KR102645835B1 - Non-slip part and non-slip part manufacturing method of a shoe sole combined - Google Patents

Abstract

The present invention is a method of manufacturing a shoe sole in which a non-slip member is combined with a non-slip member. To describe this in more detail, a shoe sole having a new bonding structure does not use a conventional adhesive to bond a non-slip member to the sole of a shoe. The present invention is intended to provide a method for manufacturing the same, and as a specific means, the non-slip member is integrated with a coupling portion (3) that protrudes upward so that the upper part is coupled to the shoe sole (1) and a lower portion of the coupling portion (3). Some of them are coupled to the shoe sole (1), and some of them include a contact portion (4) protruding downward from the shoe sole (1). The present invention allows for rapid production and strong bonding. It is an invention that can be expected to provide many effects.

Description

Non-slip part and non-slip part manufacturing method of a shoe sole combined}

The present invention is a method of manufacturing a shoe sole in which a non-slip member is combined with a non-slip member. To describe this in more detail, it includes a non-slip member that is coupled to the sole of a shoe to prevent the shoe from slipping, and a shoe sole to which this non-slip member is applied. It's about method.

In the sole constituting the lower part of a shoe, a non-slip pad composition for shoe soles and the composition to which the same is applied, as published in Republic of Korea Patent Publication No. 0009303 (published on January 30, 2020), among the technologies related to conventional soles It relates to shoe soles, and more specifically, it is made of a synthetic resin binder and a non-slip composition, and the non-slip composition is made of diamond powder or ceramic powder.

As published in Republic of Korea Patent Publication No. 2009 No. 0124313 (published on December 3, 2009), which is another conventional outsole-related technology, in constructing non-slip protrusions protruding from the lower part of the shoe sole, non-slip protrusions are applied to the non-slip protrusions. A non-slip member made of leather (cow, sheep, horse, kangaroo, shark, etc.) or microfiber woven fabric is combined with an internal groove into which the member is fixed, and the height of the non-slip member is the same as the non-slip protrusion. Alternatively, there is a technology disclosed that makes it protrude slightly higher.

The above technologies are commonly produced by bonding a non-slip composition or a non-slip member to an inner groove formed in the sole with an adhesive.

KR 10-2020-0009303 A (2020.01.30.) KR 10-2009-0124313 A (2009.12.03.)

In the present invention, a new technology was created to solve the problems of the prior art described above. When manufacturing soles in the past, when shoe soles and non-slip members are joined using adhesives, changes in temperature and humidity of the surrounding environment and the effects on the shoes are reduced. Depending on the impact, the non-slip composition or non-slip member was frequently separated from the sole, making the non-slip action difficult. If this phenomenon occurred while wearing the shoe, the user had no choice but to experience great difficulties. Additionally, the method of production using adhesives Since the adhesive, which is a consumable, must be prepared and consumed separately, the adhesive must wait until the adhesive hardens, and the odor and toxicity of the adhesive impair the working environment of the production plant and, in severe cases, harm the health of workers, and the present invention In order to solve the above-mentioned shortcomings that arise from the use of adhesives, the sole that forms the bottom of the shoe is configured to have a new space and an inner part in the shoe sole and the non-slip member, respectively, and a new joint structure that can be firmly joined by simply fitting them together. The purpose of the invention is to provide a method of manufacturing a sole having the above bonding structure.

In addition, although not separately described, other purposes within the scope that can be inferred considering the specific details and claims for carrying out the invention below are also included in the overall subject of the present invention.

As a specific means for solving the problem of the invention described above, in the present invention, in constructing a method of manufacturing a shoe sole in which a non-slip member is combined with a non-slip member, the non-slip member includes a coupling portion that protrudes upward so that the upper part is coupled to the shoe sole. , It is formed integrally in the lower part of the coupling part, and some parts are coupled to the shoe sole, and some parts include a contact part that protrudes downward from the shoe sole.

In order to increase the bonding force between the shoe sole and the coupling portion, it may further include a central groove formed at the top of the coupling portion, and an inclined inner peripheral surface or a central groove inner portion formed inside the central groove.

In order to prevent the coupling portion from being separated from the shoe sole, the coupling portion may further include an inclined outer peripheral surface formed on the side of the coupling portion so that the coupling portion is aligned with the top and bottom of the shoe.

It may be characterized by including an upper locking protrusion formed at the top of the coupling portion to prevent the coupling portion from being separated from the shoe sole.

To prevent the coupling portion from being separated from the shoe sole, it may be characterized by including one or two of a side locking protrusion and a side locking groove formed on the side of the coupling portion.

It may be characterized in that it is coupled to an inner hole formed to penetrate up and down the sole of the shoe, and the coupling portion is exposed at the top, further comprising several acupressure protrusions formed at the top of the coupling portion.

It may be characterized by including a rotation prevention means formed on the side of the coupling portion to prevent the coupling portion from rotating while being fixed to the sole of the shoe.

The manufacturing method includes a non-slip member preparation step of injecting the non-slip member from a non-slip member injection mold to cure and separate it, and injecting the shoe sole from a shoe sole injection mold while or after the non-slip member is prepared in the non-slip member preparation step. Shoe sole injection step,

In the shoe sole injection stage, the injected shoe sole is hardened to about 50 to 70% of its fully cured state, and the core, which is a mold that forms the inner part of the shoe sole in the primary curing stage, is not completely hardened. A core separation step in which the core is separated downward from the shoe sole, a secondary hardening step in which the shoe sole from which the core is separated in the core separation step is completely hardened, and a shoe sole in which the completely hardened shoe sole is separated from the mold through the secondary hardening step. It may be characterized as including a separation step and a non-slip member coupling step of coupling the non-slip member to the inner portion of the shoe sole separated in the shoe sole separation step.

According to a specific means for solving the above-mentioned problem, when manufacturing a shoe sole to which a non-slip member is combined, the non-slip member can be bonded to the shoe sole without using an adhesive, creating a pleasant working environment without unpleasant odors or chemical side effects caused by the adhesive. It can be produced quickly, and there is no need to wait for the adhesive to harden.

In addition, the non-slip member can be easily assembled on the sole of the shoe and is firmly coupled so that the non-slip member does not separate from the shoe sole, so the bondability of the non-slip member is high, and the non-slip member prevents the shoe from slipping on the ground and has high functional reliability. Increases user safety.

The non-slip member can be configured to penetrate the sole of the shoe, and in this case, acupressure protrusions are further formed on the upper surface of the non-slip member exposed at the top to stimulate the sole of the user's foot to facilitate blood circulation and improve the health of the shoe wearer. It is an invention with great expected effects.

1 is a three-dimensional diagram schematically showing an example of the present invention.
2 to 3 are three-dimensional views showing an embodiment of the non-slip member of the present invention.
Figure 4 is a side cross-sectional view showing the combination of the shoe sole and the non-slip member of the present invention.
Figure 5 is a three-dimensional view of a non-slip member to which the inclined outer peripheral surface of the present invention is applied.
Figure 6 is a side cross-sectional view of a non-slip member to which the inclined outer peripheral surface of the present invention is applied.
Figure 7 is a side cross-sectional view of a non-slip member to which the inclined inner peripheral surface of the present invention is applied.
Figure 8 is a side cross-sectional view of a non-slip member to which the central groove step of the present invention is applied.
Figures 9 to 10 are three-dimensional views of the non-slip member to which the side locking groove of the present invention is applied.
Figures 11 to 14 are illustrations of non-slip members to which the upper locking protrusion of the present invention is applied.
Figure 15 is a side cross-sectional view showing another embodiment of a non-slip member to which the upper locking protrusion of the present invention is applied.
Figure 16 is a three-dimensional view of the non-slip member to which the side locking protrusion of the present invention is applied.
Figure 17 is a side cross-sectional view of a non-slip member to which the side locking protrusion of the present invention is applied.
Figure 18 is a plan view of a non-slip member to which the side locking protrusion of the present invention is applied.
19 to 20 are side cross-sectional views of the non-slip member coupled to the inner hole of the present invention.
Figures 21 and 22 are three-dimensional views of the non-slip member to which the rotation prevention means of the present invention is applied.
Figure 23 is a plan cross-sectional view of a non-slip member to which the rotation prevention means of the present invention is applied.
Figure 24 is a flow chart showing a method of manufacturing a shoe sole to which the present invention is applied.

The present invention seeks to provide a method of manufacturing a shoe sole in which a non-slip member is combined with a non-slip member. This will be described in more detail with the drawings below, and the attached drawings show the content and scope of the technical idea of the present invention. It is only an example for easy explanation and is not limited thereto, and the terms used are also only for explaining the embodiment in detail and should not be interpreted as being limited to the terms.

The non-slip member (2) of the present invention described above is coupled to the shoe sole (1) as shown in the drawing. In order to absorb the shock caused by the wearer's steps and reduce foot fatigue, the shoe sole (1) is made of soft material. It is made up of materials.

The shoe sole (1) generally has a pattern of convexities and convexities on the lower part of the sole to prevent slipping. If the shoe sole (1) that forms the sole is made up of only soft material, the shoe sole (1) will wear out in a short period of time. This makes it difficult to prevent slipping.

Therefore, as shown in FIG. 1, the non-slip member 2, which has elasticity but is relatively hard, is configured to be coupled to the shoe sole 1, and in the present invention, no adhesive is used for this coupling.

As shown in Figures 2 to 4, the non-slip member 2 is basically formed integrally with the coupling part 3 that protrudes upward so that the upper part is coupled to the shoe sole 1, and the lower part of the coupling part 3. Some are coupled to the shoe sole (1), and some are configured to include a contact portion (4) that protrudes downward from the shoe sole (1).

As shown in FIG. 12, the combined non-slip member (2) is formed to protrude further downward than the bottom of the shoe sole (1) by h, so that contact with the ground is made with the non-slip member (2) first, so that the hard It would be preferable because the non-slip member (2) contacts and rubs the ground before the soft shoe sole (1), thereby prolonging the life of the shoe.

An internal groove (11a) is formed as an internal part (11) in the lower part of the shoe sole (1), and a hard non-slip member (2) can be coupled to the internal groove (11a).

Alternatively, as shown in FIGS. 19 to 20, an inner hole 11b is formed to penetrate up and down as an inner part 11 in the soft shoe sole 1, and a hard non-slip member (11b) is formed in the inner hole 11b. 2) can be combined, and the configuration of the inner hole 11b will be described later.

A coupling support portion 13 is formed in the inner groove 11a or the inner hole 11b so that the coupling portion 3 can be erected and inserted into the shoe sole 1 to fit the shoe sole. A concave ground coupling groove 14 is formed in the lower part of the coupling support portion 13 of (1), and the ground portion 4 of the non-slip member 2 is coupled to correspond to the ground coupling groove 14.

The non-slip member 2 may be formed in an oval shape in plan as shown in FIG. 1, may be formed in a circle in plan as shown in FIG. 2, or may be formed in a polygon as shown in FIG. 3. It may be possible.

Additionally, a central groove 31 sunk to a predetermined depth may be further provided at the top of the coupling portion 3.

In the central groove portion 31, a filling coupling portion 15 formed downward from the upper portion of the groove of the shoe sole 1 may protrude and be coupled to each other.

When the non-slip member 2 having the central groove 31 is coupled to the shoe sole 1, a portion of the shoe sole 1 flows into the coupling portion 3, thereby improving the bonding force and providing more durability. Your shoes will have a long lifespan.

In addition, the volume of the non-slip member 2 is reduced by the volume of the central groove 31, so raw materials are reduced when manufacturing the non-slip member 2, and productivity can be expected to improve due to cost reduction.

The non-slip member 2 may further be provided with a configuration that prevents it from being separated from the shoe sole 1.

For this purpose, the coupling portion 3 is composed of a coupling portion 3 coupled to the lower portion of the shoe sole 1 made of a soft material, and a coupling portion 3 that is caught on the shoe sole 1 and is connected to the shoe sole 1. ) It can be configured with a locking means (5) formed on the coupling portion (3) to prevent it from falling out.

Various embodiments of the above-mentioned locking means 5 will be described later.

As one of the embodiments of the locking means 5, as shown in FIGS. 5 and 6, an inclined outer peripheral surface 53 may be provided on the side of the coupling portion 3 so that the coupling portion 3 is aligned upward and downward.

The inclined outer peripheral surface 53 increases in diameter toward the top, and the inner diameter 11 of the shoe sole 1 correspondingly formed becomes smaller toward the lower portion, so that the inclined outer peripheral surface 53 is attached to the shoe sole 1. It is constructed to be caught.

As another embodiment of the locking means 5, the locking means 5 may be further configured in the central groove 31 as shown in FIGS. 7 and 8.

To explain this in more detail, as shown in FIG. 7, an inclined inner peripheral surface 56 is formed on the upright inner surface of the central groove 31 so that the space portion of the central groove 31 is formed as an upper and lower beam.

Alternatively, as shown in FIG. 8, a central groove step portion 57 may be formed on the upright inner surface of the central groove portion 31 so that the space portion of the central groove portion 31 is formed with upper and lower beams.

When forming the inclined inner peripheral surface 56 or the central groove step 57 as described above, the filling coupling portion 15 of the shoe sole 1 coupled to the central groove portion 31 is formed to correspond to the shape of the upper and lower grooves and is filled. The central groove portion 31 does not fall out of the coupling portion 15.

As another embodiment of the locking means 5, a side locking groove 55 may be further formed on the side of the coupling portion 3, as shown in FIG. 9.

In the side locking groove 55, a corresponding protrusion (not shown) is formed on the shoe sole 1, so that the protrusion is inserted into and caught in the side locking groove 55, and does not escape from the side locking groove 55. To prevent this, a departure prevention protrusion 551 is provided on the upper part of the side locking groove 55.

The departure prevention bump 551 may be applied in combination with the inclined outer peripheral surface 53 as shown in FIG. 10, and in this case, the non-slip member 2 will be more firmly coupled to the shoe sole 1.

Another embodiment of the locking means 5 may further include an upper locking protrusion 51 as shown in FIGS. 11 to 14.

A coupling portion (3) formed to be coupled to the lower part of the shoe sole (1) made of a soft material, and a coupling portion (3) that is caught on the shoe sole (1) to prevent the coupling portion (3) from being separated from the shoe sole (1). ) The coupling portion (3) is composed of a locking means (5) formed in the.

At this time, the flat cross-sectional area of the engaging means (5) is smaller than the flat cross-sectional area of the coupling portion (3).

A coupling support portion 13 is formed in the inner groove 11a or the inner hole 11b so that the coupling portion 3 is erected and inserted into the shoe sole 1 to engage the coupling portion 11. A coupling portion (3) of the coupling portion (3) corresponding to the support portion (13) is formed.

A concave engaging groove 12 is formed on the upper part of the engaging support portion 13 of the shoe sole 1, and a engaging means ( 5), the upper stopping protrusion 51 is formed to protrude.

A concave ground coupling groove 14 is formed in the lower part of the coupling support portion 13 of the shoe sole 1, and the ground portion 4 of the non-slip member 2 is coupled to correspond to the ground coupling groove 14.

Therefore, when the non-slip member 2 having the above configuration is coupled to the shoe sole 1, the locking means 5 of the non-slip member 2 is inserted into the engaging groove 12 of the inner recess 11, and The coupling support portion 13 of the portion 11 is coupled to the coupling portion 3 of the non-slip member 2, and the ground portion 4 of the non-slip member 2 is connected to the ground coupling groove 14 of the inner portion 11. is inserted into and insertion and combination are completed.

Since the upper engaging protrusion 51 of the engaging means 5 embedded in the engaging groove 12 is located at the upper part of the engaging support portion 13 in the embodiment shown in FIGS. 11 to 14, the non-slip member 2 Even if an external force causes the shoe sole 1 to be separated from the inner part 11, the lower part of the locking means 5 is caught on the upper part of the coupling support part 13 and does not fall off.

The above-mentioned locking means (5), coupling support portion (13), and grounding portion (4) may be formed to continue according to the circumferential shape of the inner part (11) and the non-slip member (2), respectively, or may be formed only partially. It might be possible.

As shown in FIG. 12, the contact portion (4) of the non-slip member (2) is larger than the protrusion of the end of the hooking means (5) of the non-slip member (2) so that the area of the non-slip member (2) in contact with the ground is expanded relative to the width of the shoe sole (1). ) can be formed so that the end protrudes further by w, and when formed in this way, even if the space of the inner part 11 is formed somewhat small, the size of the ground part 4 can be secured to be large, so that it is It is possible to increase the traction and friction of shoes.

In addition, it is possible to directly receive and support the load according to the steps of the user wearing shoes in the space of w space on the upper surface of the contact part (4), and the non-slip function on the ground only when the contact part (4) receives the load directly. can be maximized.

If the end of the locking means (5) protrudes close to the end of the contact portion (4), and w converges to 0, and if the end of the locking means (5) protrudes further than the end of the contact portion (4), the shoe When a load is applied to the sole (1), the locking means (5) rather than the contact part (4) supports the load, so it may not be possible to further increase the ground adhesion of the contact part (4).

As shown in FIG. 12, the thickness t2 of the contact part 4 is formed thicker than the thickness t1 of the locking means 5, so that not only the contact part 4 but also the shoe sole 1 is formed as the shoe continues to be used. In the case of wear, the life of the shoe can be extended by making the thickness t2 of the contact part (4) thick enough so that the contact part (4) exists rather than the coupling part (3) being exposed at the bottom of the shoe sole (1). .

The locking means (5) is not a part that is worn out by friction with the ground, and it is desirable that the thickness t1 of the locking means (5) be thinner than the thickness t2 of the contact portion (4) so that the core mold can be easily separated during the manufacturing process. .

As shown in FIG. 11, the upper locking protrusion 51 may form an annular portion 511 at the top of the coupling portion 3 that extends radially further than the diameter of the coupling portion 3.

Alternatively, as shown in FIG. 13, the top locking protrusion 51 is configured to form one or more extension arms 512 extending outward than the diameter of the coupling portion 3, so that, unlike FIG. 3, it is located at the top instead of the center. The locking protrusion 51 can be configured to be slim by forming it to be narrower than the diameter of the coupling portion 3, and when there are two or more extension arms 512, a connecting portion 513 that integrally connects the extension arms 512 to each other. It can be configured to be further formed.

Or, as shown in FIG. 14, the upper stopping protrusion 51 is formed in a plurality of extension arms 512 extending outward than the diameter of the coupling portion 3, and the extension arms 512 are adjacent to each other. may be configured to be spaced apart from each other with a spacer 514 interposed therebetween.

As shown in Figure 15, the inclined surface of the upper and lower narrowing narrows as it goes downward on the inner surface (inner peripheral surface) of the coupling support portion 13 so that it is formed as θ2, and a non-slip member ( In the process of combining 2), the coupling support portion 13 receives a force that spreads left and right by the inserted non-slip member 2, making it easier to combine the non-slip member 2.

If the inclined surface is formed on the inner surface of the coupling support portion 13 and there is no inclined surface in the coupling portion 3 of the non-slip member 2, a separation space is formed between the coupling support portion 13 and the coupling portion 3. Since the non-slip member (2) may be pushed inside the inner part (11), in order to increase fixation and stability, the side of the coupling part (3) also has an upper and lower beam corresponding to the inclined surface formed on the coupling support part (13). It would be desirable to form an additional inclined surface by θ2.

In addition, in order to easily attach the locking means (5) to the inner part (11), the corner where the side and upper surface of the locking means (5) contact each other is formed in a round arc shape, so that when the locking means (5) is inserted, the round arc-shaped portion is formed. It can also be formed to provide force to spread the inner part 11 to the left and right.

By forming the edge where the side and bottom surfaces of the engaging groove 12 are in contact with each other rather than being angled, the shoe sole 1 can be prevented from being damaged when the core mold is separated during the manufacturing process.

The lower surface of the engaging means 5 may be formed to be inclined downward by θ1 in the outward direction, and the upper surface of the coupling support portion 13 may be formed to be downwardly inclined inward by θ1 to correspond to the inclined surface of the lower surface of the engaging means 5. In the case where the non-slip member 2 has an inclined surface equal to θ1 as described above and receives an external force causing it to deviate downward from the inner part 11, the inner part 11 is formed by the inclined direction of the inclined surface with which the non-slip member 2 is in contact. ), so it does not come off because it receives a force pushing to the inside, which has the effect of increasing the fixation of the non-slip member 2 to the inner part 11.

As another embodiment of the locking means 5, as shown in FIGS. 16 and 17, the locking means 5 may be formed of a side locking protrusion 52 formed on the side of the coupling portion 3.

In this case, unlike the previous embodiment where the upper locking protrusion 51 is applied, there is no locking means 5 at the top of the coupling portion 3, so the locking coupling groove 12 is coupled to the side locking protrusion 52. A locking groove 12 is formed in the middle of the support portion 13, so that the side locking protrusion 52 is fitted into the locking groove 12.

The shape of the side locking protrusion 52 does not need to be limited, but it is preferable that it protrudes upward and downward so that it can be easily coupled and cannot be easily separated.

The top locking protrusion 51 or the side locking protrusion 52 may be formed to extend in the circumferential direction of the outer peripheral surface of the locking body depending on the shape of the locking body as shown in (a) of FIG. 18, or ( As shown in c), they may be formed to be spaced apart from each other on the sides of the engaging body, or, as shown in (b) of FIG. 18, if the engaging body has an angled shape, they may be formed at the corners.

As shown in FIGS. 19 and 20, there may be a case where an inner hole 11b penetrating upward and downward as an inner hole 11 is formed in the soft shoe sole 1.

When the non-slip member (2) is coupled to the inner hole (11b), the non-slip member (2) is caught in the coupling support portion (13) as the end of the contact portion (4) protrudes to prevent the non-slip member (2) from being separated from the upper part of the shoe sole (1). This is to prevent departure.

In addition, when the non-slip member 2 coupled to the inner hole 11b is exposed to the upper part of the shoe sole 1 and the locking means 5 partially protrudes upward as shown in FIG. 19, the locking means ( 5) may serve as the acupressure protrusion 54, or, as shown in FIG. 20, an acupressure protrusion 54 protruding upward may be separately provided on the top of the locking means 5.

Alternatively, although not shown in the drawing, even when the height of the top of the shoe sole (1) and the top of the locking means (5) are the same and there is no acupressure protrusion (54) as shown in FIG. 20, when a user wearing shoes steps, If the soft shoe sole 1 is pressed by the generated load and the upper end of the hard locking means 5 is configured to be relatively high, the effect of the acupressure projection 54 as shown in FIG. 19 can be expected.

When the acupressure protrusions 54 are configured, the soles of the feet are stimulated when the user steps, thereby improving blood circulation and making the user healthier.

In another embodiment, when the non-slip member 2 is formed in a circular cross-sectional shape, the internal portion 11 to which the non-slip member 2 is coupled is also formed in a circular shape correspondingly. There is a risk that the non-slip member 2 may not be fixed inside the inner part 11 and may rotate depending on the direction and angle of the foot of the user wearing the shoes.

To prevent this, rotation prevention means 32 may be further provided to the non-slip member 2 as shown below.

By forming the non-slip member 2 in a polygonal or oval shape, the corresponding inner part 11 is also not formed in a circular shape so that it does not rotate.

Alternatively, even if the coupling portion 3, the locking means 5, and the grounding portion 4 are each formed in a circular shape, rotation may be prevented by forming them eccentrically so that the central axes of each circular arc do not coincide with each other.

Alternatively, as shown in FIGS. 21 to 23, one or two or more anti-rotation grooves are formed on the side of the coupling portion 3 in the vertical and longitudinal directions so as to be perpendicular to the direction of rotation, and the locking portion 13 is provided with the anti-rotation groove. Rotation may be prevented by further providing a correspondingly fitted protrusion.

The above-mentioned anti-rotation groove may be misunderstood as being somewhat similar to the shape of the side locking groove 55 seen above, but since it is not configured to prevent separation up and down, the configuration is different, so the separation prevention bump 551 is not necessary, so it opens upward. It is okay to do so.

However, even if it has a closed top shape, such as the side locking groove 55, it can function as a rotation prevention means to prevent rotation.

The manufacturing method of the shoe sole to which the non-slip member having the above structure is combined is as follows.

1. Non-slip member preparation step (S10)

Before manufacturing the shoe sole (1), the non-slip member (2) is first injected and cured in the non-slip member (2) injection mold, and then the non-slip member (2) is separated from the mold to prepare the non-slip member (2).

2. Shoe sole injection step (S20)

While the non-slip member 2 is being prepared, or after it is prepared, the shoe sole 1 is injected from the shoe sole 1 injection mold, and this process may further include a foaming process depending on the material.

3. First hardening step (S30)

In the shoe sole injection step (S20), the injected shoe sole (1) is cured to about 50 to 70% of its fully cured state inside the injection mold.

4. Core separation step (S40)

In the first curing step (S30), the core, which is a mold forming the inner part 11, is separated from the shoe sole 1 while the shoe sole 1 is not completely hardened.

When the shoe sole (1) is fully hardened, the core is difficult to separate, and during separation, the coupling support portion (13) formed in the inner portion (11) of the soft shoe sole (1) may be torn by the dislodged metal core. Because there is concern, we are trying to prevent it.

5. Secondary curing step (S50)

In the core separation step (S40), the shoe sole (1) from which the core has been separated is completely cured without its shape being deformed.

6. Shoe sole separation step (S60)

After going through the secondary hardening step (S50), the completely hardened shoe sole (1) is separated from the mold.

7. Non-slip member combining step (S70)

The non-slip shoe sole (1) is manufactured by combining the non-slip member (2) prepared in the non-slip member preparation step (S10) with the inner portion (11) of the shoe sole (1) separated in the shoe sole separation step (S60). Complete.

As described above, the most preferred embodiments of the present invention have been described in the detailed description of the present invention, but various modifications may be made without departing from the technical scope of the present invention. Therefore, the scope of protection of the present invention should not be limited to the above embodiments, but should be recognized to the technologies in the patent claims described later and to equivalent technical means from these technologies.

1:Shoe sole
11: Internal part
11a: My entry home
11b: My entry hole
12: Locking groove
13: Combined support portion
14: Ground coupling groove
15: Filling joint
2: Non-slip member
3:Connecting part
31: Central groove part
32: Rotation prevention means
4: Ground section
5:Hanging means
51: Top locking protrusion
511: Annular part
512:Extension cancer
513: Connection part
514: Separation part
52: Lateral locking protrusion
53: Slanted peripheral surface
54: Acupressure protrusions
55: Side locking groove
551: Breakaway bump
56:If you give me a slope
57: Middle groove step
S10: Non-slip member preparation step
S20: Shoe sole injection stage
S30: Primary curing step
S40: Core separation step
S50: Secondary hardening stage
S60: Shoe sole separation step
S70: Non-slip member combining step

Claims (8)

A non-slip member preparation step (S10) of injecting the non-slip member (2) from the non-slip member (2) injection mold, hardening and separating it;
A shoe sole injection step (S20) of injecting the shoe sole (1) from the shoe sole (1) injection mold while or after the non-slip member (2) is prepared in the non-slip member preparation step (S10);
A primary curing step (S30) in which the shoe sole (1) injected in the shoe sole injection step (S20) is cured to about 50 to 70% of its fully cured state;
A core separation step (S40) in which the core, which is a mold forming the inner part 11, is separated downward from the shoe sole 1 while the shoe sole 1 is not completely hardened in the primary curing step (S30);
A secondary curing step (S50) of completely curing the shoe sole (1) from which the core was separated in the core separation step (S40);
A shoe sole separation step (S60) in which the shoe sole (1), which has been completely cured through the secondary curing step (S50), is separated from the mold;
A non-slip member combining step (S70) of coupling the non-slip member (2) to the inner portion (11) of the shoe sole (1) separated in the shoe sole separating step (S60);
A method of manufacturing a shoe sole in which a non-slip member is combined, characterized in that it includes. delete delete delete delete delete delete delete

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