JPS5832674Y2 - school bag - Google Patents

Description

[Detailed description of the invention] This invention uses a front plate and a back plate to form the front and rear walls of the box-shaped main body, and a U-shaped oblong plate (so-called gusset) to form the bottom wall and left and right side walls of the main body. More specifically, the lower side and left and right sides of the front plate bent to the rear side are sewn to the inside of the front side of a horizontally long plate bent into a U shape, and the horizontally long plate is This invention relates to an improvement of a school bag in which the rear side of the plate is sewn to the lower side and left and right sides of the back plate.

In other words, in the past, the sewing thread that sewed the left and right sides bent to the rear of the front plate to the inside of the front side of the oblong plate was
The stitching threads protrude exposed on the left and right sides of the front plate, and therefore on the inner surfaces of the left and right side walls of the main body, and the sewing threads had the disadvantage of getting caught and worn out by objects entering and exiting the main body, but the present invention has the following features: A part of the sheet that is interposed between the front side of the oblong plate and the front plate and sewn thereon is folded back and pasted on the left and right sides of the front plate, thereby covering the sewing threads with the sheet. , thereby solving the above drawbacks.

Furthermore, the present invention covers the edges of the left and right sides of the front plate by folding and pasting the sheet as described above, so that there is no possibility that stored items will get caught on the edges and turn over. This is how it was done.

The illustrated embodiments of the invention will now be described in detail.

As shown in FIG. 1, this school bag has a front side of a horizontally long plate 1 bent into a U shape, a lower side and left and right sides bent toward the rear of the front plate 2, and an expandable and retractable front pocket 3. After sewing the flexible bellows-shaped leather peripheral wall sheet 4 to the rear periphery, the rear side of the oblong plate 1 is sewn to the lower side and left and right sides of the front of the back plate 5, and then the back plate A cover plate 6 is sewn to the upper side of the rear surface of the main body 5, and the horizontally long plate 1, front plate 2, and back plate 5 together form a box-shaped main body 7.

As shown in FIGS. 2 to 4, the horizontally long board 1 itself consists of the outer surface (lower surface in FIG. 4) of a cardboard core board 8, and a leather exterior sheet 9 that is slightly longer and slightly wider than this. (top surface in the figure) and their rear edges 80, 9.
□ are aligned, and a strip-shaped reinforcing plate 10.10 that also serves as a decorative core and left and right reinforcing pieces 11.11 are interposed between them, and the reinforcing plates 10.10 and reinforcement are bonded together with adhesive. To secure the pieces 11.11, the outer sheet 9 and the core plate 8 are sewn with threads 12... and 13.
13, and in order to fix the horizontal pocket 14 to the outer surface (lower surface in the figure) of the outer sheet 9, the outer sheet 9 and the core plate 8 are sewn together with sewing thread 15 along the periphery of the horizontal pocket 14. The front edge 92 and left and right edges 93 and 93 of the exterior sheet 9, which extend by the required width from the front edge and left and right edges of the core plate 8, are folded back and placed on the core plate 8. In addition to attaching them with adhesive, the left and right ends 9s and 9a of the outer sheet 9, the core plate 8, and the outer sheet 9 are sewn together with sewing threads 16 and 16 in order to fix the left and right reinforcing pieces 11 and 11, respectively. In addition, cutout windows 17 and holes 18 and 18 for attaching known lid fixing fittings (not shown) are formed in the center of the exterior sheet 9 and core plate 8, which are bonded by polymerization, and rivets are provided in the left and right sides. Hole 19 for penetration...
... was established.

Therefore, the horizontally long plate 1 configured in this way is bent at the two intermediate folds 20 and 20 to form a U shape,
On the front side, the left and right sides of the front plate 2 and the front pocket 3
After simultaneously sewing the rear peripheral part of the peripheral wall sheet 4, the rear part 94 of the outer sheet 9 and the rear part 8□ of the core plate 8 are sewn to the back plate 5 while remaining overlapped. It is.

That is, the U-shaped rear periphery of the peripheral wall sheet 4 of the front pocket 3 is placed on the inside of the front side of the U-shaped oblong plate 1, and further inside this rear periphery, on the rear side of the front plate 2. Bent bottom part 2
□ and the left and right sides 2□, 2□ are positioned, and the folded front side 9° of the exterior sheet 9 of the oblong board 1, the rear periphery of the peripheral wall sheet 4, the lower side 2□ of the front plate 2, and the left and right sides 22,2□ and
The rear side 41 of the peripheral wall sheet 4 extends from the edge of the lower side 2 of the front plate 2 and the edges of the left and right sides 22, 2□, and is superimposed and bonded with adhesive, and these horizontally long After sewing the front side of the plate 1, the rear circumference of the peripheral wall sheet 4, the lower side 21 of the front plate 2, and the left and right sides 2□, 2□ with sewing thread 21, the peripheral wall is extended as described above. The rear side 4□ of the seat 4 is folded back and the lower side 2□ and left and right sides 22, 2 of the front plate 2 are folded back.
□It is pasted on top with adhesive.

Next, the rear side part 94 of the exterior sheet 9 of the horizontally long board 1 and the core board 8
Both the rear sides 8 □ are bent outward, and these rear sides 94 and 82 are overlapped with the lower side and the left and right sides of the front of the back plate 5 and attached to the sewing thread 23 together with the leather band-shaped covering sheet 22. It is sewn to the back plate 5.

Note that the rear side portions 94, 8□, the back plate 5, and the covering sheet 22 are further bonded.

In this way, the middle part between the folds 20 and 20 of the oblong plate 1 forms the bottom wall, the left and right side parts thereof form the left and right side walls, and the front plate 2 forms the front wall that also serves as a partition between it and the front pocket 3, and the back A main body 7 is formed with the plate 5 forming the rear wall, and the inner surfaces of the left and right side walls and the bottom wall of the main body 7 are connected to the lower side 2 of the front plate 2 and the sewing threads 21 on the left and right sides 2□, 2□. Since the threads are covered and hidden by the rear side 41 of the peripheral wall sheet 4, there is no possibility that the sewing threads are exposed and protrude and get caught and worn out when the stored items come in and out, unlike in the conventional case.

In addition, the edges of the lower side 2□ and left and right sides 2□, 22 of the front plate 2 are also covered by the rear side 4 of the peripheral wall sheet 4, so that the storage bow 1 can be hung there and turned over. Not really.

Further, in the horizontally long plate 1, the rear side 94 of the exterior sheet 9 and the rear side 82 of the core plate 8 are sewn together to the back plate 5 while superimposing them. Extend the chisel from the rear edge 8□ of the core plate 8 and use it as a seam allowance,
As in the case where the seam allowance is sewn to the back plate 5, the horizontally long plate 1
may easily swing from side to side with respect to the back plate 5, and the rear edge 94 of the outer sheet 9 may be cut off, or the rear edge 8□ of the core plate 8 may
There is no chance that it will come into contact with the paper and be turned over.

In the above embodiment, the rear side 4□ of the peripheral wall sheet 4 of the front pocket 3 is folded back and attached onto the lower side 2□ and the left and right sides 22, 2□ of the front plate 2, so that the sewing thread can be easily attached. 21, but as shown in FIG. The rear side 4□ of 4, the lower side 2□ of the front plate 2, and the left and right sides 22
, 2□ and bonded with adhesive, and sewing thread 2
After stitching in step 1, the rear side 24 of this belt-shaped sheet 24 is
Fold back □ to obtain the lower side 2 of the front plate 2, and the left and right sides 2□,
The same effect as in the above embodiment can be obtained even if the sewing thread 21 is covered and hidden by the rear side 24□ of the belt-shaped sheet 24 by pasting it on the 2□ with an adhesive.

In addition, in both the embodiments shown in FIGS. 1 to 4 and the embodiment shown in FIG. Alternatively, the rear side 24□ of the strip sheet 24 is pasted, but in the case of a school bag in which a separate bottom plate is installed on the bottom wall of the main body 7, the front side of the bottom plate is attached. Since the upper part of the lower side 2□ of the plate 2 is protected, it is not necessarily necessary to cover the sewing thread 21 on the lower side 2□ as described above. The rear side 4 of the peripheral wall sheet 4 or the rear side 24 of the strip sheet 24 is attached only to the left and right sides 2□, 2□.
All you have to do is paste □.

Note that reference numeral 25 in the figure indicates reinforcing metal fittings fitted and fixed to protect the left and right lower end corners of the back plate 5.

As is clear from the above description, according to the school bag of the present invention, a part of the sheet interposed between the front side of the oblong plate and the front plate and sewn thereto is folded back to form the left and right sides of the front plate. Since it is attached to the top, the sewing threads do not protrude exposed on the left and right sides of the front plate as in the past, and they do not get caught and worn out when items are moved in and out of the main body.
Furthermore, since the edges of the left and right sides of the front plate are also covered by the sheets 1 to 1, there is no possibility that the stored items will be caught there and turned over.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, in which Fig. 1 is a perspective view, Fig. 2 is an enlarged partial end view taken along line I--I in Fig. 1, and Fig.
The drawings are an enlarged partial cross-sectional view taken along the same <II-II line, FIG. 4 is a partially omitted developed plan view of a horizontally long plate, and FIG. 5 is a cross-sectional view of main parts showing another embodiment. 1...Horizontal board, 2...Front board, 2□, 2
□・・・Lower part and left and right sides of the front plate, 5...
... Back plate, 4 ... Peripheral wall sheet, 24 ...
・Band-shaped sheet.

Claims (1)

[Scope of utility model registration request] At the same time, sew the lower side and left and right sides bent to the rear side of the front board to the inside of the front side of the oblong board bent into a U shape, and attach the rear side of the oblong board to the lower side of the back board. And in a school bag that is sewn to the left and right sides to form a box-shaped main body, a sheet is interposed between the front side of the oblong plate and the front plate, and the left and right sides and the bottom side of the front plate are sewn. is sewn to the front side of the oblong plate, a part of the sheet is extended into the box-shaped main body from at least the left and right edges of the front plate, and the extended part is folded back to form the left and right sides of the front plate. A school bag that is characterized by being attached to the top.