KR200477758Y1

KR200477758Y1 - Decelerated Badminton Synthetic Shuttlecock

Info

Publication number: KR200477758Y1
Application number: KR2020130010749U
Authority: KR
Inventors: 이기용
Original assignee: 이기용
Priority date: 2013-12-25
Filing date: 2013-12-25
Publication date: 2015-07-16
Also published as: KR20150002602U

Abstract

This design is an artificial badminton shuttlecock that rotates and advances in deceleration performance and in flight. Its overall shape is conical or truncated in the form of a trumpet that is bent outward. The detailed name is a binding ring that connects the flagpole and the flagpole in a circular shape, and the end of the flagpole As shown in FIG. The flagpole is provided with a recessed groove for increasing the strength, and the coupling ring is bound to the flagpole in a circular shape, and the feather portion is formed in a bored hole or a hole to reduce air resistance. Further, the artificial shuttlecock is structured such that the feather portion is tilted at a predetermined angle from the circular shape to the binding ring or has a spiral angle in order to rotate and advance.

Description

Decelerated Badminton Synthetic Shuttlecock}

It is made up of a structure in which a plastic cardboard is formed into a cone shape, then a flagpole, a circular ring of binding members for binding the flagpole, and a feather portion at the end of the flagpole are cut. In order to increase the strength, the flagpole is formed in a rough shape (see the drawing), and the binding ring binds the flagpole in a circular shape. The feather part is located at the end of the flagpole and tied at a certain angle to the binding ring so that it rotates when flying. In order to increase the air resistance, it is also possible to bend outward to form a trumpet. You can drill holes or holes in the feathers to reduce air resistance. By adjusting the two performances, it is possible to appropriately implement the desired deceleration performance. The feather part is tied to the binding ring in the form of giving a certain angle from the circular shape, so that it can rotate when flying, thereby increasing deceleration performance.

The conventional plastic shuttlecock is made of a structure having a net-like shape, which has a problem in that it can not be utilized because it can not have a change in dependency. In addition, the natural shuttlecock has a problem in that it has to be individually machined by the human hand, so productivity is low and there is always a difficulty to select a certain quality. In addition, the art discloses a shuttlecock of artificial material disclosed in Japanese Patent Laid-Open No. 10-2010-7013803, but the structure for replicating the natural shuttlecock as much as possible without realizing a sufficient deceleration function is proposed. The design is to cut the plastic (like the shape of a plastic cup) by shaping it into a conical shape with irregularities so that it has the shape of a feather with a flagpole, a binding ring and a perforated part.

Plastic shuttlecocks have a long lifetime, but due to their weight limitations, it is difficult to use materials with good elasticity to obtain a thin molded object, so they maintain net-like wings, It wings. It is difficult to achieve slow deceleration performance when the shuttlecock is flying slower than the first speed because it is structurally deformed after the deformation, and it is difficult to give stability to the flight because it is shaken when flying. The invention allows the artificial shuttlecock to decelerate relative to the first speed when flying. It also rotates and advances to increase the deceleration effect and to reduce tremor during flight.

In order to obtain the effect of decelerating the slave relative to the initial speed with light weight and elasticity, a thin sheet shape is formed into a conical shape and a conical shape is formed. In order to form the conical shape, the developed view of the air resistance portion is formed into a flat sheet, It can also be made by splicing or splitting this sector into multiple small sectors. In an even better way, it can be printed in one piece like the shape of a plastic cup. In order to maintain the light weight and to increase the strength, the flagpole and the binding ring are wrinkled to solve the problem. In order to impart the rotational force, the feathers are attached to the binding ring at a certain angle, or the end portions of the feathers are twisted in a helical shape And make them. In order to increase the resistance of the air, the shape of the air resistance portion is formed from a conical shape to give a truncated form, and in order to reduce air resistance, a groove or a hole is formed in the wing portion to reduce the area of contact with air.

The effect of the present invention is that it is easy to select a plastic material that meets the conditions of strength and elasticity by selecting a variety of plastic materials. It is easy to realize the desired deceleration performance by adjusting the size of the feather portion, the degree of bowing outwardly, the size or number of the gap in the feather portion, the size and number of holes, and the like. It is mass-produced and economical because it has superior durability compared to natural feathers. Moreover, it is possible to manufacture a shuttlecock of uniform quality more than the natural feather shuttlecock which is made by manual sorting of feathers by standardization of product. Therefore, it is possible to prevent the unevenness of the performance due to the deviation of the shuttlecock when playing. In addition, the weight and air resistance of the shuttlecock can be adjusted easily, making it easier for the elderly who have low power to make shuttlecocks for children of all ages. It is more durable than the conventional natural feather shuttlecock which can not be recycled, and it reduces the waste of life, and the conversion color of the form of the product is free, which can add to the interest of badminton.

1 is a perspective view of an air resistance adjustable conical shuttlecock
[Figure 2] is a perspective view of an air resistance adjustable trumpet shuttlecock

The manufacturing method may be a one-time polymer injection molding to form a single air resistance unit, and a flat sheet may have one or more developed shapes of the air resistance unit, .

In order to maintain the lightweight weight of the air resistance part and to have elasticity,

1. U-shaped bent in the inner direction,

2. U-shaped curved shape in the outer direction,

3. In order to further increase the strength, the irregularities of the first and second shapes may be superimposed to form a plurality of corrugated iron corrugations (see the drawing). In addition, U-shaped concavity and convexity can be imparted to the binding rings for fixing the plurality of flagpoles in a circular shape to increase the elastic strength.

The feather portion is inclined at an angle of less than 30 degrees to the outer contact point of the binding ring, and the racket imparts a rotational force to the ball when the ball is hit, thereby advancing the ball while rotating, thereby reducing the tilting phenomenon during flight. The resistance is increased and the deceleration function becomes larger. From the opposite side of the cork, the feathers may be thought of as having a certain angle with respect to the circumferential tangent. Such a structure can control the rotational force according to the angle like a propeller of an aircraft. In order to achieve the same effect, the shape of the feather part may be spiral.

Conversely, to reduce the air resistance of the feather portion, a hole or hole is made in the feather portion. In this way, reducing the contact area of the air to reduce the resistance of the air can reduce the effect of reducing the dependency.

By combining the increase and decrease of the resistance of the air, it is possible to obtain the desired flying distance by controlling the degree of dependency reduction compared to the initial speed.

Also, the weight of the air resistance portion is set to be within 3.2 g, and when the weight is more than this weight, it is difficult to control the reduction effect of the initial speed by utilizing the weight of the conventional cork. Also, as the center of gravity moves from the front part to the rear part of the shuttlecock, the phenomenon of wobbling when flying according to the blow increases. More preferably, if the total weight of the shuttlecock is limited to 5.2 g or less, the flight can be stably implemented without such a problem.

The material of the feather part can be easily manufactured when the thermoplastic resin is thermoplastic resin. Among them, ABS resin, acrylic resin, nylon, polycarbonate, polyethylene terephthalate, high density polyethylene, high density polyethylene Polypropylene, and vinyl chloride resin. Further, the material of the feather portion can be realized by a thermosetting resin, and when a silicone resin or polyurethane is used, a restoring force by an elastic force can be secured. In order to improve the durability, the material of the air resistance portion may be impregnated with the polymer resin in the net sachet. Also, in order to maintain the elastic force with a light weight, the material of the air resistance portion can be molded by pressing the foamed material.

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Claims

1. An artificial shuttlecock having an air resistance portion having a conical shape formed of a thin sheet or a truncated shape bent outward,
A cork portion having a hemispherical cork formed of an elastic material; And
A plurality of feathers formed of a plurality of feathers which are connected to the cork portion and which are cut off and a plurality of feathers each having a plurality of feathers and a plurality of feathers, And an air resistance portion including a flag portion having a binding ring,
The weight of the air resistance portion is 3.2g or less, the total weight of the artificial shuttlecock is 5.2g or less,
Wherein the feather portion is provided with a plurality of holes arranged in two rows each penetrating the plurality of feathers,
Wherein the plurality of feathers are tilted at an angle of not more than 30 degrees to the circular shape of the binding ring and are rotated when hit by the racket, and,
Wherein each of the plurality of flagpoles is fixed to an outer periphery of a flat portion of a hemispherical cork so that the saddle is deflected when the saddle is hit by a racket and the saddle is reduced compared to the first speed by an elastic force that is originally restored. .

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The method according to claim 1,
The cross-sections of the flagpole
And has a U-shaped curved shape in the inside direction.

The method according to claim 1,
The cross-sections of the flagpole
And has a U-shaped curved shape in the outward direction.

The method according to claim 1,
The flagpole
Wherein a plurality of concave and convex shapes are formed in a corrugated shape to increase the strength against warpage.

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The method according to claim 1,
The material of the feather portion
A slowing function badminton artificial shuttlecock comprising a thermoplastic resin.

13. The method of claim 12,
The thermoplastic resin
Wherein the deceleration function badminton artificial shuttlecock is one of ABS resin, acrylic resin, nylon, polycarbonate, polyethylene terephthalate, high density polyethylene, high density polypropylene and vinyl chloride resin.

The method according to claim 1,
The material of the feather portion
Wherein the thermosetting resin is a thermosetting resin.

15. The method of claim 14,
The thermosetting resin
Silicone resin or polyurethane. &Lt; RTI ID = 0.0 > 11. < / RTI >

The method according to claim 1,
The material of the feather portion
Wherein the strength is increased by a structure in which a polymer resin is impregnated into the mesh sachet.

The method according to claim 1,
The material of the feather portion
Wherein the foam material is compressed and molded.