Cutting or pressing appliances
AssigneePressmaster AB
InventorHans Wiener
Life of this patent
Estimating the term…
Abstract
An appliance for cutting or otherwise deforming rod-shaped workpieces, e.g. wires, has an elongate tool body with an intermediate portion to which an actuating member or handle is pivotally connected at a first fulcrum. An extremity of the tool body, extending beyond that first fulcrum, carries a first jaw and terminates in a tip to which an arm carrying a coacting second jaw is articulated at a second fulcrum. The opposite end of the arm is rigid with or hinged to an arcuate rack, centered on the second fulcrum, whose teeth are engageable by a stepping pawl on the handle to drive the jaws closer together when the handle is swung in a predetermined sense relative to the tool body.
Claims11
An appliance for gripping and deforming generally rod-shaped workpieces, comprising:
- an elongate tool body with an extremity carrying a first jaw;
- an actuating member articulated to said tool body, at a portion of said tool body adjoining said extremity, for relative swinging about a first pivotal axis;
- an arm articulated to a tip of said extremity for relative swinging about a second pivotal axis parallel to said first pivotal axis, said arm carrying a second jaw confronting said first jaw and bracketing therewith a work space located between said pivotal axes;
- and
- force-transmitting means linking said actuating member with a part of said arm separated from said tip by said second jaw for translating a swing of said actuating member in a predetermined direction with reference to said tool body into a movement of said jaws toward each other with exertion of clamping pressure upon a workpiece inserted into said work space, said force-transmitting means including a rack member secured to said part and a stepping pawl on said actuating member directly coacting with said rack member for intermittently advancing said jaws toward each other upon relative oscillations of said actuating member and said tool body, said working space being surrounded on all sides by said extremity, said arm and said rack member.
An appliance as defined in claim 3 wherein said rack member has a toothed convex edge confronting said first pivotal axis.
Dependencies are inferred from the claim text.