JP2002017938A - Leg guard - Google Patents

Abstract

PROBLEM TO BE SOLVED: To upgrade buffering performance of leg guards used for sports such as soccer and keep skin highly hygienic by achieving favorable gas and moisture permeabilities of a skin surface. SOLUTION: An elastomer continuous filament with the diameter of 0.2 mm or more is formed in the shape of a random loop-based spring mat and fused at least at some parts of contact points between loops thereof to make a cushion member on the skin side. The work thus obtained is laminated and bonded on a hard plate.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a shin pad for use in sports such as soccer.

[0002]

2. Description of the Related Art Conventional shin socks for soccer use a rigid molded product such as polyethylene or polypropylene on the outside (sock side) and an elastic foam such as polyurethane or EVA (polyethylene-vinyl acetate copolymer) on the inside. (Skin side) and bonded together.

[0003]

The above-mentioned conventional shin pad can prevent pain and damage to the shin by the action of a hard outer shell and an elastic cushion against a strong impact.
The skin surface of the shin has poor air permeability and poor moisture permeability, and the large amount of sweat and dust generated causes the skin surface to be constantly sticky and stuffy, resulting in a bad touch. There is, therefore, a particular need to improve the inner surface of the shin pad (skin side).

[0004] In response to this demand, even if it is attempted to improve the air permeability and moisture permeability between the inner surface of the shin pad and the skin, the rubber plate, foam, and fiber aggregate conventionally known as cushioning material have no gap. It is clear that there is no or very little air and moisture distribution is poor and that the goal cannot be achieved at all, and that a change in mind is necessary.

[0005]

SUMMARY OF THE INVENTION The present invention has a thickness of 0.2 m.
m or more continuous elastomeric filaments are formed into a random loop spring mat shape, and at least a part of the contact point of each loop is fused to the inside (skin side) of the cushion material, and this and the hard plate are placed outside. The two are laminated and bonded to form a shin pad.

In this shin pad, the gap between the hard plate and the skin is much larger than that of the fiber mat or the foam, so that the air permeability and the moisture permeability are very good, and the cushioning property is good. Due to the expansion and contraction based on the elasticity, the air in the gap is constantly circulated by the pump action, so that the skin does not get stuffy or eczema at all.

FIG. 1 shows an example of a drawing in which an elastomer continuous wire having a thickness of 0.2 mm or more used in the present invention is formed into a random loop spring shape (hereinafter abbreviated as a spring mat). FIG. 2 is an enlarged partial perspective view of a spring mat, in which 1 is an elastomer continuous filament, and the filament 1 is meandering and forms a random loop, and at least a part of the place where the filaments 1 contact each other is It is fused and contributes to great rebound resilience. The filament 1 is usually circular in cross section, but a deformed filament such as a star may be used.

As is apparent from FIG. 1, the spring mat has a sufficient gap and space, is light in weight, easily circulates air and moisture, does not generate water droplets and sweat drops in the gap, and has an impact. And it has a strong elastic resistance to compression and plays a suitable role as a spring.

In the shin rest of the present invention, the maximum acceleration is 1800 m / sec ² or less and the bulk density of the spring mat 3 is 50 to 250 kg according to a test method according to JIS Z 0235 which shows a cushioning property when the shin rest is applied. / M ³ and a thickness of 2 to 10 mm are preferable for use. That is, in this range, the ventilation and moisture permeability are good, and the buffering property is excellent.

[0010] In the case of the shin pad according to the present invention, the loop-shaped spring mat structure as shown in FIG. (Skin surface) woven fabric, knitted fabric,
It is preferable that a nonwoven fabric or the like be laminated and fixed to alleviate uneven pressure and equalize the pressure.

The elastomeric continuous filaments constituting the loop-shaped spring mat include polyester-based block copolymers such as polyester-polyether-based and polyester-polyester-based, and polyamide-based block copolymers such as polyamide-polyether-based. There are urethane-based block copolymers such as polyester / urethane and polyether / urethane, and styrene-based block copolymers such as styrene / diene, etc. In this respect, a polyester block copolymer is preferred.

The hard plate used for the shin pad surface may be either metal or plastic. In short, a light-weight material that does not break or deform due to impact is preferable. That is, a plurality of ventilation holes are made to penetrate the hard plate to improve the flow of moisture, and an elastic band provided with a fixing means such as a hook-and-loop fastener is attached to the hard plate to fix it to the shin.

Next, the shin pad according to the present invention will be described with reference to FIG. FIG. 2 is a perspective view of a shin pad according to the present invention, in which a hard plate 2 (typically 2 to 5 mm thick) is formed into a curved surface so as to easily follow the shin, and a plurality of ventilation holes 4 are perforated. I have. A spring-like mat 3 is provided on the inner surface of the hard plate 2.
(Thickness: 2 to 10 mm) are laminated and fixed by an adhesive, fusion or the like, and a cloth 7 is laminated and fixed on the other surface of the spring-shaped mat 3. The hard plate 2 is provided with a slit 5 for attaching an elastic band 6 for fixing the shin pad to the shin.

Next, the cushioning property of the shin pad shown in FIG. 2 was determined by measuring the maximum acceleration according to the JIS Z 0235 method. However, in the shin pad, the thickness of the hard plate 2 (made of polyethylene) is 2 mm, the thickness of the spring-like mat is 5 mm, and the thickness of the linear member 1 (made of polyester / polyether block copolymer) that forms the mat is 0. 4mm
(Circular section), the mat has a bulk density of 220 kg / m ³ , and the cloth 7 is made of a thin polyester nonwoven fabric.

For comparison, the polyester
Instead of a polyether block copolymer mat, use the same method of cushioning with a mat of the same structure made of an ethylene / vinyl acetate copolymer (the thickness of the filament, the bulk density and thickness of the mat are almost the same). The properties were measured.

As a result, the maximum acceleration was 1696 m / cm for the case of the polyester / polyether block copolymer.
Sec ^2, in the case of ethylene-vinyl acetate copolymer manufactured by 190
A 3m / sec ^2, in the case of the shin against the acceleration is small, it can be seen that buffering is obtained.

[0017]

Since the shin pad according to the present invention has the above-described structure, it is lightweight, allows easy flow of air and moisture in contact with the shin, and keeps moisture in the basket. Therefore, it does not cause skin diseases such as eczema. In addition, it has an excellent shock-absorbing property and less burden on bones and muscles.

Further, the shin pad of the present invention, particularly the shin pad using a loop spring made of a polyester-based block copolymer, is capable of recycling the elastic body of the loop spring, has no pollution, and is also a breakthrough in this respect. It is typical.

[Brief description of the drawings]

FIG. 1 is a partial perspective view of a spring-like mat used in the present invention.

FIG. 2 is a perspective view of a shin pad according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Elastomer continuous filament 2 Hard plate 3 Spring mat 4 Vent 5 Slit 6 Elastic band 7 Cloth

Claims (3)

[Claims] An elastomer continuous wire having a thickness of 0.2 mm or more is formed into a random loop spring mat.
Using a cushion material in which at least a part of the contact points of each loop is fused on the inside (skin side) and using a hard plate on the outside,
A shin pad characterized by laminating and bonding both. 2. The skin side surface of the cushioning material is further breathable,
The shin pad according to claim 1, wherein a cloth having good moisture permeability is laminated and bonded. 3. A maximum acceleration test according to the JIS Z 0235 showing the cushioning spring mat of the cushion material is 1800 m / sec ² or less, 50 to the bulk density
Greaves of claim 1 or 2 wherein the 250 kg / ^{m 3.}