US 2006/0037446 A1 · Angled crosscut knife

Abstract

An apparatus (10) and method for crosscutting a web (12) of material has employs a knife (24) that is angled relative to the surface of the web. Orienting the knife so that an upper portion of the cutting edge engages the web after a lower portion of the cutting edge engages the web facilitates cutting the web at a transverse cut angle (β) of about 20 degrees. Simultaneously orienting the knife so that the upper portion of the cutting edge engages the web at a different position along the side edge than the lower portion of the cutting edge facilitates cutting the web at a horizontal cant angle (α) in the range of about 10 degrees to about 50 degrees.

Claims9

Dependent claims

An apparatus for crosscutting a web of material, said web having front and rear side edges and lying in a plane having horizontal and transverse boundaries, said apparatus comprising:

a mounting block;
a support member having an inclined surface and being attached to said support member;
and
a knife disposed on said inclined surface of said support member, said knife having a razor edge angled from vertical both horizontally and transversely so that said razor edge engages the web at a horizontal cant angle and a transverse cut angle, said inclined surface of said support member being inclined at said horizontal cant angle.

1 more element

Dependencies are inferred from the claim text.

Angled crosscut knife

Life of this patent

Angled crosscut knife

Life of this patent

Abstract

Claims9