WO2001085559A1

WO2001085559A1 - Envelope

Info

Publication number: WO2001085559A1
Application number: PCT/JP2001/003817
Authority: WO
Inventors: Hiroaki Goto
Original assignee: Rabbit Shikousya Co., Ltd.
Priority date: 2000-05-08
Filing date: 2001-05-07
Publication date: 2001-11-15
Also published as: US20020158113A1; TW555670B; JP2002029544A; KR20020029070A; CN1372521A

Abstract

An envelope, wherein a sheet is double-folded so as to form a front sheet (10) having an address surface and a rear sheet (11) having a folded-up surface, a sealing area (S) having an opening (17) is provided between the front sheet (10) and the rear sheet (11), the opposed surfaces of the front sheet (10) and the rear sheet (11) are stuck directly to each other at the side parts (f2) thereof excluding the opening (17) and a folded line (13), and the front sheet (10) and the rear sheet (11) are generally overlapped with each other so as to form the generally entire area of the sealing area (S) with the same number of sheets.

Description

Light

Envelope

Technical field

The present invention relates to an envelope, and more particularly to an envelope capable of suitably printing by directly passing through a printer. Rice field

Background art

Conventionally, standard or non-standard envelopes are made by appropriately bending a single 'sheet', so that the basic structure is inevitably common. Various types such as pasting and diamond pasting are known. For example, the one shown in Fig. 1 belongs to a type called force-mass sticking, and one sheet of paper is folded and glued to form a front sheet 1 with an addressing surface and a back sheet with a folded surface. 2 and flap 3 are formed. This envelope is completed by bonding the front sheet 1 and the back sheet 2 via the glue allowance A extending from the side edge of the front sheet 1 in the case of a normal fixed form or the like.

In recent years, computers have become remarkably popular not only for office work but also at home, and in response to this demand, computers have become widely used. In addition, with the spread of prints, it is becoming increasingly common to print addresses as well. In addition to the address, the sender's logo and decorations were printed regardless of the envelope. There is also a demand that it is not.

However, in the conventional envelope as shown in Fig. 1, for example, the portion corresponding to the adhesive margin A becomes three sheets of paper, and the center part becomes two sheets, resulting in a difference in thickness. And As a result, when the envelope is passed through the rollers, a gap is formed between the rollers in the central portion, which is a printing portion, and it may not be possible to perform clear printing. Also, when passing between the feed rollers, wrinkles may occur due to the difference in waist caused by the difference in thickness, the ink fixing degree may change due to the difference in thickness, and the characters may be disturbed at the steps and portions. In some cases. Further, since the front sheet and the back sheet overlap with each other via the left and right adhesive margins, the degree of adhesion between the sheets is poor, and the sheet sent to the driving roller and the driven roller are There is also a problem that smooth feeding and accurate printing cannot be performed due to slippage of the sheet to be fed and a difference in feeding amount. Similar problems occur because the above-mentioned various known envelopes always have a margin for glue and have portions having partially different thicknesses, and such problems occur particularly in laser printers. Will be noticeable.

The present invention has an object to solve the above-mentioned conventional problems. Therefore, even if the present invention is applied to a widely used printer, it is possible to print an address or the like reliably. Is to disclose. Disclosure of the invention

In the present invention, in order to achieve the above-mentioned object, the sheet is folded in two to form a front sheet having an address surface and a back sheet having a folded surface. A sealing area having an opening is provided between the back sheets, and the opposing surfaces of the front sheet and the back sheet are directly adhered to each other at the sides except the opening and the folding line. In addition, the front sheet and the back sheet are substantially overlapped with each other, so that substantially the entire area of the enclosed area is constituted by the same number of sheets.

In such a case, the front sheet and the back sheet are directly attached to each other without interposition of glue so that the thickness becomes uniform, so that the conventional sheet is used. Effective printing problems caused by the presence of different thicknesses on the print surface, i.e., wrinkles, changes in the ink fixation degree, and irregular printing at the steps Can be prevented. In addition, since the degree of adhesion between the front sheet and the back sheet is much better than that of the conventional sheet, even when passing between the printer and the roller, slippage does not occur, and a smooth feed is achieved. You can do it. Furthermore, since there is no glue allowance, the spread sheet becomes rectangular or nearly rectangular, and the yield when cutting the spread sheet from the base paper is improved. In addition, the manufacturing process can be simplified because the step of bending the adhesive margin can be omitted. In addition, opening from the side is also possible with the capacity to peel the front and back. Rice cake Needless to say, there is no difference in thickness when writing addresses by hand, so it is very suitable.

On the other hand, with the structure described above, the front sheet and the back sheet almost overlap each other, so the opening is difficult to expand. Parts may be peeled or torn. In order to prevent such a problem, it is preferable that a notch is provided at an edge of the back sheet facing the opening.

Even if the opening is closed by a flap, to ensure that the thickness is uniform, a flap for closing the opening of the enclosed area is placed on the back sheet. It is conceivable to make them fit together.

On the other hand, if the front sheet and the back sheet have completely the same shape, depending on the bending accuracy, the back sheet will pop out on one side due to misalignment during bag making and misalignment. U. If this envelope is applied to a printer, this protruding portion will cause an obstacle, causing a paper jam inside the printer or roller wrinkling, and reliable printing. I can't do it. To prevent this problem, a back sheet and a flap are formed on both sides of the front sheet via folding lines, and these front and back sheets are directly glued. In addition, it is desirable that the back sheet is formed as an undercut having a width gradually narrowed from the folding line or a place apart from the folding line by a predetermined distance. If the back sheet is gradually narrowed from the fold line in this way, even if there is a slight error when the envelope is cut in half from the fold line at the time of envelope production, it will change from the front sheet to the back sheet. This is because it is possible to prevent the sheet from jumping out.

Here, "gradually narrowing" is a concept that also includes ones that gradually narrow in width. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a development view showing a conventional envelope.

FIG. 2 is a developed view showing an envelope according to the first embodiment of the present invention.

FIG. 3 is a completed view showing the envelope in the embodiment.

FIG. 4 is a development view showing an envelope according to the second embodiment of the present invention.

FIG. 5 is a completed view showing the envelope in the same embodiment.

FIG. 6 is a development view showing an envelope according to the third embodiment of the present invention.

FIG. 7 is a developed view showing an envelope according to a fourth embodiment of the present invention.

FIG. 8 is a completed view showing the envelope in the same embodiment. ¹

FIG. 9 is a perspective view showing how to use the envelope in the embodiment. FIG. 10 is a developed view showing an envelope according to another embodiment of the present invention.

FIG. 11 is a development view showing an envelope according to still another embodiment of the present invention.

FIG. 12 is an assembling diagram showing a case in which a bending error has occurred in the envelope according to the first embodiment of the present invention.

FIG. 13 is a developed view showing an envelope according to still another embodiment of the present invention.

FIG. 14 is a developed view showing an envelope according to still another embodiment of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. In the following embodiments, corresponding parts are denoted by the same reference numerals.

The envelope F according to this embodiment has a spread sheet ST folded in two as shown in a developed view (FIG. 2) and a completed view (FIG. 3) to form a front sheet 10 having an address surface. And a back sheet 11 are formed, and a sealing area S is provided between the front sheet 10 and the back sheet 11. The folding line 13 for folding in two is configured so as to correspond to the long side f1 of the envelope F, and the side edge which is the short side adjacent to the folding line 13 is used. At f2, the front sheet 10 and the back sheet 11 are joined to form the seal. The insertion region S is opened on the side opposite to the folding line 13.

On the other hand, from the long side f4 of the front sheet 10 facing the fold line 13, the flap 12 extends to the body through the second fold line 14. By folding back the flap 12 along the second fold line 14, the opening 17 of the enclosure area S can be sealed. is there.

In this embodiment, the short side of the front sheet 10 and the back sheet 11: an adhesive portion 20 is set on the opposing surfaces 10 b and 11 b of f 2, The front sheet 10 and the back sheet 11 are directly adhered to each other by applying an adhesive to the part 20. In order to completely enclose the encapsulation area S, the adhesive portion 20 extends over the entire short side portion f 2. However, depending on the application, the adhesive portion 20 is adhered to a part of the short side portion ί 2. There is no problem if you add some parts ο

In the present embodiment, the front sheet 10 and the back sheet 11 have the same shape, and when the envelope F is completed, the front sheet 10 and the back sheet 11 are mutually connected. It is configured to overlap with

In addition, conventional envelopes usually do not have tight folds in consideration of texture, etc., so the thickness of the folds becomes slightly large, and when many are stacked, the fold side is compared to the opposite side. However, in the present embodiment, the By bending the wire 13 more tightly than before, the thickness is made uniform, so that even when many sheets are stacked, the stacked envelopes F have the same thickness as a whole.

According to the present embodiment configured as described above, since substantially the entire area of the sealing area S is constituted by the same number of sheets, the thicknesses become equal, and the portions having different thicknesses as in the related art are reduced. It is possible to effectively prevent problems at the time of printing resulting from a certain situation, that is, wrinkles, a partial change in ink fixing degree, and disturbance of printing at a step portion. In addition, since the degree of adhesion between the front sheet 10 and the back sheet 11 is much higher than that of the conventional sheet, there is no deviation even when passing between the rollers and smoothness. You will be able to perform various feeds. In addition, no matter how many sheets are stacked, the stacked envelopes F have the same thickness, so that they can be stacked on the feeder for continuous printing without any problems. It is also preferable. Needless to say, there is no difference in thickness when writing addresses by hand, so it goes without saying that it is very suitable.From a manufacturing point of view, there is no glue allowance. The ST has a rectangular shape or a shape close to a rectangular shape, and the yield when cutting the spread sheet ST from the base paper can be significantly improved. In addition, since the step of bending and bending the adhesive margin can be omitted, there is also an effect that manufacturing can be simplified.

<Second embodiment> FIG. 4 shows an embodiment in which the envelope F of the present embodiment is developed. 10 is a front sheet having an addressing surface, 11 is a back sheet having a folded surface, and 12 is a flat sheet. The folding lines 13 and 14 are folding lines that are provided at the same time when the envelopes F are cut and formed one by one. Here, the front sheet 10 is an accurate rectangle, but the back sheet 11 is a tapered undercut that is gradually narrowed toward the opening 17 from the broken line 13. 15 is formed. Fig. 5 shows the structure shown in Fig. 4 where it was folded in half at the fold line 13 and both sides were glued together at the bonding part 20 with an adhesive to complete the envelope F. .

A particularly important technique in the structure of the present invention is that the back sheet 11 is not formed in a rectangular shape that coincides with the front sheet 10 but in a tapered shape that is gradually narrowed. If they are completely matched as in the first embodiment, as shown in FIG. 12, depending on the folding error, the back sheet 11 may protrude from the front sheet 10. As a result, the shape of the envelope F as a whole may be unexpectedly displaced, resulting in a poor appearance, and a problem in printing or the like. However, this configuration allows the back sheet 11 to jump out of the front sheet 10 even if a slight misalignment occurs when the machine is folded at the fold line 13. There is no. Therefore, as long as the shape of the front sheet 10 is accurate, there is no difference in the shape of the envelope F as a whole, and even when applied to a printer, it is supplied obliquely to the roller. Or Even if multiple sheets are stacked on the feeder, there is no protruding part, so that the problem of distorting and bending can be eliminated.

Third embodiment>,

FIG. 6 shows the third embodiment, and the start of the undercut 15 does not start from the fold line 13 but from the fold line 13 and the middle of the opening 17. The envelope, which has started, is formed one by one by die-cutting, and is machine-folded at the fold line 13 so that there is no excessive error in folding. Therefore, in this case, it is considered that the undercut 15 can be prevented from jumping out without necessarily starting from the polygonal line 13.

In order to obtain the same operation and effect as the above embodiment, as shown in FIG. 13, the side f2 of the back sheet 11 is stepped and the width of the back sheet 11 is reduced. The width may be reduced toward the tip, or as shown in FIG. 14, the width of the back sheet 11 may be set to be narrower than the width of the front sheet 10.

As shown in FIGS. 7 to 9, the envelope F according to the present embodiment has cutouts K on both sides of the long side portion 3 forming the opening 17 in the back sheet 11. . Specifically, the notch K is formed by cutting the long side portion f3 into a V-shape, and is set so as to be located slightly inward of the bonded portion 20. . In this way, opening 17 is expanded. When the opening 17 is expanded in order to insert or remove the inclusion OB, not only the opening 17 becomes large, stress acts on the notch K, and the bonding portion 20 The peeling force does not act directly. Therefore, even if the opening 17 is excessively widened, a break is formed from the notch K, and if the break is slight, the flap 12 is bonded to the back sheet 11. Since it is possible to cover more, it is possible to avoid a problem that the sealing area S cannot be sealed.

The size, shape, position, and the like of the notch K are not limited to this embodiment, and the notch K may be provided on only one side. <Other embodiments>

To keep the thickness even when the opening 17 is closed by the flap 12, open the enclosure 17 as shown in Fig. 10. It is conceivable that the flap 12 for closing is formed so as to substantially overlap the front sheet 10 or the back sheet 11. ,

Further, in each of the above-described embodiments, the description has been made on the assumption that the folding line 13 is a horizontally long envelope such that the folding line 13 corresponds to the long side portion f1. However, as shown in FIG. May correspond to the short side f 2. However, when envelope F is automatically manufactured using a bending machine, the length of the unfolded sheet ST becomes longer in this case. Large in F In some cases, the size is limited to be smaller than that of the above embodiment.

In addition, any method of bonding the front sheet and the back sheet may be used.In addition, the present invention uses only the completed envelope. It goes without saying that not only the object but also the double-sided state in which the adhesive surfaces on both sides are processed by the end user. Industrial applicability

As described in detail above, according to the present invention, the back sheet edges of the front sheet and the back sheet are directly attached to each other so that the thicknesses become uniform, so that the conventional technique is used. This can effectively prevent printing defects caused by the presence of parts with different thicknesses, i.e., wrinkles, and changes in the ink fixing degree and disturbed printing at steps. You. In addition, since the degree of adhesion between the front sheet and the back sheet is much better than that of the conventional sheet, no slippage occurs when passing between the print rollers, and a smooth feed is achieved. You can do it. Furthermore, since there is no glue margin, the yield when cutting the spread sheet from the base paper is improved, and the process of folding and bending the glue margin can be omitted. Manufacturing can also be simplified. In addition, it is possible to open from the side with the capacity to peel the front and back. Of course, there is no difference in thickness when writing addresses by hand It goes without saying that it is very suitable. In addition, if the back sheet has a width gradually reduced from the folding line or from a position spaced apart from the folding line by a certain distance, the front sheet and the back sheet are folded. Even if a folding error occurs when the wire is bent at a line, or a slight error occurs during die cutting, the undercut is applied, so that the back sheet does not fly out to the side. Even if this is used for printing addresses in the printer, paper jams and distortion can be reliably avoided.

Claims

The scope of the claims

1. A back sheet is provided integrally with a front sheet having an address surface via a fold line, and the enclosed area having an opening is bent along the fold line to form a front sheet and a back sheet. Formed in between,

The sides of the front sheet and the back sheet except for the opening and the fold line portion of the front sheet and the back sheet are directly attached to each other, and the front sheet and the back sheet are substantially overlapped with each other. An envelope characterized in that substantially the entire enclosed area is formed of the same number of sheets.

2. The envelope according to claim 1, wherein a notch is provided on both sides or one side of the back sheet forming the opening.

3. A flap for closing the opening of the enclosing area is integrally provided from a side of the sheet forming the opening through a second folding line, 3. The envelope according to claim 1, wherein the flap has a shape substantially overlapping a back sheet.

4. Provide a back sheet and a flap with a folded surface on both sides of the front sheet with the addressing surface via folding lines, and glue the front sheet and the back sheet directly. An envelope characterized in that the back sheet has a width gradually narrowed from the fold line.

5. A back sheet and a flap, each having a folded surface on both sides of the front sheet having an addressing surface via a folding line. The front sheet and the back sheet are formed by directly gluing the front sheet and the back sheet, and the back sheet has a width gradually narrowed from a position spaced apart from the folding line by a predetermined distance. An envelope characterized by the following features.