JPS6038892Y2 - insole of shoes - Google Patents

Description

[Detailed description of the invention] This invention relates to improving the insole of shoes suitable for jogging, other sports, and commuting to school.The purpose of this invention is to improve the stability of the inside of the heel in particular, and reduce the impact of landing on the heel periphery. The aim is to reduce fatigue without impairing the feel of the foot by dispersing the moisture in the foot and providing cushioning properties in the center of the heel.

In sports shoes used for jogging, etc., a midsole is generally used for the purpose of alleviating the impact of landing, and the midsole is made of an elastic foam such as urethane foam. On the other hand, in order to improve running stability, it is common to use a hard sheet for the insole, and in some cases, the heel part is made of a foam material with relatively poor elasticity. provided.

However, if an elastic foam material is used for the midsole, it has good shock absorption properties when landing, but the load applied to the inside of the heel when landing compresses the inside of the heel and causes it to tilt inward, impairing the stability of the body. Failure to do so may result in a fall or sprain.

On the other hand, although foam with relatively poor elasticity is used in the heel area, although it may provide heel stability, it has poor shock absorption and cushioning properties, making it uncomfortable to wear and not suitable for long runs. It has the disadvantage of being extremely tiring.

Therefore, in order to improve this drawback, this invention has a reinforcing plate made of hard synthetic resin that has a flat horseshoe shape with a leg on one side, and is fixed to the heel of the insole. The purpose of the present invention is to provide an insole for a shoe that prevents excessive inclination, improves landing stability, and at the same time disperses impact applied to the inside of the heel. Examples thereof will be described with reference to the drawings.

That is, a reinforcing plate A is formed of hard synthetic resin in the shape of a plane horseshoe and has one or several legs 4 integrally provided on the lower surface of its inner side 3 with a height approximately equivalent to the thickness of the heel 1. A is an insole of a shoe characterized in that A is fixed to the heel of an insole B made of elastic foam.

Note that FIG. 1 shows the main part of an embodiment in which one leg part 4 is formed, and FIG. 2 shows the main part of an embodiment in which two leg parts 4 are formed.

Since this invention is configured as described above, the heel 1 of the insole
A planar horseshoe-shaped reinforcing plate A is located on the periphery of the upper surface, and the leg portion 4
is buried in the bottom of the joint.

In this way, the drawbacks seen in the past can be improved,
Before going into detail about its effects, if we look at the general running conditions, at the beginning of landing, you land on the outside of your heel;
The weight instantly shifts to the inside of the heel, with the maximum load being applied to the inside of the heel, then moves from the inside of the heel, through the center of the sole, to the outside, and then kicks off near the big toe, repeating the weight-bearing path. It is something that you drive with.

Therefore, when running while wearing shoes using the insole of this invention, a reinforcing plate A made of hard synthetic resin and having a planar horseshoe shape is located around the heel and has a thickness approximately equivalent to that of the heel 1. height leg 4
is buried inside the heel, so even if the maximum load is applied to the inside of the heel, the support of the leg 4 prevents the inside of the heel from tilting inward excessively and prevents the body from becoming unstable, preventing falls and sprains. The number of people who do this will be significantly reduced.

In addition, the load applied to the leg 4 and the upward reaction to the upper surface of the heel 1 due to the impact of landing are stopped in a wide range by the reinforcing plate A located in the shape of a horseshoe on the upper surface of the heel 1, and the shock applied to the heel of the foot is minimized. Moreover, it has the effect of preventing the heel 1 from sinking suddenly due to the landing load, and also has the effect of dispersing and alleviating the landing impact over the entire length of the reinforcing plate A. Since the majority of the shoes are made of elastic foam, they have cushioning properties and fit well against the heel of the foot, allowing you to run without sacrificing the feel of the sole of your foot, reducing fatigue.

Thus, the shoes using the insole of this invention have high stability in the heel area and have an excellent effect on cushioning the landing impact, and are useful for jogging, other sports, and school shoes. be.

[Brief explanation of the drawing]

Embodiment 2 of this invention is shown, and FIGS. 1 and 2 are perspective views of the main parts, FIG. 3 is a sectional view taken along the line a-a of FIG. 1, and FIG.
This figure is a sectional view of a shoe using the insole of the embodiment shown in FIG. 1. 1...heel, 2...outer side, 3...
...Inner side, 4...Legs, A...Hard synthetic resin reinforcing plate, B...Bottom of the stand.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A reinforcing plate having a planar horseshoe shape with legs provided on the lower surface of its inner side is formed of hard synthetic resin, and the reinforcing plate is fixed to the heel of the insole made of elastic foam. The insole of the shoe is characterized by 2. The insole for shoes according to claim 1, wherein the leg portion has one or several waists with a height corresponding to the thickness of the heel.