JPH0638640U - School bag - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a backpack belt for a school bag that has excellent durability, good appearance, and is hard to lose its shape. [Structure] A high-hardness cushion plate is cut on the upper back side of a medium-rigid cushion plate cut into the shape of the backpack, and a high-hardness cushion plate is covered on the upper surface side of the medium-hardness cushion plate. A front surface material of the same shape as the medium-hard cushion plate is overlaid, a low-hard cushion material is overlaid on the lower surface side of the medium-hard cushion plate that contacts the shoulder, and a low-hard cushion material is placed on the lower surface side. Encapsulate and overlap the back surface fabric, and sew the peripheral edge where the front surface fabric, the medium-hard cushion plate and the back surface fabric overlap with each other by sewing with a sewing thread to form the back strap main body portion, the periphery of the back strap main portion U with edging material
It is wrapped in a letter shape, and this edging material is sewn to the main part of the backpack belt with a sewing thread.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improvement of a backpack belt of a school bag, and more particularly to an improvement of a backpack belt upper band whose upper end is connected to the center of an upper portion of a back plate of a school bag body.

[0002]

[Prior art]

 The backpack belt of the conventional school bag has a configuration as shown in FIGS. 6 to 8. That is, on the back surface side of the front surface material 8 cut into the shape of the upper backpack, a soft cushion material 3 is laid on a portion that comes into contact with the shoulder, and the back surface material 4 is wrapped so as to cover the cushion material 3. The back surface cloth 4 is folded back into two folds, and the folded portion 4c is sandwiched between the front surface cloth 8 and the back surface cloth 4 with the sewing thread 9 at the edge of the front surface cloth 8. It is sewn to the edge. In order to make the upper and lower colors of the back side surface material 4 different from each other, the upper member 4a and the lower member 4b are used by being spliced at substantially the center of the upper and lower parts. It is fixed by tacking with a tack 14a penetrating the body.

[0003]

[Problems to be solved and used by the device]

 However, the following requirements have been presented for the backpack belt of this type of school bag, and the conventional backpack belt of the conventional school bag still has a problem that these requirements are not completely satisfied. “Request 1” Since it will be used for a long time, it must have sufficient durability so that it will not be damaged. “Request 2” The backpack is a place where the user pays attention every time it is used, and it is a conspicuous place, so it should be in good shape. [Request 3] It has enough cushioning so that the user's shoulder does not feel uncomfortable when carrying it on the back, and because it is buckled with the lower back belt, it is easy to bend and at the same time loses its shape. Do not damage the appearance.

In response to the above “Request 1”, the backpack belt of the conventional school bag has the back surface cloth 4 edge folded in two, and when this two-fold folded portion comes into contact with another object and rubs against it. It has a problem that it is easily worn and damaged from this portion.

Further, in order to meet the above “Request 2”, the backpack belt of the conventional school bag has the upper member 4a and the lower member 4b spliced at substantially the center of the upper and lower portions. Conspicuously (protruding to the left and right as shown in "Fig. 6" is conspicuous.) There is a problem that the appearance is bad.

Further, in order to meet the above-mentioned Request 3, the backpack belt of the conventional school bag is designed so that the use of the cushion member 3 does not make the shoulder feel uncomfortable, and the cushion member 3 is provided at the lower portion of the backpack belt. It is easy to fold because 3 is not inserted, but it loses its shape when used for a while, especially when the fabric is fatigued because the fabric is piled up in the lower part, so-called "Darkake" is usually large. The problem was that the curved backpack had a tendency to become loose.

Therefore, the present invention has been made to solve the above problems, and an object of the present invention is to provide a backpack belt for a school bag that is excellent in durability, has a good appearance, and is hard to lose its shape.

[0008]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, in order to solve the above-mentioned problems, the structure of the present invention based on the above-mentioned utility model registration claim is applied to the shoulder on the upper surface side of the medium-rigid cushion plate 1 cut into the shape of the upper back belt. The high-hardness cushion plate 2 is in contact with the upper surface side, and the high-hardness cushion plate 2 is covered on the upper surface side of the medium-hardness cushion plate 1. The low-hardness cushion material 3 is overlaid on the lower surface side of the cushion plate 1 that abuts the shoulder, and the low-hardness cushion material 3 is wrapped around the lower surface side and the back surface fabric 4 is overlaid. The overlapping peripheral edges of the surface cloth 8, the medium-hard cushion board 1 and the back surface cloth 4 are sewn with sewing threads 9 to form the backpack belt main portion 7, and the periphery of the backpack belt main portion 7 is surrounded by the lining cloth 5. Enclose in a U shape, and sew this edging material 5 with sewing thread 6. In which it took technical means formed by sewing the negative strip main body 7.

[0009]

[Action]

 Therefore, the backpack belt of the present invention, as shown in FIG. 3 and FIG. 4, encloses the entire edge portion with the edging material 5 in a U-shape, so that the inside of the edging material 5 is covered. By sandwiching the medium-hard cushion plate 1 and the like, the bending radius becomes large, and by having elasticity, it exhibits the action of suppressing wear and damage.

In addition, since the present invention stores the medium-hard cushion plate 1 as a core material in its entirety and the high-hard cushion plate 2 at the portion that abuts against the shoulder, the cushion plate retains its shape. It exhibits the effect of maintaining sex.

[0011]

【Example】

 Next, an embodiment of the present invention will be described with reference to the accompanying drawings. In the figure, 10 is the backpack belt of the present invention, and the backpack belt 10 of this school bag is provided with a mounting ring 11 at its upper end so that it is connected to the upper center of the back plate of the school bag body (not shown). Yes. Further, at the lower part of the backpack belt 10 of this school bag, there are provided locking holes 12, 12, 12, ... However, it is the same as the conventional one that a buckle is provided at the other end of the back strap lower band which connects one end to the bottom of the school bag and the pin of this buckle is engaged.

In the present invention, the medium-hard cushion plate 1 cut into the shape of the upper backpack is provided with a high-hard cushion plate 2 at a portion abutting against the shoulder on the upper surface side, and further, the high-hard cushion plate 2 is provided on the upper surface side. The cushion plate 2 is covered and a front surface material 8 having substantially the same shape as the medium-hard cushion plate 1 is stacked.

In the present application, the cushion plate (material) is referred to as high-hardness, medium-hardness, and low-hardness, but these are due to the size of the cushioning property. As a specific material, in this embodiment, a foamed synthetic resin material is used. Depending on the material of the synthetic resin and the degree of foaming, those that are soft and have large foam voids and have a large cushioning property have low hardness, while those that are relatively hard and have a small foaming void and high cushioning properties have high hardness. The intermediate properties are called medium hardness.

The medium-rigid cushion plate 1 is cut into the shape of the upper backpack belt, that is, has substantially the same shape as the backpack belt 10 of the school bag, and the high-hard cushion. Since the plate 2 is a part that comes into contact with the shoulder of the user when carrying the backpack, it corresponds to only approximately the upper half of the medium-hard cushion plate 1, and as a specific shape, the width is smaller than that of the medium-hard cushion plate 1. However, the shape is surrounded by the alternate long and short dash line 13 in FIG. The low-hardness cushion material 3 has a large thickness in order to obtain a large cushioning property. The front surface fabric 8 is usually a thick fabric.

Further, a low-hard cushion material 3 is superposed on a portion of the lower surface side of the medium-hard cushion plate 1 that comes into contact with a shoulder, and further, a low-hard cushion material 3 is encapsulated on the lower surface side of the back surface. Surface cloth 4 is layered.

Although the material of the back surface cloth 4 is not specified, a cloth of the same material as that of the satchel body, such as natural leather or artificial leather, can be used, but the thickness is usually thin. It is common to use the upper member 4a and the lower member 4b, which are differently colored, by overlapping and splicing them at substantially the center in the vertical direction.

Then, the overlapping peripheral edge portions of the front surface fabric 8, the medium-hard cushion plate 1 and the back surface fabric 4 are sewn with sewing threads 9 to form the backpack main body 7.

Then, the periphery of the backpack belt main body 7 is covered with a edging cloth 5 in a U shape, and the lining cloth 5 is sewn to the backpack belt main body 7 with a sewing thread 6.

As shown in FIGS. 3 and 4, the edging material 5 has a folded-back portion 5a on the inside which overlaps with the front surface surface material 3 side so that the edges of the material do not come out and the appearance is improved. However, it is needless to say that the folded-back portion 5a may be provided also on the side overlapping the back surface fabric 4 side, if necessary, unlike the illustration. Also, the edging material 5 is usually made of natural leather or artificial leather, but other members such as nylon fiber woven cloth, which is particularly excellent in durability, may be used.

It is desirable that the edging material 5 be provided in a series over the entire circumference of the backpack belt main portion 7, and when sewing, the U-shaped end portions and the wrapping material are provided therebetween. Of course, it is of course possible to sew the medium-hard cushion plate 1 and the back surface cloth 4 etc. together.

As mentioned above, the backpack belt 10 of the present invention has the attachment ring 11 attached to the upper end thereof. To attach the attachment ring 11, the upper portion is attached to one side of the attachment ring 11. It is rolled up and folded back, and the folded back overlapped portion is tacked with a tack 14 or sewn with a sewing thread 15.

In order to facilitate the mounting of the mounting ring 11, the high-hardness cushion plate 2 and the low-hardness cushion material 3 have their upper ends positioned slightly lower than the upper end of the medium-hard cushion plate 1. When the high-hardness cushion plate 2 and the low-hardness cushion material 3 do not overlap with each other, the thinned portion is folded back and overlapped.

[0023]

[Effect of device]

 In the present invention as described above, since the medium-hard cushion plate 1 is arranged on the whole, there is no fear of losing its shape even if it is used for a long period of time. In particular, since the high-hard cushion plate 2 is also used, the shape retention It is possible to provide a backpack bag with excellent performance.

Further, according to the present invention, since the edging material 5 encloses the medium-hard cushion plate 1 and the like, the backpack belt of the school bag which has excellent wear resistance and durability as compared with the conventional simply folded edge part is used. Can be provided.

Furthermore, in the present invention, since the entire circumference is edged by the edging cloth 5, even if a plurality of cloths are piled up, for example, the upper surface member 4a and the lower surface member 4b are provided on the back surface cloth 4. Even if a lap seam is used, these edges are hidden by the edging cloth 5, so that it is possible to provide a uniform backpack bag having a sense of unity with a whole series. It is a thing.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a backpack belt of the present invention.

FIG. 2 is a rear view.

FIG. 3 is a sectional view taken along line AA.

FIG. 4 is a sectional view taken along line BB.

FIG. 5 is a sectional view taken along line CC.

FIG. 6 is a rear view of a conventional example.

FIG. 7 is a sectional view taken along line DD.

FIG. 8 is a sectional view taken along line EE.

[Explanation of symbols]

 1 Medium Hard Cushion Board 2 High Hardness Cushion Board 3 Low Hardness Cushion Material 4 Back Side Surface Fabric 5 Edged Fabric 6 Sewing Thread 7 Backpack Belt Main Part 8 Front Side Surface Fabric 9 Sewing Thread

Claims (1)

[Scope of utility model registration request] 1. A high-rigidity cushion plate (2) is provided on the upper surface side of a medium-rigidity cushion plate (1) cut into the shape of an upper backpack, and the high-hardness cushion plate (2) is provided on the upper surface side. The cushion plate (2) is encapsulated, a front surface material (8) having substantially the same shape as the medium-hard cushion plate (1) is overlaid, and the lower surface side of the medium-hard cushion plate (1) is in contact with the shoulder at a site. A low-hardness cushion material (3) is overlaid, and a low-hardness cushion material (3) is covered on the lower surface side of the back-side surface material (4), and the front-side surface material (8) and a medium-hard cushion are stacked. The overlapping peripheral edge portion of the plate (1) and the back surface surface material (4) is sewn with a sewing thread (9) to form a backpack belt main portion (7), and the peripheral edge of the backpack belt main portion (7) is trimmed cloth. U in (5)
A backpack belt of a school bag, which is wrapped in a letter shape, and the edging material 5 is sewn to the backpack belt main portion (7) with a sewing thread (6).