JPH0334084Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to shoes, and in particular, to shoes that improve the elasticity of the sole of the shoe, and which have excellent durability and a health-promoting effect. It is.

[Conventional technology]

In various types of shoes, it is necessary to reduce the impact that is applied to the feet when walking or running.

For this reason, conventional methods have been used, such as constructing the sole of a shoe using a flexible material such as rubber or leather, and providing a sponge or a sealed air chamber inside the sole. That is, the elasticity of the sponge or air was used to reduce the impact on the feet.

[Problem that the invention attempts to solve]

However, when using a sponge as mentioned above, the sponge constantly expands and contracts when shoes are worn, causing fatigue, and its durability is a problem. There was a drawback that the desired elastic properties could not be obtained.

In addition, when providing a sealed air chamber as described above, it takes time to manufacture it to maintain airtightness, and since there is a limit to the elasticity of air, it is necessary to sufficiently reduce the impact on the feet. Furthermore, there was a limit to the durability of the airtight chamber.

The present invention eliminates the above-mentioned drawbacks of the prior art, and aims to provide a shoe that has sufficient elastic properties in the sole, has excellent durability, and has a health-promoting effect.

[Means for solving problems]

In order to solve the above-mentioned problems, the present invention has a structure in which permanent magnets whose opposing surfaces have the same polarity are placed one above the other at appropriate intervals inside a flexible shoe sole.

[Effect]

According to the present invention, since the sole of the shoe is flexible, it tends to collapse in the vertical direction when walking or running. Therefore, the distance between the permanent magnets provided above and below the shoe sole at appropriate intervals tends to decrease. However, in this invention, the opposing surfaces of the permanent magnets have the same polarity, so they repel each other, and the repulsive force is inversely proportional to the distance between the permanent magnets, so the impact force when walking or running is sufficient. This will be relaxed. Note that, since the above-mentioned repulsive force is determined by the magnetic flux density of the permanent magnet, it is possible to obtain the required elasticity characteristics by appropriately selecting the characteristics of the permanent magnet.

In addition, as mentioned above, it utilizes the repulsive force of a permanent magnet and does not use sponges, etc. as in the past, so its elastic properties do not change even after long-term use, making it highly durable. It is.

Furthermore, since the present invention has a permanent magnet inside the sole, it improves blood circulation in the feet and is useful for promoting health, as is generally known.

〔Example〕

In the drawings, 1 is a shoe, and 2 is a flexible sole. Permanent magnets 3, 3a whose opposing surfaces have the same polarity are provided above and below with an appropriate gap in the inside of the sole 2.

In the case of the embodiment shown in FIGS. 1 and 2, the sole 2 is constructed in advance by gluing or otherwise dividing into an upper part 4 and a lower part 5, and the upper part 4 and the lower part 5 are respectively attached with the permanent Recess 4 into which magnets 3 and 3a fit
a and 5a are provided on the heel side and the toe side, and the recess 4
Thin plate-like permanent magnets 3 and 3a are embedded and bonded to a and 5a, respectively. Moreover, the opposing surfaces of the permanent magnets 3 and 3a are made into S poles.

In addition, in the case of this embodiment, the permanent magnets 3, 3
For a, it is desirable to use a flexible magnet such as a rubber-based or resin-based magnet in order to prevent cracking. Further, although the permanent magnets 3 and 3a are provided on the heel side and the toe side, they may be provided only on the heel side or may be provided on other parts as well.

According to the present invention having the above structure, since the sole 2 has flexibility, it tends to collapse in the vertical direction when walking or running. Therefore, the distance between the permanent magnets 3, 3a provided above and below the shoe sole 2 at an appropriate interval tends to be reduced.

However, in the present invention, since the opposing surfaces of the permanent magnets 3 and 3a are of the same polarity, they repel each other and the repulsive force is inversely proportional to the distance between the permanent magnets 3 and 3a, so that the above-mentioned walking or running The impact force caused by this is sufficiently alleviated. Incidentally, since the repulsive force is determined by the magnetic flux density of the permanent magnets 3, 3a, the desired elastic characteristics can be obtained by appropriately selecting the characteristics of the permanent magnets 3, 3a.

In addition, as mentioned above, since the repulsive force of the permanent magnets 3 and 3a is used, and sponges etc. are not used as in the past, the elastic properties do not change even after long-term use, making it highly durable. It is something that exists.

Furthermore, since the shoe sole 2 has permanent magnets 3, 3a inside, it improves blood circulation in the feet and is useful for promoting health.

FIGS. 3 and 4 show other embodiments. This embodiment differs from the embodiments shown in FIGS. 1 and 2 above in that the permanent magnets 3, 3a are divided into strips. However, it may be divided into other shapes. Therefore, in this embodiment, there is no need to take the trouble to prepare a single permanent magnet of an appropriate shape, and a ready-made permanent magnet can be used.

Still other embodiments are shown in FIGS. 5 and 6. This embodiment differs from the above two embodiments in that a plurality of small pieces of permanent magnets are used as the permanent magnets 3 and 3a, and they are spaced apart from each other. Therefore, even if a non-flexible magnet such as a metal magnet is used instead of a flexible magnet as a small piece of permanent magnet, there is no risk of damage such as cracking. By appropriately changing the magnetic flux density of the permanent magnets of each small piece, or by appropriately changing the arrangement density of the permanent magnets of each small piece, the magnitude of the impact force transmitted to each part of the sole 2 can be adjusted. It is possible to obtain elastic properties with a high elasticity.

[Effects of the invention] According to the invention, it is possible to obtain sufficient elastic properties in the sole of the shoe, and it is also excellent in durability, and moreover, it is possible to obtain a health-promoting effect.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; FIG. 1 is a longitudinal sectional view, FIG. 2 is a sectional view taken along the line A-A, FIG. 3 is a longitudinal sectional view showing another embodiment, and FIG. The figure is a sectional view taken along line B--B, FIG. 5 is a longitudinal sectional view showing still another embodiment, and FIG. 6 is a sectional view taken along line C--C. 1...Shoes, 2...Sole, 3, 3a...Permanent magnet.

Claims (1)

[Scope of utility model registration request] A shoe characterized by having permanent magnets with opposing surfaces of the same polarity arranged above and below at appropriate intervals inside a flexible sole.