JP2002029544A - Envelope - Google Patents

Abstract

PROBLEM TO BE SOLVED: To disclose a structure of an envelope on which an address can be reliably printed when applied to widely prevailing printers. SOLUTION: The envelope comprises a sheet which is two-folded to form a surface sheet 10 having an address face and a rear sheet 11 having a folding face while an enclosure region S having in opening 17 is provided between the surface sheet 10 and the rear sheet 11. Pacing surfaces of the sheets 10 and 11 are directly stuck to each other on a side f2 except the opening 17 and a crease 18, while the sheets 10 and 11 are stuck to approximately overlap each other. Thus an approximately entire region of the enclosure region S is constituted of the same number of sheets.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an envelope, and more particularly, to an envelope which can be suitably printed by directly passing through a printer.

[0002]

Conventionally, standard or non-standard envelopes are formed by appropriately bending a single sheet, so that the basic structure is inevitably common, so that the inner and Various things, such as horizontal sticking, camas sticking, and diamond sticking, are known. For example, the one shown in FIG. 1 belongs to a type called "kamasa sticking". One sheet of paper is folded and glued to form a front sheet 1 having an addressing surface, a back sheet 2 having a folded surface, and a flap 3. ing. This envelope is completed by bonding the front sheet 1 and the back sheet 2 via a margin 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 been remarkably spread not only in offices but also in homes, and accordingly, printers have been widely spread. With the spread of printers, address writing is often performed by printer printing. Further, in addition to address writing, there is also a demand for printing a logo, decoration, or the like of a transmission source irrespective of the portion of the envelope.

However, in the conventional envelope as shown in FIG. 1, for example, the portion corresponding to the margin A is three sheets of paper, and the center part is two sheets, resulting in a difference in thickness. . As a result, when the envelope is passed through the rollers, a gap is formed between the rollers in the central portion, which is the printing portion, and it may not be possible to perform clear printing. In addition, when passing between the feed rollers, wrinkles may occur due to differences in waist caused by differences in thickness, ink fixing degree may change due to differences in thickness, and printing may be disturbed at steps. Furthermore, since the front sheet and the back sheet overlap via the left and right glue margins, the degree of adhesion between the sheets is poor, and the sheet sent to the drive roller and the sheet sent by the driven roller slip to reduce the feed amount. There is a difference
There is also a problem that smooth feeding and accurate printing cannot be performed. The above-mentioned various types of known envelopes always have a margin for glue and a portion having a partially different thickness, so that a similar problem occurs. Such a problem is particularly remarkable in a laser printer.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned conventional problems, and discloses a structure of an envelope which can perform reliable printing of an address and the like even when applied to a widely used printer. Things.

[0006]

According to the present invention, in order to achieve the above-mentioned object, a sheet is folded in half to form a front sheet having an addressing surface and a back sheet having a folded surface. And an enclosing area having an opening between the back sheet and the back sheet. The opposing surfaces of the front sheet and the back sheet are directly adhered to each other at a side portion excluding the opening and the folding line. The sheets are substantially overlapped with each other, and substantially the entire area of the sealed area is constituted by the same number of sheets.

[0007] In such a case, the front sheet and the back sheet are directly bonded to each other without interposing a margin for gluing so that the thickness becomes uniform. Therefore, it is possible to effectively prevent a problem at the time of printing, that is, a wrinkle, a change in ink fixing degree, and a disorder in printing at a step portion. In addition, since the degree of adhesion between the front sheet and the back sheet is much higher than that of the conventional sheet, even when the sheet passes between the printer rollers, it is unlikely to be displaced, and smooth feeding can be performed. Furthermore, since there is no glue allowance, the developed sheet becomes rectangular or nearly rectangular, and the yield when cutting the developed sheet from the base paper is improved. In addition, since the step of bending the adhesive margin can be omitted, the production can be simplified. Also, opening from the side is also possible with the capacity to peel the front and back. Of course, there is no difference in the thickness when writing the address by hand, and it goes without saying that this is very suitable.

On the other hand, with the above-described structure, the opening is difficult to expand because the front sheet and the back sheet substantially overlap, and when expanded, a load is directly applied to the bonded portion, and the portion is peeled or broken. Or there is a possibility. 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.

In order to make the thickness uniform even when the opening is closed by the flap, it is conceivable that the flap for closing the opening of the enclosing area is formed to substantially overlap the back sheet.

On the other hand, if the front sheet and the back sheet have completely the same shape, depending on the bending accuracy, a shift occurs in the overlap during bag making, and the back sheet pops out to one side. When this envelope is applied to a printer, the protruding portion becomes an obstacle, causing a paper jam inside the printer or a roller wrinkle, so that reliable printing cannot be performed. In order to prevent this problem, a back sheet and a flap are formed on both sides of the front sheet via fold lines, respectively, and the front sheet and the back sheet are directly glued, and the back sheet is connected to the fold line or the flap. It is desirable to form an undercut having a gradually narrowing width from a position spaced apart from the folding line by a predetermined distance.

As described above, if the width of the back sheet is gradually reduced from the fold line, even if there is a slight error when the envelope is folded in half from the fold line at the time of manufacturing the envelope, the back sheet protrudes outward from the front sheet. This is because it can be avoided.

Here, the term "gradually narrowing" is a concept that includes a stepwise narrowing.

[0013]

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. In the following embodiments, corresponding parts are denoted by the same reference numerals. <First Embodiment> As shown in a developed view (FIG. 2) and a completed view (FIG. 3), an unfolded sheet S
T is folded in two to form a front sheet 10 and a back sheet 11 each having an addressing surface, and a rectangular shape in which an enclosed area S is provided between the front sheet 10 and the back sheet 11. The folding line 13 for folding in two is configured to correspond to the long side portion f1 of the envelope F, and the folding line 13
By joining the front sheet 10 and the back sheet 11 at a side edge portion f2 which is a short side portion adjacent to the above, the sealing region S is opened on the side opposite to the folding line 13.

On the other hand, a flap 12 extends integrally from a long side f4 of the front sheet 10 facing the fold line 13 via a second fold line 14, and this flap 12 is connected to the second fold line 14. The opening 17 of the sealing area S can be sealed by folding back at the folding line 14.

In this embodiment, the front sheet 1
0 and the back sheet 11 are directly bonded to the front sheet 10 and the back sheet 11 by setting an adhesive portion 20 on the facing surfaces 10b and 11b of the short side portion f2 of the back sheet 11 and applying an adhesive to the adhesive portion 20, for example. ing. The enclosed area S
So that the bonding portion 20 can be completely enclosed.
However, depending on the application, a part that is not bonded may be provided on a part of the short side part f2.

In this 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 configured to overlap each other. I have.

Furthermore, in conventional envelopes, since the folds are not tightly formed in consideration of the texture and the like, the fold side becomes slightly thicker. In the embodiment, the thickness is made uniform by folding the folding line 13 more tightly than before, so that even if 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 enclosing area S is constituted by the same number of sheets, the thicknesses become equal, and a defect at the time of printing resulting from the presence of a portion having a different thickness as in the related art, that is, wrinkles or ink fixing degree is reduced. It is possible to effectively prevent the printing from being partially changed or from being disturbed at the step. 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, even when the sheet passes between the printer rollers, it is unlikely that the sheet is displaced, so that smooth feeding can be performed. Further, the envelopes F having the same thickness can be stacked no matter how many sheets are stacked, so that continuous printing can be performed without any trouble by stacking the envelopes on the feeder for supply, and also suitable for storage and packing. Of course, there is no difference in the thickness when writing the address by hand, and it goes without saying that this is very suitable.

From the viewpoint of manufacturing, since there is no glue margin, the spread sheet ST has a rectangular shape or a shape close to a rectangle, and the effect of cutting out the spread sheet ST from the base paper can be significantly improved. In addition, since the step of bending the adhesive margin can be omitted, there is also an effect that the manufacturing can be simplified. <Second Embodiment> FIG. 4 shows an expanded form of an envelope F of the present embodiment, in which 10 is a front sheet having an address surface, 11 is a back sheet having a folded surface, and 12 is a flap. Reference numerals 13 and 14 denote folding lines which are provided simultaneously when the envelopes F are cut out and formed one by one. here,
Although the front sheet 10 is an accurate rectangle, the back sheet 11 is formed in a tapered undercut 15 that is gradually narrowed from the fold line 13 toward the opening 17. FIG. 5 shows the structure of FIG.
Attach both sides at the bonding portion 20 with an adhesive to form an envelope F
It shows the place where it was completed.

A particularly important technique in the structure of the present invention is that the back sheet 11 is not formed in a rectangular shape which coincides with the front sheet 10 but in a tapered shape gradually narrowed. When they are completely matched as in the first embodiment, as shown in FIG. 12, the back sheet 11 protrudes from the front sheet 10 depending on the folding error, and an unexpected displacement occurs in the shape of the entire envelope F. The appearance also deteriorates, and a problem may occur in printing or the like. However, with such a configuration, even if a slight shift occurs when the mechanical folding is performed at the folding line 13, the back sheet 11 is
Never jump out of 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. Even in the case where sheets are stacked, there is no protruding portion, so that the problem of bending and bending can be solved. <Third Embodiment> FIG. 6 shows a third embodiment.
The start of the undercut 15 does not start from the folding line 13 but from the middle of the folding line 13 and the opening 17. Envelopes are formed one by one by stamping.
Since the machine is folded at the fold line 13, no excessive error occurs in the folding method. Therefore, in such a case, it is considered that the jump-out can be prevented without necessarily starting the undercut 15 from the folding line 13.

In order to obtain the same operation and effect as in 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 increased toward the front end. As shown in FIG. 14,
The width of the back sheet 11 may be set smaller than the width of the front sheet 10. <Fourth Embodiment> In an envelope F of this embodiment, notches K are provided on both sides of a long side portion f3 forming the opening 17 in the back sheet 11, as shown in FIGS. 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 bonding portion 20. In this way, not only can the opening 17 be easily expanded, but also if the opening 17 is expanded to insert or remove the enclosure OB, the notch K
Is applied to the portion, and the peeling force does not directly act on the bonding portion 20. Therefore, even if the opening 17 is excessively widened, a break is generated from the notch K, and if the break is slight, the flap 12 can be covered by bonding the back flap 12 to the back sheet 11, so that the sealed area S cannot be sealed. Can be avoided.

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 make the thickness uniform even when the opening 17 is closed by the flap 12, FIG.
As shown in FIG. 0, it is conceivable that the flap 12 for closing the opening 17 in the enclosing area has a shape substantially overlapping with the front sheet 10 or the back sheet 11.

Further, in each of the above embodiments, the description has been made on the assumption that the folding line 13 corresponds to the long side of the envelope f1 corresponding to the long side f1, but as shown in FIG. You may make it correspond. However, when the envelope F is automatically manufactured using a folding machine, the length of the unfolded sheet ST is lengthened in this manner. It may be smaller than the example.

In addition, it goes without saying that any method may be used for bonding the front sheet and the back sheet. Further, it goes without saying that the present invention is not limited to a completed envelope, but also to a double-sided state in which an adhesive surface on both sides is processed by an end user.

[0025]

As described in detail above, according to the present invention,
Since the back sheet edges of the front sheet and the back sheet are directly bonded to each other so that the thickness becomes uniform, there is a problem at the time of printing caused by the presence of a portion having a different thickness as in the conventional case, that is, wrinkles may occur. It is possible to effectively prevent the ink fixing degree from being changed or the printing from being disturbed at the step portion. Further, since the degree of adhesion between the front sheet and the back sheet is much higher than that of the conventional sheet, there is no deviation when passing between the printer rollers, and smooth feeding can be performed. Furthermore, since there is no glue allowance, the yield when cutting the spread sheet from the base paper is improved,
Since the step of bending the glue margin can be omitted, the production can be simplified. Also, opening from the side is also possible with the capacity to peel the front and back. Of course, there is no difference in the thickness when writing the address by hand, and it goes without saying that this is very suitable.

Further, if the back sheet has a width gradually narrowed from the folding line or from a place apart from the folding line by a predetermined distance, the front sheet and the back sheet are folded when the folding is performed along the folding line. Even if an error occurs or a slight error occurs during die cutting, the back sheet does not jump out sideways because it is undercut, even if this is passed to the printer for address writing Paper jams and distortion can be reliably avoided.

[Brief description of the drawings]

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

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

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

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

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

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

FIG. 9 is an exemplary 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 an envelope bending error occurs in 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.

[Explanation of symbols]

 F: Envelope 10: Front sheet 11: Back sheet 12: Flap 13: Fold line 14: Second fold line 17: Opening S: Enclosed area f2 ..Sides excluding openings and fold lines f3 ... sides forming openings in back sheet f4 ... sides forming openings in front sheet K ... notches

Claims (5)

[Claims] A back sheet is provided integrally with a front sheet having an addressing surface via a fold line, and an enclosed area having an opening is formed between the front sheet and the back sheet bent along the fold line. By directly bonding the sides of the front sheet and the back sheet except for the opening and the fold line portion, and making the front sheet and the back sheet substantially overlap each other, substantially the entire area of the enclosed area has the same number of sheets. An envelope comprising a sheet. 2. The envelope according to claim 1, wherein a notch is provided on both sides or one side of the side forming the opening of the back sheet. 3. A flap for closing an opening of an enclosing area is integrally provided from a side portion forming the opening of the front sheet via a second folding line, wherein the flap is placed on the back side. 3. The envelope according to claim 1, wherein the envelope has a shape substantially overlapping the sheet. 4. A front sheet having an addressing surface, a back sheet and a flap having a folded surface are provided on both sides of each of the folding lines via folding lines, and the front sheet and the back sheet are formed by directly gluing, The envelope, wherein the back sheet has a width gradually narrowed from the folding line. 5. A front sheet having an addressing surface, a back sheet and a flap having a folded surface provided on both sides of each of the folding lines via a folding line, and the front sheet and the back sheet are formed by directly gluing, The envelope as claimed in claim 1, wherein the back sheet has a width gradually narrowed from a position apart from the folding line by a predetermined distance.