RU2380011C1 - Footwear with energy accumulation - Google Patents

Abstract

FIELD: articles of personal use.

SUBSTANCE: invention relates to footwear ensuring energy accumulation, including footwear for everyday use, sport footwear for running, jumping, footwear for mountaineers, as well as footwear used as rehabilitation means for recovery of work capacity of foot ligaments and muscles. In footwear with energy accumulation from lamellar spring deformation, including upper part of footwear, sole and fixing elements for fixation of foot position with respect to sole. Anterior part of sole is made in form of bent downward, fixed cantileveledly with respect to remaining part of sole lamellar spring, fixing elements also ensure pressing of anterior part of foot to sole spring. Upper part of footwear has possibility to ensure periodic change of angle between spring and posterior part of sole and is made from elastic material or contains, in zones subjected to stretching and contraction, easily deformed inserts, for instance crimped. Angle between bent spring and remaining part of sole from the side of support surface is less than 180°. Zone of fixation and bend of sole spring can correspond to beginning of metatarsus, sole toe phalanxes or can be nearer to heel. Spring can be made from elastic polymer material or from other elastic material. Initial angle of sole spring bending can be chosen depending on its properties, as well as footwear purpose and physical possibilities of user. Cross section of sole spring can be made constant or variable in length. Elastic properties and rigidity of sole spring can be constant or variable along length. Sole spring can have parts with C-shaped cross section for partial covering of foot. Anterior part of sole spring can be made curved, for instance for cohesion with projecting roughness of support surface.

EFFECT: increase of efficiency of energy accumulation use for user foot push and increase of their safety.

10 cl, 6 dwg, 2 ex

Description

The invention relates to shoes that provide energy storage, including shoes for everyday use, sports shoes for running, jumping, etc., shoes for climbers, as well as shoes used as a means of rehabilitation to restore the working capacity of leg muscle ligaments.

Regular shoes serve to protect a person's legs from external influences. In accordance with the purpose, it contains a sufficiently dense and strong sole and an associated top, fixing the position of the sole relative to the foot and protecting the foot if necessary from environmental influences.

The execution form of the sole and the top, depending on the purpose of the shoe, can be different (see. Great Soviet Encyclopedia, hereinafter BES. Shoes. Http://slovari.yandex.ru/dict/bse/article/00054/16400.htm?text=% D0% BE% D0% B1% D1% 83% D0% B2% D1% 8C).

These shoes do not have a significant effect on the way a person is moved. When walking, a person raises one leg, resting at that moment on the second, transfers the raised leg forward and lowers it onto the supporting surface (ground). The process is then repeated.

One of the features of human movement compared to most other mammals is the nature of the contact of the leg with the supporting surface. When transferring weight to the other leg, a person usually first rests on the heel of the foot and only then transfers the load to the entire foot.

The disadvantage of this method of movement when walking is the waste of energy. The gravitational component at each step is completely lost. The organs of the body that have the ability to partially accumulate energy, such as the Achilles tendon, ankle joint, etc., are not working effectively enough.

Most animals move in a different way. The primary touch of the supporting surface (earth) is carried out by the forefoot (front) of the leg (paw), while the ankle joint works to twist, the tendons stretch, accumulating energy, and then there is the release of energy and additional repulsion of the leg (paw), performing the next step or jump.

In humans, the primary resting on the fingers and metatarsus of the leg occurs only occasionally, for example, when running.

A large number of various devices are known for increasing the efficiency of a person’s movement, based on the accumulation of energy by an elastic element that is deformable when walking and when it is released when it returns to its original position.

Known shoes, mainly for sports, including a support device made in the form of covering the shin of the boot and the auxiliary system of levers spring-loaded with helical coil springs, the main of which is installed near the heel of the boot with the possibility of rotation and longitudinal displacement relative to this axis, and its main part comes out down relative to the sole of the boot (see patent RU No. 2238125, priority 04/27/1998 GB).

When moving, the shoe user raises and moves the foot and boot forward so that he and the protruding lever do not touch the ground, then when the boot moves down the main lever, first contacting the ground, turns to overcome the action of the spring, the spiral coil spring is deformed, storing energy, which will facilitate the further movement of the boot in the upward direction.

The disadvantage of this shoe and the method of movement in it is the significant design complexity and inconvenience of the method of movement, in particular, associated with the need to raise the shoe to a considerable height.

A similar principle was used when creating the design of the device according to US patent No. 6840893, priority 04/29/2002). This device is also based on the use of springs that deform when lowering the legs onto the supporting surface and returning energy when lifting the legs.

However, the design is also very bulky and unacceptable for use in everyday life.

Known shoes in the form of a high boot, equipped with a device for enhancing the jumping ability, containing a support element that provides reliable fixation of the foot and associated with it with the possibility of rotation covering the calf element, and the node rotation is located on the same axis with the ankle joint.

Both elements are interconnected by a tension spring (see DE patent No. 4038511, priority 03.12.1990).

The disadvantages of this technical solution are similar to other analogues: the complexity of the design, the inconvenience of operation, the inability to use in everyday life. The method of moving in such shoes requires considerable effort, special skills and a well-developed coordination system.

A device is also known for increasing jumping ability, including a support platform that fixes the position of the foot, the rear of which is connected via a vertical element to the fixing element of the device on the calf of the foot. The lower part of the supporting platform by means of a lever is pivotally connected with the lower part of the arcuate (onion-like) leaf spring. The upper part of the spring is rigidly connected to the fixing element of the device on the calf. The lower supporting part of the arcuate leaf spring is provided with a pad with a radial wear-resistant surface (see US patent No. 6840893, priority July 17, 2003).

The use of an arcuate leaf spring allowed us to get away from coil springs, which increased the energy storage efficiency and reliability of the device, however, the device is cumbersome, it cannot be used to increase the efficiency of the walking process, since the process of movement requires raising legs to a considerable height, considerable effort, special skills and good coordination of movement.

Some types of shoes are known, including leaf springs embedded in the sole.

For example, Ukko Uuno Hietala's invention (auth. St. SU No. 963447), selected as a prototype, describes cross-country skiing shoes, including interconnected shoe upper and a multi-layer sole, the toe of which is bent at an angle of 30 ° to heel parts. The sole can be made of synthetic elastic material. The sole may include a steel flat spring, bent at an angle of 30 ° to the horizontal and fixed in the forefoot of the sole, while a curved plate is placed with a gap above the spring in the heel-gel part of the sole.

The main purpose of the spring in this shoe is to ensure that the heel of the shoe is constantly lifted while the toe is fixed in the ski mount, which reduces the injury to the skier's legs.

In such ski boots, when the back (heel part) is lowered to the supporting surface, the spring is deformed, that is, the spring accumulates energy. When the spring is released, the accumulated energy can push the leg up.

It should be noted that in all similar designs of shoes with a spring located under the foot (see, for example, SU 1387967), the effect of the accumulated energy is expressed in pushing the foot up. Moreover, to achieve the effect, you should first step on the whole foot. So they move in the parade: they pull the sock and lower the foot to the whole foot. You can first step on the toe, but to deform the spring, you need to fully lower the foot to the support. With this step, in the indicated shoes, the effect of tossing the legs (marching) will be observed.

If you move on your toes, then the effect of energy storage will not manifest.

In ski shoes, selected as a prototype, this effect will also be almost imperceptible. This is explained by the nature of the movement of the skier:

- when moving without ski poles at the moment when one leg in the ski boot slides forward (the spring is compressed), the second leg is repelled by the toe of the ski track, while the skier's center of gravity is on the toe of this repelling leg. But the spring on this leg at the moment of the push is already free, the accumulated energy was released earlier, at the moment of separation of the leg from the supporting surface, pushing the leg up. Thus, in the main energy-intensive movement of the skier - the jerk, the energy accumulated by the spring is not used;

- when driving with ski poles, the effect is even less significant, since the body weight is redistributed, the main part during the push is on the poles. Thus, you can move in such shoes as follows:

- use only the energy accumulated by the spring: while the step of the skier will be very short, the movement is slow;

- neglect the accumulated energy and move, as described above, on toes.

The prototype is characterized by another significant drawback. While compressing the springs in both boots, stability loss is possible. Skis due to the large area compensate for this drawback, but if the skier is standing or moving in boots, but without skis, the risk of falling is high.

An object of the present invention is to increase the efficiency of using stored energy for pushing a user's foot and increasing its safety.

This problem is solved due to the fact that in shoes with energy storage from deformation of the leaf spring, including the sole and the elements fixing it relative to the foot, according to the invention, the front part of the sole is made in the form of a spring bent downward cantilever fixed relative to the rest of the sole of the leaf spring, and the fixing the elements also provide clamping of the front of the foot to the spring of the sole, while the locking elements to allow periodic changes in the angle between in the spring and the rear part of the sole may be made of elastic material or may comprise in the zones subject to tension and compression, easy deformable paste, such as corrugated.

The initial angle between the bent spring and the rest of the sole from the supporting surface is less than 180 °.

In this case, the following may be provided:

- the area of attachment and bending of the spring of the sole may correspond to the beginning of the metatarsus, phalanx of the toes of the foot or be closer to the heel.

- the spring may be made of an elastic polymeric material or other elastic material.

- the initial angle of bending of the spring of the sole can be selected depending on its properties, as well as the purpose of the shoe and the physical capabilities of the user.

- the cross section of the spring of the sole can be made constant or variable in length.

- the elastic properties and stiffness of the sole spring can be constant or variable in length.

- the spring of the sole may have sections with a C-shaped cross section for partial coverage of the foot.

Thus, the object of the invention is shoes, in which a leaf spring, designed to accumulate the energy spent on its deformation when walking, and the subsequent return of energy when removing the load, is combined with an element of ordinary shoes - the sole, while its initial position is the bend down.

Patent studies have shown that the claimed shoes meet the criteria of "novelty" and "inventive step".

Shoes can be manufactured in an industrial or artisanal way, therefore, meets the criterion of "industrial applicability".

The invention is illustrated by drawings, which represent:

figure 1 - the appearance of shoes with a composite sole and the initial angle between the spring and the rest of the sole a little less than 180 °;

figure 2 - shoes with a composite sole and an initial angle significantly less than 180 °;

figure 3 - shoes with a composite sole and the angle between the spring and the back of the sole less than 90 °;

figure 4 - options for deformation when walking the soles with a composite sole, shown in figure 1, depending on the physical properties (elasticity, stiffness) of the spring (the dotted line shows the initial free position of the spring) and the magnitude of the load, including:

4a - under load, the spring is straightened (the spring and the rest of the sole are located in the same plane);

4b - under load, the spring is bent to the side opposite to the initial position;

4c - with insufficient exposure to body weight or insufficient muscle effort, a stiff spring does not reach a flat state, it remains bent down under load, although with an angle greater than the initial angle between the spring and the back of the sole less than 180 °;

5 - presents a schematic section of the claimed shoes;

6 - shows the image of the spring - the front of the sole of the shoe (top view and side view).

The inventive shoes include sole 1 and upper 2.

The sole 1 is made integral. The front part of the sole 1 is an elastic leaf spring 3, cantilever mounted relative to the second part 4 of the sole 1. The cantilever spring is a continuation of the rear part 4 of the sole 1. In the initial position, the spring 3 is bent downward at an angle α with respect to the rear part 4 of the sole 1.

The bend zone of the sole 1 may correspond to the traditional places of the bend of the foot: the end of the toe, the end zone of the metatarsus (metatarsus) or the zone adjacent to the heel.

The upper 2 of the shoe performs the function of fixing the position of the foot relative to the sole 1, including the function of the elements fixing the position of the foot relative to the bendable spring 3.

The upper 2 of the shoe can be made partially or completely of elastic material, providing, on the one hand, the possibility of periodic bending or bending of the sole 1, and on the other hand, pressing the foot, including its front, to the sole 1. Moreover, if desired, the user can force the muscles to prevent the bend of the spring of the sole (return of the spring to its original position) or force it to straighten.

In shoes without the user's legs placed in it, the initial angle α between the front elastic and rear main parts 3 and 4 of the sole 1 is less than 180 ° (see figures 1, 2, 3). The angle can be different, including the angle can be less than 90 ° (figure 3).

The spring 3 of the sole can be made of elastic polymer materials, and the characteristics of the spring can be either constant along its entire length or variable.

The form of the claimed shoe, depending on the purpose, may be different. It can be warm winter shoes in the form of boots or boots, or it can be lightweight summer, for example, in the form of sandals or sneakers (not shown in the drawings).

In any case, the shoe top is capable of periodically bending and straightening the spring 3 of the sole 1, while the human foot is fixed relative to the sole 1 and can move after the spring 3 of the sole 1 or resist movement, preventing the spring 3 from moving (returning) to its original position.

The top 2 may have the usual shape for closed shoes, but it should provide the possibility of periodically changing the angle between parts 3 and 4 of the sole 1 in a fairly wide range. For this, it can be made of elastic material or may contain easily deformable inserts, for example, corrugated ones (not shown in the drawing) in areas subject to tension and compression.

The upper 2 of the shoe may be or include locking elements that provide reliable retention of the foot, including its front forefoot-metatarsal part in the shoe. The fixing elements can be made in the form of:

- the forefoot of the upper shoe, rigidly connected with the front of the sole - a spring 3 and forming a cavity to accommodate the toe of the foot;

- covering foot of belts, tapes, etc. rigid or elastic fixing elements, while these or other fixing elements also prevent the displacement of the foot along the sole or its parts;

The initial angle between the parts of the sole 1 (spring 3 of the sole and the rear part 4 of the sole) is less than the traditional angle of 180 °. The smallest possible angle can even be less than 90 ° (see figure 3).

Shoes with an angle approaching 90 ° and less than 90 °, it is advisable to use in sports or for training, because in this case, before the start of the movement, certain muscular efforts will have to be applied for the initial preliminary stretching (extension) of the spring 3, in order to avoid significant bending the toe of the foot. The same efforts are necessary for any separation of the leg from the supporting surface. The use of shoes with angles approaching 90 ° (Fig. 3) is associated with a certain risk and therefore requires special skills.

In some embodiments, the size and shape of the cross section along the length of the spring can be different, for example, to increase the stiffness of the spring in certain areas, the cross-sectional area can be increased.

Possible implementation of the spring with a partial coverage of the foot. In this case, the spring may have a C-shaped section in some areas.

The amount of spring stiffness can be selected depending on the purpose: a “soft” spring for everyday shoes and a stiffer spring for sports shoes.

The appearance of the claimed shoes is unusual.

Unlike ordinary shoes, the sole is not straight (without kinks), but has a pronounced kink, the angle between the parts of the sole (cantilever spring and the rest of the sole) is less than the traditional angle of 180 °, the front part of the sole is bent down in the initial state.

The implementation of the sole part in the form of a cantilever elastic element, bent downward in the initial position, provides periodic deformation of the sole under the influence of the user's mass and / or efforts from the muscles of the legs and tendons with the simultaneous accumulation of energy expended on this deformation. When transferring body weight from one leg to another, the spring on the sole of the first leg, freed from the effects of the mass of a person, tends to return to its original bent down position. The return of the spring to its initial bent position can be made gradually or quickly enough, while it pushes the finger part of the foot from the supporting surface to move the leg forward. The process of moving in the inventive shoes is similar to the movement on tiptoe: the user pushes away from the supporting surface at each step, and repulsion occurs automatically.

During normal walking, the deformation of the spring is mainly provided by the mass of the user. When the leg is torn from the support and the muscles of the foot are relaxed (the foot does not try to maintain a flat position of the spring), the angle between the front and rear parts of the sole due to the release of the spring returns to its original value.

Landing due to the bending of the spring is carried out on the protruding toe of the foot, and only then, under the influence of the mass of a person, the sole is straightened and the foot fully or partially supported. With full contact, the angle between the front forefoot and the main back of the sole approaches the traditional 180 °.

However, a different character of movement is possible: landing may occur first on the calcaneal part of the leg with simultaneous deformation of the spring under the influence of the body mass of a person to a flat state.

It is also possible such a movement, when a person due to the influence of the muscles of the foot prevents the spring from bending at times when the leg does not rest on the surface. In this case, the sole during the movement remains almost straight and the landing can be any, depending on the desire of the user.

Depending on the person’s mass and muscle strength, it is possible to move with maximum deformation of the spring until it fully rests on the foot (the angle between the spring and the rest of the sole is close to 180 ° or with partial deformation of the spring (the angle between the parts of the sole remains less than 180 °), the person moves tiptoe ”, the back of the foot does not touch the supporting surface.

The initial bending angle of the spring may be different. For example, when using such shoes with people who are conservative and not very physically strong, it is advisable to use relatively small deviations from the traditional flat sole, to use shoes with an initial angle of 165 ° -175 °. For young people and trained people, the starting angle between the spring and the back of the sole can be 140 °. Teenagers will love more extreme options with angles approaching 120 °. For training athletes, as well as for extreme movements, the starting angle can approach 90 ° or even be less than 90 °.

It should be noted that not only the magnitude of the initial deviation of the front of the spring-sole determines the effect of the energy accumulated by this shoe. Efficiency is largely determined by the characteristics of the spring: its elasticity and stiffness, that is, the material from which the sole of the shoe is made, the geometry of the spring, etc. The stiffer the spring, the smaller the initial angle can differ from traditional angles to achieve the required shoe efficiency.

The stiffness and coefficient of elasticity can be distinguished by the length of the spring, for example, in the bend zone, the spring can be less rigid than in the rest of the spring.

In addition, it should be noted that in the inventive shoes to facilitate movement, not only the elasticity properties of the sole are used. The back of the sole, for example, located under the heel, when pushing the spring from the supporting surface, acts as a lever relative to the mating point of the spring and the back of the sole. In this case, the action of the released energy accumulated by the spring is supplemented by the action of the lever. The spring, turning relative to the point of cantilever closure, acts on the back of the sole, trying to turn it up.

The characteristics of the elements fixing the position of the foot relative to the sole are also essential. These elements should press the foot to the sole in any position, including the initial curved position of the spring. In addition, this element should provide the possibility of partial or full straightening of the sole (increasing the angle between the sole spring and the back of the sole up to 180 °) due to the muscular action of the user. An additional condition is the ability to change the angle without destroying parts of the shoe.

Moving taking into account the described features can be in the form of traditional walking, running, jumping, etc.

The implementation of the front of the sole in the form of a bent hook allows you to use shoes to move on stones, rocks. In this case, a person, if necessary, can “cling” with one foot to the unevenness of the soil and at this moment find a suitable support for the second leg. The spring presses the front of the sole with a curved hook-shaped end and with it the toe of the foot to the selected protruding support. Then, by tension of the muscles, the person “straightens” the spring and “unhooks” from the support, transferring the weight to the other leg.

Such shoes allow you to effectively use the physical abilities of a person, in particular, to fully use his weight and ensure the effective functioning of the muscles and tendons of the foot.

The specified implementation makes the shoes light, simple and convenient to use, allowing you to effectively use the mass of the user and the work of his muscles to accumulate (accumulate) energy and transfer this energy to repel legs. Such shoes can be used both in everyday life, and by different categories of users, and for sports. It can be used to develop joints after injuries, etc.

The movement in the inventive shoes is as follows. A person chooses shoes with the most suitable characteristics of a spring 3 and fixing elements. In order to wear the claimed shoes, a person must either allow the foot to bend down after the sole 1 under the action of the fixing elements, or immediately in the process of shoeing with the muscle muscles to partially or fully straighten the spring, that is, increase the angle between the spring 3 and the rest of the sole 4 of the sole 1 to the maximum possible 180 °.

Next, a person rises on a supporting surface (earth), while the weight of a person’s body acts on the spring. Under its influence, the spring 3 is deformed with the approach of the angle between the parts of the sole 1 to 180 °.

Then the person begins to move. He raises one leg while continuing to lean on the other leg. When lifting the legs, the spring is released from the effects of the mass of a person. If the user does not apply certain muscular efforts, then the angle between the spring decreases to the initial one, at the same time due to the created moment in the cantilever closing zone of the spring, the legs are pushed forward and up. The foot of the foot partially or completely bends down along with the bending sole. Further, this leg descends to the supporting surface. The foot can touch the supporting surface with the toe and only then, overcoming the action of the spring, the foot deforms it to an angle of 180 ° and rests on the entire foot.

With a large mass and trained muscles, a person, when walking, even with a fairly stiff spring, rests on the entire surface of the foot. With a small mass and weak muscles, the impact of a person may not be enough for the complete deformation of the spring and he will move, relying only on part of the foot, for example, move “on tiptoe”.

It should be noted that the effectiveness of shoes in relation to the use of accumulated energy will decrease sharply if you rely mainly on the heel when lowering your legs. In this case, the front of the leg, bent down after the spring, remains bent. The leg rests only on the heel.

If you carry out the movement with the primary detachment of the heel (support on the toe) and repulsion from the supporting surface of the forefoot (walking on the toes), then the spring acts on the toe of the leg most effectively.

Interesting opportunities are provided by such shoes for jumpers. They can prepare their body for the jump and complete it at the optimal moment, which will significantly increase the effectiveness of the jump. To do this, the user performs a preliminary “swinging”: partial compression and relaxation of the spring due to the action of muscles with a gradual increase in the amplitude and frequency of oscillations. With maximum deformation of the spring, he jumps. In this case, the occurrence and use of the resonance effect is possible.

The same actions can be carried out in preparation for running, especially when running for short distances. Rocking will provide a more powerful leap at the start.

In the inventive shoes, you can sit, stand, walk at a slow or fast pace, run, jump. Claimed shoes can be used by climbers.

Examples of specific performance.

Example 1

Shoes in the form of sandals, in each of which the sole is formed by two elements: the back is a traditional sole, and the front is made in the form of a cantilever mounted relative to the rear of the spring, made of elastic polymer material. The spring fixing zone corresponds to the beginning of the metatarsus. The angle between the shoulders by the spring and the rest of the sole is 170 °. In the front of the sandal, the nose is connected to the spring, providing a constant pressure of the fingers to the spring.

In addition, there are leg-fixing elements in the form of straps connected to the back of the sole and covering the foot. This combination of locking elements provides reliable foot retention in the shoe and at the same time provides a toe clamp to the sole spring.

The user's legs are located in shoes, fastening fixing belts are fastened. The deviation of the spring relative to the back of the sole is relatively small (approximately 10 °), the toes allow such an excess, so it is quite easy to shoe. Next, the user puts his feet on a support (floor, ground, etc.). Under the influence of the user's weight (gravitational forces), the springs are deformed, the angle between the spring and the back of the sole approaches 180 ° (they are located in the same plane).

At the beginning of the movement, one of the legs begins to break away from the support. In this case, the muscles of the plantar surface that bend the foot contract, as a result of which the foot not only separates from the surface, but is also repelled by the fingers, which increases the forward speed. In this case, the second leg remains supporting. In addition to the traditional pattern of exposure to muscular energy, allowing the foot to push off from the supporting surface, in the inventive shoes there is an opportunity to strengthen repulsion through the use of energy stored in the spring. The spring at the moment of heel detachment from the supporting surface and then with the gradual detachment of the entire foot gets the opportunity to return to its original position, while the sole in the zone of closing the spring due to the moment of force pushes the leg forward and up. Moreover, the pushing begins from the moment the heel breaks off the support and ends with a complete lift of the leg.

Then, the supporting leg becomes rocking and, first, by contracting the muscles that bend the thigh, it approaches the frontal surface of the body, then it moves forward to create a new support for the body and prevent it from falling. During the transfer of the leg from the rear to the front, the spring is free from gravitational forces. The front of the foot can be oriented in the direction of the free position of the spring - the front of the sole, that is, at an angle less than 180 ° with respect to the back. But it can be a muscle effort put in the usual position with respect to the back (angle 180 °).

Further, this leg becomes the supporting one. The initial touch of the surface can be a heel (traditional rolling), or it can be a toe (walking or running on toes). At this moment, the spring begins to deform under the influence of the user's weight, storing energy.

The user can move, stepping first on the heel, and then rolling on the toe, or first on the toe, and then on the heel, or step only on the toe. In any case, the spring is deformed and, upon release, pushes the leg of the user performing a push.

The process is then repeated.

Example 2

Sports shoes, such as sneakers, in each of which the sole is formed by two elements: the back is a traditional sole, and the front is made in the form of a console mounted relative to the rear of the spring, made of elastic polymer material. The spring fixing zone is close to the heel. The angle between the shoulders by the spring and the rest of the sole is 140 °. A sufficiently stiff toe is provided in front of the sneaker, which provides finger pressure to the spring.

The rest of the upper part of the shoe is made of elastic material and contains fasteners or laces. In areas subject to significant periodic tension and compression as a result of deformation and release of the spring, inserts made of corrugated material are made. Thus, in this shoe, the fixing elements are the described shoe upper.

The user's legs are located in the shoes. Since the angle between the spring and the back of the sole is large enough (40 °), then the user with muscle tension should reduce this angle to an acceptable value, and then fix all the fasteners provided or tie the laces. Next, the user puts his feet on a support (floor, ground, etc.). Under the influence of the user's weight (gravitational forces), the springs are deformed, the sole with the spring becomes almost flat (180 ° angle). While the leg rests on the supporting surface, the user can relax the muscles. At the beginning of the movement, one of the legs breaks away from the support, the released spring returns to the initial angle between the sole and back, while pushing the user's leg. Moreover, the pushing begins from the moment the heel breaks off the support and ends with a complete lift of the leg. The user must not allow the spring to fully return to its original position, but stop the process with muscle effort.

Unlike the prototype, the user can not lower his foot on the support completely, but move around on toes. In this case, the spring will deform, and then, when lifting the legs, it will be released. The released spring energy will also push the user's foot.

The tests carried out confirmed that with the correct selection of the initial angle and the possibility of deformation of the top 2, the claimed shoes are convenient for any categories of users, and the speed of movement increases significantly. At the same time, the efforts expended by the user to move with deformation of the spring practically do not differ from the efforts expended to move in ordinary shoes.

The above examples are not exhaustive, and it is possible to use various configurations and modifications of the invention without deviating from its essence, formulated in the proposed claims and defined by them.

Claims (10)

1. Shoes with energy storage from deformation of the leaf spring, including the upper of the shoe, the sole and the fixing elements for fixing the position of the foot relative to the sole and providing a pressure of the front of the foot to the sole spring, as well as a leaf spring, cantilever mounted relative to the rest of the sole, characterized in that the front of the sole is made in the form of a plate spring bent down, while the top of the shoe has the ability to provide periodic changes in the angle between the spring and the back of the sole and is made of elastic material or contains in areas prone to stretching and compression, easily deformable inserts, for example, corrugated. 2. Shoes according to claim 1, characterized in that the initial angle between the bent spring and the rest of the sole from the supporting surface is less than 180 °. 3. Shoes according to claim 1, characterized in that the area of attachment and bending of the spring of the sole corresponds to the beginning of the metatarsus, phalanx of the toes of the foot or should be close to the heel of the foot. 4. Shoes according to claim 1, characterized in that the spring is made of an elastic polymer material or other elastic material. 5. Shoes according to claim 1, characterized in that the initial angle of the limb of the spring of the sole is selected depending on its properties, as well as the purpose of the shoe and the physical capabilities of the user. 6. Shoes according to claim 1, characterized in that the cross section of the spring of the sole is made constant along the length. 7. Shoes according to claim 1, characterized in that the cross section of the sole spring is made variable in length. 8. Shoes according to claim 1, characterized in that the elastic properties and stiffness of the sole spring are constant in length. 9. Shoes according to claim 1, characterized in that the elastic properties and stiffness of the sole spring are variable in length. 10. Shoes according to claim 1, characterized in that the sole spring has sections with a C-shaped cross section for partial coverage of the foot.

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