JPH03500138A - footwear - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] 1-sex The present invention relates to footwear having two doubled soles. These two layers are It forms a space for storing certain media.

Healthy people spend most of their time at work and during their free time changing their location. In this case, all of the body weight is transferred to the feet. So As a result of However, it must fit well with the characteristics of the foot.

Properly designed footwear not only fits well around the foot and body, but also protects the ankles and knees. regarding the impact of , there are advantages. In the technical literature addressing hygiene issues, waste treatment and Data on cleaning shows that 'motor system disorders caused by wearing inappropriate footwear' For example, the causes of vascular disorders caused by wearing inappropriate footwear are discussed. There is.

Running, especially when engaging in sports activities, can cause significant damage to a person's feet and legs. It will be subjected to heavy dynamic loads.

The degree of load applied to the foot or leg is determined primarily by the process of load transfer. Ru. If a load is applied impulsively to the foot in a short period of time, this It is harmful to the body and joints. This way of applying the load is similar to that when moving on hard ground. If you run or run at excessively high speeds while wearing footwear with hard soles. Occurs when

When such a dynamic load is applied, acute vascular damage occurs medically.

To some extent, the situation is better if the load is gradually applied to the feet and joints. is achieved. i.e. on softer surfaces such as carpets. Such a situation is achieved when running on dry grass.

However, when the load is applied to the feet and joints, a part of the sole becomes a part of the load. The fact that the surface forms a certain degree has a large influence. From this point of view If so, you can walk barefoot on the soft sand with varying amounts of force, run, or Walking will help you find ideal conditions.

To summarize the above, the load must be applied to the sole gradually, i.e. impulsively. For example, no large loads are applied to the feet, joints, pillars, or muscles. It is. And the load should be carried by the largest possible surface of the sole. Also, the part should always undergo loading form for an appropriate amount of time.

Unfortunately, we cannot choose the type of soil we walk or run on. stomach. Therefore, the structure of the footwear we wear meets the above conditions. The most suitable design h< should be made. traditionally known to the general public It can be said that the footwear that meets these requirements does not satisfy these conditions.

The soles of conventionally known footwear are made of elastic materials such as rubber or some synthetic materials. It is being Soles made of such elastic materials have a certain degree of impact on the feet. Impact load can be reduced. However, the disadvantage of traditional designs is that the sole The point is that it does not reach the point of rubbing the surface shape in an appropriate shape. It is in. In the case of footwear that is produced continuously and is suitable for mass production, it is necessary to accommodate individual differences. It is impossible. To be averaged based on continuously measured dimensions In the case of footwear used, the dimensions obtained from averaging during production in the plant. It is not possible to take further inter-individual differences into account within the scope.

2. Description of the Related Art Conventionally, footwear in which the sole portion has a double layered structure, upper and lower layers, have been provided. child This is shown in German patent DE-AS 2 924 716. individual parts are Constructed of hard and/or flexible materials, one of which It is placed as an inner sole on top of the other. However, the soles of human feet are extremely diverse. Therefore, this solution cannot guarantee the ideal position of the sole of the foot. As a result, this The solution is not universal.

A closed space is formed between a pair of elastic members, and a fluid is stored in the closed space. Footwear soles are also known.

An example of this solution can be found in patent US-PS 4,342,157. This special In this case, a hollow space is formed within the sole.

In this solution, the space has a partially liquid-filled cushion. are doing. In reality, this cushion is flexible, elastic, and non-flexible. A hose with porous walls. This hose should be adapted to the sides of the above space. It has become. Approximately 70-95% of this cushion is filled with liquid under pressure. has been done. Optionally, a pressure gas is filled above this liquid layer. This solution The disadvantage of this method is that it makes the gait unstable.

Patent US-PS 4,445,284 describes a shoe that includes elongated cells in the sole. Are listed. This cell contains liquid, air or other suitable fluid. has been done. The flow is controlled by a check valve. This solution is , in addition to having a complicated configuration, walking is unstable and wobbly, similar to the conventional example. tJs-PS 4,472,890, which says that it is formed in the sole of a shoe. A solution is described in which a partially liquid-filled cushion is received in the empty space. It is listed. This cushion is made of non-porous elastic material and It has thin walls. Pressure fluid is contained within the hose. This solution is dramatically superior in terms of force transmission effect compared to the conventional example, but There are problems in manufacturing and use, and these problems have not yet been resolved. .

British patent GB-PS 1 525 476 states that A two-part inner sole is described. And of those two parts Some type of liquid, or water, is stored in between. This inner sole is separated from each other. It has four parts.

Each part is not connected to other parts. Adjust the pressure applied to the water to the desired value can do. The problem that arises here is the same as the problem in the conventional example described above.

German patent DE-O82809011 describes an air pump with a check valve. A sports shoe is shown with a this.

The solution with air cells provides an overall value perspective with respect to the entire surface of the sole. A point-by-point solution has not been made. Therefore, the problem cannot be explained further. Not as good as that.

In EPA-Patent 0 122 985, channels containing pressurized air are transversely A pair of shoes is shown. The problem with this solution is that regarding the entire sole , safe walking is not guaranteed.

Patent US-PS4,392.104 and US-PS4°462.1 No. 71 describes footwear with a double-walled sole.

In both solutions, the channel formed between the bottom and top of the sole There is air inside. The pressure of this air is regulated by a valve. this Their solution requires very complex manufacturing conditions. Also, it is safe when moving. Does not give a sense of quality and security. Therefore, these solutions are common and conventionally known. In footwear, the solutions listed above are approaching somewhat of an ideal support method. There is. However, these solutions have some problems that are not generally applicable. It has some problems.

The common problem with these is that the upper layer of the space has the same thickness on the sole surface. However, the elasticity does not meet the required conditions, and the shape of the sole surface can be adjusted quickly to the desired level. And it is impossible to change completely. One problem now is The surfaces of the two layers facing each other easily slide due to the sliding force, resulting in This means that people who wear these types of footwear feel insecure. fixed to each other The connection between the two layers will break after a short period of time. Slips frequently and with great force When this happens, the two layers facing each other will be subjected to a considerable load. , as a result, the parts glued together become separated. So in this case If air is used as a fluid, air with too much pressure will leak from the space. This means that Another problem is that as the load increases, air often The situation will be compressed to the extent described above and the objective will no longer be achieved. That is.

A further common problem known in the art is the loading conditions and If the footwear tightens too tightly on the foot or This means that it becomes too loose naturally. If the tightening force is too loose, Particularly when playing sports, the foot may not be properly supported against the ground by footwear. It will be bad. On the other hand, if the footwear is too tight, even under load, Even when you're not there, the arteries in your legs are constricted.

The ideal condition is that blood circulation within the blood vessels is unimpeded in the unloaded state. It is impossible for blood to flow freely within the blood vessels while work is being carried out. This means that the legs circulate even when walking or running. The object of the present invention is to improve footwear, in which the The sole of the foot is in an ideal position against the sole of the footwear when a load is generated during use. footwear, and the person wearing footwear can always hold his or her feet securely. In addition, the blood vessels in the area surrounded by the shoe are compressed. This should occur only when a load is applied.

Therefore, according to the present invention, the sole of the footwear is constituted by a double layer of an upper layer and a lower layer, A closed space is formed between these two layers, and a liquid substance is contained in this closed space. Relating to footwear made of filled, elastic material. And the above double structure The space formed in the sole is an undivided closed space that spans the entire length of the sole. It is distinctive in that it is made of At least one of the layers of the double structure extends from the foot to the sole. areas that are subject to forces resulting from static and/or dynamic loads, especially heels and Has a thinner and/or harder layer around the transverse strangles and toe muscles. Further, at least one of the above-mentioned layers of the double structure is partially or Overall, it has distorted ribs and cutouts, which makes the material non-flexible. to promote the flow of liquid substances according to a predetermined path, or To prevent.

According to a preferred embodiment of the invention, the guide ribs and/or cutouts are provided at the end curved and/or labyrinthine curved or distorted shape with a load point The mutual distance between them is as small as possible.

Furthermore, according to a preferred embodiment of the invention, said sole is configured as a double layer. The liquid middle corresponds to at least the leg with respect to the upper part of the footwear formed with double layers. Connected in certain parts.

The closed space formed in the upper part of the footwear is completely or partially separated. Configured as a pipe system in a channel system and as a double layer It is preferable to connect the liquid intermediate part of the sole of the footwear.

At least one of the dual layer soles of the footwear may include an elastic synthetic material (optionally (with air bubbles) or other suitable material, partially or completely. It is preferable that all the terminals are connected to each other.

According to another embodiment of the invention, the ribs formed on either side of the sole are cut out. It is characterized by being able to fit together.

A certain pattern is formed on the tread surface of the sole of the above footwear, originally at the load point. or wear-resistant material to provide a reaction force in the direction of the force. It is preferable to provide retaining ribs or adhesive ribs made of material.

The above liquid substance is a fluid with a specific gravity of 0.5 to 2 g/c♂ and has an effect on temperature. silicone oil or its mixtures or molecular fluids with no viscosity Preferably, other similar materials are used.

In the following, the invention will be explained in detail by describing preferred embodiments according to the accompanying drawings. I will explain in detail.

FIG. 1 is a schematic cross-sectional view.

FIG. 2 is a sectional view showing another embodiment.

FIG. 3 is a schematic cross-sectional view of a more preferred embodiment.

FIG. 4 is also a cross-sectional view.

Figure 5.6.7 shows details of an example suitable for each embodiment of the invention.

As shown in FIG. 1, a sole 1 of footwear includes an upper layer 2 and a lower layer 3. this The upper and lower layers are made of resilient synthetic material, rubber, or have similar properties. made of a suitable flexible material, such as any other material that Upper layer 2 and lower layer 3 are mutually exclusive. are fixed to, i.e. connected by a known method, and there is no connection between them. A closed space 4 is formed. Use a clamp member to connect the upper layer 2 and lower layer 3 This can be fully achieved by This clamp member is used for the sole of footwear. It consists of a band 5 or other similar member that surrounds the entire circumference of l. . The sole l of the footwear can be fixed to the upper in a known manner.

The thickness of the upper layer 2 facing the space 4 is determined along the longitudinal direction and in some cases in the lateral direction. You can also make changes accordingly. The area where the bottom of the toe touches and the soil First, in the lower part, the upper layer 2 is much thinner than other parts; A notch 7 is formed in the portion, and a rib 8 is formed adjacent to the notch. It will be done.

Needless to say, the notch 7 does not extend to the edge of the upper layer 2, and therefore The respective edges of the upper layer 2 and lower layer 3 to be connected to each other are each shaped into a smooth surface. At the same time, they are connected to each other.

Space 4 is filled with a liquid that has a viscosity higher than that of water or that does not change with temperature. It contains a substance whose specific gravity is 0.5 to 2 g/cm3. silicon o or mixtures thereof, or other substances with intermolecular fluidity for the above purposes. can be used to achieve. When the footwear is not under any load. Thus, the surface of the upper layer 2 covered by the inner sole lining 9 is flat. on the other hand, This planar surface is a surface formed by a pattern forming the tread surface of the lower layer 3. is parallel to When the user's weight is applied to the footwear, the upper layer 2 moves towards the lower layer 3. I will do it. The area under the toes, between the inside of the toes and the transverse strangulation muscle, or The lower part of the heel will touch the lower layer 3, and a part of the upper layer will touch upwards. Swells up. As a result, when the upper layer 2 and the lower layer 3 move toward each other, The liquid in the space 4, which was distributed evenly, gathers under the thin part of the upper layer 2. Push the thin layer upwards. Therefore, the sole is It will also be held as if walking on a carpet or sand. this place In this case, if the shape of the footwear changes while walking or running, At the same time, the shape of the upper layer 2 also changes and perfectly adapts to the sole surface of the foot. It becomes like this. When the load increases, the sole 1 of the footwear maintains its original position. It becomes like this.

The notch 7 may be linear, curved, endlessly curved, or labyrinth. It can have a curved shape.

FIG. 2 shows footwear according to another embodiment, but in FIG. The difference from the example is that notches 7 and ribs 8 are formed on the inner surface of the lower layer 3. Ru. This rib 8 is formed along the length of the footwear and has the following two functions. ing. One function is that when the upper layer 2 is in contact with the lower layer 3 under load, the upper layer Component force applied from the foot through 2 and parallel to the longitudinal and lateral directions of the shoe To prevent two layers from slipping against each other when a certain force is generated. It is. If the surroundings of the upper layer 2 and lower layer 3 are reinforced, then the sole of the footwear! Connections may tear, crack, or slip. now One function is to store liquid in the notch 7 between the ribs 8 and to maintain the liquid in the notch 7 between the ribs 8. is to make the liquid storage volume in the space 4 larger.

In the embodiment shown in FIG. It is formed only below the soil ridges of the toes and heels.

According to the embodiment shown in FIG. A loop 7a is formed. In addition, a portion adjacent to the area of the profile 7a of the upper layer 2 A notch 7 and a rib 8 are formed in the part that is large and faces the closed space 4. ing. A rib 8 formed so as to be surrounded by the notch 7 connects the upper layer 2 and the lower layer. Slippage is prevented when the surfaces of layer 3 touch each other.

In the embodiment shown in FIG. The part where the upper layer 2 contacts the inner sole lining 9 when no weight is applied , and the profile IO in the plane of the lower layer 3 has no effect. Upper layer 2 is deformed. When the parts are stretched, each part will be subjected to a tensile force. As a result, the biggest pull The part under tension has a smaller degree of elongation than in the example shown in Figure 1.2. It becomes. In other words, the load will be applied to each part of the upper layer 2 in proportion to the tensile force. Ru.

According to the embodiment shown in FIG. 4, an opening 15 is formed along the periphery of the space 4. Ru. Through this opening, the pipe 11 extends to the upper part 6 of the footwear. Contacting Space 4. Each pipe 11 extends along the sole l and upper part 6 of the footwear. , that is, they are approximately evenly distributed along the periphery. Each pipe 11 has elasticity It is made up of walls that can expand if the internal pressure increases. depending on the case Therefore, each pipe 11 is connected by a connecting pipe 12 arranged horizontally. I can do it. In this case, the space 4, the pipe 11 extending upward, and the connecting vibe 1 2 will form a continuous space that will be completely filled with liquid. difference When the load is transferred from the foot, the upper layer 2 of the sole l of the footwear approaches the lower layer 3. If so, the volume of the space 4 becomes smaller, and part of the liquid flows from the space 4 to the pipe 11 and the connection. Flows towards vibe 12. and they are elongated, so that the instep 6 is Fits the foot and ankle more closely than before. This means that your feet are safely supported.

As soon as the load on the legs is removed, the space repeatedly returns to its original shape and pipe 1 1 and a part of the liquid forced into the connecting pipe 12 flows back into the space 4.

By doing so, the instep 6 that wraps around the foot and ankle becomes more relaxed, As a result, blood can flow freely within the blood vessels.

Figure 5.6.7 shows a cross-section of a sole element of a footwear.

As is clear from the drawings, retaining ribs 13 and adhesive ribs 14 are formed on the tread surface. It is. The pattern can be changed depending on the load.

The advantages of the footwear according to the invention are as follows.

Under any usage conditions, the sole 1 of the footwear is Fits perfectly over the entire surface of the sole of the foot. Also, the shape of the sole of this sole is Hold your feet evenly regardless.

When the load on the sole increases over a certain period of time and goes from 0 to a large value, the foot Not only ankles, knees, pillars and muscles, but also impulse loads that are harmful to health. I never receive it. Load points are regulated according to the applied load. due to load Due to the pressure rolling, the flexibility of the sole of the footwear is well regulated.

An additional benefit is that when the footwear is under load, the footwear tightens around the foot, ankle, and leg. wrapped, but loosely wrapped when not under load to prevent free flow of blood. The time it takes to recover is very short. load while there is no intermediate load does not occur.

The use of footwear by using an incompressible liquid with a viscosity higher than that of water The person should always feel that his/her feet are safely and securely supported. can. The filled liquid can radiate out of the closed space or exit the space through a narrow space. There's no running away.

international search report -11--as-i-s-m PCT/HU 89100032

Claims (1)

[Claims] 1. The sole of the footwear is made up of a double layer, an upper layer and a lower layer, and these two layers A closed space is formed between the layers, and this closed space is filled with a liquid substance. , in footwear made of an elastic material, formed on the sole (1) having a double structure. The space (4) is an undivided closed space that extends over the entire length of the sole. At least one of the layers of the double structure is capable of absorbing static loads from the foot to the sole and/or Areas that are subject to forces generated by dynamic loads, especially the heel, striated muscles, and toe muscles. It has a thinner and/or harder layer part on the periphery, and also has a double layered upper part. Ribs that are partially or completely distorted on at least one side of the recording layer (8) and a notch (7), which allows the liquid to be made of a non-flexible material. Facilitating or preventing the flow of substances along a predetermined path Footwear characterized by. 2. The rib (8) and/or notch (7) are endlessly curved. or a maze-like curved or distorted shape, with the minimum distance between the load points. Footwear according to paragraph 1, characterized in that the footwear is made of laces. 3. The liquid space of the sole (1) configured as a double layer is connected to the double layer. At least in a certain part corresponding to the leg, the upper part (6) of the footwear is formed by 2. Footwear according to claim 1, characterized in that the footwear is connected to the footwear. 4. In the upper part (6) of the footwear, each having an elastic wall and completely or partially a pipe (11) which is separated from the The connection pipe (12) is connected to the sole ( Footwear according to item 3, characterized in that the footwear is connected to the liquid space of item 1). 5. At least one of the two-layered sole (1) is made of an elastic member or a bubble. partially or completely for composite parts or other suitable material parts with Footwear according to any one of items 1 to 4, characterized in that the footwear is connected. 6. The ribs (8) formed on either side of the sole meet the cuts on the other sole (1). Footwear according to any one of items 1 to 5, characterized in that the footwear fits into the notch (7). . 7. The tread surface of the sole (1) is formed in a known pattern, or Retaining ring made of wear-resistant material to provide a reaction force in the direction of force action. Items 1 to 6 characterized in that it has a rib (13) or an adhesive rib (14). Footwear listed in any of the above. 8. The above liquid substance is a fluid having a specific gravity of 0.5 to 2 g/cm3 and a temperature of viscosity not affected by silicone oil or its mixture or molecular fluidity Any of clauses 1 to 7 characterized in that other similar materials are used. Footwear as described in.