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EP0058900A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Serial printer provided with cutter

Assignee: Bull HN Information Systems Italia SpA
•
Filing: 1982-02-13
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Granted: —
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Expires: 2002-02-13
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Abstract

Abstract Serial printer provided with cutter, the printer being of the type in which printing is performed by a printing head mounted on a carriage sliding on guides parallel to the printing line and a continuous printing support moves perpendicularly to the direction of such guides leaning against a substantially vertical platen. A rotating cutter is lever mounted on the carriage over the printing head in a position very close to the printing line and it can be actuated in order to partially overlap a cutting edge of the platen, the edge being parallel to the printing line. Owing to the printing head movement along the printing line the rotating cutter, when actuated operates the transversal cutting of the continuous form. The cut form is disposed in a collecting drawer behind the platen owing to the movement imposed by the rotating cutter and to the reduced thickness of the platen which constitutes a drawer wall. A transparent elastic leaf coupled to the lever on which the rotating cutter is mounted assures the form steadiness during the cutting by pressing it against the platen near the cutting zone. It further provides an elastic reaction which brings the rotating cutter in rest position when it is not actuated to be in cutting position. The leaf does not hamper print visibility nor does it hamper the loading of the form in the printer when carriage is at its end of travel position.

Inventors

  • 👤 Marcello Speraggi

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-04 15:53
CPC Classifications
B; B41; B41J; B41J11/00; B41J11/66; B41J11/70; B41J11/706; B41J11/663; B41J11/666

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 199 words
Serial printer provided with cutter, where printing is performed by a printing head mounted on a carriage sliding on guiding bars parallel to the printing line and a continuous printing support is fed transversely to the direction of the printing line andleans on a substantially vertical platen,characterized by that it comprises. - a lever mounted on,said sliding carriage; - a cutting roll mounted on said lever so as to be located over said printing head, downstream the printing line with a rotation axis substantially vertical; - a sharp edge, elongated in the direction of the printing line on said platen; - resilient return means coupled to said lever maintaining said lever and said cutting roll in a rest position apart from said platen; - actuating means for rocking said lever to bring said cutting roll in a cutting position where said cutting roll partially overlaps said sharp edge of said platen, and - feeding means for said continuous printing support located below said platen upstream said printing line, said return means having a reduced width as compared to the length of the print line, and exerting a local pressure on the continuous printing support, near below the cutting roll,
Claim 2
Dependent Claim 199 words
Serial printer provided with cutter, where printing is performed by a printing head mounted on a carriage sliding on guiding bars parallel to the printing line and a continuous printing support is fed transversely to the direction of the printing line andleans on a substantially vertical platen,characterized by that it comprises. - a lever mounted on,said sliding carriage; - a cutting roll mounted on said lever so as to be located over said printing head, downstream the printing line with a rotation axis substantially vertical; - a sharp edge, elongated in the direction of the printing line on said platen; - resilient return means coupled to said lever maintaining said lever and said cutting roll in a rest position apart from said platen; - actuating means for rocking said lever to bring said cutting roll in a cutting position where said cutting roll partially overlaps said sharp edge of said platen, and - feeding means for said continuous printing support located below said platen upstream said printing line, said return means having a reduced width as compared to the length of the print line, and exerting a local pressure on the continuous printing support, near below the cutting roll,
Claim 3
Dependent Claim 56 words
Serial printer as claimed in claim 1, wherein said resilient return means consists in a , resilient leaf fixed to said lever, partially leaning and urging against said platen, with an upper edge very close to the sharp edge of said platen, said leaf being provided with a recess in which the printing operation is performed.
Claim 4
Dependent Claim 31 words
Serial printer as claimed in claim 1 wherein said printing carriage is provided with a bushing coupling with one of said guiding bars, said bushing providing a pivot for said lever.
Claim 5
Dependent Claim 33 words
Serial printer as claimed in claim 1, wherein said platen consists in a prismatic bar having a vertical wing with a thickness on the order of few millimeters and an horizontal stiffening wing.
Claim 6
Dependent Claim 47 words
Serial printer as claimed in claim 4 comprising further a collecting drawer for collection of the forms cut from said continuous printing support, said drawer being located on the rear of said platen one side of said drawer being formed by said vertical wing of said platen.

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