JP2002114228A - Envelope, seal and envelope body used therefor and method of enclosing contents - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an envelop having a simple and reusable structure, a seal and an envelope body used therefor, and a reasonable method of enclosing contents. SOLUTION: The envelope includes an envelope body 2 and a seal 10, wherein the envelope body 2 has an opened opening 8 on one of its sides. The seal 10 has an adhesive material which can be glued to/released from the envelope body 2 and is glued to a surface and a rear face of the body 2 across the opening 8, thereby closing the opening 8. The seal 10 has a mailing class information section 11a and a receiver's address information section 11b. A surface upper end 4a and a rear upper end 5a on the opening 8 of the envelope body 2 are made to be different in height, whereby the opening 8 can be easily opened when putting in contents 20. If the envelope body 2 is made of a transparent or semitransparent resin sheet, an advertisement section 14 can be printed from an internal surface of the envelope body.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reusable envelope and a sealing piece, a sealing piece and an envelope body used for the envelope, and a method for charging contents.

[0002]

2. Description of the Related Art Recycling of packaging materials such as envelopes uses a reusable adhesive for the flap portion or uses a separate sealing portion that covers the opening of the envelope. Various configurations have been proposed. For example, Japanese Patent Application Laid-Open No. 7-291 discloses a method using a separate sealing portion.
The invention described in Japanese Patent Publication No. 308 is known.

According to the invention, the opening and closing piece cut and formed in a U-shape is inserted into the opening of the packaging body, and the upper part of the packaging body is sandwiched between the opening and closing piece and the frame piece. This prevents the seal from being released. As a result, the opening of the packaging body is closed, and the packaging body can be reused.

However, the technology described in the publication does not mention how to provide a sending type information section such as a postage stamp or post-payment mail or a sending destination information section such as a destination address name. In particular, if the destination information is written directly on the package body, the package body cannot be reused for sending.

[0005]

SUMMARY OF THE INVENTION In view of the above-mentioned conventional situation, an object of the present invention is to provide an envelope which can be reused with a simple structure, and a sealing piece and an envelope main body used for the same. An object of the present invention is to provide a method for enclosing an object.

[0006]

In order to achieve the above object, an envelope according to the present invention is characterized by comprising an envelope body and a sealing piece, the envelope body having an open portion on one side thereof, The sealing piece has an adhesive material that can be attached to and detached from the envelope main body, and covers the opening by being attached to the front and back of the envelope main body so as to close the opening, and the upper and lower ends of the opening of the envelope main body And the height of the upper back is different.

[0007] According to this configuration, the envelope main body has a simple shape having an opening, and thus is hardly deteriorated. Moreover, the sealing piece can be detached from the envelope main body by the adhesive material, and after the detachment, the envelope main body can be reused without damaging the envelope main body. In addition, since only a sealing piece provided with an adhesive material is attached to the envelope body, the overall configuration is extremely simple.

[0008] In automatically loading the contents, for example, the upper end of the back and the lower end of the envelope body are engaged with a nail, and the front side is sucked up by suction means and lifted upward, so that the space between the upper end of the back and the upper end of the front is raised. The opening can be opened. At this time, there is no inconvenience that the two upper ends are hard to be separated from each other due to the step between the front upper end and the rear upper end. Also,
There is no inconvenience that the flap closing the opening as in the case of the conventional envelope becomes an obstacle before the contents are charged. Further, even when the contents are manually supplied, the opening can be easily opened by putting a finger on the step between the upper end of the front surface and the upper end of the rear surface.

The sealing piece comprises a first portion and a second portion separated by a bent portion facing the opening. And the width of the first portion in the direction orthogonal to the bent portion,
It is preferable that the first portion is formed to be wider than the width of the other side portion, and the first portion is positioned at a higher upper end side of the upper ends. According to such a configuration, workability is excellent in terms of charging the contents and attaching the sealing pieces as described later. Further, waste of the sealing piece can be omitted.

It is preferable that at least the destination information section is provided in the first portion. According to this configuration, by removing the sealing piece, the destination information section can also be removed, and the reuse of the envelope is promoted.

[0011] It is preferable that an advertisement section is provided on the envelope body.
In addition, when the advertisement section is printed on the envelope body and the transparent or translucent resin sheet is positioned on the outer surface side of the advertisement section, the deterioration of the advertisement section due to abrasion or the like can be prevented. For example, when the envelope main body is made of a transparent or translucent resin sheet, the advertising section may be printed from the inner surface of the envelope main body.

On the other hand, the characteristic feature of the sealing piece used for the envelope is that it has an adhesive material that can be attached to and detached from the envelope body and is attached to the front and back of the envelope body across the opening. And the transmission type information section is printed. According to the configuration, by attaching the sealing piece, both the sealing of the envelope and the attachment of the stamp or the like can be performed simultaneously.

A characteristic configuration of the envelope main body for use in the above-mentioned envelope is that an opening is opened on one side thereof, and the height of the front upper end and the rear upper end in this opening is made different. .

On the other hand, the feature of the enclosing method for enclosing the contents in the envelope is that the higher end side of the both upper ends is located on the lower side and the envelope main body is supplied to the envelope supply section. is there. According to this feature, the "higher upper end" is located on the lower side, so that the locking claw is locked to this "higher upper end" or the contents are inserted using the "higher upper end" as a guide Can be inserted into the envelope. In addition, the envelope body is conveyed after the contents are charged, and the "lower upper end" is located on the upper side, so that the protruding portion of the expanded envelope body can be reduced, and the envelope body is enclosed during transportation. It is also possible to prevent accidental biting due to contact with the device.

At the time of enclosing, at least the upper portion of the envelope body is pulled up by the suction means, and at least the lower insertion piece is inserted through the opening, and the contents are inserted along the lower insertion piece. At this time, the lower portion of the envelope body may be suction-fixed downward by suction means, or the locking claw may be locked to the above “higher upper end” and pulled downward.

The sealing piece includes a first portion and a second portion separated through a bent portion facing the opening. Then, a sealing piece may be attached from the lower side of the envelope main body, and the width of the lower portion of the first portion in the direction orthogonal to the bent portion may be formed wider than the width of the other side portion. According to the characteristic method, the wide first portion is first attached to the envelope body, and then the remaining short second portion is attached, whereby the sealing is completed, so that the sealing piece can be attached more easily and smoothly. Becomes

[0017] Then, it is preferable that at least the information of the destination information section is printed on the first portion from the upper surface of the envelope after the envelope is turned upside down after the sealing piece is attached. The apparatus configured to carry out such a method can also be used as a device for enclosing the content in a normal envelope with a flap and printing.

[0018]

As described above, according to the above features of the envelope according to the present invention, both the envelope body and the sealing piece are extremely simple and have a simple structure as a whole. Became possible.

Further, according to the characteristics of the above-mentioned sealed piece, the destination information section can be attached to the envelope at the same time as the sealing, so that the efficiency of the shipping work and the reuse of the envelope can be promoted.

Other objects, configurations and effects of the present invention will become apparent from the following description of embodiments.

[0021]

Next, embodiments of the present invention will be described in more detail with reference to the drawings. Figures 1-6
Shows a first embodiment of the present invention. The envelope 1 includes an envelope body 2 having an opening 8 at an upper portion, and a sealing piece 10 for sealing the opening 8. A content 20 such as a letter is stored inside the envelope body 2. The envelope body 2 is formed of a sheet material that can withstand multiple uses, such as polyethylene, polypropylene, nonwoven fabric, water-resistant paper, aluminum foil, or a laminate of these. At least the outer surface side of the envelope body 2 can be repeatedly attached and detached to the adhesive material a plurality of times, and the envelope body 2 itself is configured to be repeatedly usable.

From the viewpoint of recycling, it is desirable to use a biodegradable plastic film sheet using polylactic acid or the like produced from plants as the material of the envelope body 2. Further, as the sealing piece 10, paper or a film subjected to surface processing is used, and an adhesive material for sticking to the outer surface of the envelope body 2 is provided on the entire inner surface.

The envelope body 2 is formed by bending a sheet made of the above-mentioned material at the bottom portion 6 and cutting the front portion 4 and the back portion 5 at the lateral portions 7 thereof by heat sealing or the like and simultaneously joining them. Front part 4
The material sheet is bent at the bottom portion 6 such that the front upper end 4a, which is the upper end of the material, is higher than the upper back end 5a, which is the upper end of the back portion 5, that is, at a position separated from the bottom portion 6.

On the front part 4 and the back part 5 of the envelope body 2, a first advertisement part 14 and a second advertisement part 15 by printing or the like are provided, respectively. The first advertising portion 14 and the second advertising portion 15 may be printed directly on the outer surface 2x of the envelope main body 2, but when the material of the envelope main body 2 is transparent or translucent,
By printing on the inner side surface 2y of the envelope main body 2, wear during repeated use can be prevented. Alternatively, the envelope body 2 may be made by printing a transparent film and using a composite film obtained by laminating another film or paper on the printed surface. In this case, the outer surface 2x and the inner surface 2y
The printed surface does not face both of them, and the abrasion resistance is further improved.

The sealing piece 10 has a band shape, and is bent at the bent portion 10z as shown in FIG. 4 so as to straddle the upper portion of the envelope body 2 and close the opening 8 so as to cover the front portion 4 and the back portion 5. Each is affixed. At this time, the width of the sealing piece 10 on the side facing the front part 4 orthogonal to the bent part 10z, that is, the front lower end 10
Front side portion (first portion) 1 which is the distance between x and the bent portion 10z
The width L1 of the sealing piece 10 is reduced by making the width L1 of the sealing piece 10 larger than the width L2 of the back side (second portion) 10b, which is the distance between the back lower end 10y and the bent portion 10z.
0 can be described in the transmission information section 11.

The sending information section 11 includes a stamp attaching section, a post-payment mail, a booklet package, a book package, a delivery type information section 11a for describing the type of parcel delivery service, and the like, and destination information for describing a destination address name and the like. A portion 11b. The sending information section 11 is used to attach a separate body to the sealing piece 10,
You may make it print directly on it. The sender information part is provided on the back side of the sealing piece 10 facing the front part 4 like the first sender information part 12, and faces the back part 5 of the sealing piece 10 like the second sender information part 13. May be provided on the side of the front surface. These sender information sections are also attached by separate attachment or direct printing. In addition, it is desirable to directly print on the sealing piece 10 for the information part of the sending information part 11, the first sender information part 12, and the second sender information part 13 from the viewpoint of cost reduction.

Next, referring to FIGS. 7 to 10, contents 20 such as a flyer are inserted into the envelope body 2 using the enclosing device 100.
A method of forming the envelope 1 by enclosing the envelope 1 will be described.
The enclosing device 100 includes a content supply mechanism 110, an enclosing mechanism 120, a tape sticking mechanism 130, and a reversing mechanism 14
0, a printing device 150, and a conveyor sticker 160.

The above-described contents supply mechanism 110 sequentially extracts a plurality of types of contents 20 such as flyers from a mountain for each type and stacks them along the transport direction C. The enclosing mechanism 120 encloses the stacked contents 20 in the envelope body 2 to be conveyed.

As shown in FIGS. 7 and 8, in the enclosing mechanism 120, the envelope main body 2 is transported in the transport direction C while being supported by the rail 121. At this time, the envelope body 2 is supplied to the supply unit P with the front part 4 side facing downward. Above and below the supply section P, a lower suction section 123 and an upper suction section 124 are provided as suction means for sucking the envelope body 2 by suction cups 123a and 124a, respectively. Then, the lower suction part 123 is sucked to the front part 4 and the upper suction board 124 is sucked to the back part 5 to open the opening 8 between the front upper end 4a and the back upper end 5a, and the inserter 122 is inserted. Instead of using the lower suction part 123, a locking claw indicated by reference numeral 125 may be locked to the upper end 4a and the bottom part 6 to hold the front part 4 of the envelope body. Further, both the lower suction part 123 and the locking claw 125 may be used.

The inserter 122 includes a pair of upper and lower inserts 1.
The lower insertion piece 122a is inserted into the opening 8 and is pressed against the inner surface of the upper insertion piece 122a, and the upper insertion piece 122b supports the back upper end 5a. Then, the content 20 is inserted by passing through between the plate members 122a and 122b, and the content 20 is sealed in the front portion 4. After that, the enclosing device 100 pulls out the inserter 122 from the opening 8 and the lower suction part 123 and the upper suction disk 12
4 is removed from the envelope body 2, and the envelope body 2 is further transported in the transport direction C.

The tape sticking mechanism 130 sequentially supplies the roll-shaped tape 30 and sticks it on the surface of the envelope body 2. The tape 30 is supported on a shaft 131, and a first roller 132,
The tape 30 is supplied to the application roller 134 via the second roller 133 such that the adhesive surface faces outward. And
Before or after sticking to the envelope main body 2, the tape 30 is cut by a cutter (not shown) to form a rectangular sealing piece 10. That is, the front side portion (first portion) of the sealing piece 10
10a is first attached to the front part 4 side of the envelope body 2.
Then, the back side (second portion) 10b of the sealing piece 10 is erected by a jig and a roll (not shown), and is attached to the back 5 of the envelope body 2.

The envelope 1 formed by attaching the sealing piece 10 to the envelope main body 2 is reversed by the reversing mechanism 140 from the receiving part S1 to the discharging part S2. This reversing mechanism 140
9 and 10, a support shaft 141 oriented along the transport direction C and a drum 14 supported by the support shaft 141.
2, a pair of chain conveyors 144 and 144 that convey the envelope 1 and wings 143 that are oriented at equal intervals at eight locations around the drum 142.

The envelope 1 is transported along the transport direction C with the front portion 4 facing downward, locked by the claws 145 of the chain conveyor 144. The envelope 1 is inserted between the pair of plate-like members constituting the wing 143 at the receiving portion S1. Claw 145 is feather 1
The envelope 1 is inserted into the envelope 43, and then falls backward as it moves along the transport direction C, and separates from the envelope 1. The reversing mechanism 140 intermittently rotates in a state where the envelope 1 is sandwiched between the respective wings 143, and moves each envelope 1 to the discharge section S2. Similarly, the chain conveyor 14 is provided on the discharge section S2 side.
4, where the claw 145 locks the envelope 1 to further convey in the conveying direction C.

As shown in FIG. 7, the envelope 1 is further conveyed by the conveyor of the enclosing device 100, and the printing device 150 performs printing on the sealing piece 10. This printing is performed by a non-contact ink jet printer or the like, or by a contact type dot impact printer or the like. Printing is performed on the front side 10a side of the sealing piece 10, whereby the sending type information section 1
1a, the destination information section 11b, etc. are entered. The printed envelopes 1 are stacked by the conveyor sticker 160. By peeling off the sealing piece 10 from the envelope body 2,
The envelope body 2 can be used a plurality of times.

Next, another embodiment of the present invention will be described. In the following embodiments, the same members as those in the above embodiment are denoted by the same reference numerals.

First, in the second embodiment shown in FIG. 11, unlike the first embodiment, the back upper end 5a which is the upper end of the back 5
Is higher than the top 4a of the table, in other words, the bottom 6
It is set to be located farther away from the camera. Then, the wide front side portion 10a of the sealing piece 10 is arranged on the front upper end 4a side of the lower envelope body.

In the third embodiment of the present invention shown in FIG.
The envelope body 2 is a large, vertically long book, for example, an A4 size book,
The contents 20 such as a booklet and a catalog are stored. Although not shown, sheets are overlapped and adhered to each other at the center of the back portion 5 side and the lower portion of the bottom portion 6 like a normal envelope, and the first advertising portion 14 and the like are displayed on the front surface.

In this embodiment, of the sending information section 11, the sending type information section 11a is printed directly on the envelope body 2, and the sending destination information section 11b is printed together with the first sender information section 12 on the sealing piece 1.
0 is printed. The sending type information section 11a is a portion in which character information such as "post-pay postal mail" and "booklet package" is described. The width of the sealing piece 10 is smaller than the width of the envelope body 2 and the contents 20 are visible from the outside at both ends without covering the sending type information section 11a, so that they can be handled as a booklet parcel and a third-class mail. Is allowed. A destination information section 11b is provided on the front side of the sealing piece 10, and the sealing piece 10
A first sender information section 12 is provided on the back side of the first sender.

In the fourth embodiment of the present invention shown in FIGS. 13 and 14, the entire back 5 is made of a transparent resin.
Also, on the front side of the contents 20, the sending type information section 11a is printed on the upper right as viewed from the back side, the destination information section 11b is printed on the upper center, and the first sender information section 12 is printed on the lower side. The print type information section 11a, the destination information section 11b, and the first sender information section 12 are printed out from the table section 4 via the table section 4. On the side of the table part 4, these transmission type information part 11a and destination information part 11
It suffices if the portion facing b and the first sender information section 12 is transparent. The contents 20 can be stored in the envelope main body 2 without bending, or may be the contents that can be stored in the envelope main body 2 by bending two or more times.

The envelope main body 2 is provided with a film or a paper,
And the horizontal pasting portion 6a folded back at the bottom portion 6 with the vertical attaching portion 5b on the back portion 5 side.
Attached below. The upper end 4a of the front part 4 is horizontal, but the upper end 5a of the rear part is cut so as to approach the bottom part 6 toward the center, and the upper end 4a is connected to the upper end 4a so that the contents 20 can be easily inserted. A step is provided between the upper end 5a. The sealing piece 10 is formed such that the distance from the lower end 10y to the bent portion 10z is longer than the distance from the lower end 10x to the bent portion 10z.

In the fifth embodiment of the present invention shown in FIGS. 15 and 16, the sending type information section 11a is printed on the front section 4, and the tacking sticker on which the destination information section 11b and the first sender information section 12 are printed is used. It is pasted on the front part 4. The sending type information section 11a may be a stamp in the form of a seal.
In the envelope body 2, the film is folded back and
The point of b bonding is the same as in the previous embodiment.
The front upper end 4a and the rear upper end 5a are both flat and horizontal, but are provided with a step so that the front upper end 4a is closer to the bottom 6 side than the rear upper end 5a. In addition, front side lower end 1
Although the distance between 0x and the bent portion 10z is longer than the distance between the back lower end 10y and the bent portion 10z, the front lower end 10x
Are not overlapped with the sending type information section 11a.

In the sixth embodiment of the present invention shown in FIG.
The distance between the front lower end 10x and the bent portion 10z is the rear lower end 10x.
y is much longer than the distance between the bent portion 10z and the sealing piece 1
The transmission type information section 11a is provided on the front side of the “0”. The destination information section 11b is printed on a tack seal and attached to the front section 4. The back upper end 5a is horizontal and flat, but the front upper end 4a is inclined so as to approach the bottom 6 closer to the center,
A step is formed between the upper end 4a and the upper end 5a.

In the seventh embodiment of the present invention shown in FIG.
As in the previous embodiment, the distance between the front lower end 10x and the bent portion 10z is significantly longer than the distance between the rear lower end 10y and the bent portion 10z, and the destination information portion 11b along with the transmission type information portion 11a on the front side of the sealing piece 10. Is provided. The sending type information section 11a is a stamp and is directly printed on the sealing piece 10. That is, the sealing piece 10 itself is a postage stamp. The destination information section 11b is printed directly on the sealing piece 10 or printed on a tack seal and then attached to the sealing piece 10.
Both the top and bottom ends 4a and 5a are horizontal and flat, but the top and bottom ends 4a are close to the bottom 6, and a step is formed between the top and bottom ends 4a and 5a.

In the eighth embodiment of the present invention shown in FIGS. 19 and 20, the envelope main body 2 is a horizontally long, fixed mail as in the first embodiment. The sealing piece 10 is configured similarly to the first embodiment. When viewed from the front part 4 side, the upper end 4a of the front is lower left, while the upper rear 5a is lower right. In addition, a step is provided between the front upper end 4a and the rear upper end 5a at the opening in the upper part of the envelope body 2.

In producing the envelope body 2, the long sheet-like film 50 is cut obliquely with respect to the longitudinal direction. By bending at the bottom 6 perpendicular to the edge 50a, the front upper end 4a and the rear upper end 5a can intersect as described above.

Finally, the possibility of still another embodiment of the present invention will be enumerated. Of course, it is possible to carry out the above embodiments and the following other embodiments in combination with each other.

In each of the above embodiments, printing of advertisements and the like can be variously modified. For example, the front part 4 of the envelope body 2
May be transparent, and the back 5 may be printed with an advertisement or the like. In this case, the printing is preferably performed inside the film on the back portion 5 and the printed portion may be protected by sandwiching the film on both sides of the printing.

Although the opening 8 is provided on the long side of the envelope body 2 in the standard mail of the first embodiment, the opening 8 may be provided on the short side of the envelope body 2 for the standard mail. However, the aspect of the first embodiment is superior in handling when the contents 20 are charged.

In the above embodiments, the destination information section 11b and the first sender information section 12 are printed. However, the destination information section 11b and the first sender information section 12
May be a blank space to be filled in by handwriting or printing.

It should be noted that the reference numerals entered in the claims are merely for convenience of comparison with the drawings, and the present invention is not limited to the configuration of the attached drawings by this entry. .

[Brief description of the drawings]

FIG. 1 is a front view showing a first embodiment of an envelope according to the present invention.

FIG. 2 is a rear view of FIG.

FIG. 3 is an exploded perspective view of the envelope shown in FIG.

FIG. 4 is a sectional view taken along line AA of FIG. 1;

FIG. 5 is a sectional view taken along line BB of FIG. 1;

FIG. 6 is a cross-sectional view of the envelope according to the present invention, in which an intermediate portion showing a welded state in a lateral portion is omitted.

FIG. 7 is a manufacturing apparatus for manufacturing an envelope according to the present invention.

FIG. 8 is a sectional view of a main part of the sealing mechanism.

FIG. 9 is a cross-sectional view of the reversing mechanism.

FIG. 10 is a plan view of FIG. 9;

FIG. 11 is a sectional view showing a second embodiment of the envelope according to the present invention.

FIG. 12 is a front view showing a third embodiment of the envelope according to the present invention.

FIG. 13 is a rear view showing the fourth embodiment of the envelope according to the present invention.

14 is an exploded perspective view of the envelope shown in FIG.

FIG. 15 is a front view of an envelope showing a fifth embodiment of the envelope according to the present invention.

FIG. 16 is an exploded perspective view of FIG.

FIG. 17 is a front view showing a sixth embodiment of the envelope according to the present invention.

FIG. 18 is a front view showing a seventh embodiment of the envelope according to the present invention.

FIG. 19 is a front view showing an eighth embodiment of the envelope according to the present invention.

FIG. 20 is a front view showing the relationship between the envelope main body and the film shown in FIG. 19;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Envelope 2 Envelope main body 2x Outer side 2y Inner side 4 Top 4a Top 5 Back 5a Back 5b Vertical application part 6 Bottom 6a Horizontal application part 7 Horizontal part 7b Horizontal release part 8 Opening 10 Seal piece 10a Front side ( 1st part) 10b Back side part (second part) 10x Front lower end 10y Back lower end 10z Bent part 11 Send information part 11a Send type information part (post-payment mail, booklet parcel, etc.) 11b Destination information part (name of destination address, etc.) 12 First Sender Information Part 13 Second Sender Information Part 14 First Advertising Part 15 Second Advertising Part 20 Contents 30 Tape 50 Film 50a Edge 100 Enclosure Device 101 Opening Member 101a Tip 102 Guide Member 102a Horizontal Slit 102b Vertical Slit 110 Contents supply mechanism 120 Enclosure mechanism 121 Rail 122 Inserter 122a Lower insertion piece 12 b Upper insertion piece 123 Lower suction part 123a Suction cup 124 Upper suction part 124a Suction cup 125 Locking claw 130 Tape sticking mechanism 131 Axis 132 First roller 133 Second roller 134 Pasting roller 140 Reversing mechanism 141 Support shaft 142 Drum 143 Blade 144 Chain conveyor 145 Claw 150 Printing device 160 Conveyor sticker C Transport direction L1 Front side width L2 Back side width P Supply part S1 Receiving part S2 Discharge part X Welding range

Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat II (Reference) B65D 27/28 B65D 27/28

Claims (12)

[Claims] An envelope body (2) and a sealing piece (10) are provided, the envelope body (2) has an opening (8) opened on one side thereof, and the sealing piece (10) is It has an adhesive material that can be attached to and detached from the envelope body (2), and covers the opening (8) to cover the opening (8) by being attached to the front and back of the envelope body (2). The upper end (4) of the opening (8) of the envelope body (2).
An envelope characterized in that the height of a) and the upper rear end (5a) are made different. 2. The sealing piece (10) is provided in the opening (8).
A first portion (10a) and a second portion (10b) separated by a bent portion (10z) opposed to the first portion (10z), and a width (L1) of the first portion (10a) in a direction orthogonal to the bent portion (10z). ) Is formed wider than the width (L2) of the other side portion (10b), and the first portion (10a) is located on a higher upper end (4a) side of the upper ends (4a, 5a). 2. The envelope according to 1. 3. The envelope according to claim 2, wherein at least the destination information section (11b) is provided in the first portion (10a). 4. An advertisement unit (14, 1) comprising:
The envelope according to any one of claims 1 to 3, further comprising (5). 5. The advertisement section (14, 15) is printed on the envelope body (2), and a transparent or translucent resin sheet is located on an outer surface side of the advertisement section. 4. The envelope according to 4. 6. A transmission type information section (11a) on a side of the sealing piece (10) provided with the destination information section (11b).
The envelope according to any one of claims 1 to 5, further comprising: 7. An envelope used for the envelope according to claim 1, wherein said envelope has an adhesive material which can be attached to and detached from said envelope body (2), and said opening (8) is closed. A sealing piece for covering the opening (8) by being attached to the front and back of the envelope body (2) while straddling, and having the sending type information section (11a) printed thereon. 8. An envelope body for use in the envelope according to claim 1, wherein the envelope body has an opening (8) opened on one side thereof. An envelope body, wherein the height of an upper end (4a) and the height of a rear upper end (5a) are different. 9. The enclosing method for enclosing contents in an envelope according to claim 1, wherein a higher upper end (4a) side (4) of the upper ends (4a, 5a) is positioned on a lower side. And supplying the envelope main body (2) to an envelope supply section (P). 10. At least the upper part (5) of the envelope body (2) is pulled up by a suction means (124),
The encapsulation method according to claim 9, characterized in that at least the lower insertion piece (122a) is inserted through the opening (8), and the content (20) is inserted along the lower insertion piece (122a). 11. The envelope body comprises a first portion (10a) and a second portion (10b) separated through a bent portion (10z) facing the opening (8). (2) A sealing piece (10) is attached from the lower side, and the width (L1) of the first portion (10a) located on the lower side in the direction orthogonal to the bent portion (10z) is changed to the other side portion (10b). 10. The encapsulation method according to claim 9, wherein the width is larger than the width (L2). 12. The method according to claim 10, wherein at least information of the destination information section is printed on the first portion from the upper surface of the envelope after the envelope is turned upside down. The described encapsulation method.