JPS62159601A - Impact absorbing type shoes - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to shock-absorbing shoes, especially sports shoes. # Equipped with a thick cushioned bottom to cushion blows.

Since such a cushioned sole absorbs impact through its elastic deformation, a large elastic repulsion force acts on the user's feet, causing a problem in that the user feels fatigued.

In order to solve this problem, attempts have recently been made to insert a gel material such as silicone gel into the sole of the shoe, thereby absorbing the impact applied to the human foot.

<Problems to be Solved by the Invention> In addition to the problem of poor mobility due to the weight of the gel material in shoes with a gel material interposed in the sole, there are other problems.
If the user suddenly stops, the gel material layer may flop over, and if silicone gel is used as the gel material, the oily silicone material may leach out from the gel material, causing damage to the soles of the human body. There is a problem in reducing the frictional resistance between the two.

In the shoes of the present invention, a gel material sheet material encapsulating microscopic hollow spheres is interposed as a buffer layer in the sole portions that come in contact with human feet, such as the heel and toe portions. .

This makes it a shock-absorbing type.

The micro hollow spheres mentioned above are generally microspheres.
Microballoons, hollow baffles, and synthetic foam materials are usually used.

A silicone gel or the like having a hardness of 50 to 200 is used as the gel substance of the base material for making the above-mentioned gel substance sheet material, and a large number of the above-mentioned hollow micro spheres are mixed into this base material.

The buffer layer made of this gel material sheet material is divided into a number of independent sections, each of which typically has a side length of 5 to 10
It is made into a square of mm.

Kusaku Kawa> The shoes of the present invention contain microscopic hollow spheres and have a gel substance sheet material divided into a large number of independent sections as a buffer layer, so that the movement of the foot inside the shoe is independent.'/: 1%-, each picture is taken separately, and therefore, even if a judicious stop is made, for example, it can prevent the gel material sheet material from deforming as a whole into a chain, thereby preventing the buffer layer from sliding sideways. does not occur.

Embodiment FIG. 1 shows the bottom surface 10 of the shoe of the present invention, and in this embodiment, the buffer layer 20 is provided at the heel 11 and the toe 12. As shown in FIG. 2, the buffer layer 20 is interposed between the heel 11, the toe 12, and the shoe inner sole 13.
3 and the buffer layer 20 is inserted a semi-rigid plate, for example, a receiving plate 30 made of Texon (trade name), which is a material made of paper pulp impregnated with epoxy resin.

The buffer layer 20 conforms to JIS K2530-1976-
(50 g load) Gel substances with a lateral strength of 50 to 200, such as the product name Torre Silicone CY52 (+
--Resilicone A (manufactured by Shikisha Co., Ltd.) is used as a base material, and is made of a gel substance sheet material containing a large number of microscopic hollow spheres.This gel substance sheet material has, for example, one side of It has a configuration in which a large number of independent square sections of about 5 to 10 ff111 are divided into sections.

There are two types of microscopic hollow spheres: inorganic type and organic type. Organic type ones have an outer shell made of synthetic resin and are generally made into right-handed elastic spheres.

Examples of such microscopic hollow spheres include the inorganic product name Phyllite (manufactured by Nippon Phyllite Co., Ltd.) and the organic product product name Expancel (product name Nippon Phyllite Co., Ltd.). -30% by weight or, if the latter is used, from 1 to 4% by weight, is incorporated into the base gel material.

-1- Gel substance sheet material 20' constituting the buffer layer 20
As shown in FIG. 3, a large number of independent sections 21 are formed into sections, and it is desirable that the independent sections 21 are formed sufficiently isolated as shown in FIG.

Such an independent section 21 can be made, for example, by quilting. %Jζ
-er+L++ryoknah-/ It is made by the ut method, high frequency welding method, or l1fl sonic welding method.

When using the above hot press method, as shown in FIG. 4, the gel material 23 containing the micro hollow spheres is covered with an outer covering layer 22 whose inner surface is melted by heat, and the gel material 23 is It is sufficient to perform press molding while subdividing using the heating mold 40. In this way, the independent sections 21 are formed by press molding, and at the same time, the grooves 24 between the independent sections are formed by heat welding '19.

The outer covering layer 22 used in this case can easily be made of a heat-meltable film, but for example, when the outer covering layer 22 is required to meet special conditions in terms of strength, elasticity, etc. teeth,
The outer covering layer 22 may be formed into a multi-layered structure consisting of an inner heat-melting layer and an outer covering layer.

As such a Ω layer, urethane vinyl, foam sheet material, nonwoven fabric, etc. can be considered.

For the above welding process, high frequency welding and ultrasonic welding are used as mentioned above! 19 is done, especially the latter! The advantage is that productivity and welding control are good because the vibrations of the five sound waves are directly concentrated on the welded part and the heat-melting layer can be self-welded by the molecular friction heat of that part.

The above-mentioned gel material sheet material 20' may be made separately for a single shoe, but generally it is made into a long sheet material and then cut into pieces to suit the shoe size. take.

As shown in FIG. 3, this gel material sheet material 20' is usually made to have a large number of island-like independent sections 21 separated by grid-like grooves 24.
1 may be formed into an elongated horizontally striped shape, or may be formed into a circular, elliptical, or polygonal shape.

Next, the inventiveness will be explained with reference to FIG. 5 and subsequent figures.

In the embodiment shown in FIG. 5, the upper surface of the heel 11 of the shoe is formed into a base-like uneven surface 111, and this uneven surface 111 increases the cushioning effect of the buffer layer 20.

In the embodiment shown in FIG. 6, an insole 14 is superimposed on the inner sole 13 of the shoe, and a buffer layer 20 is fixed to the heel and toe portions of the insole 14, respectively, and the buffer layer 20 is an outer cover layer. 22
It is made from a film of soft resin such as urethane.

In the embodiment shown in FIG. 7, a hollow chamber 112 is provided in the heel 11 of the shoe, and ethylene vinyl alcohol (EVA) is added to the hollow chamber 112 in the heel 11 of the shoe.
) is attached to make the hollow chamber 112 an air spring chamber, and the buffer layer 20 is attached to the peripheral edge of the lid 15 to also serve as a sealing material.

1. The above J15 is integrally provided with an insole 151 that is integrated with the sole of the shoe, for example, a semi-rigid plate made of Texon (trade name), and is hollowed out by the pressing force applied by the human foot. The chamber 112 is configured to be compressed.

The embodiment shown in FIG. 8 relates to shoes such as soccer shoes, etc., in which pins are erected, and is intended to prevent the sole from being pushed up due to the pins in this type of shoe.

In this embodiment, the buffer layer 20 is embedded in the toe 12 of the shoe in the shape of a horseshoe, and is positioned above the pin 16, as shown in FIG.

In this embodiment, as shown in FIG. 9, in the buffer layer 20, the lowermost layer on the pin 16 side is formed of a hard plate 25 made of hard resin, for example, polyvinyl chloride resin, and the upper surface thereof is formed of a semi-hard plate 25. 26 is polymerized, and a buffer layer 20 and a semi-rigid plate 27 are sequentially stacked on top of this semi-rigid plate 26. It is distributed and transmitted to the buffer layer 20 by the plate 26.

In the embodiment shown in FIG. 10, the heel 11 of the shoe is connected to the bottom surface 1 of the shoe body.
It is made so that it can be separated from 0, and a semi-rigid pedestal 17 made of Texon (trade name) is fixed to this bottom surface 10,
The heel 11 is attached to the pedestal 17, and the buffer layer 20 is interposed between the pedestal 17 and the heel 11.

For this purpose, the pedestal 17 has an engaging protrusion 171 with a large diameter, while the heel 11 is provided with a locking hole 113 that engages the engaging protrusion 171 so as to be raised.

In this example, 1. The buffer layer 20 has a thickness of 0.5 to 21
The silicone gel may be made by impregnating a felt material with silicone gel, and the penetration degree of the silicone gel may be as long as it can be impregnated with the silicone gel.

In the embodiment shown in FIG. 11, a block 114 is made so that a part of the heel 11 can be fitted and fixed to the heel 11, and a cavity 115 is formed in the heel 11 into which this block 114 is fitted. A buffer layer 20 is interposed between the block 114 and the inner bottom of the cavity, and this block 114 is fixed to the heel 11 by forced press-fitting means, adhesive, or the like.

In the above embodiment, the independent section 21 of the buffer layer 20
As shown in FIG. 11, it is preferable to design the block 114 so that it fits into the holes 114a formed on the inner surface of the block 114, but in some cases, the inner surface of the block 114 formed in a planar shape may ! f#? The layer 20 may be designed to press against the bottom of the cavity.

/ 8 1ffl s-6mo -Ill ＼Uninvented shoes are made of a gel substance sheet containing minute hollow spheres (・
Since the material is used as the =INi layer, the weight j1''L of the buffer layer 2,0 can be reduced, and the minute hollow spheres mentioned above are inexpensive, so the price of the buffer layer 20 can be reduced depending on the city where they are mixed into the gel material. It has the effect of reducing the buffer layer 20.
is subdivided into a large number of independent sections 21, so each section 2
1 is easily deformed and receives external impact in a dispersed manner.In addition, since each section 21 is independent, it has the effect of creating a bar that prevents sideslip phenomenon.

[Brief explanation of drawings]

Fig. 1 is a bottom view showing the sole of the shock-absorbing shoe of the present invention, Fig. 2 is a sectional view of the heel portion of the shoe, and Fig. 3 is a gel material sheet material used for the cushioning layer of the shoe. FIG. 4 is an explanatory view showing one example of the method for manufacturing the gel material sheet material, and FIGS. 5 to 11 are cross-sections of main parts showing other embodiments of the shoe of the present invention. It is a diagram. In the figure, 10 indicates the bottom surface of the shoe, 11 indicates the heel, 12 indicates the toe, and 20 indicates the buffer layer. Patent applicant: Kyuhitsuku Engineering Co., Ltd. Figure 1 Figure 2 Figure 8

Claims (2)

[Claims] (1) A buffer layer is polymerized on the required part of the sole surface, the buffer layer is made of a gel material sheet material divided into a number of independent sections, and the gel material sheet material is a gel material with a penetration degree of about 50 to 200. Shock-absorbing shoes that are made with microscopic hollow spheres mixed inside. (2) The shock-absorbing shoe according to claim 1, wherein the gel material is silicone gel.