KR20020050216A - piston function system for footwear - Google Patents

Abstract

PURPOSE: Provided is a piston functional system for shoes which excludes bulging situation, however external pressure is given, to improve feeling in wearing the shoes and delivers external pressure uniformly to reduce damage around joint, ankle or so on. CONSTITUTION: In the piston functional system for the shoes which sews and adheres certain type of external cover to wrap the shoes on bottom sheet with outsole, midsole and insole piled up sequentially, the piston functional system for the shoes comprises the parts of: a foot-shaped lower sheet and a sheet-shaped upper sheet which are bound to form internal space between upper sheet(12) and lower sheet(13) and mitigate shock of foot given between outsole and midsole; and a cushion sole(11) which has plural elastic bodies(16) built in the internal space.

Description

Piston function system for footwear

The present invention relates to shoes for walking and walking such as sneakers, work shoes, hiking shoes, and more particularly, when walking and walking by inserting a cushion window in which a plurality of elastic bodies are embedded between the midsole and the sole of the shoe. And a piston function system for a shoe that minimizes the impact on the sole and each joint from the foot.

Typically, the human foot is in contact with the ground at the time of standing up to support the weight to play a role or walking can be possible. The soles of most normal feet are in contact with the ground, except for the foot, to ensure a stable upright. When walking or running, the foot is stretched like a spring to alleviate the impact on the foot. By freeing the movement of the entire foot, including these to enable a smooth and smooth movement, such as walking and running.

Therefore, in selecting shoes, it is necessary to confirm whether the entire sole of the foot evenly touches the ground to distribute the load.

In general, during the running, basketball, soccer and tennis, a significant shock is continuously and repeatedly applied to the foot, which is transmitted directly to the foot every time the foot lands. While the foot supports all the weight to absorb the shock, the impact on the foot reaches several times the weight of the cartilage, such as weakened, there is a risk of injury or aging easily.

Thus, for the average person as well as for those who exercise intensely, the choice of comfortable shoes that can absorb shocks will not be overemphasized.

In order to absorb such a shock, shoes, particularly sneakers and the like are equipped with a shock absorbing cushion.

Most shoes, including sneakers, consist of a sole made of a stack of soles, midsoles, and insoles, and an outer covering that covers the feet when mounted on the sole, and a cushion for shock absorption, that is, a cushioning material, is generally embedded in the sole. to be.

The shock absorbing cushion may be formed by processing a conventional elastic material such as rubber, sponge, polyurethane foam, etc. in a plate shape, between an outsole and a midsole, or between a midsole and a midsole. It is mounted between the insole to support the sole and absorbs the impact on the sole.

However, such a conventional shock absorbing cushion has a limit in absorbing a large shock of several hundred kilograms to several tons, and the permanent shock occurs due to the large impact, and thus no buffer effect is obtained. In addition, a cushion in which a liquid or semi-solid, that is, a gel on a gel, is injected into an elastic material, has been developed. However, the cushioning effect is low because the liquid or the fluid is not compressed.

Therefore, the applicant has the same height toward the bottom downward, as in Korean Patent Application No. 40122 (name: air cushion having a shock absorbing support pin structure, a method of manufacturing the same and a shoe including the same) of 1999. 09. 17. Or a top plate having a plurality of support pins protruding at different heights from each other, and a bottom plate formed with corresponding pins formed with grooves for receiving the support pins on the top surface corresponding to the top plate, respectively. In addition, the support pins have been researched and developed an air cushion sealed to maintain airtightness wrapped in a tube body in a state in which the pin receptors are coupled to each other to be fixed.

The air cushion or the shoe to which the same is applied reduces the bulging phenomenon due to external pressure, thereby improving stability. However, since the tube body absorbing the shock must be kept airtight, there is a limit to the material that can be used as the tube body. If a small hole is drilled, air cushions and even the cushioning function of the shoe are not obtained at all. In addition, since a plurality of support pins and pin acceptors, etc. must be configured in the tube body, manufacturing is difficult and manufacturing costs are increased.

The present invention for solving the conventional drawbacks as described above can improve the fit of the shoes by preventing the bulging phenomenon even when the external pressure is applied, damage to the joints or ankles of the foot due to the impact by allowing the external pressure to be transmitted uniformly It is an object of the present invention to provide a shoe function system for a shoe that can reduce the pressure.

It is also an object of the present invention to provide a shoe piston function system that is easy to manufacture and does not have to maintain the airtightness of the cushion window by absorbing the impact from the outside due to the contraction and expansion of the elastic body.

1 is an exploded perspective view showing a cushion window of a first embodiment according to the present invention.

Figure 2 is an exploded perspective view showing a cushion window of a second embodiment according to the present invention.

3 is a cross-sectional view of the cushion window of the first and second embodiments shown in FIGS.

Figure 4 is an exploded perspective view showing a cushion window of a third embodiment according to the present invention.

5 is an exploded perspective view showing a cushion window according to a fourth embodiment of the present invention.

Fig. 6 is a sectional view of the cushion window of the third and fourth embodiments shown in Figs. 4 and 5;

7 to 10 is a partial cross-sectional view showing a shoe employing a cushion window according to the present invention.

11 and 12 are cross-sectional views for explaining the operating state of the cushion window according to the present invention.

※ Explanation of code about main part of drawing ※

1: outsole 2: midsole

3: insole 4: bottom plate

5: shell 11,21: cushion window

11a, 21a: front cushion window 11b, 21b: rear cushion window

12,22: Top plate 13,23: Bottom plate

14: male piston rod

15,25: female piston rod

16, 26: elastic body 17, 27: insert hole

18,19,28,29: wedge

Piston function system for shoes according to the present invention for achieving the object as described above, for the shoe is sewn and bonded to the outer shell of the predetermined shape that can wrap the foot on the sole plate and the sole and the insole is sequentially laminated In the piston function system, a foot-shaped lower plate and a plate-shaped upper plate are integrally joined to form an inner space between the lower plate and the upper plate so as to alleviate the impact applied to the foot between the sole and the midsole. It is characterized in that the cushion window is embedded in a plurality of elastic bodies in the inner space.

In the piston function system for shoes according to the present invention, the cushion window is inserted into the insert hole of the female piston rod integrally formed with the lower plate on the upper surface of the lower body is embedded with elastic bodies of different heights, the female piston on the bottom of the upper plate It is preferable that the male piston rod coupled to the insert hole of the rod is formed integrally with the top plate.

In the piston function system for shoes according to the present invention, the female piston rod is preferably formed high so as to have a separation distance of 2 to 4 mm between the bottom of the upper plate.

In the piston function system for shoes according to the present invention, the cushion window is formed on the upper surface of the lower plate is integrally formed with the female piston rod having an insert hole, the bottom of the upper plate is coupled to the insert hole of the female piston rod It is preferable that elastic bodies of different heights are attached.

In the piston function system for shoes according to the present invention, the arm piston rod preferably has a height of 20 to 60% of the height of the elastic body.

In the piston function system for shoes according to the present invention, it is preferable that the upper plate and the lower end of the cushion window are joined by heat seal fusion.

In the piston function system for shoes according to the present invention, it is preferable that wedges having a predetermined width are formed on the outer side of the upper plate and the lower end of the cushion window.

In the piston function system for shoes according to the present invention, it is preferable that the upper and lower plates of the cushion window are made of a thermo plastic polyurethane material.

In the piston function system for shoes according to the present invention, it is preferable that the insole is horizontally bonded to the upper surface of the cushion window, and the upper surface of the insole has a different height so as to be in close contact with the sole.

In the piston function system for shoes according to the present invention, it is preferable that between 10 and 25 elastic bodies are embedded between the upper plate and the lower end of the cushion window.

In the piston function system for shoes according to the present invention, the elastic body is a rubber gum, polyurethane foam (polyurethane foam), polyester resin (polyester resin), coiled steel wire (steel wire) It is preferably one selected from the group.

In the piston function system for shoes according to the present invention, it is preferable that the elastic body has an elastic force capable of shrinking and expanding to a height of 2 to 6 mm.

In the piston function system for shoes according to the present invention, the cushion window is separately formed into a front cushion window and a rear cushion window, it is preferable that the separate molded front cushion window and / or the rear cushion window is embedded between the sole and the midsole. Do.

Hereinafter, the present invention will be described in detail.

As shown in Figs. 9 to 12, a shoe, i.e., a bottom plate 4, comprising a sole plate 4 having a sole 1, a midsole 2, an insole 3, etc., and an outer shell 5 surrounding the foot. The cushion window 11 embedded between the sole 1 and the midsole 2 of the upper plate 12 and the elastic body 16 in which a plurality of male piston rods 14 are integrally formed on the bottom are shown in FIG. Heat seal after the lower plate 13, in which a plurality of female piston rods 15, which are housed and coupled to the male piston rod 14, is integrally formed on the upper surface, respectively, is formed in a separate state by a separate mold. By fusion, it is one to form a predetermined internal space between the upper plate 12 and the lower plate 13.

Here, the foot-shaped lower plate 13 having a height for forming the upper plate 12 and the inner space of the foot shape, and the female and female piston rods 14 and 15 integrally formed with the upper plate 12 and the lower plate 13. As the material of the thermo plastic polyurethane (thermo plastic polyurethane) may be used. In particular, the material (density) of the male and female piston rods 14 and 15 integrally formed with the upper plate 12 and the lower plate 13 and the upper plate 12 and the lower plate 13 is different from the conventional air (nitrogen) particles. It is not limited to being smaller and may be larger than air particles.

In addition, the outer edges of the upper plate 12 and the lower plate 13 of the cushion window 11 are formed with wedges 18 and 19 having a predetermined width for high frequency fusion, and the wedges 18 and 18 are horizontal. ) Has a width of about 4 mm to facilitate high frequency fusion when the upper plate 12 and the lower plate 13 are separated, and after the high frequency fusion is completed, so that the inner plate 1 and the midsole 2 can be easily embedded. It is preferable to cut only 2 mm.

FIG. 2 shows an example in which the cushion window 11 inserted between the sole 1 and the midsole 2 is separately formed into a front cushion window 11a and a rear cushion window 11b as shown in FIG. 7. As shown, the front cushion window 11a or the rear cushion window 11b is selectively inserted into the shoe, that is, the front end or the rear end between the sole 1 and the midsole 2 according to various conditions such as the price and use of the shoe. Alternatively, the front cushion window 11a or the rear cushion window 11b separately formed as shown in FIG. 8 may be inserted into the shoe, that is, both the front end and the rear end between the sole 1 and the midsole 2. Since the detailed configuration is the same as that of FIG.

In the inner space of the cushion windows 11, 11a, 11b according to the embodiments described with reference to FIGS. 1 and 2, when the upper plate 12 and the lower plate 13 are fused at one frequency, the upper plate ( The male piston rod 14 of 12 is composed of a plurality of pistons formed by engagement with the female piston rod 15 of the lower plate 13, that is, the insert hole 17 in which the elastic body 16 is embedded. It absorbs and alleviates the impact on the soles and joints.

10 to 25 pistons having such a structure are disposed in the inner spaces of the cushion windows 11, 11a and 11b, that is, the upper plate 12 and the lower plate 13 which are integrally and high frequency fused. It is natural to be placed in areas of heavy weight while the person is walking or walking. In addition, the total number of pistons may be determined in consideration of the diameter of the piston having a predetermined elasticity index, the weight of the person using the shoe, and the like.

In addition, the upper plate 12, that is, the male piston rod 14, may move up and down about 2 to 6 mm by the external pressure (weight) of the user who is inserted into the insert hole 17 of the female piston rod 15 and wears shoes. As the elastic body 16 to impart elastic force so that elastic rubber (rubber gum), polyurethane foam (polyurethane foam), polyester resin, steel wire wound in a coil shape, etc. may be selectively used. Can be.

In addition, the piston located at the front of the cushion window (11) (11a) (11b) and the piston located at the rear of the cushion window (11), that is, the insert hole (13) of the female piston rod (15) and the female piston rod (15). ), The upper surface of the cushion windows 11, 11a, 11b can be kept horizontal by having different heights of 3 to 7 mm corresponding to the height of the sole 1 that is in contact with the ground. Make sure

In addition, the upper surface of the midsole 2 attached horizontally to the upper surfaces of the cushion windows 11, 11a and 11b is in close contact with the sole, that is, evenly contacting the sole, so that the external pressure caused by the sole is increased by the cushion sole 11 (11a) ( They are of different heights so that they can be applied evenly on the top of 11b).

Therefore, in the state where shoes are not worn or the feet (shoes) are removed from the ground as shown in FIG. 11, the upper plate 12, that is, the male piston rod 14, is raised by the elastic force of the elastic body 16, A gap of about 2 to 6 mm is formed between the bottom surface and the female piston rod 15. However, when an external pressure is applied to the upper and lower surfaces of the cushion windows 11, 11a, and 11b from the foot and the ground while the foot touches the ground, the bottom surface of the uppermost plate 12 is the female piston rod 15 by the external pressure. The elastic body 16 is contracted until it reaches the upper surface of the cushioning to alleviate and absorb the impact applied to the sole.

Of course, the moment of releasing the foot again from the ground again, by the elastic force of the elastic body 16, the male piston rod 14, that is, the top plate 12 is repeatedly performed to return to the original state.

In particular, even when small holes are formed in the cushion windows 11, 11a and 11b, the cushion windows 11, 11a and 11b are shock-absorbing functions due to the elasticity of the elastic body 16 without being affected. By continuously performing this can minimize the impact on the ankle or various joints of the person during walking or walking.

Of course, the cushion windows 11, 11a and 11b are made of a high-density material as in the prior art, and the cushion windows 11, 11a and 11b are manufactured in a sealed form, thereby alleviating impact caused by the elastic body 16. In addition, it is possible to anticipate the shock by the air pressure accommodated in the inner space of the cushion windows 11, 11a, 11b.

4 to 6 and 9, 10 and 12 show another embodiment of the present invention, Figures 4 to 6 is an exploded perspective view showing the integrated cushion window 21 and the removable cushion windows 21a and 21b. 9 and 10 show a state in which the cushion windows 21, 21a and 21b shown in Figs. 4 to 6 are employed in shoes, and Fig. 12 is used by the cushion windows 21, 21a and 21b. Is a partial cutaway cross-sectional view showing the working state of the shoe.

First, the same components as those of the embodiments shown in FIGS. 1 to 3, 7, 8, and 11 described above are denoted by the same reference numerals, and detailed description thereof will be omitted.

As shown in Figs. 4 to 6, the cushioning windows 21, 21a, 21b have an arm piston rod 25 having an insert hole 27 integrally with the lower plate 23 on the upper surface of the lower plate 23. It is formed by attaching an elastic body 26 having different heights to be coupled to the insert hole 27 of the female piston rod 25 on the bottom surface of the upper plate 22.

At this time, the operation of attaching the elastic body 26 having different heights on the bottom surface of the upper plate 22 is to place the elastic body 26 corresponding to the insert hole 27 of the lower plate 23 on a separate sheet and then the upper plate upside down By attaching to the underside of (22), it is possible to attach several elastic bodies in a short time.

Here, the height of the female piston rod 25 formed integrally with the lower plate 23 is sufficient to be 20 to 60% of the height of the elastic body 26.

Of course, the cushion windows 21, 21a, 21b can be molded integrally or separately in FIGS.

As shown in Fig. 9, an integrally molded cushion window 21 is inserted between the sole 1 and the midsole 2, or a separate molded cushion window 21a, 21b as shown in Fig. 10 is provided at the front and rear ends. Each of these can be inserted or can be selectively inserted into the front or rear end, depending on the purpose of the shoe.

Fig. 12 shows the operating states of the cushion windows 21, 21a and 21b, in which the shocks transmitted from the ground are not directly transmitted to the soles or joints, but are sealed cushion windows 21 (21a) 21b or the top plate. Absorption by the elastic body 26 inherent between the 22 and the lower plate 23 minimizes the impact on the ankle or various joints of the person during walking or walking.

Therefore, according to the piston function system for shoes according to the present invention can improve the fit of the shoes by preventing the bulging phenomenon even when the external pressure is applied, damage to the joints or ankles of the foot due to the impact by the external pressure is transmitted uniformly. There is an effect that can be reduced.

In addition, the present invention is to facilitate the production of the cushion window by absorbing the impact applied from the outside by the contraction and expansion of a plurality of elastic bodies, there is an effect that does not need to maintain the airtight of the cushion window.

Although the present invention has been described in detail only with respect to the specific embodiments described, it will be apparent to those skilled in the art that various modifications and variations are possible within the spirit of the present invention, and such modifications and modifications belong to the appended claims. .

Claims (13)

In the piston function system for shoes in which the outer shell of a predetermined shape that can wrap the foot on the sole plate, the sole and the midsole and the insole are laminated sequentially, In order to alleviate the impact applied to the foot between the sole and the midsole, the foot-shaped lower plate and the plate-shaped upper plate are integrally bonded to form an inner space between the lower plate and the upper plate, and a plurality of elastic bodies in the inner space of the lower plate and the upper plate. Shoe piston function system, characterized in that the inherent cushion window. The method of claim 1, The cushion window has an elastic body of different heights embedded in the insert hole of the female piston rod integrally formed with the lower plate on the upper surface of the lower plate, and a male piston rod coupled to the insert hole of the female piston rod on the bottom of the upper plate. The shoe piston function system, characterized in that is formed integrally with the. The method of claim 2, The arm piston rod is a piston function system for the shoe, characterized in that formed high so as to have a separation distance of 2 to 4 mm between the bottom of the upper plate. The method of claim 1, The cushion window is formed of an arm piston rod having an insert hole integrally with the lower plate on the upper surface of the lower plate, and an elastic body of different heights coupled to the insert hole of the female piston rod is attached to the lower surface of the upper plate. The shoe piston function system. The method of claim 4, wherein The arm piston rod has a height of 20 to 60% of the height of the elastic body of the shoe piston function system. The method of claim 1, The upper plate and the lower end of the cushion window is the piston function system for shoes, characterized in that joined by high frequency (heat seal) fusion. The method of claim 1, Piston function system for the shoe, characterized in that the wedge of a predetermined width is formed on the outer side of the upper plate and the bottom of the cushion window. The method of claim 1, The upper and lower plates of the cushion window is a piston functional system for shoes, characterized in that made of a thermo plastic polyurethane (thermo plastic polyurethane) material. The method of claim 1, The insole is bonded horizontally to the upper surface of the cushion window, the upper surface of the insole has a different height so as to be in close contact with the sole of the shoe piston function system. The method of claim 1, The piston function system for shoes, characterized in that between 10 and 25 elastic bodies are embedded between the upper plate and the lower end of the cushion window. The method of claim 1, The elastic body for the shoe, characterized in that one selected from the group consisting of rubber rubber (rubber gum), polyurethane foam (polyurethane foam), polyester resin, coiled steel wire (steel wire) Piston function system. The method of claim 1, And said elastic body has an elastic force capable of contracting and expanding to a height of 2 to 6 mm. The method of claim 1, And the cushion window is separately molded into a front cushion window and a rear cushion window, wherein the separated molded front cushion window and / or the rear cushion window are embedded between the sole and the midsole.