Impact tool wire-insertion head having selective cut/no cut blad

Details Impact tool wire-insertion head having selective cut/no cut blad Impact tool wire-insertion head having selective cut/no cut blad

1996-07-30

1998-06-02

Pitts, A. L.

Metal working

Plural diverse manufacturing apparatus including means for...

Including composite tool

29 33M, 29750, 29758, B23P 2300

Patent

active

057584036

ABSTRACT:
A wire-insertion and cutting head assembly for a telephone wire impact-type termination tool is selectively operable to effect either a non-cutting mode of operation, or a cutting mode of operation, by selectively positioning a rotatable cam pin-based arrangement. The cam-pin based arrangement is configured such that, for a first rotational pin orientation, during axial translation of the wire insertion blade into the bore of the blade receptacle, the axial bore of the shaft portion of the wire insertion blade passes by the cylindrical shaft portion of the cam pin, and a cam-shaped surface of the cam pin enters into and passes through a reduced width region of a cam-shaped opening of a scissor-shaped blade, which prevents rotation of the cutting blade. To seat and cut a wire, the cam pin is rotated to a second orientation, so that the cylindrical surface of the pin shaft is alongside a flared edge portion of the cam-shaped opening, whereby the cylindrical shaft portion of the cam pin will engage the curved surface of the cam-shaped opening in the wire-cutting blade and cause the wire-cutting blade to rotate across the depression in the wire insertion blade and sever a wire.

REFERENCES:
patent: 4434542 (1984-03-01), Forberg et al.
patent: 4567639 (1986-02-01), Fasano
patent: 4682412 (1987-07-01), Pfeffer
patent: 4696090 (1987-09-01), Gregson et al.
patent: 5175921 (1993-01-01), Krietzman
patent: 5195230 (1993-03-01), Krietzman
patent: 5613297 (1997-03-01), Dvorak et al.

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