JPH09313234A - Handle member for bag, and its manufacture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify the attaching structure for a bag by a method wherein, at both ends of a band, an attaching rod being formed into a bar-shape, which protrudes from the center of the width of the band in the extending direction, are provided, and the attaching rods are bonded on the side wall of a bag under a state being pinched. SOLUTION: At the rear end on the right side, an engaging part 13 is formed by a protruding-recessed die 15. When a handle member P is discharged to the left side, an attaching shaft 3 at the rear end is held under a state wherein the attaching shaft 3 is fitted in an opening part 16 of a metal die 8 for injection molding, under a state being held by a holding die 17. Under such a partially remaining state, the protruding- recessed die 15 returns, and when an injection is performed again, a material flows into the engaging part 13 of the remaining attaching shaft 3, and is integrally connected to it, and a new hand member P is formed. By repeating this process in order, the handle member P is continuously formed, and taken up by a drum. The handle member P can be conveniently used by a length being required, by cutting it at a specified location while unwinding it. On the internal surfaces of both side walls of a bag V, rear papers 7, 7, are affixed, and the attaching shafts 3, 3 are fixed by pressing. The attaching structure for a bag is simple, and the handle member P is suitable for a mass-production, and can be manufactured at a low cost.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a handbag member mainly made of plastic for a bag used for handbags and a manufacturing method thereof.

[0002]

2. Description of the Related Art Various handbag members are used in paper and sheet handbags frequently used for shopping and the like. Examples thereof include a string formed by twisting paper and a uniaxially stretched film, a band formed by injection molding of plastic, and the like, and the attaching means to the bag are different.

In the case of the string form, it is general that the side wall of the bag is provided with a through hole, and a knot ball that hangs over the through hole is formed at the end of the string. Also, glue the backing paper to the side wall of the bag,
A method of sandwiching and adhering is also used, in which a string is sandwiched between them and they are adhered together. Also, in the case of a band, a bifurcated tongue that sandwiches the upper end of the bag is formed at both ends of the band, and a hooking protrusion is provided on one of the two tongues, and the protrusion is inserted into the other tongue through the bag. A stop hole is provided.

[0004]

Among the conventional plastic handbag members for bags as described above, in the case of the band type, the whole is integrally formed by injection molding, but both ends are bifurcated tongue pieces. In addition, since it has hooking protrusions and hooking holes, the structure is complicated, not only the material is used abundantly, but also the cost becomes high in molding.

On the other hand, in the case of the cord shape, the structure is simple and very inexpensive, but compared with the band type,
It has a drawback that it is hard to hit the hand during use and is easily damaged. The band format is excellent in this respect and appearance.

The present invention has been made in view of the above circumstances.
An object of the present invention is to provide a plastic bag-carrying member for a bag, which has a simple mounting structure and can be provided at a low cost despite the band type, and a manufacturing method thereof.

[0007]

A bag carrying member according to the present invention for achieving the above object is a band-type carrying member, and is a rod-shaped carrying member that extends in the extending direction from the width center of the band at both ends. The present invention is characterized in that a mounting shaft is formed so that the mounting shaft can be bonded to the side wall of the bag in a sandwiched state. The material of the member is typically made of plastic, but other materials such as paper and cloth can also constitute the present invention.

Further, according to the method of manufacturing a bag carrying member according to the present invention, an injection mold for forming a female or male hooking portion at one end of the carrying member is incorporated at the rear end of the injection mold. At the front end in the discharge direction, an opening is provided in which the discharged handbag member remains and fits at the rear end of the hook portion side, and in this partially remaining state of the discharged handbag member, an injection molding mold is used. It is characterized in that hot water is poured into the mold and injection molding is carried out to continuously mold the discharged handbag member.

[0009]

[Operation] Since the handbag member is configured as described above, when attaching it to the bag, the attachment shafts at both ends are applied to the inside of the side wall of the bag and the backing paper is adhered from above.
This is an attachment form by sandwiching adhesion similar to the conventional strap type handbag member, but since the handhold portion is a band, it does not hit the hand strongly.

In the case of the manufacturing method of the handbag member, since the member is made of plastic, a large number of handbag members are continuously molded in a connected state and cut in use, so that the handbag member is transported until use. It is advantageous for storage.

[0011]

Embodiments of the present invention will now be described with reference to the drawings.

1 to 3 show an embodiment of a bag carrying member according to the present invention. The bag carrying member P is formed by injection molding of polyethylene to form the band 1 and at the same time. Mounting shafts 3 are provided at both ends so as to extend in the width center of the band 1 and have a rod shape.

In this case, the sectional shape of the mounting shaft 3 is circular as shown in FIG. 3, but may be elliptical, triangular as shown in FIG. 4 or quadrangular as shown in FIG. As long as it is a rod shape such as a polygonal shape, etc., its shape is not particularly limited.

The band 1 is formed so that both ends thereof become narrower toward the mounting shafts 3 and 3, and bulging edges 5 and 5 which also serve as ribs are formed on both sides so as to alleviate a touch. , So that the tensile strength reaches the mounting shaft 3.

FIG. 1 shows a state in which a handbag P is attached to a shopping bag V. Backing papers 7 and 7 are attached to the inner surfaces of both side walls of the bag V, and mounting shafts 3 and 3 are attached thereto. It is held down.

Regarding the manufacturing method, as shown in FIG.
The handbag members P, P, ... Are continuously formed, and in use, cut at the connecting points of the mounting shafts 3, 3 (the position indicated by the dashed line in the figure). In that case, it is possible to provide inexpensively because it is very suitable for mass production.

FIG. 7 shows a continuous molding apparatus used in the manufacturing method of the handbag member P. The injection molding die 8 is shown in FIG.
Is composed of an upper mold 10 and a lower mold 11 which form a cavity 9. At the rear end of the one mounting shaft 3, a dovetail-shaped hooking portion 13 is formed on the end face of the mounting shaft 3. In order to do so, the mold 15 for molding is incorporated. Further, the other end that forms the mounting shaft 3 is opened in the discharge direction and has an opening 16 therein. A holding die 17 is connected to the injection molding die 8 on the open side.

The continuous molding procedure will be described with reference to FIG. 1. When the handbag member P is molded in the injection molding die 8, a hooking portion 13 is formed at the rear end on the right side by the take-in / out die 15. When this carrying member P is discharged to the left, the mounting shaft 3 at the rear end is fitted into the opening 16 of the injection molding die 8 in a state where the discharged carrying member P is held by the holding mold 17. Held in a state.

In such a partially remaining state of the discharged handbag member P, when the retractable die 15 is returned and injection is performed again, the material flows into the hooking portion 13 of the remaining mounting shaft 3 and integrally with it. Since a new handbag member P is formed by being connected, continuous molding is carried out by repeating this in sequence. What is continuously molded is wound on a drum.

FIG. 8 shows the drum 19 on which the continuous handbag members P, P, ... Are wound, which can be advantageously transported and stored in such a state, and can be manufactured by a bag manufacturer. In such a case, it can be conveniently used as necessary by cutting it at a predetermined place while rewinding.

[0021]

As described above, according to the bag-carrying member of the present invention, the structure for attaching the bag to the bag is simple, although the bag has a good appearance and does not hit the hand strongly. Therefore, it is suitable for mass production, can be provided at a low price, and is easily attached to the bag.

According to the method of manufacturing a bag-carrying member of the present invention, the above-mentioned bag-carrying members can be continuously injection-molded, and according to this, transportation and storage before use are advantageous. In this respect, it is possible to provide a cheap price.

[Brief description of drawings]

FIG. 1 is a perspective view showing a handbag member according to an embodiment in a use state.

FIG. 2 is a plan view of the handbag member.

FIG. 3 is an enlarged cross-sectional view of a mounting shaft of the handbag member.

FIG. 4 is a cross-sectional view of a mounting shaft according to another embodiment.

FIG. 5 is a sectional view of a mounting shaft according to another embodiment.

FIG. 6 is a plan view showing a state in which a handbag member is continuously molded according to the method of the present invention.

FIG. 7 is an explanatory diagram of a mold of the continuous molding apparatus.

FIG. 8 is a perspective view of a drum around which a continuously formed handbag member is wound.

[Explanation of symbols]

 P Handbag member V Bag 1 Band 3 Mounting shaft 8 Injection mold 13 Locking part 15 Entry / exit mold 16 Opening part

Claims (3)

[Claims] 1. A band-type carrying member, wherein rod-shaped mounting shafts projecting in the extension direction from the width center of the band are formed at both ends, and the mounting shafts can be bonded to the side wall of the bag in a sandwiched state. A handbag member for a bag characterized by the above. 2. The handbag member according to claim 1, wherein the member is made of plastic. 3. A method of manufacturing a band type plastic handbag member, wherein an injection mold for forming a female or male hooking portion at one end of the handbag member is incorporated at a rear end of an injection molding die. At the front end in the discharge direction, an opening is provided in which the discharged handbag member remains and fits at the rear end of the hook portion side, and in this partially remaining state of the discharged handbag member, the injection molding metal is A method for manufacturing a bag-carrying member, comprising pouring hot water into a mold and performing injection molding to continuously mold the discharged bag-carrying member.