JPH0534681Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field This invention is a protector for gymnastics practice, more specifically, it is used to protect the heels and ankles of practitioners when practicing on horizontal bars, parallel bars, or uneven bars in gymnastics. Regarding the protector used for.

Conventional techniques and problems In recent years, in order to get high scores in competitions on horizontal bars, parallel bars, and uneven parallel bars, it is necessary to perform a technique in which both hands are momentarily removed from the bar, generally known as a "dare technique."
It requires advanced techniques called ``. However, in the process of practicing to master such advanced techniques, players sometimes fail and hit their lower legs, especially their heels and ankles, against the bar. For example, in the technique called ``Tkachiev'', named after its founder, from a forward swing pull-up on a horizontal bar or uneven bars, when the body reaches the highest position, the hands are released and the body falls. When performing a technique in which you open your legs wide while rotating as if raising your upper body, jumping over a horizontal bar or high bar, and then hanging onto the horizontal bar or high bar again, you are particularly likely to strain your heels, ankles, Achilles tendons, etc. of both legs. You can hit the bars hard and hurt them. For this purpose, in the past, bars such as horizontal bars were covered with elastic foamed synthetic resin sheets with a thickness of 5 to 6 cm, generally called bar pads. In addition to absorbing the impact and preventing injuries, devices have been devised to remove the fear of practitioners and encourage them to practice as planned.

However, the part covered with such bar pads naturally becomes thicker than the bar itself, which not only has a negative psychological impact on the practitioner, but is also actually inappropriate as a grip position. Because of this, it is not possible to cover the entire bar with bar pads. To achieve this, the bar is left exposed at the grip position, and the rest of the body is covered with bar pads, but the grip position differs depending on the type of technique, so practice with other techniques as well. In some cases, bar pads can still get in the way, making it unsuitable for so-called continuous practice, which involves practicing from the beginning to the final landing of a series of movements.

In addition, since the height of the high bars such as iron bars and uneven parallel bars is quite high, attaching and detaching the bar pads itself is a little troublesome.

This device was devised in view of these problems, and it not only prevents the heels and ankles from hurting when they hit the bar when practicing on the horizontal bar, but also makes it easier to attach them to the ankles. It is an object of the present invention to provide a protector for gymnastics practice that does not make the wearer feel uncomfortable and does not interfere with the practice of any technique.

Means for Solving the Problems This invention, for the above purpose, covers the heel, malleolus and Achilles tendon with a protector body made of a material capable of absorbing impact at the time of hitting, and
A tightening member for attaching the protector body to the ankle is provided on the protector body so that it can be easily attached to and detached from the ankle.

Therefore, in this invention, the protector body 1 is
A lateral surrounding part 2 having a height reaching from the heel to the upper part of the Achilles tendon and having a substantially U-shaped cross section and covering the rear side circumferential surface of the foot from the Achilles tendon to both the medial and lateral malleolus.
and a heel bottom part 3 which is connected to the lower end of the side circumference surrounding part 2 and positioned on the underside of the heel, and the side circumference surrounding part 2 and the heel bottom part 3 are highly shock absorbing. A protector for mechanical gymnastics practice, which is formed from The main points are as follows.

Embodiments Hereinafter, this invention will be explained based on illustrated embodiments.

Reference numeral 1 denotes a protector main body, which has a height that reaches from the heel to the upper part of the Achilles tendon, and includes a lateral surrounding part 2 having a substantially U-shaped cross section and covering the rear side peripheral surface of the foot from the Achilles tendon to both the medial and lateral malleolus. , this side surrounding portion 2
It consists of a horizontal heel bottom part 3 that is connected to the lower end and is located on the underside of the heel and covers the underside of the heel. It is formed from an elastic body 10 wrapped in a flexible and tough cover sheet 5.

The cushion sheet 4 has a polyurethane resin foam layer 6 with a thickness of about 10 mm and an ethylene-vinyl acetate copolymer (EVA) resin foam layer 7 with a thickness of about 10 mm on one side. A layered structure is used, and when the protector P is attached, the polyurethane resin foam layer 6 is placed on the inside, and the ethylene-
A vinyl acetate copolymer (EVA) resin foam layer 7 is disposed within the elastic body 16 on the outside. The reason for this arrangement is that it harmoniously satisfies both rebound resilience and shock absorption properties, effectively absorbing the impact upon impact, and reducing the feeling of pressure when worn, ensuring good wearability. It's about getting. From this point of view, it is desirable that the content of vinyl acetate in the EVA resin foam layer 7 is about 25 to 28%, and the rebound modulus is 45 to 65%, especially
53-56% is preferred. Further, the rebound modulus of the polyurethane resin foam layer 6 is desirably about 35 to 55%, particularly preferably 44 to 46%.

In addition, the cover sheet 5 that encloses the cushion sheet 4 is made of pigskin in consideration of its good contact with the skin and the ability to fit around the ankle.

This protector main body 1 has a lower end portion of a side surrounding portion 2 which is formed by bending left and right end portions of a heel sole portion 3 protruding from the center of the lower end of a rectangular side surrounding portion 2 into a U-shape in the unfolded state. By connecting to both ends of the heel sole 3, the heel bottom 3 can be maintained in a horizontal state with respect to the substantially upright side circumferential surrounding part 2.
In addition, among the left and right edges of the tip of the heel sole 3, in the case of a protector worn on the right foot, the left edge of the tip,
In the case of a protector to be worn on the left foot, the right side edge of the tip is connected to the side circumferential surrounding part 2 via each flexible connecting piece 8, so that it can be worn stably to accommodate the irregular shape of the left and right feet. is being done.

Reference numeral 9 denotes a first member which extends over the left and right edges of the side surrounding portion 2 and is used to attach the protector main body 1 to the heel/ankle.
Belt 9a and a pair of left and right second belts 9b, 9b
It is a tightening member consisting of. Said first belt 9a
In this case, a surface fastener 11 whose one end is attached to the upper end of the side edge of the side edge enveloping part 2 and fixed to the rear surface of the tip part, and a surface fastener 12 fixed to the outer surface of the main body part 2 of the protector main body. , so that they can be connected to each other in a freely dissociable manner. Also the second
In the belts 9b, 9b, one end of each belt 9b is attached to the lower end of either the left or right side edges of the side circumferential surrounding portion 2, and a hook-and-loop fastener 13 is fixed to the front surface of one belt, and a hook and loop fastener 13 is fixed to the front surface of one belt, and A hook-and-loop fastener 14 fixed to the rear surface of the belt can be releasably connected to each other.

Therefore, the protector P having the above structure is attached to the ankle by placing the heel sole part 3 against the lower surface of the heel and covering the heel, ankle, and Achilles tendon with the lateral surrounding part 2.
The first belt 9a and the second belts 9b, 9b as the tightening member 9 are wrapped around the ankle and straddled from one side end to the other side end of the lateral surrounding part 2, and the hook-and-loop fasteners 11, 12, 13 are attached. , 14, and FIG. 5 shows the attached state.

In this embodiment, the cushion sheet 4 has a two-layer structure, but a single-layer structure may be used as long as it has excellent shock absorption properties. A hard synthetic resin or metal material with excellent impact resistance is placed between the cushion sheet 4 and the cover sheet 5, which are on the outer side when worn, or between the two layers if the cushion sheet 4 has two layers. A plate-like body may be interposed to disperse the impact upon impact. Furthermore, the cover sheet 5 covering the cushion sheet 4 can be arbitrarily selected from artificial leather, synthetic fiber woven fabric, synthetic resin sheet, etc. as long as it is flexible and strong, and is not particularly limited to pig skin. .

Effects of the invention This invention is based on the above, and the protector body 1
has a height that reaches from the heel to the upper part of the Achilles tendon, and covers the rear side of the foot in an area extending from the Achilles tendon to both the medial and lateral malleolus; The heel bottom part 3 is connected to the lower end of the surrounding part 2 and is located on the underside of the heel, and the side surrounding part 2 and the heel bottom part 3 are formed from an elastic body 10 with high shock absorption properties. Therefore, even if you hit your heel, ankle, or Achilles tendon against the bar while practicing techniques, the impact will be absorbed by the impact body 10, so you will feel almost no pain when hitting the ball, and injuries will be prevented. It removes the fear of practitioners and allows them to practice as planned.

Further, the protector main body 1 has a heel bottom portion 3,
In addition, since the protector main body 1 is provided with a tightening member 9 that can be freely connected and straddled over the front of the ankle and the top of the foot, it is easy to put on and take off, and a stable wearing state can be obtained when wearing it, making it easy to practice. There is no risk of it moving or coming off inadvertently. Moreover, since the lateral surrounding part 2 formed from the impact body 10 has a height that reaches from the heel to the Achilles tendon,
You can freely bend and straighten your ankle when wearing it, and you will not feel any discomfort when wearing it.

In addition, since the heel sole 3 is positioned only on the underside of the heel with respect to the sole of the foot, the most important and delicate function is not only during performance with the toes extended, but also when landing. It does not interfere with the function of the toe part, which is required. Therefore, the protector P according to this invention can be suitably used not only for practicing individual skills but also for so-called continuous practice.

[Brief explanation of the drawing]

Figures 1 to 4 show an embodiment of this invention, in which Figure 1 is a perspective view of the whole with a part cut away, Figure 2 is a sectional view taken along the line of Figure 1, and Figure 3
The drawings are a sectional view taken along the line of FIG. 1, FIG. 4 is a perspective view of a person practicing using a protector, and FIG. 5 is a perspective view of the protector being worn. 1...Protector main body, 2...Side surrounding area,
3...Heel bottom, 4...Cushion sheet, 5...
Cover sheet, 6... Polyurethane resin foam layer, 7... Ethylene-vinyl acetate copolymer (EVA) resin foam layer, 9... Tightening member, 9a...
...First belt, 9b... Second belt, 10... Rape body, 11, 12, 13, 14... Surface fastener, P... Protector.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) The cross section of the protector body 1 has a height that reaches from the heel to the upper part of the Achilles tendon and covers the rear side peripheral surface of the foot in an area extending from the Achilles tendon to both the medial and lateral malleolus. It is composed of a substantially U-shaped side surrounding part 2 and a heel bottom part 3 connected to the lower end of this side surrounding part 2 and positioned on the lower surface of the heel.
and an assault body 10 in which the heel bottom 3 has high shock absorption properties.
The protector body 1 is formed from
This protector for gymnastics training is provided with a tightening member 9 that can be freely connected and straddled over the front of the ankle and the top of the foot to attach the protector main body 1 to a predetermined position on the foot. (2) The elastic body 10 has a polyurethane resin foam layer 6
A cushion sheet 4 having a two-layer structure in which an ethylene-vinyl acetate copolymer (EVA) resin foam layer 7 is laminated and integrated on one side of the cushion sheet 4 is wrapped in a cover sheet 5 made of flexible and tough leather or the like. A protector for mechanical gymnastics practice according to claim 1 of the patent registration claim. (3) A protector for gymnastics practice according to claim 1 or 2 of the utility model registration claim in which the cover sheet 5 is made of pigskin. The attached first belt 9a and the pair of left and right second belts 9 attached to the lower end of the side edge of the side surrounding portion 2.
b, 9b, which can be freely connected by hook-and-loop fasteners 11, 12, 13, and 14 fixed to the outer surface of each belt 9a, 9b or the side circumferential surrounding portion 2. Claim 1: The protector for mechanical gymnastics practice according to any one of items 3 to 3.