JPS5920099Y2 - school bag - Google Patents

Description

[Detailed description of the invention] A conventional school bag consists of a main body, which is a box-shaped rigid body with only the upper surface open, consisting of front and rear walls, left and right walls, and a bottom wall; A front pocket is fixedly partitioned by the front wall of the main body, and the left and right side walls and the bottom wall extend from the bottom wall and the front edge in a bellows-like manner, and are fixedly separated from each other by the front wall of the main body. School supplies are stored separately in the main body and in the front pocket, with main binding, and if they do not fit into these, they are stored in the front pocket, but this front pocket is narrow and is not really useful. do not have.

By the way, school bags are generally used by elementary school students from 1st to 6th grade.
It is used throughout the six years up to the first grade, and the number of textbooks and notebooks that can be accommodated increases from the lower grades to the higher grades, so it is desirable to have a capacity that can be used even in the upper grades.

Therefore, it is possible to widen the storage thickness of the main body (the distance between the front and rear walls) of the conventional school bag described above, but if the main body itself is made larger, the whole school bag becomes larger and heavier, and the material cost is also high. There is a feeling of sadness.

Therefore, the present invention has a structure in which the main body does not have a front wall compared to the conventional school bag, that is, the empty space of the main body and the empty space of the front pocket, which form a rigid tetrahedron with an open top and front surface, are integrated and communicated. With this structure, even though the appearance and size of the main body of the school bag are the same as before, the storage capacity can be substantially increased by the capacity of the front pocket, so the storage capacity of the main body can be increased without the worries mentioned above. This is how it was done.

The present invention will be described in detail below with reference to embodiments shown in FIGS. 1 to 5.

The main body 1 of this school bag B has left and right side walls 2 that do not expand and contract.
A rear wall 4 that does not expand and contract like 3 and a bottom wall 5 that does not expand and contract like 3.
However, it is a rigid tetrahedron with an open top and front surface without a front wall, and its empty space 6 communicates integrally with the empty space of the front pocket 7 sewn on the front side of the main body 1. ing.

That is, the front pocket 7 is formed by integrally forming elastic bellows-shaped left and right side walls 12, 13 and a bottom wall with a relatively thick sheet made of leather or synthetic leather. A front plate 11 is sewn to the edge, and a partition plate 8 is sewn to the middle, and a front chamber 9 with only the upper surface open is formed between the front plate 11 and the partition plate 8, and the upper and rear surfaces are sewn to the rear side of the partition plate 8. A rear chamber 10 is formed with an opening, and the rear edge of the sheet of the front pocket 7 is connected to the left and right walls 2, 3 and bottom wall 5 of the main body 1.
It is sewn to the front end periphery of the main body 1 to integrally communicate the empty chamber 6 of the main body 1 and the rear chamber 10 of the front pocket 7.

There is a zipper 2 on the front of the front plate 11 of this front pocket 7.
A small pocket 26 that can be opened and closed at 5 is attached.

Therefore, since the empty chamber 6 of the main body 1 is integrally communicated with the rear chamber 10 of the front pocket 7, the storage capacity of the main body 1 is substantially increased by the storage capacity of the rear chamber 10. Although the size of the main body 1 is the same as the conventional one, its storage capacity is larger than that of the conventional one, and it can be used even in the business school year when there are many textbooks and the like.

By the way, when the storage capacity of the main body 1 increases in this way,
In the lower grades, there are fewer textbooks, etc., so there is a disadvantage that they are scattered around.

Therefore, this school bag B is equipped with a partition A so that the main body 1 can be used in two stages, wide and narrow. In this example, a partition A is removably loaded into the empty chamber 6, and the partition A will be described next.

The partition A is formed into a tetrahedron with an open top and rear surface by a front plate 14, left and right side plates 15, 16, and a bottom plate 17.

That is, as shown in FIG. 3 (developed view), the inner partition A is made by providing folding lines 27 to 29 on a piece of hard cardboard to connect the front plate 14, the left and right side plates 15, 16, and the bottom plate 17. In addition to integrally forming sections, folding lines 30 are provided at both left and right ends of the bottom plate 17.
．． 31 to partition left and right mounting pieces 32 and 33,
Fold the left and right side plates 15, 16 and bottom plate 17 along the lines 27 to 29.
The left and right mounting pieces 32 and 33 are respectively bent at right angles at the bottom and riveted to the lower ends of the left and right side plates 15 and 16, respectively.

And this partition body A is the front plate 14 and the left side.

Reinforcement bands 18 and 19 made of leather or synthetic leather are sewn to the upper edge of the right side plate 15 and 16, and to the rear edge of the bottom plate 17 and left and right side plates 15 and 16, respectively. An elongated reinforcing core plate 20 is interposed between the outer surface and the reinforcing band 18, and is engaged with the upper end outer surface of the left and right side plates 15 and 16 above the reinforcing band 18 and the lower surface (outer surface) of the bottom plate 17. As a method, so-called velvet fasteners (many small synthetic resin hooks planted on a thin substrate)21
．． 22.23 is attached.

On the other hand, on the main body 1 side, the above-mentioned velvet fastener 21 is attached to the inner surface of the upper end of the left and right side walls 2 and 3 as fastening means.
．． Velvet zipper corresponding to 22 (many synthetic resin loops provided on a thin substrate) 21', 2
2' is fastened thereto, and a bottom plate 24 is removably mounted on the bottom wall 5 to which a velvet fastener 23' corresponding to the velvet fastener 23 is also fastened as fastening means.

This attachment is carried out by inserting both left and right ends into sockets at both left and right ends of the lock fixing metal plate 24'.

Therefore, in order to load this partition A into the main body 1,
The left and right side plates 15, 16 and the rear edges of the bottom plate 17 are brought into contact with the inner surface of the rear wall 4, and inserted until the bottom plate 17 is overlapped with the bottom contact plate 24, and the velvet fasteners 21 to 23 are attached to the velvet fastener 21, respectively. ' to 23', and in this state, the partition A is prevented from being removed from the main body 1 and moving within it, and the front plate 14 is prevented from moving within the main body 1.
The front pocket 7 of the empty chamber 6 is partitioned from the rear chamber 10, and the left and right side plates 15, 16 and the bottom plate 17 are attached to the left and right side walls 2, 3 and the bottom wall 5 of the main body 1, respectively, and are connected from the inside. It is reinforcing.

In addition, as for the middle partition body, like the middle partition body A' shown in FIG. In addition to reinforcing the rear wall 4, extensions 15a and 16a are extended from the upper ends of the left and right side plates 15 and 16, and these are attached to the outside of the left and right walls 2 and 3 of the main body 1. It may be possible to prevent it from being removed from the main body 1 by bending it and fitting a snap 34' into a snap 34 provided on the outside thereof.

Further, the means for preventing the partitions A and A' from being removed from the main body 1 may be the above-mentioned velvet fastener snap slide fasteners, screws, hooks, etc. It is also possible to partially sew (bast-stitch) the inner partition to the main body 1 and undo the sewing when it becomes necessary to remove the partition from the main body 1.

It is clear from the above description that the main body 1 of the school bag of the present invention has no front wall and does not expand and contract like the left and right walls 2 and 3, which do not expand and contract, and the rear wall 4, which does not expand and contract. The front pocket 7, which is an auxiliary storage part, is made of a single sheet of leather or synthetic leather and has elastic bellows-like left and right sides. The walls 12, 13 and the bottom wall are integrally formed, and the front plate 11 is sewn to the front edge of the sheet, and the partition plate 8 is sewn in the middle, so that the upper surface is formed between the front plate 11 and the partition plate 8. A front chamber 9 with only one opening is formed, and a rear chamber 10 with an open top and rear side is formed on the rear side of the partition plate 8, and the rear edge of the sheet of the front pocket 7 is connected to the left and right side walls 2, 3
and is sewn to the front end periphery of the bottom wall 5 to integrally communicate the empty chamber 6 of the main body 1 and the rear chamber 10 of the front pocket 7.

Therefore, according to the school bag of the present invention, although the overall appearance and size of the school bag are the same as conventional ones, the storage capacity of the main body, which is the main storage part, is substantially reduced by the storage capacity of the rear compartment of the front pocket, which is the auxiliary storage part. In addition, by removably arranging the middle partition inside the main body, the main body can be separated from the rear chamber of the front pocket and used in the same way as before, and the storage capacity of the main body can be widened. It can be adjusted in two stages.

[Brief explanation of the drawing]

Figures 1 to 5 show an embodiment of the school bag of the present invention,
Figure 1 is a perspective view, Figure 2 is a perspective view of the inner partition and bottom plate loaded into the main body of this school bag, Figure 3 is a developed view of the inner partition, and Figure 4 is the inner partition. Figure 5 is a longitudinal cross-sectional view of the loaded state; Figure 5 is a cross-sectional view of the main body and front pocket;
The figure is a perspective view showing another example of the inner partition. 1...Main body, 2, 3, 4.5...Left, right side wall, rear wall of the main body. Bottom wall, 6... Empty room of main unit, 7... Front pocket, 12゜13... Left and right side walls of front pocket, 11, 8...・Front plate and partition plate of front pocket, 9, 10... Front and rear chamber of front pocket.

Claims (1)

[Scope of utility model registration request] The main body 1, which is the main housing part, has a rigid tetrahedron with an open top and front surface, consisting of left and right side walls 2 and 3 that do not expand and contract without a front wall, a rear wall 4 that also does not expand and contract, and a bottom wall 5 that also does not expand and contract. None, and the front pocket 7, which is an auxiliary storage part, is made of a sheet of leather or synthetic leather, etc., and is made of elastic bellows-shaped left and right side walls 12, 13 and a bottom wall, which are integrally formed. The front panel 11 is sewn to the front edge of the front panel, and the partition plate 8 is sewn in the middle of the front chamber 9 with only the top open between the front panel 11 and the partition plate 8, and the rear side of the partition plate 8 is sewn. A rear chamber 10 with open top and rear surfaces is formed, and the rear edge of the sheet of the front pocket 7 is sewn to the front end periphery of the left and right side walls 2.3 and bottom wall 5 of the main body 1. This school bag is characterized in that the empty chamber 6 of the front pocket 7 and the rear chamber 10 of the front pocket 7 are integrally communicated with each other.