JP2004201960A - Knapsack - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a strong knapsack which does not split from a seam. <P>SOLUTION: As for the knapsack, a back protection plate 11 is sewn to the rear edge part of a large gusset plate 16, and a large diaphragm 20 is sewn to a front edge part to make a casing C. Then, the proximal end part of a lid plate 6 is sewn to the upper edge part of the back protection plate 11, and a front pocket part B is sewn to the large gusset plate 16. Reinforcing tapes T2, T3, T4 and T6 are inserted and held at respective sewing places of the large gusset plate 16, the back protection plate 11, the large diaphragm 20, the lid plate 6 and the front pocket part B. The reinforcing tapes T2, T3, T4 and T6 are sewn in the state of overlapping the ends etc. of each other between the large gusset plate 16 and the back protection plate 11, between the large gusset plate 16 and the large diaphragm 20, between the back protection plate 11 and the lid plate 6, and between the large gusset plate 16 and the front pocket part B. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a school bag.
[0002]
[Prior art]
In the past, each component that made up a school bag was made mainly of natural leather such as cowhide, and a core material was polymerized and adhered to it, and then sewn with sewing threads. (For example, see Patent Document 1), and the weight of the school bag is reduced.
[0003]
[Patent Document 1]
Registered Utility Model No. 30013939
[Problems to be solved by the invention]
However, materials such as artificial leather do not have sufficient strength, and there has been a problem that the material is torn from the seam due to long-term use.
[0005]
Then, an object of the present invention is to provide a high strength school bag which does not tear from a seam.
[0006]
[Means for Solving the Problems]
In the school bag according to the first aspect of the present invention, the back guard plate 11 is sewn to the rear edge of the large gore plate 16 and the large partition plate 20 is stitched to the front edge to form the housing C. In a school bag in which the base end of the lid plate 6 is sewn to the edge and the front pocket B is sewn to the large gore plate 16, the large gore plate 16, the back guard plate 11, the large partition plate 20, the lid The reinforcing tapes T2, T3, T4, and T6 are sandwiched between the above-described stitching portions of the plate 6 and the front pocket portion B, and the reinforcing tapes T2, T3, T4, and T6 are formed between the large gore plate 16 and the back guard plate 11. Between the large gore plate 16 and the large partition plate 20, between the back guard plate 11 and the cover plate 6, and between the large gore plate 16 and the front pocket portion B. Is sewn.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a school bag A according to an embodiment of the present invention will be described in detail with reference to FIGS.
[0008]
Reference numeral 1 denotes a tongue piece obtained by superimposing and bonding an exterior material 2, a core material 3, and an interior material 4, and sewing the left and right edges thereof with sewing threads.
T1 and T1 are reinforcing tapes sandwiched and bonded between the core material 3 and the interior material 4 at the stitching portions at the left and right edges, and the above-described sewing is performed together with the reinforcing tape T1.
[0009]
The reinforcing tape T1 and the reinforcing tapes T2, T3,... Described later are made of, for example, polyester fiber, high-molecular polyethylene fiber, nylon fiber, acrylic fiber, carbon fiber, natural fiber (cotton, hemp and animal fiber), etc. It is made by knitting a fiber material that has sufficiently high tensile strength and is hardly stretched as compared with cowhide, artificial leather, resin material and the like used as a material of each member of the school bag A of the present embodiment.
In particular, among these fiber materials, it is preferable to use a material having a low environmental load, that is, a material that can be incinerated and does not generate toxic gas during incineration. For example, Dyneema (registered trademark) manufactured by Toyobo Co., Ltd., which is an ultrahigh molecular weight polyethylene fiber having not only a low environmental load but also high chemical resistance and water resistance, is suitable.
[0010]
Since the tongue piece 1 sandwiches the reinforcing tape T1 at the seam portion, the tongue piece 1 has a high tensile strength and does not tear from the seam. Moreover, the reinforcing tape T1 is sandwiched between the core material 3 and the interior material 4, so that it cannot be seen externally.
[0011]
Reference numeral 6 denotes a cover plate which is formed by superimposing and bonding the exterior material 7 and the interior material 8, covering and bonding the protection members 9 on the left and right edges and the tip edge, and sewing the protection members 9 with sewing threads. is there.
T2 is a reinforcing tape T2 which is sandwiched and adhered between the exterior material 7 and the interior material 8 at the seam of the left and right edge portions and the tip edge portion. I have.
As a result, the cover plate 6 has a high tensile strength and does not tear from the seam.
The end of the reinforcing tape T2 extends from the base end of the cover plate 6.
[0012]
The base end of the tongue piece 1 is superimposed on the distal end edge of the cover plate 6, and they are fixed with studs 10 and 10 and sewn with sewing thread. The suturing is performed from above the reinforcing tape T2 along the leading edge of the lid member 6, whereby the reinforcing tapes T1 and T2 are sewn in a state where their intersections are overlapped, in other words, they are connected to each other. It is in a state where it is set.
[0013]
Reference numeral 11 denotes a backing plate formed by superimposing and bonding exterior materials 12, a cushioning material 13, a core material 14, and an interior material 15.
T3 is a reinforcing tape which is sandwiched and adhered between the cushioning material 13 and the core material 14 on the outer peripheral edge of the back guard plate 11.
[0014]
Reference numeral 16 denotes a lower surface of the horizontally long core member 17, on which an outer member 18 slightly wider than the outer member 18 is superposed and bonded, and at the left and right ends of the upper surface, inner members 19, 19 are superposed and bonded, so that the outer member 18 is formed. A portion 18 ′ of the core 17 extending outward on the front edge side is folded back on the core 17, and left and right side portions of the core 17 are erected at right angles by two folds. This is a large gore plate formed with 16a and 16b and made substantially U-shaped as a whole.
[0015]
T4 is a reinforcing tape which is sandwiched and bonded between the core material 17 and the exterior material 18 at the front edge of the large gore plate 16.
T5 and T5 are reinforcing tapes that are adhered to the upper surface of the large gore plate 16 along the above-mentioned two folds and at the base end by being superimposed on the reinforcing tape T4.
T6 and T6 are reinforcing tapes sandwiched and adhered between the core material 17 and the exterior material 18 at the upper end edges of the side walls 16a and 16b, and both ends thereof extend forward and rearward of the side walls 16a and 16b. I have.
[0016]
Reference numeral 20 denotes a large partition plate in which a decorative material 22 is adhered to an upper edge of a front surface of a core material 21.
[0017]
Reference numeral 23 denotes a partition plate in which a decorative material 26 is adhered to the upper edge of the front surface of a core material 25 having reinforcing tape insertion holes 24.
[0018]
Reference numeral 27 denotes a front partition plate in which a small pocket material 31 is adhered to the front surface of a core material 30 having a reinforcing tape insertion hole 28 and a belt insertion hole 29.
The small pocket material 31 is provided with a zipper at the upper end. The rear surface of the peripheral portion is attached to the front surface of the core material 30 and is sewn with sewing thread. A small pocket is formed between them.
T7 is a reinforcing tape sandwiched and bonded between the core material 30 and the small pocket material 31 at the seam, and the above-described sewing is performed together with the reinforcing tape T7.
[0019]
B is a front pocket portion formed by stitching a bellows-shaped peripheral wall sheet 32 to the left and right edges and the lower edge of the middle partition plate 23 and the front partition plate 27, respectively.
T8 is a reinforcing tape that is disposed in the front pocket portion B through the through holes 28 of the front partition plate 27 and the through holes 24 of the middle partition plate 23, and the base end thereof is formed of the front tape. The partition plate 27 is sandwiched between the core material 30 and the small pocket material 31 of the partition plate 27 by being overlapped with the reinforcing tape T7 and sewn, and is connected to the reinforcing tape T7.
[0020]
The school bag A of the present invention is obtained by polymerizing, bonding, and stitching the above members as follows.
[0021]
The rear ends of the reinforcing tapes T6 and T6 of the side walls 16a and 16b of the large gore plate 16 are sandwiched between the cushioning material 13 and the core member 14 of the back guard plate 11 along the upper edge of the back guard plate 11. It is superposed and adhered to the reinforcing tape T3 of the back guard plate 11.
The end of the reinforcing tape T2 extending from the base end of the cover plate 6 extends along the left and right edges of the back guard plate 11 between the cushioning material 13 and the core member 14 of the back guard plate 11. And is superposed and adhered to the reinforcing tapes T3 and T6.
[0022]
The required width of the rear edge of the large gore plate 16 is folded outward, and the folded portion is superimposed and bonded to the left and right edges and the lower edge of the front surface of the back guard plate 11 and sewn with sewing thread.
The suturing is performed for each of the reinforcing tapes T2, T3, and T6 sandwiched between the sewn portions, and the reinforcing tapes T2, T3, and T6 are connected to each other. The distal ends of the reinforcing tapes T5 and T5 are sewn and connected to the reinforcing tape T3 at the lower edge of the back guard plate 11.
As a result, the seam between the back guard plate 11 and the large gore plate 16 has a high tensile strength and does not tear from the seam.
[0023]
On the upper edge of the rear surface of the back plate 11, the base end of the cover plate 6 is folded back and overlapped, and the folded portion is adhered and stitched with a sewing thread.
The suturing is performed together with the reinforcing tapes T2, T3, and T6 sandwiched between the sewn portions.
As a result, the seam between the lid plate 6 and the back guard plate 11 has a high tensile strength and does not tear from the seam.
[0024]
The front ends of the reinforcing tapes T6 and T6 of the side walls 16a and 16b of the large gore plate 16 are sandwiched between the core material 21 and the decorative material 22 of the large partition plate 20 along the upper edge of the large partition plate 20. Is glued.
[0025]
On the front edge of the large gore plate 16, the left and right edges and the lower edge of the large partition plate 20 are folded back and polymerized and stitched with sewing thread. Further, the rear edge of the peripheral wall sheet 32 of the front pocket portion B is superimposed, adhered, and sewn with a sewing thread together with the front edge of the large gore plate 16 and the folded portion of the large partition plate 20.
[0026]
The suturing is performed together with the reinforcing tapes T4, T5 and T6 sandwiched between the sewn portions, and the reinforcing tapes T4, T5 and T6 are sewn and connected to each other.
As a result, the seam of the large gore plate 16, the large partition plate 20, and the peripheral wall sheet 32 of the front pocket portion B has a high tensile strength and does not tear from the seam.
[0027]
Further, the tip of the reinforcing tape T8 is overlapped and sewn to the front edge of the large gore plate 16 together with the large partition plate 20 and the peripheral wall sheet 32, and is connected to the reinforcing tape T4.
[0028]
By the above-described stitching, the back guard plate 11, the large gore plate 16, and the large partition plate 20 form a rectangular parallelepiped casing C having an open upper surface.
[0029]
Reference numeral 33 denotes a protective member which is adhered so as to cover the upper edges of the side walls 16a and 16b and the upper edge of the large partition plate 20, and sewn with a sewing thread.
Since the opening edge is sewn together with the reinforcing tapes T4 and T6 from above the protective member 33, the opening edge has a high tensile strength and does not tear from the seam.
[0030]
As described above, the housing C is sewn from above with the reinforcing tape T4 at the front edges of the side walls 16a and 16b, the reinforcing tape T3 at the rear edge, and the reinforcing tape T6 at the opening edge. Since the reinforcing tapes T3, T4, and T6 are connected to each other, they have high tensile strength and do not tear from the seam.
[0031]
Reference numeral 34 denotes a belt inserted through the belt insertion holes 29 of the front partition plate 27.
A reinforcing tape is superposed and adhered to the belt 34 (not shown), and both ends thereof are superposed and sewn to the outer peripheral edge of the back guard plate 11 together with the reinforcing tape.
[0032]
Reference numeral 35 denotes a protective member which covers the left and right edges and the lower edge of the back guard plate 11 and the rear edge of the large gore plate 16 superposed thereon and is bonded and sewn.
The large gore plate 16, the back guard plate 11, and the end of the belt 34 are sewn from above the protective member 35.
[0033]
36 covers the left and right edges of the upper end of the back guard plate 11, the rear edges of the upper ends of the side walls 16a and 16b of the large gore plate 16 overlapped therewith, and the left and right edges of the base end of the lid plate 6. Then, it is a polymerized reinforcing piece bonded and sewn.
The seam of the base end of the lid plate 6 and the large gore plate 16 and the back guard plate 11 are sewn together with the reinforcing tapes T2, T3 and T6 from above the overlapping reinforcing piece 36.
[0034]
In addition, it is preferable that the reinforcing tape is sandwiched between other sewn portions not mentioned above, and the reinforcing tape is sewn together.
[0035]
【The invention's effect】
As is clear from the above description, the school bag of the present invention has the following effects.
[0036]
A back guard plate is sewn to the rear edge of the large gore board and a large partition board is sewn to the front edge to form a housing, and the base end of the lid plate is sewn to the upper edge of the back guard board, and In a school bag with a front pocket portion sewn to a large gore plate, a reinforcing tape is sandwiched between the seam portions of the large gore plate, the back guard plate, the large partition plate, the cover plate, and the front pocket portion, and the respective reinforcing tapes But ends between the large gore plate and the back guard plate, between the large gore plate and the large partition plate, between the back guard plate and the lid plate, and between the large gore plate and the front pocket portion, etc. Are stitched in a superimposed state, so that each sewn portion has high strength and does not tear from the seam.
[Brief description of the drawings]
FIG. 1 is a perspective view of a school bag according to an embodiment of the present invention.
FIG. 2 is an exploded perspective view of a large gore plate and a front pocket portion of the school bag.
FIG. 3 is an exploded perspective view of a lid plate and a back guard plate of the school bag.
4A is a perspective view of a back guard plate, and FIG. 4B is an enlarged perspective view of a main part thereof.
FIG. 5 is an exploded perspective view of the back guard plate.
FIG. 6 is a partially cutaway perspective view of a main part of a large gore plate.
FIG. 7 is a perspective view of reinforcing tapes sandwiched between stitched portions of the school bag and connected to each other.
FIG. 8 is an exploded perspective view of the reinforcing tape.
FIG. 9 is a perspective view of the vicinity of an upper opening of a housing.
FIG. 10 is an enlarged sectional view taken along line II of FIG. 9;
11 is a cross-sectional view of a state where each member of FIG. 10 is disassembled.
FIG. 12 is a cross-sectional view showing a positional relationship of each reinforcing tape in an upper surface opening of the housing.
[Explanation of symbols]
B Front pocket part C Cases T2, T3, T4, T6 Reinforcement tape 6 Cover plate 11 Back guard plate 16 Large gore plate 20 Large partition plate

Claims (1)

A back guard plate is sewn to the rear edge of the large gore board, and a large partition board is sewn to the front edge to form a housing, and the base end of the lid plate is sewn to the upper edge of the back guard board, and In a school bag having a front pocket portion sewn to a large gore plate, a reinforcing tape is sandwiched between the seam portions of the large gore plate, the back guard plate, the large partition plate, the cover plate and the front pocket portion, and the respective reinforcing tapes But ends between the large gore plate and the back guard plate, between the large gore plate and the large partition plate, between the back guard plate and the lid plate, and between the large gore plate and the front pocket portion, etc. A school bag, which is sewn in a state in which is polymerized.

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