KR101045164B1 - Bags, bag bodies and manufacturing methods thereof - Google Patents

Abstract

Disclosed is a method of manufacturing a bag body capable of making a bag body capable of maintaining a predetermined shape using a sponge. The method of manufacturing the bag body includes applying an adhesive to both surfaces of the sponge, attaching a first fabric to one surface of the sponge, attaching a second fabric to the other surface of the sponge, and the first fabric And a second fabric and a sponge are put into a mold and pressurized and heated to form a molding for forming a bag body.

Bag body, bag, backpack, sponge, suspenders

Description

Bag and bag body for same and manufacturing method thereof {Bag, bag body for the bag and method for making the bag body}

The present invention relates to a bag, a bag body for the same, and a method for manufacturing the same, and in particular, a bag that can be suitably applied to a student backpack (backpack) as well as a bag and a bag body for the same, and a method for manufacturing the same. It is about.

In general, the bag is configured to accommodate the necessary things and is composed of a bag body that can be opened and closed with a zipper and the handle installed on the top of the bag body and suspenders installed on the back of the bag body. In addition, it is possible to install additional handles and wheels in the bag so that the handle can be used to drag the bag if necessary.

The bag body of such a conventional bag is made of a fabric material in its entirety, or a frame made of a plastic of a hard material at the bottom, and is connected to the fabric material on the frame is made in a form surrounding a predetermined space.

The present inventors have a problem that the conventional bag as described above, when there is no contents inside the bag body, not only the bag body is distorted, but also the top part of the bag body is bent sideways and falls sideways when placed on the floor. I found this to be.

In addition, a bag having a bag body installed with plastic at the bottom may increase the weight of the bag, which may adversely affect the growth of children in the growing season, and it is difficult to make the bag body because the connection work between plastic and fiber is difficult. I also found a problem.

It is an object of the present invention to provide a bag in which the bag body can maintain a predetermined shape without using plastic.

Another object of the present invention is to provide a bag that is light and can maintain a certain shape of the bag body.

Another object of the present invention is to provide a bag that is easy to make.

Still another object of the present invention is to provide a bag body used to make the bag of the present invention.

Still another object of the present invention is to provide a method for manufacturing a bag body according to the present invention.

Bag body according to the present invention is a bag body to form an internal space for putting the article, the compressed sponge layer is compressed to maintain a predetermined shape, the first fabric layer attached along the outer surface of the compressed sponge layer and And a second fabric layer attached along the inner surface of the compressed sponge layer.

The bag body is configured to include a first molding to form a shape of one side of the bag body, a second molding disposed facing the first molding to form the shape of the other side of the bag body,

The first molding and the second molding are preferably configured to face each other through a connecting means.

The connecting means may be provided with a connection zipper.

An inclined opening is formed in the bag body, and the opening may be a lid that can be opened and closed through a zipper.

The compressed sponge layer is preferably made by compressing a sponge made of EVA.

The bag according to the present invention has a configuration including a bag body and a handle or suspenders installed on the bag body according to the present invention.

In the method of manufacturing a bag body according to the present invention, in the method of manufacturing a bag body, applying an adhesive to both surfaces of the sponge, attaching a first fabric to one surface of the sponge, a second on the other surface of the sponge Attaching the fabric and the first fabric and the second fabric and the sponge is put into a molding die and pressurized and heated to form a molding for making a bag body.

The sponge is preferably made of EVA.

In the forming step, it is preferable to heat to 130 ~ 170 ℃ to a pressure of 1 to 3 tons.

Preferably, the bag body according to the present invention is to make a first molding constituting one side of the bag body and a second molding constituting the other side of the bag body, respectively,

It is preferable to include a step of making the bag body by connecting the first molded article and the second molded article.

The connection is preferably connected to the edge of the first molding and the second molding with a fiber material.

In addition, the connection is easy to connect the connection work by installing one side of the connection zipper along the edge of the first molding and the other side of the connection zipper along the edge of the second molding. .

Preferably, the first fabric is a PU fabric.

Bag and bag body according to the invention is very light weight.

According to the present invention, it is possible to provide a bag that is light in weight compared to the case of making a bag using plastic, the bag body can maintain a certain shape.

The bag body according to the present invention has a certain rigidity and always maintains a constant shape, so that things such as books contained inside do not sag to either side, so that the load is evenly transmitted from side to side and is easy to carry or carry on the shoulder.

In addition, according to the invention it is easy to make a bag, suitable for mass production.

In the case of using a zipper as a connecting means of the first molding and the second molding, the connecting operation is easily made.

According to the bag body manufacturing method of the present invention, since the first molded article and the second molded article are connected to each other, the bag main body of various shapes can be easily made.

When the first molded article and the second molded article are each made of two or more, a combination of the bag bodies of various models can be provided.

According to the method of the present invention, the bag body having a simple shape can be made integral.

If only part of the bag body is damaged, it can be easily replaced and repaired.

The back of the main body of the bag is equipped with a cushioning material to have the surface of the S-shaped line, such as the back of the human body is easy to carry around.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

1 is a side view of the bag according to the present invention, Figure 2 is a perspective view showing a state of opening the bag body and open the bag of Figure 1, Figure 3 is a perspective view showing the inner state of Figure 2 bag, Figure 4 Sectional drawing according to II of 1.

As shown in Figures 1 to 4, the bag 100 according to the present invention has a bag body 110, which is made of a sponge, not plastic, as a main material and has rigidity and maintains a predetermined shape. Accordingly, the bag 100 according to the present invention may not only be light but also maintain a predetermined shape without the bag body 110 being crushed even without filling an object such as a book.

As shown, the bag main body 110 includes a first molding 120 forming a part of a half of the bag main body 110 and a second molding 130 forming a part of the opposite half of the bag main body 110. The first molding 120 and the second molding 130 are disposed to face each other. Accordingly, the first molded part 120 forms one side shape of the bag body 110, and the second molded body 130 forms the other side shape of the bag body 110.

Referring to FIG. 4, the first molded part 120 and the second molded part 130 constituting the bag body 110 according to the present invention are compressed sponge layers 121 and 131 and a first raw material layer attached to an outer surface thereof. (122, 132) and the second fabric layers (123, 133) attached to the inner surface. It is preferable that the first fabric layers 122 and 132 be made of PU fabric, and the second fabric layers 123 and 133 are made of general fiber fabric, and intarok fabric is preferable. The manufacturing process of the first molding 120 and the second molding 130 will be described in more detail later.

As shown, the first molding 120 and the second molding 130 are connected to each other through the connecting means 140. The connecting means 140 is to maintain the overall shape of the bag body 110 by connecting the first molding 120 and the second molding 130 to each other, the size of the bag body 110 as needed As shown in FIG. 2, it is preferable to comprise using the fiber material 141 of a flexible material so that adjustment may be carried out. Of course, leather, artificial leather, synthetic resin fabric, etc. may be used instead of the fiber material.

In order to facilitate the connection between the first molding 120 and the second molding 130, a part of the connecting zipper 143 is installed along the edge of the first molding 120, and the second molding 130 is installed. Install the remaining part of the connection zipper 143 along the edge of the) can be configured to connect to each other through the connection zipper (143). In some cases, after connecting the first molding 120 and the second molding 130 through the connecting zipper 143, the connecting zipper 143 is engaged to prevent the opening of the connecting zipper 143. Heat can be applied to the parts to allow them to fuse together.

In some cases, it is possible to connect only with flexible materials such as textile materials, leather, artificial leather, synthetic resin fabric without a zipper for connection, and furthermore, through the fastener, fusion, and stitching of metal, the first molding 120 and the second molding Direct connection 130 may be configured integrally.

As shown, the size adjustment zipper 150 is installed to adjust the size of the bag body 110 along the edges of the first molding 120 and the second molding 130 to the outside of the connecting means 140. .

A cushioning material 125 is attached to an outer backrest portion of the first molding 120. The shock absorbing material 125 may be disposed along an approximately S-shaped line, such as a human body, to facilitate carrying around. In addition, the bag body 110, the suspenders 161 and the handle 163 is attached.

In addition, an opening 111 is formed at the upper side of the bag body 110 to allow a book or the like to be placed inside the bag body 110, and an opening 111 is formed at one side of the opening 111 through a zipper 112. Lid 113 that can be opened and closed is installed.

Referring to FIG. 3, inside the bag body 110, pockets 165 for storing necessary items such as writing utensils, erasers, and note papers are installed, and a compartment band dividing the inner space of the bag body 110 back and forth ( 167 is provided. The partition strip 167 is intended to sort things in the interior space of the bag body 110, it is preferable to configure the elastic band. When the partition strip 167 is provided in this way, a heavy book or the like can be attached to the back of the person carrying the bag 100, and other light objects can be accommodated in the opposite accommodation space. When a heavy object is attached to the back of the person carrying the bag 100, the bag 100 may be more easily carried.

In particular, in the case of a child, if a heavy object sags backwards rather than sticks to the back, the center of gravity of the bag 100 is moved backwards, so that it is inconvenient to carry the bag 100 and may adversely affect the posture and growth of the child. This can be avoided.

5 is a process chart for explaining a process for making a bag body according to the present invention, Figure 6 is a conceptual diagram for explaining an example of a process for making a bag body according to the present invention, Figure 7 is made by the method of the present invention 8 is a perspective view of a first molded article and a second molded article, FIG. 8 is a perspective view of a first molded article and a second molded article connected to each other by a connecting means, and FIG. 9 is a perspective view of a bag main body according to the present invention.

First, according to the shape of the bag body 110 is designed according to the mold, that is, to prepare a mold for making the first molding 120 and the mold for making the second molding 130, respectively (steps S1, S11 ). Of course, when making the 1st molded object 120 and the 2nd molded object 130 the same shape, you may have only one type of shaping | molding die. Then, the EVA sponge adhesives 174 and 175 on both sides of the sponges 121a and 131a while supplying the EVA (Ethylene Vinyl Acetate) sponges 121a and 131a wound in rolls through the rollers 172 as shown in FIG. 6. Apply (S2, S12). Instead of EVA sponges, other types of synthetic sponges made by foaming synthetic resins may be used.

Then, the first fabrics 122 and 132 and the second fabrics 123 and 133 are supplied to both sides of the EVA sponges 121a and 131a, and the first fabrics 122 and 132 are provided on both sides of the EVA sponges 121a and 131a. The second fabrics 123 and 133 are attached (S3 and S13), respectively. Then, the EVA sponges 121a and 131a having fabrics attached on both sides thereof were cut into appropriate lengths, and the first molded part 120 and the first molded part 177 as shown in FIG. The first molded part 120 and the second molded part 130 are molded into each of the two moldings 130, or the EVA sponges 121a and 131a are continuously supplied to the respective molding dies 177, respectively. The molding 130 is molded (S4, S14). The EVA sponges 121a and 131a at the time of molding the first molded part 120 and the second molded part 130 are based on 1 to 3 tons, preferably 2 tons, depending on the degree of foaming of the sponge or the thickness of the target value after molding. It is desirable to pressurize and mold in the range of ± 0.5 ton. In addition, in order to increase the moldability of the EVA sponges 121a and 131a, it is preferable to heat the EVA sponges 121a and 131a to 130 to 170 ° C, preferably to a temperature in the range of ± 10 ° C based on 150 ° C during molding. . What is necessary is just to set it as 10-20 minutes as a molding time, and about 15 minutes are suitable.

After demolding (S5, S15), if there is a fabric that protrudes longer than necessary, it is cut and trimmed, and as shown in FIG. 7, the first and second fabrics 122, the outer and inner surfaces of the compressed sponges 121 and 131, as shown in FIG. The first molding 120 and the second molding 130 to which the 132, 123, and 133 are attached are obtained. Then install the connecting means 140 such as the fiber material 141, the zipper 143 along the edge (S6, S16).

Then, as shown in FIG. 8 through the connecting means 140, the first molding member 120 and the second molding member 130 are connected to each other, and one side edge of the opening 111 can be opened and closed with a zipper 112. The bag 113 is installed to make the bag body 110 (S17), and a handle 163, suspenders 161, a compartment strip 167, a pocket 165 and the like according to the present invention by installing a bag according to the present invention. Complete 100 (S18).

In the above, the bag body 110 is illustrated by connecting the first molded part 120 and the second molded part 130 to each other, but the shape of the bag body is relatively simple or does not interfere with the use of one molding frame. If it is, it can be made by molding the bag body integrally by the process of steps S1 to S6 or steps S11 to S16 described above.

The present invention has the potential to be used to make a bag and a bag body for maintaining the shape even if the interior is empty.

1 is a side view of a bag according to the present invention,

Figure 2 is a perspective view showing a state in which the cover of the bag opening and opening the bag body of Figure 1,

3 is a perspective view showing an internal state of the bag of Figure 2,

4 is a cross-sectional view taken along line II of FIG. 1;

5 is a process chart for explaining a process of making a bag body according to the present invention,

6 is a conceptual diagram illustrating an example of a process of making a bag main body according to the present invention;

7 is a perspective view of a first molding and a second molding made according to the method of the present invention;

8 is a perspective view of a state in which the first molding and the second molding are connected to each other by connecting means;

9 is a perspective view of the bag body according to the present invention.

Explanation of symbols on the main parts of the drawings

100: bag 110: bag body

111: opening 113: lid

120: first molded article 121, 131: compressed sponge layer

122, 132: first fabric 123, 133: second fabric

130: second molding 140: connecting means

143: zipper for connection 150: zipper for size adjustment

165: pocket 167: compartment strip

Claims (13)

delete In the bag body to form an interior space for things, A compressed sponge layer in which the sponge is compressed to maintain a predetermined shape; A first fabric layer attached along an outer surface of the compressed sponge layer; And A second fabric layer attached along an inner surface of the compressed sponge layer, The bag body is configured to include a first molding to form the shape of one side of the bag body, a second molding disposed facing the first molding to form the shape of the other side of the bag body, The first molded article and the second molded article is characterized in that the bag body is configured to face each other through a connecting means. The bag body according to claim 2, wherein the connection means is provided with a connection zipper. The bag body of claim 2, wherein an inclined opening is formed in the bag body, and the opening is opened and closed by a zipper. The bag body of claim 2, wherein the compressed sponge layer is made by compressing a sponge made of EVA. Bag body according to any one of claims 2 to 5; And Bag comprising a handle or suspenders installed on the bag body. In the manufacturing method of the bag body, Applying an adhesive to both surfaces of the sponge; Attaching a first fabric to one surface of the sponge; Attaching a second fabric to the other surface of the sponge; And And inserting the first fabric, the second fabric, and the sponge into a mold to form a molding for making the bag body by pressing and heating. A first molding constituting one side of the bag body and a second molding constituting the other side of the bag body are made, Bag body manufacturing method comprising the step of making the bag body by connecting the first molding and the second molding. 8. The method of claim 7, wherein the sponge is made of EVA. The method of claim 8, wherein in the molding step, the bag body manufacturing method characterized in that the molding by heating to 130 ~ 170 ℃ at a pressure of 1 to 3 tons. delete The method of claim 7, wherein the connection is a bag body manufacturing method, characterized in that connecting the edge of the first molding and the second molding with a fiber material. According to claim 7, The connection is connected to each other through the connection zipper by installing one side of the connection zipper along the edge of the first molding and the other side of the connection zipper along the edge of the second molding Bag body manufacturing method characterized in that. 9. The method of claim 8, wherein the first fabric is a PU fabric.

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