Dispenser for rolls of flexible sheet material and cutter mechan

Details Dispenser for rolls of flexible sheet material and cutter mechan Dispenser for rolls of flexible sheet material and cutter mechan

1977-10-14

1980-02-19

Schran, Donald R.

Cutting

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

Orbital motion of cutting blade

83335, 83349, B26D 156

Patent

active

041888448

ABSTRACT:
A mechanism for cutting a web of flexible sheet material which is adapted to be used in a dispenser having a feed roller and a pinch roller between which rollers the web passes. A knife is pivotally mounted in the feed roller to swing about an axis laterally displaced from the plane of a radially outward portion of the knife defining a cutting edge which edge is projected outwardly beyond the periphery of the feed roller to cut the web as it passes over the feed roller and cam followers are carried by the ends of the knife extending beyond the ends of the feed roller with the followers displaced from the pivot mounting axis of the knife. Stationary cams are mounted adjacent the ends of the feed roller with which the cam followers on the knife engage to positively project the knife cutting edge beyond the feed roller periphery and retract the cutting edge upon rotation of the feed roller.

REFERENCES:
patent: 1811537 (1931-06-01), Cummings
patent: 3668962 (1972-06-01), Chapman
patent: 4122738 (1978-10-01), Granger

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