JP2022102072A - Satchel - Google Patents

Abstract

To provide a satchel which can reduce the likelihood of breaking of a reinforcement piece and which also makes the reinforcement piece look good.SOLUTION: The satchel 100 includes: a housing part; a flap part 2; a pair of shoulder belts; and a pair of reinforcement pieces RP. Each of the pair of reinforcement pieces RP contains body part MP, a first projection P1, and a second projection P2. The first projection P1 protrudes from the body part MP while the second projection P2 protrudes from the body part MP on the opposite side from a back plate 1a relative to the first projection P1. The body part MP interposes any one of the mutually superimposed flap part 2, back plate 1a, and a pair of gussets 1b. The first projection P1 is bent from the body part MP along the end part EP of the back plate 1a that constitutes an opening part OP. The second projection P2 is bent from the body part MP toward the end part EP of the back plate 1a in a manner covering the first projection P1.SELECTED DRAWING: Figure 7

Description

The present invention relates to a school bag.

Conventionally, in a school bag, a reinforcing piece is sewn on the side edge of a connecting portion between the back plate of the accommodating portion and the lid portion. For example, Japanese Patent No. 5219159 (Patent Document 1) describes a school bag in which a reinforcing piece is sewn on the side edge of a connection portion between a back plate of a housing portion and a lid portion.

In the school bag described in this publication, the reinforcing piece has a rectangular main body and a protrusion integrally formed at the upper end portion of the main body. The protrusion consists of a base end portion that protrudes outward at a right angle to the upper end portion of the main body, and a locking portion that is continuous from the tip end of the base end portion and is wider than the base end portion. The protrusion is bent along the upper end of the back plate. The portions protruding from the base end portion of the locking portion to both sides are bent to the front surface and the back surface of the back plate. One of the locking portions, which protrudes from the base end portion to both sides, is inserted between the back plate and the lid member. The other protruding from the base end portion of the locking portion to both sides is inserted between the side edge portion of the gusset portion and the back surface of the main body. In this state, the locking portion is sewn with a thread.

Japanese Patent No. 5219159

In the school bag described in the above publication, since the strength of the portion along the upper end portion of the back plate of the protrusion is low, the reinforcing piece is easily torn because the portion along the upper end portion of the back plate of the protrusion is sewn with a thread. In addition, the edge of the fabric at the upper end of the main body is exposed on the front side of the protrusion, so that the reinforcing piece does not look good.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a school bag capable of making the reinforcing piece difficult to tear and having a good-looking reinforcing piece.

The school bag of the present invention includes a storage portion, a lid portion, a pair of backpack belts, and a pair of reinforcing pieces. The accommodating portion is provided with an opening. The lid is connected to the accommodating portion so that the opening can be opened and closed. A pair of backpack belts are connected to the housing. A pair of reinforcing pieces are sewn to the accommodating portion and the lid portion. The accommodating portion includes a back plate and a pair of gusset portions. A lid and a pair of backpack belts are connected to the back plate. The pair of gussets are connected to the back plate and arranged so as to face each other. Each of the pair of reinforcing pieces includes a main body portion, a first protruding portion, and a second protruding portion. The first protruding portion protrudes from the main body portion. The second protruding portion protrudes from the main body portion on the side opposite to the back plate with respect to the first protruding portion. The main body portion sandwiches a lid portion, a back plate, and one of a pair of gusset portions that are overlapped with each other. The first protrusion is bent from the main body along the end of the back plate constituting the opening. The second protrusion is bent from the main body toward the end of the back plate so as to cover the first protrusion.

According to the school bag of the present invention, the reinforcing piece can be made difficult to tear and the appearance of the reinforcing piece can be improved.

It is a schematic perspective view of the school bag which concerns on embodiment of this invention. It is a schematic rear view of the school bag which concerns on embodiment of this invention. It is the schematic perspective view in the state which the lid part of the school bag which concerns on embodiment of this invention is open. It is a schematic development front view of the reinforcement piece in the school bag which concerns on embodiment of this invention. It is a schematic development top view of the reinforcing piece in the school bag which concerns on embodiment of this invention. It is a schematic perspective view which shows the structure of the reinforcing piece in the state which the lid part of the school bag which concerns on embodiment of this invention is open. It is an enlarged view of the VII part of FIG. It is a schematic side view which shows the structure of the reinforcing piece of FIG. It is a schematic perspective view which shows the structure of the reinforcing piece in the school bag of the comparative example. It is a schematic side view of the reinforcing piece in the modification 1 of the school bag which concerns on embodiment of this invention. It is a schematic development front view of the reinforcing piece in the modification 2 of the school bag which concerns on embodiment of this invention. It is a schematic development top view of the reinforcing piece in the modification 2 of the school bag which concerns on embodiment of this invention. It is a schematic side view of the reinforcing piece in the modification 2 of the school bag which concerns on embodiment of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following figures, the same or corresponding parts are designated by the same reference numerals, and duplicate explanations will not be repeated.

The configuration of the school bag 100 according to the embodiment will be described with reference to FIGS. 1 to 8. As shown in FIGS. 1 to 3, the school bag 100 according to the embodiment includes an accommodating portion 1, a lid portion 2, a pair of backpack belts 3, a connecting member 4, a sub accommodating portion 5, and a front pocket. It mainly has 6, a gusset belt 7, a connecting portion 8, a tip portion 9, a holding portion 10, a reinforcing portion 11, a thread 12, a protective tape 13, and a reinforcing piece RP.

FIG. 1 is a schematic perspective view of the school bag 100 according to the embodiment as viewed from the front side. FIG. 2 is a schematic rear view seen from the back side of the school bag 100 according to the embodiment. FIG. 3 is a schematic perspective view of the state in which the lid 2 of the school bag 100 according to the embodiment is opened, as viewed from the front side.

The accommodating portion 1 includes a back plate 1a, a pair of gusset portions 1b, a front plate 1c, and a bottom portion 1d. The accommodating portion 1 is provided with an opening OP.

In the present embodiment, in a state where the opening OP is arranged on the upper side and the bottom portion 1d is arranged on the lower side, the direction in which the opening OP and the bottom portion 1d face each other is defined as the vertical direction D1. Further, in a state where the opening OP is arranged on the upper side and the bottom portion 1d is arranged on the lower side, the direction in which the pair of gusset portions 1b face each other is defined as the left-right direction D2. Further, in a state where the opening OP is arranged on the upper side and the bottom portion 1d is arranged on the lower side, the direction in which the back plate 1a and the front plate 1c face each other is defined as the front-rear direction D3. The vertical direction D1, the horizontal direction D2, and the front-back direction D3 are orthogonal to each other.

An opening OP is provided at the upper end of the accommodating portion 1. The upper ends of the back plate 1a, the pair of gusset portions 1b, the front plate 1c, and the bottom portion 1d each form an opening OP. The accommodating portion 1 has an accommodating space IS communicating with the opening OP. The accommodation space IS is a space surrounded by each of the back plate 1a, the pair of gusset portions 1b, the front plate 1c, and the bottom portion 1d. The accommodating portion 1 is configured to accommodate textbooks and the like in the accommodating space IS through the opening OP.

A lid 2 and a pair of backpack belts 3 are connected to the back plate 1a. The lid 2 is connected to the back plate 1a. A connecting member 4 is attached to the back plate 1a. A part of the connecting member 4 is covered with a cover member. Each of the pair of backpack belts 3 is connected to the back plate 1a via the connecting member 4.

The pair of gusset portions 1b are connected to the back plate 1a. The pair of gusset portions 1b are connected to the outer edge of the back plate 1a. The pair of gusset portions 1b are arranged so as to face each other. The pair of gusset portions 1b are configured to rise from both ends of the bottom portion 1d.

The front plate 1c is connected to a pair of gusset portions 1b and a bottom portion 1d. The front plate 1c is arranged so as to face the back plate 1a.

The bottom portion 1d is connected to the back plate 1a, the pair of gusset portions 1b, and the front plate 1c. The bottom portion 1d is arranged at the lower end of the accommodating portion 1. The bottom portion 1d is arranged so as to face the opening OP.

The lid portion 2 is connected to the accommodating portion 1 so that the opening OP can be opened and closed. Specifically, the lower end portion of the lid portion 2 is connected to the upper end portion of the back plate 1a of the accommodating portion 1. The lid portion 2 is configured so that the opening OP can be opened and closed with the upper end portion of the back plate 1a as a base end.

As shown in FIG. 1, with the lid 2 closed, the lid 2 can cover the opening OP of the accommodating portion 1, the front plate 1c, the sub accommodating portion 5, and the front pocket 6. Has been done. Further, as shown in FIG. 3, with the lid portion 2 opened, the lid portion 2 may expose the opening OP, the front plate 1c, the sub-accommodation portion 5, and the front pocket 6 of the accommodating portion 1. It is configured to be possible.

The tip portion 9 is connected to the lid portion 2 via the connecting portion 8. The base of the connecting portion 8 is connected to the lid portion 2. The tip of the connecting portion 8 is connected to the tip portion 9. The tip portion 9 is configured to be detachably attached to a holding portion 10 attached to the bottom portion 1d of the accommodating portion 1. The tip portion 9 is provided with an engagement hole that can be engaged with the pinch of the holding portion 10.

The pair of backpack belts 3 are connected to the accommodating portion 1. Specifically, one end of each of the pair of backpack belts 3 is connected to the upper end portion of the back plate 1a via the connecting member 4. The other ends of each of the pair of backpack belts 3 are connected to the bottom portion 1d of the accommodating portion 1 via the holding portion 10. The pair of backpack belts 3 are provided one on each side. The pair of backpack belts 3 are configured to be worn on both shoulders of the user when the user carries the school bag 100 on his / her back.

The connecting member 4 is configured to attach a pair of backpack belts 3 to the back plate 1a. The connecting member 4 is arranged on the outside of the back plate 1a. The connecting member 4 is arranged on the upper part of the back plate 1a.

The sub-accommodation portion 5 is arranged on the front side of the front plate 1c. The sub-accommodation portion 5 is arranged on the opposite side of the accommodation space IS with respect to the front plate 1c. The sub-accommodation unit 5 is configured to accommodate stationery and the like.

The front pocket 6 is arranged on the front side of the sub-accommodation portion 5. The front pocket 6 is arranged on the side opposite to the accommodating portion 1 with respect to the sub accommodating portion 5. The front pocket 6 is configured to be openable and closable by a fastener.

The gusset belt 7 is arranged over the pair of gusset portions 1b and the sub-accommodation portion 5 of the accommodating portion 1. The gusset belt 7 is arranged above the pair of gusset portions 1b.

The reinforcing portion 11 is for reinforcing the opening OP of the accommodating portion 1. The reinforcing portion 11 is continuously attached to the pair of gusset portions 1b and the front plate 1c of the accommodating portion 1. The reinforcing portion 11 is attached to the pair of gusset portions 1b of the accommodating portion 1 and the upper end portions of the front plate 1c. The reinforcing portion 11 is attached to the outside of the pair of gusset portions 1b and the front plate 1c of the accommodating portion 1.

The pair of reinforcing piece RPs are sewn to the accommodating portion 1 and the lid portion 2. Each of the pair of reinforcing piece RPs is sewn with a thread 12 at the upper end in the vertical direction D1 of the connecting portion between the accommodating portion 1 and the lid portion 2 and at the left end and the right end in the left-right direction D2, respectively. The side edges of the accommodating portion 1 and the lid portion 2 are covered with the protective tape 13. The pair of reinforcing pieces RP are sewn from the outside of the protective tape 13 to the accommodating portion 1 and the lid portion 2 with a thread 12. With the lid 2 of the school bag open, the gusset 1b of the accommodating portion 1 and the side wall portions of the lid 2 are arranged substantially linearly with each other.

Next, the configuration of the reinforcing piece RP will be described in detail with reference to FIGS. 4 to 8.

FIG. 4 is a schematic development front view of the reinforcing piece RP seen from the front side of the reinforcing piece RP. FIG. 5 is a schematic development top view of the reinforcing piece RP seen from the upper surface side of the reinforcing piece RP. FIG. 6 is a schematic perspective view showing the configuration of the reinforcing piece RP in a state where the lid 2 of the school bag 100 is opened when viewed from the front side of the school bag 100. FIG. 7 is an enlarged view of the VII portion of FIG. FIG. 8 is a schematic side view showing the configuration of the reinforcing piece RP of FIG. 7 as viewed from the side surface side of the school bag 100. FIG. 8 shows only the back plate 1a, the gusset portion 1b, the lid portion 2, the reinforcing portion 11, and the reinforcing piece RP for convenience of explanation.

As shown in FIGS. 4 and 5, each of the pair of reinforcing piece RPs includes a main body MP, a first protrusion P1 and a second protrusion P2. The main body MP is configured to have a substantially trapezoidal shape. The main body MP has a first end E1 and a second end E2. The first protruding portion P1 protrudes from the main body portion MP. Specifically, the first protruding portion P1 protrudes from the first end E1 of the main body portion MP to the side opposite to the second end E2. The first protruding portion P1 is composed of a rectangular shape connected to the main body MP and an arc shape connected to the rectangular shape on the opposite side of the main body MP. The second protruding portion P2 protrudes from the main body portion MP. Specifically, the second protruding portion P2 protrudes from the first end E1 of the main body portion MP to the side opposite to the second end E2. The second protruding portion P2 is connected to the main body MP and the substantially quadrant shape on the opposite side of the first protruding portion P1 with respect to the substantially quadrant shape connected to the main body MP. It is composed of a substantially square shape.

The length LP1 of the first protruding portion P1 preferably has a dimension equal to or less than the width WP2 of the second protruding portion P2. The width WP1 of the first protruding portion P1 preferably has a dimension of the length LP2 or less of the second protruding portion P2. The length LP1 of the first protruding portion P1 is the length of the first protruding portion P1 along the direction in which the first protruding portion P1 protrudes from the main body portion MP. The width WP1 of the first protruding portion P1 is the width of the first protruding portion P1 along the direction orthogonal to the direction in which the first protruding portion P1 protrudes from the main body portion MP. The length LP2 of the second protruding portion P2 is the length of the second protruding portion P2 along the direction in which the second protruding portion P2 protrudes from the main body portion MP. The width WP2 of the second protruding portion P2 is the width of the second protruding portion P2 along the direction orthogonal to the direction in which the second protruding portion P2 protrudes from the main body portion MP.

The width WP1 of the first protruding portion P1 preferably has a dimension equal to or larger than the width of the upper end portion of the back plate 1a. The length LP2 of the second protruding portion P2 preferably has a dimension equal to or larger than the width of the upper end portion of the back plate 1a.

A first protruding portion P1 and a second protruding portion P2 are connected to the first end E1. The second end E2 is arranged on the side opposite to the first protruding portion P1 and the second protruding portion P2 with respect to the first end E1. The width of the main body MP is widened from the second end E2 to the first end E1. The width WE1 of the first end E1 is larger than the width WE2 of the second end E2. The main body MP is configured in a tapered shape so that the width becomes narrower toward the second end E2.

The first protruding portion P1 and the second protruding portion P2 are arranged side by side in a direction orthogonal to the direction in which the first end E1 and the second end E2 face each other. The first protruding portion P1 and the second protruding portion P2 are adjacent to each other.

In the present embodiment, each of the pair of reinforcing piece RPs has a uniform thickness. Further, in the present embodiment, each of the pair of reinforcing piece RPs has the same thickness as each other.

As shown in FIGS. 6 to 8, the main body MP sandwiches the lid 2, the back plate 1a, and one of the pair of gussets 1b, which are overlapped with each other. In the present embodiment, the main body MP sandwiches the reinforcing portion 11 overlapped with the gusset portion 1b. The main body MP extends in the vertical direction D1 so as to cover the lower end of the lid 2, the upper end of the back plate 1a, the upper end of any one of the pair of gussets 1b, and the reinforcing portion 11. The main body MP extends from the lid 2 to the accommodating portion 1 so as to cover each side edge portion of any one of the lid portion 2, the back plate 1a, and the pair of gusset portions 1b, in which the reinforcing portions 11 are overlapped. ing.

The first protruding portion P1 is bent from the main body portion MP so as to be along the end portion EP of the back plate 1a constituting the opening OP. The first protruding portion P1 is overlapped with the end portion EP of the back plate 1a in a state of being bent from the main body portion MP. The first protruding portion P1 extends in the left-right direction D2 along the upper end portion of the back plate 1a.

The second protruding portion P2 protrudes from the main body portion MP on the side opposite to the back plate 1a with respect to the first protruding portion P1. The second protruding portion P2 is bent from the main body portion MP toward the end portion of the back plate 1a so as to cover the first protruding portion P1. The second protruding portion P2 is overlapped with the first protruding portion P1 in a state of being bent from the main body portion MP. The second protruding portion P2 extends in the front-rear direction D3 so as to intersect the first protruding portion P1. The direction in which the second protruding portion P2 is bent from the main body portion MP intersects with the direction in which the first protruding portion P1 is bent from the main body portion MP.

Each side end of the pair of reinforcing piece RPs is configured to be along the side end of the protective tape 13 in the left-right direction D2. It is preferable that the pair of reinforcing pieces RP is configured to have higher strength than the protective tape 13. The material of the pair of reinforcing pieces RP is, for example, artificial leather, natural leather, or the like.

Next, the action and effect of the school bag 100 according to the embodiment will be described in comparison with the comparative example.

FIG. 9 is a schematic perspective view showing the configuration of the reinforcing piece RP in the school bag 100 of the comparative example, and is a schematic perspective view corresponding to FIG. 7.

With reference to FIG. 9, in the reinforcing piece RP in the school bag 100 of the comparative example, the configuration of the protrusion PP is mainly different from that of the school bag 100 according to the embodiment.

The reinforcing piece RP in the school bag 100 of the comparative example includes a rectangular main body portion MP and a protruding portion PP protruding from the main body portion MP. The protruding portion PP includes a base end portion PA that protrudes outward at a right angle to the upper end portion of the main body portion MP, and a locking portion PB that is continuous from the tip end of the base end portion PA and wider than the base end portion PA. I'm out. The protrusion PP is bent along the upper end portion of the back plate 1a. The portions of the locking portion PB protruding from the base end portion PA to both sides are bent to the front surface and the back surface of the back plate 1a. One of the locking portions PB protruding from the base end portion PA to both sides is inserted between the back plate 1a and the lid portion 2. The other protruding from the base end PA of the locking portion PB to both sides is inserted between the side edge portion of the gusset portion 1b and the back surface of the main body portion MP. In this state, the locking portion PB is sewn with the thread 12.

In the school bag 100 of the comparative example, the portion along the upper end portion of the back plate 1a of the protrusion PP is one layer. Therefore, the strength of the portion along the upper end portion of the back plate 1a of the protrusion PP is low. Therefore, the portion along the upper end portion of the back plate 1a of the protrusion PP is sewn with the thread 12, so that the reinforcing piece RP is easily torn. Further, the edge of the fabric at the upper end of the main body MP is exposed on the front side of the protrusion PP. The edges of the fabric have not been treated to improve its appearance. Therefore, the appearance of the reinforcing piece RP is not good.

According to the school bag 100 according to the embodiment, the second protruding portion P2 is bent from the main body portion MP toward the end portion EP of the back plate 1a so as to cover the first protruding portion P1. Therefore, the first protruding portion P1 is covered with the second protruding portion P2. Therefore, even if the first protruding portion P1 and the second protruding portion P2 are sewn with the thread 12, the reinforcing piece RP can be made difficult to tear. Further, since the fabric end of the upper end portion of the main body portion MP is not exposed on the side opposite to the back plate 1a with respect to the first protruding portion P1, the appearance of the reinforcing piece RP can be improved.

Further, the action of bending the second protruding portion P2 is easier than in the case where the portions protruding from the base end portion PA of the locking portion PB of the comparative example are bent to the front surface and the back surface of the back plate 1a. .. Therefore, the work of attaching the reinforcing piece RP becomes easy.

Further, it is possible to suppress the formation of a gap between the first protruding portion P1 and the main body portion MP on the side opposite to the back plate 1a with respect to the first protruding portion P1. Therefore, it is possible to prevent water or the like from entering through the gap.

According to the school bag 100 according to the embodiment, the length LP1 of the first protruding portion P1 has a dimension equal to or less than the width WP2 of the second protruding portion P2, and the width WP1 of the first protruding portion P1 is the first. 2 The protrusion P2 has a length of LP2 or less. Therefore, the entire first protruding portion P1 can be covered by the second protruding portion P2. Therefore, it is possible to prevent the portion of the first protruding portion P1 that is not covered by the second protruding portion P2 from being sewn with the thread 12. Therefore, the reinforcing piece RP can be reliably made difficult to tear. Further, since the entire first protruding portion P1 can be covered by the second protruding portion P2, the appearance of the reinforcing piece RP can be surely improved.

According to the school bag 100 according to the embodiment, the width WP1 of the main body portion MP is widened from the second end E2 to the first end E1. Reinforced by arranging the portion where the width of the main body MP is wide at the place where the lid 2 and the accommodating portion 1 overlap, and arranging the portion where the width of the main body MP is narrow only in the accommodating portion 1. The side end of the one-sided RP can be aligned with the side end of the protective tape 13 in the left-right direction D2. This makes it possible to further improve the appearance of the reinforcing piece RP.

Next, a modified example of the school bag 100 according to the embodiment will be described. Unless otherwise specified, the modified example of the school bag 100 according to the embodiment has the same configuration and effect as the school bag 100 according to the above embodiment.

With reference to FIG. 10, the modification 1 of the school bag 100 according to the embodiment is different from the school bag 100 according to the embodiment in the configuration of the second protruding portion P2 of the reinforcing piece RP. FIG. 10 is a schematic side view of the reinforcing piece RP in the modified example 1 of the school bag 100 according to the embodiment, and is a schematic side view corresponding to FIG.

In the first modification of the school bag 100 according to the embodiment, the tip TP of the second protruding portion P2 is inserted between the back plate 1a and the lid portion 2. The tip TP of the second protrusion P2 is the tip of the second protrusion P2 in the direction in which the second protrusion P2 protrudes from the main body MP.

According to the first modification of the school bag 100 according to the embodiment, since the tip TP of the second protruding portion P2 is inserted between the back plate 1a and the lid portion 2, the fabric end of the tip TP is not exposed. .. Therefore, the appearance of the reinforcing piece RP can be further improved. Further, since the tip TP of the second protruding portion P2 is inserted between the back plate 1a and the lid portion 2, it is possible to make it difficult for the second protruding portion P2 to come off.

With reference to FIGS. 11 and 12, the second modification of the school bag 100 according to the embodiment is mainly different in that the reinforcing piece RP includes the third protrusion P3. FIG. 11 is a schematic development front view of the reinforcing piece RP in the second modification of the school bag 100 according to the embodiment, and is a schematic development front view corresponding to FIG. FIG. 12 is a schematic development top view of the reinforcing piece RP in the second modification of the school bag 100 according to the embodiment, and is a schematic development top view corresponding to FIG.

In the second modification of the school bag 100 according to the embodiment, each of the pair of reinforcing piece RPs includes a third protruding portion P3 in addition to the first protruding portion P1 and the second protruding portion P2. The third protruding portion P3 protrudes from the main body portion MP. Specifically, the third protruding portion P3 protrudes from the first end E1 of the main body portion MP to the side opposite to the second end E2. The third protruding portion P3 is composed of a rectangular shape connected to the main body MP and an arc shape connected to the rectangular shape on the opposite side of the main body MP.

The third protruding portion P3 protrudes from the main body portion MP on the side opposite to the second protruding portion P2 with respect to the first protruding portion P1. The third protrusion P3 is adjacent to the first protrusion P1.

In the reinforcing piece RP in the modified example 2 of the school bag 100 according to the embodiment, the first protruding portion P1 and the second protruding portion P2 are compared with the reinforcing piece RP in the modified example 2 of the school bag 100 according to the embodiment. The shape is different. The first protruding portion P1 is composed of a rectangular shape connected to the main body MP and an arc shape connected to the rectangular shape on the opposite side of the main body MP. The second protruding portion P2 is composed of a rectangular shape connected to the main body MP and an arc shape connected to the rectangular shape on the opposite side of the main body MP.

With reference to FIG. 13, the third protruding portion P3 protrudes from the main body portion MP on the side opposite to the first protruding portion P1 and the second protruding portion P2 with respect to the lid portion 2. FIG. 13 is a schematic side view of the reinforcing piece RP in the second modification of the school bag 100 according to the embodiment, and is a schematic side view corresponding to FIG. 8. The third protruding portion P3 has a dimension equal to or higher than the height of the second protruding portion P2. The third protruding portion P3 has a dimension equal to or higher than the height of the second protruding portion P2 with the lid portion 2 interposed therebetween.

According to the second modification of the school bag 100 according to the embodiment, since the third protruding portion P3 has a dimension equal to or larger than the height of the second protruding portion P2, the second protruding portion P2 is sewn with the thread 12. When attached, the third protrusion P3 can be reliably sewn.

It should be considered that the embodiments disclosed this time are exemplary in all respects and not restrictive. The scope of the present invention is shown by the scope of claims rather than the above description, and is intended to include all modifications within the meaning and scope equivalent to the scope of claims.

1 accommodating part, 1a back plate, 1b gusset part, 1c front plate, 1d bottom part, 2 lid part, 3 belt, 4 connecting member, 5 sub-accommodating part, 6 front pocket, 7 gusset belt, 8 connection part, 9 tip part, 10 Holding part, 11 Reinforcing part, 12 Thread, 13 Protective tape, 100 school bag, E1 1st end, E2 2nd end, MP main body part, OP opening, P1 1st protruding part, P2 2nd protruding part, P3 1st 3 Protrusion, RP reinforcement piece, TP tip.

Claims (5)

A containment unit with an opening and
A lid portion connected to the accommodating portion so that the opening can be opened and closed, and a lid portion.
A pair of backpack belts connected to the housing and
It is provided with a pair of reinforcing pieces sewn to the accommodating portion and the lid portion.
The accommodating portion includes a back plate to which the lid portion and the pair of backpack belts are connected, and a pair of gusset portions connected to the back plate and arranged so as to face each other.
Each of the pair of reinforcing pieces has a main body portion, a first protruding portion protruding from the main body portion, and a second protruding portion protruding from the main body portion on the side opposite to the back plate with respect to the first protruding portion. Including and
The main body portion sandwiches the lid portion, the back plate, and any one of the pair of gusset portions that are overlapped with each other.
The first protruding portion is bent from the main body portion so as to be along the end portion of the back plate constituting the opening portion.
The second protruding portion is a school bag that is bent from the main body portion toward the end portion of the back plate so as to cover the first protruding portion. The length of the first protrusion has a dimension equal to or less than the width of the second protrusion.
The school bag according to claim 1, wherein the width of the first protrusion has a dimension equal to or less than the length of the second protrusion. The school bag according to claim 1 or 2, wherein the tip of the second protrusion is inserted between the back plate and the lid. The main body is arranged on the side opposite to the first protrusion and the second protrusion with respect to the first end to which the first protrusion and the second protrusion are connected. Including the second end
The school bag according to any one of claims 1 to 3, wherein the width of the main body portion is widened from the second end to the first end. Each of the pair of reinforcing pieces includes a first protruding portion with respect to the lid portion and a third protruding portion protruding from the main body portion on the side opposite to the second protruding portion.
The school bag according to claim 1 or 2, wherein the third protrusion has a dimension equal to or higher than the height of the second protrusion.

Images