JPH0341733Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial application field> When competing or practicing weightlifting, athletes bend both knees, pull their hips back, and bend their upper body forward to lift the barbell. The barbell is grasped with both hands, the barbell is pressed firmly on the floor with both feet, and the force is concentrated on both feet, legs, lower back, and lower abdominal area, and then the barbell is lifted up with both hands. Therefore, a belt specifically designed for weightlifting is used to increase the instantaneous repulsion force mainly around the lower abdomen. The present invention relates to an improvement of the weightlifting belt.

<Prior art> Belts used in conventional weightlifting competitions and practices (hereinafter referred to as weightlifting) are made of one piece of thick, almost uniform, and hard natural leather plate. There were also those made of thick, almost homogeneous, and somewhat hard natural leather plates and those made by overlapping and bonding natural leather plates of the same quality mainly only at the waist. All of these belts have hard or highly hard waist parts, so they tighten the waist and lower abdomen, so they mainly increase the instantaneous repulsion force around the lower abdomen, making it easier to apply force to lift the barbell. It was hot.

<Problems to be Solved by the Present Invention> The above-mentioned conventional weightlifting belt has a belt that extends from the lower abdominal area in the front to the waist area in the back in order to increase the instantaneous repulsion force mainly in the lower abdominal area of the athlete. It can strongly tighten the so-called waist, but on the other hand,
Since the belt is hard or highly hard and has a thick wall, it is difficult to properly fit the curve of the athlete's waist, and the upper and lower edges of the belt do not fit sharply around the athlete's waist. If the natural leather material is thin or has low hardness, the belt may stretch and cannot be tightened strongly, or the locking holes may become loose. There is a risk of it being torn off at the edges. <Means for Solving the Problems> In order to overcome the above-mentioned defects of the conventional weightlifting belt, the weightlifting belt of the present invention has a belt main body made somewhat thinner, and all or a part of the belt main body, for example, a buckle. A strong polyurethane-impregnated layer with high tensile strength is formed on the attachment part side and the plurality of latching hole forming parts of the latching piece of the buckle, and a rigid core plate is attached to the waist part of the main body of the belt. The object of the present invention is to provide a weightlifting belt in which a rigid core plate is covered with a flexible contact piece and these parts are bonded together.

<Effects of the invention> The weightlifting belt of the invention has the following effects:
Polyurethane is applied to all or a part of the belt main body a, for example, to the attachment part B of the buckle 3 on both end sides 1 and 2, and to the formation part B of the latching holes 5 and 5 of the latching pieces 4 and 4 of the buckle 3. Since the impregnated layer b is formed, the belt main body a does not stretch, which not only makes it possible to strongly tighten around the waist such as the lower abdominal area and the waist area, but also tightens the area around the waist where the latching holes 5 and 5 are formed and the buckle 3. There is no risk of the attachment part B being torn, and the fact that the natural leather material has a good fit around the waist makes it tighten with a pleasant feel, increasing the instantaneous repulsion mainly centered on the lower abdominal area, making it easy to hold the barbell. It was something that could have been lifted in a convenient manner.

<Example> The weightlifting belt of the present invention will be described below with reference to the drawings. First, as shown in Fig. 1, a soft and easily conformable natural or synthetic leather material is peeled into a piece that is somewhat thinner than the conventional one, for example, about 3 to 5 mm thick, and the main body of the belt is a.
A plurality of latching holes 5 for latching the attachment part B of the buckle 3 and the latching piece 4 of the buckle 3 are formed on the left and right end sides of the belt main body a. Next, as shown in FIG. 2 and the like, the main body of the belt a is coated with liquid polyurethane from the inner surface of all or a part of the side, for example, at the attachment part B of the buckle 3 and the forming part B of the latching hole 5. The material is impregnated and the liquid polyurethane compound is cured and molded to form a polyurethane impregnated layer b which is tough and has a high tensile strength.

Next, as shown in FIGS. 3 to 3, the belt main body a has a hard or highly hard rigid core c in contact with the waist part a on the inner surface side, and the rigid core c is made of a flexible natural or synthetic leather material or made of air bubbles. After covering with a piece d made of woven fabric or the like to which a sheet is attached, these or the piece d and the belt main body d are integrally joined by suture adhesive or other joining means.

The rigid core c is made by peeling a soft natural or synthetic leather material to a thin thickness, for example, about 2 mm to 3 mm, and applying a liquid polyurethane compound to make it hard and rigid, as shown in FIG. The material is thoroughly impregnated into the inside and formed to conform to the curvature of the athlete's waist, and the hardened molding, steel plate, or hard synthetic resin plate is formed to conform to the curvature of the athlete's waist. It can also be formed and cured. In this case, the rigid core c, which is made by impregnating the leather board with a liquid polyurethane compound to form the polyurethane-impregnated layer e, is rigid and yet can be easily fitted to the curved shape of the waist due to the flexibility of the leather material. Therefore, it is the most favorable rigid core c.

[Brief explanation of the drawing]

FIG. 1 is a schematic plan view of the main body of the belt, which is one of the main parts of the weightlifting belt of the present invention. FIG. 2 is a schematic plan view showing the inner surface of the main body of the belt, and shows that each belt has a polyurethane impregnated layer at a predetermined location. 3 to 3 are schematic diagrams of the weightlifting belt of the present invention, in which is a plan view showing the inner surface thereof, and is an illustration of a cross-sectional view taken along the - line. FIG. 4 is an illustration of a schematic cross-sectional view of a rigid core, which is another main part of the present invention. Reference symbols in the drawings: a... Belt main body, b, e... Polyurethane impregnated layer, c... Rigid core, d... Piece,
1, 2... end side, 3... buckle, 4... latching piece, 5... latching hole.

Claims (1)

[Claims for Utility Model Registration] 1. A belt body (a) made of a slightly soft natural or synthetic leather material is formed with a somewhat thin wall thickness, and at least the buckle (3) of the belt body (a) is attached to the side (ro) and a plurality of buckles. A tough polyurethane-impregnated layer b with high tensile strength is formed on the side where the latching holes 5, 5 are formed, and a relatively thin rigid core plate c, which is also in contact with the waist part A, is replaced with a flexible contact piece d. A belt for weightlifting, characterized by being equipped with a coating. 2. The weight-lifting belt according to claim 1, wherein the rigid core plate c is made of a thin natural leather plate impregnated with polyurethane to make it highly rigid. 3. The weight lifting belt according to claim 1, wherein the rigid core plate c is made of a thin hard steel plate or a highly hard synthetic resin plate. 4. The weightlifting belt according to any one of claims 1 to 3 of the utility model registration claim, wherein the piece d is made of flexible natural leather or synthetic leather.