JP2590222Y2 - Edge reinforcement structure of bag - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in an edge reinforcing member, such as a gusset member or a front partition plate, constituting a bag such as a backpack or a rucksack, which is inserted into a cloth for reinforcing the edge.

[0002]

2. Description of the Related Art Some conventional bags such as school bags and rucksacks have a reinforcing material 4 inserted as a core of the edge 2 in a reinforcing cloth 3 sewn to the edge 2. (See FIG. 1). However, since the conventional bag uses metal as the material of the reinforcing member 4, the metal must be bent in advance in accordance with the bending of the line of the edge 2 to be reinforced. It took a lot of trouble.

For this reason, there is a conventional bag in which a reinforcing member is inserted through a limited edge 2 portion such as only the upper edge 2 of the gusset member 5 or only the upper edge 2 of the front partition plate 6. The reinforcing material 4 was not inserted into the cloth 3 at the corners of the storage opening, that is, at the corners of the upper part of the gusset member 5 and the upper part of the front partition plate 6. Therefore, in the conventional bag, the corner portion has poor durability, and the shape of the storage opening is easily distorted from the corner portion due to rough handling of school children or the like, and the bag is easily damaged from the corner portion.

[0004]

Therefore, in the present invention, there is provided a belt-like edge reinforcing member which does not need to be formed in advance in accordance with the edge line, and a corner portion of a storage portion opening and a corner portion of a back support member bottom portion are provided. An object of the present invention is to provide a bag edge reinforcement structure in which a hard edge can be easily formed even in a part. That is, the present invention seeks to provide the manufacturer with a structurally reinforced bag that can reduce the working labor and the working time for the manufacturer, and that does not collapse from the edges of the corners. Things.

[0005]

According to the present invention, a band-shaped edge reinforcing member 1 made of a thermoplastic synthetic resin is formed by molding a synthetic resin, and the band-shaped edge reinforcing member 1 is heated and softened, and a bag edge 2 is formed. The bag 3 is inserted into the cloth 3 to be reinforced, bent into a required shape, and sewn and fixed to the rim 2 to form an edge reinforcing structure of the bag.

A belt-like edge reinforcing member 1 made of a thermoplastic synthetic resin is formed by molding a synthetic resin.
Is heated and softened to form a bent shape corresponding to the reinforcing portion, and is joined to the edge 2 of the bag, and the cloth 3 wound around the outside is sewn to the edge 2 so that the band-shaped edge reinforcing member 1 is The edge reinforcement structure of the attached bag is used. In addition, before the cloth 3 is sewn to the edge 2 of the bag, the band-shaped edge reinforcing member 1 can be cooled and solidified, and the cloth 3 can be sewn to the edge 2 of the bag. The reinforcing member 1 can be cooled and solidified.

[0007]

The present invention has the following functions. The belt-shaped edge reinforcing member 1 of the present invention is formed of a thermoplastic synthetic resin, and softens when heated, and not only the edge 2 of the gusset member 5 and the like, but also the corners of the upper portion of the gusset member 5 and the upper portion of the front partition plate 6. It is easy to match the shape of

Therefore, the band-shaped edge reinforcing member 1 is heated and softened in advance, and the band-shaped edge reinforcing member 1 is inserted into the cloth 3 and the cloth 3 is bent along the upper edge 2 of the bag storage portion. If it goes, the belt-like edge reinforcement member 1 inserted in the fabric 3
Are easily deformed along the curve of the line of the edge 2. Then, with the dough 3 wound around the rim 2, the dough 3 is wrapped around the rim 2.
, The band-shaped edge reinforcing member 1 inserted into the cloth 3 is also fixed to the edge 2, and the edge 2 connected to the mouth portion of the storage unit by one is completed.

The band-shaped edge reinforcing member 1 softened by heating
After being bent into a required shape, if left at room temperature or the like, it will be cooled and solidified to maintain a fixed shape. As a result, a bag having a strong edge 2 that is not easily deformed from a corner portion of the storage section or the like is completed.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of the present invention will be described below with reference to the drawings. FIG. 2 is an overall perspective view showing the band-shaped edge reinforcing member 1 according to the embodiment of the present invention. Band-like edge reinforcing member 1 of this embodiment
Is formed by molding a thermoplastic synthetic resin into a synthetic resin and integrally forming a belt with a substantially rectangular cross section.

In the present invention, the shape of the edge reinforcing member 1 is band-shaped because it is suitable for being softened and wound around the edge 2 and suitable for forming a series of connected edges 2. is there. Therefore, the strip-shaped edge reinforcing member 1 of the present invention is provided.
The cross-sectional shape of is not limited to the one having a substantially rectangular cross section as in this embodiment, but is inserted into the fabric 3 and the fabric 3 is wound around the edge 2 to form a series of connected edges 2. As long as the shape is suitable for the above, the present invention can be implemented even if it has a substantially circular cross section or a substantially square cross section.

In the present invention, the band-like edge reinforcing member 1 is provided.
The reason why the thermoplastic synthetic resin is used is that the thermoplastic synthetic resin is softened when heated to a certain temperature or more, easily deformed, and easily solidified by being left at room temperature. In the embodiment, a thermoplastic synthetic resin softening at 60 ° C. or more is used. FIG. 3 is a cross-sectional view showing a state in which the cloth 3 into which the band-shaped edge reinforcing member 1 has been inserted is sewn and fixed to the edge 2 of the gusset member 5.

As described above, the band-shaped edge reinforcing member 1 is made of
Because of the property of softening at a temperature of not less than 0 ° C., prior to the mounting operation shown in FIG. 3, a heating step of passing between hot plates to soften is performed, and the softened band-shaped edge reinforcing member 1 is inserted into the cloth 3. You. In this embodiment, the fabric 3 to be sewn and fixed to the edge 2 is folded in two along the longitudinal center line so as to cover the edge 2 easily, and the edge of one of the folded sides is further folded inward. .

The method of folding back the cloth 3 of this embodiment is such that the band-shaped edge reinforcing member 1 of FIG. 2 can be easily inserted into the small space formed therein, and that the band-shaped edge reinforcing member 1 is lowered during the sewing operation. It is a folding method that does not fall down. Therefore,
In the case where it is not necessary to consider the slip-off of the band-shaped edge reinforcing member 1 during the sewing work, the present invention can be carried out simply by sandwiching the band-shaped edge reinforcing member 1 in the folded fabric 3. Alternatively, the edge turned inward may be turned back wider to sandwich the edge between the band-shaped edge reinforcing member 1 and the edge 2.

In this embodiment, taking into consideration the appearance and the like,
Although the same fabric 3 as the exterior fabric of the bag body is used for the material of the fabric 3, in the present invention, since the material of the fabric 3 is not particularly limited, even if a fabric 3 different from the exterior fabric is used. No problem. FIG. 4 is a partially cutaway perspective view showing a state in which the cloth 3 into which the band-shaped edge reinforcing member 1 of this embodiment has been inserted is attached to the edge 2 of the bag storage section.

That is, FIG. 4 shows the upper edge 2 of the gusset member 5 and the upper edge 2 of the front partition plate 6 which constitute the mouth portion of the bag storage portion.
2 shows a state in which the cloth 3 into which the band-shaped edge reinforcing member 1 is inserted is wound and sewn and fixed. The band-shaped edge reinforcing member 1 inserted into the cloth 3 maintains the softened state for a while, and is easily deformed with a small force.

Therefore, if the cloth 3 is wound in this order on the upper edge 2 of the left gusset member 5, the upper edge 2 of the front partition plate 6, and the upper edge 2 of the right gusset member 5, the bag can be stored. The edge 2 connected by a single line to the mouth of the part can be easily formed.
In this embodiment, the band-shaped edge reinforcing member 1 softened by heating is used.
Is inserted into the fabric 3 first, and then the fabric 3 is wound around the edge 2. However, the band-shaped edge reinforcing member 1 that has been heated and softened is first bent into a shape corresponding to the edge 2, and The present invention is also applicable to a configuration in which the cloth 3 is wound around the outside after joining.

Further, in this embodiment, in consideration of ending the reinforcing work of the rim 2 in a series of continuous work, the sewing work is performed while the band-shaped rim reinforcing member 1 is still softened. After that, the band-shaped edge reinforcing member 1 is cooled and solidified by leaving it at room temperature for a while. However, the band-shaped edge reinforcing member 1 bent into a required shape is cooled and solidified at room temperature first, and after cooling and solidifying, It is also possible to carry out by performing the sewing operation of No. 3.

However, when the sewing thread 7 is passed through the band-shaped edge reinforcing member 1 itself inserted into the cloth 3 and the band-shaped edge reinforcing member 1 is sewn to the edge 2 together with the cloth 3, Since the sewing operation is performed before the band-shaped edge reinforcing member 1 is solidified, that is, when the band-shaped edge reinforcing member 1 is cooled and solidified after the sewing operation as in this embodiment, the sewing thread 7 easily penetrates. , Preferred for implementation.

At the stage when the sewing operation and the cooling and solidifying operation are completed, the mounting operation of the band-shaped edge reinforcing member 1 is completed. FIG.
FIG. 4 is a partially cutaway perspective view showing a state in which the cloth 3 into which the band-shaped edge reinforcing member 1 of this embodiment has been inserted is attached to the bottom and corners of the backrest member 8. The bottom and corner portions of the backrest member 8 are easily damaged by repeated use of the bag.
Shows an application example of the strip-shaped edge reinforcing member 1 of the present invention.

The procedure for attaching the band-shaped edge reinforcing member 1 to the edge 2 of the backrest member 8 is the same as that of the embodiment of FIG.
The band-shaped edge reinforcing member 1 heated and softened by passing between hot plates is inserted into the cloth 3, the cloth 3 is wound around the bottom 2 and the edge 2 of the corner portion, sewn and fixed, and left at room temperature for a while to cool. By doing so, the band-shaped edge reinforcing member 1 is solidified.

As a result, the backrest member 8 which is easily damaged is provided.
Can be easily reinforced at the bottom and at the corners, and a stronger bag can be made than the conventional one simply covered with the fabric 3. The mounting procedure of the embodiment of the present invention having the above configuration will be described below. The band-shaped edge reinforcing member 1 of this embodiment is integrally formed by synthetic resin molding.
It is cut to an appropriate length according to the edge 2 to be attached.

The cut strip-shaped edge reinforcing member 1 is passed between hot plates and heated to 60 ° or more to be softened. The softened band-shaped edge reinforcing member 1 is disposed in the fabric 3 that has been folded in two in advance, and one edge of the folded fabric 3 is folded back. That is, it is formed in the state of FIG.

Then, if the cloth 3 is bent along the edge 2 of the gusset member 5, the pre-partitioning plate 6 and the like in the state of FIG. 3, the band-shaped edge reinforcing member 1 easily goes along the line of the edge 2. I can do it. Band-like edge reinforcing member 1 in wound fabric 3
Is maintained in a softened state for a while, and is in a state in which the sewing thread 7 is more easily penetrated than in a state after being solidified.

Therefore, in the case where the band-shaped edge reinforcing member 1 is sewn and fixed together with the cloth 3, if the sewing operation is continuously performed while the band-shaped edge reinforcing member 1 is softened, the winding operation can be performed. The sewing operation can be performed in a series of operations, thereby reducing the work labor and the work time. After the winding operation and the sewing operation are completed, the bag to which the band-shaped edge reinforcing member 1 is attached is left at room temperature for a while, and the heated and softened band-shaped edge reinforcing member 1 is cooled and solidified. The installation work is completed.

However, in the step of solidifying the band-shaped edge reinforcing member 1, a cooling / solidifying step using a cooler or the like may be added. This is because, depending on the type of the synthetic resin constituting the band-shaped edge reinforcing member 1, some of the synthetic resin does not soften unless heated to a considerably high temperature. This is a step added when it is necessary to rapidly cool and solidify the band-shaped edge reinforcing member 1.

Accordingly, the band-shaped edge reinforcing member 1 of this embodiment, which is softened only by being heated to only about 60 ° C., can sufficiently raise the working efficiency by the method of cooling at room temperature and solidifying at room temperature. There is no need for a cooling / solidifying step using such a method. As a result, a bag, which has not been conventionally provided, in which the mouth portion of the storage portion and the corner portion of the bottom portion are reinforced by joining together, is completed by a series of operations.

[0028]

According to the present invention, there is provided an edge reinforcement structure in which the work of attaching the cloth and the operation of adjusting the shape of the reinforcing member to the line of the edge can be performed in a series of operations. Therefore, the worker can reduce the labor for attaching the edge reinforcing member and shorten the working time. In addition, the user can easily connect the storage portion and the corner portion of the bottom, which are not conventionally available, to a bag having high strength. Can be provided.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view showing a conventional bag edge reinforcing method.

FIG. 2 is an overall perspective view showing the band-shaped edge reinforcing member 1 of the embodiment of the present invention.

FIG. 3 is a cross-sectional view showing a state in which the cloth 3 into which the band-shaped edge reinforcing member 1 has been inserted is sewn and fixed to the edge 2 of the gusset member 5;

FIG. 4 is a partially cutaway perspective view showing a state in which the cloth 3 into which the band-shaped edge reinforcing member 1 has been inserted is attached to the edge 2 of the storage section.

FIG. 5 is a partially cutaway perspective view showing a state in which the cloth 3 into which the band-shaped edge reinforcing member 1 has been inserted is attached to the base and the corner of the backing member 8;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Band-shaped edge reinforcement member 2 Edge 3 Fabric 4 Reinforcement material 5 Depth member 6 Front partition plate 7 Sewing thread 8 Backing member

Claims (4)

(57) [Scope of request for utility model registration] 1. A band-shaped edge reinforcing member (1) made of a thermoplastic synthetic resin is formed by synthetic resin molding, and the band-shaped edge reinforcing member (1) is heated and softened to reinforce the bag edge (2). An edge reinforcement structure for a bag, which is inserted into the fabric (3), bent into a required shape, and sewn the fabric (3) to the edge (2). 2. A band-shaped edge reinforcing member (1) made of a thermoplastic synthetic resin is formed by synthetic resin molding, and the band-shaped edge reinforcing member (1) is heated and softened to have a bent shape corresponding to a reinforcing portion. In addition to being joined to the edge (2) of the bag, the fabric (3) wrapped around the outside is sewn to the edge (2) to attach the band-shaped edge reinforcing member (1) to the edge (2). Edge reinforcement structure of the bag. 3. The bag edge according to claim 1, wherein the band-shaped edge reinforcing member (1) is cooled and solidified before sewing the cloth (3) to the edge (2) of the bag. Reinforcement structure. 4. The edge reinforcement of a bag according to claim 1, wherein after the cloth is sewn to the edge of the bag, the band-shaped edge reinforcement member is cooled and solidified. Construction.