JPH0516947A - Foldable tote bag - Google Patents

Abstract

PURPOSE:To improve drastically the storage force of a tote bag while maintaining the automated manufacture processes for a tote bag which is made of one sheet. CONSTITUTION:The tote bag consists of a bag main body 1 for which a sheet of a thermoplastic synthetic resin film is folded and one side end and a bottom part are welded to form into a bag shape, and a handle member 10 which is attached to the opening of the bag main body 1. Folded parts 2 which are folded inward are formed on both side parts of the bag main body 1, and two bottom plates 6, 7, which are divided at the center, are fixed on the bottom of the bag main body 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a folding bag made of synthetic resin used for carrying canned beer and the like.

[0002]

2. Description of the Related Art Conventionally, a bag made of synthetic resin of this type is known as shown in FIGS. 4 (a) and 4 (b).

This handbag is composed of a bag body A, a handbag C attached to a mouth portion B of the bag body A, and a bottom member D such as a mount. The mouth portion B is opened and the bottom member is placed at the bottom. D can be laid, and a product can be put in and used as shown in FIG.

However, in the manufacturing process of this handbag, the first step is to form a folded part at both ends of the tubular plastic film, the second step is to heat-bond one end to form the bottom part, and the mouth part is to be formed. After inserting a paper-made reinforcing material, bending it, and punching the hanging tool insertion hole, the third step of attaching the hanging tool to the inside of the mouth, and the fourth step of setting the paper bottom plate with a special shape in the bag It is necessary and there are many processes that have to rely on manual work. Therefore, although the product itself is useful, the manufacturing cost remains high.

Therefore, the applicant of the present application filed Japanese Patent Application No. 2-2814.
In No. 30, we proposed a handbag that eliminates the complicated manufacturing process of the conventional synthetic resin handbag.

As shown in the perspective view of FIG. 5, this carrying bag has a bottom E formed by folding the center of a thermoplastic synthetic resin film made of a single sheet, and fixing a bottom plate F to the bottom E, and further, A fusion bonding portion G is formed at a side end portion of the superposed films to form a bag body, and a handbag member H is attached to an opening portion of the bag body.

Compared with the conventional handbags, the handbags can greatly simplify the process of processing the raw material sheet, and thus the manufacturing process can be completely automated.

[0008]

However, in this handbag, the side edges are relatively flat and are fused together, and are relatively flat, and lack in breadth in the depth direction.

Therefore, it is difficult to store a large amount of cans or the like in the handbag, and if a large amount of cans are stored, there is a problem such that the fusion-bonded portions at both ends are peeled off.

[0010] The problem to be solved in the present invention is to greatly improve the storage capacity of the handbag bag made of the above-mentioned single sheet while maintaining the automated manufacturing process.

[0011]

In order to solve the above-mentioned problems, a folding handbag according to the present invention is formed by folding a single sheet of a thermoplastic synthetic resin film by fusing one end and the bottom thereof and fusing. It is composed of a bag body and a handbag member attached to the opening of the bag body, and has folding parts that are folded inwardly on both sides of the bag body, and is further divided at the center into the bottom part of the bag body. It is characterized in that one bottom plate is fixed.

[0012]

In the folding handbag of the present invention, by changing the material of the bag body from the conventional tubular material to a sheet material, folding, fusing and fusing can be facilitated, and the manufacturing process can be automated, and the bag surface can be achieved. Multi-color printing is also possible and the sales promotion function can be further enhanced.

Further, since the folded portions are formed at both ends of the bag body, when used, the folded portions widen and the opening has a rectangular planar shape, and the fusion-bonded portions at the side ends are peeled off. It is possible to store a large amount of things without any problems.

[0014]

1 is a perspective view showing a handbag according to an embodiment of the present invention in use.

The handbag 20 has a bag body 1 formed of a single piece of synthetic resin sheet, and has a folded portion 2 which is folded inward at both sides, and a sheet piece is provided on one of the folded portions 2. A fusion-bonding portion 3 for forming a tubular shape is formed. Four
Is a fusion-bonding part of the bottom part 5, and two bottom plates 6 and 7 made of cardboard divided at the center are fixed to the bottom part 5. Reference numeral 8 is a reinforced opening portion in which a reinforcing piece 9 such as a cardboard mount or a plastic plate is fixed and reinforced inside the laminated synthetic resin sheet pieces 1. Reference numeral 10 is a plastic handbag member formed by a punching die, and is mounted by sandwiching the reinforcing opening 8.

FIG. 2 is a perspective view showing the folded handbag in a folded state. As shown in FIG. 2, the folded bag is thin and flat, which is convenient for storage without taking place.

Next, the manufacturing process of the folding handbag according to the present invention will be described with reference to FIGS.

First, as shown in (a), a reinforcing sheet 9 made of cardboard and bottom plates 6 and 7 are glued or heat-melted on a roll-shaped synthetic resin film having a thickness of 10 to 100 μm and whose surface is previously printed. Then, the reinforcing pieces 9 are fixed to each other at a predetermined interval by winding, and the reinforcing piece 9 on the upper side is rolled up and the upper end is bent to form the reinforcing opening 8. Next, as shown in (b), it is cut into a sheet piece having a pair of reinforcing pieces 9 and bottom plates 6 and 7, respectively. Then, as shown in (c), the pair of reinforcing pieces 9, 9 arranged on the left and right and the bottom plates 6, 7 are bent inward so that they overlap each other. Next, as shown in (d), the ends of the bent sheet pieces are overlapped and melted to form a fusion-bonded portion 3 to form the sheet piece into a tubular shape. Next, as shown in (e), a hole 8a for attaching a handbag is provided in the reinforced opening 8 by punching, and further, as shown in (f), a cylindrical sheet piece is adsorbed and spread from above and below, Fold inward from both ends of the reinforcing piece 9 and the bottom plates 6 and 7 and press,
The folding parts 2 on both sides of the handbag are formed. Next, as shown in (g), the bottom portion including the lower end portion of the folded portion 2 is welded to form the fusion-bonded portion 4 and formed into a bag shape. Finally, as shown in (h), the handbag member 10 is attached to the hole 8a for handbag attachment formed by punching, and the manufacturing of the folding handbag 20 is completed.

As described above, the folding handbag according to the present invention can be manufactured by a simple process, and the mechanization of all processes can be realized.

[0020]

As described above, the handbag according to the present invention comprises a bag body formed by folding a single sheet of thermoplastic synthetic resin film and fusing one end and the bottom to form a bag, and this bag. A baggage member attached to the opening of the main body, and folding parts are formed on both sides of the bag main body, and two bottom plates divided at the center are fixed to the bottom of the main bag body. ing. Therefore, bending, fusing, and fusing can be facilitated, the manufacturing process can be automated, and multicolor printing can be performed on the surface of the bag, so that the sales promotion function can be further enhanced.

Furthermore, since the folded portions are formed at both ends of the bag body, when used, the planar shape of the opening is rectangular due to the folded portions, and the fusion-bonded portions at the side ends are peeled off. As a result, a large number of cans can be stored, and the storage capacity of the handbag can be greatly improved.

[Brief description of drawings]

FIG. 1 is a perspective view showing a handbag according to an embodiment of the present invention in use.

FIG. 2 is a perspective view showing the folded handbag of FIG. 1 in a folded state.

FIG. 3 is an explanatory view showing a manufacturing process of the folding handbag of the present invention.

FIG. 4A is a perspective view showing a conventional handbag in a folded state, and FIG. 4B is a perspective view showing a use state.

FIG. 5 is a perspective view showing a conventional handbag in a folded state.

[Explanation of symbols]

 1 Bag body 2 Folding part 3,4 Fusion part 5 Bottom part 6,7 Bottom plate 8 Reinforcement opening 9 Reinforcing piece 10 Handbag 20 Folding handbag

Claims (1)

Claim: What is claimed is: 1. A single-sheet thermoplastic synthetic resin film is folded, and a bag body is formed by fusing one end and a bottom to form a bag, and the bag body is attached to the opening of the bag body. And a baggage member, and formed on both sides of the bag body are inwardly folded parts, and further divided at the bottom of the bag body at the center.
A foldable carrying bag characterized by a fixed bottom plate.