US 4,112,796 AGranted

Cutter apparatus for dividing a form band or the like into individual forms

AssigneeMaschinenfabrik Kern AG Konolfingen

InventorHeinz Brechbuhl

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Abstract

A cutter apparatus for dividing a form band or the like into individual forms, comprising two stationary cutters or knives and a movable cutter beam. The movable cutter beam possesses two knife or cutter edges at both marginal regions of the lower one of its two narrow sides. These cutter or knife edges, during each cutting stroke of the cutter beam, cut-out from the form band a transverse strip. At least one ejector element is mounted to be freely movable between two end or terminal positions at the cutter beam in a direction disposed essentially at right angles to said lower narrow side of the cutter beam. In particular, the ejector element can freely move between an inner terminal position in which it is dispositioned completely within the cutter beam and an outer terminal position in which an end portion of said ejector element which neighbors the aforesaid lower narrow side protrudes therefrom, in such a manner that during a rapid return stroke the ejector element which is then exposed to the action of inertia detaches the just-cut transverse strip from the cutter beam.

Claims2

Dependent claims

A cutter apparatus for dividing a form band or the like into individual forms, comprising:

two stationary cutters:
a movable cutter beam coacting with said two stationary cutters;
said movable cutter beam having a lower narrow side equipped at both marginal regions thereof with two cutter edges which cut out of the form band a transverse strip during each cutting stroke of said cutter beam;
at least one ejector element comprising an ejector bolt freely movably mounted at the cutter beam between two terminal positions and disposed essentially perpendicular to said narrow side of said cutter beam;
said ejector element being movably between an inner terminal position in which said ejector element is located completely within the cutter beam and an outer terminal position in which an end region of the ejector element neighboring the narrow side of the cutter beam protrudes therefrom, in such a manner that during a rapid return stroke of the cutter beam away from said two stationary cutters the ejector element subjected to the action of inertia detaches a transverse strip from the cutter beam which has just been cut out of the form band;
said cutter beam possesses a number of transverse holes distributed over its length;
each said ejector bolt being arranged to cooperate with a related one of said holes;
said cutter beam possessing a respective bore merging with each said hole;
each ejector bolt having a thicker upper portion freely movable within a related one of the holes and a lower portion guided in a bore of the related hole of the cutter beam;
and
each said lower portion including the end region of the ejector element acting upon the cutoff transverse strip.

8 more elements

Dependencies are inferred from the claim text.