JP2535613Y2 - school bag - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to improvement of a school bag.

[0002]

2. Description of the Related Art In a conventional school bag, a bottom plate and both sides are formed into a substantially U-shaped gore member. The front side of the gore member has the bottom and both sides of the front plate, and the rear side has the bottom and both sides of a back plate. The stitching at the front side of the gore member and the stitching allowance at the bottom and both sides of the front plate are both folded inward and stitched together at the time of stitching. The side seam is bent outward and stitched to the edge of the backboard.

[0003] The gore member is generally constructed by superimposing a front fabric, a reinforcing core material and a backing fabric, and superimposing the backing fabric on the front plate.

[0004]

However, since the above-mentioned conventional school bag is required to have durability, a thick cloth is used for the cloth, and a reinforcing core is inserted in a proper place. There is a problem in that ordinary suturing operations such as suturing and turning over can not be performed, and sewing requires skill and much trouble.

The gore member M described above is usually provided with a reinforcing core, since the gore portion loses its shape due to long-term use and the appearance is deteriorated. Conventionally, a cardboard, a synthetic resin plate, Various types of materials such as metal plates and piano wires have been tried, but no satisfactory products have been provided, and there is a problem that the number of steps for fixing the core material in a predetermined place is considerably complicated. ing.

Further, in the conventional school bag, the seam allowance of the front side of the gore member and the seam allowance of the bottom side and both sides of the front plate are both bent inward and sewn. Therefore, when the cover of the school bag is opened, this seam allowance is obtained. However, it has also been pointed out that the appearance is poor.

The present invention has been made to solve the above-mentioned problem, and has as its object to provide a school bag which is easy to manufacture, prevents shape loss, and has an improved internal appearance. Things.

[0008]

In order to solve the above-mentioned problems, the construction of the present invention, which is based on the claims of the present invention, has been proposed in order to solve the above-mentioned problems. Reinforcement ridges 16 are provided in a grid on the inner surface of the bottom plate 11, and side plates 12, 12 extending perpendicularly above the bottom plate 11 are provided on both sides of the bottom plate 11. An upper portion is provided with a thick portion 17 extending over substantially the entire width, and a flange edge portion 13 which is bent outward is connected to a rear side portion of the bottom plate portion 11 and both side plate portions 12 and 12. 11
A front side portion of the first and second side plate portions 12 and 12 forms a concave portion 14 depressed inward at a predetermined width, and a front plate portion 15 is connected to the front side portion of the concave portion 14 to be integrally formed. Lining 10
Formed on the outer surface of the lining body 10, a seam allowance portion 21 a in which the bottom side and both sides of the front plate outer fabric 21 are bent inward,
A main storage portion constituting surface fabric 20 in which a seam allowance portion 22a formed by bending a front side of a gore surface fabric 22 formed of a bottom plate surface fabric portion 22A and both side plate surface fabric portions 22B and 22B inward is sewn inward.
The seam allowances 21a and 22a are positioned on the outer surface of the concave surface portion 14 of the lining 10, and the bottom edge and both sides of the back plate 30 are attached to the flange edge 13 of the lining 10. And technical means by sewing.

[0009]

Therefore, the school bag according to the present invention has the function of covering the inner surfaces of the front plate, both side plates and the bottom plate with the integrally formed inner lining body 20.

Further, since the lining 10 is made of a flexible synthetic resin material, the lining 10 has the function of reinforcing and retaining the shape.

Further, the present invention provides the lining 10 with a concave portion 14.
Is formed, the concave surface portion 14 is
Seam allowance portion 21a in which the bottom side and both side sides of 1 are bent inward
And a seam allowance portion 22a formed by bending the front side of the gore fabric 22 inward without swelling to the outer surface side of the school bag.
3, the flange edge 13 is attached to the back plate 30.
In this case, the stitching with the back plate 30 is strengthened.

Further, since the lining 10 is integrally formed of a synthetic resin, the reinforcing ridge 16 and the thick portion 17 can also be integrally formed, so that the number of parts can be reduced.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail with reference to the accompanying drawings. In the figure, B is the school bag of the present invention. The appearance of the school bag B of the present invention is not different from the conventional one as shown in FIG.
It has an inner lining 10 as shown in FIG. 2 to FIG.

The lining member 10 is provided with reinforcing ridges 16 in a lattice shape on the inner surface side of a bottom plate 11 made of a flexible synthetic resin material, and on both sides of the bottom plate 11 at a right angle above the bottom plate 11. The extended side plate portions 12 are provided, and the side plate portions 12 are provided.
A thick portion 17 extending over substantially the entire width is provided at the upper portion on the outer surface side, and a flange edge portion 13 that bends outward is connected to the rear side portion of the bottom plate portion 11 and the side plate portions 12, 12. The front side portions of the bottom plate portion 11 and the both side plate portions 12 and 12 form a concave surface portion 14 which is depressed inward with a predetermined width.
A front plate portion 15 is connected to the front side portion and integrally molded.

That is, the liner 10 is formed in a box shape in which the upper surface and the rear surface are omitted. Various materials can be used as the flexible synthetic resin material, but it is desirable that the material has such a softness that a hole can be formed with a sewing needle in order to sew the material together with the outer fabric in the sewing process.

The concave portion 14 is for accommodating a seam allowance (21a, 22a) described later on its outer surface, and its depth is selected according to the thickness of the cloth to be used.

Further, it is not necessary to form the inner lining 10 to have a uniform thickness as a whole, and a reinforcing portion may be provided in an appropriate place, and the present invention provides a grid-like structure on the inner surface of the bottom portion 11. A reinforcing ridge 16 is provided. Although not shown in the drawing, a connecting ring for connecting one end of the lower straps 41 and 42 is attached to the bottom surface of the school bag, and the free end of the cover 50 (the free end of the cover 50 has Connection piece 51
, A one-side locking piece called "sagari" is attached. ) Is attached with a bottom bracket that detachably locks the
A part of the reinforcing ridge 16 is omitted to provide the flat portions 16a, 16a shown in FIG.
The bottom washer is used to store the washer for attaching the tack. In addition, when attaching the bottom fitting, an iron plate may be stacked on the inner surface or the outer surface of the bottom portion 11, and the iron plate may be used as a washer. In particular, when the iron plate is stacked on the inner surface of the bottom portion 11, the flat portion 1 of the iron plate may be used.
It is preferable that the portion corresponding to 6a, 16a be a concave surface so that the rivet head or the rivet foot does not protrude above the reinforcing ridge 16 (more precisely, the upper surface of the iron plate).

Further, in the present invention, a thick portion 17 covering almost the entire width is provided at the upper portion of the outer surface of both side plate portions 12 and 12. The thick portion 17 is adapted so that the upper portion of the side plate portion 12 conforms to the opening of the school bag, and is easily bent when subjected to a force such that the opening is crushed (the lower portion is difficult to bend because it has the bottom portion 11).
Therefore, it is used to increase rigidity and prevent shape collapse.

Further, in the illustrated example, both side plate portions 12, 12 are provided.
Of the partition plate (not shown),
8... Are provided. The insertion groove 18 may be provided on the inner surface of the side plate portion 12 in the vertical direction.
2 is provided from the upper end to the lower end, the side plate portion 12 is easily bent. Therefore, as shown most clearly in FIG. 3 and FIG. Are juxtaposed, and the insertion groove 1 is formed in the gap between the adjacent projections 18a, 18a.
8.

In the present invention, a seam allowance 21a in which the bottom side and both sides of the front plate outer fabric 21 are bent inward, a bottom plate outer fabric portion 22A, and both side plate outer fabric portions 22B are provided on the outer surface of the lining 10. , 22B, the main storage section constituting table cloth 20 sewn together with the seam allowance 22a formed by bending the front side of the gore cloth 22 inward, and the seam allowances 21a, 22a are replaced with the concave surface of the liner 10. 14 and located on the outer surface.

The main fabric 20 constituting the main storage portion is the same as the conventional one except that it does not have the backing material and the reinforcing core material. Needless to say, the sewing method may be the same as the conventional one. In addition, the front plate surface cloth 2
Generally, a seam allowance 61 (see FIG. 5) of an expansion / contraction pocket 60 (refer to FIG. 1) called a former stage is sandwiched and stitched at a seam between the first fabric 1 and the gore fabric 22.

In order to apply the main storage portion constituting surface cloth 20 to the outer surface of the lining 10, a conventional method such as gluing, gluing, tacking, or the like can be used. In this embodiment, the whole is glued, Stitched in place.

The main storage section structure table cloth 20 and the liner 10
The main part of the suturing portion is the upper ends of both side plate portions 12 and 12 and the upper end portion of the front plate portion 15. In this portion, the main storage unit constituting surface cloth 20 and the lining body 10 are two pieces. It has an edge. Therefore, this edge portion has a reverse U-shaped cross-sectioned fabric 70.
Cover with. With this edging cloth 70, the storage section configuration table cloth 2
0 is sewn to the upper edge of the lining 10 with a sewing thread 23. In this embodiment, a sewn portion indicated by reference numeral 71 in FIG. 1 is provided as another sewn portion. The stitching portion 71 stitches the storage portion constituting surface fabric 20 and the lining 10 along the lower side of the thick portion 17.
The main purpose of the stitching portion 71 is to use it for decoration called so-called kazari sewing machine, and it is a matter of course that such a stitching portion 71 for decoration may be appropriately provided in other portions.

Further, in the present invention, the bottom side and both sides of the back plate 30 are sewn to the flange edge 13 of the lining 10.

As the back plate 30, a conventionally known one can be used, and a backing material is attached to the outer surface of a substrate 31 via a cushion material 32. In order to sew the bottom side and both sides of the backboard 30 to the flange edge 13 of the lining body 10, as shown in FIG. 5, the edge is trimmed with the trimming cloth 34 and the sewing thread 35 is used together with the trimming cloth 34. Just suturing. The gore cloth 22 is preferably extended to the outer surface side of the flange edge 13 to give a finished appearance. In this case, the fringe cloth 34 is also sewn while sandwiching the edge of the gore cloth 22. become.

The rest of the structure is the same as that of the conventional school bag. The base end of the cover 50 is sewn to the upper end of the back plate 30, and the back strap 44 is attached to the upper center of the outer surface of the back plate 30. , 45 are connected at one end, and the shoulder straps 44, 4
The free end of 5 is connected to the lower straps 42 and 43 carried on the back via a buckle 45 so that the locking position can be adjusted.
In the drawing, reference numeral 46 denotes a hanging bracket, and 47 denotes an expansion / contraction pocket 6.
It shows a tightening belt of zero.

[0027]

Since the present invention is as described above, the front inner surface, both inner surfaces and the bottom inner surface of the main storage portion of the school bag can be covered with the seamless liner 10 to provide a school bag with good appearance. It is something you can do.

And, the lining 10 used in the present invention
The strength and rigidity can be appropriately set depending on the material, thickness, and the like, and have a remarkable effect on improving durability and shape retention. In addition, in the present invention, since the reinforcing ridge 16 and the thick portion 17 are provided, the reinforcement. The shape retaining effect is large, and in particular, the thick portion 17 at the upper part of the side plate portion 12 enables reinforcement that can prevent the opening portion of the school bag from being crushed without increasing the number of parts.

In particular, since the lining 10 is integrally formed, the bottom plate 11, the side plates 12, 12, the flange edge 1
3, since the respective continuous portions of the concave portion 14 and the front plate portion 15 are continuous, it is unlikely that this portion is torn apart in normal use. Thus, it is possible to provide a school bag that has a box-like shape reliably secured, has a good shape-retaining property, and can significantly prevent shape collapse.

Further, a remarkable effect of the present invention is that the main fabric constituting the main storage portion 20 can be prepared separately from the liner 10, so that the sewing is very easy. In other words, since the flexible outer fabric is not sewn with the reinforcing core material as in the conventional case, the fabric is relatively easy to bend at the time of suturing. It is possible to provide a school bag that can simplify the process.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a rear view of the lining used in the present invention.

FIG. 3 is a side view of the lining used in the present invention.

FIG. 4 is a plan view of the lining used in the present invention.

FIG. 5 is a cross-sectional view of a main part.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Inner body 11 Bottom board part 12 Side board part 13 Flange edge part 14 Concave surface part 15 Front board part 21 Front board surface cloth 21a Seam allowance part 22 Gore surface cloth 22A Bottom board surface cloth part 22B Side plate surface cloth part 22a Seam allowance part 30 Backboard

Claims (1)

(57) [Scope of request for utility model registration] 1. A reinforcing ridge (16) is provided in the form of a lattice on the inner surface side of a bottom plate (11) made of a flexible synthetic resin material, and the bottom plate (11) is provided on both sides of the bottom plate (11). Side plate portions (12, 12) extending upward at right angles are provided, and the side plate portions (1 and 12) are provided.
In the upper part on the outer surface side of (2, 12), a thick portion (1) covering almost the entire width is provided.
7), the bottom plate portion (11) and both side plate portions (12, 1).
2) is connected to an outwardly bent flange edge (13), and the front side of the bottom plate (11) and both side plates (12, 12) has a predetermined width. A concave portion (14) which is depressed inward is formed, and a lining body (10) integrally formed by connecting a front plate portion (15) to the front side of the concave portion (14) is formed. A seam allowance (21a) in which the bottom side and both sides of the front fabric (21) are bent inward on the outer surface of the inner lining (10).
And the bottom plate outer fabric portion (22A) and both side plate outer fabric portions (22A)
B, 22B), and a main storage portion constituting table cloth (20) sewn together with a seam margin (22a) formed by bending the front side of the gore cloth (22) inward.
22a) is positioned on the outer surface of the concave portion (14) of the lining (10), and is attached thereto. Further, the backing plate (30) is attached to the flange edge (13) of the lining (10). A school bag with the bottom and both sides sewn together.