WO2011010829A2

WO2011010829A2 - Shuttlecock for racket game in small indoor spaces

Info

Publication number: WO2011010829A2
Application number: PCT/KR2010/004597
Authority: WO
Inventors: 김상웅
Original assignee: Kim Sang-Woong
Priority date: 2009-07-18
Filing date: 2010-07-15
Publication date: 2011-01-27
Also published as: JP2012533395A; WO2011010829A3; KR200447562Y1; CN102481477B; CN102481477A

Abstract

The present invention relates to a shuttlecock for a racket game in a small indoor space. The shuttlecock weighs 1.5-3g, and has a base having a diameter of 16-23mm and a vertical length of 14-21mm, and 10-14 feathers having a vertical diameter of 40-60mm, wherein the vertical length of the shuttlecock from the lower end of the base to the upper end of the feathers ranges from 50 to 80mm. The shuttlecock allows the flying distance and height thereof to be reduced, and thus a game can be played even in a small space. The shuttlecock is light, and thus elderly people and children can play a game with ease and the likelihood of joint pain can be prevented. As the flying distance of the shuttlecock is shortened, the shuttlecock can travel back and forth more frequently, thereby increasing amusement. A racket game playing using the present invention is a step-based exercise which increases the amount of exercise, and is easy to play. Therefore, the racket game is suitable for development into a national sport.

Description

Shuttlecocks for racket races for small indoor spaces

The present invention relates to a racket game shuttlecock that allows the user to select the weight while allowing the game in a narrow indoor space.

In general, a game of hitting a ball (shuttlecock) with a racket includes tennis, badminton, squash, and speed minton, among which, the items constituting the badminton match set are described in more detail below.

First, as shown in FIG. 1, the racket has a handle 2, a string portion 4, a head 6 provided with the string portion 4, and an impact force at the time of hitting the shuttlecock. It consists of a shaft 8 formed in a hollow, a throat 9, the total length of which does not exceed 680 mm, the overall width of the string part 4, including the handle 2 part in the range of 200-250 mm. The length should be within 280mm in total length and 220mm in width, the shaft diameter is 7-8.5mm, and the cross section thickness is 1.5-2.5mm.

As shown in Fig. 2, the shuttlecock is a bird feather 20 inserted into a base 10 made of a hemispherical cork, weighing 4.5 to 5.5 g, a cork diameter of 2.5 to 2.8 cm, and the number of feathers. 16 pieces, the length of the end of the feather to the top surface of the base should be 6.4 ~ 7.0cm, the diameter of the feather tip is 58 ~ 68mm, the top surface of the base 10 and the outer peripheral surface of the feather 20 is about 65 ° ~ 75 ° The maximum speed is 320km / h, and the player must fall between 53 and 99cm inside the opposite back boundary line by hitting an underhand from one end of the court.

However, the badminton is relatively lighter than the tennis ball and the feathers are opened at a certain angle, so the wind is affected by the wind, so even if the outdoor is weak, the shuttlecock cannot fly in the desired direction and distance. All must be done in a blocked indoor stadium. In this case, the ceiling height should be at least 9m to ensure the flight distance and flight height of the shuttlecock.

As such, the existing badminton game requires a space of 9m or more and a space for applying a 13.4m court, which is difficult to secure in the interior space of general buildings. There was a problem that was almost impossible to secure, which made it an obstacle to popular diffusion.

In addition, the vibration generated when the shuttlecock hit the racket has a problem that the elbow is generated to stimulate the arm.

Meanwhile, in order to solve the problem of badminton receiving a lot of wind resistance, speedminton, which combines badminton and tennis, is widely used, which uses a speeder with a heavy rubber base to reduce wind resistance. will be.

However, these speedminton's speeders are heavier than shuttlecocks, and have a bad effect on joints, and are not suitable for the elderly or children because of their speed.

In order to reduce the burden on the joints and the racket game in a narrow space, the applicant of the present invention has applied for a racket game set and its playing method to enable a racket game even in a narrow indoor space. The most important thing for a racket game is the shuttlecock's flight.

However, as described above, in order to reduce the flight distance of the shuttlecock, it is important to properly adjust the dimensions and weights of the feather and the base, but in the related art, there are no embodiments for reducing the flight distance, and the conventional badminton shuttlecock Simply reducing the dimensions of the system is not only difficult to achieve the desired flight distance, but also difficult to maintain a stable flight curve.

For example, if the size of the feather is smaller than that of the conventional badminton shuttlecock, the shuttlecock may not hold the center properly during the flight, preventing the shuttlecock from flying steadily, and the feather size will be relatively small compared to the base. There was a problem that the less the flight distance of the shuttlecock longer than before. In addition, if the size of the feather is left intact, but the base is manufactured in a smaller size than the conventional one, the flight distance becomes shorter as the weight becomes lighter, but the size of the feather becomes too large compared to the base, resulting in too much air resistance during the flight, resulting in excessively short flight distance There was a problem.

An object of the present invention is to adjust the weight and dimensions of the shuttle cock to ensure a stable flight while ensuring a flight distance that fits the dimensions of the narrow indoor space, in particular to allow the user to select a shuttle cock having a flight distance that matches the dimensions of the indoor space It is an object to provide shuttlecocks of various weights.

Features of the present invention for achieving the above object, the diameter of the base is 16-23mm, the vertical length of the base is 14-21mm, the vertical length is 50-80mm from the lower end of the base to the upper end of the feather, the end of the feather 40-60mm in diameter, 10-14 feathers and 1.5-3g shuttlecocks.

In order to adjust the flight distance of the shuttlecock in the above-described configuration, one or more of the dimensions of the feather and the dimensions of the base are selected and adjusted within the above range, or the weight is adjusted by varying the porosity of the cork constituting the base of the shuttlecock. Or adjust the weight by adjusting the number of times the adhesive is applied to the base and the feather connection.

As an example of adjusting the base porosity of the shuttlecock, natural cork and artificial cork are laminated, or artificial cork with different porosity is laminated, but the porosity is selected and used according to the weight of the desired shuttlecock, for example, natural cork and artificial cork are laminated. In the case, natural cork is placed at the point of impact, and artificial cork has a porosity different from that of artificial cork, and artificial cork having a porosity corresponding to natural cork is disposed at the point of impact. Therefore, artificial cork having an appropriate porosity is selected and used.

Look at the effect of the present invention configured as described above.

First, since shuttlecocks' flight distance is shorter than conventional racquet games including badminton and flight altitude is also low, the racquet game can be enjoyed in the interior space of general buildings with ceiling height of 3m-4m. It is possible to enjoy a racket game anytime and anywhere without restrictions, which has a great effect on the spread of racket games.

This is because the shuttlecock is lighter and feathers spread more widely than before, and thus, the flight speed and altitude are reduced due to the resistance during the flight.

Second, since the number of feathers decreases, the diameter of the base, the overall size, and the total weight decrease, the shuttlecock becomes lighter, so that the impact generated when the hit is reduced to prevent joint damage such as tennis elbow.

Moreover, as described above, the burden of the load is reduced, so that everyone of all ages, such as the elderly and children, can enjoy the game.

Third, the shorter the flight distance, the shorter the time from hitting to hitting again after receiving the opponent's receive, which increases the movement, using the smaller racquet and shuttlecock for faster and more powerful action. Since it is necessary, it is also suitable for a user who requires a large amount of exercise, such as a large amount of exercise.

1 is a view showing a conventional racket

2 is a perspective view of a conventional shuttlecock

3 is a view showing a conventional coat standard

4 is a view showing the structure of a shuttlecock according to the present invention

5 is a view showing the base structure of FIG.

Figure 6 shows a racket according to the invention

7 is a cross-sectional view of the shaft according to the present invention

8 is a view showing the trajectory of the shuttlecock when using the racket game set of the present invention and the conventional racket game set

* Description of the symbols for the main parts of the drawings *

110: string portion 120: handle

210: base 220: feather

212: natural cork 214: artificial cork

216: shell

Hereinafter, an embodiment of the present invention will be described in more detail with reference to the accompanying drawings.

4 to 5 is a view showing a racket racing shuttlecock according to the present invention, Figures 6 to 7 is a view showing a racket used with the above shuttlecock, Figure 8 is a conventional racket racing set and shuttlecock of the present invention Figure shows the trajectory of the shuttlecock when and rackets are used.

Shuttlecock for racket racing according to the present invention, as shown in Figure 4, the diameter of the base 210 is 16 ~ 23mm, the vertical length of the base 210 is 14 ~ 21mm, the feather 220 at the lower end of the base 210 The vertical length to the upper end of the 50-80mm, the end diameter of the feather 220 is 40-60mm, the feather 220 is used 10-14, the weight is 1.5-3g.

The weight is determined by adjusting one or more of the dimensions of the feather, the dimensions of the base and the weight of the base to adjust within the above-described weight range, mainly determines the weight of the entire shuttlecock as the material of the base.

As the structure of determining the weight by the material of the base, the cork constituting the base is bonded to the artificial cork 214 and the natural cork 212 with an adhesive as shown in FIG. In order to adjust the weight, the artificial cork 214 may have a different porosity by varying the foaming rate of the artificial cork 214 according to a desired weight, and then select and use an artificial cork having a porosity corresponding to the weight to be manufactured.

As an example, to increase the weight, a foam having a small porosity of artificial cork is used, and to foam a small weight, a foam having a large porosity of artificial cork is used.

At this time, by placing the natural cork (212) at the lower end of the base 210, that is, hitting point so that the feel is not lowered.

Then, as described above, after laminating the natural cork 212 and the artificial cork 214, molded according to the shape of the base 210, and covered with a urethane-coated fabric as the outer shell 216 to manufacture a base To complete.

The shuttlecock thus manufactured shall not exceed 7.5m in length from the point of hitting to the point of landing when hitting with full understroke.

In another embodiment, when the artificial cork having different porosity is laminated, the impact point, that is, the artificial cork positioned at the lower side, has a porosity similar to that of natural cork, and the artificial cork positioned at the upper side thereof is adjusted to have a desired weight. Artificial cork with porosity is used.

In addition, the cork may be used by laminating two or three or more sheets.

On the other hand, if the desired weight can not be adjusted only by adjusting the porosity, it is possible to adjust the number of times the adhesive is applied to the connection portion of the base, that is, the upper part of the base. If it is less than, the adhesive is usually applied only once on the upper surface of the base, but by double coating, the weight can be compensated for.

On the other hand, in order to optimally use the shuttlecock described above briefly looks at the configuration of the other items used in the racket game for narrow indoor space.

6 and 7 are views showing a racket to be used with the shuttlecock described above, wherein the racket has a weight in the range of 50g-70g in order not to go out much of the shuttlecock distance as shown in FIG. 470mm, the overall width is 150-185mm, the length of the string portion 110 is 200-225mm, the dimensions of the handle 120 and the shaft 130 and the throat 140 is adjusted in the range of 230mm-255mm in total.

The shaft 130 has a diameter of 5-7 mm and a cross-sectional thickness of 0.5-1.5 mm, as shown in FIG.

In addition, the size of the handle 120 is 90-160mm, which is intended to minimize the size of the handle while preventing the inconvenience when holding the handle.

And, the interval of the string is to be a square with one side is 0.6-1.2cm, which is to be described later as the shuttlecock narrower as the size is reduced so that the shuttlecock is not caught between the strings at the time of hitting.

When hitting a full understroke using a racket constructed as such, the shuttlecock shall not exceed 7.5m in length from the hitting point to the landing point.

According to the shuttlecock configured as described above, it is possible to manufacture by adjusting the weight of the shuttlecock in various ways, so that the user can select a shuttlecock having a weight corresponding to the dimensions of the space they want to use, so that the racket competition can proceed in any space Will be.

In addition, the size of the shuttlecock is greatly reduced the size of the base and the number of feathers, the overall size is smaller and the weight is significantly reduced compared to the prior art is lower than the conventional flight height and short flight distance.

In the case of using the shuttlecock according to the present invention and a racket according to the same, referring to FIG. 8, the mileage and height of FIG. 8 represent a flight trajectory when using a conventional badminton racket and shuttlecock in a long high service, and a solid line is shown in FIG. By showing the flight trajectory of the shuttlecock in the long high service using the racket and the shuttlecock of the invention, it can be seen that the flight trajectory of the present invention is lower and shorter than in the prior art.

Accordingly, when the shuttlecock and the racket of the present invention are used, the flight height of the shuttlecock is lowered and the flight distance is shortened, so that the movement can be performed indoors, and the game can be performed in a room having a height of 3-4 m.

Claims

In the shuttlecock of the racket game,

The diameter of the base 210 is 16 ~ 23mm, the vertical length of the base 210 is 14 ~ 21mm, the vertical length is 50-80mm from the lower end of the base 210 to the upper end of the feather 220, feather 220 The end diameter of the 40-60mm, the feather 220 is used for 10 to 14, the weight of the shuttlecock for a narrow racket game, characterized in that the weight is 1.5-3g.
The shuttlecock of claim 1, wherein the weight of the shuttlecock is adjusted within the above range by selecting one or more of the dimensions of the feather and the dimensions of the base.
The method of claim 1, wherein the base of the shuttlecock is laminated with natural cork and artificial cork, or artificial cork with different porosity, the porosity is selected and used according to the weight of the desired shuttlecock, covering the outer shell of the cork Shuttlecocks for racket races for narrow indoor spaces.