JP3185077B2 - Backrest of backpack bag - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a backing member for a backpack type bag such as a backpack or a rucksack, which has a cushioning material inside and a backing member having an uneven surface. It is about improvement.

[0002]

2. Description of the Related Art In a conventional backrest member of a backpack type bag, when a cushion material such as sponge or urethane is inserted into the inside to form irregularities on the outer surface, the outer cloth and the back are formed at a valley portion without the cushion material. The plate was directly sewn and fixed (see FIGS. 1 and 2). For this reason, in the conventional backrest member, it is difficult to make the sewing work on the hard and thick backboard correspond to the bending of the line formed by the cushion material, and extra work is required for the work.

On the other hand, the unevenness of the cushion material cannot be formed gently. In addition, the conventional backrest member has a disadvantage that the sewn portion lacks a sense of volume because the sewn portion has only the thickness of the back plate and the outer cloth. Furthermore, in the conventional backing member, since one piece of the outer cloth is used, the influence of the unevenness of the cushion material appears on the outer cloth after sewing, and wrinkles are formed on a part of the outer cloth, particularly near a corner. There was also a problem that it easily occurred.

[0004]

Therefore, according to the present invention, by providing a backing member which does not require sewing of the outer fabric and the backboard, any line formed by the cushion material can be bent. To be able to cope with, and wrinkles do not occur on the exterior fabric due to the influence of the unevenness of the cushion material,
It is another object of the present invention to provide a backrest member capable of giving a sense of volume to a portion where a cushion material is not inserted.

[0005] That is, the present invention aims to reduce the working labor for the manufacturer, and to provide the user with a backing member that is more attractive than the conventional one.

[0006]

According to the present invention, the back plate 1,
In a backing member of a backpack type bag composed of a cushion material 2 and an exterior material 3 and having irregularities on the outer surface, the exterior material 3 is cut in accordance with the irregularities of the cushion material 2, and a valley of the cut exterior material 3 is formed. Fold the edge forming the part downward,
A concave portion 4 is formed by joining with the edge of the other cut exterior fabric 3, and a hook-and-loop fastener 5 is covered below and outside the recess 4, and the edge of the exterior fabric 3 and the hook-and-loop fastener 5 are sewn. I fix it,
A surface fastener 5 corresponding to the surface fastener 5 fixed to the concave portion 4 is provided on the back plate 1, and is used as a back support member of a backpack type bag in which a cushion material 2 is disposed at a raised portion between the back plate 1 and the exterior cloth 3. I have.

Also, a pie pin 6 is inserted into the recess 4,
The outer cloth 3, the hook-and-loop fastener 5, and the pie pin 6 are sewn and fixed as a backrest member of a backpack type bag.

[0008]

The present invention has the following functions. The exterior fabric 3 of the present invention is different from the conventional one, and is cut in advance in accordance with the unevenness formed by the cushion material 2. Therefore, according to the present invention, the exterior cloth 3 can be fixed to the back plate 1 without causing wrinkles near the corners due to the influence of the unevenness of the cushion material 2.

The edge forming the valley of the cut outer packaging material 3 is joined to the edge of another cut outer packaging material 3 to form a concave portion 4. The fastener 5 is covered and integrally fixed by sewing. On the other hand, a hook-and-loop fastener 5 is also provided on the back plate 1, and the hook-and-loop fastener 5 of the recess 4 is surface-bonded to fix the exterior fabric 3 and the back plate 1.

Therefore, the backing member according to the present invention does not require the troublesome work of forcibly sewing the soft outer cloth to the hard and thick backing plate 1 as in the conventional backing member. In addition, it is possible to form the unevenness of the cushion material 2 in a more complicated curved line. In addition, in the present invention, since the thickness of the concave portion 4 also occurs in the valley portion where the cushion material 2 is not inserted, the valley portion of the conventional back support member to which the outer cloth 3 and the back plate 1 are sewn and fixed is used. Thus, the lack of a sense of volume is also eliminated.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of the present invention will be described below with reference to the drawings. FIG. 3 is an overall perspective view showing the backrest member 7 according to the embodiment of the present invention. The backing member 7 of this embodiment is such that a sponge serving as a cushioning material 2 is formed on a plastic backing plate 1 in a U-shape having a thickness and a T-shape having a small thickness. 1 and 2, there is no difference from the conventional backrest member 7 shown in FIGS.

However, in the conventional backing member 7, a single piece of the outer cloth 3 is used, but in this embodiment, the outer cloth 3 is cut in advance in accordance with the unevenness of the cushion material 2. An edge forming a valley portion of the cut exterior fabric 3 is bent downward, and is joined to an edge of another cut exterior fabric 3 to form a concave portion 4 having a shape projecting downward, and a surface fastener 5 is formed. The exterior fabric 3 and the backboard 1 are surface-adhered and fixed via the.

Therefore, in this embodiment, it is necessary to sew the outer cloth 3 to the back plate 1 in a manner similar to the conventional back support member 7 in accordance with the unevenness generated by the cushion material 2. No wrinkles are formed near the corners of the unevenness. Although a plastic plate is used for the back plate 1 in this embodiment, the material of the back plate 1 is not limited in the present invention.
There is no problem even if the above is carried out, and similarly, the cushion material 2 may be made of another resin foam such as urethane.

FIG. 4 is a cross-sectional view of the backrest member 7 of this embodiment,
It is sectional drawing in the A line. FIG. 4 shows the structure around the concave portion 4 of this embodiment. As described above, the edges of the exterior cloth 3 cut in advance according to the unevenness of the cushion material 2 are joined, and A concave portion 4 having an r-shaped cross section is formed in a protruding shape. A hook-and-loop fastener 5 is covered on the lower outer side of the concave portion 4, and the outer cloth 3 and the surface are kept in that state, that is, in a state where the hook-and-loop fastener 5 is covered by an edge forming a valley of the outer cloth 3. The fastener 5 is integrally sewn and fixed by the sewing thread 8.

Therefore, in this embodiment as well, the same sewing operation steps as those of the conventional backing member 7 are required, but the conventional backing member 7 is made of a soft outer cloth 3 which is hard and thick. 1, the sewing operation in this embodiment merely involves sewing two thin outer cloths 3 and a hook-and-loop fastener 5 that encloses them. Therefore, the sewing operation is easier than the conventional one, and the working efficiency can be improved.

A hook-and-loop fastener 5 corresponding to the hook-and-loop fastener 5 sewn and fixed below the recess 4 is bonded and fixed on the back plate 1 with an adhesive, and both hook-and-loop fasteners 5 are in contact with each other. By wearing, the exterior cloth 3 and the backboard 1
It is fixed with a sponge in between. Therefore, the backing member 7 of this embodiment is similar to the conventional one in that
And the backboard 1 are not directly sewn and fixed, but the exterior cloth 3 and the backboard 1 are detachably fixed by the hook-and-loop fastener 5.
If any of the back plate 1, the cushioning material 2, and the exterior fabric 3 is damaged or the quality is deteriorated, only one member (for example, the exterior fabric 3) is used without replacing other members. Can be easily replaced.

FIG. 5 is a partially enlarged sectional view showing another embodiment of the present invention. The mounting structure of the back plate 1, the cushioning material 2, the exterior cloth 3, and the hook-and-loop fastener 5 in this embodiment is as follows.
3 and 4, but in this embodiment,
The pie pin 6 is inserted into the recess 4, and the pie pin 6 is sewn and fixed together with the exterior cloth 3 and the hook-and-loop fastener 5.

As described above, in the conventional backing member 7, since the exterior fabric 3 is directly sewn and fixed to the backboard 1, the sewing thread 8 appears on the surface of the completed backing member 7, Both the wrinkles near the corners and the appearance of the backrest member 7 were deteriorated. 3 and 4 eliminate the disadvantages of the conventional example. In the examples of FIGS. 3 and 4, the sewing thread 8 does not appear in the appearance, and The line represents the uneven line of the cushion material 2 and forms a pattern.

In the embodiment shown in FIG. 5, a pie pin 6 is added to the recess 4 in order to further improve the appearance of the backrest member 7 shown in FIGS. A backing member 7 in which pie pins 6 colored in various colors are completed,
Furthermore, it forms the pattern of a shoulder bag. In addition to this decorative effect, the pie pin 6 also serves as a core of the concave portion 4, so that when pressure is applied from above the concave portion 4, the pie pin 6 is fixed only by the sewing thread 8 from the side. This also increases the durability of the recess 4.

The use of the embodiment of the present invention having the above configuration will be described below. The back plate 1 constitutes a rear plate of a storage portion of a backpack such as a school bag or a rucksack, and the exterior fabric 3 is a fabric that comes into contact with the back and the waist when the backpack is carried. Lumber 2
Is a member that serves to reduce vibrations and shocks transmitted to the back and waist.

A cushioning material 2 is arranged on the back plate 1 in consideration of the appearance and feel when touching the body, etc. In order to facilitate fixing of the exterior cloth 3 and the back plate 1, A band-like portion 9 into which the cushion material 2 is not inserted is formed. The exterior fabric 3 is
The sheet is cut by adding a dimension corresponding to a curve drawn by the cushion material 2 arranged on the back plate 1 and a dimension forming the r-shaped concave portion 4.

The back plate 1 of the edges of the cut exterior fabric 3
The part in contact with the outer peripheral part 10 is bonded and fixed to the back plate 1 by the hook-and-loop fastener 5 or an adhesive, but the part in contact with the band-like part 9 where the cushion material 2 is not inserted, and the edge forming the valley part is downward. It is bent and joined to the edge of the other cut outer packaging material 3 to form a concave portion 4 having an r-shaped cross section. A hook-and-loop fastener 5 is wrapped below the concave portion 4 with a sewing thread 8. Sewing is fixed integrally.

As described above, in this embodiment, the pie pin 6 is also sewn and fixed together in the embodiment shown in FIG. On the other hand, the hook-and-loop fastener 9 corresponding to the hook-and-loop fastener 5 below the recess 4 is also fixed to the belt-like portion 9 on the back plate 1 where the cushion material 2 is not inserted by an adhesive. When the hook-and-loop fastener 5 is surface-bonded, the exterior fabric 3 and the back plate 1 are fixed, and the backing member 7 is completed.

A gusset member, a front partition plate, a lid, a shoulder belt, and the like which constitute a bag storage section are attached to the completed backing member 7, and a backpack such as a school bag, a rucksack or the like is completed.

[0025]

According to the present invention, it is not necessary to sew the outer cloth and the backboard, and the unevenness due to the cushion material can be formed into a gentle curved line, and no wrinkle is generated on the outer cloth due to the influence of the cushion material. Also, there is provided a backrest member capable of giving a sense of volume to a portion where a cushion material is not inserted.

Therefore, the worker can receive the backing member which can easily attach the outer cloth and can reduce the work labor, and the user can provide the user with a wrinkle-free and voluminous appearance. Good back support members can be provided.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a school bag to which a conventional backrest member 7 is attached.

FIG. 2 is a sectional view of a conventional back support member 7;

FIG. 3 is an overall perspective view showing a backrest member 7 according to the embodiment of the present invention.

FIG. 4 is an AA showing the backrest member 7 according to the embodiment of the present invention.
Line sectional view.

FIG. 5 is a partially enlarged sectional view showing a backrest member 7 according to another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Backboard 2 Cushion material 3 Exterior cloth 4 Depression part 5 Surface fastener 6 Pie pin 7 Backing member 8 Sewing thread 9 Band-shaped part 10 Outer periphery

Claims (2)

(57) [Claims] 1. A backing member for a backpack type bag comprising a back plate (1), a cushion material (2), and an exterior material (3), and having an uneven surface on the outer surface, wherein the exterior material (3) is a cushion material. Cut according to the irregularities of (2), the edge forming the valley of the cut exterior fabric (3) is bent downward, and joined to the edge of another cut exterior fabric (3) to form a recess. A part (4) is formed, and a hook-and-loop fastener (5) is wrapped below and outside the hollow part (4), and the edge of the exterior cloth (3) and the hook-and-loop fastener (5) are sewn and fixed. A hook-and-loop fastener (5) corresponding to the hook-and-loop fastener (5) fixed to the portion (4) is provided on the back plate (1), and a cushion material (2) is provided on a raised portion between the back plate (1) and the outer cloth (3). ) Is arranged on the backrest member of the backpack type bag. 2. A pie pin (6) is inserted into the recess (4), and an exterior fabric (3), a hook-and-loop fastener (5), and a pie pin (6) are sewn and fixed. The backrest member of the backpack type bag described in the above.