JP2023120132A - Shoe article with arch spring coupling structure - Google Patents

Abstract

To provide a shoe article with an arch spring coupling structure.SOLUTION: The invention relates to a shoe article with an arch spring coupling structure. The shoe article with the arch spring coupling structure comprises an arch part 13 contacting a side part of a foot middle part and having a curved shape convex upward; and an arch spring 20, 30 coupled to the arch part 13, where at least one part thereof is elastic enough to move up and down and then be restored relative to other parts.SELECTED DRAWING: Figure 1

Description

TECHNICAL FIELD The present invention relates to a shoe article with an arch spring structure, and more particularly, to a shoe article with an arch spring structure capable of protecting the health of feet by combining an arch spring with a shoe article such as an insole.

A shoe article such as an insole is placed inside the shoe and has the function of cushioning, absorbing shock, distributing weight or protecting the joint such as the ankle while being in direct contact with the foot. Due to the function of the insole, the insole material or insole structure can have a significant effect on foot health protection, and insoles with various functions and materials are produced accordingly. Articles of shoes need to have various functions that can protect the health of feet, and various techniques related to this are known in the art. US Pat. No. 6,300,000 discloses a shoe sole that performs a cushioning action. Further, Patent Document 2 discloses a cushioned shoe sole capable of correcting posture. Advantageously, the cushioning or elastic function for the article of footwear consists of a structure that is adapted to the body weight or applied pressure while being provided to suit the shape of the foot. However, the prior art does not disclose a shoe article having such a construction.

SUMMARY OF THE INVENTION The present invention is intended to solve the problems of the prior art, and has the following objectives.

Korean patent registration number 10-1469554 (Jang Ji-sung, 2014.12.05. Announced) Functional shoe sole with improved cushioning function Korean Patent Registration No. 10-2170264 (Cho Jeongmyeong, 2020.10.26. Announcement) Cushion soles that can correct posture

An object of the present invention is to provide a shoe article having an arch spring connection structure, which is elastic and has an arch spring that generates a cushion corresponding to body weight or external pressure in the area corresponding to the arch of the sole of the foot. be.

According to a suitable embodiment of the present invention, a shoe article having an arch spring connection structure includes: an arch portion that forms an upwardly convex curved surface while the lateral portion of the middle portion of the foot is in contact; an arch spring, at least a portion of which is resiliently moved up and down and restored relative to the other portion;

According to another suitable embodiment of the present invention, the arch spring comprises a fixed frame; a spring body partly coupled to the fixed frame and capable of moving up and down with respect to the fixed frame; two linear holes;

According to yet another suitable embodiment of the present invention, the arch spring includes a center balancing tap; an extension body extending in both directions of the center balancing tap; and at least one slot formed in the extension body.

According to yet another suitable embodiment of the invention, further comprising a cushion pad interposed between the arch portion and the arch spring.

A shoe article having an arch spring connection structure according to the present invention can be an article, such as an insole or an insole, that protects joints such as ankles or knees against various impacts while the foot is in contact with the foot. The article of footwear according to the present invention has the function of reducing foot fatigue during long walking exercises such as mountain climbing or race walking. The shoe article according to the present invention absorbs shock generated during various exercise processes, and relieves pain caused by foot diseases such as plantar fasciitis. The article of footwear according to the invention is applicable to a wide variety of shoes, and the invention is not limited thereby.

1 is a drawing showing an embodiment of a shoe article with an arch spring coupling structure according to the present invention; 1 is a drawing showing an embodiment of a shoe article with an arch spring coupling structure according to the present invention; FIG. 4 is a drawing showing another embodiment of an article of footwear according to the present invention; FIG. FIG. 4 is a drawing showing another embodiment of an article of footwear according to the present invention; FIG. FIG. 10 is a drawing showing still another embodiment of an article of footwear according to the present invention; FIG. FIG. 10 is a drawing showing an embodiment of an article of footwear according to the present invention in which an arch spring and a cushion pad are combined; 4 is a drawing showing an embodiment of a shoe article according to the present invention, to which cushion pads of various shapes are combined; 4 is a drawing showing an embodiment of a shoe article according to the present invention, to which cushion pads of various shapes are combined;

The present invention will now be described in detail with reference to embodiments presented in the accompanying drawings, which are for a clearer understanding of the invention and which the invention is not limited to. not to be In the following description, components having the same reference numerals in different drawings have similar functions, so for better understanding of the invention, they will not be described repeatedly unless necessary, and known components will be simplified. described or omitted should not be construed as excluded from the embodiments of the present invention.

Figures 1 and 2 illustrate an embodiment of an arch spring coupling structure shoe article according to the present invention.

Referring to FIGS. 1 and 2, the article of shoes having an arch spring connection structure includes an arch portion 13 which forms an upwardly convex curved surface while the lateral portion of the middle portion of the foot is in contact, and is connected to the arch portion 13. arch springs 20, 30, at least one of which is elastically moved up and down relative to the other and restored.

A shoe article can be an article that forms a shoe or is detachably connected to a shoe, for example an article such as an insole, an insole or a sole. The sole of the foot is in direct or indirect contact with the article of shoe. The shoe article consists of a shape corresponding to the shape of the sole of the foot, for example, a front sole 11 with which the front part of the foot and the toes are contacted; a back sole 12 with which the rear part of the foot is contacted; and an arch part 13; can consist of The front bottom part 11 gradually widens along the longitudinal direction, narrows again, extends along the middle part of the foot, and is connected to the back bottom part 12 whose width widens again. In this way, the front bottom part 11 and the back bottom part 12 are connected to each other while varying in width, thereby forming a part where the sole of the foot is in contact. The arch portion 13 is formed on the medial surface of the narrowed middle portion and can be shaped to correspond to the arch of the foot. A foot arch can have a variety of shapes, and an article of footwear can have a predetermined and constant shape. This requires that the arch portion 13 be supplemented in a suitable manner. According to an embodiment of the present invention, an arch spring 20 is coupled to the arch portion 13, and the arch spring 20 may be made of a material or structure that is elastically deformed by applied pressure and has a restoring force. Specifically, the arch spring 20 includes a fixed frame 21; a spring body 22 partially coupled to the fixed frame 21 and capable of moving up and down with respect to the fixed frame 21; and at least one linear hole formed in the spring body 22. 23; The fixing frame 21 has an elliptical band shape as a whole and has a function of contacting the arch portion 13 to fix the arch spring 20 to the arch portion 13 . The arch spring 20 is adhesively fixed or detachably coupled to the arch portion 13 . Specifically, the fixed frame 21 is glued and fixed to the arch portion 13, and the arch spring 20 is joined to the arch portion 13 by adhesion. Alternatively, the arch spring 20 is coupled to the arch portion 13 in such a manner that a pocket with an open side is formed in the arch portion 13 and the arch spring 20 is inserted into the pocket. Arch spring 20 may be coupled to arch portion 13 in a variety of ways, and the invention is not so limited. A spring body 22 extends from one side of an elliptical fixed frame 21 . The spring body 22 may have an elliptical shape as a whole and may have a shape that covers the inside of the elliptical fixed frame 21 . Specifically, one side portion of the spring body 22 is integrally fixed to the fixed frame 21 , and the spring body 22 may extend downward to the other portion of the fixed frame 21 in a convex shape. In addition, the parts other than the part integrally coupled with the fixed frame 21 can form a gap with the fixed frame 21, so that the spring body 22 can be positioned relative to the part fixed to the fixed frame 21. It can be a structure that allows elastic movement up and down. At least one linear hole 23 is formed in the spring body 22. For example, a plurality of strip-shaped linear holes 23 having different lengths may be separated at uniform intervals. Such a linear hole 23 prevents partial strong pressure on the arch of the foot. Such an arch spring 20 compensates for differences in foot arches having different shapes for each individual, and even if the arch part 13 is not suitable for the shape of the individual's foot arch, the arch spring 20 appropriately compensates. .

Referring to FIG. 2, the spring body 22 of the arch spring 20 may be convex downward, and the arch spring 20 may have a fixed inner portion and an open outer portion. The arch spring 20 is made of an elastic material, such as polyurethane, acryl, polycarbonate, PET (polyethylene terephthalate), polyvinyl chloride, or similar synthetic resin, but is not limited thereto. The fixed frame 21 of the arch spring 20 can have a large elastic modulus compared to other parts of the insole or shoe article, and the spring body 22 of the arch spring 20 is in a state where one side is open, thereby , may have a lower modulus of elasticity than the rest of the article of footwear. This allows the arch spring 20 to have a structure that can easily respond to vertical impact or pressure while limiting longitudinal deformation. The arch spring 20 can be of various constructions to accommodate deformation of the arch portion 13 of the article of shoe, and can be made of various elastic materials, which does not limit the scope of the present invention.

Figures 3 and 4 illustrate another embodiment of an article of footwear according to the invention.

3 and 4, the arch spring 30 includes a center balancing tap 31; an extension body 32 extending in both directions of the center balancing tap 31; and at least one slot 33 formed in the extension body 32; The central balance tap 31 may be disc-shaped with a peripheral wall and located in the longitudinally mid-portion of the foot arch. A peripheral wall 31 of the center balancing tap 31 can be directed inwardly and extends in both directions from the peripheral wall 31 to the extension body 32 . The extension body 32 may be convex outward while being generally square. In addition, the outer side of the extension body 32 is relatively longer than the inner side, and the outer side and the inner side may be curved outwardly. At least one strip-shaped elongated hole 33 is formed in the extension body 32 so that a plurality of strips may extend longitudinally from the center balancing tap 31 . An arch portion 13 may be formed between a front bottom portion 11 extending flatly and then curved upward; and a rear bottom portion 12 projecting downward. The arch portion 13 is convex upwards and inwards, and the arch spring 30 is positioned such that both ends of the extension body 32 are fixed to the arch portion 13 while the center balancing tap 32 is positioned opposite the most upwardly convex portion. Meanwhile, the center balancing tap 32 moves up and down due to elasticity. Also, the arch spring 30 as a whole may be downwardly convex with the center balancing tap 32 at the lowest position. Such a structure effectively absorbs the pressure exerted on the arch of the foot by the center balancing tap 32 while stabilizing the center of the foot. The center balancing tap 32 is suitably set by the shape of the arch portion 13 and is not restricted to the embodiment presented.

Figure 5 illustrates yet another embodiment of an article of footwear according to the present invention.

Referring to FIG. 5, the article of shoe further includes cushion pads 50a, 50b interposed between the arch portion 13 and the arch springs 20,30. The arch springs 20, 30 may be fixed by being attached to the arch portion 13 of the shoe, or an insertion pocket may be formed in the arch portion 13 and the arch springs 20, 30 may be inserted into the insertion pocket. A gap is formed between the spring body 22 or the connecting body 32 of the arch springs 20, 30 and the lower surface of the arch portion 13, and the cushion pads 50a, 50b are inserted into the gap. As shown on the left side of FIG. 5, cushion pads 50a and 50b suitable for the arch springs 20 and 30 are prepared, respectively, and different cushion pads 50a and 50b are inserted into the arch springs 20 and 30, respectively. Alternatively, one arch spring 20, 30 is inserted with cushion pads 50a, 50b having different materials, stretchability or elasticity. The cushion pads 50a and 50b may have various shapes inserted between the arch springs 20 and 30 and the arch portion 13. For example, the cushion pads 50a and 50b may have a triangular shape as a whole and a curved shape on one side. not to be At least one cushion pad 50a, 50b is inserted between the arch springs 20, 30 and the arch portion 13, and each cushion pad 50a, 50b can have the same or similar or different elastic properties. The cushion pads 50a and 50b may be made of various materials, for example, elastic or stretchable silicon, elastomer, rubber, or similar materials. The cushion pads 50a, 50b are made of various materials or have various shapes, and the present invention is not limited thereby.

FIG. 6 illustrates an embodiment of an article of footwear according to the present invention in which an arch spring and cushion pad are combined.

Referring to FIG. 6, the arch spring comprises an elliptical stationary frame 61; a balancing member 62 connecting two opposing portions of the stationary frame 61 in a shape that bisects the stationary frame 61; an elastic guide member 63 extending in the direction and having both ends coupled to the fixed frame 61; The balancing member 62 may form the major axis of the fixed frame 61 , and the elastic guiding member 63 extends through the lower portion of the balancing member 62 while extending vertically with respect to the balancing member 62 . The balancing member 62 and the elastic guiding member 63 are convex downward and the fixing frame 61 is fixed to the arch portion 13 . Such arch spring coupling causes complementary pads 64 , 65 , 66 to be attached to front bottom 11 and back bottom 12 . A complementary pad 65 is coupled to the arch spring and inserted between the balancing member 62 and the elastic guiding member 63 . The complementary pad 65 may be made of the same or similar material as the cushion pad and have the same or similar function. In addition, the complementary pad 65 has various shapes and is separably coupled to the front bottom 11 and the back bottom 12 .

7 and 8 illustrate embodiments of shoe articles according to the present invention to which cushion pads of various shapes are combined.

Referring to FIG. 7, complementary pads 64, 65, 66 are coupled to the front bottom 11, back bottom 12 and arch portion 13 to suit their respective shapes. Complementary pads 64, 65, 66 are detachably or interchangeably coupled. Specifically, fastening protrusions may be formed on the front bottom portion 11, the back bottom portion 12, and the arch portion 13, and at least one fastening hole 651 may be formed on each complementary pad 64, 65, 66. FIG. A fastening hole 651 is coupled to the fastening projection, and the complementary pads 64 , 65 and 66 are separably coupled to the front bottom 11 , the back bottom 12 and the arch portion 13 .

Referring to FIG. 8, supplementary pads 64, 65 and 66 are attached to the front bottom 11, back bottom and arch portions, and cushion pads 84a, 84b and 84c are detachably or replaceably coupled to the arch portions. be. Specifically, a fixing groove 85 may be formed in the arch portion, and fastening taps 851 , 852 , 853 or fastening protrusions may be formed around or centrally around the fixing groove 85 . In addition, fastening holes 841, 842, and 843 are formed in the cushion pads 84a, 84b, and 84c, and fastening taps 851, 852, and 853 or fastening protrusions are coupled to the fastening holes 841, 842, and 843, so that the cushion pads 84a, 84b, 84c is detachably or replaceably coupled to the arch portion. The cushion pads 84a, 84b, 84c are coupled to the arch portions in a variety of ways, and are coupled to the arch springs as described above. Each cushion pad 84a, 84b, 84c is of construction or material suitable for each individual's foot structure, and the invention is not limited thereby.

Although the present invention has been described in detail with reference to the presented embodiments, those skilled in the art can refer to the presented embodiments to make various modifications within the scope of the technical spirit of the present invention. and modified inventions can be made. The present invention is not limited by such variations and modifications, but only by the scope of the claims.

11: Front of foot 12: Rear of foot 13: Arch part 20, 30: Arch spring 21: Fixed frame 22: Spring body 23: Linear hole 31: Center balance tap 32: Extension body 33: Slot

Claims (4)

an arch portion (13) that forms an upward convex curved surface while the side portion of the middle portion of the foot is in contact;
Arch springs (20) and (30) which are coupled to the arch part (13) and at least part of which is elastically moved up and down with respect to other parts and restored;
A shoe article of arch spring connection structure comprising: The arch spring (20) is
a fixed frame (21);
a spring body (22) partially coupled to the fixed frame (21) and capable of moving up and down with respect to the fixed frame (21);
at least one linear hole (23) formed in the spring body (22);
The arch spring coupling structure shoe article of claim 1, comprising: The arch spring (30) is
a centrally balanced tap (31);
an extension body (32) extending in both directions of the center balancing tap (31);
at least one slot (33) formed in the extension body (32);
The arch spring coupling structure shoe article of claim 1, comprising: 2. The arch spring coupling structure shoe article according to claim 1, further comprising cushion pads (50a) (50b) inserted between the arch portion (13) and the arch springs (20) (30).

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