KR102541378B1 - Method of bonding fabric to hard case and hard case bag made using the same - Google Patents

Abstract

The present invention relates to a method of combining fabric with a hard case and a hard case bag manufactured using the same, and more particularly, to sewing heterogeneous items such as fabric or leather to a hard case made of a carbon fiber composite material having high stiffness and high elasticity. In combination, by optimizing and presenting components and sewing methods for sewing, productivity and price competitiveness of products can be greatly improved as mass production becomes possible.
In particular, the present invention proposes a method for greatly improving the tension of the fabric in the process of combining the hard case of the carbon fiber composite and the fabric, so that the shape can be maintained continuously even when wide fabrics are combined. By doing so, since the design of the fabric combined with the hard case can be applied in various ways, products with various designs can be manufactured.
Therefore, it is possible to improve reliability and competitiveness in the bag field and bag manufacturing field, particularly in the field of manufacturing a bag composed of a hard case and the field of hard case and fabric bonding technology, as well as similar or related fields.

Description

Method of bonding fabric to hard case and hard case bag made using the same {Method of bonding fabric to hard case and hard case bag made using the same}

The present invention relates to a method of combining fabric with a hard case and a hard case bag manufactured using the same, and more particularly, to sewing heterogeneous items such as fabric or leather to a hard case made of a carbon fiber composite material having high stiffness and high elasticity. In combination, by optimizing and presenting components and sewing methods for sewing, productivity and price competitiveness of products can be greatly improved as mass production becomes possible.

In particular, the present invention proposes a method for greatly improving the tension of the fabric in the process of combining the hard case of the carbon fiber composite and the fabric, so that the shape can be maintained continuously even when wide fabrics are combined. By doing so, it relates to a method of combining fabric with a hard case capable of producing products of various designs and a hard case bag manufactured using the same.

In general, a bag is intended to store and protect necessary items inside, and may be classified into a hard case and a soft case according to the material of the bag body.

For example, the body of a bag of a soft case is mainly composed of fabric.

However, since the exterior of such a soft case bag is easily deformed, there is a problem in that internal items may be damaged due to an external shock or the like.

As another example, a bag of a hard case has a body made of a material having a certain elasticity and rigidity, and compared to a bag of a soft case, items inside can be safely stored even against external impact.

However, in the case of a hard case, in order to configure a zipper to open and close the bag, the fabric part of the zipper and the hard case must be combined. However, this method has a problem in that the manufacturing cost of the product increases, productivity decreases, and there is difficulty in mass production.

Specifically, the following prior art document, Republic of Korea Patent Registration No. 10-1368507, 'hard case bag engraved with animal characters' (hereinafter referred to as 'prior art') is injection molded into a certain shape on the front of the bag body. By configuring the hard case, it is to protect the contents inside the bag.

However, in the prior art, the material of the hard case is described as wood, fabric, leather, silicone, rubber, synthetic resin, etc., but fabric, leather, rubber, etc. correspond to the soft case, and wood, synthetic resin, etc. corresponding to the hard case There is no description of how or how to connect the fabric to the structure.

As a result, it can be seen that the prior art contains the problems of the hard case as it is, since no specific technology is presented for the combination of the hard case and the fabric, which was previously described as a problem of the hard case.

In addition, since it is difficult to maintain the appearance of the fabric part combined with the hard case, the part occupied by the fabric part in the structure of the entire bag is only a small part, which causes restrictions to produce products with various designs.

For example, in the case of a suitcase composed of a hard case, all other parts except for the zipper part configured to open and close the bag are composed of a hard case, and the appearance of the bag is entirely dependent on the hard case part, so the diversity of design is limited. It is easy to see that there is

Korean Registered Patent Publication No. 10-1368507 'Hard case bag engraved with animal characters'

In order to solve the above problems, the present invention proposes optimized components and sewing methods for sewing in combining heterogeneous items such as fabric or leather in a hard case of high stiffness and high elasticity carbon fiber composite material. By doing so, it is an object of the present invention to provide a method for coupling fabric to a hard case that can easily combine a hard case and fabric, and a hard case bag manufactured using the same.

In addition, the present invention proposes a method of greatly improving the tension of the fabric in the process of combining the hard case of the carbon fiber composite material and the fabric, so that the shape can be maintained continuously even when wide fabrics are combined. The purpose of the present invention is to provide a method of combining fabric with a hard case capable of producing products of various designs and a hard case bag manufactured using the same.

In particular, in the present invention, by undergoing a double sewing process in the process of combining the hard case and fabric of the carbon fiber composite material, the waterproof function can be greatly improved, and the edge of the hard case is exposed to prevent injury to the user. It is an object of the present invention to provide a method of combining fabric with a hard case that can be prevented in advance and a hard case bag manufactured using the same.

In order to achieve the above object, a method for coupling a fabric to a hard case according to the present invention includes a component arrangement step of arranging the hard case and at least one inner surface of the fabric to be exposed to the outside; A first sewing step of sewing at least one fabric to the coupling part of the hard case; A second sewing step of closing and sewing the firstly sewn portion of the hard case; and an internal and external reversal step of inverting at least one fabric sewn on the basis of the hard case so that outer surfaces of the hard case and the fabric are exposed to the outside.

In addition, in the component arrangement step, the outer fabric of the fabric is formed and disposed in a wide width, and in the inner and outer reversal step, in the process of turning the fabric over, the outer fabric turned over according to the expansion deformation of the curved surface is tensioned in vertical and horizontal directions ( Tension) can be improved, so that the shape of the wide width can be maintained after inversion.

In addition, the component arranging step may include a lining arranging step of arranging such that the inner surface of the lining is exposed on the inner surface of the hard case; An outer fabric arrangement process of arranging an outer surface of the outer surface of the hard case to be exposed along the edge of the hard case; It may include; and a coupling webbing arrangement process of disposing at least one coupling webbing (Webbing) along the edge of the hard case.

In addition, at least one of the first sewing step and the second sewing step uses a high-strength sewing thread including at least one of Aramid and Kevlar and industrial high carbon steel needles, and the hard case and at least One fabric can be sewn.

In addition, at least one of the primary sewing step and the secondary sewing step may be sewn by adjusting the sewing interval to 4mm to 6mm.

In addition, at least one of the first sewing step and the second sewing step may be sewn by adjusting the speed of the sewing machine to 180 rpm to 420 rpm.

In addition, the hard case is made of a composite material of a weaving method using carbon fiber, and an omission hole in which at least one of the weft and warp yarns is missing at regular intervals is formed in the coupling part, and the first sewing step and the second In at least one step of the sewing step, the hard case and the fabric may be sewn using the missing hole.

In addition, the coupling part of the hard case is formed to be inclined from the edge to the center based on the outer surface of the hard case, and in the component arrangement step, the fabric is arranged along the inclined surface of the coupling part of the hard case, In the inside and outside inversion step, the inverted fabric may be formed in a vertical direction on the hard case.

In addition, in the process of inverting the inside and outside, the fabric may be formed such that tension is improved in the upward and downward curved direction while maintaining the curved surface along the sewing portion in the process of inverting the inside and outside of the fabric.

In addition, the edge portion of the hard case is formed as a curved surface, and in the inside-outside reversal step, the fabric is bent along the curved surface of the edge portion in the process of inverting its inside and outside, tension in the horizontal direction ( Tension) can be formed to improve.

In addition, in the component arrangement step, the hard case is disposed with an edge upward, the coupling portion of the hard case is formed to be inclined toward the center toward the bottom direction, and the fabric gradually increases its width along the inclined surface of the coupling portion. It is arranged to be narrowed, and in the inside and outside reversal step, when the fabric is turned over, the overturned fabric may be formed so that the narrowed part expands while facing the vertical direction to the hard case to improve tension.

In addition, the hard case bag manufactured using the method of coupling the fabric to the hard case according to the present invention, the hard case forming at least a part of the outer appearance of the bag; and an outer fabric that is folded and coupled to the outer edge of the hard case.

In addition, the hard case and the outer fabric are sewn and coupled by a sewing thread, and the outer fabric may be configured to be folded to cover the sewing thread.

In addition, a lining is configured on the inside of the hard case, an outer fabric and a coupling webbing are sequentially configured on the outer surface of the coupling portion of the hard case, and the lining, the hard case, the outer fabric, and the coupling webbing are sequentially configured in the coupling portion of the hard case. It is sewn by a primary sewing thread, and the outer fabric may be configured to be folded while being supported by the primary sewing thread.

In addition, the finishing webbing is configured to cover the edges of the lining, hard case, outer fabric and coupling webbing sewn by the primary sewing thread at the coupling part of the hard case, and both sides of the finishing webbing are sewn by the secondary sewing thread, The outer fabric may be configured to be folded while being supported by the primary and secondary sewing threads.

By means of the above solutions, the present invention optimizes and presents components and sewing methods for sewing in combining heterogeneous items such as fabric or leather in a hard case of high stiffness and high elasticity carbon fiber composite material. , it has the advantage of being able to easily combine the hard case and the fabric.

Through this, the present invention has the advantage of greatly improving productivity and price competitiveness of products as mass production of products using a hard case becomes possible.

In particular, the present invention proposes a method for greatly improving the tension of the fabric in the process of combining the hard case of the carbon fiber composite and the fabric, so that the shape can be maintained continuously even when wide fabrics are combined. There are advantages to having it.

Through this, the present invention has the advantage of being able to manufacture products with various designs because the design of the fabric combined with the hard case of the carbon fiber composite material can be applied in various ways.

In addition, the present invention prevents the durability of the product from deteriorating due to damage to the sewing thread during use by overturning the outer fabric of the coupling part in the manufacturing process of the product so that the sewing thread used to sew each component is covered. Of course, there is an effect of improving design aesthetics.

In addition, the present invention can secure sufficient tension while maintaining a constant appearance of the fabric part, and in particular, by further improving the tension of the edge part, the shape of the outer fabric is stably maintained and the quality of the product is improved It has the advantage of being able to safely protect the items stored inside while securing sufficient internal space.

In particular, in the present invention, by undergoing a double sewing process in the process of combining the hard case and fabric of the carbon fiber composite material, the waterproof function can be greatly improved, and the edge of the hard case is exposed to prevent injury to the user. There are advantages to avoiding it.

Therefore, it is possible to improve reliability and competitiveness in the bag field and bag manufacturing field, particularly in the field of manufacturing a bag composed of a hard case and the field of hard case and fabric bonding technology, as well as similar or related fields.

1 is a flow chart showing one embodiment of a method of coupling a fabric to a hard case according to the present invention.
FIG. 2 is a flowchart illustrating a specific embodiment of step 'S100' shown in FIG. 1 .
3 to 5 are diagrams for explaining in detail the process of combining the hard case and the fabric by FIG.
6 is a partially enlarged view showing an embodiment of a hard case applied to FIG. 1 .
Figure 7 is a photograph showing one embodiment of the product manufactured by Figure 1.
8 is a partially enlarged picture showing similar conventional products.
9 is a partially enlarged cross-sectional view showing an embodiment of the hard case bag manufactured by FIG. 1 .

A method of combining fabric with a hard case according to the present invention and an example of a hard case bag manufactured using the same can be applied in various ways, and hereinafter, the most preferred embodiment will be described with reference to the accompanying drawings. .

1 is a flow chart showing one embodiment of a method of coupling fabric to a hard case according to the present invention, and FIG. 2 is a flow chart showing a specific embodiment of step 'S100' shown in FIG.

Referring to Figure 1, the method of coupling the fabric to the hard case includes a component arrangement step (S100), a primary sewing step (S200), a secondary sewing step (S300), and an inner and outer reversal step (S400).

First, the components are arranged so that the inner surface of the hard case and at least one fabric are exposed to the outside (S100), and at least one fabric is sewn to the coupling part of the hard case (S200).

For example, as shown in FIG. 2, the component placement step (S100) is the lining placement process (S100) of arranging the inner surface of the lining to be exposed on the inner surface of the hard case, along the edge of the hard case, outside the hard case. It may include an outer fabric arranging process (S120) of arranging so that the inner surface of the outer fabric is exposed on the surface, and a coupling webbing arranging process (S130) of disposing at least one webbing for coupling along the edge of the hard case.

In addition, various fabrics such as waterproof fabric may be arranged according to the needs of those skilled in the art.

In this way, in a state where the inner surface of each component is exposed, it is possible to combine each component through sewing (S200).

At this time, as described above, some difficulty may occur in combining the hard case and the fabric by sewing.

Therefore, the present invention uses a high-strength sewing thread containing at least one of Aramid and Kevlar and an industrial high-carbon steel needle to combine the fabric with the hard case of the carbon fiber composite material by sewing, It is preferable to sew at least one fabric and, of course, this process can also be applied in the secondary sewing step (S300).

On the other hand, in the process of performing the first sewing step (S200), if the sewing interval is set to 2 mm, the same as the general coupling between fabrics, the structural strength of the carbon fiber composite material may be lowered and damage such as cracking may occur.

Therefore, in the process of performing the first sewing step (S200), it is preferable to adjust the sewing interval to 4 mm to 6 mm, considering that the fabric is bonded to the hard case of the carbon fiber composite rather than the general fabric.

In addition, when the speed of the sewing machine is set to 1000 rpm to 2000 rpm, which is the same as normal coupling between fabrics, the coating surface of the carbon fiber composite material and the carbon fiber may be separated due to the rapid movement of the needle.

In addition, damage may occur due to broken needles, etc., and injuries may occur to the eyes of a worker due to fragments of the needles generated at this time.

In order to prevent this, in the present invention, it is preferable to sew by adjusting the speed of the sewing machine to 180 rpm to 420 rpm.

Through this process, if the fabric is directly sewn on the hard case of the carbon fiber composite, the material of the fabric can be applied in various ways, and design elements and aesthetics can be improved by additionally combining leather. , In addition to this, various materials such as waterproof fabric can be applied.

When the first sewing step (S200) is completed, the second sewing step (S300) is performed by closing the first sewn portion of the hard case in order to prevent the edge portion of the hard case from being exposed.

Finally, by turning over at least one fabric sewn on the basis of the hard case so that the outer surface of the hard case and the fabric is exposed to the outside (S400), a product in which the fabric is combined with the hard case of the carbon fiber composite material by the sewing method can be manufactured

In particular, the present invention arranges a wide outer fabric in the component arrangement step (S100) described above, and then, in the process of turning the fabric over, the tension of the overturned outer fabric is improved in the vertical and horizontal directions according to the expansion deformation of the curved surface portion. , It can be formed so that the shape of the wide width is stably maintained after inversion.

In this way, by allowing the fabric portion coupled with the hard case to be formed with a wide width, as described above, leather or the like can be additionally configured to improve design diversity and aesthetics of the product.

Hereinafter, a method of stably maintaining the outer appearance by improving the tension in the vertical and horizontal directions of the fabric will be described in more detail.

3 to 5 are views specifically explaining the process of combining the hard case and the fabric by FIG. 1, and the inner surface of each component is distinguished from the outer surface by displaying a specific pattern.

First, as shown in FIG. 3, the inner surface 110 of the hard case 100 is arranged in an upward direction and the outer surface 120 is directed downward, the inner surface 110 of the hard case 100. ) It is possible to place the lining 200 on.

At this time, even in the case of the lining 200, the inner surface 210 may be disposed in an upward direction and the outer surface 220 may be disposed in a downward direction.

In addition, the outer fabric 300 may be placed on the outer surface 120 of the edge of the hard case 100, and at this time, the inner surface 310 of the outer fabric 300 faces the outside and the outer surface of the outer fabric 300 ( 320) may be disposed to face inward.

Finally, at the edge of the hard case 100, the coupling webbing 400 may be disposed on the inner surface 210 of the lining 200 or the inner surface 310 of the outer fabric 300.

Then, when the edges of the hard case 100, the lining 200, and the outer fabric 300 are sewn together with the coupling webbing 400, each component can be coupled as shown in FIG.

At this time, the edge of the hard case 100 may be exposed to some of the coupling parts, which may cause injuries to the user during use.

Accordingly, as shown in FIG. 4, after the hard case 100, the lining 200, and the outer fabric 300 are coupled by the coupling webbing 400 to wrap the closing webbing 500, the closing webbing 500 ) can be sewn secondarily so that it is coupled to the coupling part.

As shown in the upper part of FIG. 5, when the finishing webbing 500 is coupled, after the first and second sewing completed products are turned over as shown in the lower part of FIG. 5 (solid arrow in FIG. 5), the hard case 100 is the standard. By turning the outer fabric 300 over (boxed arrow in FIG. 5), the inner surface 310 and the outer surface 320 of the outer fabric 300 can be reversed.

3 to 5 applied to actual products are shown in Fig. 7, Fig. 7 (a) is a photograph of the state in which each component is combined by sewing, and Fig. 7 (b) is a reversed outer fabric. state was photographed.

Referring to (b) of FIG. 7 , it can be easily seen that the width of the outer fabric in the product manufactured according to the present invention is wider than the fabric width (a) of conventional products shown in FIG. 8 .

More specifically, in the products shown in FIG. 8, the fabric portion including the zipper portion is around 1 cm, whereas the fabric portion shown in FIG. 7 (b) is 3 cm (eg, edge portion) to 5 cm (eg, For example, a straight line portion), it can be seen that the fabric portion of the present invention can be 3 to 5 times wider than a general product, and even more is possible.

In addition, it can be confirmed that the external appearance can be stably maintained by maintaining sufficient tension in the vertical direction as well as the horizontal direction, as shown in FIG. 7 (b) while maintaining the wide width of the outer fabric.

In FIG. 8 , (a) is a travel bag, (b) is a bag worn on the back, and identification code 'b' indicates a hard case portion.

Referring to FIG. 8, a conventional bag is one in which the fabric part (zipper) is directly connected to the hard case without turning over as in the present invention. When the fabric is directly connected to the hard case, the fabric cannot stably maintain tension, so the The width can only be formed to a minimum.

On the other hand, since the present invention sews and combines the fabric on the hard case and completes the product by turning the combined fabric over, sufficient tension can be generated in the fabric due to the change in position between the fabric and the hard case during the flipping process. As shown in (b) of 7, the outer appearance of the fabric can be stably maintained.

Hereinafter, a method for further improving the tension of the fabric will be described.

First, the coupling part (edge part) of the hard case 100 is formed to be inclined from the edge to the center based on the outer surface 120 of the hard case 100, and in the component arrangement step (S100), the outer fabric of the fabric ( 300 may be disposed along the inclined surface of the coupling part of the hard case 100.

At this time, since the side of the hard case 100 gradually narrows at the edge, the outer fabric 300 may also have a shape corresponding to the side of the hard case 100 formed in a trapezoidal shape.

Thereafter, when the inverted fabric (outer fabric) is formed in the vertical direction on the hard case 100 in the inner/outer reversal step (S400), the tension of the outer fabric 300 can be improved because the narrow part of the trapezoid is expanded.

In addition, when the inside and outside of the fabric (outer fabric) are reversed in the inside and outside reversal step (S400), the flat part along the sewing part is transformed into a curved surface and maintained while tension is improved in the upward and downward curved direction can

In other words, the outer fabric 300 coupled to the hard case 100 is primarily tensioned as its cross section is transformed into a curved surface (width direction) in the overturned portion, and after being overturned, due to the external change (lengthwise direction) 2 Since the tension is gradually increased, the outer appearance of the outer fabric 300 can be stably maintained.

In addition, as shown in FIG. 3, the edge portion of the hard case 100 is formed as a curved surface, and in the process of inverting the inside and outside of the fabric (outer fabric), it is bent along the curved surface of the edge portion in the horizontal direction. Tension can be improved.

Therefore, in the present invention, as the tension of the edge portion of the hard case 100 is more improved than the tension of the edge of the straight portion, it is possible to obtain the effect of pulling the fabric (outer fabric) of the straight portion from both edge portions, thereby resulting in The overall shape can be maintained stably.

6 is a partially enlarged view showing an embodiment of a hard case applied to FIG. 1 .

Referring to FIG. 6, the hard case 100 may be made of a weaving composite material using carbon fiber.

In other words, the hard case 100 of the carbon fiber composite material may be manufactured by a weaving method such that the carbon fibers (bundle type) constitute the weft and warp yarns.

At this time, the hard case 100 may be manufactured through additional processes such as clear coating, curing, filling, grinding, etc., and these processes may be modified in various ways according to the needs of those skilled in the art, so they are not limited to a specific one.

In this way, in the process of manufacturing the hard case 100, as shown in the enlarged portion of FIG. 6, at least one of the weft 121 and the warp 122 of carbon fiber is placed at a joint part of the hard case 100 at regular intervals. The omission hole 123 may be formed by omission.

Accordingly, when the hard case 100 and the fabric (outer fabric) are sewn using the missing hole 1230 in at least one of the first sewing step (S200) and the second sewing step (S300), sewing can be performed more easily. there is.

9 is a partially enlarged cross-sectional view showing an embodiment of the hard case bag manufactured by FIG. 1 .

First, as shown in (a) of FIG. 9, the lining 200 is placed on the inner surface of the hard case 100, and the outer surface of the outer fabric 300 is placed in close contact with the outer surface of the hard case 100. .

Then, in the coupling part 100a, which is the edge of the hard case 100, the coupling webbing 400 is disposed on the outer surface of the outer fabric 300, and the lining, the hard case, the outer fabric, and the coupling webbing are connected to the primary sewing thread t1. sew with

Then, as shown in (b) of FIG. 9, the finishing webbing 500 is disposed so that the edge of the coupling part 100a is covered, and both side edges of the finishing webbing 500 are sewn with the secondary sewing thread t2. do.

Finally, as shown in (c) of FIG. 9, the upper part of the outer fabric 300 is turned inside out and folded so that the secondary sewing thread t2 is covered.

Therefore, in the bag manufactured according to the present invention, the sewing threads t1 and t2 are not visible when viewed from the outside, and are firmly sewn by the double bar structure, preventing rainwater, sewage, foreign substances, etc. from entering from the outside. can

In addition, as shown in (c) of FIG. 9, since the outer fabric 300 is configured by being folded, the tension of the folded portion is improved and the inverted portion (the portion directed downward in (c) of FIG. 9) is more firmly maintained. can

In the above, the method of combining the fabric with the hard case according to the present invention and the hard case bag manufactured using the same have been described. It will be understood that the technical configuration of the present invention can be implemented in other specific forms without changing the technical spirit or essential features of the present invention by those skilled in the art to which the present invention belongs.

Therefore, the embodiments described above are illustrative in all respects and should be understood as non-limiting ones.

100: hard case
110: inner surface 120: outer surface
121: weft 122: warp
123: missing hole
200: Lining
210: inner surface 220: outer surface
300: Outer
310: inner surface 320: outer surface
400: combined webbing
500: finishing webbing

Claims (15)

A component arrangement step of arranging the hard case and at least one inner surface of the fabric to be exposed to the outside;
A first sewing step of sewing at least one fabric to the coupling part of the hard case;
A second sewing step of closing and sewing the firstly sewn portion of the hard case; and
An internal and external reversal step of turning over at least one fabric sewn based on the hard case so that the outer surface of the hard case and the fabric is exposed to the outside; includes,
The hard case,
It is made of a weaving composite material using carbon fiber,
In the coupling part,
Missing holes are formed in which at least one of the weft and warp threads is missing at regular intervals,
At least one of the first sewing step and the second sewing step,
Method for coupling the fabric to the hard case, characterized in that for sewing the hard case and the fabric using the missing hole.
According to claim 1,
In the component placement step,
The outer fabric of the fabric is formed and disposed in a wide width,
In the step of inverting the inside and outside,
In the process of turning the fabric over, the tension of the overturned outer fabric is improved in the vertical and horizontal directions according to the expansion deformation of the curved surface, so that the shape of the wide width is maintained after inversion. How to combine the fabric with a hard case .
According to claim 1,
In the component placement step,
A lining arrangement process of arranging the inner surface of the lining to be exposed on the inner surface of the hard case;
An outer fabric arrangement process of arranging an outer surface of the outer surface of the hard case to be exposed along the edge of the hard case; and
Coupling webbing arrangement process of disposing at least one webbing (Webbing) for coupling along the edge of the hard case; Method for coupling the fabric to the hard case, characterized in that it comprises a.
According to claim 1,
At least one of the first sewing step and the second sewing step,
Using a sewing thread made of high-strength material containing at least one of Aramid and Kevlar and an industrial high-carbon steel needle, sewing the hard case and at least one fabric To combine the fabric with the hard case method.
According to claim 4,
At least one of the first sewing step and the second sewing step,
A method of coupling fabric to a hard case, characterized in that sewing by adjusting the sewing interval to 4mm to 6mm.
According to claim 4,
At least one of the first sewing step and the second sewing step,
A method of coupling fabric to a hard case, characterized in that for sewing by adjusting the speed of the sewing machine to 180 rpm to 420 rpm.
delete According to claim 1,
The coupling part of the hard case,
Based on the outer surface of the hard case, it is formed to be inclined from the edge to the center,
In the component placement step,
The fabric is arranged along the inclined surface of the coupling part of the hard case,
In the step of inverting the inside and outside,
A method of coupling a fabric to a hard case, characterized in that the inverted fabric is formed in a vertical direction on the hard case.
According to claim 1,
In the step of inverting the inside and outside,
The method of coupling the fabric to the hard case, characterized in that the fabric is formed so that the tension is improved in the upward and downward curved direction while maintaining the curved surface along the sewing portion in the process of inverting the inside and outside.
According to claim 9,
The edge portion of the hard case is formed in a curved surface,
In the step of inverting the inside and outside,
The method of coupling the fabric to the hard case, characterized in that the fabric is formed so that the tension in the horizontal direction is improved while being bent along the curved surface of the edge portion in the process of inverting the inside and outside.
According to claim 1,
In the component placement step,
The hard case is disposed with an edge toward the top,
The coupling part of the hard case is formed to be inclined toward the center toward the lower direction,
The fabric is arranged so that its width gradually narrows along the inclined surface of the coupling part,
In the step of inverting the inside and outside,
When the fabric is overturned, the overturned fabric is directed in a vertical direction to the hard case and the narrowed part expands to improve tension.
A hard case forming at least a part of the outer appearance of the bag; and
Including; outer fabric that is folded and coupled to the outer surface of the edge of the hard case,
A lining is formed on the inside of the hard case,
On the outer surface of the coupling part of the hard case, an outer fabric and a coupling webbing are sequentially formed,
In the coupling part of the hard case, the lining, hard case, outer fabric, and coupling webbing are sewn by the primary sewing thread,
The outer layer is
Hard case bag, characterized in that configured to be folded while being supported by the primary sewing thread.
According to claim 12,
The hard case and outer fabric are sewn and combined by a sewing thread,
The outer layer is
Hard case bag, characterized in that configured to be folded to cover the sewing thread.
delete According to claim 12,
A finishing webbing is configured to cover the edges of the lining, hard case, outer material, and coupling webbing sewn by the primary sewing thread at the coupling part of the hard case,
Both sides of the finishing webbing are sewn by a secondary sewing thread,
The outer layer is
Hard case bag, characterized in that configured to be folded while being supported by the primary sewing room and the secondary sewing room.

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