JP3011704U - school bag - Google Patents

Abstract

(57) [Summary] [Structure] A linear reinforcing material 10 made of a shape memory alloy is fixed to the upper end portion of the front partition portion 3 forming the upper end opening peripheral edge of the school bag body 1. The reinforcing member 10 may be arranged along a long reinforcing frame 11 made of a synthetic resin plate fixed to the peripheral edge of the upper end opening of the school bag body 1. Further, it is preferable that the shape memory alloy has a shape restoration temperature set to a temperature slightly higher than the ambient temperature. [Effect] Even if the reinforcing material 10 is deformed by being applied with a load exceeding the elastic limit, the peripheral edge of the upper end opening of the school bag body 1 can be easily returned to its original shape, and the reinforcing material 10 made of this shape memory alloy is used in the school bag body. It did not penetrate through the periphery of the upper opening of No. 1 and was durable and safe for use, and did not deteriorate the appearance.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention relates to a school bag having a reinforcing structure around the upper end opening of the school bag body.

[0002]

[Prior art]

 The above-mentioned reinforcing structure in the conventional school bag is such that a reinforcing material made of an elastic metal wire or a synthetic resin plate is sandwiched between the upper end portions of the front partitioning portions that form the periphery of the upper end opening portion of the main body of the school bag.

[0003]

[Problems to be solved by the device]

 However, in the conventional school bag described above, when a load exceeding the elastic limit of the reinforcing material is applied, the periphery of the upper end opening of the school bag body cannot maintain its original shape and is deformed. When deformed, there was a problem that it was difficult to return to the original shape with residual strain.

Further, in the above-described conventional school bag, in which the elastic metal wire is used as the reinforcing material, the elastic deformation is repeated many times when the load is equal to or less than the elastic limit of the reinforcing material. The force of sandwiching this reinforcing material around the periphery gradually weakens. Therefore, the reinforcing material easily moves around the upper end opening edge of the school bag body, the member forming the upper end opening peripheral edge is worn away by friction, and the reinforcing material penetrates through this member, and the upper end opening part of the school bag body. There was a problem that it popped out of the periphery and was dangerous when used, and the appearance was poor.

Further, in the conventional school bag described above, the one using a synthetic resin plate as a reinforcing material is not sufficient in strength itself, and loses its shape when used for a long period of time or cannot withstand messy use. Had.

Therefore, the present invention has been made in order to solve the above-described conventional problems, and a reinforcing material sandwiched between the upper end portions of the front partitioning portions forming the upper end opening peripheral edge of the school bag body is made of a shape memory alloy. As a result, even if the reinforcing material is deformed under a load exceeding the elastic limit, it can be easily returned to its original shape, and the reinforcing material made of this shape memory alloy does not penetrate through the periphery of the upper end opening of the school bag body. The purpose of the present invention is to provide a school bag that is durable and safe for use, and that does not deteriorate the appearance.

[0007]

[Means for Solving the Problems]

 Therefore, in the school bag of the present invention, the linear reinforcing material 10 made of a shape memory alloy is fixed to the upper end portion of the front partitioning portion 3 forming the periphery of the upper end opening portion of the school bag body 1.

The reinforcing member 10 may be arranged along a long reinforcing frame 11 made of a synthetic resin plate fixed to the peripheral edge of the upper end opening of the school bag body 1. Further, the reinforcing member 10 is fitted along the reinforcing frame 11 by fitting it into the groove 12 formed in the elongated reinforcing frame 11 made of a synthetic resin plate fixed to the periphery of the upper end opening of the school bag body 1. Preferably. Further, the reinforcing frame 11 may be bent and fixed to the periphery of the upper end opening of the school bag body 1 in a substantially U shape. Moreover, it is preferable that the shape recovery temperature of the shape memory alloy is set to a temperature slightly higher than the ambient temperature.

[0009]

[Action]

 Since the school bag of this invention has the above-mentioned configuration, the periphery of the upper end opening of the school bag body 1 is very strong, and even if the load exceeding the elastic limit of the reinforcing member 10 is applied, the periphery of the school bag body 1 at the upper end opening is deformed. Even if it is done, if the temperature is higher than the shape restoration temperature of the shape memory alloy, the peripheral edge of the upper end opening of the school bag body 1 can be easily returned to the original shape.

Further, in the school bag of the present invention, when the reinforcing material 10 made of a shape memory alloy is arranged along the reinforcing frame 11 made of a synthetic resin plate, the reinforcing material 10 made of the shape memory alloy is It becomes difficult to move and does not stick out from the periphery of the upper end opening of the school bag body 1.

[0011]

【Example】

 Hereinafter, the structure of the school bag of the present invention will be described in detail with reference to the drawings shown as the embodiments.

FIG. 1 shows an embodiment of a school bag of the present invention. The school bag body 1 is composed of left and right gusset portions 2, 2, a front partition portion 3, a back portion 4 and a bottom portion 5, and has an open upper end. It is shaped like a box. Incidentally, pockets 6, 6 are attached to the front surface of the front partitioning portion 3.

As shown in FIG. 2, the left and right gusset portions 2 and 2 are formed by sandwiching a cushion member 9 made of synthetic resin or the like between a front member 7 and a back member 8 made of synthetic leather or the like. The left and right gusset portions 2 and 2 are integrally formed continuously on the left and right of the bottom portion 5. The left and right sides and the bottom side of the front partitioning section 3 are sewn to the front sides of the left and right gusset sections 2, 2 and the bottom section 5, respectively, and the rear sides of the left and right gusset sections 2, 2 and the bottom section 5 are The left and right sides and the bottom side of the back 4 are sewn together.

The upper end portions of the left and right gusset portions 2, 2 and the upper end portion of the front partition portion 3 form an upper end opening peripheral edge of the school bag body 1, and the upper end portion of the front partition portion 3 has a shape memory. A linear reinforcing material 10 made of an alloy is fixed.

In order to fix the reinforcing member 10, in the illustrated embodiment, a long reinforcing frame 11 made of a synthetic resin plate is bent into a substantially U-shape on the outer surface of the periphery of the upper end opening of the school bag body 1. It is assumed that the reinforcing member 10 is attached to the reinforcing frame 11 and the reinforcing member 10 is provided along the reinforcing frame 11. That is, as shown in FIGS. 3 and 4, the reinforcing frame 11 has fastening portions 11a, 11a with the upper ends of the left and right gusset portions 2, 2 and a fastening portion 11b with the upper end portion of the front partitioning portion 3. And the linear reinforcing material 10 made of a shape memory alloy is fitted into the groove 12 formed in the fastening portion 11b so that the reinforcing material 10 is provided along the fastening portion 11b. I am trying. Then, the front cloth 13 is wrapped around the reinforcing frame 11, the lower side is sewn to the outer surface of the peripheral edge of the upper end opening as it is, the covering cloth 14 is further covered from the upper side, and the upper side of the peripheral edge of the upper end opening is covered. It is sewn on the outside. The reinforcing frame 11 has only a fastening portion 11b with the upper end portion of the front partition portion 3, and a linear reinforcing material 10 made of a shape memory alloy is provided along the fastening portion 11b. It may be something.

Since the reinforcing material 10 is a shape memory alloy composed of nickel / titanium alloy, copper / zinc / aluminum alloy, iron / manganese / silicon alloy, etc., the reinforcing material 10 is not subjected to a load exceeding the elastic limit. Even if the periphery of the upper end opening of the school bag body 1 is deformed due to this, if the shape restoration temperature of the shape memory alloy is set to a temperature slightly higher than the ambient temperature (for example, about 35 ° C), hot air from a dryer, etc. The periphery of the upper end opening of the school bag body 1 can be easily returned to its original shape by spraying and heating.

In the school bag of the present invention, the reinforcing material 10 made of a shape memory alloy is arranged along the reinforcing frame 11, and the reinforcing frame 11 is fixed to the periphery of the upper end opening of the school bag body 1. Alternatively, the reinforcing material 10 may be directly attached to the periphery of the upper end opening of the school bag body 1 without using the reinforcing frame 11.

[0018]

[Effect of device]

 The school bag of this invention is configured as described above, and even if the school bag 1 is deformed by a load exceeding the elastic limit of the reinforcing material 10, the upper end opening peripheral edge of the school bag body 1 can be easily returned to the original shape. At the same time, the reinforcing material 10 made of the shape memory alloy does not penetrate through the peripheral edge of the upper end opening of the land cell body 1, and is durable and safe in use, and the appearance is not deteriorated.

[Brief description of drawings]

FIG. 1 is a perspective view of a school bag body of a school bag of the present invention.

FIG. 2 is a partially cutaway perspective view showing an enlarged part of the periphery of the upper end opening of the school bag body of the school bag of the present invention.

FIG. 3 is a perspective view showing a state in which the reinforcing material in the school bag of the present invention is arranged along the reinforcing frame.

FIG. 4 is a perspective view showing a state in which a reinforcing member and a reinforcing frame are separated in the school bag of the present invention.

[Explanation of symbols]

 1 School bag body 3 Front partition 10 Reinforcement material 11 Reinforcement frame 12 Groove

Claims (6)

[Scope of utility model registration request] 1. A straight reinforcing material (10) made of a shape memory alloy is fixed to an upper end of a front partition (3) forming a peripheral edge of an upper opening of the school bag body (1). School bag to do. 2. The reinforcing material (10) is arranged along a long reinforcing frame (11) made of a synthetic resin plate fixed to the periphery of the upper end opening of the school bag body (1). The school bag according to claim 1, which is characterized in that. 3. A long reinforcing frame (11) made of a synthetic resin plate in which the reinforcing material (10) is bent and fixed to the periphery of the upper end opening of the school bag body (1) in a substantially U shape. The school bag according to claim 1, which is a combination of the two. 4. The reinforcing material (10) is fitted in a groove (12) formed in an elongated reinforcing frame (11) made of a synthetic resin plate fixed to the peripheral edge of the upper end opening of the school bag body (1). The school bag according to claim 1, wherein the school bag is fitted along the reinforcing frame (11) by being inserted. 5. The reinforcing material (10) is formed on a long reinforcing frame (11) made of a synthetic resin plate which is bent and fixed to the peripheral edge of the upper end opening of the school bag body (1) in a substantially U-shape. This reinforcing frame (11) is fitted into the groove (12)
The school bag according to claim 1, characterized in that 6. The school bag according to claim 1, wherein the shape restoring temperature of the shape memory alloy is set to a temperature slightly higher than the ambient temperature.