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US 4,152,962 AGranted
Cutting of paper in a printer
AssigneeMannesmann Aktiengesellschaft
InventorWolfgang Hendrischk
Life of this patent
Estimating the term…
Abstract
A web is cut in a printer by a carriage driven stepped roll being urged against a stationary cutting edge so that a tear point travels ahead of the engagement of the roll with the edge and the paper. The roll can be retracted and latched into a non-cutting position.
Claims13
Device for cutting a web in a printer, comprising:
- a stationary bar having two surfaces intersecting at right angles to establish a cutting edge extending transversely to a direction of web advance in the printer;
- one of the surfaces engaging the web to be cut;
- carriage means running along but above said bar;
- a cutting roll journalled on the carriage having first and second cylindrical portions respectively of small and large diameter and annular shoulder in between;
- means for urging the roll down towards the one surface of this bar so that the shoulder is located adjacent to the other one of the bar surfaces;
- and means for urging the shoulder laterally against the other bar surface.
3 more elements
Device for cutting a web in a printer comprising:
- a stationary bar having a cutting edge, extending transversely to a direction of web advance in a printer;
- a carriage running along said bar;
- an axially displaceable pivot lever on the carriage;
- a stepped cutting roll journalled on the pivot lever;
- means for urging the stepped roll against the edge for cutting by tearing as the roll moves across the bar in rolling engagement therewith;
- and
- means for pivoting and axially displacing said lever to move the roll from a cutting position to non-cutting positions.
4 more elements
Device as in claim 11, the plural cam means being placed alongside different, parallelly positioned webs in the printer.
Dependencies are inferred from the claim text.