JP3140219U - school bag - Google Patents

Abstract

Provided is a school bag that is durable and suppresses damage to a portion that is repeatedly loaded or bent.
A storage unit that stores articles, a shoulder belt that carries the storage unit, and a lower belt that is connected to the shoulder belt and includes a buckle. The shoulder belt 14 has a size adjusting hole 18 through which the buckle 15 is passed. A lid member 30 that covers the opening of the housing portion 12, a latch that removably latches the tip of the lid member 30 to the housing portion 12, and a tongue-shaped holding piece provided with the latch. A portion of the shoulder belt 14 and / or the holding piece to which a repeated load is applied has a sponge that is a core material having moderate flexibility. A flexible sheet-like synthetic fabric 22 stacked on a sponge and a backing fabric covering the sponge and the synthetic fabric 22 are provided.
[Selection] Figure 1

Description

  The present invention relates to a school bag provided with a storage section for storing a textbook and the like, and a shoulder belt for carrying the storage section.

  Conventionally, the shoulder bag of the school bag has been devised in various ways to prevent stuffiness and increase strength. A backband such as a school bag disclosed in Patent Document 1 is a tubular base material made of a cloth and crushed into a belt shape, and a main body thermocompression bonded to the front surface of the tubular base material The side resin layer, the back side resin layer thermocompression bonded to the back side of the tubular base material, and the both side edges of the front side resin layer and the back side resin layer are An outer edge formed by thermocompression bonding and a cushion inserted in the tubular base material are provided. This back strap has higher strength than known synthetic resin bands with a flat cord as the core, and the entire roundness and thickness can be freely adjusted by inserting a cushion into the tubular base material. can do.

Further, the shoulder belt annular belt body of the school bag disclosed in Patent Document 2 is an annular belt body that is detachable from the shoulder belt in a manner of inserting the shoulder belt on the inside, and a front side fabric having elasticity, It is comprised by the cushioning material which has the air permeability located in the side which contacts a body. According to the shoulder belt annular belt of the school bag, the stuffiness during use can be eliminated.
Japanese Utility Model Publication No. 4-66923 JP 2002-282030 A

  In the case of the above-described background art, holes for size adjustment are provided at equal intervals along the longitudinal direction in the portion close to the lower end of the shoulder belt. Since the load is repeatedly applied to the portion, the shoulder belt may be broken at the hole portion. In addition, the lid member that closes the housing is provided with a tongue-shaped holding piece at the tip, and a magnet locking tool is provided on the holding piece, but the holding piece is bent each time the lid member is opened and closed and repeatedly loaded. And it sometimes breaks due to fatigue. Furthermore, there are some cases in which the accommodation portion is provided with a string-like handle, but this handle may be broken due to fatigue due to repeated load.

  Since the strength of each part depends on the strength of the fabric, a fabric having a high tensile strength must be used, which may be expensive. Moreover, even if the fabric has a good texture, one having a low tensile strength could not be used.

  The present invention has been made in view of the above problems of the background art, and an object thereof is to provide a school bag that is durable and suppresses damage to a portion that is repeatedly loaded or bent.

  The present invention relates to a storage unit for storing articles, a shoulder belt for carrying the storage unit, a lower belt connected to the storage belt and connected to the storage unit, and a size adjustment through which the buckle is passed. A tongue-shaped holding piece provided with a hole, a lid member that covers the opening of the housing portion, and a locking tool that detachably locks the tip of the lid member to the housing portion; And at least one portion of the holding piece to which the repeated load is applied, a core material having moderate flexibility, a flexible sheet-like reinforcing material stacked on the core material, and covering the core material and the reinforcing material It is a school bag with a cloth.

  The reinforcing material is provided at a peripheral edge of the size adjusting hole of the shoulder belt. Further, the reinforcing member is provided on the holding piece. The accommodating portion may have a string-like handle at the top, and the reinforcing member may be provided on the handle.

  The school bag of the present invention has a simple structure, is durable, prevents damage to a portion that is repeatedly loaded or repeatedly bent, and can be used safely for a long period of time. Furthermore, the tensile strength can be improved while retaining the flexibility of the core material by reinforcing it with a flexible sheet-like reinforcing material in a portion using a flexible core material such as a shoulder belt.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIGS. 1-8 shows one Embodiment of this invention, The storage part 12 which accommodates articles | goods is provided in the school bag 10 of this embodiment. The accommodating portion 12 has a box shape with an opening 12 a provided above, and a pair of shoulder belts 14 is provided on the upper portion of the back surface 12 b of the accommodating portion 12.

  FIG. 2 shows the shoulder belt 14 as viewed from the back side in contact with the body. The shoulder belt 14 is a band that is bent in a shape along the body. It has been. A size adjusting hole 18 penetrating the shoulder belt 14 is provided in a portion closer to the lower end portion 14 b than the middle of the shoulder belt 14. The size adjusting holes 18 are provided at equal intervals along the longitudinal direction of the shoulder belt 14, and six are provided here. Further, the housing portion 12 is provided with a lower belt 17 that extends from the bottom surface of the housing portion 12 and has a buckle 15 at the tip so as to face the shoulder belt 14.

  FIG. 3 shows the inside of the shoulder belt 14 that is broken along the line AA in FIG. 2. Inside the shoulder belt 14, a sponge 20 as a core material is provided. Made of elastic material. On the surface 20a of the sponge 20 on the side opposite to the body, a synthetic fabric 22 that is a sheet-like reinforcing material is provided in an overlapping manner. The synthetic fabric 22 is made of nylon, for example, and may be a woven fabric or a non-woven fabric. For example, the product name is Clarino (manufactured by Kuraray). A surface fabric 24 is provided on the surface of the synthetic fabric 22 so as to be overlapped. The surface fabric 24 is made of the same material as that of the housing portion 12, for example, and is made of synthetic resin or natural leather. On the back surface 20b of the sponge 20 on the body side, a backing fabric 26 is provided so as to overlap. The back fabric 26 is made of the same material as the housing portion 12 and the front fabric 24, for example. The back fabric 26 is cut one size larger than the sponge 20, and the peripheral portion of the back fabric 26 is folded so as to wrap the end of the sponge 20, and is sandwiched and fixed between the synthetic fabric 22 and the front fabric 24. A thread 28 is stitched on the peripheral edge of the sponge 20, and the front fabric 24, the synthetic fabric 22, the sponge 20, and the back fabric 26 are sewn and sewn by the thread 28. Note that the contact surfaces of the sponge 20, the synthetic fabric 22, the front fabric 24, and the back fabric 26 may be bonded to each other with an adhesive.

  The sponge 20 is provided in the shape of the shoulder belt 14 and is not provided in the folded portion of the upper end portion 14a. The synthetic fabric 22 is provided only from the middle in the longitudinal direction of the shoulder belt 14 to the lower end portion 14 b and is provided around the size adjusting hole 18. The backing fabric 26 may be made of a switching backing fabric 27 of a material that is more flexible and cushioning than the backing fabric 26 from near the middle in the longitudinal direction of the shoulder belt 14 to the upper end portion 14a. The switching back fabric 27 is made of, for example, synthetic resin or natural leather, and may be colored with a lighter color than the back fabric 26.

  In the storage portion 12 of the school bag 10 of this embodiment, a lid member 30 that covers the opening 12 a is provided, and a tongue-shaped holding piece 32 is provided at the tip of the lid member 30. FIG. 4 is a view of the holding piece 32 from the surface, and the holding piece 32 has a straight side edge portion 32 a continuous to the tip of the lid member 30, and has a triangular shape with the side edge portion 32 a as a bottom side. The tip 32b provided at the apex is provided with a magnet locking tool 34 that is detachably locked to the outer side surface of the bottom of the accommodating portion 12, and a flap 36 that is used when the magnet locking tool 34 is removed. It has been.

  FIG. 5 shows the inside of the portion of the holding piece 32 broken along the line BB in FIG. Inside the holding piece 32, a cardboard 38 as a core material is provided. The cardboard 38 is, for example, the trade name Webron (manufactured by Takeda Sangyo). A front fabric 40 is provided on the surface 38 a of the cardboard 38 opposite to the storage portion 12, and the front fabric 40 is made of the same material as the storage portion 12, for example. On the back surface 38b of the cardboard 38 on the container 12 side, a synthetic fabric 42 that is a sheet-like reinforcing material is provided so as to overlap. On the further back surface of the synthetic fabric 42, a back fabric 44 is provided in an overlapping manner, and the back fabric 44 is made of the same material as that of the housing portion 12, for example. The front fabric 40 is cut slightly larger than the thick paper 38, and the peripheral edge of the front fabric 40 is folded so as to wrap the end of the thick paper 38, and is sandwiched and fixed between the synthetic fabric 42 and the back fabric 44. . A thread 46 is stitched on the peripheral edge of the cardboard 38, and the front fabric 40, the cardboard 38, the synthetic fabric 42, and the back fabric 44 are sewn and sewn by the thread 46.

  The shape of the holding piece 32 can be freely changed. For example, a Y-shaped holding piece 48 may be used as shown in FIG. FIG. 6 shows the holding piece 48 as viewed from the surface. The holding piece 48 has a pair of Y-shaped upper protrusions 48a continuously attached to the tip of the lid member 30, and the Y-shaped lower tip. A magnet locking member 34 and a flap 36 are provided on the portion 48b.

  FIG. 7 shows the inside of the portion of the holding piece 48 broken along the line CC in FIG. Inside the holding piece 48, a cardboard 50 as a core material is provided. On the surface 50a of the cardboard 50 on the side opposite to the housing portion 12, a synthetic fabric 52 that is a sheet-like reinforcing material is provided so as to overlap. An elastic sponge 54 is provided on the further surface of the synthetic fabric 52, and a front fabric 56 is provided on the further surface of the sponge 54. The front fabric 56 is made of the same material as that of the housing portion 12, for example. It is made. A back fabric 58 is provided on the back surface 50b of the cardboard 50 on the storage unit 12 side, and the back fabric 58 is made of the same material as the storage unit 12, for example. The back fabric 58 is cut slightly larger than the cardboard 50, and the peripheral portion of the back fabric 58 is folded so as to wrap the end portions of the cardboard 50, the synthetic fabric 52, and the sponge 54, and between the sponge 54 and the front fabric 56. It is clamped and fixed. A thread 60 is stitched on the peripheral edge of the cardboard 50, and the front cloth 56, the sponge 54, the synthetic fiber 52, the cardboard 50, and the back cloth 58 are sewn and sewn by the thread 60.

  A string-like handle 62 is provided near the upper portion of the back surface 12b of the school bag 10 of this embodiment. The handle 62 is provided almost horizontally and is bent slightly upward. Both ends of the handle 62 are fixed to the both sides of the attachment position of the shoulder belt 14 on the back surface 12 b of the housing portion 12 by metal fittings 64.

  FIG. 8 is a perspective view in which the handle 62 is cut vertically, and a rope 66 that is a core material is provided inside the handle 62. A synthetic fabric 68 as a reinforcing material is provided outside the rope 66, and a front fabric 70 is provided outside the synthetic fabric 68. The synthetic fabric 68 and the front fabric 70 are preliminarily overlapped with each other and wound around the rope 66. The ends of the synthetic fabric 68 and the front fabric 70 that are positioned in the longitudinal direction of the rope 66 are aligned with each other, and the end portions are Further, it is folded inside and sewn with a thread 72.

  According to the school bag 10 of this embodiment, it has a simple structure and is durable, and it can be used safely by preventing damage to a portion that is repeatedly loaded or repeatedly bent. The portion where the flexible sponge 20 such as the shoulder belt 14 is used as the core material is also reinforced with the flexible sheet-like synthetic fabric 22 to leave the flexibility of the sponge 20 and improve the tensile strength. . As a result, the shoulder belt 14 is in close contact with the body and easily carried on the back. Since the tensile strength of each of the synthetic fabrics 22, 42, 52 is high, the materials of the front fabrics 24, 40, 56 and the back fabric 26 are those having a good texture and appearance without considering the tensile strength. And can diversify the design.

  In addition, this invention is not limited to the said embodiment, The structure of a school bag can be changed freely and you may put a reinforcing material in other parts other than the above. Moreover, you may put only in any one, without putting a reinforcing material in all of a shoulder belt, a holding piece, and a handle. The reinforcing material may be other than the synthetic fabric, and the material can be appropriately selected.

It is a perspective view of the school bag of one embodiment of this invention. It is a rear view of the shoulder belt of the school bag of this embodiment. FIG. 3 is a cross-sectional view taken along line AA in FIG. 2. It is a rear view of the holding piece of the school bag of this embodiment. FIG. 5 is a cross-sectional view taken along line B-B in FIG. 4. It is a rear view which shows the modification of the holding piece of the lid member of the school bag of this embodiment. It is the CC sectional view taken on the line of FIG. It is a partial fracture perspective view of the handle of the school bag of this embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 School bag 12 Accommodating part 14 Shoulder belt 15 Buckle 17 Lower belt 18 Size adjusting hole 20 Sponge 22 Synthetic fabric 24 Front fabric 26 Back fabric 28 Thread 30 Lid member 32 Holding piece 34 Magnet locking tool 62 Handle

Claims (4)

  An accommodating portion for accommodating an article; a shoulder belt for carrying the accommodating portion; a lower belt connected to the shoulder belt and connected to the accommodating portion; and a size adjusting hole through which the buckle is passed; A tongue-shaped holding piece provided with a lid member that covers the opening of the housing portion, and a locking tool that detachably locks the tip of the lid member to the housing portion is provided, and the shoulder belt and the holding piece At least one of the portions where the repeated load is applied is provided with a core material having an appropriate flexibility, a flexible sheet-like reinforcing material superimposed on the core material, and a fabric covering the core material and the reinforcing material. School bag characterized by that.   2. The school bag according to claim 1, wherein the reinforcing material is provided at a peripheral portion of the size adjusting hole of the shoulder belt.   The school bag according to claim 2, wherein the reinforcing member is provided on the holding piece.   The school bag according to claim 3, wherein the housing portion has a string-like handle at an upper portion, and the reinforcing material is provided on the handle.

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