KR101056216B1

KR101056216B1 - The manufacturing method for the sole of a shoes

Info

Publication number: KR101056216B1
Application number: KR1020100140011A
Authority: KR
Inventors: 이승호
Original assignee: 이승호
Priority date: 2010-12-31
Filing date: 2010-12-31
Publication date: 2011-08-11
Also published as: WO2012091378A2; WO2012091378A3

Abstract

The present invention relates to a sole and a manufacturing method thereof.
The main configuration of the present invention is provided with a hard part made of a hard rubber material, and made of a sole having a soft part made of a soft rubber material from the bottom center of the hard part to the front end, wherein the hard part and the soft part are provided. It is characterized by being molded integrally.
Therefore, the present invention is provided with a hard portion made entirely of hard, and provided with a soft portion made of soft on the front lower surface, by making the hard portion and the soft portion integrally produced, while the sole is naturally stretched in accordance with walking or doublet There is an effect that can prevent the shoe from being peeled off during walking or walking.

Description

Outsole and its manufacturing method {The Manufacturing Method for the Sole of a Shoes}

The present invention relates to a sole and a method for manufacturing the same, and more specifically, the front is made of a hard, but the lower front is made of a soft injection-molded sole, when the user walks or doubles, the sole is naturally bent and peeled off The present invention relates to a sole and a method of manufacturing the same, which can prevent the loss and at the same time absorb friction with the ground to increase the service life and minimize the noise generated when walking.

In general, men's shoes, ladies shoes, etc. are collectively referred to as shoes, and the shoes are walked or doubled.

The sole of the shoe is a part that performs a lot of stretching movements while walking, but also receives the user's body load and transfers it to the ground. Such a sole should have no slip when walking, less fatigue of the foot, and a feeling of wearing At the same time, the visual aspect should be good with the design aesthetic image.

Referring to the accompanying drawings, a shoe provided with a conventional sole as described above in detail as follows.

1 is a perspective view showing a conventional shoe, Figure 2 is a view showing a typical shoe configuration.

As shown in the figure, the conventional shoe has a sole 3 to which the heel 1 is attached to the rear lower portion, an upper 2 attached to the surface of the sole 3 to form a shoe, and the sole ( 3) is attached to the surface of the upper (2) is attached to the inside of the midsole (4), and attached to the upper portion of the midsole (4) consists of a claw (5) in contact with the sole of the user.

3 is a perspective view of a conventional sole.

As shown in the drawing, the conventional sole 3 has the same thickness as the whole, and is provided with a grinding portion 6 for increasing the aesthetic image by reducing the thickness of the entire outer circumference.

At this time, the sole 3 is made of ABS (ABS resin), the hardness is 90 ~ 100 [hs], the grinding portion 6 is the outer periphery of the sole 3 using a grinding machine Move along and grind the sole (3) to make the thickness thin.

Since the grinding machine currently uses a variety of machines at the place where the sole 3 is manufactured, a detailed description thereof will be omitted.

On the other hand, it is also possible to shave the sole 3 by skiving to make it thin. The skiving (Nippy Skiving Machine) is a machine to avoid partly, and it cuts the cutting part of the leather piece inclinedly.

In detail, when the cutting of the leather is cut at an angle, the presser supporting the leather (aka presser foot or Osai) and the pedestal (aka vest) for determining the cutting width are formed in a roller type for smooth transfer and accurate cutting of the leather. It is a leather skiving machine that improves the quality and productivity of leather products.

On the other hand, since the hardness of the sole (3) is strong, there is a problem that the shoes (3a) does not bend during walking or cantilever easily peel off shoes.

At this time, the flexion portion (3a) is a portion that refers to the front portion of the sole 3, refers to the portion that is flexibly bent while touching the ground of walking or cantilever.

Therefore, when the user walks or walks with shoes, the flexion part 3a is bent and flexion movement is made according to the movement of the user's foot, but the hardness of the sole 3 is strong and the flexion part 3a is bent. There is a problem that the user's heel is peeled off the back of the shoe does not fall.

And the hardness of the outsole (3) is strong, there is also a problem that does not absorb the frictional force with the ground is easily worn.

That is, when the user walks or walks, the frictional force with the ground is generated on the lower surface of the sole 3, but the sole 3 has a strong hardness and thus does not absorb it and wears.

In addition, since the sole 3 is easily worn, only one side is continuously worn out according to the shape of the individual walking or doublet, so that only one side is worn out, so that the right side can not walk or doublet. There was also a problem.

In addition, the noise generated by the impact of the ground or walking during the walk, there is a problem that gives off to others around.

The present invention is to solve the above problems, and to provide a sole and a method of manufacturing the sole to prevent the shoe from peeling off during walking or canter by allowing the sole to be naturally stretched while at the same time making the sole easily. Has its purpose.

In addition, there is also an object to minimize the wear of the bottom of the sole by absorbing the frictional force with the ground when walking or walking on the shoe provided with the sole.

In addition, there is also an object to minimize the noise caused by the impact with the ground when walking or walking shoes wearing the shoe provided with the sole, to prevent the discomfort to others around.

The outsole of the present invention for achieving the above object is provided with a hard part made of a hard rubber material, the sole is provided with a soft part made of a soft rubber material entirely from the center of the bottom surface to the front end of the hard part However, the hard portion and the soft portion is characterized in that the molded integrally produced.
In this case, the hard part is formed by mixing 70 to 85% by weight of natural or synthetic rubber and 15 to 30% by weight of a curing agent to have a hardness of 65 to 90 [hs] based on a hardness of 0 to 100 [hs], The soft part is formed by mixing 99 to 86% by weight of natural or synthetic rubber and 1 to 14% by weight of a curing agent to have a hardness of 30 to 60 [hs] based on a hardness of 0 to 100 [hs]. It is done.

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And the said hard part is produced by the thickness of 1-2 mm, and the said soft part is produced by the thickness of 1.5-2 mm.

On the other hand, the hard part including a through-hole formed in a hard rubber material, but the entire through the bent portion stretched by the bending generated during walking or cantilever, and filled in the through hole of the hard portion and at the same time the lower front of the hard portion It consists of a sole provided with a soft portion made of a soft rubber material, the hard portion 110 and the soft portion 120 may be integrally molded.
At this time, the hard part is formed by mixing 70 to 85% by weight of natural or synthetic rubber and 15 to 30% by weight of a curing agent to have a hardness of 65 to 90 [hs] based on a hardness of 0 to 100 [hs], The soft part is formed by mixing 99 to 86% by weight of natural or synthetic rubber and 1 to 14% by weight of a curing agent to have a hardness of 30 to 60 [hs] based on a hardness of 0 to 100 [hs]. It is done.

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According to the present invention sole and the manufacturing method as described above, the whole is provided with a hard portion made of a hard, and provided with a soft portion made of a soft on the front lower surface, the hard part and the soft part is made integrally, so that the sole is produced and at the same time According to this gait or canter is naturally stretched movement, there is an effect that can prevent the shoe off during walking or canter.

In addition, when walking or walking with the shoe provided with the sole, frictional force with the ground is absorbed by the soft part, thereby minimizing the wear of the bottom of the sole.

In addition, when walking or walking on the shoe provided with the sole, the noise generated by the impact with the ground by the soft portion is minimized, there is also an effect to prevent the discomfort to others around.

1 is a perspective view of a typical shoe
2 is a view showing a typical shoe configuration
3 is a perspective view of a conventional sole
4 is a perspective view of the sole according to the present invention;
5 is a side view of the sole according to the invention
Figure 6 is a perspective view showing another embodiment of the sole according to the present invention
7 is a side cross-sectional view of the sole according to FIG. 6;
8 is a view of a ready state for producing a hard part of the sole according to the present invention;
9 is a view showing a state in which a hard part is manufactured according to FIG. 8;
10 is a view of the preparation state for producing a soft portion of the shoe heel according to the present invention
11 is a view of a state in which a soft portion is manufactured according to FIG. 10.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings such that those skilled in the art may easily implement the present invention.

Figure 4 is a perspective view of the sole according to the invention, Figure 5 is a side view of the sole according to the invention.

As shown in the figure, a hard part 110 made of a hard rubber material is provided, and the sole provided with a soft part 120 made of a soft rubber material from the center of the bottom surface of the hard part 110 to the front end ( 100, but the hard part 110 and the soft part 120 is characterized in that the integrally molded.

In more detail, the sole 100 is formed to have an outer circumference corresponding to the lower portion of the shoe, and the entire upper side is made of the hard part 110, and the front end is formed at the center of the bottom surface of the hard part 110. The entire area is made up of the soft part 120 from the flexion part 101 where flexion is made while contacting the ground during walking or doublet, or the front end where the toe is located.

That is, the hard part 110 is made of a rubber material but is provided with a high hardness, and the soft part 120 is made of a rubber material but is provided with a low hardness, the flexing part by the soft part 120. 101 can be flexibly flexed.

In this case, the flexion part 101 refers to a part that refers to the front part of the sole 100 and is a part that is flexibly bent while touching the ground during walking or cantilever.

Thus, when the user walks or walks wearing shoes, the flexion unit 101 is bent and flexion movement is performed according to the movement of the user's foot.

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And the hard part 110, the entire thickness is made the same, the outer peripheral edge is provided with a grinding portion 130 for increasing the aesthetic image by thinning the thickness.

At this time, the grinding unit 130, the grinding machine is moved along the outer circumference of the sole 100 as in the prior art to make the thickness of the sole 100 by thinning.

On the other hand, conventionally, in manufacturing the sole 3, the reason for the production of a high hardness material (ABS, urethane, etc.) is to be made of a material with a high hardness in order to form the grinding portion 6 as described above. When the hardness is low, the sole 3 is pushed out during the grinding operation, so that smooth grinding is not performed, and the sole 3 is integrally made of a very high hardness material.

However, in the present invention, the sole 100 is formed of a hard portion 110 of a rubber material having a high hardness, and at the same time, the soft portion 120 of a rubber material having a low hardness is integrated in the lower front of the hard portion 110. By forming a, it is possible to smooth the grinding operation on the hard portion 110, and the flexion portion 101 by the soft portion 120 is flexibly bent and to prevent the shoe from being peeled off during walking or cantilever.

In addition, since the slip generated during walking or doublet is absorbed by the soft part 120 to minimize the wear of the soft part 120, the sole 100 does not need to be replaced frequently.

In addition, the soft portion 120 is absorbed by the impact generated during walking or walking can not be generated noise, as well as the impact of the ground due to walking or walking can not be transmitted to the foot safe and comfortable walking or walking Will be able to.

In the related art, after the sole 3 is made of a material having high hardness, a separate flexible member is attached to the lower front of the sole 3 with an adhesive, but the sole 3 and the flexible member are used. It is difficult to integrate by the adhesive is easy to fall off and there was a problem that must be replaced frequently.

In addition, the flexible member, those made of various materials are used, only expensive products perform their functions appropriately, and most products have a problem in that they are easily worn or too hard to generate noise with fatigue.

Accordingly, in the present invention, the hard part 110 and the soft part 120 of the sole 100 are integrally manufactured so that the case does not fall at all, and the product quality is excellent so that the wear or noise does not occur easily. Will not.

On the other hand, the hard part 110 is a natural rubber or synthetic rubber 70 ~ 85 weight to have a hardness of 65 ~ 90 [hs] when the hardness is measured in the range of 0 ~ 100 [hs] based on shore hardness It is preferable to shape | mold and mix% and 15-30 weight% of hardening | curing agents.
In this case, when the hardness of the hard part 110 is 91 [hs] or more, the hardness is so strong that the flexion part 101 is not bent, and the shoe is peeled off. When the hardness is 64 [hs] or less, the hardness Is too weak not to maintain the shape of the sole 100, as well as to obtain a perfect coupling force with the heel.
In addition, the soft part 120 may be manufactured by mixing 99 to 86% by weight of natural rubber or synthetic rubber and 1 to 14% by weight of a curing agent to have a hardness of 30 to 60 [hs].
In this case, when the hardness of the soft portion 120 is 61 [hs] or more, the hardness thereof is too strong, and there is a problem that it is easily worn by slipping occurring during walking or doublet, and when the hardness is 29 [hs] or less, the hardness is It is so weak that it is twisted by the impact on the ground.

The natural rubber used for the hard part 110 and the soft part 120 is an elastic hydrocarbon polymer and is naturally made in the sap of some trees such as colloidal suspension of milk or latex, and the main source of latex is para rubber. It is a tree (Hevea brasiliensis).

And the synthetic rubber (Synthetic rubber) is a generic name of a synthetic rubber material or rubber-like elastic material having a property similar to natural rubber (styrene), styrene butadien rubber (styrene butadien rubber (SBR), Polychloroprene rubber (CR), nitrile rubber (acrylonitrile-butadiene rubber (NBR)), butadiene rubber (BR), urethane rubber (urethane rubber) and the like.

In the present invention, when manufacturing the hard part 110 or the soft part 120 using the synthetic rubber, it is preferable to use the styrene butadiene rubber.

The hardener is a medicament that is added to a thermosetting resin and hardens by causing bridge bonds. Hexamethylenetetramine, amines, polyamides, phenols, carbon, bone marrow (bone powder, earthen powder, nacre powder) , Stone powder, charcoal, tile powder, lacquer waste).

At this time, in this invention, it is preferable to use a phenol and osteolysis among said hardening | curing agents.

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On the other hand, it is preferable that the hard part 110 constituting the sole 100 is manufactured to a thickness of 1 to 2 mm, and the soft part 120 is manufactured to a thickness of 1.5 to 2 mm.

This is because when the thickness of the hard part 110 is 0.9 mm or less, there is a problem that it is too thin to maintain the bonding force with the heel, and when the thickness of the hard part 110 becomes 2.1 mm or more, the thickness becomes too thick. Since the bending part 101 does not flexibly bend, it is preferable that the hard part 110 is manufactured to a thickness of 1 to 2 mm.

And when the thickness of the soft portion 120 is less than 1.4mm, the thickness of the soft portion 120 is thin, there is a problem that does not absorb the impact with the ground smoothly, the thickness of the soft portion 120 is 2.1 When the thickness is greater than or equal to ㎜, the thickness of the soft part 120 becomes thick, so that the soft part 120 is distorted due to the impact with the ground. Thus, the soft part 120 is preferably manufactured to a thickness of 1.5 to 2 mm. .

In addition, the hard part 110 is made of ABS (ABS resin) or urethane (Urethane) so as to have a hardness of 65 to 90 [hs], and then the soft part 120 at the lower front of the hard part 110. ) Can also be produced by attaching with an adhesive, all such simple design changes will belong to the scope of the present invention.

On the other hand, the sole 100 may be configured differently, with reference to the accompanying drawings will be described another embodiment of the sole of the present invention as follows.

6 is a perspective view showing another embodiment of the sole according to the present invention, Figure 7 is a side cross-sectional view of the sole according to FIG.

As shown in the figure, the hard part 110 and the hard part including a through-hole 111 formed through the bending portion 101 is stretched by the bending occurs during walking or cantilever made of a hard rubber material, the hard part Filled in the through-hole 111 of the 110 and at the same time consists of a sole 100 is provided with a soft portion 120 made of a soft rubber material in the lower front of the hard portion 110, the hard portion 110 ) And the soft portion 120 is characterized in that the integrally molded.

That is, when the hard part 110 is manufactured, the through hole 111 is formed through the flexure part 101, and when the soft part 120 is integrally manufactured at the lower front of the hard part 110, Filling the through hole 111 and at the same time to form the soft portion (120).

At this time, the through hole 111 is formed and filled with the soft part 120 because the hardness of the hard part 110 is high, so that the flexion part 101 may not be bent flexibly. The through-hole 111 is formed in the 101 and the through-hole 111 is filled with the soft part 120 to allow the flexion part 101 to bend more flexibly.

On the other hand, the present invention has been described that the through hole 111 is formed in the bent portion 101, but is not limited to this, including only the rear side of the bent portion 101 and may form the through hole 111. As such, it can be variously changed depending on the shape or shape of the shoe to which the sole 100 is coupled, such a simple design deformation will all be within the scope of the present invention.

As described above, the hard part 110 and the soft part 120, the hard part 110 has a hardness of 65 to 90 [hs], 70 to 85% by weight of natural or synthetic rubber, and a curing agent 15 ~ 30% by weight of the mixture is molded, and the soft portion 120 is formed by mixing 99 to 86% by weight of natural or synthetic rubber and 1 to 14% by weight of a curing agent to have a hardness of 30 to 60 [hs] Is produced.

The hard part 110 is manufactured to a thickness of 1 to 2 mm, and the soft part 120 is manufactured to a thickness of 1.5 to 2 mm. In this case, the thickness of the soft part 120 refers to a thickness except for the portion of the through hole 111.

8 is a view of a ready state for producing a hard portion of the sole according to the present invention, Figure 9 is a view of a state for producing a hard portion according to Figure 8, Figure 10 is a preparation for producing a soft portion of the shoe heel according to the present invention It is a figure of a state, and FIG. 11 is a figure of the state which produced the soft part according to FIG.

Referring to FIG. 8, the sole 100 according to the present invention may be manufactured by integrally compressing the upper mold 200 and the lower mold 300. In this case, the lower mold 300 includes a molding part 310 having an inner circumference corresponding to the outer circumference of the sole 100, and the upper mold 200 is formed with the molding part 310 of the lower mold 300. And correspondingly protruding downward projections.
In more detail, the lower die 300 is formed in a shape corresponding to the sole 100, and is provided with a molding part 310 made of an inner circumferential edge corresponding to an outer circumferential edge of the sole 100. That is, the molding part 310 of the lower die 300 is formed to mold the sole 100 upside down.
The upper mold 200 has a first protrusion 210 corresponding to the molding part 310 of the lower mold 300 and protruding downward. In this case, the first protrusion 210 is formed to have a length capable of compressing the molding part 310 to the remaining thickness of the sole part 100 by subtracting the thickness of the soft part 120.
By using the upper mold 200 and the lower mold 300 having such a structure, the hard part 110 is first molded. In detail, as shown in Figure 9, 70 to 85% by weight of the natural rubber or synthetic rubber and the first molding material 410 mixed with 15 to 30% by weight of the curing agent is put, the upper mold 200 is lowered When the first molding material 410 is pressed by the first protrusion 210, the first molding material 410 is pressed by the molding part 310 to form the hard part 110. In this case, the hard part 110 is molded to have a hardness of 65 to 90 [hs] based on the hardness of 0 to 100 [hs].
Referring to FIG. 10, after the molding of the hard part 110 is completed as described above, the lower part of the upper mold 200 is provided with a second protrusion 220 instead of the first protrusion 210. The second protrusion 220 is formed so that the soft portion 120 is molded in the front portion excluding the rear of the hard portion 110, and protrudes downward from the upper mold 200.
After raising the upper mold 200 having such a structure, the second molding material 420 for forming the soft part 120 is placed in the molding part 310 and then hardened by pressing again as shown in FIG. 11. The forming process of the soft part 120 is performed in the upper front of the part 110.
In this case, the second molding material 420 is a mixture of 99 to 86% by weight of natural rubber or synthetic rubber and 1 to 14% by weight of a curing agent, and the lower mold (2) as the second protrusion 220 of the upper mold (200). By pressing 300 to a pressure of 1 to 2 tons (t), the soft part 120 can be integrally formed on the front upper part of the hard part 110. At this time, since the soft part 120 is pressed and molded on the hard part 110 that is not completely hardened, the hard part 110 and the soft part 120 can achieve complete integration.
The soft part 120 formed by the above process has a hardness of 30 to 60 [hs] based on a hardness of 0 to 100 [hs].

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Meanwhile, when the through hole 111 is provided in the hard part 110 as shown in FIGS. 6 and 7, the molding part 310 of the lower mold 300 is formed in the process of forming the hard part 110. Protruding upwards to form a through hole 111 and a protrusion (not shown) in which the hard part 110 may be formed is a matter of course.

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On the other hand, the through-hole 111 is filled with a polyurethane material that provides a soft cushion, and the soft portion 120 can be manufactured by injecting the soft portion 120 in the lower front of the hard portion 110 of course of the present invention Will belong to the category.

That is, when the hard part 110 is molded, the through hole 111 is formed to be formed, and then a polyurethane material is injected into the through hole 111 to fill the through hole 111, and then the hard part is formed. The soft part 120 is injected into the lower part of the part 110 to be molded.

Therefore, unlike when the soft part 120 is formed by filling the through hole 111, when the through hole 111 is filled with a polyurethane material, the sole 100 may be more excellent in wearing comfort. .

In addition, the hard part 110 is formed so that the through hole 111 is formed, and the injection molding of the soft part 120 in the lower front of the hard part 110 is performed so as not to fill the through hole 111. Formed to correspond to the through-hole 111, but formed by a separate bonding plate formed of a polyurethane material, it is configured to be used by combining the bonding plate produced separately in the through-hole 111 of the sole 100 Of course, it can also be said that this also belongs to the scope of the present invention.

The sole and the manufacturing method of the present invention have been described with reference to the preferred embodiment as described above, but is not limited to the above embodiment, it should be interpreted by the appended claims. In addition, various modifications and variations may be made by those skilled in the art within the equivalent scope of the technical concept of the present invention and the appended claims.

100-Soles 101-Flexors
110-Rigid Part 111-Through Hole
120-soft parts
130-grinding part
200-Prize type 210-First projection 220-Second projection
300-Lower die 310-Molding part
410-First Molding Material 420-Second Molding Material

Claims

It is provided with a hard part 110 made of a hard rubber material,
The sole portion 100 is provided with a soft portion 120 made of a soft rubber material from the center of the bottom surface to the front end of the hard portion 110,
Outsole, characterized in that the hard part 110 and the soft part 120 is formed integrally molded.

The method according to claim 1,
The hard part 110,
70 to 85 wt% of natural or synthetic rubber and 15 to 30 wt% of a curing agent are molded to have a hardness of 65 to 90 [hs] based on a hardness of 0 to 100 [hs],
The soft part 120,
An outsole characterized in that the molding is produced by mixing 99 to 86% by weight of natural or synthetic rubber and 1 to 14% by weight of a hardener to have a hardness of 30 to 60 [hs] based on a hardness of 0 to 100 [hs].

The method according to claim 1,
The hard part 110 is produced to a thickness of 1 ~ 2mm,
The soft part 120, the sole, characterized in that to produce a thickness of 1.5 ~ 2mm.

Hard part 110 made of a hard rubber material as a whole, including a through-hole 111 penetrating through the flexion portion 101 which is stretched by the bending occurring during walking or doublet, and
Filled in the through hole 111 of the hard portion 110 and at the same time consists of a sole 100 is provided with a soft portion 120 made of a soft rubber material in the lower front of the hard portion 110,
Outsole, characterized in that the hard part 110 and the soft part 120 is formed integrally molded.

The method according to claim 4,
The hard part 110,
70 to 85 wt% of natural or synthetic rubber and 15 to 30 wt% of a curing agent are molded to have a hardness of 65 to 90 [hs] based on a hardness of 0 to 100 [hs],
The soft part 120,
An outsole characterized in that the molding is produced by mixing 99 to 86% by weight of natural or synthetic rubber and 1 to 14% by weight of a hardener to have a hardness of 30 to 60 [hs] based on a hardness of 0 to 100 [hs].

The method according to claim 4,
The hard part 110 is produced to a thickness of 1 ~ 2mm,
The soft part 120, the sole, characterized in that to produce a thickness of 1.5 ~ 2mm.

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