approaching one another during a working stroke of the pressing pliers to press a work piece. The working stroke includes a first partial stroke and a second partial stroke. The pliers also include a first transfer mechanism and second transfer mechanism.
Claims11
Pliers for pressing work pieces, comprising:
- a first hand lever;
- a second hand lever, said first and second hand levers being designed and arranged to be movable with respect to one another;
- a head;
- at least two pressing jaws, said pressing jaws being located in the region of said head and being designed and arranged to approach one another during a working stroke of said pliers to press a work piece, the working stroke including a first partial stroke and a second partial stroke wherein said pressing jaws are located in an open position when said hand levers are located in a closed position;
- a first transfer mechanism, said first transfer mechanism being formed by a first toggle lever drive, said first toggle lever drive including a first toggle joint being formed by a first joint, said first toggle lever drive being designed and arranged to transmit forces applied by a user to said hand levers to said pressing jaws to produce a first pressing force during the first partial stroke, the first pressing force being applied by each of the at least two pressing jaws in a crimping direction towards the work piece wherein the first transfer mechanism is designed and arranged to attain the first partial stroke by moving said first and second hand lever with respect to one another in a first direction;
- and
- a second transfer mechanism, said second transfer mechanism being formed by a second toggle lever drive, said second toggle lever drive including a second toggle joint being formed by a second joint, said second toggle lever drive being designed and arranged to transmit forces applied by a user to said hand levers to said pressing jaws to produce a second pressing force during the second partial stroke, the second pressing force being applied by each of the at least two pressing jaws in the crimping direction towards the work piece wherein the second transfer mechanism is designed and arranged to attain the second partial stroke by moving said first and second hand lever with respect to one another in a second direction other than the first direction.
4 more elements
Dependencies are inferred from the claim text.