Auxiliary bag for schoolbag

Abstract

To provide an auxiliary bag for a backpack that makes it extremely easy to attach and detach the auxiliary bag to and from the backpack. 【Solution means】 It consists of a bag body 3 made of a bag, a triangular belt portion 5 connected and fixed to the upper part of the bag body, and a fastening belt 7 made of a long belt connected and fixed to the belt portion. The belt portion is formed in an isosceles triangle shape, the bottom portion is fixed to the bag body, and a pair of male and female fasteners provided at both ends of the fastening belt are attached to the surface on the bag body side. The width length l3 of the bottom portion is substantially the same as the width length h of the upper part of the bag body. The bag body of the auxiliary bag 1 and the fastening belt fixed to the backpack 13 are connected by the belt portion, and since the belt portion is formed in a triangular shape, the contact area between the auxiliary bag and the backpack becomes large, so it is possible to suppress the swaying, turning up and down of the auxiliary bag caused by the vibration during walking, and the attachment to the backpack becomes stable. Also, the swaying of the auxiliary bag does not become unbalanced.

Description

Technical Field

[0001] The present invention relates to an auxiliary bag for a schoolbag that can be detachably attached to a schoolbag.

Background Art

[0002] Many of the conventional auxiliary bags of this type were time-consuming to attach to and detach from a schoolbag. For example, one product required three steps: fixing the auxiliary bag to a lid called a "cover" of the schoolbag by a back belt, then passing the belt through a hanging ring of the schoolbag, and further fixing it firmly with a buckle as a fastener. Another product required three steps: passing the flat rubber and mesh pocket of the cover of the auxiliary bag through the cover of the schoolbag, then passing the handle and shoulder belt of the schoolbag through a loop of the cover, fastening a snap button, and further hooking and tying a string to the hanging ring or the base of the shoulder belt for fixing.

[0003] When it was so time-consuming to attach and detach the auxiliary bag, it became troublesome to remove it even when there was little luggage, and there were cases where it was used in a state of leaving the auxiliary bag unattached.

[0004] In such a case, since the body is small in the case of elementary school students, etc., the schoolbag shakes due to the vibration during walking to and from school, and the auxiliary bag resonates with this shake, and the shake may become large. In such a case, there was a risk that elementary school student users would lose their walking balance.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] In view of the above background, an object of the present invention is to provide an auxiliary bag for a schoolbag that makes it extremely easy to attach and detach the auxiliary bag to and from the schoolbag.

[0007] Also, since even a child can attach and detach the auxiliary bag to and from the schoolbag extremely easily, when the auxiliary bag is not needed, it can be removed from the schoolbag to lighten the schoolbag for use.

Means for Solving the Problems

[0008] To solve the above problems, the auxiliary bag for a schoolbag according to the present invention is an auxiliary bag attached to a schoolbag, and includes a bag body made of a bag, a triangular belt portion connected and fixed to the upper portion of the bag body, and a fastener belt composed of a long belt connected and fixed to the belt portion. The belt portion is formed in an isosceles triangle shape, the bottom portion is fixed to the bag body, and a pair of male and female fasteners provided at both ends of the fastener belt are attached to the surface on the bag body side. Further, the auxiliary bag for a schoolbag according to claim 2 is the auxiliary bag for a schoolbag according to claim 1, characterized in that the width of the bottom portion is substantially the same as the width of the upper portion of the bag body. Further, the auxiliary bag for a schoolbag according to claim 3 is the auxiliary bag for a schoolbag according to any one of claims 1 to 2, characterized in that the belt portion is formed in an equilateral triangle shape. Further, the auxiliary bag for a schoolbag according to claim 4 is the auxiliary bag for a schoolbag according to claim 1, characterized in that an attachment belt inserted into the lid of the schoolbag is provided on the back surface of the bag body. Further, the auxiliary bag for a schoolbag according to claim 5 is the auxiliary bag for a schoolbag according to claim 1, characterized in that a pocket is provided on the bag body.

Effects of the Invention

[0009] The bag body of the auxiliary bag and the fastener belt fixed to the schoolbag are connected by a belt portion, and the belt portion is formed in a triangular shape. Therefore, since the contact area between the auxiliary bag and the schoolbag becomes large, it is possible to suppress the swaying, turning over, and flapping of the auxiliary bag caused by the vibration during walking to and from school. As a result, the attachment of the auxiliary bag to the schoolbag becomes stable. In addition, since the belt portion is formed in an isosceles triangle shape and is arranged evenly on the left and right, the swaying of the auxiliary bag due to the vibration during walking does not become unbalanced, and it is easier to achieve balance during use from this aspect as well.

[0010] The attachment and detachment of the auxiliary bag can be made easy by attaching / detaching the fastener belt. Therefore, since even a child can easily attach and remove the auxiliary bag, when the auxiliary bag is not needed, it can be removed and the schoolbag can be carried to and from school in a lighter state.

Brief Description of the Drawings

[0011]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Best Mode for Carrying Out the Invention

[0012] Next, based on the drawings showing the embodiments, the auxiliary bag for a schoolbag according to the present invention will be described in more detail. For convenience, parts having the same function are denoted by the same reference numerals and their descriptions are omitted.

[0013] The auxiliary bag 1 for a schoolbag is composed of a bag body 3 made of a resin bag, an isosceles triangular resin strip 5 stitched to the upper part of the bag body 3, and a fastener belt 7 made of a long resin belt stitched to the strip 5. The strip 5 is formed in an isosceles triangle shape, and the bottom part 5c is stitched to the bag body 3. The bag body 3 is formed in a slightly tapered shape so as to become narrower from the lower part to the upper part.

[0014] On the upper back side of the bag body 3, a retaining ring 8 for hanging on a hook (not shown) when the bag is not in use is provided. 10 is a rubber belt into which a cover 15, which is a lid, is inserted when attaching to the schoolbag 13.

[0015] At both ends of the fastener belt 7, a male and female pair of fasteners 11, 12 are fixed to the surface on the side of the bag body 3. 4 is a pocket attached to the bag body 3 so as to be openable and closable, and 6 is a border attached to the edge parts of the bag body 3 and the strip 5.

[0016] The dimensions of each part of the auxiliary bag shown here are as follows. The length l1 between the vertices ab of the hypotenuse part 5a of the strip 5 = the length l2 between the vertices ac of the hypotenuse part 5b of the strip 5 = 220 mm The length l3 between the vertices bc of the bottom part 5c of the strip 5 = 255 mm The total length d of the fastener belt 7 = 190 mm The length e from the top part of the fastener belt 7 to the bottom part of the strip 5 = 240 mm The height f of the bag body 3 = 320 mm The width g of the lower part of the bag body 3 = 290 mm The width h of the upper part of the bag body 3 = 265 mm The depth i of the bag body 3 = 70 mm The length l3 of the bottom part 5c of the strip 5 is approximately equal to the width h of the upper part of the bag body 3.

[0017] Next, the method of attaching the auxiliary bag 1 for a schoolbag to the schoolbag 13 will be described. First, with the bag body 3 placed on the cover 15, open the cover 15 and insert it into the belt 10 provided on the back side of the bag body 3 (Fig. 4(A)). This is the first mounting step. In this operation, since the moving distance for inserting the cover 15 into the belt 10 is as short as about 10 cm in this embodiment, it can be mounted and removed quickly and easily compared to the case where the insertion moving distance is long as in the prior art. In Fig. 4(A), the cover 15 is shown in a tilted state, so the bag body 3 is shown below and the cover 15 is shown above.

[0018] Next, insert the fastener belt 7 into the hanging ring 17 of the backpack 13, wind it back, and press and attach the male and female fasteners 11 and 12 at both ends. This is the operation of the second mounting step. Thereby, the attachment of the auxiliary bag 1 for the backpack to the backpack 13 is completed (Fig. 4(C), Fig. 4(D)).

[0019] Removal is the reverse operation of the above. First, peel off the fasteners 11 and 12, and then remove the cover 15 from the belt 10 to complete the removal.

[0020] As described above, according to the above embodiment, the attachment / detachment of the auxiliary bag 1 for the backpack to the backpack 13 is completed by an extremely simple and quick operation, so that even a child can easily attach and detach the auxiliary bag. Therefore, even a child can remove the auxiliary bag 1 without being bothered when it is not needed and can go to and from school with a lightweight backpack.

[0021] The bag body 3 of the auxiliary bag 1 and the fastener belt 7 fixed to the backpack 13 are connected by a belt portion 5, and the belt portion 5 is formed in a triangular shape. Therefore, since the contact area between the auxiliary bag 1 and the backpack 13 becomes large, it is possible to suppress the swaying and turning over of the auxiliary bag 1 caused by the vibration during walking to and from school. Thereby, the attachment of the auxiliary bag 1 to the backpack 13 becomes stable.

[0022] In addition, since the belt portion 5 is formed in an isosceles triangle shape and is arranged evenly on the left and right, the swaying of the auxiliary bag 1 due to vibration during walking is not unbalanced, and it is easier to achieve balance during use from this aspect.

[0023] Furthermore, the attachment and detachment of the auxiliary bag 1 can be made easy by attaching / detaching the fastener belt 7. Therefore, even a child can easily attach and remove the auxiliary bag 1. When the auxiliary bag 1 is not needed, it can be removed and the child can go to and from school with a light backpack.

[0024] The present invention is not limited to the above-described embodiments. For example, the belt portion 5 may be formed in an equilateral triangle shape. Also in this case, since the contact area with the surface of the backpack increases compared to a linear belt, the object of the present invention can be achieved. Even when there is no pocket 4, similarly, the contact area with the surface of the backpack increases, so the object of the present invention can be achieved. Regarding the bag body 3 having the same width from the upper part to the lower part, similarly, the contact area with the surface of the backpack increases, so the object of the present invention can be achieved. Also, the edge trim 6 attached to the edge portions of the bag body 3 and the belt portion 5 may not be provided. The materials of each part such as the bag body 3, the belt portion 5, and the fastener belt 7 are arbitrary.

[0025] Furthermore, the method of attaching the auxiliary bag 1 for the backpack to the backpack 13 is not limited to the method described above. For example, as shown in FIG. 5, the fastener belt 7 may be detachably attached to the handle 18 of the backpack 13.

Industrial Applicability

[0026] The present invention can be utilized as an auxiliary bag for a backpack.

Explanation of Reference Numerals

[0027] 1 Auxiliary bag for backpack 3 Bag body 4 Pocket 5 Belt portion 5a Hypotenuse part 5b Hypotenuse part 5c Base part 6 Edge trim 7 Fastener belt 8 Retaining ring 10 Belt 11 Fastener (male type) 12 Fastener (female type) 13 Backpack 15 Cover 17 Suspension loop 18 Handle

Claims

1. In an auxiliary bag attached to a schoolbag, it comprises a bag body made of a bag-shaped object, a triangular belt portion connected and fixed to the upper part of the bag body, and a fastening belt composed of a long belt connected and fixed to the belt portion. The belt portion is formed in an isosceles triangle shape, the bottom portion is fixed to the bag body, and a pair of male and female fasteners provided at both ends of the fastening belt are attached to the surface on the bag body side. An auxiliary bag for a schoolbag characterized by this.

2. In the auxiliary bag for a schoolbag according to Claim 1, the width of the bottom portion is substantially the same as the width of the upper part of the bag body. An auxiliary bag for a schoolbag characterized by this.

3. In the auxiliary bag for a schoolbag according to any one of Claims 1 to 2, the belt portion is formed in an equilateral triangle shape. An auxiliary bag for a schoolbag characterized by this.

4. In the auxiliary bag for a schoolbag according to Claim 1, an attachment belt inserted into the lid of the schoolbag is provided on the back surface of the bag body. An auxiliary bag for a schoolbag characterized by this.

5. In the auxiliary bag for a schoolbag according to Claim 1, a pocket is provided on the bag body. An auxiliary bag for a schoolbag characterized by this.

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