RU107950U1 - PNEUMATIC RACKET FOR TENNIS GAME - Google Patents

Abstract

 1. Racket for playing tennis, containing a rim with a net, a connecting element and a handle, characterized in that the mesh cells are formed by interconnected inflatable tubular elements. ! 2. The racket according to claim 1, characterized in that the tubular elements are made of a polymer film. ! 3. The racket according to claim 1, characterized in that in one of the tubular elements a valve for gas injection is fixed. ! 4. The racket according to claim 1, characterized in that the rim and / or connecting elements and / or the handle are inflatable.

Description

The utility model relates to the field of sports, namely, products for playing tennis.

Known tennis racket containing a rim with a mesh, connecting elements and a handle made of composite material having a tubular cross section and a string surface with one axis of symmetry, which is the longitudinal axis of the racket (RF patent No. 2113877 C1 of 06.27.1998).

The disadvantage of this product is the complexity of the design of the racket.

A racket is also known, consisting of a reinforced rim with a mesh, connecting elements and a handle, in which, due to the reinforcement of the rim, performance is improved upon hitting the ball, which makes the racket more reliable when twisting (USSR copyright certificate SU No. 1687274 A1 of 30.10. 1991).

The disadvantage of this product is the increased mass of the racket, which reduces its maneuverability and causes increased athlete fatigue while playing tennis.

The closest analogue is a racket, consisting of a metal rim, connecting elements, a handle, and due to the greater moment of inertia of the cross section of the rim relative to the horizontal axis, compared with the moment of inertia of the cross section of the connecting element, increased flexibility of the racket during game is provided (USSR copyright certificate No. 520878 A1 of 08/01/1978).

A common drawback of all of the above racquets is the presence of a string net. At the time of hitting the ball, despite the fact that the strings are made of high-strength yarns, and during the manufacturing process the racquets receive a high degree of tension, the string surface bends due to short-term elastic dynamic stretching of the net, and the ball, after touching the net, first extinguishes its speed to zero, and then, after the receiving player hits the ball with a racket, he returns to the opponent’s court. But if the string surface of the racket at the moment of receiving the ball is stationary, then the speed of the ball will be extinguished to zero and the rebound of the ball from such a surface will not be elastic.

The objective of the utility model is to expand the functionality of the racket.

The technical result is to provide an elastic rebound of the ball from the playing surface of even a stationary racket.

The technical result is achieved due to the fact that for a tennis racket containing a rim with a net, a connecting element and a handle, according to the change, the mesh cells are formed by inflatable tubular elements connected to each other.

The tubular elements are made of a polymer film. And in one of the tubular elements a valve for gas injection is fixed.

To reduce the weight of the racket, an inflatable rim and / or connecting elements and / or racket handle can also be made.

Tubular mesh elements are made of high-strength, technologically advanced, lightweight material, for example, polyethylene terephthalate (PET).

The essence of the utility model is illustrated in the drawing.

- figure 1 schematically shows a General view of the proposed racket;

- figure 1 (a) schematically shows a fragment of the mesh structure of the playing surface of the proposed racket, made in the form of squares;

- figure 1 (b) schematically shows a fragment of the mesh structure of the playing surface of the proposed racket, made in the form of equilateral triangles;

- figure 1 (c) schematically shows a fragment of the mesh structure of the playing surface of the proposed rackets, made in the form of regular hexagons.

There are no other flat geometric figures giving a uniform mesh structure on the plane.

The proposed racket comprises a rim 1 with a mesh 2. The rim 1 is inflatable, and the cells 3 of the mesh 2 are formed by inflatable tubular elements 4 connected to each other. The tubular elements 4 are made of a polymer film, and an air injection valve is fixed in one of the tubular elements 4 ( not shown in the drawing). The rim 1 by the connecting element 5 is attached to the handle 6, while the handle 6 and the connecting element 5 are inflatable. The grid 2 of the playing surface of the proposed racket (Fig. 1) is made in the form of squares (Fig. 1 (a)), equilateral triangles (Fig. 1 (b)) or regular hexagons (Fig. 1 (c)).

Of the presented three possible options for the mesh structure (Fig. 1 (a), (b), (c)), the most preferred is the option of grid 2 with regular triangles (Fig. 1 (b)), which gives the greatest rigidity to the playing surface with the smallest material consumption. The specific dimensions of the cells 3 depend on the diameter of the ball.

An important distinctive feature of the proposed product is the fact that the tubular elements 4 of the grid 2 after gas injection in them work on the combined action of stretching and bending, so the ball bounces off such a surface even with a stationary racket (figure 1), and the rebound strength depends on the value pressure pumped into the tubular elements 4 of the gas. And with the scope of the racket (figure 1), the force of impact on the ball, compared with the string playing surface, increases sharply, which greatly expands the functionality of the playing surface of the racket (figure 1).

Consequently, the quality of tennis is reaching a new, higher level. At the same time, the entertainment of the game also increases.

The playing surface of the racket (figure 1), consisting of tubular elements 4, is made by blowing in a specially created mold (not shown in the drawing).

By the method of blowing, not only the playing surface of the racket can be made (Fig. 1), but also any of its parts: the rim 1, the connecting elements 5 and the handle 6, as well as the entire racket.

Compared to other types of racquets, such a racquet will not only be more advanced functionally, but also as light as possible. Theoretically, the mass of such a racket (Fig. 1) can be further reduced if gas lighter than air is pumped into it under pressure.

The principles and methods set forth herein may be extended to badminton rackets and table tennis.

Claims (4)

1. Racket for playing tennis, containing a rim with a net, a connecting element and a handle, characterized in that the mesh cells are formed by interconnected inflatable tubular elements. 2. The racket according to claim 1, characterized in that the tubular elements are made of a polymer film. 3. The racket according to claim 1, characterized in that in one of the tubular elements a valve for gas injection is fixed. 4. The racket according to claim 1, characterized in that the rim and / or connecting elements and / or the handle are inflatable.