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Wire stripping tools

  • US 4,072,069 A
  • Filed: 04/07/1976
  • Issued: 02/07/1978
  • Est. Priority Date: 04/12/1975
  • Status: Expired due to Term
First Claim
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1. A wire stripping device comprising a body having a pair of gripping jaws pivoted thereon, a cylinder fixed to the body having an axially movable piston and piston rod, and a pair of cutting jaws which are pivoted to a member that has a lost motion connection with the piston rod, to permit limited initial motion of the piston rod relative to said member, wherein the improvement comprises a cam mounted on the piston rod and having a first jaw-closing surface, a second dwell surface to hold the gripping jaws closed, and a third jaw-opening surface, the cutting jaws being arranged between and in driving contact with the gripping jaws for actuation by the gripping jaws, cam followers including levers pivoted on the gripping jaws, spring means urging the cutting jaws apart into said driving contact with the gripping jaws, the cam surfaces being arranged to close both pairs of jaws during initial movement of the piston rod relative to said member, to hold the gripping jaws closed during further movement of the piston carrying along said member, and to open both pairs of jaws during still further movement of the piston and member, and resilient means fixed to the gripping jaws providing resistance to said levers during movement of the piston rod.

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