JP2014091561A - Perforation structure having perforation structure for easily cutting plurality of sheets simultaneously - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cut structure by which force required in cutting a plurality of sheets simultaneously along perforations can be reduced and the sheets can be cut accurately along the perforations.SOLUTION: A sheet-like object has perforations for cut on each sheet, and is formed of a plurality of sheets by stacking sheets so as to be cut simultaneously along the perforations for cut. The perforations for cut are formed by shifting positions of a cut part or a hinge part on each sheet. Thereby, a perforation structure can reduce force required to cut a sheet piece along the perforations, and enables the sheet piece to be accurately cut along the perforations as compared with the case of overlapping and simultaneously cutting the plurality of sheets having a same perforation structure.

Description

  The present invention relates to a perforation structure for cutting a plurality of sheets at the same time. More specifically, the perforation of a plurality of sheets is polymerized, and the position of the cut portion or the hinge portion of the perforation is shifted for each sheet. Accordingly, a plurality of sheets can be accurately cut along the perforation by a relatively weak force at the same time. The present invention can be applied to sheets of any material such as paper, synthetic paper, and synthetic resin film. Specifically, envelopes, packaging bags, forms, etc., cutting of reused parts, slips of slips, etc. It can be widely applied as a perforation used for separation.

Open the packaging bag, container or letter to remove the contents, cut out the necessary slips from the bundle of forms, cut out the unnecessary part of the letter, and use the remaining or cut part. It has been well practiced to provide a cutting line composed of eyes.
For sealed letters and forms, for example, two sheets of upper and lower sheets that meet the specified weight of the postcard are pasted together, and the upper and lower sheets are connected to each other via a slit in which only the upper sheet is half-cut. A delivery slip (Patent Document 1) or three sides opened so that the postcard can be separated from the delivery slip by connecting the sticker slip and the postcard portion through the perforation through the paper. A sealed letter (Patent Document 2) that can be cut and opened by a perforating line and that is provided with anti-slip by embossing in the region between the opening perforation on the three sides and the edge of the sealed letter has been proposed.

  With regard to containers, for example, the side edges of the sheet member are bonded via a glue margin provided on one side edge so that the cross-section is a quadrangle, and a rectangular tube having a front surface, a bottom surface, and two side surfaces, In a packaging container comprising a flap formed by extending both ends of a rectangular tube, and forming a first lid and a second lid of the rectangular tube by the flap, the longitudinal direction of the packaging container A volume-reducible packaging in which an opening perforation is provided in the middle position across the front surface, bottom surface, and one side surface, and a push-off perforation that connects both end portions of the opening perforation is provided on the other side surface. Containers (Patent Document 3) have been proposed.

  In addition, when cutting a single sheet in the middle, it is known that two perforations are provided approximately in parallel to facilitate cutting at the perforated part, and, for example, the insertion property into a wrap film is impaired. In order to reduce friction with the hand, etc., the edges of both ends of the blade crest are arc-shaped, and in order to suppress the arc-shaped propagation of the wrap film, a notch that separates the lid cover piece from the opening piece A wrapping film storage box (Patent Document 4) with a double perforation parallel to the shape of a pressure-sensitive adhesive tape roll used for peeling or cleaning a label attached to a cylindrical shape on a PET bottle or bottle. A thin film or tape that is wound in a roll shape and peeled off at approximately one rotation for use in advertising or packaging that can be easily peeled off in a single operation. Cut off The structure of the perforation for peeling, in which two perforations having eyes are formed almost in parallel to form a peeling introduction part, and a peeling guiding part for facilitating peeling of the sheet or tape is provided on a part of one perforation ( Patent Document 5) has been proposed.

JP 2008-265128 A JP 11-48647 A JP 2008-290769 A JP 2007-326588 A Japanese Patent Laid-Open No. 22008-44669

Compared to the case of cutting along the perforation in the above-described prior art, that is, the present invention is more accurate than a case where a plurality of sheets having the same perforation structure are polymerized and cut simultaneously. The present invention seeks to provide an improved perforation so that it can be cut along the perforation.
Cutting papers by providing perforations tends to be seen as a simple technique, but it is difficult to form perforations that can be cut accurately without requiring strong force In the past, technical improvements have been proposed for many products. However, when cutting a plurality of sheets at the same location at the same time, a large force is required, and when a large force is applied to the perforation, the cutting line is often erroneously shifted to a location other than the perforation. Have been experienced.
The present inventors have made intensive efforts to improve such problems of the prior art, thereby solving these problems and cutting a plurality of sheets accurately along the perforation with a weak force. The purpose is to develop a cutting line that can be used.
In addition, since the present invention does not require a large force for cutting, it can be applied to a sheet material such as a low-strength paper, and even when a strong force is applied to the perforation, the cutting is performed with the perforation removed. It is intended to provide a perforation that is not only difficult to occur but also has a clean cut surface and no injuries such as hand cuts.
Furthermore, the present invention intends to provide a cutting structure comprising perforations that can be widely applied to articles using sheets such as envelopes, forms, packaging boxes and bags.

The present invention relates to a sheet-like material having the following specific perforation structure (1) to (10).
(1) A sheet-like product comprising a plurality of sheets each having a perforation for cutting for each sheet, and the sheets stacked so as to be cut simultaneously along the perforation for cutting. By cutting the position of the cut part or hinge part every time, the sheet piece is cut along the perforation as compared with the case where a plurality of sheets having the same perforation structure are superposed and cut simultaneously. A sheet-like object characterized by having a perforation structure that can reduce the force required for the operation and that can accurately cut the sheet piece along the perforation.
(2) The sheet-like object according to (1), wherein the perforation for cutting is provided at a location where the plurality of sheets are joined and integrated.
(3) The sheet-like material according to (1), wherein the cutting perforation is provided at a location where the plurality of sheets are separated.
(4) In the perforation provided at a portion where a plurality of sheets are overlapped and at the end of the sheet, the notches or hinges of the perforations of the plurality of sheets are synchronized (1 ) To (3).
(5) The sheet-like material according to (4), wherein a portion where a plurality of sheets overlap is formed by folding the sheet.
(6) The sheet-like material according to (4) or (5), wherein the perforation at the end is started from the cut portion.
(7) The sheet-like material according to any one of (1) to (6), wherein the perforations before and after the portion where the perforations form an acute angle are cut portions.
(8) The sheet-like material according to any one of (1) to (7), wherein the sheet-like material is an envelope, a packaging bag, a container, or a form.
(9) The sheet-like object according to (8), wherein a perforated cut portion or a hinge portion is synchronized around an end portion formed of a plurality of sheets.
(10) The sheet-like material according to (8) or (9), wherein the perforation cutting start point at the end portion formed of a plurality of sheets is formed from the cut portion.

According to the present invention, as compared with the case of cutting along the perforation in the prior art, that is, compared to the case where a plurality of sheets having the same perforation structure are polymerized and cut simultaneously, the perforation can be accurately performed even with a weak force. It is possible to provide a sheet-like material having an improved perforation so that it can be cut out along the line.
In addition, according to the present invention, since a large force is not required for cutting, it can be applied to a sheet material such as a low-strength paper, and even when a strong force is applied to the perforation, the cutting is performed by removing the perforation. In addition, it is possible to provide a sheet-like material that has a perforation that is not easily caused, and has a clean cut surface that does not cause hand injury or the like.
Furthermore, according to the present invention, it is possible to provide a sheet-like material having perforations that can be widely applied to articles using sheets such as envelopes, forms, packaging boxes and bags.
As described above, the perforation structure for cutting included in the sheet-like material of the present invention has the following effects.
(1) Normally, a large force is required according to the number of sheets to cut a plurality of sheets at the same place at the same time, but the cutting perforation structure of the sheet-like material of the present invention has a relatively small force. Sheets can be cut simultaneously.
(2) Since a large force is not applied to the perforation, the cutting line is not mistakenly shifted to a place other than the perforation, and accurate cutting along the perforation is possible with a weak force.
(3) Even when a sheet material such as paper having a low strength is used, it is difficult for cutting to occur when the perforation is removed.
(4) The cut surface is clean and can provide perforations that do not cause injuries such as hand cuts.
(5) The material of the sheet is not selected.
(6) Applicable to a wide range of articles such as envelopes, forms, packaging boxes and bags.

The cross section etc. of the cutting structure of this invention are shown typically. The example which applied this perforation to opening of an envelope is shown. The external appearance of the envelope for reusing the part cut off by cutting off a part of used envelope is shown. The expanded view of the envelope which can cut off a part of used envelope and can utilize it as a book cover is shown. An example in which a perforation is formed at a position different from the envelope of FIG. 3 in an envelope for reusing a portion cut by cutting a part of a used envelope. FIG. 6 is a development view of the envelope shown in FIG. 5, in which the book cover can be cut off. The external appearance of the envelope which can cut out the file for documents is shown. Indicates the state where the document file is disconnected. The external appearance of the slip which applied the perforation of the present invention is shown. The cross-sectional shape of the slip of FIG. 9 is shown. The expanded view of the envelope which can cut out the file for documents is shown. FIG. 12 is an enlarged view of a portion B1 in FIG. 11, showing that the cut portion or the hinge portion in the vicinity of the left and right of the fold is synchronized, and that their positions are shifted in the distant portion. The structure of the perforation in the vicinity of the envelope end B41 and the enlarged view of the cutout portion R are shown. The structure of the perforation at the end B42 of the envelope is shown. The structure of the perforation in the bent part B32 is shown. The structure of the perforation in the bent part B31 is shown.

  The present invention relates to a perforation structure for cutting capable of simultaneously cutting a plurality of sheets along a perforation, wherein the perforations of the plurality of sheets are polymerized, and a cut portion or a hinge portion of each perforation sheet The perforation structure for cutting a sheet-like material that can reduce the force required to cut a plurality of sheets along the perforation and can accurately cut along the perforation. About. The cutting perforation structure of the present invention is useful for opening envelopes, packaging bags, containers, forms, etc., cutting and removing unnecessary parts and effectively using the remaining parts, or cutting and using necessary parts. It is.

  In order to cut out a plurality of sheets of envelopes at the same time, it is usually performed by applying a force along the perforation with a fingertip to separate them from the perforation. Cutting multiple sheets at the same time is affected by the material, thickness, and perforation length of the sheet, but usually requires a stronger force than cutting a single sheet. . Then, when it is in a situation where a strong force cannot be exerted on the fingertip, it becomes difficult to cut out. In addition, if an attempt is made to cut off with a strong force, an excessive force may be applied to the cut portion, and everyone has experienced that the cut line often comes off the perforation. The present invention provides a simple cutting perforation structure that can eliminate such disadvantages. As the sheets that can be used in the present invention, paper is representative, but the type and thickness thereof are not selected, and the sheet can be widely applied to synthetic paper, synthetic resin sheets, and the like.

  The perforation of the present invention is composed of a series of continuous cut portions formed in a sheet-like material such as paper and a hinge portion between the cuts so as to be easily separated. The perforations of the plurality of sheets are formed by overlapping on the same line so as to overlap each other, and are formed so that the positions of the cuts or hinges of the perforations of each sheet are shifted or not synchronized. Therefore, when cutting along the perforation, it is not necessary to cut all the hinge portions of the plurality of sheets at the same time, so that a strong force is not required.

[Description of Principle of the Present Invention]
An example of the perforation structure for cutting according to the present invention will be described schematically with reference to FIG. FIG. 1 shows an example in which two sheets (b1) and (b2) are overlapped, and the perforation is formed on both the sheet (b1) and the sheet (b2). When the perforation is viewed from the upper surface of the sheet, the cut portion 21 of the sheet (b1) can be seen on the dotted line as shown in (a). The positions of the perforations in the sheet (b1) and the sheet (b2) are superimposed on the same line. In FIG. 1, a portion A is a portion in which the positions of the cut portions 11 and 12 and the hinge portions 21 and 22 of the upper and lower perforations are shifted, and is a portion that best shows the features of the present invention. The part B shows the part where both are formed in synchronization. The portion B where the cut portion or the hinge portion is formed at the same position is formed, for example, at a portion where cutting is started at the end of an envelope or the like, and A is formed at a portion cut inside the envelope. Yes.
(C1) and (c2) in FIG. 1 are schematic views showing the notches 11 and 12 as valleys and the hinges 21 and 22 as peaks. In order to cut along the illustrated perforation, first, the cutting is started from the cutting portions 11 and 12 of B, which is a cutting start portion, and then proceeds to A inside. B part is a part provided as needed, and can start from a notch part or a hinge part. By providing the perforation so that the end portion is formed by the cut portion, the start of cutting from the cut portion is prepared. In addition, when the end portion starts from the hinge portion, it is possible to prevent the cutting from being started naturally during the conveyance.

In envelopes, packaging bags, packaging boxes, and the like that use the perforation structure for cutting of the present invention, the perforation is natural even if force is applied to the perforation when transported in a state in which an article is stored inside. It is preferable that the cutting start end is set with a high strength so as not to be damaged. Therefore, at the end portion B, the notch portions and the hinge portions of the upper and lower sheets are synchronized, and the hinge portions 21 and 22 of the two sheets must be damaged at the same time. However, it is preferred that the endmost part starts from the notch. In the illustrated example, first, cutting is started from the cut portions 11 and 12, and the hinge portions 21 and 22 are simultaneously cut. Subsequently, it progresses to a notch part. When the cutting reaches A, the part to be cut is a combination of the hinge part 22 and the cut part 11, and the cutting can be performed only by cutting one of the hinge parts 22 in (b1) (b2) or (c1) (c2). proceed. Therefore, in A, the force required for cutting is half that of B.
The end of B, which is the starting point for cutting, starts with a strong hinge when there is a strong risk of being naturally opened from the end when using envelopes, and is cut when there is no such risk It is preferable to start from the part.

[Details of perforations]
In the present invention, the perforations formed in each sheet are superposed on the same line, and at the same time, the cut portion or the hinge portion between the sheets is displaced. It is not necessary to accurately polymerize the perforations between the sheets, but it is preferable to match them as much as possible in order to concentrate the force required for cutting along the perforations.
The lengths of the preferable perforated cut portion and hinge portion are appropriately determined according to the material of the sheet, the thickness, the state of the cut end after cutting, etc., for example, the length of the cut portion is 1.5 to The thickness is preferably 5.0 mm, more preferably 2.0 to 3.0 mm. The length of the hinge part is preferably 0.4 to 2.0, more preferably 0.5 to 1.5 mm.
It is preferable that the length of the hinge part is in the range of 2.0 to 6.0 with respect to the length 1.0 of the cut part. For example, in the case of 100 g / m ² of paper, the specific length of the cut portion and the hinge portion is preferably 2.0 mm for the cut portion and 0.5 mm for the hinge portion.
The length of the incision part and the hinge part and the ratio of the incision part / hinge part are used to ensure the strength of the perforated part in regular use such as envelopes, and the perforation cutting strength and cross section after cutting. In order to affect the state, the above range is preferable.

It is preferable to increase the strength of a portion where cutting along the perforation is started so as not to be cut by a force applied during normal use such as an envelope. For this reason, it is preferable that the cut start portions are synchronized with the cut portions or hinge portions of the perforations of the plurality of sheets. For example, when an envelope is created by folding a single sheet, the fold line may be a cutting start location. In this case, the two sheets are separated and overlapped at the crease. Here, perforations are formed in advance so that the cut portion and the hinge portion are synchronized before and after the fold. In addition, at the location where the end of the sheet is bonded to form the end of the envelope, both the sheet ends are joined together, but the ends are arranged so that the two perforations at the sheet end are accurately synchronized. It is preferable to join. Moreover, it is preferable that the perforation which becomes the start of a cutting | disconnection starts from a notch part.
As for the notch part and hinge part in an edge part, 0.5-3.0 mm is preferable, for example, and it is preferable that it exists in the range of 1.0-2.5 mm. Moreover, it is preferable that a hinge part exists in the range of 0.5-2.0 mm, and also 0.7-1.5 mm. By selecting from this range, the strength of the cutting start location is ensured. Further, the length of the synchronized portion B is preferably in the range of 5.0 to 12.0 mm from the end, and more preferably in the range of 6.0 to 9.0 mm.

The perforation is often formed in a straight line, but may be formed in a curved line. For example, a curve is formed at a place where straight perforations intersect, and a mountain shape or a valley shape is formed at other portions as necessary. For example, when the mountain shape or the valley shape is a curve of about 20 mm or less, a perforation may be formed with the straight line portion before changing from the straight line to the mountain shape or the valley shape as a cut portion. preferable. Moreover, it is preferable that the perforation at the place where the perforation changes from the straight portion to the straight portion at an acute angle is formed by a cut portion in most of the perforations before and after the change.
Next, the case where the perforation structure for cutting according to the present invention is applied to envelopes will be specifically described. Needless to say, the present invention can be applied to packaging bags, containers, and the like.

[Example 1 applied to envelopes]
The cutting perforation structure of the present invention can be applied in a wide range such as various envelopes, packaging materials, and packaging boxes, and examples applied to envelopes will be described below. FIG. 2 shows an example in which a cutting line (opening line) composed of perforations is provided in the body part across the envelope. After storing an article or document in a sealed envelope and transporting it, the recipient can cut it from the perforation line 15 and open it. The cutting line is composed of perforations, and in the envelope central part A, the perforations or hinges of the upper and lower sheets are provided with their positions shifted. At the end B portion of the envelope, a cut portion and a hinge portion that are vertically overlapped are formed in synchronization. Since B part consists of the edge part of an envelope, it becomes a cutting start part, and since the force at the time of opening may be applied strongly, the intensity | strength is enlarged. Part A can be cut with a relatively weak force. In this type of envelope, the two sheets are separated and not joined at the perforation. The perforation is formed in the sheet in advance so as to have a predetermined structure when it becomes an envelope.

[Example 2 applied to envelopes]
Packaging materials such as envelopes once used can be used as other types of articles. For example, printing that can be used as a book cover on the inner surface of an envelope is performed in advance, and the envelope is cut along a break line such as a perforation after use, thereby making a book cover with excellent design. it can. FIG. 3 shows an example of such an envelope. In this envelope, perforations 15a, 15b, 15c are formed continuously, and a rectangular piece of paper is cut out by starting cutting from the end B1 or B2. At this time, the perforation serving as the end portion of the envelope synchronizes the cut portion and the hinge portion, and the other portions shift the cut portion or the hinge portion. It is desirable that the portion where the perforation bends is a cut portion in advance so that it can be easily cut. Further, by forming a perforation so as to draw a large curve, a perforation similar to that of other straight line portions can be obtained.

  The envelope illustrated in FIG. 3 is assembled from the paper shown in the development view of FIG. The portion printed and cut inside can be used as a book cover. It consists of one sheet which consists of the front sheet 3 and the back sheet 4 which have a sealing part. The perforation is formed at the same time as or after cutting the envelope spread sheet. Thereafter, the sheet is folded at a fold line 16 and the front sheet 3 and the back sheet 4 are bonded to each other through the glue parts 8 and 9 to form an envelope. A continuous perforation composed of 15a, 15b, and 15c is formed on the outer periphery of the portion to be cut out as the book cover. The perforations before and after the folding line 16 where the envelope sheet is folded are formed such that the left and right cuts or hinges are synchronized when folded. That is, after the envelope is formed, polymerization is performed so that the perforations are on the same line at the end of the envelope where the front sheet 3 and the back sheet 4 are bonded together. At the same time, the perforations of the other parts are pasted together so that the positions of the notches or hinges are shifted when the front and back are joined.

[Example 3 applied to envelopes]
FIG. 5 illustrates an envelope having a perforation of a type different from that of FIG. 3, and the cut along the perforation may be started from any of the four end portions. The envelope shown in FIG. 5 also has a cutting start point at ends B3 and B4 where the front sheet and the back sheet are bonded with an adhesive at the end of the envelope. The edges B3 and B4, which integrate the sheet edges by bonding, are less likely to be inadvertently cut along the perforation when the envelope is used due to the unexpected increase in strength due to the increased strength. It is preferable to increase the strength by synchronizing the cut portion or the hinge portion of the sheet and the back sheet. In particular, it is conceivable that the strength of the portions that become B1 and B2 is weak at the fold portion at the center portion, and therefore it is desirable to have a perforation in which the cut portion and the hinge portion are synchronized. The other portions are provided with upper and lower sheet cut portions and hinge portions shifted in position. FIG. 6 shows a developed view of the envelope shown in FIG.

[Example 4 applied to envelopes]
FIG. 7 is a schematic plan view of an example in which the file 31 can be cut from a used envelope, and FIG. 8 is a view showing a state where the file 31 is cut along the perforation. As shown in FIG. 7, this envelope is a bag-like envelope having a structure substantially similar to that of a general fixed envelope. Specifically, in a state where a pair of front and back sheets are stacked, a right end portion 8 in which the end edges of the pair of sheets are connected, a lower end portion 9 in which the lower end edges of the pair of sheets are connected, It is an envelope which has the fold line 4 as a left end part. If you put an article such as a document through the opening formed between the top edges inside this envelope, fold the seal and stick it to the other sheet, you can seal the article inside the envelope. Envelopes can be used for mailing.

  In this envelope, a cutting line 15a is formed inside the upper edge. The cutting line 15a is formed by the perforation so as to be parallel to the upper edge of the envelope, and the upper and lower perforations 15a are overlapped with each other. A lateral perforation 15b is formed inside the envelope right end 8. The right perforation 15b is formed between the perforation 15a and the lower end 9 and parallel to the right end 8. The upper and lower perforations 15b are also formed so as to overlap vertically. The perforation at the right end of the upper sheet of the envelope is formed with a cut-out portion Q so that the opening can be smoothly made when it becomes a document holder. A cutout portion R is provided for preventing the force from being concentrated on the joint portion at the lower end.

  The envelope can be opened by cutting the envelope along a perforation. After the upper edge of the envelope is cut off, the file can be separated from the envelope by cutting off the right end 8 along the side perforation 15b (FIG. 8). The file 31 has a shape having an opening continuous at the upper end and the right end thereof, and has a shape substantially similar to a commercially available document holder having two sides as openings.

  If the envelope of this embodiment is used, it can be used as it is as a document holder for filing a document sent together with the envelope from a mailed envelope. In addition, since the file can be used as a document holder for filing another document, the envelope can be reused.

  The cutting line formed in the envelope is formed by perforations, and the perforations of the upper and lower sheets are superposed and the positions of the perforations or hinges of each sheet are shifted. In particular, in B and C, which are envelope ends where perforation cutting is started, the cut or hinge portions of the upper and lower perforations are synchronized. In the place where the shape of the cutting line changes, it is preferable to make the perforation of the sheet into a cut portion. Moreover, in the location where the perforation changes its path to an acute angle, accurate cutting is facilitated by making the front and rear of the corner part into a cut part. It is preferable that a notch is formed immediately before the perforation of the envelope changes to a small semicircular shape, and the front and rear are the notch before and after the perforation changes sharply.

[Sheet material used for envelopes]
The material of the sheet such as an envelope is not particularly limited, and any material may be used, but paper can be raised as the closest material. There are various types of paper, and any paper can be used as long as it is in a range often used as a material for envelopes, packaging materials, containers and the like. The preferred paper can be used in the present invention, for example, fine paper of 127.9 g / m ² in basis weight, 100 g / m ² bleached kraft paper, 85 g / m ² semi-bleached the like kraft paper and the like, envelope or wrapping Extremely thick or thin paper that cannot be used in the container is not preferred. Light-transmitting resins such as polypropylene (PP), polyethylene terephthalate (PET), and plastic can be used as the material. For example, the file 31 can be used as a document holder through which the inside can be seen, a so-called clear file. it can. Then, since the contents can be easily confirmed when the file 31 is used, the probability of reuse can be increased. Even if it is transparent, it is possible to hide the inside by printing on the surface of the sheet. Further, synthetic paper or the like can be used.

[Example applied to forms]
Forms are documents that are created to record withdrawals, deposits, shipments, deliveries, etc. as records, and to notify the other party, such as receipts, journals, deposit / withdrawal slips, sales slips, invoices, receipts. Various types of materials such as letters and invoices are included. Information systems in companies are managed electronically, but a system that creates and prints paper forms and uses them as a transmission medium is still functioning. .
For forms, the same type of slips (for example, receipts) are closed together to form a single volume. When used, they are often used separately from perforations. For forms and sales forms, different forms of slips form a set, and after entry, a plurality of slips are separated and handed to the necessary departments, or delivered to the next department to make the next arrangement. At this time, a plurality of slips are simultaneously separated from the perforation.

Specifically, delivery slips include slips that are attached to items with a delivery address, slips that are handed over to the client, copy slips of the store that received the package, copy of the delivery manager, etc. For example, it may be necessary to cut out a slip and a copy slip to the delivery requester at the same time. Although it is necessary to take care not to damage the slip when perforating a plurality of slips, the use of the cutting structure of the present invention makes it possible to accurately separate a plurality of slips even with a weak force.
FIG. 9 shows an appearance of an example of a delivery slip. This voucher is a form in which four vouchers 32 are combined at the left end on the mount 33, and at the time of use, three consecutive sheets are cut out along the perforation 15 at the same time. At this time, the perforations of the three slips can be accurately cut out at the same time with a relatively weak force by providing the respective notch portions or hinge portions shifted in position. To do. FIG. 10 shows a cross section of the slip shown in FIG.

  Hereinafter, the present invention will be described with reference to specific examples, but the present invention is not limited to these examples.

A specific description will be given of the perforation of the envelope capable of forming a paper file by cutting along the perforation shown in Example 4 applied to the envelope.
As shown in FIG. 7, the completed envelope has a right end and a lower end joined together with an adhesive, the left end comprises a bent portion, and the upper end forms an opening. The perforation 15a is a straight line from the left end portion to the right end portion, bends at a right angle downward to become 15b, reaches the lower end portion, and crosses a portion joined by an adhesive or the like at the lower end. FIG. 11 is a development view of the envelope. The envelope is formed by folding the sheet from the fold line and overlapping and joining the joining portions 8 and 9 at the end portions. At the same time, the upper and lower perforations are superposed and bonded together so that the positions of the cuts or hinges of the perforations between the sheets are shifted and the ends are synchronized. For this purpose, the left and right end portions 8 and the lower end portion 9 of the sheet are accurately overlapped to form a superposition state, and when the sheets are bonded, the relationship between the cut portion of the perforated perforation or the hinge portion becomes a predetermined one. Thus, perforations are formed in advance. The right sheet in FIG. 11 is provided with a semicircular cutout portion Q and a triangular cutout portion R.

  The perforations shown in FIG. 11 are basically formed by alternately forming 2 mm cut portions and 0.5 mm hinge portions, and the cut portions or hinge portions of 15a and 15b overlap and overlap each other. It is formed as follows. Details of the perforations at B1, B31, B32, B41, and B42 are shown in FIGS. The left and right sheet pieces are bent and the perforations overlap, and an enlarged view of B1 of the fold portion serving as an end portion serving as a starting point of cutting is shown in FIG. When the width is 9 mm from the crease 16 to the left and right, a 2 mm long cut portion and a 1 mm hinge portion are provided. When an envelope is formed, the cut is located at the end. That is, a continuous 4mm incision part of 2mm is provided on both sides of the crease, and two 2mm incision parts are provided on the left and right sides. It is like that.

  FIG. 13 is an enlarged view of B41 in the development view, and FIG. 14 is an enlarged view of B42. 13 and 14 are provided with perforations so that the cut portions or hinge portions of the upper and lower sheets are synchronized with each other and the other portions are not synchronized with each other. The cut-out portion R shown in FIG. 13 is a small-shaped portion, a sharp change is provided in the perforation, and a small hinge portion is provided in the middle. Therefore, most of the cut-out portion R is formed by the cut-out portion. . In addition, the cut portion Q is provided with a cut start portion in an arc shape, a straight portion changing from a straight line to an arc is provided with a cut portion, and the arc portion is a repetition of a 2 mm cut portion and a 0.5 mm hinge portion. It is made up of. In this way, a semicircular and approximately triangular cut is provided at the vertical end of the front sheet that is cut from the envelope and becomes a file. 3 mm at the base where the perforation changes to a semicircular shape can eliminate the error of the cutting line at the end that changes when cutting along the perforation as a cut portion. Moreover, it is preferable that the periphery of the portion having a perforation that changes at an acute angle, such as a triangular portion, is mainly formed by a cut portion as seen in FIG.

  FIG. 15 shows an enlarged view of a portion corresponding to B32 in FIG. 11, and FIG. 16 shows an enlarged view of a portion corresponding to B31 in FIG. B31 and B32 have perforations formed in an arc shape. This portion is also composed of a cut portion having a length of 2 mm and a hinge portion having a length of 0.5 mm, and is formed such that the cut or hinge portions of the upper and lower sheets are shifted and overlapped. A perforation extending from a horizontal perforation to a position serving as an opening end of the sheet end is provided such that the cut portion or the hinge portion is synchronized. Here too, it is preferable to use a notch at the extreme end.

  The present invention relates to a cutting structure capable of reducing the force required to cut a sheet piece along the perforation and accurately cutting along the perforation, and simultaneously cutting a plurality of sheet-like objects along the perforation. Therefore, any article that uses cutting and utilizes perforation can be applied. The cutting perforation structure of the present invention can be widely applied to envelopes, packaging bags, containers, forms, etc., and is suitable for reuse of envelopes, packaging bags, and other uses after opening. The structure is provided, and can be applied to bags for transporting agricultural products and containers.

DESCRIPTION OF SYMBOLS 1, 11, 12: Perforation cut-in part 21, 22: Perforation hinge part 15, 15a, 15b, 15c: Perforation 8, 9: Joint part 3: Front sheet 4: Back sheet 16: Fold 32: Voucher 33: Mount B: Perforated portion of envelope perforation or hinged portion B1, B2: Envelope end B3 formed by fold, B4: Envelope end Q, R formed by joining sheets : Cutout part (a): Appearance of perforation (b1), (c1): Upper sheet (b2), (c2): Lower sheet

Claims (10)

Each sheet has a perforation for cutting, and is a sheet-like material composed of a plurality of sheets stacked so as to be cut simultaneously along the perforation for cutting. The perforation for cutting is cut for each sheet. It is necessary to cut the sheet piece along the perforation as compared with the case where a plurality of sheets having the same perforation structure are overlapped and cut at the same time by providing the shift portion or the hinge portion in a shifted position. A sheet-like object characterized by having a perforation structure that can reduce force and that can accurately cut a sheet piece along a perforation.   2. The sheet-like object according to claim 1, wherein the cutting perforation is provided at a location where the plurality of sheets are joined together.   2. The sheet-like object according to claim 1, wherein the cutting perforation is provided at a location where the plurality of sheets are separated.   4. The perforation provided in a portion where a plurality of sheets are overlapped and which is an end portion of the sheet is synchronized with a cut portion or a hinge portion of the perforations of the plurality of sheets. The sheet-like material in any one.   The sheet-like object according to claim 4, wherein a portion where the plurality of sheets overlap is formed by folding the sheet.   The sheet-like material according to claim 4 or 5, wherein the perforation at the end portion is started from the cut portion.   The sheet-like article according to any one of claims 1 to 6, wherein the perforations before and after the portion where the perforations form an acute angle are cut portions.   The sheet-like material according to any one of claims 1 to 7, wherein the sheet-like material is an envelope, a packaging bag, a container, or a form.   The sheet-like object according to claim 8, wherein a perforated cut portion or a hinge portion is synchronized around an end portion formed of a plurality of sheets.   The sheet-like object according to claim 8 or 9, wherein a cutting start point of a perforation at an end portion formed of a plurality of sheets is formed from a cut portion.