KR20070060634A - Shoes having multiple springs - Google Patents

Abstract

A footwear having many springs is provided to allow the whole of the heel or sole to efficiently absorb and damp the shock caused when the underside of the footwear gets to the ground surface during walking so as to prevent the body weight from being concentrated on a specific portion of the foot sole, and to prevent fatigue accumulated by the long wearing. The footwear having many springs comprises: an outsole(110), shaped in a form of a foot sole, and having a determined face and thickness so as to be in contact with the ground surface; many springs(120), arranged on the outsole(110) in a uniformly distributed manner so as to absorb and damp the shock caused by walking; a midsole(130), attached onto each upper end of the springs(120) so as to prevent the springs(120) from being deviated from their determined position, and having also a form of the foot sole; and an insole(140), arranged on the midsole(130) so as to be in direct contact with the foot sole.

Description

Shoes having multiple springs}

1 is a perspective view showing the overall structure of a shoe according to the present invention.

2 is an exploded view showing a coupled state of the shoe according to the present invention.

3 is a perspective view showing the structure of a spring according to the present invention.

Figure 4a is a bottom view showing the structure of the midsole according to the present invention.

4B is a cross-sectional view taken along the line AA ′ of FIG. 4A.

Figure 5a is a perspective view showing the structure of the outsole according to the present invention.

Figure 5b is a plan view showing the structure of the outsole according to the present invention.

FIG. 5C is a cross-sectional view taken along the line BB ′ of FIG. 5A.

6 is a plan view of the outsole according to another embodiment of the present invention.

<Description of Signs of Major Parts of Drawings>

100: shoe 110: outsole

112: spring insertion portion 114: insertion hole

116: spring insert coupling groove 120: spring

122: connecting member 124: female threaded portion

126: lower spring 130: midsole

132: mounting support groove 134: through hole

140: Insole

The present invention relates to a shoe having a plurality of springs, and more particularly, by coupling a plurality of springs to the entire heels of the shoe or to the sole of the shoe, the plurality of springs can efficiently absorb and mitigate the impact transmitted from the ground during walking. A shoe having a spring.

In general, shoes are provided with a cushioning function in shoe outsoles or midsoles for the purpose of distributing or distributing the load to the sole of the shoe to increase the protection of the foot under the human body load and to increase the fit of the shoe. Conventional techniques for constructing shoe soles of shoes for this purpose include forming an airbag using a cushioning effect of air at the back of the sole to relieve the body's load on the foot, or applying a high elastic midsole and insole or outsole. By combining the springs, the shoe was able to release the load on the body.

However, the prior art of the above-described structure is that the cushioning action of the sole is focused on the back of the shoe, that is, the heel that touches the ground first when the person walks, so that the front part of the foot first touches the ground due to the stride. However, the sole of a shoe that has a limited cushioning effect on the heel when the sole of the sole touches the ground has a buffering effect when the load is biased on the heel. Since the sole of the foot or the middle part of the foot must directly dissolve the load, a strong pressure acts on the foot and the cushioning function, which is not distributed and is biased, causes the body load to act excessively on a specific part, so that a person wears shoes for a long time When the feet accumulate fatigue, there was a problem that interferes with the activity.

In addition, in the case where only one spring is provided as in the conventional spring shoe, when the spring supports the bottom, flow occurs in the lateral direction, which makes it difficult for the wearer of the shoe to center.

The present invention is to solve the above-described problems, by inserting a plurality of springs to the entire upper surface of the outsole evenly positioned springs, it is possible to efficiently absorb and mitigate any shock transmitted from the ground while walking, By absorbing and mitigating the impact of the ground on the entire heel or the sole of the foot, the load is not concentrated on a specific part of the sole, so even if the user wears shoes for a long time, it does not interfere with fatigue accumulation or activity, and also includes a large number of springs. As a result, it is an object of the present invention to provide a shoe having a plurality of springs, which prevents a lateral flow when supporting the floor, compared to a conventional shoe having only one spring.

In order to solve the above technical problem, the present invention, the sole has a predetermined area and thickness in contact with the ground surface; A plurality of springs evenly distributed and coupled to the entire upper surface of the outsole to absorb and cushion shocks; Foot sole-shaped midsole is coupled to the top of the spring, to prevent the spring position deviation; And an insole positioned on the top surface of the midsole and in contact with the sole of the foot.

In addition, the spring is formed with a plurality of rings in a ring shape tapered from the bottom to the top, characterized in that the cross section of the ring is formed in a circular shape.

In addition, the upper surface of the outsole is a spring insertion portion of the disk shape that is formed in the tunnel-shaped insertion hole having a corresponding size so that the lower end of the spring can be inserted into the lateral direction; is attached, the spring insert is to be seated Spring insertion portion coupling groove having an inner diameter corresponding to the outer diameter so that it is further formed on the upper surface.

In addition, the spring insert is characterized in that the injection molded integrally with the outsole.

In addition, the front portion of the outsole has a shape of upward curvature to a predetermined height, characterized in that the end is formed to be attached to the midsole.

In addition, the upper end of the spring; is coupled to the lower portion of the midsole connecting member to be fixed; characterized in that further comprises.

In addition, the connection member is characterized in that the insert injection molding integrally with the spring.

In addition, the central portion of the connecting member through the through-hole of the midsole female threaded portion to be coupled to the bolt; is characterized in that formed further.

In addition, the lower surface of the midsole is characterized in that it further comprises a seating support groove formed in a corresponding shape so that the upper end of the connection member can be inserted coupling.

In addition, the plurality of springs is characterized in that the four provided only in the heel.

Hereinafter, the present invention will be described with reference to the accompanying drawings, and in the following description, when it is determined that a detailed description of a related well-known function or configuration may unnecessarily obscure the subject matter of the present invention, The description may be omitted.

1 is a perspective view showing the overall structure of the shoe according to the present invention, Figure 2 is an exploded view showing a coupling state of the shoe according to the present invention. Referring to FIGS. 1 and 2, the shoe 100 according to the present invention includes an outer sole 102 covering a foot and an outsole 110 forming a bottom, a plurality of springs 120, a midsole 130, and an insole. And 140.

The outsole 110 has an approximately sole shape and is an area in direct contact with the ground. Since the outsole 110 is a region in direct contact with the ground, it is preferable that the outsole 110 is formed of a relatively thick and elastic material so as to primarily absorb and mitigate the impact of the ground. In addition, the outsole 110 may have a thicker heel portion formed at a portion corresponding to the heel. In addition, the front portion of the outsole 110 has a shape of upward curvature to a predetermined height, the end may be formed to be attached to the midsole (130). However, the present invention is not limited to such a structure. This is because the outsole 110 may be formed in various shapes and thicknesses according to the use or design of the shoe.

In addition, each spring insertion portion 112 is attached to a position corresponding to the spring 120 on the top surface of the outsole 110, and the spring insertion portion coupling groove 116 on which the spring insertion portion 112 is seated is provided. By being formed on the upper surface, the spring lower end 126 can be coupled and fixed. The spring insertion portion 112 and the spring insertion portion coupling groove 116 will be described in more detail below.

The spring 120 is inserted and coupled to the spring insertion portion 112 attached to the upper surface of the outsole 110. When the spring 120 is inserted, the spring 120 is inserted into the insertion hole 114 formed in the spring insertion portion 112 laterally. In addition, the spring 120 may be formed with a plurality of rings in the form of a tapered ring from the bottom to the upper ring so that the upper ring and the lower ring do not overlap each other, the cross section of the spring 120 is formed in a circular shape It may be formed by a ring spring. A connection member 122 may be formed at an upper end of the spring 120 to be coupled to the midsole 130. This spring 120 will also be described in more detail below, which serves to absorb and mitigate the impact from the ground.

The midsole 130 may have a through hole 134 formed at a position corresponding to the spring 120. In addition, a mounting support groove 132 having a predetermined thickness may be further formed on the outer circumference of the through hole 134 so that the connection member 122 of the spring 120 may be coupled and supported. Here, bolts are respectively coupled to the through holes 134 formed in the midsole 130, and these bolts are directly screwed to the female screw part 124 formed at the center of the connection member 122 formed at the top of the spring 120. Can be.

Insole 140 is a portion in direct contact with the foot is preferably formed relatively thick in order to prevent a drop in wearing comfort by the bolt. Of course, the insole 140 also serves to mitigate the impact from the ground.

3 is a perspective view showing the structure of a spring according to the present invention. Referring to FIG. 3, the spring 120 of the present invention may be formed with a plurality of rings in the form of a tapered ring from the bottom to the top so that the upper ring and the lower ring do not overlap each other when compressed. The cross section of 120 may be formed as a ring spring formed in a circular shape.

In such an upper end portion of the spring 120, a connection member 122 may be formed to be coupled to the midsole 130. A female threaded portion 124 is formed at the center of the connection member 122 so that the bolt penetrating the midsole 130 can be screwed together.

In addition, the spring 120 and the connection member 122 is preferably formed integrally with a conventional insert injection molding. However, the formation method is not limited here.

4A is a bottom view showing the structure of the midsole according to the present invention, and FIG. 4B is a cross-sectional view taken along line AA ′ of FIG. 4A. Referring to FIGS. 4A and 4B, the midsole 130 of the present invention has a seating support groove 132 protruding a predetermined length toward the bottom so that the connection member 122 can be coupled and supported. The inner diameter of the seating support groove 132 and the outer diameter of the connection member 122 are formed to have substantially the same value, so that the connection member 122 is formed inside the seating support groove 132 so as not to be displaced.

In addition, a through hole 134 penetrating the midsole 130 is formed at the center of the connection member 122, and the bolt is penetrated through the through hole 134. In addition, the diameter of the through hole 134 is smaller than the head of the bolt, so that the head of the bolt does not fall into the lower region of the midsole 130.

The midsole 130 is formed in a substantially sole shape, and a plurality of through holes 134 and seating support grooves 132 are distributed over the entire area. The number of through holes 134 and seating support grooves 132 shown in the drawings is limited to the embodiments, and the present invention is not limited to the number of the through holes 134 and seating support grooves 132, and is changed to various numbers. It is possible.

Figure 5a is a perspective view showing the structure of the outsole according to the present invention, Figure 5b is a plan view showing the structure of the outsole according to the present invention, Figure 5c is a cross-sectional view taken along line BB 'of Figure 5a. 5A, 5B, and 5C, the upper surface of the outsole 110 of the present invention has a tunnel-shaped insertion hole having a corresponding size so that the spring lower end 126 can be inserted in the lateral direction. A spring insert 112 in the form of a disk 114 is formed.

The insertion hole 114 is formed in the shape of a circular ring of approximately 3/4 in plan view, and in the side view, the spring has a tunnel shape having an inner circumference of a size that can be inserted and guided by a predetermined length of the lower end 126 of the spring. It is formed in the insertion portion (112). In addition, the lower side of the insertion hole 114 is preferably formed in an open structure.

Outsole 110 of the present invention is formed with a spring insertion portion coupling groove 116 protruding a predetermined length toward the top so that the spring insertion portion 112 can be coupled and supported. The inner diameter of the spring insertion portion coupling groove 116 and the outer diameter of the spring insertion portion 112 are formed to have substantially the same value, so that the spring insertion portion 112 is out of position inside the spring insertion portion coupling groove 116. It is formed so as not to.

The spring insertion part 112 may be separately formed and then bonded to the top surface of the outsole 110 using an adhesive such as a bond, or may be formed integrally with the outsole 110, but the forming method may be It is not limited. The operator may insert the spring lower end 126 into the spring insertion part 112 insertion hole 114 of the outsole 110 and then completely engage the spring 120 by rotating the spring 120 in a predetermined direction.

A method of assembling a shoe 100 having a plurality of springs according to the present invention having the configuration as described above will be described.

First, the worker has an outsole 110 to which a plurality of spring inserting parts 112 are attached, a plurality of springs 120 having a connecting member 122 on the top, a plurality of through holes 134 and a seating support groove 132 are formed. The midsole 130 is prepared, and the insole 140 is prepared.

Subsequently, the worker sequentially couples the lower end of the spring 120 to all the spring inserts 112 formed in the outsole 110. That is, by further rotating the spring lower end 126 in a predetermined direction in the state of being inserted into the spring inserting portion 112, the spring 120 is firmly fitted to the spring inserting portion 112.

Subsequently, the worker places the midsole 130 on top of the spring 120. At this time, the connection member 122 formed on the top of the spring 120 is coupled to and supported in the seating support groove 132 formed in the midsole 130, respectively. In this way, the positions of the female threaded portion 124 formed in the connecting member 122 and the through hole 134 formed in the midsole 130 coincide with each other.

Subsequently, the operator engages the bolts with the through holes 134 of the midsole 130 and simultaneously rotates the bolts in a predetermined direction so that the bolts are coupled to the connection member 122 formed on the spring 120 under the midsole 130. .

Subsequently, the operator places the insole 140 on the upper portion of the midsole 130 so that the bolt is not exposed to the outside. Of course, in this way, the person's feet do not directly contact the bolt so that the fit is not degraded.

Thereafter, the worker to the outer shell 102 of the shoe is coupled to the midsole 130 by adhesive or sewing. By this method, the shoe 100 having a plurality of springs according to the present invention is completed.

Although the assembly method as described above has been described by way of example, a person manually, the assembly of the shoe 100 having a plurality of springs can be performed automatically or semi-automatically by a machine.

In addition, unlike the embodiment of Figures 2 to 5, it is also possible that the spring is provided with only about four heels, not the entire sole. That is, by having four springs only in the heel as shown in Figure 6, compared with the one spring in the conventional heel portion, the shock absorption is even, reducing the lateral bending as well as having a spring on the entire foot In this case, there is a problem of cost, and to compensate for this, a plurality of springs, for example, four springs may be installed only in the heel. 6 is an embodiment that satisfies most of the functions of the present invention while minimizing costs.

As described above, a shoe having a plurality of springs according to the present invention, by inserting a plurality of springs in the entire upper surface of the outsole or the entire heel of the upper surface of the outsole, the spring is evenly positioned, so that any position transmitted from the ground during walking Has an effect capable of efficiently alleviating absorption.

By absorbing and mitigating the impact of the ground on the soles or the entire heel, the load is not concentrated on a specific part of the sole, so that wearing shoes for a long time does not interfere with fatigue accumulation or activity, and only at the rear of the shoe. When the spring is coupled, it has an effect that can prevent the lateral flow when the spring supports the floor.

And, by attaching the spring insert of the corresponding shape so that the lower end of the spring can be coupled to the upper surface of the outsole, it is possible to simply insert the spring directly into the outsole than the coupling method to the upper surface using an adhesive. It can be, and has an effect that can be combined more stably.

Claims (10)

An outsole of predetermined area and thickness in contact with the ground as the sole shape; A plurality of springs evenly distributed and coupled to the entire upper surface of the outsole to absorb and cushion shocks; Foot sole-shaped midsole is coupled to the top of the spring, to prevent the spring position deviation; And Shoes having a plurality of springs comprising a; insole is located on the upper surface of the midsole contact the soles. The method of claim 1, The spring has a plurality of rings in the form of a tapered ring from the bottom to the top, the cross-section of the ring having a plurality of springs, characterized in that formed in a circular shape. The method of claim 1, On the upper surface of the outsole is inserted into a spring-like spring insertion portion is formed a tunnel-shaped insertion hole having a corresponding size so that the lower end of the spring can be inserted into the lateral direction; Shoes having a plurality of springs, characterized in that the spring insertion portion coupling groove having an inner diameter corresponding to the outer diameter so that the spring insertion portion can be seated; The method of claim 3, wherein The spring insertion portion has a plurality of springs, characterized in that the injection molded integrally with the outsole. The method of claim 1, Shoes having a plurality of springs, characterized in that the front portion of the outsole has a shape of upward curvature to a predetermined height, the end is formed to be attached to the midsole. The method of claim 1, Shoes having a plurality of springs, characterized in that the upper end of the spring further comprises a connection member to be coupled to the lower fixed to the midsole. The method of claim 6, The connecting member is a shoe having a plurality of springs, characterized in that the insert injection molding integrally with the spring. The method of claim 6, Shoes having a plurality of springs, characterized in that formed in the central portion of the connection member is further formed through the through-hole of the midsole to be coupled with a bolt. The method of claim 6, Shoes having a plurality of springs, characterized in that further comprising a; a lower support groove formed in a corresponding shape so that the upper end of the connection member can be inserted coupling. The method of claim 1, Shoes having a plurality of springs, characterized in that the plurality of springs is provided with only four heel portion of the upper surface of the outsole.

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