JPH08224334A - Biodynamically mechanical roller skate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To cure so-called flat-foot by making it possible to put weight selectively on each part of the foot at the time of using this roller skate. SOLUTION: This roller skate is provided with front roller group 3 fixed to its sole or the front section of sole 2 and rear roller group 4 fixed to rear section of sole 2. This roller skate is made to put weight on each section of foot. Sole 2 is divided into solid front unit 5, flexible mid unit 6, and solid rear unit 7 and this the front unit and the rear unit have each roller unit in order to cure flat-foot, for example, by running with this roller skate on.

Description

Detailed Description of the Invention

The present invention relates to a skate, a sole provided on the shoe, a group of front rollers arranged and mounted on a front portion of the sole to form a running surface, and a rear surface portion of the sole arranged and mounted on the sliding surface. The present invention relates to a roller skate having a rear roller group that forms a roller.

[0002]

2. Description of the Related Art Nishi unique application publication 282 forming the starting point of the present invention
According to the prior art known from 1644, roller skates are known which can be used not only in sports but also for the treatment of muscle or bone disorders, in particular disorders of the legs or feet. . Such foot disorders are often due to lack of training of the leg muscles.

In a healthy foot, the weight is distributed and distributed from the hip joint to the knee to the foot. A healthy foot, which does not show anatomical deformation, has a total mass of 50 on the calcaneus in the standing position.
90% to 10 to 50 in the anterior and mid parts of the foot
%. During walking and running, the force distributed to the heel through the bone is kinematically distributed to the front part of the foot. That is, a healthy foot is maintained under weight loading due to the biomechanical balance provided by each bone and muscle portion of the foot.

However, approximately 70% of the population has so-called flat feet, which are caused by the weakness of congenital connective tissue, lack of training of feet, and long-term walking on a hard walking path.
It is known to walk for many years with rigid shoes. Flat feet already begin in the early childhood, reach adulthood, and are well defined. As shown in FIG. 4 (a), the normal deviation from the posterior axis of the foot is 0 to 6 °, but in the case of a flat foot, as shown in FIG. 4 (b), 6 ° or more, Deviations of 10 ° to 20 ° in extreme cases are observed. As a result of the inward tilt of the back of the foot, the longitudinal curvature of the sole is reduced resulting in a typical flat foot, with the entire back surface of the foot in contact with the ground surface in the standing position.

As a means for treating this problem, it is necessary to counteract the flat foot by gymnastics or training of the foot since early childhood. In this case, training the toes and heels,
Flexion and extension of the toes are important. However, conventional flatfoot treatments are, in principle, passive.
It did not require muscle development that is responsible or jointly responsible for malformations, but instead resulted in rest of muscle tissue.
This is because the unevenness of the sole of the foot is additionally supported by the pad.

As a therapeutic measure, the roller skates according to the state of the art mentioned at the beginning of the description can also be used. Running on roller skates, on the one hand, becomes a training of the bones and muscles of the foot and, on the other hand, allows the children to have a good free time and can continue this kind of treatment for a long time.

West unique application publication 2821644, country actual application registration 8711944, country patent application publication 2304853
The roller skates known from Japanese Patent No. 2250201 and Japanese Patent No. 2250201 use a rigid sole as a whole, but such a rigid sole makes the foot a complicated organ that is difficult to control, and the control is difficult. Rather, it comes from the understanding that it is performed by the thigh and lower leg muscles. In particular, such a sole cannot carry a selective weight load by each zone of the foot.

In the known roller skates as skates (Nishi-Nippon-Publication No. 1117013), the running rollers are directly attached to a foot plate composed of a sole and a heel. This foot plate consists of two parts which are longitudinally adjustable via an intermediate joint part, namely a sole part and a heel part. Each of these parts has a member with extremely high flexibility, both are superposed and phase-coupled with a tightening bolt,
Form the joint part. Therefore, a flexible portion is formed between the sole portion and the heel portion, and it is said that the wearer of the roller skates feels a feeling similar to normal walking or running on his / her feet.

Also, the other roller skates already mentioned above have a flexible sole intermediate zone, which, as a result of experiments, does not necessarily fulfill all the requirements for the therapeutic treatment of flatfoot.

In addition, from the above-mentioned conventional roller skates, a control member having a braking surface in contact with the surface of a running surface such as a street, which enables active braking by a skate wearer, is provided in the dorsal region of the skates. It is known that it can be provided.

[0011]

Therefore, the problems in this technical field and the purpose of the present invention are as follows.
In the roller skates listed in the technical field, it is to provide roller skates which can be selectively weight-loaded on each zone of the foot when the roller skates are used, and which thus makes it possible to treat so-called flat feet. .

[0012]

SUMMARY OF THE INVENTION However, the above-mentioned problems and the object of the present invention are to skate, a sole provided on the shoe, and a front roller which is arranged and mounted on a front portion of the sole to form a sliding surface. It has been found by the inventors that this can be solved or achieved by a roller skate comprising a group and a group of rear rollers arranged and mounted in the rear part of the sole to form a gliding surface.

Movement in the anterior and posterior parts of the foot can selectively configure the load on the gliding surface in each case. The movement of the rollers in the roller skates according to the invention can be controlled by the leg muscles. Therefore, the roller skates according to the present invention may provide a therapeutic effect for flat feet.

The rollers of the roller skate according to the present invention are arranged and installed in the respective zones of the sole, and the front part and the rear part of the foot are provided with a running surface which does not cause any problems in terms of balance or balance. It is formed. Therefore, especially safe roller skating is possible, and even young children can use this roller skating. The rollers of this skate are constructed in a unique manner. That is, the front roller group (at least one of them) can rotate only in one direction, but does not rotate in the other direction. This allows the vehicle to run in the forward direction, but kicking, that is, accelerating, is extremely easy because the rotation of the roller in the other direction is blocked. It is exactly the same as running and running.

The rear roller in the rear zone of the skate according to the invention can have a braking effect.
This makes the rear roller have a rotational resistance corresponding to the weight load, and the rear roller can freely rotate when the weight load applied here is below a certain threshold value, but when this weight load is above this threshold value, Correspondingly, a high rotational resistance is produced. In other words, when the weight load on the rear part of the foot is too large, the rear roller is braked, but when the weight load is small, for example, half, free roller skating is possible. Therefore, during skating, a weight load is forced on the front part of the foot, and the weight load on the rear part of the foot wearing the skates is reduced. This strengthens the leg muscles, especially the flexors.

During braking, in order to increase the load on the rear rollers and thus also to exert a braking action, the front part of the foot on which the skate is worn must be lifted up, so to speak. This strengthens the extensor muscles of the foot. In addition, the posture of the roller skates during free-skiing corresponds to the posture during alpine skiing, thus strengthening the muscles of the legs, upper thighs, lower thighs, and abdomen. Ideal as a training tool.

The weight load threshold for the rear rollers of this roller skate according to the invention is adjustable and the braking effect can be adjusted depending on the weight and on the degree of training.

It is preferable to use short shoes for the roller skates of the present invention. This is because the mobility of the foot portion is further increased. This further strengthens the leg muscles and enhances the therapeutic effect of the flatfoot.
Also, there is little risk of breaking the legs due to this roller skating. This is because the rollers on the bearing surfaces of the anterior and posterior portions of the foot form, so to speak, a gliding surface rather than a gliding line and have a low center of gravity.

The present invention will be described in more detail below with reference to the accompanying drawings which illustrate embodiments of the present invention.

FIG. 1 shows a side view of a skate (1) and its sole (sole) (2) of a biodynamic mechanical roller skate according to the invention. In the front zone of the roller skates, a plurality of rollers (3) are arranged and mounted so as to form a sliding surface. Similarly, a plurality of rear rollers (4) are arranged and mounted on the rear portion of the sole so as to form a sliding surface. The sole (2) is provided with three zones: a rigid front zone (5), a flexible intermediate zone (6) and a rigid rear zone (7). References herein to "rigid" and "flexible" should not be understood as absolute, but are expedient for the purpose of generally describing the sole or sole of a skating shoe according to the invention. It is a definition made to. In other words, the flexible sole central zone is composed only of the bent strip portion directly connected to the sole front zone, so that the angular position between the sole front zone and the rear zone is relatively large. It is also clear that it is composed of short parts. This is also a common fact in sports shoes. Also, the middle band of the sole is wide overall,
Even if it is wholly flexible, it can often result in a narrow flexure corresponding to this.

Similarly, in the case of an ordinary skate, the front sole zone (5) and the rear sole zone (7) are relatively movable. This is because the flexible middle zone (6) allows the front sole zone (5) and the rear sole zone (7) to have different relative angles depending on the load of the shoe.

Each sole band (5) of the roller skates,
(6) and (7) are configured as follows. That is,
The anterior sole zone (5) is adapted to the bearing surface of the bottom of the anterior part of the foot, so that the anterior zone of the sole (5) is adapted to bear the anterior part of the foot (fingers and their roots). Similarly, the rear sole zone (7) is adapted to the rear bearing surface of the plantar surface, so that the rear sole zone (7) supports the rear portion (the heel portion) of the foot. The sole front zone (5) forms a flat surface on its lower surface, and a plurality of front rollers (3) arranged and mounted on this plane in the sole front zone (5) form a sliding surface. Similarly, the sole rear zone (7) forms a flat surface on the lower surface thereof, and a plurality of rear rollers (4) are arranged and attached thereto. In the illustrated embodiment, the gliding surfaces formed by the roller groups (3), (4) occupy substantially the entire front and rear zones (5), (7) of the sole, respectively. In principle, three rollers are arranged in a triangular shape on the bearing plane of the front part of the foot, or two rollers are arranged like a normal roller skates, and two rollers are arranged on the rear part of the foot. Alternatively, one roller is provided which occupies a similar plane, which is particularly wide.

As shown in FIG. 2, the shape of the central flexible sole zone (6) is such that the front and rear sole zones (5),
Adapted to the shape of (7), these bands (5),
(6) and (7) are combined to form a sole, that is, a sole (2)
Is configured.

As shown in FIG. 1, the flexible mid-sole zone (6) is, in a preferred embodiment thereof, arched upwards and thus the mid-sole zone (6). ) Determines the overall morphology of the sole or sole (2) that is fitted to the foot. The sole middle zone (6) has a flat shape which does not bend so that the front zone (5), the flexible middle zone (6) and the rear zone (7) of the sole form the same plane in the unloaded state. You can also

In FIG. 3, when running on roller skates,
Various movement states of the sole (2) consisting of three zones (5), (6), (7) are shown diagrammatically. That is, (a) shows the sole (2) in an unloaded state (equal load state), that is, the skater upright state, and the front zone (5) and the rear zone (7) are evenly loaded and not shown. However, all the front and rear rollers are in contact with the ground surface. In FIG. 3, (b) is a front zone (5) of the sole.
Only the load is shown, which occurs during a roller skating run when kicking backwards for acceleration. In this case, the flexible sole intermediate zone (6) has an advantageous effect. In this state, the sole rear zone (7) is lifted up like when running with ordinary shoes, but the sole front zone (5) is almost in contact with the ground surface. At the same time, the front roller group, or at least one roller (3) arranged and mounted in this sole front zone (5), is braked so as not to rotate in the opposite direction. This means that when walking or running while wearing the roller skates of the present invention, it is possible to perform the same foot movement process as walking or running while wearing ordinary shoes. Next in FIG.
(C) in the rear zone of the skate sole (7)
Is in contact with the ground surface, but the front zone (5) is in a slightly lifted or raised state. The posture of the sole is that when the roller skates are braked, as described in detail below.

As described above, the roller skates of the present invention are
It is performed in the same way as walking and running with ordinary shoes on.
Unlike previously known roller skates, in which the front roller is rotatable in both directions and therefore kicking or acceleration is only possible by twisting the foot outwards, the roller skates of the invention are permitted in the case of ice hockey. You can kick like. That is, the roller skates of the present invention have the above-described configuration of the front roller (3).
Without twisting the foot outward, the front portion in contact with the sole ground surface can be kicked backwards ((b) in FIG. 3).

The rear roller (4) provided with a roller resistance member or a braking member due to the weight load freely rotates under the lower threshold condition in which the weight load applied thereto is low, and under the threshold condition in which the weight load is high (see FIG. 3). (See (c)), a large braking action is applied. During roller skating, the weight load is evenly distributed to the front part of the foot (front band of the sole) and the rear part of the foot (rear band of the sole).

As described above, the cause of the flat foot is considered to be that the weight load is strong on the back of the foot and weak on the front of the foot. Now, assuming that a heavy weight load is applied to the rear roller (4), a person walking or running wearing roller skates does not impede the forward roller motion, so that the load applied to the front part of the foot is increased. To increase
There is no choice but to reduce the load on the rear part. This results in muscle strengthening of the corresponding part of the foot as described above. However, the increased load on the rear part of the foot induces a braking action on the corresponding rear roller.
As the braking member, for example, a well-known brake pad in a general roller control mechanism can be attached to the outer edge of the rear part of the foot.

The overall movement course of the roller skates according to the invention can be adapted to walking and running with the usual shoes. However, unlike conventional roller skates,
The foot is not twisted outward to kick or brake. It should be noted that it is inevitable to apply an appropriate load to the front and rear parts of the foot in view of the aforementioned characteristics of the rear roller (4). Therefore, the roller skates of the present invention are also effective for treating flat feet.

The distance between the rear roller (4) and the sole rear zone (7) is also changed according to the weight load,
Can be adjusted. For this reason, for example, a rib can be mounted between the rear roller (4) and the sole rear zone (7) to change this distance. That is, at the upper threshold of weight load,
The distance between the rear roller (4) and the rear zone (7) is reduced so that the rear roller (4) abuts the friction surface. The friction caused thereby increases the rotational resistance of the rear roller (4), ie its braking force.
It is of course possible to use a shock absorber or the like using rubber elastic plastic instead of the narrowly defined spring.

It should be noted that in the embodiment of the present invention, the distance may be adjustable by screws. In this case, the weight load threshold can be easily reset. That is,
For example, the braking / braking characteristics of the rear roller (4) may be changed according to the training condition and weight of a person who uses the roller skates for the purpose of treating flat feet. Providing a weight scale for this screw adjustment allows reproducibility of weight load threshold resetting.

The skates for the roller skates of the present invention shown in FIG. 1 are constructed as short shoes unlike conventional roller skates. In this case, the roller skates have a lower center of gravity due to the arrangement of the rollers (3) and (4) in the sole (2) and also due to the greater running surface in the distribution of the rollers (3) and (4). The risk of spraining the foot while riding is significantly reduced, and no special protection of the ankle joint is required. Also, the use of boots increases the motility of the entire foot, which in turn increases the effectiveness of foot motion therapy. Of course, it is preferable that the skate boots be configured so as to extend beyond the ankle joint portion in order to support the ankle joint.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of roller skates according to the present invention.

FIG. 2 is a rear view of the roller skates shown in FIG.

FIG. 3 is a schematic explanatory view of a movement process including sectional views of three states of the shoe sole during use of roller skates.

FIG. 4 is a side view of the back of the foot.

[Explanation of symbols]

 1 ... Skate shoes 2 ... Sole, that is, sole, 3, 4 ... (front), (rear) roller 5 ... Sole (rigid) front zone 6 ... Sole (flexible) middle zone 7 ... Sole (rigid) rear zone

Claims (18)

[Claims] 1. A skate (1), a sole (2) provided on the shoe (1), a front roller group which is arranged and mounted on a front portion of the sole (2) to form a sliding surface, and a sole. A roller skate comprising a rear roller group (4) arranged and mounted on a rear portion of (2) to form a gliding surface, wherein the sole (2) is a rigid front zone (5) of the sole,
A rigid sole posterior zone (7) with a flexible sole intermediate zone (6) between these zones, a rigid anterior zone (5) carrying the anterior bearing surface of the foot, A rigid posterior zone (7) carries the posterior bearing surface of the foot, the anterior roller group (3), or at least one of these rollers (3) being rotatable in only one direction,
Biodynamic mechanical roller skates characterized in that they are made so that they cannot rotate in the other direction. 2. The front roller group (3) is located in the sole front area (5), and the rear roller group (4) is located in the sole rear zone (7).
The roller skates according to claim (1), wherein the roller skates are arranged and mounted so as to form a plane. 3. Roller skates according to claim 1, characterized in that the flexible sole intermediate zone (6) is curved upwards in an arch. 4. Roller skates according to claim 1, characterized in that the flexible intermediate zone (6) is constituted by a bent strip which is directly connected to the front zone (5). 5. The sole lower surface of the front zone (5), the flexible middle zone (6) and the rear zone (7) are substantially coplanar in the unloaded state. Roller skating according to item (1). 6. Roller skates according to claim 1, characterized in that the rear roller group (4) has different rotational resistances corresponding to weight loads. 7. The rear roller group (4) is configured to freely rotate when the weight load threshold is equal to or less than the weight load threshold, and to have a high rotation resistance when the weight load threshold is equal to or more than the weight load threshold. Roller skates according to item (6). 8. The distance between the rear roller group (4) and the sole rear zone (7) is variable, preferably this distance is adjustable in response to weight loading. Roller skates according to claim 1 characterized. 9. The distance between the rear roller group (4) and the sole rear zone (7) is variable, preferably this distance is adjustable in response to weight loading. Roller skates according to claim 7. 10. A ridge or an elastic member is provided between the rear roller group (4) and the sole rear zone (7), which corresponds to the weight load and which corresponds to the rear roller group (4) and the sole rear zone. Roller skates according to claim (1), characterized in that the distance between (7) and (7) is varied. 11. A ridge or elastic member is provided between the rear roller group (4) and the sole rear zone (7), which corresponds to the weight load and which corresponds to the rear roller group (4) and the sole rear zone. Roller skate according to claim (7), characterized in that it is adapted to change the distance between it and (7). 12. A ridge or an elastic member is provided between the rear roller group (4) and the sole rear zone (7), which corresponds to a weight load and which corresponds to the rear roller group (4) and the sole rear zone. Roller skates according to claim (8), characterized in that they are adapted to change the spacing between them (7). 13. If the distance between the rear roller group (4) and the sole rear zone (7) is greater than or equal to the weight load threshold,
Roller skates according to claim (10), characterized in that the rear roller groups (4) are each narrowed so as to abut the friction surface. 14. If the distance between the rear roller group (4) and the sole rear zone (7) is greater than or equal to the weight load threshold,
Roller skates according to claim (1), characterized in that the rear roller groups (4) are each narrowed so as to abut the friction surface. 15. The spacing between the rear roller group (4) and the sole rear zone (7) is adjustable by adjusting screws in accordance with a weight load threshold. Roller skating according to 14). 16. The distance between the rear roller group (4) and the sole rear zone (7) is adjustable by adjusting screws in accordance with a weight load threshold. Roller skating according to 13). 17. Roller skates according to claim 1, characterized in that the skates (1) are constructed as boots. 18. Roller skates according to claim 1, characterized in that the skates (1) extend long beyond the joints of the foot.