KR100872865B1 - Elastic shoes for cushioning against impact - Google Patents

Abstract

A shock absorbing elastic footwear is provided to absorb an impact load applied to the heel during walking, and improve the driving force during leaping using elasticity of leaf springs and elastic holes. In a footwear with an out sole(10), a shock absorbing elastic footwear comprises a supporting part(100) formed in the form of a leaf spring to prevent distortion of the footwear due to repeated landing and leaping, a shock absorbing part(200) for absorbing an external force applied to one's heel during landing, and an elasticity reinforcement part(300) for reinforcing walk driving force using elastic force during leaping, wherein the leaf spring comprises a plate-shaped rear leaf spring(120) in which width of the spring is shorter than length of the spring, and a leaping leaf spring(110) bent from a shank in a middle portion of the footwear to the front of the footwear to form elastic repulsive power relative to the load.

Description

Elastic shoes for cushioning against impact}

The present invention relates to an elastic shoe, and more particularly, to a shock-absorbing elastic shoe that can mitigate the impact on the heel when landing while preventing the shape of the shoe is twisted, and can assist the driving force when jumping.

In general, a shoe protects the foot by covering the sole and the entire foot. When walking, the shoe is first landed on the heel of the shoe, and a load is applied, and then the load is moved to the center of the sole, and then a jump is made near the foot. You will go through the process.

When repeated landing and leap is repeatedly applied to the high heel near the heel, the fatigue of the foot is accumulated, the shock is transmitted to the ankle, there was a problem that can come to the muscles or bones.

In order to solve this problem, Korean Patent Office Publication No. 0566506 discloses an "outsole with improved heel and multi-purpose shoes using the same".

1 is a side view of a shoe with a cushion applied to the outsole and the shock absorber is applied to improve the heel. As disclosed in FIG. 1, the invention according to the prior art exhibits a shock absorbing structure that is suitable for the improved heel portion 8 of the sole 7 and at the same time provides the best performance. The sole 7 includes a midsole member 10, an outsole member 20, and a cushion member 30. The midsole member 10 is conventional, and is thickly formed of a flexible polyurethane-based flexible material. The thin outsole member 20 bonded to the bottom of the midsole member 10 is also conventional, and is molded from synthetic rubber having a high frictional force against the ground and excellent wear resistance. The cushion member 30 bonded between the midsole member 10 and the heel portion of the outsole member 20 elastically responds to the wearer's weight and the impact upon landing to absorb the impact.

For this purpose, a polyester elastomer (for example, KOLOL of KOLON Emulsifier) having excellent mechanical strength and elastic recovery power is used.

The cushion member 30 has an upper surface portion 31 and a lower surface portion 32 and has a half-moon-shaped space portion 33 that is largely opened to the left and right sides for expansion and contraction therebetween. The upper surface portion 31 is generally flat or gently curved to correspond to the shape of the heel. The lower surface portion 32 is curved to correspond to the shape of the ground plane 9 of the improved rear shaft portion described above.

Then, the outsole member 20 bonded to the bottom of the midsole member 10 is removed to form a grounding surface of the rear shaft portion of the cushion member 30 in the forward and rearward directions, and is embedded in the rear shaft portion or stretched thereunder. It is possible to consist of a cushion member 30 having an elasticity.

In particular, the upper part of the sole has the advantage of maintaining the stability of the landing operation, but the load is concentrated only on a certain part by repeated landing and leap, the overall shape of the shoe, the shank portion or the heel portion can be twisted, leap Since there is no proper propulsion force required, it is not easy to jump, and when the maximum load is applied to the heel, it was difficult to properly absorb shock.

Accordingly, the present invention has been made to solve the above problems, the present invention, to prevent the overall shape of the shoe twisted through repeated landing and leap, and to absorb the impact of the load applied to the heel during walking In addition, the present invention relates to an impact-relieving elastic shoe which has improved propulsion force when jumping by applying elastic restoring force vertically upward by using elastic force of leaf spring and elastic hole.

The present invention for achieving the object as described above, in the shoe provided with an outsole, the support portion is formed over the rear and front of the upper surface of the outsole so as to prevent warping of the shoe by repeated landing and leap; An impact absorbing portion formed at the rear portion of the outsole to absorb an external force applied to the heel when landing; It characterized in that it comprises a; elastic reinforcing portion formed in the front portion of the outsole to reinforce walking propulsion force by using the elastic force when leaping.

Here, it is preferable that the said shape support part is the curved leaf | plate spring.

Here, the leaf spring is attached to the upper side of the outsole, the rear leaf spring made of a plate shape formed narrower than the length; It is preferably formed to include; the leaf plate spring extending to the rear plate spring, bent from the shank of the center portion to the front to form an elastic repulsive force against the load.

Here, the leaf spring is preferably made of a steel material.

Here, the shock absorbing portion is preferably formed in a pad shape having a constant height.

Here, the shock absorbing portion is preferably made of polyurethane or EVA material.

Here, the shock absorbing portion is preferably a Shore hardness of 30A ~ 40A.

Here, the elastic reinforcing portion, the elastic member is formed through the left and right direction of the outsole, the plurality of elastic holes are arranged in the front, rear direction of the outsole; It is preferable to include a; a plate-shaped leap leaf spring formed over the front in the middle of the upper surface of the outsole so that the elastic restoring force is formed.

In addition, the present invention, the midsole for receiving the shock absorbing portion and the elastic member; is preferably further included in the upper portion of the outsole.

Here, the midsole, the opening is formed in the front through the elastic member is fitted is coupled, it is preferable that the accommodating portion is formed in the rear lower side is coupled to the shock absorbing portion.

As described above, the present invention has the effect of preventing the warping of the shoe formed during repeated landing and leap, and to mitigate the impact of the maximum load acting near the heel.

In addition, the present invention has the effect of supporting the propulsion force required when moving forward by the elastic restoring force when jumping.

Figure 2 is an exploded perspective view of the shock-absorbing elastic shoes according to an embodiment of the present invention, Figure 3 is a longitudinal sectional view of the shock-absorbing elastic shoes in accordance with a preferred embodiment of the present invention.

Here, the outsole 10 in contact with the ground and the upper 20 covering the upper part of the foot and the insole 30 in contact with the sole are well known techniques, and thus detailed description thereof will be omitted.

Here, the bottom of the insole 30 is formed between the front flooring material 40 and the rear flooring material 50 of the non-woven material formed between the insole 30 and the midsole 400 to be described later is configured to act as a medium. .

As shown in Figures 2 to 3, the present invention is largely composed of the shape support portion 100, the shock absorbing portion 200 and the elastic reinforcement portion 300, the midsole 400 may be selectively configured. .

First, the shape support part 100 will be described. Shape support portion 100 is composed of a leaf spring, the leaf spring is formed long in a narrow plate shape compared to the length, consists of a rear leaf spring 120 and the leaf leaf spring (110).

The rear leaf spring 120 is formed in a curved shape bent according to the outline shape of the heel, and is formed in a curved shape inclined upward toward the shank 12 of the outsole 10.

In addition, the hopping leaf spring 110 is formed extending from the rear plate spring 120 to the front vicinity to be bent upward from the shank 12 of the outsole 10, the vicinity of the shank 12 is twisted Since it is higher than the other part, it is preferable to be staggered from one side to the other side, and bent downward toward the front in the vicinity of the shank 12 and is formed to the front part flat again.

Here, the role of the shape support part 100 is particularly important in the vicinity of the shank 12 is severely distorted by the undistributed load, it is preferable that the shape support part 100 is formed in a shape that can prevent this distortion.

Here, the shape support part 100 may be formed in various shapes such as a straight plate shape, a U 'shape, a' 8 'shape, or the like.

Next, the shock absorbing part 200 is possible in a variety of shapes that can include all the parts of the heel of the shoe, it is made of a pad shape of a certain thickness.

The rear side of the shock absorber 200 is formed similar to the circular shape of the heel, the front side is formed in a straight line, each side may be selectively formed in an oblique shape.

The shock absorbing unit 200 is preferably a Shore (Shore) hardness of about 30A ~ 40A, made of an integral low-elastic material such as polyurethane or EVA, to reduce the impact applied to the heel when landing, cushioning It is formed to a height that can be provided.

Next, the elastic reinforcement portion 300 is composed of a spring leaf spring 110 and the elastic member 310.

The hopping leaf spring 110 is formed in the same width as the rear leaf spring 120 extends through the center portion to the front portion, the vicinity of the shank 12 of the outsole 10 is formed higher than the rear shape accordingly Along the shank 12 is formed high in height, downward toward the front portion of the foot is formed.

It is formed along the height according to the shape of the sole, when the side-by-side transverse loads are transferred from the shank 12 portion to the front portion when the leap, the load acting vertically downward to the leap leaf spring (110) Applied vertically downward, an elastic restoring force is formed toward the vertical top. Therefore, while the elastic repulsive force of the leap leaf spring 110 is applied upward, it is possible to receive not only the leap but also the driving force necessary for moving forward.

The leap leaf spring 110 is formed to provide the elastic repulsive force necessary for the leap at the same time as the shape support portion 100 to provide the force necessary for the leap and the driving force in the vertical upward direction.

The elastic member 310 is formed in a length longer than the length of the front, rear than the length of the shock absorbing part 200, a plurality of elastic holes 312 through the left, right long hole is formed in front, rear Thus, the elastic holes 312 through the left and right are contracted due to the pressure toward the bottom of the outside and then expand upward to form air pressure so that the elastic repulsive force acts vertically upward. This elastic repulsion force allows the pedestrian to leap with less force, and thus provide a driving force for moving forward.

In addition, the elastic member 310 may be made of a low elastic material to form an elastic repulsive force by the elastic hole 312 while mitigating the impact when jumping.

That is, the leap leaf spring 110 and the elastic hole 312 of the elastic member 310 can provide the user with the necessary force to leap to each other to assist the leap during the walking process of landing-supporting-leap. Is formed.

Next, the present invention may further configure the midsole 400 in the above configuration.

The midsole 400 is positioned above the leaf spring formed of the leap leaf spring 110 and the rear leaf spring 120.

The rear of the midsole 400 is formed so that the receiving portion 420 is formed in a concave shape in the lower portion wide to receive the shock absorbing portion 200, the front is formed with an open portion 410 of a wide through hole It is preferable that the elastic member 310 is fitted to be coupled so as to be integrally coupled.

A leaf spring is attached to the lower side of the midsole 400 to which the shock absorbing unit 200 and the elastic member 310 are coupled to mitigate the impact by the shock absorbing unit 200 when landing, and a spring leaf spring when jumping. The elastic repulsion force of the elastic hole 312 through the inside of the 110 and the elastic member 310 is provided so that the user is provided with a driving force to walk with a small force.

Hereinafter will be described in detail the process in which the shock-absorbing elastic shoes provided with the form support 100, the shock absorbing unit 200 and the elastic reinforcement 300 according to the present invention by an external force.

Figure 4 is a cross-sectional view showing (a) landing (b) support (c) leap of the impact-resistant elastic shoes according to an embodiment of the present invention.

As shown in (a) of FIG. 4, the cloud movement during walking causes the force to move from the heel to the toe. In other words, the first pedestrian is landing with the heel, the largest load is applied to the heel, and then the load moves forward, the heel moves upward to obtain the driving force to move forward, the front part of the foot on the ground As they reach, they leap forward and move forward with propulsion.

When landed in this way, the shock absorbing unit 200 of the present invention is made of a heel shape made of polyurethane or a low elastic material EVA to sufficiently absorb the maximum external force applied to the heel to protect the joints of the ankle and knee and muscle It is formed so as not to overdo it.

The shock absorbing part 200 has a constant thickness but receives an external force greater than the elastic reinforcing part 300, so that the shock absorbing part 200 has a thickness greater than that of the elastic reinforcing part 300, in order to absorb an external impact, and the strength Is preferably formed in about 30A ~ 40A.

The shock absorbing unit 200 formed as described above absorbs external force acting vertically downward when landing through the heel, and may provide a cushioning feeling to the user because it is a low elastic material.

As shown in (b) of Figure 4, Figure 4 (b) is a step in which the load is moved forward after the leap, the form support portion 100 is moved from the rear to the front in the intermediate stage of landing and leap It is formed to prevent the shape of the shoe from twisting due to uneven transmission of the load.

In addition, the load is transmitted to a part of the rear side of the elastic reinforcement 300, wherein the elastic hole 312 is formed through the left and right direction of the shoe is contracted with respect to the load transmitted simultaneously from the rear.

Finally, in Figure 4 (c) the pressure is applied to the front portion of the sole for the leap, the elastic reinforcement portion 300 is the spring leaf spring 110 and the elastic member 310 acts vertically downward When it is contracted by external force and then jumps, the elastic force acts vertically upward to reduce the force required when jumping.

In this case, the elastic hole 312 of the elastic member 310 is long through the left and right direction of the shoe, a plurality of the front and rear of the shoe is formed so as to be arranged in a row in a row to move the force from the rear to the front It is formed to be dispersed at the same time.

That is, the elastic hole 312 has a long through-hole in the left, right direction is formed so as to correspond to the force is simultaneously moved in the left, right direction of the shoe when the load received from the rear of the shoe moves forward. This elastic repulsive force may also affect the driving force of the gait and may be more easily moved forward.

In conclusion, the elastic reinforcement part 300 provides a force required for the jumping by the repulsive force that contracts and expands the elastic hole 312 while the force acting vertically downward through landing, supporting, and jumping.

In addition, the hopping leaf spring 110 is formed to be bent along the shank 12 shape is formed in a curved shape slightly upwardly than the rear leaf spring 120, the load transmitted from the rear of the hopping leaf spring (110) When the force is applied vertically downward, the elastic repulsive force can be formed, and because it can provide the necessary force to jump vertically upward, it is possible to provide the driving force to move forward even with a small force when walking.

The foregoing has outlined rather broadly the features and technical advantages of the present invention in order to better understand the claims of the invention which will be described later. It should be appreciated by those skilled in the art that the conception and specific embodiments of the invention disclosed may be readily used as a basis for designing or modifying other structures for carrying out similar purposes to the invention.

In addition, such modifications or altered equivalent structures by those skilled in the art as a basis for modifying or designing the structures and embodiments of the invention disclosed in the present invention to other structures for carrying out the same purposes of the present invention are patents Various changes, substitutions and changes may be made without departing from the spirit or scope of the invention as set forth in the claims.

Figure 1-Side view of a shoe with a cushioned sole for shock absorption and the sole with improved heel

Figure 2-exploded perspective view of the shock absorbing elastic shoes according to an embodiment of the present invention.

Figure 3-Longitudinal cross-sectional view of a shock absorbing elastic shoe in accordance with a preferred embodiment of the present invention.

Figure 4-A cross-sectional view showing (a) landing (b) support (c) leap of the impact-resistant elastic shoes according to an embodiment of the present invention.

** Description of the code for the main parts of the invention **

10: outsole 12: shank

20: jacket 30: insole

40: front floor material 50: rear floor material

100: shape support 110: jump leaf spring

120: rear leaf spring 200: elastic reinforcement

300: shock absorbing portion 310: elastic member

312: elastic ball 400: midsole

410: opening portion 420: receiving portion

Claims (10)

In the shoe provided with the outsole 10, A leaf spring shape support part 100 formed over the rear and front of the upper surface of the outsole 10 so as to prevent warping of the shoe due to repeated landing and jumping; A shock absorbing part 200 formed at a rear portion of the outsole 10 so as to absorb an external force applied to the heel when landing; It includes a resilient reinforcement portion 300 is formed in the front portion of the outsole 10 to reinforce walking propulsion force by using the elastic force when leaping; The leaf spring is, A rear leaf spring (120) attached to an upper side of the outsole (10) and formed in a plate shape having a narrower width than a length; Shock rebound elastic shoes, characterized in that it comprises; and the rear leaf spring 120 is formed extending, the spring leaf spring 110 is bent from the shank 12 of the middle portion to the front to form an elastic repulsion force against the load; . According to claim 1, wherein the shape support portion 100, Impact relieving elastic shoes, characterized in that the curved curve. delete According to claim 1 or 2, The leaf spring, Impact-resistant elastic shoes, characterized in that made of steel. The shock absorber 200 according to claim 1 or 2, Shock absorbing elastic shoes, characterized in that formed in a pad shape having a certain height. The shock absorber 200 according to claim 1 or 2, Impact-resistant elastic shoes, characterized in that made of polyurethane or EVA material. The shock absorber 200 according to claim 1 or 2, Shock relaxation elastic shoes, characterized in that the Shore hardness is 30A ~ 40A. The method of claim 1 or 2, wherein the elastic reinforcement portion 300, An elastic member 310 formed to penetrate in the left and right directions of the outsole 10 and having elastic holes 312 arranged in a plurality of front and rear directions of the outsole 10; Shock absorbing elastic shoes, characterized in that consisting of ;; plate-shaped spring leaf spring (110) formed over the front in the middle of the upper surface of the outsole (10) to form an elastic restoring force. The method of claim 8, The midsole 400 for accommodating the shock absorbing part 200 and the elastic member 310; Shock-absorbing elastic shoes, characterized in that is further provided on the top of the outsole (10). The method of claim 9, wherein the midsole 400, The opening 410 is formed in the front through the elastic member 310 is fitted and coupled, the shock absorbing portion characterized in that the receiving portion 420, the rear lower side is curved to receive the shock absorbing portion 200. Elastic shoes.

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