JPH11221104A - Shock absorbing material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a shock absorbing material which is installed in the heel part, etc., of a running shoe, whereby it is possible to prevent the user from fatigue and enhance his/her motion ability. SOLUTION: Composite reinforcements consisting of a combination of an undulate meshing 3 consisting of thin yarns 5A of synthetic resin fibers to continue in one direction of the undulate form in such a way that the wave tops 7 are confronting the surface 6 to which impact is applied and a flat form meshing 4 elongating in the waveform continuing direction in intersecting the middle about the wave height of the undulate meshing 3 and made of thin yarns 5B of synthetic resin fibers are embedded internally in an impact absorbing layer 2 made of a gel-form substance.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shock-absorbing material widely used for sports equipment such as sports shoes, daily life equipment, and machinery.

[0002]

2. Description of the Related Art Sports shoes and jogging shoes are made of a shock-absorbing material in which a gel-like substance, an air cushion, or the like is provided in a urethane resin, or a synthetic material, in order to improve athletic functions during use and to reduce wearer's fatigue. In some cases, a resin plate is provided inside the heel to absorb landing impact.

[0003]

Among the above-mentioned conventional shock-absorbing materials made of a gel-like material, the gel-like material itself has some form of elasticity and hardness and has a jelly-like form. When worn on the heel of a sports shoe or a jogging shoe, the shoe is compressed and deformed by a landing impact of the user to have an impact absorbing effect. However, since the restoration from the elastic compression is slow, it takes a long time, and furthermore, there is almost no occurrence of the rebound force from the compression deformation, so in the case of running jogging with a fast landing impact cycle, the compression state is maintained. In some cases, the shock absorption function is lacking. Further, since there is no restoring repulsive force after the compression deformation, the effect of improving the motor function by mounting the shock absorbing material is small.

On the other hand, sports shoes and the like using the above-mentioned synthetic resin plate as a shock-absorbing material have excellent repulsion based on elastic compression due to landing impact, but have a small amount of compressive deformation and thus have a poor shock absorbing effect. It is difficult to achieve both resilience and shock absorption. In addition, "set" due to repetitive load is likely to occur, so that the service life is short and lacks practicality. The present invention provides an impact absorbing material that solves the above-mentioned disadvantages of the prior art.

[0005]

Means for Solving the Problems The shock absorbing material of the present invention which solves the above technical problem is that "a shock absorbing layer made of a flexible substance has a wave-shaped net having a vertically wavy shape in a direction in which an impact force is applied. , A structure in which composite muscles extending in the continuous direction of the waveform of the corrugated net and combining flat nets intersecting at an intermediate wave height or a bottom portion of the corrugated net are embedded and embedded. Structure of shock absorber

[0006] In a layer of a shock absorbing layer made of a flexible material, a wave-like net having a vertical waveform in the direction in which an impact is applied, and a middle wave height or a wave bottom of the wave-like wave extending in a continuous direction of the wave of the wave-like net. The structure has a structure in which a composite bar composed of a combination of tension yarns that are connected to each other at cross positions and that are arranged side by side with fine pitches is embedded therein. "

That is, the shock absorbing material of the present invention disperses the impact force by disposing the composite muscle in the flexible shock absorbing layer, and at the same time, dissociates the rigidity and repulsion force of the composite muscle. The shock absorbing layer that forms the main part is made of gel-like substance, foamed resin, rubber material and embedded in it. Corrugated mesh
The flat mesh state / tensile yarn is formed by synthetic resin fiber yarn or metal thin yarn, or a hybrid yarn of both of them, and a knitting yarn thereof.

[0008]

The shock-absorbing material of the present invention having the above-mentioned structure has a flexible form that is easily deformed by an external force together with a gel-like substance or the like embedded in the crest portion of the internally provided corrugated network.
The wavy middle and wavy bottom portions of the wavy net have a quasi-rigid form in which the wavy deformation is restricted by the presence of the flat net / tensile yarn.

[0009] The impact force generated on the surface is transmitted to the flexible shape portion to effectively absorb the impact, and at the same time, the impact is dispersed and transmitted to the impact absorbing layer by the corrugated net existing there. Therefore, strong local impact is effectively absorbed over a wide area. Then, since the lower half portion of the corrugated network receiving the transmission is in a semi-rigid form, it rapidly rebounds and restores the elastic deformation of the flexible form portion, and its restoring force, that is, shock absorption As a result, a repulsive force is generated after absorbing the shock, and the shock absorbing material quickly returns to its original shape. And
Since the mechanism of shock absorption and repulsion is as described above, the durability against repeated impacts is good, and the life can be maintained long.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The shock absorbing material of the present invention is implemented as in the following examples.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First, a first embodiment of the above-mentioned network combination internal structure will be described with reference to FIG. That is, the shock absorbing material 1 of this embodiment is mainly composed of a shock absorbing layer 2 having a thickness T made of a gel-like substance of silicon gel, and a resin thin thread 5A is formed in the shock absorbing layer 2. And a flat net-like shape formed by braiding resinous fine yarn 5B in a grid shape and forming a flat plate shape. And the flat net 4 crosses the midpoint of the wave height H of the corrugated net 3 and is parallel to the surface 6. It is embedded inside.

The shock absorber 1 of the embodiment shown in FIG.
), Cut into an appropriate size, and set at the heel portion 12 of the running shoe 10 or the ball collision position 13 of the baseball glove 11 for use. The specifications of this embodiment are as follows. The corrugated net 3 is “a braided 0.6 mm diameter polypropylene yarn, wave height H = 4 mm, wave pitch P = 22 mm”, and the flat mesh 4 is “ A lattice braid of a weft of 0.4 mm diameter polypropylene yarn and a warp of 0.2 mm diameter polyethylene yarn, and the thickness T of the shock absorbing layer 2 is approximately 10
It is worn out.

Next, referring to FIG. 2, another embodiment of the shock absorbing material 1 having a net structure combined internal structure will be described. That is, FIG. 2 shows a structure in which the same corrugated net 3 and flat net 4 as in the embodiment of FIG. 1 are combined and provided internally. The shock absorbing layer 2 is a urethane foam resin, and the corrugated net 3 is The upper and lower pairs are symmetrically present on both sides of the flat net 4. The shock absorbing material 1 of this FIG.
Any of the back can be set as a shock receiving surface,
It can be used to absorb large impact forces. Figure 1
The second embodiment exerts the above-mentioned effects, and when set on the heel portion 12 of the above-mentioned shoe, it effectively absorbs the landing impact of the user and quickly rebounds and restores, thereby preventing fatigue and exercise of the wearer. Function improvement can be promoted. And
The absorption of the absorption layer 2 over a wide area due to the above-described impact transmission results
There is an advantage that there is no discomfort due to a local impact at the time of landing and the wearing feeling is improved.

Next, with reference to FIG. 3, an embodiment of the shock absorbing material 1 of the present invention having a structure including a mesh body and a tension yarn will be described. That is, in the case where the corrugated net 3 similar to that of the embodiment shown in FIGS. 1 and 2 is internally provided, a tension thread 8 instead of the flat net 4 of the above embodiment is installed in combination with the corrugated net 3. I have.

More specifically, the tension yarns 8 are set at the middle of the wave height or at the wave bottom of the corrugated net 3 and extend straight in the continuation direction of the waveform. It is connected to the fine thread 5A of the net-like body 3 to be integrated. In the embodiment shown in FIG. 3, the tension yarn 8 is connected to the middle or bottom portion of the corrugated net 3 to prevent deformation of the lower half portion of the corrugated body, thereby improving rigidity.
The same operational effects as those of the embodiment of FIG. 2 exist.

The shock absorbing material 1 of the embodiment is formed, for example, by the following method. That is, the corrugated net 3
The net to be formed is previously formed into "a flat net formed by braiding all or a part of one of the braided fibers crossed with a heat-shrinkable resin fiber", and a flat net 4 and a tension yarn 8 group to be combined And polymerization set, then, by heating the set to shrink the heat-shrinkable resin fibers,
The flat net is formed into a corrugated net 3 by a known molding method.

The impact-absorbing material 1 of the present invention is not limited to the above-described embodiment. The fine yarn 5 is not limited to various synthetic resin fine yarns including drawn polyacetal / nylon, but also includes such synthetic resin yarns. In addition to the above-mentioned sports equipment, the impact of all articles such as machinery and equipment can be widely used. Used for power absorption protection.

[0018]

As described above, when the shock absorbing material of the present invention is attached to a shock receiving portion of sports equipment, the shock absorbing material is effectively absorbed and alleviated, and at the same time, is quickly rebounded and restored to generate a repulsive force. It is possible to provide sports equipment which can prevent fatigue of the user and further promote exercise function and has a longer usable life, and which has a particularly improved performance as compared with the conventional one. And it can be set on various articles such as general machinery and equipment, so that damage to the equipment due to harmful impact can be effectively prevented.

[Brief description of the drawings]

FIG. 1 is a perspective view of a first embodiment of a shock absorbing material having a built-in netting structure according to the present invention.

FIG. 2 is a side view of another embodiment of the shock absorbing material having a built-in netting structure according to the present invention.

FIG. 3 is a perspective view of one embodiment of a shock absorbing material having a net / tensile yarn combination structure of the present invention.

FIG. 4 is a perspective view illustrating the use of the shock absorbing material of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Shock absorbing material 2 Shock absorbing layer 3 Corrugated net 4 Flat net 5A ・ 5B Fine thread 6 Surface 7 Wave crest 8 Tension thread

Claims (2)

[Claims] 1. A wave-shaped net having a vertical waveform in a direction in which an impact force is applied, and a wave-shaped net extending in a continuous direction of the wave-shaped net in a layer of an impact-absorbing layer made of a flexible material. A shock absorbing material characterized by a structure in which a composite muscle combining flat nets intersecting at an intermediate wave height or a wave bottom is embedded. 2. A shock absorbing layer made of a flexible substance, a wave-like net having a vertical waveform in a direction in which an impact is applied, and a wave height middle or a wave extending in a continuous direction of the waveform of the wave-like net. A shock absorbing material characterized by a structure in which a composite muscle composed of a combination of tension yarns that are connected to cross at the bottom portion and that are arranged side by side with fine pitches is embedded.