Shear knife with blade insert

Details Shear knife with blade insert Shear knife with blade insert

1997-02-24

1999-02-23

Watts, Douglas D.

Cutlery

Combined cutlery or combined with ancillary feature

With material-holder or disposal

24110173, B23P 1900

Patent

active

058731687

ABSTRACT:
A two-piece shear knife replaces a conventional one-piece shear knife for use in a power shear. The two-piece knife includes a main body with a cutout formed by first and second inner surfaces. A blade insert with a single cutting edge is seated in the cutout. One of the inner surfaces of the cutout and the complementary abutting insert surface are angled toward a confronting surface to direct shearing forces from the cutting edge diagonally inwardly toward the inner corner of the cutout and into the main body. This efficiently transfers shearing forces and reinforces seating engagement of the insert. The two-piece construction of the shear knife allows the main body to be made from a less expensive, less wear resistant material.

REFERENCES:
patent: 4193189 (1980-03-01), Marin
patent: 4558515 (1985-12-01), LaBounty
patent: 4686767 (1987-08-01), Ramun et al.
patent: 4771540 (1988-09-01), LaBounty
patent: 4776093 (1988-10-01), Gross
patent: 4897921 (1990-02-01), Ramun
patent: 5187868 (1993-02-01), Hall
patent: 5197193 (1993-03-01), Smith
patent: 5230151 (1993-07-01), Kunzman et al.
Brochure: "Veratech Attachments, Mechanical Power-Shear-VPS With Stick Relieving Device", Veratech Attachments, 61 County Line Road, Somerville NJ 08876.

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