KR20230123797A - A Foot Article Integrated with an Arch Spring - Google Patents

Abstract

The present invention relates to an article of footwear having an arch spring coupling structure. The shoe article of the arch spring coupling structure includes an arch portion 13 in which the side portion of the middle portion of the foot is in contact with an upwardly convex curved surface shape; and the arch springs 20 and 30 coupled to the arch portion 13 and at least partially moved up and down and restored relative to other portions by elasticity.

Description

Footwear with an arch spring combined structure {A Foot Article Integrated with an Arch Spring}

The present invention relates to a shoe article having an arch spring coupling structure, and more particularly, to a shoe article having an arch spring coupling structure capable of protecting the health of a foot by coupling an arch spring to a shoe article such as an insole.

A shoe article such as an insole is disposed inside the shoe and has a function of cushioning, absorbing shock, distributing weight, or protecting a joint such as an ankle while being in direct contact with the foot. Due to the function of the insole, the insole material or structure of the insole can have a significant effect on the protection of foot health, and accordingly, insoles with various functions or materials are being made. An article of footwear needs to have various functions capable of protecting the health of the feet, and various technologies related thereto are known in the art. Patent Registration No. 10-1469554 discloses a shoe sole having a buffering action. In addition, Patent Registration No. 10-2170264 discloses a cushion shoe sole capable of posture correction. It is advantageous that the cushion or elastic function for the article of footwear is made of a structure that can be appropriately adjusted according to the weight or applied pressure while being provided to conform to the shape of the foot. However, the prior art does not disclose an article of footwear having such a structure.

The present invention is to solve the problems of the prior art and has the following object.

Prior art 1: Patent Registration No. 10-1469554 (Jiseong Jang, 2014.12.05, announcement) Functional shoe sole with improved cushion function Prior Art 2: Patent Registration No. 10-2170264 (Adjusted name, 2020.10.26. Notice) Cushion shoe sole capable of posture correction

An object of the present invention is to provide a shoe article having an arch spring coupling structure in which an arch spring is coupled with an arch spring that generates a cushion corresponding to the body weight or external pressure in an area corresponding to the arch of the sole while having elasticity.

According to a preferred embodiment of the present invention, a shoe article having an arch spring coupling structure includes an arch portion in which the side portion of the middle portion of the foot is in contact with an upwardly convex curved shape; and an arch spring coupled to the arch portion and at least a portion of which is moved up and down and restored relative to the other portion by elasticity.

According to another preferred embodiment of the present invention, the arch spring includes a fixed rim; A spring body with a part coupled to the fixed rim and capable of moving up and down with respect to the fixed rim; and at least one linear hole formed in the spring body.

According to another suitable embodiment of the present invention, an arch spring includes a central balancing tab; Extension bodies extending in both directions of the central normal tab; and at least one length hole formed in the elongated body.

According to another preferred embodiment of the present invention, a cushion pad inserted between the arch portion and the arch spring is further included.

A shoe article having an arch spring coupling structure according to the present invention may be an article that protects a joint such as an ankle or knee against various impacts while the foot is in contact with it, such as an insole or an insole. The footwear article according to the present invention has a function of reducing foot fatigue in the case of long-term walking exercise such as mountain climbing or walking. The footwear article according to the present invention absorbs shocks generated during various exercise processes while relieving pain caused by foot diseases such as plantar fasciitis. The footwear article according to the present invention can be applied to various types of footwear and the present invention is not limited thereby.

1 and 2 show an embodiment of a shoe article having an arch spring coupling structure according to the present invention.
3 and 4 show another embodiment of an article of footwear according to the present invention.
5 shows another embodiment of an article of footwear according to the present invention.
6 illustrates an embodiment of an article of footwear according to the present invention in which an arch spring and a cushion pad are combined.
7 and 8 show an embodiment of a shoe article according to the present invention in which cushion pads of various shapes are combined.

Below, the present invention will be described in detail with reference to the embodiments presented in the accompanying drawings, but the embodiments are for a clear understanding of the present invention, and the present invention is not limited thereto. In the following description, components having the same reference numerals in different drawings have similar functions, so repeated descriptions are not made unless necessary for understanding the invention, and well-known components are briefly described or omitted, but the present invention It should not be understood as being excluded from the embodiment of.

1 and 2 show an embodiment of a shoe article having an arch spring coupling structure according to the present invention.

Referring to Figures 1 and 2, the shoe article of the arch spring coupling structure is an arch portion 13 that is convex upwardly curved shape while the side portion of the middle portion of the foot is in contact; and the arch springs 20 and 30 coupled to the arch portion 13 and at least partially moved up and down and restored relative to other portions by elasticity.

An article of footwear may be an article that forms a shoe or is detachably coupled to a shoe, such as an insole, insole or outsole. The sole of the foot may be in direct contact with the shoe article or may be indirectly contacted. The shoe article may be made in a shape corresponding to the shape of the sole, for example, a front sole part 11 in contact with the front part of the foot and the toe; a rear bottom part 13 in contact with the rear part of the foot; and an arch portion 13. The front bottom part 11 may be gradually widened along the length direction and then narrowed again to extend along a part corresponding to the middle part of the foot, and then connected to the rear bottom part 12 which widens again. In this way, while the widths of the front bottom part 11 and the rear bottom part 12 change, they are connected to each other to form a part where the soles of the feet contact each other. The arch portion 13 may be formed on the inner side of the middle portion where the width is narrowed, and may have a shape corresponding to the arch of the foot. The foot arch may have a variety of shapes, and the article of footwear may have a predetermined predetermined shape. Due to this, the arch portion 13 needs to be supplemented in an appropriate way. According to one embodiment of the present invention, the arch spring 20 may be coupled to the arch portion 13, and the arch spring 20 is elastically deformed according to the applied pressure and is made of a material or structure having restoring force. can lose Specifically, the arch spring 20 includes a fixed rim 21; A spring body 22, a part of which is coupled to the fixed rim 21 and is movable up and down with respect to the fixed rim 21; and at least one linear hole 23 formed in the spring body 22 . The fixing rim 21 may have an elliptical band shape as a whole, and has a function of fixing the arch spring 20 to the arch portion 13 in contact with the arch portion 13 . The arch spring 20 may be bonded to and fixed to the arch portion 13 or coupled to be detachable. Specifically, the fixed rim 21 may be bonded and fixed to the arch portion 13 so that the arch spring 20 is coupled to the arch portion 13 in an adhesive manner. Alternatively, a side open pocket may be formed in the arch portion 13, and the arch spring 20 may be coupled to the arch portion 13 in such a way that the arch spring 20 is inserted into the pocket. The arch spring 20 can be coupled to the arch portion 13 in a variety of ways and the present invention is not limited thereby. The spring body 22 may extend from one side of the fixed rim 21 having an elliptical shape. The spring body 22 may have a shape covering the inside of the fixing rim 21 of an elliptical shape while being an elliptical shape as a whole. Specifically, the spring body 22 may be in a state in which one part extends to the other part of the fixed rim 21 so as to be convex downward in a state where one part is integrally fixed to the fixed rim 21 . In addition, other parts except for the part integrally combined with the fixed rim 21 may form a gap with the fixed rim 21, whereby the spring body 22 is fixed to the fixed rim 21 based on the portion It may be a structure capable of elastic movement up and down. At least one linear hole 23 may be formed in the spring body 22, and for example, a plurality of linear holes 23 having a strip shape may be formed separately at regular intervals while having different lengths. there is. By such a linear hole 23, it is possible to prevent partial strong pressure from being applied to the arch of the foot. The difference between foot arches having different shapes for each individual can be compensated for by the arch spring 20, and even if the arch portion 13 is not suitable for the shape of the individual foot arch, the arch spring 20 ) can be appropriately supplemented by

Referring to FIG. 2 , the arch body 22 of the arch spring 20 may have a downwardly convex shape, and the arch spring 20 may have a fixed inner portion and an open outer portion. The arch spring 20 may be made of an elastic material, for example, polyurethane, acrylic, polycarbonate, PET (polyethylene terephthalate), polyvinyl chloride or similar synthetic resin, but is not limited thereto. The fixing edge 21 of the arch spring 20 may have a higher modulus of elasticity than that of an insole or other parts of a shoe article, and one part of the arch body 22 of the arch spring 20 is open, thereby It may have a small modulus of elasticity compared to other parts of the article of footwear. Accordingly, the arch spring 20 may have a structure capable of easily responding to impact or pressure in the vertical direction while limiting deformation in the longitudinal direction. The arch spring 20 may be made of various structures to cope with the deformation of the arch portion 13 of the shoe article, and may be made of various materials having elasticity, and the present invention is not limited thereby.

3 and 4 show another embodiment of an article of footwear according to the present invention.

3 and 4, the arch spring 30 includes a central balance tab 31; extension bodies 32 extending in both directions of the central normal tab 31; and at least one length hole 33 formed in the elongated body 32 . The center balance tab 31 may be in the shape of a disk with a circumferential wall, and may be located in the middle part of the arch of the foot in the longitudinal direction. The circumferential wall 31 of the central balancing tab 31 may face inward, and may extend from the circumferential wall 31 in both directions of the elongated body 32 . The extension body 32 may be convex outwardly while being a rectangular shape as a whole. 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 have a curved surface shape that is convex outward. At least one strip-shaped length hole 33 may be formed in the extension body 32, whereby a plurality of strips may extend from the center balance tab 31 along the length direction. a front bottom portion 11 extending in a flat shape and then extending upward in a curved shape; And an arch portion 13 may be formed between the rear bottom portion 12 convex downward. The arch portion 13 may be convex upward and inward, and the arch spring 30 is centered so that both ends of the extension body 32 face the most convex portion upward while being fixed to the arch portion 13. While the balance tab 32 is positioned, the center balance tab 32 may be moved up and down by elasticity. In addition, the arch spring 30 as a whole may have a downwardly convex shape with the central balance tab 32 positioned at the bottom. With this structure, the center of the foot can be stably maintained while effectively absorbing the pressure applied to the arch of the foot by the center balance tab 32 . The center balance tab 32 may be appropriately set according to the shape of the arch portion 13 and is not limited to the presented embodiment.

5 shows another embodiment of an article of footwear according to the present invention.

Referring to FIG. 5 , the article of footwear further includes cushion pads 50a and 50b inserted between the arch portion 13 and the arch springs 20 and 30 . The arch springs 20 and 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 so that the arch springs 20 and 30 may be inserted and fixed in the insertion pocket. there is. A gap may be formed between the spring body 22 or connection body 32 of the arch springs 20 and 30 and the lower surface of the arch portion 13, and the cushion pads 50a and 50b are inserted into this gap. It can be. As shown on the left side of FIG. 5, cushion pads 50a and 50b suitable for each of the arch springs 20 and 30 may be prepared, respectively, and different cushion pads 50a for each of the arch springs 20 and 30. , 50b) may be inserted. Alternatively, cushion pads 50a and 50b having different materials, elasticity, or elasticity may be inserted into one of the arch springs 20 and 30 . The cushion pads 50a and 50b may be made of various shapes that can be inserted between the arch springs 20 and 30 and the arch portion 13, for example, a triangular shape as a whole and one side may be a curved shape. but not limited thereto. At least one cushion pad 50a, 50b may be inserted between the arch spring 20, 30 and the arch portion 13, and each cushion pad 50a, 50b has the same, similar or different elastic properties. can have The cushion pads 50a and 50b may be made of various materials, for example, silicone, elastomer, rubber or similar materials having elasticity or elasticity. The cushion pads 50a and 50b may be made of various materials or shapes, and the present invention is not limited thereby.

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

Referring to Figure 6, the arch spring is fixed rim 61 of the oval shape; A balance member 62 connecting two parts facing each other of the fixed rim 61 in a shape that halves the fixed rim 61; And while extending in a direction perpendicular to the balance member 62, both ends may be formed of an elastic guide member 63 coupled to the fixed rim 61. The balance member 62 may form a long radius of the fixed edge 61, and the elastic guide member 63 passes through the lower portion of the balance member 62 while extending in a direction perpendicular to the balance member 62. may be extended. The balance member 62 and the elastic induction member 63 may have a downwardly convex shape, and the fixing edge 61 may be fixed to the arch portion 13 . The complementary pads 64 , 65 , and 66 supplementing the arch springs may be attached to the front bottom part 11 and the rear bottom part 12 . In addition, a supplementary pad 65 may be coupled to the arch spring, and the supplemental pad 65 may be inserted between the balance member 62 and the elastic guide member 63 . The complementary pad 65 may have the same or similar function as the cushion pad described above while being made of the same or similar material. In addition, the complementary pad 65 may be coupled to the front bottom part 11 and the rear bottom part 12 to be detachable while having various shapes.

7 and 8 show an embodiment of a shoe article according to the present invention in which cushion pads of various shapes are combined.

Referring to FIG. 7 , supplementary pads 64 , 65 , and 66 may be coupled to the front bottom portion 11 , the rear bottom portion 12 , and the arch portion 13 to suit their respective shapes. Complementary pads 64, 65, 66 may be detachably or interchangeably coupled. Specifically, fastening protrusions are formed on the front bottom part 11, the rear bottom part 12, and the arch part 13, and at least one fastening hole 651 is formed on each of the complementary pads 64, 65, and 66. It can be. In addition, the fastening hole 651 is coupled to the fastening protrusion so that the supplementary pads 64, 65, and 66 are detachably coupled to the front bottom part 11, the rear bottom part 12, and the arch part 13.

Referring to FIG. 8 , complementary pads 64, 65, and 66 may be attached to the front bottom part 11, the rear bottom part, and the arch part, and cushion pads 84a, 84b, and 84c are additionally attached to the arch part. They can be detachably or interchangeably coupled. Specifically, a fixing groove 85 may be formed in an arch portion, and fastening tabs 851 , 852 , and 853 or fastening protrusions may be formed on a circumferential portion or a central portion of the fixing groove 85 . In addition, fastening holes 841, 842, and 843 may be formed in the cushion pads 84a, 84b, and 84c, and fastening tabs 851, 852, and 853 or fastening protrusions may be coupled to the fastening holes 841, 842, and 843. Thus, the cushion pads 84a, 84b, and 84c may be detachably or interchangeably coupled to the arch portion. The cushion pads 84a, 84b, and 84c may be coupled to the arch portion in a variety of ways, and as described above, may be coupled in a manner inserted into an arch spring. Each of the cushion pads 84a, 84b, and 84c may be made of a structure or material suitable for the structure of each person's foot, and the present invention is not limited thereby.

Although the present invention has been described in detail with reference to the presented embodiments above, those skilled in the art will be able to make various modifications and variations without departing from the technical spirit of the present invention with reference to the presented embodiments. . The present invention is not limited by these variations and modifications, but is limited only by the claims appended below.

11: front part of the foot 12: back part of the foot
13: arch portion 20, 30: arch spring
21: fixed frame 22: spring body
23: linear hole 31: center balance tap
32: extension body 33: length hole

Claims (4)

An arch portion (13) in which the side portion of the middle portion of the foot is in contact with an upwardly convex curved surface; and
An article of footwear having an arch spring coupling structure including arch springs (20, 30) coupled to the arch portion (13) and at least a portion of which is moved up and down and restored relative to the other portion by elasticity. The method according to claim 1, the arch spring 20 is fixed rim (21); A spring body 22, a part of which is coupled to the fixed rim 21 and is movable up and down with respect to the fixed rim 21; and at least one linear hole (23) formed in the spring body (22). The method according to claim 1, wherein the arch spring (30) comprises a center balance tab (31); extension bodies 32 extending in both directions of the central normal tab 31; and at least one length hole (33) formed in the elongated body (32). The shoe article according to claim 1, further comprising cushion pads (50a, 50b) inserted between the arch portion (13) and the arch springs (20, 30).