JPH0640455A - Envelope with two-surface opening - Google Patents

Abstract

PURPOSE:To store an important document, etc., without putting a folding line by a method wherein an envelope body the two edges of which are opened is formed of a non-flexible sheet, and sealing pieces on which a double-face adhesive tape is applied are provided along the opening end edges on the surface side. CONSTITUTION:The envelope body 1 with non-flexibility which is strong to the outside pressure is formed into a doubly folded envelope body with bottom with a surface part and rear surface (b), of which the bottom part is joined, and sealing pieces 2, 3 are provided along the end edge lines of the surface part. Then, a double-face tape 5 is attached on respective sealing pieces 2, 3. When a document, etc., is mailed, after putting the document, etc., in the envelope body 1 using an opening 4 which is opened at the end edges (c), (d) of the rear surface part (b), the release paper of the double-face tape 5 which is provided on respective sealing pieces 2, 3 is removed. Then, respective sealing pieces 2, 3 are folded along the end edges (c), (d) of the rear surface part (b), and bonded to the rear surface part (b) to seal the envelope body 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a double-sided opening envelope in which a document in an envelope is not folded.

[0002]

2. Description of the Related Art Conventional envelopes use envelopes that are as light as possible due to the postage.

Further, in the case of sending a thick book such as a book or a collection of cases, a cardboard is doubled and short fibers are put in the doubled paper to inflate it to prevent external impact. Is also proposed.

Although the envelopes of No. et al. Are practical and generally used, the former case has a drawback that the envelope itself is bent to damage the contents when sending a design drawing, a certificate or an X-ray photograph.

Further, in the latter case, since the capacity is wide and the weight is heavy, the shipping cost is high, and there are various guarantees that there is no guarantee that a crease will not be formed when the article is mailed.

[0006]

The problem to be solved by the present invention is to provide two opening ports, which are strong against external pressure, so that the enclosed important documents can be smoothly taken in and out without creases. The point is that the mouth was tightly sealed with a sealing piece.

[0007]

SUMMARY OF THE INVENTION According to the present invention, an envelope body that is strong against external pressure and is inflexible is formed in two folds, and the bottom portion of the envelope body is fixed at the same time as folding to provide an opening portion, An opening is provided at two positions, one side surface and an upper side surface of the opening, and a sealing piece is projected along the edge of the front surface portion of the opening and outwardly from the edge line of the back surface portion. By sticking a double-sided tape on the inner surface in the longitudinal direction of the piece and sealing it on the back side, an envelope that does not damage important documents such as contracts, design drawings, radiographs, etc.

In addition, as in the case of the above-mentioned envelope, one side and an upper side of a normally used bottomed envelope are opened depending on the type of flexible document, and the envelope is sealed from the edge line of the front side to the back side of the envelope. A piece is projected and expanded to connect the opening across one side surface and an upper surface, and a double-sided tape is adhered along the longitudinal direction of the sealing piece to insert a document into the end of the envelope on the back side for sealing. By doing so, it is possible to prevent the edge of the document filled in the envelope from being accidentally cut.

[0009]

According to the present invention, it is possible to mail or carry the envelope as it is without forming a fold line in the required document through the opening on one side of the envelope, or against external pressure or twist. For example, if you open all the openings on the side of the envelope, such as important documents, design drawings, appraisals, contracts, X-rays, certificates, mark sheets, etc. It is to be sealed and used.

[0010]

EXAMPLES Examples will be described with reference to the drawings.

FIG. 1 is a front view of an embodiment of the present invention, in which an envelope body 1 which is strong against external pressure and inflexible.
In the case of folding in two so as to be divided into a front surface portion a and a rear surface portion b, the bottom portion is closely adhered to form a bottomed envelope body and an opening is provided.

FIG. 2 shows a bottomed envelope 1 viewed from the back (rear) part b, and the back surface part b of the envelope 1 viewed from the back, the end edge line (c), and the sealing pieces 2 and 3 from the front. (A) It is formed integrally with the envelope body 1 so as to project outward.

FIG. 3 is a left side view showing an opening 4 between the envelopes 1 of the front surface a and the rear surface b, and an important document is inserted into the opening 4.

In FIG. 4, a double-sided tape 5 is adhered to the sealing pieces 2 and 3, and the tape 5 is peeled off.

In FIG. 5, the sealing pieces 2 and 3 are attached to the back surface b of the envelope body 1 to be useful for mailing.

Further, since the front and back surfaces of the envelope body of the present invention are subjected to special processing, the strength is increased, and rainwater does not enter.

[0017]

As described above, according to the present invention, external pressure and an inflexible bottomed envelope are provided at two opening ports so that they can be used for post-folding prohibited mail or home delivery. When opening important documents, design drawings, appraisals, radiographs and other photographs, certificates, mark sheets and scoring sheets, the opening is wide so it is easy to insert and does not have to be folded as it is. The effect of being able to be mailed or delivered in the fixed state after being sealed from the point and fixed is of course peculiar to reuse. Particularly, since the front and back surfaces of the envelope body of the present invention are subjected to special processing, the strength is great.

[Brief description of drawings]

FIG. 1 is a front view of an envelope body.

FIG. 2 is a rear view of the envelope body.

FIG. 3 is a left side view of the envelope body.

FIG. 4 is an explanatory view showing a peeled state of a double-sided tape attached to a sealing piece of an envelope body.

FIG. 5 is an explanatory view showing a state in which a sealing piece is attached to the back surface of the envelope body.

[Explanation of symbols] 1 Envelope 2 Sealing piece 3 Sealing piece 4 Opening 5 Double-sided tape b Front side b Back side c Edge edge line d Edge edge line

Claims (2)

[Claims] 1. A front envelope and a rear face are formed by folding an envelope body that is strong against external pressure and is inflexible, and an opening is provided in the bottomed envelope body. Opening openings are formed at two locations, a side surface and an upper side surface, and a sealing piece integrally projects with the end edge of the envelope on the front surface outwardly from the edge line of the back envelope, and the longitudinal direction of each sealing piece. A double-sided opening envelope, characterized in that a double-sided tape is adhered to the inner surface of the sheet so that the end of the back envelope can be sealed. 2. An opening opening is provided at two positions, one side surface and an upper side surface of a bottomed envelope body having a front surface portion and a back surface portion by folding the flexible envelope body in two. The sealing piece is integrally protruded from the edge of the rear envelope to the outside of the edge line of the rear envelope, and the double-sided tape is adhered to the inner surface of each of the sealing pieces in the longitudinal direction to attach the end of the rear envelope. A double-sided opening envelope characterized by being capable of being sealed.