JP2506845Y2 - Document holder - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a document case in which the vicinity of a binding hole is strengthened.

[0002]

[Prior Art and Problems] The conventional synthetic resin document holder
It is made by bending an integral sheet 10 'as shown in FIG . That is, in FIG. 7 , the sheet 10 'has a dotted line 7
1 is used as a folding line, and is divided into a portion 61 that serves as a front piece and a portion 62 that serves as a back piece (note that the folding line will be represented by dotted lines hereinafter). Also, the side margin 6
3, lower adhesive margin 64 and upper cover portion 65
Are integrally formed via bending lines 73, 75 and 72, respectively.

In the sheet 10 ' shown in FIG . 8 , the front piece 61 is overlapped on the back piece 62 by the bending line 71, and the bonding margin 63 is formed by the bending line 73, and the lower bonding margin 64 is formed by the bending line 75. It shows a state in which and are folded and adhered. FIG. 9 shows the relationship of each piece.
74 represents a side edge of the adhesion margin 63. The bag body thus formed is provided with binding holes 80, 80 on one side for binding to a file. When used, as shown by 90,
There is a defect that a tear occurs at the binding hole. Ma
In addition, when forming a bag, it can be adhered by heat sealing.
It is often done. Heat the bag as shown in Figs.
An example of bonding using a seal is shown. FIG. 10 shows a development sheet 10, in which the integrated sheet 10 is divided into a front piece 1 and a back piece 2 by a bending line 3, and a projection piece serving as an adhesion margin on the back piece 2 via the bending lines 40 and 50. 4, 5 are integrally formed, and the cover 6 is further provided via a bending line 60.
Are formed. 11 was formed a bag by folding the expanded sheet 10 of FIG. 10, FIG. 12 is an explanatory diagram showing a relationship between each piece as viewed from above, a table piece 1 along fold line 3 Ura It is bent on the piece 2 and the protruding pieces 4 and 5 are further bent thereon, and the side edge portions of the protruding pieces 4 and 5 are joined by heat seal welding. 9 indicates a joining line. Reference numeral 7 indicates a binding hole . FIG. 13 shows a case where a cut 71 is provided in advance in order to increase the degree of freedom of the bag. Figure
The bag shown in FIGS. 10 to 13 is formed by heat sealing.
Although it is inserted, it is difficult to say that the strength is sufficient because the seal line is integrated.
Yes.

[0004]

This invention overcomes the above-mentioned drawbacks.
In order to solve this problem, the adhesive part of the bag is
Welded by welding and provided a binding hole between the welding lines.
I got the documents.

[0005]

1 shows a first embodiment of the present invention, in which a sheet 10 has a front piece 1 and a back piece 2 which are distinguished by a fold line 3.
The protrusion pieces 4 and 5 which are made up of the front piece 1 and serve as adhesion margins on both sides of the front piece 1.
Are integrally formed. 6 is a cover formed on the back piece 2.

In the illustrated example, the protrusions 4 and 5 are designed to be folded in three. FIG. 2 shows a case where the bag body is formed, and the front piece 1 is protruded by the folding line 3
Bend with the back piece 2 together.

The projecting piece 4 is divided into sections 41, 42 and 43 which are bent by bending lines 44, 45 and 46. Figure 3 shows an explanatory diagram showing a relationship between each piece viewed bag from above, FIG. 1, FIG. 2, thus when explaining the structure of the bag in FIG. 3, the folding lines 44, the projecting pieces 4 back piece Bend to the opposite side of 2, then section 4 by the fold line 45
2 is folded back, and then the section 43 is superposed on the front piece 1 at the folding line 46. Similarly, the projecting piece 5 also has a bending line 5
It is divided into sections 51, 52 and 53 by 4, 55 and 56. The projecting piece 5 is also bent in the same manner as shown in FIG. 3 and is bonded to the front piece 1 and the back piece 2. Reference numeral 57 indicates a side of the projecting piece 5. Reference numerals 7 and 7 denote binding holes.

In this invention, the adhesive portion of the bag body thus formed (the bent pieces 43, 5 on the front piece 1 in FIG. 2 is formed .
3) is joined along the joining line 9 by heat seal welding. In the illustrated example, one with the binding hole 7 is sandwiched between the binding holes 7 and two are bonded on the opposite side . Therefore, the binding holes 7, 7
Is between the two lines 9 and 9 formed by the heat seal welding process, the line 9 serves as a reinforcing material and prevents the bag from tearing from the edge of the bag to the binding hole.

FIG . 4, FIG. 5 and FIG. 6 show the second embodiment in the same drawing, and FIG. 4 shows the expansion sheet 10 of the bag body, and the projecting piece 4 is the back piece 2 and the projecting piece. 5 differs from the case of FIG. 1 in that it is integrally formed with the front piece 1. Therefore, after bending the front piece 1 and the protruding piece 5 on the back piece 2 along the bending line 3, the bending order of the protruding piece 5 is
Although the same as in the case of FIG. 12, the bending direction of the protruding piece 4 is opposite. That is, as shown in FIGS. 5 and 6 , since the protruding piece 4 is integral with the back piece 2, the section 41 is first superposed on the front piece 1 and then the section 42 is folded back by the bending line 45. Further, the section 43 is bent on the back piece 2 and the whole is adhered. Therefore, what is visible on the front piece 1 in FIG. 5 is the section 53 of the protruding piece 5 and the protruding piece 4.
It is a section 42 of. Then, two lines 9 and 9 are formed on the sections 42 and 53 by heat seal welding, and binding holes 7 and 7 are formed between the lines.

[0010]

[Effect] The document holder according to the present invention has the above-described structure, and since there are lines formed by heat-sealing welding on both sides of the binding hole, the vicinity of the binding hole is reinforced and the bag body is formed at the binding hole. The effect of obtaining a strong bag body without causing a tear at the edge portion of the.

[Brief description of drawings]

FIG. 1 is a development view of a sheet according to a first embodiment.

FIG. 2 is a view showing a bag body formed.

FIG. 3 is a diagram showing the relationship of each piece.

FIG. 4 is a development view of a sheet according to a second embodiment.

FIG. 5 is a diagram showing a bag body formed.

FIG. 6 is a diagram showing a relationship between pieces.

FIG. 7: Development view of a conventional document insert sheet

FIG. 8 is a view showing a bag body formed.

FIG. 9 is a diagram showing the relationship of each piece.

FIG. 10 is a development view of another conventional sheet

FIG. 11 is a view showing a bag body formed.

FIG. 12 is a diagram showing the relationship of each piece.

FIG. 13 is a diagram showing an example in which a break is provided in advance.

[Explanation of symbols]

 1 Front piece 2 Back piece 3 Bending line 4 Adhesion margin projection piece 5 Adhesion margin projection piece 6 Cover 7 Binding hole 8 Rip 9 Bonding line by heat seal welding 10 Deployment sheet 41, 42, 43 Division 44, 45 , 46 Bending line 51, 52, 53 Division 54, 55, 56 Bending line

Claims (1)

(57) [Scope of utility model registration request] 1. A document holder formed as a bag body by folding a synthetic resin sheet integrally having left and right adhesive margin portions, wherein the adhesive margins on both sides of the bag body are folded. The adhesive parts that are joined are joined by a double- row heat seal welding process,
Documents insertion, characterized in that Tsuzuriana are found provided between the weld lines.