US20230255309A1

US20230255309A1 - Shoe article with an arch spring

Info

Publication number: US20230255309A1
Application number: US17/857,718
Authority: US
Inventors: Kyung Won Park
Original assignee: HBT CO Ltd
Current assignee: HBT CO Ltd
Priority date: 2022-02-17
Filing date: 2022-07-05
Publication date: 2023-08-17
Also published as: KR20230123797A; JP2023120132A; KR102670412B1

Abstract

Provided is a shoe article with an arch spring. A shoe article with an arch spring comprises an arch part 13 contacting a side part of a foot middle part and having a convex curved shape upwardly; and an arch spring 20, 30 formed at the arch part 13, wherein at least one part of the arch spring 20, 30 has an elastic property for moving in an up and down direction and being recovered in an original shape.

Description

BACKGROUND OF THE INVENTION

Field of the Invention

The present invention relates to a shoe article with an arch spring, in particular the shoe article such as an insole with the arch spring for protecting a foot health.

Description of the Related Art

A shoe article such as an insole may be placed at an inner part of the shoe to contact a foot for providing a cushion, absorbing an impact, distributing a weight or protecting an angle joint. Therefore, an insole stuff or an insole structure may affect a protection of a foot health. Hence, a variety of insoles with various functions have been made of various stuffs. The shoe article needs to have various function to protect the foot health, and a plurality of skills is known in this art. Korean registration number 10-1469554 discloses a shoe insole with a buffer function. And also, Korean registration number 10-2170264 discloses a cushion shoe insole capable of correcting a posture. The cushion or elasticity function for the shoe article may be provided advantageously in a way that a shape of the function is suitable for that of the foot and the function can be regulated according to the weight or an applied pressure. But the known skill discloses no shoe article with such function.
The present invention is to solve the known art problem, and has a purpose as below.

PURPOSE OF THE INVENTION

The purpose of the present invention is provided with a shoe article with an arch spring to have an elastic property and to generate a cushion corresponding to a body weight or an outer pressure at an arch portion of a sole.

SUMMARY OF THE INVENTION

In one embodiment of the present invention, a shoe article with an arch spring comprises an arch part contacting a side part of a foot middle part and having a convex curved shape upwardly; and an arch spring formed at the arch part, wherein at least one part of the arch spring 20, 30 has an elastic property for moving in an up and down direction and being recovered in an original shape.
In other embodiment of the present invention, the arch spring 20 comprises a fixing edge; a spring body a part of which is coupled to the fixing edge and capable of moving in the up and down direction; and a linear hole formed at the spring body.
In another embodiment of the present invention, the arch spring 30 comprises a center balancing tap; an extending body extending in both direction of the center balancing tap; and at least one length hole formed at the extending body.
In still another embodiment of the present invention, the shoe article further comprises a cushion pad inserted between the arch part and the arch spring.

BRIEF DESCRIPTION OF THE DRAWINGS

FIGS. 1 and 2 shows an exemplar shoe article with an arch spring according to an embodiment of the present invention.

FIGS. 3 and 4 shows an exemplary shoe article with an arch spring according to other embodiment of the present invention.

FIG. 5 shows an exemplary shoe article according to another embodiment of the present invention.

FIG. 6 shows an exemplary shoe article with an arch spring and a cushion pad according to still another embodiment of the present invention.

FIGS. 7 and 8 shows an exemplary shoe article with various cushion pad according to still another embodiment of the present invention.

DETAILED DESCRIPTION OF EXEMPLARY EMBODIMENTS

Exemplary embodiments of the present invention will be described herein below with reference to the accompanying drawings.
FIGS. 1 and 2 shows an exemplar shoe article with an arch spring according to an embodiment of the present invention.
Referring to FIGS. 1 and 2 , a shoe article with an arch spring comprises an arch part 13 contacting a side part of a foot middle part and having a convex curved shape upwardly; and an arch spring 20, 30 formed at the arch part 13, wherein at least one part of the arch spring 20, 30 has an elastic property for moving in an up and down direction and being recovered in an original shape.
The shoe article may become a part of a shoe or an item capable of combined to or separated from the shoe, for example, the shoe article may be an insole or the like. A sole may contact the shoe article directly or indirectly. The shoe article may have a shape corresponding to the sole, for example, the shoe article may comprise a front bottom part 11 contacting a front part of the sole and toes; a rear bottom part 12 contacting a rear part of the sole; and the arch part 13. The front bottom part 11 may extend with a width larger gradually along a longitudinal direction, and then the width may become narrower to extend to a middle part corresponding to a middle part of the sole. And the middle part may be connected to the rear part with the width larger. In such way, the front bottom part 11 may be connected to the rear bottom part 12 with the width changed along the longitudinal direction to form the contacting part. The arch part 13 may be formed at an inner side of the middle part where the width becomes narrower, and the arch part 13 may have a shape corresponding to an arch of the foot. The foot arch may have various shapes, but the shoe article may have a predetermined constant shape. Therefore, the arch part 13 may be complemented in a suitable way, according to one embodiment of the present invention, the arch spring 20 may be coupled to the arch part 13, and the arch spring 20 may be made of a material or may have a structure to be deformed elastically according to an applied pressure and be recovered in an original shape or the arch spring 20 may have a structure. In particular, the arch spring may 20 comprise a fixing edge 21; a spring body 22 a part of which is coupled to the fixing edge 21 and capable of moving in the up and down direction; and a linear hole 23 formed at the spring body 22. The fixing edge 21 may have an ellipse strip shape in general, and contact arch part 13 to secure the arch spring 20 to the arch part 13. The arch spring 20 may be adhered for being fixed firmly or may be coupled in a removable way. Specifically, the fixing edge 21 may be adhered to the arch part 13 to be fixed firmly and hence the arch spring 20 may be coupled to the arch part 13 by being adhered. The arch spring 20 may be coupled to the arch part 13 in other way. An open pocket may be formed at one side of the arch part 13, and the arch spring 20 may be inserted within the pocket for being coupled. The arch spring 20 may be coupled to the arch part 13 in various ways, not limited to. The spring body may extend from one side of the fixing edge 21 having the ellipse shape. The spring body 22 may have the ellipse shape in general, and may have a shape to cover an inner part of the fixing edge 21 with the ellipse shape. In particular, one part of the spring body 22 may be secured to the fixing edge 21 in an integrated form and may extend to the other part of the fixing edge 21 in a downward convex form. And also, the rest part not to be integrated to the fixing edge 21 may make a gap to the fixing edge, and hence, the spring body 22 may have a structure to move elastically in the upward and downward direction based on the fixing part to the fixing edge 21. At least one linear hole 23 may be formed at the spring body 22, for example, a plurality of linear holes 23 with strip shapes may be formed with different length each other and with the plurality of linear holes 23 separated uniformly each other. It is prevented that a strong pressure is applied to the foot arch owing to such structure of the linear holes 23. The arch spring 20 may compensate a personal difference of an individual foot arch, and the arch spring 20 can compensate the personal difference suitably even though the foot arch is not proper to the individual.
Referring to FIG. 2 , the arch body 22 may have a downward convex shape. The inner part of the arch spring 20 is fixed, and the outer part of the arch spring 20 may have an open shape. The arch spring 20 may be made of an elastic material, for example, made of a polyurethane, an acryl, a polycarbonate, a polyethylene terephthalate, a polyvinylchloride or the like, not limited to. The fixing edge 21 may have a larger elastic property than the insole or the other part of the shoe article have, and one part of the arch part 22 may become in an open state, and thereby the arch body 22 may have a larger elastic property that the other part of the shoe article has. Hence, a deformation of the arch spring 20 along the longitudinal direction may be limited, but the arch spring 20 may be deformed easily by an impart or a pressure in an upward or a downward direction. The arch spring 20 may be made in various wary for reacting the formation of the arch part 13 suitably, and may be made of various materials, not limited to.
FIGS. 3 and 4 shows an exemplary shoe article with an arch spring according to other embodiment of the present invention.
Referring to FIGS. 3 and 4 , the arch spring 30 comprises a center balancing tap 31; an extending body 32 extending in both direction of the center balancing tap 31; and at least one length hole 33 formed at the extending body 32.
The center balancing tap 31 may become a circular plate with edge walls, and the center balancing tap 31 may be placed at a middle part along the longitudinal direction. The edge walls may be directed to an inner direction, and the extending body 32 may extend from the edge walls in both directions. The extending body 32 may become a rectangular shape in general, and the extending body 32 may become convex outwardly. And also, a length of an outer side forming the extending body 32 may become large than that of an inner side forming the extending body 32, and the outer side and the inner side may become a convex curved shape. At least one length hole 33 with a strip shape may be formed, and thereby a plurality of strips may extend from the center balancing tap 31 in longitudinal direction. The shoe article may comprise the front bottom part 11 extending in a plain shape and in an upwardly curved shape; and the arch part 13 formed between the front bottom part 11 and the rear bottom part 12 having a downwardly convex shape. The arch part 13 may have an upwardly and inwardly convex shape, and the both end parts of the extending body 32 may be fixed at the arch part 13. And the center balancing tap 31 may be located at a part where the extending body 32 is the most convex. And also, the arch spring 30 may have a downwardly convex shape, and the center balancing tap 31 may be located at a lowest place. Thereby, a pressure applied to the foot arch may be absorbed effectively by the center balancing tap 31, and the balance of the foot may be maintained stably. The center balancing tap 31 may have various shapes according to the shape of the arch part 13, not limited to.
FIG. 5 shows an exemplary shoe article according to another embodiment of the present invention.
Referring to FIG. 5 , the shoe article further comprises a cushion pad 50 a, 50 b inserted between the arch part 13 and the arch spring 20, 30.
The arch spring 20, 30 may be fixed by being adhered at the arch part 13 of the shoe, or the arch spring 20, 30 may be fixed by being inserted into an inserting pocket formed at the arch part 13. A gap may be formed between the spring body 22 or the extending body 32 of the arch spring 20, 30 and the arch part 13, and the cushion pad 50 a, 50 b may be inserted into the cap. As shown in the left part of FIG. 5 , each suitable cushion pad 50 a, 50 b may be prepared for each arch spring 20, 30, and each cushion 50 a, 50 b may be inserted into each arch spring 20, 30. And also, different cushion pads 50 a, 50 b with different materials or elasticities may be inserted at one arch spring 20, 30. The cushion pad 50 a, 50 b may be made in various shapes to be inserted suitably between the arch spring 20, 30 and the arch part 13, for example, the cushion pad may become a triangular shape with one side curved, not limited to. At least one cushion pad 50 a, 50 b may be inserted between the arch spring 20, 30 and the arch part 13, and each cushion pad 50 a, 50 b may have similar elastic properties or different elastic properties each other. The cushion pad 50 a, 50 b may be made of various materials, for example. Made of a silicon, an elastomer, a rubber or the like with elastic property. The cushion pad 50 a, 50 b may be made of various materials, not limited to.
FIG. 6 shows an exemplary shoe article with an arch spring and a cushion pad according to still another embodiment of the present invention.
Referring to FIG. 6 , the arch spring may comprise a fixing edge 61 having an ellipse shape; a balancing member 62 dividing the fixing edge 61 into two parts and connecting both end parts facing each other; and an elastic guiding member 63 coupled to the fixing edge 61 extending in a direction vertical to the balancing member 62 and both end parts of which are combined to the fixing edge 61. The balancing member 62 may form a long diameter of the fixing edge 61, and the elastic guiding member 63 may extend in a direction vertical to the balancing member 62 and may extend below the balancing member 62. The balancing member 62 and the elastic guiding member 63 may become a downwardly convex shape, and the fixing edge 61 may be fixed at the arch part 13. In addition to such coupling of the arch spring, complementary pads 64, 65 may be adhered at the front bottom part 11 and the rear bottom part 12. And also, the complementary pad 65 may be coupled to the arch spring, and the complementary may be inserted between the balancing member 62 and the elastic guiding member 63. The complementary pad 65 may be made of similar or identical materials for the cushion pad explained above and may have function similar or identical to the cushion pad. And also, the complementary pad 65 may have various shapes and may be coupled to the rear bottom part 11 and the rear bottom rear 12.
FIGS. 7 and 8 shows an exemplary shoe article with various cushion pad according to still another embodiment of the present invention.
Referring to FIG. 7 , the complementary pads 64, 65, 66 may be coupled to the front bottom part 11, the rear bottom part 12 and the arch part in suitable ways, respectively. The complementary pads 64, 65, 66 may be coupled in a removable and exchangeable way. In particular, coupling protrusions may be formed at the front bottom part 11, the rear bottom part 12 and the arch part 13, and at least one coupling hole 651 may be formed at each complementary pad 64, 65, 66. And the coupling holes 651 may be coupled to the coupling protrusions to couple complementary pad 64, 65, 66 to the front bottom part 11, the rear bottom part 12 and the arch part in a removable way.
Referring to FIG. 8 , the complementary pads 64, 65, 66 may be adhered to the front bottom part 11, the rear bottom part 12 and the arch part 13, and furthermore the cushion pads 84 a, 84 b, 84 c may be coupled in a removable or exchangeable way. In particular, a fixing groove may be formed at the arch part 13, and coupling taps 851, 852, 853 or coupling protrusions may be formed at the peripheral part or at the centering part. And also, coupling holes 841, 842, 843 may be formed at the cushion pads 84 a, 84 b, 84 c, and the coupling tabs 851, 852, 853 may be coupled to the coupling holes 841, 842, 843 to combine the cushion pads 84 a, 84 b, 84 c to the arch part in a removable or exchangeable way. The cushion pad may be combined to the arch part in various ways, and may be combined in a manner that the cushion pad 84 a, 84 b, 84 c may be inserted into the arch spring as mentioned above. Each cushion 84 a, 84 b, 84 c may be made of a material or structure suitable for each structure of a personal foot, not limited to.
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims.

Claims

What is claimed is:

1. A shoe article with an arch spring, comprising:

an arch part contacting a side part of a foot middle part and having a convex curved shape upwardly; and

an arch spring formed at the arch part,

wherein at least one part of the arch spring has an elastic property for moving in an up and down direction and being recovered in an original shape.

2. The shoe article according to claim 1, wherein the arch spring comprises a fixing edge; a spring body a part of which is coupled to the fixing edge and capable of moving in the up and down direction; and a linear hole formed at the spring body.

3. The shoe article according to claim 1, wherein the arch spring comprises a center balancing tap; an extending body extending in both direction of the center balancing tap; and at least one length hole formed at the extending body.

4. The shoe article according to claim 1, wherein the shoe article further comprises a cushion pad inserted between the arch part and the arch spring.