ELECTRICIAN'S COMBINATION TOOL

• US 3,733,627 A
• Filed: 05/20/1971
• Issued: 05/22/1973
• Est. Priority Date: 05/20/1971
• Status: Expired due to Term

• Current Assignee: Kastar (U.S.A.) Inc.
• Original Assignee: Harry Epstein
• Inventors: Epstein, Harry
• Primary Examiner(s): Custer, Jr., Granville Y.
• Assistant Examiner(s): Parker, Roscoe V.
• Application Number:
  US05/145,345
• Time in Patent Office: 733 Days
• Field of Search: 7/5.4,3,4,5.1,14.1,5.6 81/9.5R 30/90.1 140/102.5,104,106,121
• US Class Current: 7/108
• CPC Class Codes: B25F 1/00 Combination or multi-purpose hand tools associations of tools for different working operations with one portable power-drive means B25F3/00; combined stapling and punching tools B25C5/0214
• CPC Class Codes: H01R 43/042 Hand tools for crimping
• CPC Class Codes: H02G 1/1214 not using wire or cable clamping means

Abstract

Combination tool of particular utility to electricians or other craftsmen, handymen, mechanics or the like, for performing any of a plurality of operations involved in terminating electrical wires including cutting of wires, stripping of insulation therefrom, crimping solderless terminals, forming screw connection loops and turning screws.

Claims

1. Combination tool for enabling performance of a number of different operations involved in terminating electrical wiring comprising a pair of crossed essentially flat levers stacked one above the other, means securing said levers at the location of crossing for pivotal movement thereabout and adjustable stop means for limiting the closure of said levers towards each other, each of said levers comprising an elongated handle portion entending generally outwardly of said securing means in a first direction and a jaw portion extending generally outwardly of said securing means generally oppositely thereof, said jaw portions defining therebetween a wire stripper comprising a pair of oppositely facing generally V-shaped cutting edges formed on opposed adjacent edges of said jaws for cutting insulation and enabling a stripping of such cut insulation from wire end portions when said handle portions are squeezed together and said handle portions defining a terminal crimper therebetween comprising a generally V-shaped groove extending inwardly of an edge of one of said handle portions adjacent the other of said handle portions and a cooperating crimping point extending outwardly of said other handle portion offset above the plane thereof substantially in the plane of the other handle portion for projecting into said V-shaped groove and crimping solderless terminals disposed therein upon squeezing of said handle portions, said wire stripper and said crimping means being proportioned and positioned relative said securing means so that a single setting of said adjustable stop properly sets both said stripper and said crimper for a selected wire size.

2. Tool for enabling performance of operations involved in terminating electrical wiring comprising, in combination, a pair of crossed essentially flat levers stacked one above the other and provided with a plurality of cooperating working portions for preparing and terminating electrical wires upon pivotal movement therebetween and means securing said levers at the locatioN of crossing for pivotal movement thereabout, said securing means comprises a post extending through said crossed levers having a generally cylindrical head portion extending generally perpendicularly upwardly of said levers, the upper one of said levers comprising a tang extending generally upwardly generally parallel said post and spaced apart a short distance therefrom to define therewith a wire former so that a wire having the end portions inserted therebetween may be wrapped about said post to form a loop.

3. Tool defined in claim 1 wherein said adjustable stop comprises a generally circular cam rotatably and eccentrically mounted on one of said handle portions for engagement by the adjacent edge of the other of said handle portions.

4. Tool defined in claim 1 wherein said jaws further comprise wire cutting edges for shearing wire disposed therebetween during squeezing of said handle portions.

5. Tool defined in claim 4 wherein at least one of said jaws is extended generally forwardly and shaped to define a screwdriver blade tip.

6. Tool defined in claim 5 wherein said securing means comprises a generally cylindrical head portion extending generally perpendicularly upwardly of said levers, the upper one of said levers comprising a tang extending generally upwardly generally parallel said post and spaced apart a short distance therefrom to define therewith a wire former so that a wire having the end portions inserted therebetween may be rapidly and easily wrapped around said post to form a screw connection loop.

7. Tool defined in claim 6 wherein said securing means comprises a neck portion extending through said crossed levers and peened over on the other side so as to rivet said levers together.

8. Tool defined in claim 1 wherein at least one of said jaws is extended generally forwardly and shaped to define a screwdriver blade tip.

9. Tool defined in claim 2 wherein said securing means further comprises a neck portion extending through said crossed levers and peened over on the other side so as to rivet said levers together.

10. Tool defined in claim 4 further comprising means for urging said jaws laterally together to increase the shearing action thereof, said means for urging comprising, in turn, a tensioning spur extending outwardly of one of said handles generally parallel the other and subjacent thereto provided with a dimple raised toward said other handle to bend said handles apart and thereby tension said jaws.