4/08/2010

Patent Info

Disadvantages of conventional badminton rackets:

1. Defect in control:
Conventional stringing of the badminton rackets tends to cause larger cells in the string mesh, which reduces the rebound stability in hitting the shuttle and also lowers the precision in controlling.
2. Short life span of a racket:
To make the shuttlecock fly in an ideal parabolic curve at high speed, high stringing tension is needed. However, the life span of a racket is hence shortened.
3. Obstruction against popularizing Badminton:
Since the racket fails to be durable enough, the expenses in racket purchase become a heavy burden for players and thus hinder badminton from becoming popular.

Advantages of rackets with dense mesh:
In skills, the racket with dense stringing mesh produces advantages:


1. The more precise contact point leads to faster and more stable smashes.
2. Faster drives cause the opponents to miss for the lack of reaction time.
3. The long parabolic curve in the shuttle flight, caused by high tension of strings, enables the shuttle to fall within the baselines no matter how hard it is hit.
4. Better offense can be achieved by using the counterforce against opponents’ attack


In economy,the racket with dense stringing mesh provides benefits:

1. More durable stringing lengthens the usage of string
2. The racket frames can stay in the normal shape and fracture of frames can be avoided.
3. The damage to shuttles can also be reduced.
Even with low stringing tension, this specific racket still possesses the power as an ordinary one with high stringing tension. The performance of rackets is enhanced because of this technique of stringing, so the shuttle flies at a pretty high initial speed, a stable speed during the fight orbit, and a final speed ending with an ideal parabolic curve. Therefore, the speeds during flights can be more precisely controlled by players.

The design of racket is constrained because of the rules from International Badminton Federation:


1. The long side of the court is 13.4 meters.
2. The height of the net is 1.55 meters.
3. The weight of the shuttle is between 4.74 to 5.50 grams, including the nylon ball.
4. The standard flight speed of the shuttles is also regulated.
5. The length of the racket can’t exceed 68 centimeters.

Owing to the mentioned limitations, there seems no much further improvement for the research in badminton rackets. However, physical rules demonstrate the high surface tension performance of a racket can change the speed, the flight orbit, and thus bring about many benefits, such as easier control over shuttles, shortening the training time for skills, and popularizing this fabulous sport. To strengthen the tension of a racket strings without using heavy forces, all that needs to be done is to increase the horizontal and vertical lines of a racket; that is, to increase the mesh cells. The low-forced stringing racket can perform as well as the strong-forced stringing one, and even brings about more advantages.

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