JPH1142588A - Continuous document cutter device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent generation of bending and wrinkling in a document after it is cut, in a device for inserting the continuous document through first and second feed rollers of different speed and cutting it between both rollers. SOLUTION: In this continuous document cutter device, between first/second rollers 2, 3, the width of an edge 4Aa in a lower end of a cutting member 4A arranged for giving a start of cutting, is broadened, to guide the total width of a continuous document 1 by this edge 4Aa. At the time of cutting the continuous document 1, springing up of both ends of the continuous document is prevented, so that the cut tip end, is smoothly bitten between upper/lower rollers of the second feed rollers 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a continuous form cutting apparatus for cutting a continuous form in which horizontal perforations are formed at regular intervals at the horizontal perforation position.

[0002]

2. Description of the Related Art Conventionally, after printing various information on a continuous form by a printing device, the continuous form is cut into individual forms and mailed and distributed. Normally, in a continuous form, horizontal perforations are formed at regular intervals in the longitudinal direction so that individual forms can be easily cut. As shown in FIG. 4, a conventional apparatus used for cutting this kind of continuous form is a first feed roller 2 comprising a pair of upper and lower rollers for conveying a continuous form 1 at a constant speed.
And a second feed roller 3 disposed downstream of the first feed roller 2 and comprising a pair of upper and lower rollers for feeding a continuous form at a speed higher than the feed speed of the first feed roller 2. In between, a cutting member 4 is provided so that an edge 4a at a lower end thereof comes into contact with the continuous form 1, and the leading end of the continuous form 1 sent out by the first feed roller 2 is pinched by the second feed roller 3. When the sheet is conveyed by the second feed roller, a large tension is applied to the continuous form 1 due to the speed difference between the first feed roller 2 and the second feed roller 3, and at the same time, the horizontal perforation of the continuous form 1 is caused by the edge of the cutting member 4. At 4a, cutting was caused, and the horizontal perforation was cut. Here, since the cutting member 4 only needs to cause a cut in a part of the horizontal perforation, as shown in FIG. 5, the edge 4a at the lower end has a shallow substantially V-shape. The width was set smaller than the continuous form 1.

[0003]

However, in such a conventional apparatus, the leading end of the continuous form after cutting (the leading end of the continuous form remaining on the first feed roller 2 side) is moved to the second feed roller 3.
May not be properly pinched when pinched,
As shown in FIG. 6, the tip corner 1 of the cut form 1A is cut.
There has been a problem that a may be bent or a form may be wrinkled.

The present inventors have studied the causes of the above-mentioned problems and found that these problems have occurred for the following reasons. That is, when a continuous form is simultaneously nipped by the first feed roller and the second feed roller and cut by the speed difference between the two, the continuous form rampages due to the impact, particularly after both ends of the continuous form jump up and are cut. Since the leading end of the continuous form is sandwiched between the second feed rollers on the downstream side in a ragged state, there has been a problem that corners on both sides of the leading end where the rage is particularly large are bent or wrinkled.

The present invention has been made based on such knowledge, and it is possible to prevent the continuous form from being violent when cutting the continuous form, and to prevent the form from being bent or wrinkled. An object of the present invention is to provide a continuous form cutting device.

[0006]

According to the present invention, the width of an edge of a cutting member provided for giving a kick to the cutting when a horizontal perforation of a continuous form is cut is widened, and the edge is set to the entire width of the continuous form. It is configured to be in contact. In this way, by bringing the edge into contact with the entire width of the continuous form, when the continuous form is pulled and cut, the runaway of the continuous form is prevented over the entire width, and therefore, the cut form of the continuous form is cut. When the leading end is pinched by the second feed roller on the downstream side, the leading end smoothly enters between the rollers, thereby preventing bending or wrinkling of the corner of the leading end.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention relates to a first feed roller for transporting a continuous form and a second feed roller disposed downstream thereof for transporting the continuous form at a higher speed than the transport speed of the first feed roller. A continuous form cutting device that cuts a continuous form being conveyed at a horizontal perforation position formed in the continuous form by a speed difference between the first feed roller and the second feed roller. A cutting member having an edge that contacts the entire width of the continuous form is provided between the roller and the second feed roller. With this configuration, when the continuous form is cut by applying tension with the first feed roller and the second feed roller, the edge of the cutting member contacts and guides the entire width of the continuous form, thereby preventing the continuous form from becoming unsteady. However, when the leading end of the continuous form is sandwiched between the second feed rollers, the leading end of the continuous form smoothly enters between the rollers, and it is possible to prevent the leading end corner from being bent or wrinkled.

Here, it is preferable that a guide for guiding the continuous form bent by the cutting member to the second feed roller is provided between the position facing the edge of the cutting member and the second feed roller. If this guide is provided, the leading end of the cut continuous form is immediately guided by the guide toward the second feed roller at a position passing the edge of the cutting member, and the path of the continuous form is substantially S-shaped. As a result, the continuous form is pressed against the edge of the cutting member, and from this point, the runaway of the continuous form can be further prevented.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in more detail with reference to the embodiments of the present invention shown in the drawings. FIG. 1 is a schematic side view showing a continuous form cutting apparatus according to an embodiment of the present invention. FIG. 2 is a view taken along the line AA of FIG. 1, and the same parts as those of the conventional example shown in FIGS. The same reference numerals are given. 1 and 2, the continuous form cutting apparatus according to the present embodiment is also provided with a first feed roller 2 composed of a pair of upper and lower rollers for conveying the continuous form 1 at a constant speed, and a downstream side thereof, as in the related art. ,
A second feed roller 3 comprising a pair of upper and lower rollers for feeding a continuous form at a higher speed than the feed speed of the first feed roller 2
And a cutting member 4 </ b> A (hereinafter referred to as a blade) disposed between the first feed roller 2 and the second feed roller 3. Is applied to the continuous form 1, and the continuous form 1 is cut at a horizontal perforation formed at a constant pitch in the longitudinal direction.

However, unlike the prior art, the blade 4A used in the present embodiment is formed such that the edge 4Aa at the lower end thereof is wider than the width of the continuous form 1, as can be clearly understood from FIG. And the edge 4Aa
Is a paper line between the first feed roller 2 and the second feed roller 3 (a line on which a continuous form travels when the blade 4A is not provided, that is, a line indicated by a symbol C in FIG. 1 and a line CC in FIG. 2) It is installed so that it is lower than.
Further, a guide 6 for guiding the continuous form 1 bent by the cutting member 4A to the second feed roller 3 is provided between the second feed roller 3 and a position facing the edge 4Aa of the blade 4A.

In the continuous form cutting apparatus having this configuration, as shown in FIG.
When the leading end of the first feed roller 3 is nipped and conveyed by the second feed roller 3, a large tension is applied to the continuous form 1 due to the speed difference between the first feed roller 2 and the second feed roller 3, and at the same time, the continuous form The first perforation hits the edge 4Aa of the blade 4A to cause a cut, and the perforation is cut. At this time, as shown in FIG. 2, since the continuous form 1 is guided by contacting the edge 4Aa to both ends thereof, even if there is a shock of cutting, the continuous form 1 does not violently violate. The phenomenon that both ends jump up is suppressed. Next, the leading end of the continuous form 1 (the continuous form 1 sandwiched between the first feed rollers 2) after the separation is forcibly moved by the blade 4A as shown in FIG. Guided downward, lower guide 6
, Whereby the continuous form 1 is bent in a substantially S-shape, and the continuous form 1 is bent, and the continuous form 1 is pressed against the edge 4Aa of the blade 4A over the entire width thereof. The flutter of 1 is further suppressed. Thereafter, the leading end of the continuous form 1 is bitten between the upper and lower rollers of the second feed roller 3, but at this time, the leading end of the continuous form 1 is smoothly bitten between the upper and lower rollers since the leading end is not violent. . Therefore, the corners on both sides of the leading end of the form do not bend as shown in FIG. 6 or the form does not wrinkle. After the front end of the continuous form 1 is nipped by the second feed roller 3, the horizontal perforation of the continuous form 1 is cut again by the speed difference between the first feed roller 2 and the second feed roller 3, as described above. Hereinafter, the same operation is repeated. As described above, continuous forms can be cut one after another while preventing bending and wrinkling of the forms.

In the above embodiment, the entire edge 4Aa of the blade 4A is substantially V-shaped.
The shape of “a” may be any shape as long as it has a pointed portion at least in part and can give a kicking edge to the horizontal perforation of the continuous form. Therefore, the entire edge 4Aa needs to be substantially V-shaped. Instead, for example, a change may be made such that both end portions are horizontal. Edge 4A
There may be a plurality of pointed portions of a.

[0013]

As described above, according to the present invention, the width of the edge of the cutting member is widened to guide the entire width of the continuous form. This has the effect that bending and wrinkling, which are likely to occur in the form, can be prevented.

[Brief description of the drawings]

FIG. 1 is a schematic side sectional view showing a continuous form cutting apparatus according to an embodiment of the present invention.

FIG. 2 is a view taken in the direction of arrows AA in FIG. 1;

FIG. 3 is a schematic side sectional view showing a part of the cutting device shown in FIG. 1 in a state immediately before cutting a continuous form;

FIG. 4 is a schematic side sectional view showing a conventional continuous form cutting apparatus.

5 is a view taken in the direction of arrows BB in FIG. 4;

FIG. 6 is a schematic perspective view showing a leading end portion of a form cut by a conventional apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Continuous form 2 First feed roller 3 Second feed roller 4, 4A Cutting member 4a, 4Aa Edge 6 Guide

Claims (2)

[Claims] A first feed roller for conveying a continuous form;
Downstream of the first feed roller, and a second feed roller for feeding a continuous form at a speed higher than the feed speed of the first feed roller, and a speed difference between the first feed roller and the second feed roller causes a continuous feed during the feed. In a continuous form cutting device for cutting a form at a horizontal perforation position formed in the continuous form, a cutting device having an edge that contacts the entire width of the continuous form between the first feed roller and the second feed roller. A continuous form cutting device comprising a member. 2. A guide for guiding a continuous form bent by the cutting member to the second feed roller is provided between a position facing the edge of the cutting member and the second feed roller. 2. The continuous form cutting device according to 1.