Shear for shearing laminar elements

Details Shear for shearing laminar elements Shear for shearing laminar elements

1991-09-25

1993-06-08

Jones, David

Cutting

Cutting motion of tool has component in direction of moving...

Orbital motion of cutting blade

83345, 83674, B23D 2512

Patent

active

052169626

ABSTRACT:
The present invention relates to a shear for shearing laminar elements, flat material. This shear comprises at least one pair of blade-holders and associated blades which move substantially parallel to each other along straight lines which are spaced apart a predetermined distance from each other. The predetermined distance is computed as a function of the thickness of the material and the nature of the material which is to be sheared. The blades have cutting edges which, at the time of shearing, apply a pair of mutually perpendicular forces Fx and Fy to the material being sheared. The force Fy acts along a straight line perpendicular to a plane or surface through the material or upon which the material rests. It is along the straight line of the force Fy that the blade-holders and blades move during the shearing operation.

REFERENCES:
patent: 1814513 (1931-07-01), Johnson
patent: 2756821 (1956-07-01), Phipps
patent: 3461767 (1969-08-01), Stubbins
patent: 4112798 (1978-09-01), Yohizawa et al.
patent: 4226150 (1980-10-01), Reed
patent: 4308776 (1982-01-01), Gillespie et al.

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