JPH0354572Y2 - - Google Patents

Description

[Detailed description of the invention] [Technical field of the invention] This invention is an improved invention regarding a student bag for commuting to school.

[Technical background of the invention and its problems]

As is well known, this type of student bag has a cover piece commonly called a ``crown'' that is continuous to the rear body wall and is attached to the top of the bag body. It has a structure that is bent and connected to the front body wall with a buckle, box lock, etc., and the material of the cover piece has a gap between the outer skin and the inner skin to give tension to the wall and prevent deformation. In many cases, a three-layer structure in which cardboard such as chipboard or a low-foam synthetic resin board is sandwiched as a core material is often used.

However, unlike the front and rear body walls of the bag body, the above-mentioned cover piece is bent and stretched many times each time the bag is opened and closed. The core material begins to deteriorate, and as the core material cracks and breaks, the outer skin wrinkles and the inner skin is damaged.Also, the materials of the outer skin and the core material are significantly different, Because there is a large difference in the rate of expansion and contraction between materials in response to heat and moisture, the outer skin is prone to deformation such as sagging and waving, and if cheap vinyl leather is used for the lining, this area will also be affected. Of course, there was the problem that fading and material deterioration were more likely to occur due to changes in the thermal environment.

[Purpose of invention]

This invention was devised to deal with the above-mentioned problem, and its purpose is to prevent wrinkles from forming on the outer skin and lining of the cover piece even if the bag is used for a long period of time. To provide an ideal student bag that is free from tearing, peeling, deformation, etc., easy to handle, and extremely durable.

[Summary of the idea]

The student bag according to the present invention was devised to achieve the above-mentioned object, and the bent part of the cover piece that is continuous with the rear body wall of the main body is made of thick artificial leather and the back is made of woven vinyl leather. It is characterized by being made of a material that is bonded to the skin and fixed together.

[Example of idea]

Hereinafter, the structure of the student bag according to the present invention will be specifically explained with reference to the drawings of the embodiment. In the drawings, reference numeral 1 indicates the main body of the student handbag, 2 indicates the front body wall of the main body 1,
3 is a rear body wall, 4 is a gore part, 5 is a cover piece continuous to the upper part of the rear body wall 3, 6 is a handle attached to the cover piece 5, 7 is a buckle, and 8 is a box lock. Although the external shape and structure of each part are the same as those of conventional school bags, the rear body wall 3 and the cover piece 5 continuous to its upper part have a cross-sectional configuration as shown in FIG.

That is, the rear body wall 3 and the cover piece 5 are cut into one continuous piece as the rear body of the bag during manufacture, and the outer skin 11 has a material with excellent water resistance, weather resistance, abrasion resistance, and bending/stretching resistance. We use high-quality artificial leather (for example, Kuraray Co., Ltd., product name "Clarino", 8 Umeda, Kita-ku, Osaka), which is thicker (approximately 2.2 mm) than the normal thickness (approximately 1.1 mm), and the lining is 12 is made of vinyl chloride leather with a woven fabric pasted on the adhesive surface, and the outer skin 11 and the inner skin 12 are bonded together without interposing a paper core or other core material between the outer skin 11 and the inner skin 12. The material used is one that is directly fixed together with synthetic adhesive.

In addition, in the case of the student bag according to this embodiment, a pocket is formed inside the rear body wall 3 for storing thin items, and in order to impart rigidity to the rear body wall 3, a pocket is formed on the inside of the body wall 3. A partition wall 9 made of leather and an auxiliary piece 13 are attached to the inside of the covering piece 5, and both 9, 13 are attached.
Opening/closing opening 14 with a slide fastener on the opposite edge of the
However, it is sometimes used alone without such a pocket. In addition, at the tip of the cover piece 5, in order to increase the mounting strength of the handle 6 and the box lock 8, and to facilitate the locking/unlocking operation.
A core material 15 may be partially interposed between the outer skin 11 and the inner skin 12 as shown in FIG. Only the bent part 10 where the outer skin 11 and the inner skin 12 are continuous forms a part made of a material in which only the outer skin 11 and the inner skin 12 are fixed together.

[Effect of idea]

As described above, in the student bag of the present invention, the bent part of the cover piece that is continuous with the rear body wall of the main body is bonded to the outer skin made of thick artificial leather and the inner skin made of PVC leather with woven fabric. It is made of a material that is fixed to one piece, and has sufficient shape retention stability for use without the need to insert a core material such as cardboard such as a chip ball or a low-foam synthetic resin board between the outer skin and the lining. Of course, the bending part of the cover piece has both moderate flexibility and strong resistance to bending and stretching, so it not only allows smooth opening and closing of the bag, but also allows it to withstand repeated opening and closing. , the outer skin and lining of the area will not wrinkle or crack. In addition, in the case of this invention, since there is no core material of different material between the outer skin and the lining, there is no risk of deformation of the outer skin such as sagging or waving due to environmental changes such as heat and humidity. Since fading of the lining and material deterioration are unlikely to occur, it has excellent durability and can maintain its original quality for a long period of time.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing a specific embodiment of the student bag according to the present invention, Fig. 2 is a vertical cross-sectional view of the main part showing the structure of the rear body wall and the cover piece continuous thereto, and Fig. 3 is the same. FIG. 7 is a vertical sectional view of a main part showing another similar embodiment. 1... Main body, 2... Front body wall, 3... Rear body wall, 4... Gossa part, 5... Covering piece, 6... Handle,
7... Buckle, 8... Box lock, 9... Bulkhead, 10...
Bent part, 11... Outer skin, 12... Back skin, 13...
Auxiliary piece, 14... Opening/closing opening, 15... Core material.

Claims (1)

[Scope of utility model registration request] The bent part 10 of the cover piece 5 that is continuous with the rear body wall 3 of the main body 1 is formed of a material in which a skin 11 made of thick artificial leather and a back skin 12 made of polyvinyl chloride leather with woven fabric are bonded together and fixed together. A student bag characterized by: