KR100687182B1 - shoes heels for absorbing impact force and mitigating a pressure concentration of a foots and diabetic shoes therefor - Google Patents

Abstract

The present invention relates to a shoe heel to absorb shock and relieve pressure concentration, and diabetic comprising the same. To this end, it has a first hardness and extends rearward along the longitudinal direction of the shoe 5 from a horizontal portion 12 transverse to the longitudinal direction of the shoe 5 and an inner end of both ends of the horizontal portion 12. A front member 10 in which the extended portion 14 is integrally formed; A rear member 50 having a second hardness lower than the first hardness, the front surface of which has a shape fit with the horizontal portion 12 and the extension portion 14; And a flooring material 70 having an upper surface 79 bonded to the bottom surface of the shape-fitting front member 10 and the rear member 50.

Shoe heel, diabetes, length, extension, hardness, shore, ethylene vinyl acetate, pressure concentration relief

Description

Shoe heel for absorbing impact force and mitigating a pressure concentration of a foots and diabetic shoes therefor}

1 is a perspective view of a shoe heel 100 to absorb shock and relieve pressure concentration in accordance with a first embodiment of the present invention;

FIG. 2 is a right side view of the shoe heel 100 shown in FIG. 1;

3 is an exploded perspective view of the shoe heel 100 shown in FIG.

4 is a plan view of the shoe heel 100 shown in FIG. 1 attached to the shoe 5;

FIG. 5 is a partial perspective view schematically showing a path through which a pressure (force) center point moves on the sole 7 of the shoe 5 shown in FIG. 4;

6 is a perspective view of the shoe sole 100 is built in the spring according to the second embodiment of the present invention,

7 is a perspective view of a shoe sole 100 having an air bag therein according to a third embodiment of the present invention;

8 is a perspective view of a shoe heel 100 made of an airbag according to a fourth embodiment of the present invention,

9a to 9c are graphs of pressure distribution and pressure (force) center point movement trajectories applied to the soles of shoes using conventional diabetic shoes imported from foreign countries,

9d is a pressure distribution and pressure (force) center point movement trajectory graph acting on a shoe sole using shoes according to the present invention;

10a to 10c is a three-dimensional graph of the pressure distribution acting on the sole for conventional diabetes,

Figure 10d is a three-dimensional graph of the pressure distribution acting on the sole for the shoe according to the present invention.

<Description of Symbols for Main Parts of Drawings>

1: waistband,

5: shoes,

7: sole of the sole,

9: the first ground part when walking,

10: front member,

10a: airbag front member,

12: horizontal part,

14: extension part,

20: movement trajectory of the center of pressure (force),

50: rear member,

50a: airbag rear member,

52: outer side,

54: inner side,

58: adhesive side,

70: flooring,

72: flat,

75: slope,

79: top view,

100: shoe heel,

110: through hole,

120: spring,

140: airbag.

The present invention relates to shoe heel and diabetes mellitus, and more particularly, to a shoe heel to absorb shock and relieve pressure concentration, and diabetic comprising the same.

Recently, as the prevalence of diabetes increases in Korea, the number of patients with many complications is increasing rapidly. Accordingly, the incidence of diabetic foot lesions has increased significantly as in developed countries, and interest in them has also increased. Foot lesions are common in diabetics and, once they occur, they can be costly and time consuming to treat.

Foot ulcers are a common complication in diabetes and cause hospitalization, increase mortality and lengthen hospital stays. This can be an important cause of lower extremity amputation. Therefore, it is important to determine risk groups early and block risk factors to prevent them, and strengthen foot management education and preventive efforts.

The mechanism of the development of diabetic foot ulcers is thought to be due to a number of complex causes, and whether or not peripheral neuropathy and peripheral vascular disease caused by diabetes is important. In addition, it is pointed out that the limitation of joint movement area, formation of callus, walking abnormality, foot deformity, improper foot care, and increase of excessive pressure on a certain part due to shoes cause injury. Therefore, as a program for preventing diabetic foot ulcers, it is very important to reduce foot pressure by using appropriate shoes, socks and foot skin callus removal.

However, in Korea, currently imported or prescribed diabetes, which is prescribed for medical use in the United States, or prescribed shoes made by some braces / shoes companies. This is because the burden of medical expenses and many products that have not been scientifically proven in terms of their effectiveness are more nationally required for continuous improvement efforts. And in diabetic neuropathy patients, the measurement of plantar pressure may be used to determine the risk area of the foot lesion and to compare the effects of the treatment of lowering plantar pressure, in addition to determining the risk group.

Accordingly, the present invention has been made to solve the above problems, the first object of the present invention is to absorb the shock applied to the foot (foot) when walking and to evenly distribute the pressure to protect the joints of the lower body of the human body And to provide a shoelace to reduce pressure concentration that can prevent diabetic foot ulcers and diabetes mellitus containing the same.

It is a second object of the present invention to absorb a shock applied to a foot (foot) during walking and to improve the pressure distribution to reduce the concentration of pressure that can reduce the fatigue of the foot, and diabetic shoes including the same. To provide.

Objects of the present invention as described above,

An extension having a first hardness and extending laterally along the longitudinal direction of the shoe 5 from an inner end of both ends of the transverse part 12 and both ends of the transverse part 12. A front member 10 in which the portion 14 is integrally formed;

A rear member 50 having a second hardness lower than the first hardness, the front surface of which has a shape fitting with the horizontal portion 12 and the extension portion 14; And

It can be achieved by a shoe heel to absorb the shock and relieve pressure concentration, characterized in that the bottom member 70 is bonded to the bottom surface of the shape-fitting front member 10 and the rear member 50. Can be.

The Shore C hardness of the first hardness is preferably 15 or more higher than the Shore C hardness of the second hardness. More specifically, the first hardness of the front member 10 is the Shore C hardness of 45 to 75, and the rear member ( The second hardness of 50) is most preferably Shore C hardness 30 to 60.

In addition, the front member 10 and the rear member 50 is preferably a material having a shock absorption and rebound elasticity of 50% or more, for example, the front member 10 is ethylene vinyl acetate (EVA), the rear member 50 ) May be suited to a Duflex material.

In addition, a surface of the flooring material 70 that contacts the ground in correspondence with the upper surface 79 may be formed of a predetermined plane 72 and an inclined surface 75 extending from the plane 72 and having a predetermined inclination angle.

In addition, at least one through hole 110 may be vertically formed in the front member 10, and a compression coil spring 120 may be further provided inside the through hole 110 to improve a restoring force.

In addition, the inside of the front member 10 and / or the rear member 50 is preferably air bag 140 for absorbing the shock and improve the restoring force.

In addition, the front member 10 is an airbag front member 10a as a whole, and

The rear member 50 may be an airbag rear member 50a as a whole.

As another embodiment of the present invention, in shoes,

The shoe heel 100 described above;

Shoe sole 7 fixed to the upper portion of the shoe heel 100; And

Includes; waistband (1) inserted into the sole of the shoe (7),

It may be most preferred that the rear end of the brace 1 is located on the front member 10.

Other objects, specific advantages and novel features of the invention will become more apparent from the following detailed description and the preferred embodiments described in conjunction with the accompanying drawings.

The invention will now be described in detail with reference to the accompanying drawings, in which preferred embodiments are shown.

First, prior to describing the embodiments of the present invention, terms used in the present specification are defined as follows. As used herein, the term "front" means a front part (toe direction) with respect to the longitudinal direction of the shoe, and "rear" means a back part (foot back gingham direction) with respect to the longitudinal direction of the shoe. The term "inner side" refers to the side of the foot where the pair of shoes are in contact with each other, and the term "outer side" refers to the side of the foot opposite to the side where the pair of shoes are in contact with each other.

1 is a perspective view of a shoe sole 100 to absorb shock and relieve pressure concentration in accordance with the present invention, Figure 2 is a right side view of the shoe sole 100 shown in FIG. 1 and 2, the shoe heel 100 according to the present invention is largely composed of the front member 10, the rear member 50, the flooring 70.

The front member 10 is made of a soft synthetic resin such as ethylene vinyl acetate (EVA), polyurethane, etc., and is made of a material having excellent shock absorption and resilience (50% or more), and has Shore C hardness of 45 to 75. This front member 10 is disposed in front of the shoe heel 100, both ends in the transverse direction has an asymmetrical shape.

The rear member 50 is a soft synthetic resin such as ethylene vinyl acetate (EVA), polyurethane, and is made of a material having excellent shock absorption and resilience (50% or more), and Shore C hardness is 30 to 60. An example of such a rear member 50 may be Duflex, which is a registered trademark of Comtech Chemical Co., Ltd. in Korea. The rear member 50 has a shape coupling with the asymmetric front member 10.

The flooring material 70 is a member in which the shoe heel 100 actually touches the ground, and is commonly bonded and fixed to the lower surfaces of the joined front member 10 and the rear member 50. The material of the flooring material 70 uses a material such as conventional rubber and synthetic resin.

3 is an exploded perspective view of the shoe heel 100 shown in FIG. 1. As shown in FIG. 3, each part of the front member 10 may be largely divided into a horizontal portion 12 and an extension portion 14. The horizontal portion 12 is formed to span the transverse direction of the shoe, the extension portion 14 is formed at the inner end of both ends of the horizontal portion 12, the extension is extended by a predetermined length to the rear.

Each part of the rear member 50 is mainly comprised by the outer side part 52, the inner side part 54, and the adhesive surface 58. As shown in FIG. The adhesive surface 58 is a surface facing forward and bonded to the front member 10. The outer portion 52 is the outer side of the shoe heel 100, the inner portion 54 is the inner side of the shoe heel 100.

Each part of the flooring material 70 consists of the upper surface 79, the inclined surface 75, and the plane 72. As shown in FIG. The upper surface 79 is a plane and is a surface bonded to the common lower surface of the bonded front member 10 and the rear member 50.

The lower surface corresponding to the upper surface 79 is composed of a plane 72 and an inclined surface 75. The plane 72 is a surface parallel to the upper surface 79, and the inclined surface 75 is predetermined from the plane 72. It is an extended surface with a tilt.

FIG. 4 is a plan view of the shoe heel 100 shown in FIG. 1 attached to the shoe 5. As shown in FIG. 4, when the pair of shoes 5 are viewed from above, the shoe heel 100 is fixed to the shoes 5 such that the extensions 14 of the front member 10 are adjacent to each other.

6 is a perspective view of the shoe sole 100 is built in the spring according to the second embodiment of the present invention. As shown in FIG. 6, three to five through holes 110 are vertically formed in the front member 10, and a compression coil spring 120 is embedded in the through holes 110. This is to prevent deterioration of the restorability of the front member 10 due to long repeated use. Therefore, the spring constant of the spring 120 may be the same or similar to that of the front member 10. This is because the spring 120 has a higher durability than synthetic resins.

7 is a perspective view of the shoe sole 100 in which the airbag 140 is built according to the third embodiment of the present invention. As shown in FIG. 7, the airbag 140 is embedded in the middle region of the front member 10. This is for the restoring action of the spring 120 in the second embodiment described above. The airbag 140 is formed of an elastic synthetic resin outer shell, the inside is filled with a gas or liquid such as air, water and the like.

8 is a perspective view of a shoe heel 100 made of an airbag according to a fourth embodiment of the present invention. As shown in FIG. 8, the airbag front member 10a is entirely made of an airbag, and the airbag rear member 50a is also made entirely of an airbag. These airbags are formed of elastic synthetic resin and filled with a gas or liquid such as air or water.

Hereinafter, a description will be given of the shoe heel to absorb the shock and the pressure concentration configured as described above and the operation principle of diabetes. First, FIG. 5 is a partial perspective view schematically showing a path in which the pressure (force) center point moves on the shoe sole 7 (aka sole) of the shoe 5 shown in FIG. 4. As shown in FIG. 5, the inner surface of a conventional shoe sole 70 includes a waistband 1 for supporting a load. This waistband 1 is made of metal or hard synthetic resin, and the pressure (force) center point starting from the heel moves through the waistband 1 to the toe part.

By the way, in the present invention, the rear end of the thrust (1) is positioned to lie on the front member (10). If the rear end of the waistband 1 is short enough not to reach the front member 10, severe bending of the shoe occurs at the unconnected part when the pressure (force) center point moves forward. This leads to excessive settling of the germination, causing high plantar pressure and rapid fatigue. And, if the rear end of the thrust (1) is longer than the front member 10 to the rear member 50, the shock absorbing performance of the rear member 50 is reduced and the smooth movement of the pressure (force) is made The change in the left and right movement becomes severe without losing.

A walking principle related to this will be described with reference to FIG. 5. In normal walking of normal people, the sole where the sole first touches the ground is slightly laterally, not the rear of the heel. That is, the first ground portion 9 of FIG. 5 is the portion that first touches the ground when walking. Thus, the center of pressure (force) generated at the initial ground portion 9 begins to move forward as the area of the sole gradually contacts the ground.

That is, as shown in Figure 5, the movement trajectory 20 of the pressure (force) center point is generated at the first ground portion (9) to pass through the rear member 50 and the front member 10 sequentially and then the waist 1) is moved to the toe part. At this time, the shock is absorbed while passing the rear member 50 having a low hardness and a large area, and the pressure is adjusted by adjusting the pronation occurring in the subtalar joint while passing through the front member 10. Force) The center point is moved to the front by fastening the waistband (1) without shaking from side to side. To this end, as described above, the Shore C hardness of the front member 10 should be 15 or more higher than the Shore C hardness of the rear member 50.

When walking, the center of pressure (force) is not simply a linear movement from rear to front. That is, the movement trajectory of the pressure (force) center point has a longitudinal component moving from the rear to the front and a transverse component moving from the outer portion 52 of the shoe to the inner portion 54. As described above, the longitudinal component of the pressure (force) center point movement is sequentially moved along the rear member 50, the front member 10, and the waistband 1. Therefore, uniform plantar pressure is formed in the longitudinal direction.

Then, the transverse component of the pressure (force) center point movement is generated at the outer portion 52 and moved to the inner portion 54. At this time, the impact due to the initial ground in the outer portion 52 is absorbed by the rear member 50 having a low hardness, and in the inner portion 54, the extension 14 of the front member 10 having the high hardness is subjected to the internal motion. This stops while gently adjusting so that the rolling motion from the inside of the foot does not occur excessively. Thus, even plantar pressure is formed in the transverse direction.

Hereinafter, by using the shoe hoof of the present invention having the configuration and operation principle as described above and using the same diabetes, it will be experimentally compared with conventional imported diabetes. ,

First, the plantar pressure was measured using the insole sensor (Pedar system, Novel Gmbh, Germany) for each of 10 adult men and women, and the walking speed was maintained at 2.5 (± 0.2) km / h, which is the usual walking level, 6 The distance of m was made to reciprocate. In addition, the maximum plantar pressure at the step was measured except for the step data with the most deviation.

9 is a result of such an experiment, first, Figures 9a to 9c is a pressure distribution and pressure (force) center point movement trajectory graph acting on the soles of shoes using conventional diabetic shoes imported from foreign countries, Figure 9d Pressure distribution and pressure (force) center point movement trajectory graph acting on the sole of the shoe using the shoe according to the invention. In FIG. 9, each color represents a size classification of pressure, in which pink is the highest pressure of 30 N / cm ² or higher, and red indicates that the next higher pressure of 22 N / cm ² is in operation. Represents the movement trajectory of the center of pressure (force).

As can be seen in Figures 9a to 9c, the conventional diabetic imported is a high pressure action, the pressure distribution is not uniform, it can be seen that the movement trajectory of the pressure center point also proceeds to shake a lot from side to side. On the other hand, in FIG. 9D, which tests the diabetes according to the present invention, the magnitude of the pressure is much lower than that of FIGS. 9A to 9C, shows a uniform pressure distribution, and the movement trajectory of the pressure center point is more linear. The linearity of this pressure trajectory at the center of pressure means that the foot is in a stable posture and rapidly rolling forward without fluctuations left and right, which is another proof that the pressure distribution on the sole is uniform.

10A to 10C are three-dimensional graphs of pressure acting on the sole of the conventional diabetic, and FIG. 10D is a three-dimensional graph of pressure acting on the sole of the diabetic according to the present invention. As can be seen from the comparison of FIGS. 10A to 10C with FIG. 10D, it can be seen that the diabetic according to the present invention has a lower pressure and a flatter pressure distribution. This lowers and equalizes the pressure on the sole to give a comfortable and comfortable feeling.

In fact, 20 subjects who participated in the study were surveyed for post-experimental wear and tear. The common opinion was that the walking shoes were softer, more comfortable, less prone to walking and less leg and waist than walking shoes.

Although, in the present invention, the shoe sole of the present invention has been described with respect to men and women's formal shoes, but it is of course necessary to be applied to various shoes such as sneakers, hiking boots, casual shoes without being limited thereto.

In addition, the shoe heel of the present invention is also not limited to diabetes, but may be applied to shoes such as arthritis patients, the disabled, athletes.

In addition, the present invention refers to a specific material for each part of the shoe heel, which is exemplary and may be any material having a hardness and hardness difference presented in the present invention.

In addition, the size and ratio of the front member and the rear member may be adjusted according to the size of the shoe heel (for example, large, medium, small) and the degree of diabetic foot ulcer. Accordingly, differences in dimensions should be construed as not departing from the scope of the present invention.

Therefore, according to one embodiment of the present invention as described above, it is possible to prevent the diabetic foot ulcer by absorbing the shock applied to the foot (foot) when walking, and evenly distributed the pressure.

In addition, it is possible to reduce the fatigue of the foot by lowering the pressure applied to the foot (foot) during walking and improving the circulation of blood flow by making the distribution uniform.

In addition, since the pressure distribution is more uniform than that of conventionally imported diabetic, it is more comfortable, and it is possible to produce diabetic at low cost, which can effectively prevent diabetic foot ulcers.

Although the present invention has been described in connection with the above-mentioned preferred embodiments, it will be readily apparent to those skilled in the art that various other modifications and variations can be made without departing from the spirit and scope of the invention. It is obvious that all modifications fall within the scope of the appended claims.

Claims (9)

An extension having a first hardness and extending laterally along the longitudinal direction of the shoe 5 from an inner end of both ends of the transverse part 12 and both ends of the transverse part 12. A front member 10 in which the portion 14 is integrally formed; A rear member (50) having a second hardness lower than the first hardness and having a front surface conforming to the horizontal portion (12) and the extension portion (14); And Shoe heel to absorb the shock and relieve pressure concentration, characterized in that consisting of the bottom member 70 is bonded to the top surface 79 on the bottom surface of the front member 10 and the rear member 50 is fitted. The shoe sole as claimed in claim 1, wherein the Shore C hardness of the first hardness is 15 or more higher than the Shore C hardness of the second hardness. The shock absorber according to claim 1, wherein the first hardness of the front member 10 is Shore C hardness 45 to 75, and the second hardness of the rear member 50 is Shore C hardness 30 to 60. Heel to relieve pressure The shoe sole according to claim 1, wherein the front member (10) is ethylene vinyl acetate (EVA). According to claim 1, wherein the surface of the flooring material 70 in contact with the ground corresponding to the upper surface 79 is a predetermined plane 72 and the inclined surface 75 extending from the plane 72 and having a predetermined inclination angle A shoe heel that absorbs shock and relieves pressure concentration. According to claim 1, At least one through hole 110 is formed vertically in the front member 10, the inside of the through hole 110 is further provided with a spring 120 for improving the restoring force A shoe heel which absorbs the characteristic shock and relieves pressure concentration. The shoe heel of claim 1, wherein an air bag (140) is further provided inside the front member (10) to absorb shock and improve restoring force. The method of claim 1, wherein the front member 10 is an airbag front member 10a, and The rear member 50 is an airbag rear member (50a), characterized in that the shoe absorbs shock and relieve pressure concentration. In shoes, Shoes heel according to any one of claims 1 to 8 (100); Shoe sole (7) is fixed to the upper portion of the shoe heel (100); And Includes; waistband (1) is inserted into the sole of the shoe (7), The rear end of the waistband (1) is characterized in that located on the front member (10) to absorb shock and relieve pressure concentration diabetes.

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