US 7,604,426 B2Granted

Paper cutting device and a printer with a paper cutting device

AssigneeSeiko Epson Corporation

InventorsYukihiro Hanaoka, Hiroyuki Nakayama

Life of this patent

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Abstract

A paper cutting device for cutting sheet material from the lengthwise edges of the material toward the middle comprising a stationary blade and first and second movable blades with the sheet material placed between the stationary blade and the first and second movable blades. The paper cutting device enables the spacing between the stationary blade and the first and second movable blades to be opened by moving the stationary blade frame and the movable blade frame relative to each other. The first movable blade and second movable blade are supported on a first stud and second stud, respectively, near the distal ends of the edge of the blade part of the stationary blade so that the paths of the blade tips overlap when cutting the sheet material. The movable blade drive mechanism drives the first movable blade and second movable blade with the first movable blade leading and the second movable blade following.

Claims12

Dependent claims

A printer comprising:

a main frame having a roll paper compartment for storing roll paper and a printing mechanism for printing on the roll paper adapted to be moved along a given transportation path;
a cover frame movably connected to the main frame and having a cover for opening and closing the roll paper compartment;
a movable blade frame disposed to the main frame for supporting first and second movable blades with each blade having a blade tip with the blade tips in mutually opposed relationship;
a stationary blade frame disposed to the cover frame for supporting a stationary blade in a position substantially transverse to the transportation path during cutting;
and
a movable blade drive mechanism for driving the first and second movable blades to cut the roll paper in a scissor action against the stationary blade;
wherein the movable blade drive mechanism links and drives the first and second movable blades such that one movable blade leads and the other movable blade follows with the movable blades disposed such that the paths of the tips overlap during the cutting of paper.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 11/595,323Filed 8 Nov 2006
Priority: JP 2005-33144316 Nov 2005
Published: US 2007/0107575 A117 May 2007
Granted: 20 Oct 2009
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

B41J 11/663
Applications of cutting devices: controlling cutting, cutting resulting in special shapes of the cutting line, e.g. controlling cutting positions,…
B26D 5/14
Means for actuating the cutting member to effect the cut: crank and pin means
B41J 3/44
Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed: typewriters or selective…
B26D 1/305
With limited pivotal movement to effect cut: for thin material, e.g. for sheets, strips or the like