KR20100090047A

KR20100090047A - Air bag for midsole and shoes

Info

Publication number: KR20100090047A
Application number: KR1020090009310A
Authority: KR
Inventors: 김광식
Original assignee: 김광식
Priority date: 2009-02-05
Filing date: 2009-02-05
Publication date: 2010-08-13

Abstract

The present invention provides a shoe midsole airbag mounted on a heel portion of a shoe midsole: an air cushion chamber for an open space that is formed in the center to form a closed space, and is formed while surrounding a side surface of the air cushion chamber for the open space. Consisting of an air cushion room for a closed space filled with air; The air cushion chamber for the open space is in communication with the outside by an air flow hole formed in the ceiling surface or the bottom surface; It is characterized by.

Description

AIR BAG FOR MIDSOLE AND SHOES

The present invention relates to an air bag for a shoe midsole mounted on the heel portion of a shoe midsole for cushioning and a shoe equipped with the airbag for shoe midsole.

Since the foot of the person plays a role of supporting weight when walking or running, it is directly impacted from the ground, especially when exercising, the foot continuously receives an impact of several times the weight of the person exercising. The protection of the foot and the wearing of shock-absorbing shoes to alleviate the impact and to move freely plays an important role for the health of the person.

In general, shoes are divided into upper and midsoles and soles that are made as uppers, or shoe soles made of only midsoles without soles. Shoe sole is generally made of a material that can absorb the impact without slipping from the ground as a part in contact with the ground.

However, since the sole of the shoe, in particular, the sole of the shoe can not effectively absorb the impact, it has conventionally been used by mounting an air bag on the heel of the shoe midsole. This is because the heel, especially the heel, is the strongest impact from the ground.

An airbag for shoe midsoles is generally a combined method that is molded in the shoe midsole and mounted on the shoe midsole.

In addition, the conventional general airbag, by filling the air into the airbag to provide a cushion by the compression and restoration of the air.

However, the conventional airbag by the compression and restoration of the air, there is a problem that can be burst or torn when severe impact, and also by using the principle that the internal pressure changes according to the volume expansion and volume reduction of the air A cushion occurs, and the volume of the airbag inserted into the shoe midsole, in particular, the heel portion is limited, and thus there is a problem that the pressure change is so severe that it is difficult to provide a cushion suitable for the human body.

In addition, as a conventional technology integrated in the present specification, Korean Patent No. 10-0578331 "Shoe air bag equipped with a buffer spring and its manufacturing method" (the date of registration, May 3, 2006) has been published.

According to the related art, a plurality of corrugated pipes are formed in a cavity chamber through which air is injected into the air bag, and a plurality of corrugated pipes are formed by inserting and supporting the springs.

However, when the spring is mounted inside the airbag, the spring can provide the cushioning force by complementing the volume expansion and volume reduction caused by the air, but basically the spring is also a mechanical element in which the elastic force increases proportionally with the compression length. In order to realize a certain amount of elastic force as a spring mounted on a midsole having a relatively very low height, it is difficult to provide a cushion suitable for the human body because the elastic force of the spring has to be severely changed according to the change of its length. have.

The present invention has been made in order to solve the problems of the prior art as described above, is formed so that the airbag for shoe midsole mounted on the heel portion of the shoe midsole is divided into an air cushion chamber for the open space of the center and an air cushion chamber for the edge of the closed space In the air cushion chamber for a closed space, a cushion having a relatively high change by the filled air is provided. In the air cushion chamber for an open space, the air resistance by the air flow hole such as the upper hole for the air flow to the lower hole for the air flow is adjusted. By providing a cushion that is soft, that is not large change, it can provide a more comfortable cushion feeling to the wearer, and to design an airbag for shoe midsole to have a proper cushioning power according to the weight of the person or walking habits. In addition, the shoe midsole is mounted on the shoe I will.

In order to solve the above problems, the present invention, in the shoe midsole airbag is mounted on the heel portion of the shoe midsole: an air cushion room for the open space formed in the center to form a closed space, the air cushion room for the open space It is formed while wrapping the side of the air made of air cushion chamber for airtight space filled with air; The air cushion chamber for the open space is in communication with the outside by an air flow hole formed in the ceiling surface or the bottom surface; It is characterized by.

The air cushion chamber for the enclosed space includes a center junction having a flat shape, a first side wall extending upward from an edge of the center junction, and an enclosed space extended radially outward from an upper end of the first side wall. A ceiling portion, a second side wall extending downward from an edge of the ceiling of the enclosed space, and a bottom portion extending radially inward from a lower end of the second side wall, the top surface of which is joined to the bottom surface of the central joint portion. Space; The air cushion chamber for the open space is a space surrounded by an auxiliary sheet portion whose edge is joined to an upper surface of the ceiling of the sealed space facing the center joining portion, the first side wall and the center joining portion; The auxiliary sheet part forms a ceiling surface of the air cushion room for the open space, and the center joint part forms a bottom surface of the air cushion room for the open space; This is preferred.

In the above, it is preferable that the auxiliary cushion material of the synthetic resin material is mounted on the air cushion room for the open space, the air passage for the auxiliary cushion material is formed in the vertical direction.

The coil spring is mounted to the air cushion room for the closed space and surrounds the first side wall, the upper end of which is supported on the lower surface of the ceiling of the closed space, and the lower end of which is provided on the upper surface of the bottom of the air cushion chamber. It is desirable to be.

According to another aspect of the present invention, in a shoe comprising a midsole, the airbag for shoe midsole is mounted on the heel portion of the midsole.

As described above, the present invention is formed so that the airbag for the shoe midsole mounted on the heel portion of the shoe midsole is divided into an air cushion chamber for the open space and the air cushion chamber for the closed space of the center, and filled in the air cushion chamber for the sealed space To provide a cushion that is relatively changeable by air, and in the open space air cushion chamber, a soft, ie, unchanging cushion is provided by using the air resistance by the air flow holes such as the upper hole for air flow and the lower hole for air flow. By providing a more comfortable cushioning to the wearer, it is possible to design an airbag for the shoe midsole to have a proper cushioning power according to the weight of the person or walking habits, and to provide a shoe with such a function. .

Hereinafter will be described in detail the specific configuration and operation according to the embodiments of the present invention.

1 is a cross-sectional conceptual view of a shoe which is a first embodiment according to the present invention, FIG. 2 is a cross-sectional view of the shoe midsole of FIG. 1, FIG. 3 is a plan view of FIG. 2, and FIG. 4 is a AA cross-sectional view of FIG. 2. .

As shown, the shoe includes a midsole 10, an outsole 20, an upper 30, and the like as a conventional shoe.

The shoe illustrated in FIG. 1 is a shoe in which the bottom surface of a shoe sole known as an active walking shoe or a masai walking shoe forms an arc, but the present invention is not limited thereto and may be applied to conventional shoes such as shoes. Of course.

In this embodiment, the sole of the shoe is divided into the midsole 10 and the sole 20, and then shown to be bonded to each other, but according to the embodiment may be configured sole of the shoe sole sole 10.

In addition, in the present embodiment, the illustration of the insole to the taxon and the like is omitted, but any person skilled in the art to which the present invention belongs can be appropriately adopted and used.

The airbag 100 is mounted on the heel portion of the midsole 10.

The airbag 100 is inserted into the midsole 10 by an insert molding method when the midsole 10 is manufactured.

The airbag 100 is completely embedded in the midsole 10 and mounted so as not to be identified by an external line of sight, or both sides of the airbag 100 are partially exposed to both sides of the midsole 10 such that the airbag 100 is partially exposed. It can also be mounted so as to be exposed.

Hereinafter, the specific configuration of the airbag 100 will be described.

The airbag 100 includes a central junction 110, a first side wall 120, a sealed space ceiling 130, a second side wall 140, a bottom 150, and an auxiliary seat 160.

The central junction 110 is formed at the center, has a flat shape, and a lower surface thereof is a portion to which the bottom junction 150 is joined.

The first side wall 120 extends upward from the edge of the central junction 110.

The enclosed space ceiling portion 130 extends radially outward from the top of the first side wall 120.

The sealed space ceiling part 130 is a portion which forms the ceiling of the air cushion room 101 for the sealed space, which will be described later.

The second side wall 140 extends downward from the edge of the sealed space ceiling 130.

The bottom portion 150 extends radially inward from the lower end of the second side wall 140.

The upper surface of the central portion of the bottom 150 is bonded to the lower surface of the central junction 110.

In addition, the auxiliary sheet 160 is provided on the upper portion of the central junction 110.

The auxiliary sheet 160 is joined to the upper surface of the ceiling of the sealed space 130 so that the edge thereof faces the central junction 110.

By forming the airbag 100 in this manner, the airbag 100 is formed with an air cushion chamber 101 for the closed space and an air cushion chamber 102 for the open space.

That is, the air cushion chamber 102 for the open space forms a closed space by a space surrounded by the auxiliary seat 160, the first side wall 120, and the central junction 110, and forms the center of the air bag 100. Is formed.

In addition, the air cushion room 101 for the enclosed space is in a space surrounded by the central junction 110, the first side wall 120, the sealed space ceiling 130, the second side wall 140, and the bottom 150. As a result, a closed space is formed, and air having a constant pressure is filled therein.

That is, the air cushion chamber 101 for the closed space is filled with air having a predetermined pressure to provide a cushion by compressed air, and the air cushion chamber 101 for the sealed space 102 is an open space cushion chamber 102. It is formed while wrapping the sides.

Meanwhile, an upper hole 161 for air flow is formed in the auxiliary seat 160 forming the ceiling surface of the air cushion room 102 for the open space, and the bottom surface of the air cushion room 102 for the open space is formed. An air flow lower hole 111 is formed in the central junction 110, and an air flow lower hole 151 is also formed in the bottom portion 150 provided below the air flow lower hole 111.

In addition, the midsole 10 is formed with a first auxiliary passage 11 connected to the upper hole 161 for air flow, and a second auxiliary passage 12 connected to the lower holes 111 and 151 for air flow.

Preferably, the first auxiliary passage 11 communicates with the heel portion of the shoe, and the second auxiliary passage 12 preferably communicates with the heel portion of the shoe.

Of course, a small diameter hose may be mounted to maintain the air passages of the first auxiliary passage 11 and the second auxiliary passage 12.

When the shoe midsole airbag 100 of this type is manufactured, the air cushion chamber 101 for the closed space performs the same function as the conventional one, but the air cushion chamber 102 for the open space is compressed by the air bag 100. When the air stored in the air cushion chamber 102 for the open space exits through the air flow upper hole 161 to the air flow lower holes 111 and 151 or when the air bag 100 is restored, the air for the open space As the air flows into the cushion chamber 102, a cushion by the flow resistance of the air can be provided.

In addition, when the shoe midsole airbag 100 of this type is mounted on the heel portion of the shoe midsole 10, when the shoe heel collides strongly with the ground, that is, when the landing operation is taken while walking, the first auxiliary passage 11 is The air in the air cushion chamber 102 for the open space is blocked by the heel, and a strong flow path resistance is applied to the front heel of the shoe along the second auxiliary passage 12 through the lower holes 111 and 151 for air flow. It is discharged when it is received.

In addition, the second auxiliary passage 12 is blocked by the heel when the center of gravity of the sole moves to the front heel after the landing operation during walking, and is opened through the upper hole 161 for air flow along the first auxiliary passage 11. Air is introduced into the space air cushion chamber 102, and at this time, air is introduced while receiving a strong flow path resistance due to the small diameter of the upper hole 161 for air flow.

As a result, the shoe midsole airbag 100 of the present embodiment has a first cushion by compressed air of the air cushion chamber 101 for the closed space and the holes 111, 151, for the air flow of the air cushion chamber 102 for the open space. A second cushion by 161 is provided.

Such cushions can provide a more comfortable cushion to the wearer, and also make it possible to manufacture airbags or shoes with cushions suitable for the physical condition of the wearer.

That is, the airbag for the shoe and the shoe midsole of the embodiment as described above, when the sole of the wearer, particularly the heel portion is subjected to a strong impact from the ground, the air cushion room 102 for the open space provided inside provides a relatively soft cushion. In addition, the air cushion chamber 101 for the closed space located on the outside may provide a relatively strong cushion, thereby providing a relatively soft cushion as compared to a conventional air bag.

In addition, the manufacturer of the shoe or shoe midsole airbag is appropriately adjusted to the cushion of the air cushion chamber 101 for the closed space and the cushion of the open air cushion chamber 102, that is to fill the air cushion chamber 101 for the closed space By appropriately adjusting the pressure of the air to be used, and by appropriately adjusting the diameter of the upper hole 161 for the air flow to the diameter of the lower holes 111 and 151 for the air flow, the air cushion chamber 102 for the open space and the air cushion for the sealed space The airbag may be manufactured to provide a cushioning feeling suitable for the wearer's physical condition by the composite cushion of the seal 101, in particular according to the wearer's weight or foot size.

FIG. 5 is a view corresponding to FIG. 4 as an airbag which is a modification of the first embodiment.

In the case of FIG. 4, the central junction 110 is generally similar to a quadrangular shape, and the first side wall 120 is similar to a quadrangular pillar, and the auxiliary sheet 160 is a quadrangular sheet. In addition, in the case of the first embodiment, both sides 121 of the first side wall 120 are formed in the form of a wavy vertical wall and are designed to be stronger to the force acting vertically.

In the case of FIG. 5, the central junction 110 is generally circular in shape, and the first side wall 120 is similar in shape to a cylinder, and the auxiliary sheet part 160 is a sheet in a circular shape. As such, the air cushion chamber 102 for the open space may be formed in a pillar shape of various forms.

6 is a cross-sectional conceptual view of a shoe which is a second embodiment according to the present invention, and FIG. 7 is a cross-sectional view of the shoe midsole of FIG. 6.

In the present embodiment, the function of the air cushion chamber 101 for the closed space is the same, but the function of the air cushion chamber 102 for the open space is improved compared to the first embodiment.

The auxiliary cushion member 170 is mounted to the air cushion chamber 102 for the open space.

The auxiliary cushion material 170 of the synthetic resin material mounted on the air cushion room 102 for the open space is made of a softer material than the material of the midsole 10 such as a sponge to provide a very soft cushion.

The auxiliary cushion member 170 of the present embodiment fills the inside of the air cushion chamber 102 for the open space except for the air passage 171 for the auxiliary cushion member formed at the center thereof, and an upper surface thereof is a lower surface of the auxiliary sheet unit 160. And the lower surface is in contact with the upper surface of the central junction (110).

In addition, the air passage 171 for the auxiliary cushioning material is formed in the center portion of the auxiliary cushioning material 170 in the vertical direction.

Therefore, the auxiliary cushion member 170 has a form in which the hollow is formed in the vertical direction.

Since the air passage 171 for the auxiliary cushion material has a diameter larger than the diameter of the upper hole 161 for the air flow to the diameters of the lower holes 111 and 151 for the air flow, the air passage 171 for the auxiliary cushion material is fixed inside. The volume of air will be stored.

That is, in this embodiment, the amount of air stored in the air cushion chamber 102 for the open space corresponds to the volume of the air passage 171 for the auxiliary cushioning material, and the air of the air passage 171 for the auxiliary cushioning material is It is discharged to the outside or introduced from the outside according to the compression and restoration, and also to provide a constant cushion by the flow resistance of the upper or lower holes 111, 151, 161 for air flow.

Of course, the auxiliary cushion member 170 is compressed or restored together with the compression and restoration of the airbag 100 to provide a constant cushion.

Therefore, in the present embodiment, when the shoe midsole airbag 100 is compressed, the air cushion chamber 102 for the open space has a cushion by the auxiliary cushion member 170 as well as an air cushion using the resistance of the air.

As a result, the shoe midsole airbag 100 of the present embodiment has a first cushion by compressed air of the air cushion chamber 101 for the closed space and the holes 111, 151, for the air flow of the air cushion chamber 102 for the open space. The second cushion by 161 and the third cushion by the auxiliary cushion member 170 of the air cushion chamber 102 for the open space are provided.

8 is a cross-sectional conceptual view of a shoe according to a third embodiment of the present invention, and FIG. 9 is a cross-sectional view of the shoe midsole of FIG. 8.

In this embodiment, the function of the air cushion chamber 102 for the open space is the same as the second embodiment, but the function of the air cushion chamber 101 for the closed space is improved compared to the second embodiment.

The coil spring 180 is mounted to the air cushion room 101 for the closed space.

The coil spring 180 is made of metal and is provided to insert the first side wall 120 therein, that is, the coil spring 180 surrounds the first side wall 120.

In addition, the upper end of the coil spring 180 is supported on the lower surface of the ceiling ceiling portion 130, the lower end of the coil spring 180 is supported on the upper surface of the bottom 150.

Therefore, the coil spring 180 is compressed or restored together with the air cushion chamber 101 for the closed space during compression and restoration of the airbag 100 to provide a constant cushion.

Therefore, in the present embodiment, when the shoe midsole airbag 100 is compressed, the air cushion chamber 101 for the closed space has an elastic cushion by the coil spring 180 as well as the air cushion by the compression of the air.

As a result, the shoe midsole airbag 100 of the present embodiment has a first cushion by compressed air of the air cushion chamber 101 for the closed space and the holes 111, 151, for the air flow of the air cushion chamber 102 for the open space. Second cushion by 161, third cushion by auxiliary cushion material 170 of air cushion chamber 102 for open space, and fourth by coil spring 180 of air cushion chamber 101 for closed space. To provide a cushion.

The above embodiments are only preferred embodiments of the present invention, and the technical idea of the present invention may be variously modified or adjusted by those skilled in the art. Such modifications and adjustments fall within the scope of the present invention if they use the technical idea of the present invention.

The present invention can be used as an airbag for a shoe midsole or a shoe.

1 is a cross-sectional conceptual view of a shoe which is a first embodiment according to the present invention;

2 is a cross-sectional view of the shoe midsole of FIG.

3 is a plan view of FIG.

4 is a cross-sectional view taken along line A-A of FIG.

5 is a view corresponding to FIG. 4 as a modification of the shoe midsole of FIG. 1;

6 is a cross-sectional conceptual view of a shoe which is a second embodiment according to the present invention;

FIG. 7 is a cross-sectional view of the shoe midsole of FIG. 6;

8 is a cross-sectional conceptual view of a shoe which is a third embodiment according to the present invention;

FIG. 9 is a cross-sectional view of the shoe midsole of FIG. 8; FIG.

10: midsole 11: first secondary passage

12: Second secondary passage

20: outsole 30: upper

100: airbag for shoe midsole 101: air cushion room for a closed space

102: air cushion room for open space

110: center junction 111: lower hole for air flow

120: first side wall 130: ceiling of the sealed space

140: second side wall

150: bottom 151: lower hole for air flow

160: auxiliary sheet portion 161: upper hole for air flow

170: auxiliary cushioning material 171: air passage for auxiliary cushioning material

180: coil spring

Claims

In the airbag for shoe midsole mounted on the heel portion of the shoe midsole: An air cushion room for an open space formed in the center to form a closed space, and formed while wrapping the side of the air cushion room for the open space, the air inside Consisting of an air cushion room for a filled enclosed space; The air cushion chamber for the open space is in communication with the outside by an air flow hole formed in the ceiling surface or the bottom surface; Shoe midsole airbags, characterized in that.

According to claim 1:

The air cushion chamber for the enclosed space includes a central junction having a flat shape, a first side wall extending upward from an edge of the central junction, an enclosed space ceiling extending radially outward from an upper end of the first side wall, and A space surrounded by a second side wall extending downward from an edge of the sealed space ceiling portion and a bottom portion which is extended radially inward from a lower end of the second side wall and whose upper surface is joined to the bottom surface of the central joint portion;

The air cushion chamber for the open space is a space surrounded by an auxiliary sheet portion whose edge is joined to an upper surface of the ceiling of the sealed space facing the center joining portion, the first side wall and the center joining portion;

The auxiliary sheet part forms a ceiling surface of the air cushion room for the open space, and the center joint part forms a bottom surface of the air cushion room for the open space;

Shoe midsole airbags, characterized in that.

The method according to claim 1 or 2,

Is mounted on the air cushion room for the open space, airbag for shoe midsole, characterized in that the auxiliary cushion material of synthetic resin material is provided in which the air passage for the auxiliary cushion material in the vertical direction is provided.

The method of claim 3, wherein

It is mounted to the air cushion room for the closed space, is provided while wrapping the first side wall, the upper end is supported on the lower surface of the ceiling of the sealed space, the lower end is provided with a coil spring is supported on the upper surface of the bottom portion Shoe midsole airbags.

In a shoe comprising a midsole,

Shoes for the midsole of any one of claims 1 to 4, characterized in that the shoe is mounted on the heel portion of the midsole.