JP2001137003A - Footwear - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide footwear provided with both a back stretching function and a stretch function suitable for stretching the back sides of leg parts. SOLUTION: In footwear 10, a wearing band 13 for fastening a foot is provided for a longitudinal middle part of a sole part 11 for mounting a foot, and a variable part 12 to be sunk by the addition of weight is provided from one longitudinal end of the sole part 11 to the middle part. By arranging the variable part 12 on the front side and adjusting the way of adding body weight to the variable part 12, it is possible to adjust and use the footwear 10 for normal walking and for walking in an on-tiptoe, high-heeled state. In addition, by arranging the variable part 12 on the rear side and adjusting the way of adding body weight to the variable part 12, it is possible to freely adjust and use the footwear for stretching and walking to stretch Achilles' tendons, calves, etc., on the back sides of legs and for normal walking.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to footwear such as sandals and shoes, and more particularly to footwear having a function of extending the back muscles and a stretching function suitable for extending the rear side of the leg.

[0002]

2. Description of the Related Art
A sandal, which is an example of this type of footwear, is composed of a sole portion 1 on which a foot is placed and a crawler belt 2, as shown in FIG.
The sole portion 1 is provided with an inclination from the toe portion (toe portion) 1a to the heel portion (heel portion) 1b so that the heel side is higher. In such conventional sandals, when the sandals are worn, the heel of the foot is at a higher position on the toes, so that there is an effect that walking can be performed in a good posture with the back muscles extended. However, by continuously wearing sandals with the heel higher than the toes, the Achilles tendon, which is the rear part of the legs,
Since the calf muscles and the like continue to be shortened, there is a problem that fatigue is accumulated and blood circulation disorder and the like are easily caused.

On the other hand, for example, Japanese Patent Laid-Open No.
As shown in Japanese Patent Publication No. 01 (see FIG. 8), footwear in which the toe portion 3a of the sole 3 is formed much higher than the heel portion 3b is presented. With regard to the footwear, since the heel side is low, problems such as blood circulation obstruction of the legs are solved by pulling the rear side of the legs. However, since the toe portion 3a is much higher than the heel portion 3b, normal walking is performed. Is difficult,
There is a problem in that it is easy to fall down and it is rather easy to be tired by walking for a long period of time in an irregular posture, which is not practical. An object of the present invention is to solve the above-mentioned problem, and an object of the present invention is to provide footwear having a function of stretching the back muscles and a stretching function suitable for stretching the rear side of the leg.

[0004]

In order to achieve the above object, a structural feature of the invention according to claim 1 is that a crawler belt for hooking a foot is provided at a longitudinally intermediate portion of a sole portion on which a foot is placed, and a sole portion is provided. Is provided with a variable portion that sinks by adding weight to a portion from one end in the longitudinal direction to an intermediate portion.

According to the first aspect of the present invention, the footwear is used in a state where the variable portion is located on the front side, so that the footwear can be added as it is or slightly to the toe side of the foot. Thereby, since the sole portion can be in a flat state or a normal footwear state in which the front side is slightly sunk, walking can be performed in a natural state. In addition, by putting enough weight on your toes,
The high heel state in which the front part of the sole portion sinks greatly to the tiptoe can be obtained, and walking in a good posture with the back straightened can be performed. However, if the user is tired of walking in this state, the user can return to walking in a natural state by adjusting and reducing the ratio of the weight applied to the toes. That is, it is possible to freely switch between the normal walking state and the walking state with the high heels of the toe by adjusting the way of adding weight to the variable part with the footwear in a state where the variable part is located on the front side.

When it is desired to eliminate the fatigue of the foot, the footwear should be used with the variable portion being located on the rear side, and the heel portion is greatly lowered by applying sufficient weight to the heel of the foot. It can be in a crowded state. Along with this, the Achilles tendon and calf on the rear side of the foot can be greatly extended compared to a state in which normal footwear is worn. As a result, a stretching effect is added, and metabolism of the foot can be activated, so that fatigue of the rear portion of the leg can be removed, and occurrence of inconvenience such as impaired blood circulation can be prevented. As a result, it is possible to remove the chills and swelling of the foot caused by the blood circulation disorder of the foot due to the conventional footwear structure, so that a diet effect is exhibited. Also leads to improvement. Also in this case, it is possible to suppress the sinking of the variable portion by adjusting the degree of weight applied to the heel side, and it is possible to easily return to a natural walking state.

Another feature of the invention according to the second aspect is that in the footwear according to the first aspect, the variable portion is made of an elastic material. As the elastic material, various rubber materials, resin materials having elasticity such as urethane, and the like are used. This allows the variable portion to sink or return to its original state due to the addition of weight to the variable portion provided on the sole portion, and can be reliably performed by the displacement of the elastic material.

According to a third aspect of the present invention, in the footwear according to the first aspect, the variable portion is made of a flexible material and urges the inside thereof in the thickness direction. That is, a spring member is provided. Thereby, the sinking or the return to the original state due to the weight being added to the variable portion of the sole portion can be reliably performed by the elasticity of the spring member.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a front view of a shoe according to a first embodiment. Footwear 10
Is provided with a sole portion 11 on which a foot is placed and a crawler belt 13 which is disposed at an intermediate portion in the longitudinal direction of the sole portion 11 and on which the foot placed on the sole portion 11 is hooked. ing. The sole portion 11 has a horizontal surface on which the foot is placed, and its thickness is usually about 6 to 7 cm. However, the thickness can be appropriately changed. Although the sole portion 11 is formed of a hard rubber material or the like, as shown in FIG. 1, between the longitudinal middle portion M and one end N (the left end in the drawing), the front side and the bottom side from the front side. A portion having a substantially right-angled triangle in a vertical cross section sandwiched between the inclined surface and the inclined surface is a variable portion 12 formed of a soft rubber material having a large elastic deformation. That is, as shown in FIG. 2, the variable portion 12 of the sole portion 11 sinks so as to be able to return by adding weight.

[0010] The footwear 10 having the above structure is used with the variable portion 12 disposed on the front side as shown in FIG. 3 when performing normal walking. When the foot is placed on the sole portion 11 and the weight is slightly applied to the toe side of the foot, the variable portion 12 sinks and the sole portion 11 is slightly inclined forward, so that the user walks in a natural state. Can be. Further, by adding sufficient weight to the toe side in this state, a high heel state in which the front side of the sole portion 11 sinks greatly can be achieved, and walking in a good posture with the back muscles extended can be performed. However, if the user is tired of walking in this state, the user can return to walking in a natural state by adjusting and reducing the ratio of the weight applied to the toes. As a result, the footwear 10 can prevent excessive fatigue as compared with footwear fixed with high heels. That is, in this shoe, the variable portion 12 is arranged on the front side, and the variable portion 1
Depending on how the weight is added to 2, it is possible to freely adjust the use between normal walking and walking in a high-heeled state with a toe.

When it is desired to eliminate foot fatigue, FIG.
As shown in FIG. 1, the footwear 10 is used by disposing the variable portion 12 on the rear side. By placing the foot on the sole portion 11 and applying a sufficient weight to the heel side of the foot, the variable portion 12 can be sunk based on the elastic function, and the heel side can be lowered with respect to the toe. . Along with this, the Achilles tendon and calf on the rear side of the foot can be greatly extended as compared with a state in which normal footwear is worn. That is,
The metabolism is activated by the addition of a stretching effect to the feet. Therefore, it is possible to remove the fatigue of the rear part of the foot, and to remove the coldness and swelling of the foot due to impaired blood circulation of the foot, a diet effect appears,
In addition, due to the characteristics of the present invention, the back muscle is inevitably lengthened, which leads to improvement of systemic disorders. Also in this case, it is possible to suppress the sinking of the variable portion 12 by adjusting the degree of the weight applied to the heel side, and it is possible to easily return to the natural walking state. That is, this footwear 10
Is arranged with the variable portion 12 on the rear side, and is used by freely adjusting between a stretch walking for stretching a calf or the like on the rear side of the foot and a normal walking for depending on how to add weight to the variable portion 12. be able to.

As explained above, this footwear 10
By changing the position of the variable part 12 back and forth, and further adjusting the weight applied to the variable part 12, it is possible to walk in a natural state with one foot for normal walking and with a good posture with the back muscles extended This is very convenient because it can be used in three ways, one for walking while standing on the toes, which allows for walking, and the other for stretching walking, which can stretch the Achilles tendon or calf on the back side of the foot.

As a modified example, as shown in FIG.
Between the longitudinal middle part M and one end side N of the sole part 11 of the footwear 10, the entire part from the surface to the vicinity of the bottom is made of a soft rubber material, and the variable part 1 which sinks so as to be resettable
It was set to 5. With this, the same effect as in the first embodiment can be obtained.

Next, a second embodiment will be described. In the present embodiment, the sole portion 21 of the footwear 20
As shown in FIG. 6, the surface portion 22 and the bottom portion 23 are formed into a thin plate shape formed of a hard rubber material or the like, and the intermediate portion sandwiched between the surface portion 22 and the bottom portion 23 is an intermediate portion from one end side in the longitudinal direction. Is formed from a hard material equivalent to the surface portion 22 and the bottom portion 23, and a portion from the intermediate portion to the other end is a soft portion 24a formed from a soft material such as soft rubber. Further, a spring member 24b such as a coil spring that expands and contracts up and down is disposed in the soft portion 24a, and the variable portion 24 sinks by adding weight together with the soft portion 24a. A crawler belt 25 is provided at an intermediate position in the longitudinal direction of the sole portion 21.

In the footwear 20 having the above structure, the first
As shown in the embodiment, by using the variable part 24 arranged on the front side and adjusting the weight applied to the toe side of the foot, as shown in FIG. By adjusting the forward tilt state of the sole portion 21 depending on the degree, it is possible to switch between walking in a natural state and walking in a high heel state standing on a toe. By adjusting the weight applied to the heel side of the foot by using the variable portion 24 at the rear side, as shown in FIG. 6 (c), the variable portion 24 based on the elastic function of the spring member 24b is used. The amount of sinking can be adjusted, and the Achilles tendon and calf on the back of the foot are stretched as compared to those wearing normal footwear. Can be. That is, the footwear 20 of the present embodiment
In the same manner as in the first embodiment, by changing the position of the variable portion 24 back and forth, and further adjusting the manner of applying weight to the variable portion 24, a pair of footwear can be used for normal walking, It can be used in three ways: for walking in a toe standing state and for stretching walking.

In the above-described embodiment, the case where the present invention is applied to sandals will be described, but the present invention is not limited to this and can be applied to other footwear such as slippers and shoes. In addition, the footwear described in each of the above embodiments is merely an example, and various modifications can be made without departing from the gist of the present invention.

[0017]

According to the first aspect of the present invention, by changing the position of the variable part back and forth, and further by adjusting the manner of applying weight to the variable part, one pair of footwear can be placed in a natural state. For normal walking that can walk, for walking in a toe standing state that can walk in a good posture with the back muscles stretched,
It is very convenient because it can be used in three ways: for stretching and walking for stretching the Achilles tendon and calf on the back of the foot.

Further, the variable portion of the sole portion is made of an elastic material or a flexible material and a spring member is provided inside, so that the variable portion can be reliably sunk. Effect of the invention).

[Brief description of the drawings]

FIG. 1 is a front view showing footwear according to a first embodiment of the present invention.

FIG. 2 is a front view showing a state in which a variable part of the footwear is sunk.

FIG. 3 is an explanatory diagram showing a use state when a variable part of the footwear is arranged on a front side.

FIG. 4 is an explanatory view showing a use state when the variable part of the footwear is arranged on the rear side.

FIG. 5 is a front view showing a state before and after sinking of a variable portion of a shoe according to a modified example.

FIG. 6 is a partially cutaway front view showing a state before and after sinking of a variable portion of the footwear according to the second embodiment.

FIG. 7 is a front view showing a conventional example of footwear.

FIG. 8 is a front view showing another conventional footwear.

[Explanation of symbols]

Reference Signs List 10 footwear, 11 sole part, 12 variable part, 13 crawler belt, 15 variable part, 20 footwear, 21 sole part, 22
... surface part, 23 ... bottom part, 24 ... variable part, 24a ... soft part, 24b ... spring member, 25 ... crawler belt.

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 4F050 AA01 AA06 AA11 BA38 BA44 BA56 HA82 HA84

Claims (3)

[Claims] 1. A crawler belt for hooking a foot is provided at a longitudinally intermediate portion of a sole portion on which a foot is placed, and a variable portion which sinks by adding weight to a portion from one longitudinal end to an intermediate portion of the sole portion is provided. Footwear characterized by that. 2. The footwear according to claim 1, wherein the variable portion is made of an elastic material. 3. The footwear according to claim 1, wherein the variable portion is made of a flexible material, and a spring member is provided inside the variable portion to urge the variable portion in a thickness direction.