Cable wire testing pliers

• US 4,736,480 A
• Filed: 03/24/1986
• Issued: 04/12/1988
• Est. Priority Date: 03/27/1985
• Status: Expired due to Fees

• Current Assignee: Beler-Dowiday GmbH Werkzeug-Union
• Original Assignee: Beler-Dowiday GmbH Werkzeug-Union
• Inventors: Galle, Michael, Bohl, Hans, Gutermuth, Rainer
• Primary Examiner(s): MEISLIN, DEBRA S
• Application Number:
  US06/843,417
• Time in Patent Office: 750 Days
• Field of Search: 7/107, 7/125, 7/127, 7/129, 7/132, 7/158, 7/163, 7/164, 7/167, 7/170, 81/426, 324/133, 324/72.5, 324/158 P, 324/149, 30/90.4, 30/90.6-90.8, 30/91.2, 339/108 TP, 339/260, 339/261, 339/255 P
• US Class Current: 7/107
• CPC Class Codes: B25B 7/22 Pliers provided with auxiliary tool elements, e.g. cutting edges, nail extractors for removing insulation or armouring from electric cables H02G1/12
• CPC Class Codes: G01R 1/06788 Hand-held or hand-manipulated probes, e.g. for oscilloscopes or for portable test instruments end pieces terminating in a probe H01R11/18
• CPC Class Codes: H01R 11/18 End pieces terminating in a probe

Abstract

The pliers form a cable wire testing tool. At the front end of a working portion (11a), a blade-type piercing member (18) is adapted to leave, in closed condition of the pliers, a free space relative to a surface of the other leg (12) serving as an abutment (17). In use, a cable wire is placed between the working portion (11a, 12a) of the pliers. Upon compressing the legs, the piercing member (18) penetrates the cable sheathing to establish with its point the electric contact between the cable core and the pliers'"'"' leg (11) which is provided with a connecting member (20) for the connection of a test cable (22). Due to the cable wire testing pliers, the customary stripping and securing of terminals may be avoided for testing cable wires.

Claims

1. Pliers comprising a pair of legs, means connecting said legs together for relatively pivoting movement between a first operative position and a second inoperative position, each leg having a front working portion and a rear handle portion, at least one of said front working portions having means for piercing the sheet of an electric conductor in said first operative position of said legs, means for maintaining a predetermined gap between said piercing means and the other of said working portions in said first operative position of said legs, means attached to one of said rear handle portions for placing said piercing means in electrical conductivity with a test cable, said other of said working portions defining a generally elongated corrugated abutment portion in opposing relationship to said piercing means, said piercing means being an elongated blade, said elongated corrugated abutment portion and said elongated blade each having a generally longitudinal axis, said longitudinal axes being in generally parallel relationship to each other, said electrical conductivity placing means being a socket enclosed by insulating means which is adapted to removably receive an associated test cable which when removed permits "normal" use of the pliers, a medial working section between said front working portions and said pivot connecting means, said medial working section includes surfaces of said pair of legs which are in abutment with each other in the first operative position of said legs, and said medial working section constituting said gap maintaining means.

2. The pliers as defined in claim 1 wherein said one rear handle portion includes an end remote from said piercing means, said insulating means being a tubular portion projecting beyond said one rear handle portion end, and said socket being located within said tubular portion.