JP2003180428A - Satchel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a satchel whose lower side corners of the front pocket part of a main body are structured resistant to wearing. <P>SOLUTION: A front plate 20 to constitute the pocket part 13 of the main body of this satchel and a small gusset member 17 without end thinning almost orthogonally attached to the front plate 20 are sewed together from outside to structure lower end corners in the front pocket part 13 of the satchel main body 1 strong against wearing. Because the small gusset member 17 without end thinning is used, wearing to an extent to open a hole by long time use can be prevented. The sewing like this is enabled by improvement of an industrial sewing machine. Thus cost-up by increasing the number of parts and man- hour can be prevented because special parts such as reinforcing metal fittings are not required. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a school bag in which the corners on both lower sides of a front body pocket portion of a school bag body have a structure resistant to abrasion.

[0002]

2. Description of the Related Art Corners on both lower sides of a front body pocket portion of a school bag body are easily worn by abrasion. FIG. 5 is a perspective view of a conventional typical school bag. As shown in the figure, in the conventional school bag 100, a small-capacity front body pocket 104 is installed in the front part of a large-capacity school bag body 102. The front pocket 104 is shown in FIG.
As shown in (a), the generally rectangular front plate 105
And a small gore member 106 that is sewn to the front plate 105 at a substantially right angle. Conventionally, these two materials have been sewn by so-called reverse stitching due to the limitation of the sewing machine used for sewing. That is, the front plate 105 and the peripheral edge portions 105a and 106a of the small gore member 106 that is sewn to the front plate at substantially right angles are folded back inward, and the portions are sewn by thread 107. Since the small gore member 106 that constitutes the side surface of the front pocket 104 also has to be folded back inward, as shown in FIG. 6B, the back side of the peripheral portion is formed as an edge-cutting portion 106b with a width of about 1 cm. I had to thin it. However, the edge thinning section 106b surrounded by the alternate long and short dash line in FIG. 6 (b) is located at the corners on both lower sides of the front pocket 104. Therefore, after a long period of use, the thin edge-cutting portion 106b is worn out and a hole is opened. Therefore, the applicant of the present application, as shown in FIG. 5, mounted reinforcing metal fittings 110 at the corners for reinforcement (utility model registration No. 3075222).

[0003]

However, the one using the reinforcing metal fittings 110 has a drawback that the cost increases as the number of parts increases. Moreover, since the number of steps during manufacturing increases, that amount will also be reflected in the cost. The present invention, without increasing the number of parts and the number of steps,
Therefore, it is an object to provide a school bag having a similar or higher reinforcing effect at low cost.

[0004]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides a front plate constituting a front trunk pocket portion of a school bag body, and a small goosewood member which is attached to the front plate at a substantially right angle and does not have edge. Is sewn on the outside,
Provided is a school bag in which corners on both sides of a lower part of a front body pocket portion of the school bag body are structured to be resistant to wear. The use of small goosewood without scouring helps prevent wear that would result in the opening of holes even after many years of use. Such sewing is made possible by improving the industrial sewing machine. As a result, no special parts such as reinforcing metal fittings are required, so that it is possible to avoid high costs due to an increase in the number of parts and the number of steps. The invention according to claim 2 is the school bag according to claim 1, characterized in that the front plate is attached in a state of slightly protruding from the edge of the small goosewood. As a result, it is possible to avoid a situation in which the small goosewood is rubbed with something and a hole is opened due to abrasion. The invention according to claim 3 is the school bag according to claim 2, characterized in that at least a corner portion of the front plate is impregnated with a wear-resistant resin. This makes it possible to easily improve the wear resistance of the corner portion. This is the first realization of what was not possible with the conventional "sew back front plate and small goosewood" sewing method described above.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION The school bag of the present invention will be described in detail below with reference to the drawings. First,
An embodiment of the invention according to claim 1 will be described with reference to FIGS. In the school bag of the present invention, as shown in FIG. 1, the front body pocket portion 13 of the school bag body 1 is formed by sewing a front plate without edge-cutting and a small gore member attached to the front plate at a substantially right angle with outer stitches. It is characterized by

In the figure, reference numeral 1 is a school bag body, which is formed in a box shape having an upper surface opened by a back plate 2, left and right large gussets 3, 4, a large partition plate 5 and a bottom plate 6. The left and right large gussets 3 and 4 are integrally formed continuously on the left and right of the bottom plate 6, and the left and right large gussets 3 and 4 and the bottom plate 6 respectively have the left and right side edges and the bottom edge of the large partition plate 5 at their front edges. The left and right large gussets 3, 4 and the bottom plate 6 are overlapped with the left and right side edges and the bottom edge of the back plate 2 and overlapped with each other. The reinforcing piece 8 is in the form of a series of elongated tapes, which are sewn on the entire left and right large gussets 3 and 4 and the large partition plate 5 in an inverted U shape.

Thus, 9 is the inner surface of the school bag body 1,
It is a lining plate that is polymerized and adhered to the entire surfaces of the left and right large gussets 3 and 4 and the large partition plate 5. The lining plate 9 includes the large partition plate 5 and the sewn steps of the left and right large gussets 3 and 4, and the large partition plate 5 and the left and right large gussets 3 and 4.
The large partition plate 5 and the left and right large gussets 3, so as to cover the sewn steps of the reinforcing piece 8 having an inverted U-shaped cross section, which is sewn over the entire upper edge of
4 is attached to the accommodating portion 7 of the school bag body 1 so as to be substantially flush with the height of 4. Then, the left and right rear edges of the lining plate 9 are overlapped with the left and right side edges of the back plate 2, and further the rear edges of the left and right large gussets 3 and 4 are overlapped with each other, and the flat U-shaped mounting piece 10 is attached.
It is covered with and is sewn together. In this way, the school bag main body 1 in which the inner lining plate 9 is superposed on the entire inner surface is the seam between the large partition plate 5, the left and right large gussets 3, 4 and the bottom plate 6, and the tape-like reinforcing piece of the school bag body 1. All overlapping ends of the stitched portion 8 are hidden and formed into a flat surface as a whole, and are also hidden by the tack metal members protruding to the left and right large gussets 3 and 4. Therefore, when the textbooks, notebooks, etc. are taken in and out, the entire inner surface of the school bag body 1 has a clean finish without being caught in the stitched portion or the overlapping end portion. Further, in the school bag body 1, since the entire inner surfaces of the left and right large gussets 3 and 4 and the large partition plate 5 have a double structure by sticking the lining plate 9, the whole school bag body 1 is reinforced.

Numeral 13 is a front pocket of the body provided on the front surface of the large partition plate 5, and a small gusset material 17 composed of small gussets 14 and 15 and a bottom portion 16 and a front plate 20 allow the storage of a small capacity with its upper side opened. The section is partitioned and formed. Reference numeral 23 denotes a lid plate having a base end portion attached to the upper end edge of the back plate 2, and a latch plate 24 made of a magnetic material is attached to a free end portion of the lid plate. The latch plate 24 is made of a magnet provided on the bottom plate 6. The locking body 25 is made to be tacked. Two
Reference numeral 6 denotes a pair of backpack bands attached to the school bag body 1. FIG. 3 is an enlarged perspective view of corners on both sides of the lower side of the front waist pocket portion. A feature of the present invention is that a front plate and a small goosewood without edge cutting, which are attached to the front plate at a substantially right angle, are sewn on each other. According to the present invention, a small goosewood without edge-cutting is used at a site which is located on a side surface of a front pocket of a school bag and which is rubbed against and worn over a long period of time. As a result, there is an effect that it is possible to secure a thickness that does not allow holes to be opened due to wear in relation to the material. This is because the present invention sewes the front plate 20 and the small gusset material 17 by so-called "outer sewing", so that it is not necessary to use a small gusset material having a scoring as the conventional small gusset material. Is. In the illustrated preferred embodiment, as shown in FIG.
The front plate 20 is attached in a state of slightly protruding from the end edge of the small gore member 17. As a result, there is an effect that it is possible to avoid the situation where something is rubbed against the small goosewood and worn to open a hole. This is because the front plate covers the small goosewood and makes it difficult for the front plate to come into contact with objects. Furthermore, by impregnating at least the corner portion of the front plate with the abrasion resistant resin, the abrasion resistance at the corner portion can be improved. This is because the above-mentioned conventional "sew back front plate and small goosewood" sewing method could not be done,
It was realized for the first time.

[0009]

The school bag of the present invention according to claim 1 is
The front plate that does not have edge coverings that form the front torso pocket of the school bag body and the small goosewood that is attached at a right angle to this front plate are sewn together, so the corners due to edge scraping rub and wear. It can prevent breakage.

In the school bag of the second aspect of the present invention, since the front plate is attached in a state in which the front plate is slightly projected from the edge of the small goosewood, something is rubbed against the small goosewood and worn to form a hole. You can avoid the situation of opening. The school bag of the present invention according to claim 3 is
Since at least the corner portion of the front plate is impregnated with the abrasion resistant resin, the abrasion resistance at the corner portion can be further improved.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of a school bag according to the present invention.

FIG. 2 is a perspective view of the school bag seen from the bottom side of FIG.

3 is a perspective view of corners on both sides of a lower side of the front waist pocket portion of FIG. 1. FIG.

FIG. 4 is a cross-sectional view taken along a line that crosses a corner at an angle of 45 degrees in another embodiment of the school bag according to the present invention.

FIG. 5 is a perspective view of a conventional typical school bag.

6 (a) and 6 (b) are a perspective view of the upper body and a rear perspective view of the front plate, respectively, as seen from the inside of the front pocket of FIG.

[Explanation of symbols]

1 school bag body 2 backboard 3, 4 left and right large vine 5 large partitions 6 Bottom plate 7 accommodation 8 Reinforcement piece 9 lining board 10 mounting pieces 13 front pocket 14,15 Small 襠 16 bottom 17 Small goosewood 20 front plate 2 23 Lid plate 24 Hook plate 25 locks 26 shoulder straps

Claims (3)

[Claims] 1. A front plate constituting a front trunk pocket portion of a school bag body and a small goosewood without edge-cutting, which is attached to the front plate at substantially right angles, are sewn together, and thereby,
A school bag with a structure in which the corners on both lower sides of the front body pocket part of the school bag body are resistant to abrasion. 2. The school bag according to claim 1, wherein the front plate is attached in a state in which the front plate slightly protrudes from an edge of the small gore member, whereby something is rubbed against the small gore member and worn. A school bag that has a structure that can avoid the situation where holes are opened. 3. The school bag according to claim 2, wherein at least a corner portion of the front plate is impregnated with a wear resistant resin, thereby improving the wear resistance at the corner portion. A school bag that has been characterized.