JP2007135667A - Tennis practicing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem wherein such a self-practicing device as to allow a user to efficiently practice tennis in a state similar to the actual play of tennis, in which a ball is alternately hit with an opponent player, did not exist. <P>SOLUTION: The tennis practice device has a repulsive net formed by weaving and stretching strings. The repulsive net is folded or bent and positioned. A protection material such as a protection net is attached to the end edges and the upper edge of the repulsive net. The repulsive net is stretched by each divided frame, and the tennis practice device is structured by combining the divided frames. An elastic material is interposed in the connection between the frames. A frame whose lower part is bent is connected and fixed to a fixed support via the elastic material, and a net with different repulsion is disposed under the bent frame. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a tennis practice device, and more particularly to a tennis practice device that allows a player to execute alone.

  Traditionally, tennis competitions are performed by having opponents and hitting the ball. For this reason, practice is usually performed by hitting the ball in the presence of multiple people. In some cases, it is a so-called wall hitting, and only the practice method of hitting a ball toward various flat walls and ridges and hitting the bounced ball repeatedly is performed.

In addition, the wall strike in the above-mentioned single practice will be different from the rebound coefficient by the racket when there is an opponent, and the ball speed will also be different. Unless otherwise, the ball will be repelled at an angle, making it difficult to continue the rally for a long time, making it difficult to obtain efficient practice results.
JP-T-2003-517357 Japanese Utility Model Publication No. 6-44569 Japanese Utility Model Publication No. 7-28579

  The problem to be solved by the present invention is that there is no device for single practice in a state where the ball hits each other with the opponent and the player is efficient and close to the actual battle. .

  In order to solve the above-mentioned problems, the tennis practice device according to the present invention is characterized in that a rebound net formed by knitting and stretching a gut is bent or bent, positioned and installed, A protective material such as a protective net is provided on the edge and upper edge of the repelling net.

  The tennis training apparatus according to the present invention is characterized in that the repulsion net is stretched for each divided frame, and the frames are combined to form a resiliently connected frame. It is characterized by having a material interposed, and a frame bent downward from a fixed support is connected and fixed with an elastic material interposed, and a net with different repulsive force is arranged below the frame It is characterized by.

  The tennis practice device according to the present invention is configured as described above. Because it is stretched with a gut used for ordinary rackets, the rebound of the hit ball is close to that of the game, and in addition, the frame with the gut stretched is used to support or support the elastic material , The power to turn the racket back and forth will be close to the actual battle.

  In addition, the angle and curved surface are formed as a whole in the repulsion net by bending and bending the frame or the combined structure of the frame that stretches the gut, and the ball hit against the repulsion net does not dissipate, It is hoped that the ball will be returned to nearby, less time and effort to collect the ball after practice, it will be easier to continue the rally state for a long time.

  This is realized by configuring as in the embodiment shown in the drawings.

  Next, a preferred embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a plan view showing a tennis practice apparatus embodying the present invention, FIG. 2 is a side view, FIG. 3 is a front view showing a single frame, and FIG. 4 is a side view showing the degree of bending of the frame. 5 is a front view showing another frame, FIG. 6 is a side view showing another example of the frame, FIG. 7 is a side view showing the support structure of the frame, and FIG. 8 is a plane showing the bending of the frame. 9 is a front view showing the combination of the frames, FIG. 10 is a side view showing the support structure of the frame, and FIG. 11 is a side view showing the bent structure of the support member.

  In these drawings, 1 is a practice court, 2 is a single side line, and 3 is a doubles side line. In the back of the coat 1, a frame 5 provided with a repulsion net 4 in which a gut is knitted and stretched is connected and combined by a plurality of joints 5a, 5a.

  Although the frame 5 described above may be flat, the lower part is bent at an obtuse angle, and as a whole of the combined structure, both blades are bent inward or bent in an arc shape. The ball hit by the player due to this bending and bending will not be dissipated but will be repelled and returned to the place where the player is located.

  The frame 5 is fixed to the front surface of the upper end of the support member 6 via a connecting member 6a, and the support member 6 is disposed upright on the coat 1 or on the support plate 7, The support plate 7 is fixed to the coat 1 by anchor bolts 7a, 7a and the like. Further, a net 8 is provided below the frame 5 to prevent the balls from escaping.

  Further, a windshield cover 9 is provided at the rear, side and top of the frame 5 on which the repulsion net 4 is stretched. The cover body 9 is also fixed to the support plate 7 at its lower end, It is said that the collar part 9a which protects the upper part was also formed.

  Further, the bent structure of the frame 5 can be arbitrarily provided and changed according to the purpose, such as 5b in which the bent portion is shortened or 5c in which the bent portion is straight and flat (see FIG. 4).

  The support member 6 not only has its lower end directly erected on the support plate 7, but also has a receiving section 10 having a radial cross section that also serves as a weight on the surface of the support plate 7. It can also be set as the structure etc. which insert a lower end and fix using screws 11 and 11. In this case, the upper end of the support member 6 can also be inserted into the connecting member 6 a and fixed with screws 11, 11.

  Further, as a positional relationship between the frame 5 and the connecting member 6a, when the lower end portion of the connecting member 6a is positioned up to the bent portion having a slightly obtuse angle, the space 5 generated there causes the frame 5 and thus the repelling net 4 to It becomes easier to rebound the repulsive force, and a stronger hit ball can be returned.

  In addition, when combining the frames 5 and 5 to bend the left and right as a whole, or to bend the whole, the contact part of each frame 5 and 5 has a slight gap, and only the front edge is Even if they are brought into contact with each other, the side edges of the frames 5 and 5 can be brought into close contact with each other with a taper.

  And in the repulsion net 4 formed by knitting and stretching the gut, in addition to the gut described above, a net 12 made of another material such as a plastic string (yarn) or other metal wire can be mixed.

  Furthermore, when the above-described support member 6 having a structure in which elastic leaf springs are superposed is used as shown in FIG. 10, in addition to the presence of the space S, the support member 6 itself also has a repulsion net 4. When the ball is hit, it is bent and restored by the impact, so that the repulsive force is further enhanced, and a return ball in accordance with a stronger actual battle can be expected.

  As a structure for increasing the repulsive force by increasing the repulsive force by the support member 6 itself, as shown in FIG. 11, the support member 6 is made of a metal plate such as steel and has at least one obtuse bent portion 6b. , 6b... Can be achieved by forming them in different directions.

  The tennis practice device according to the present invention is configured as described above. Therefore, it can be installed both outdoors and indoors, and it is possible to practice doubles by pairing as necessary. Further, in the present embodiment, the repulsion net 4 is stretched around the frame 5 and is fixed to the ground or the floor. However, the repulsion net 4 is suspended from above or pulled from the side as necessary. The size can be set freely. If the number of frames is reduced, installation in a relatively small space is possible.

It is a top view which shows the practice apparatus for tennis which implemented this invention. It is a side view. It is a front view which shows a single frame. It is a side view which shows the yielding degree of a flame | frame. It is a front view which shows another frame. It is a side view which shows the example of another frame. It is a side view which shows the support structure of a flame | frame. It is a top view which shows the bending of a flame | frame. It is a front view which shows the combination of a flame | frame. It is a side view which shows the support structure of a flame | frame. It is a side view which shows the bending structure of a supporting member.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Coat 2 Side line for singles 3 Side line for doubles 4 Repulsion net 5 Frame 5a Joint 5b Frame 5c Frame 6 Support member 6a Connection member 7 Support plate 7a Anchor bolt 8 Net 9 Cover body 9a Saddle 10 Receiving part 11 Screw 12 Net S space

Claims (5)

  A tennis practice device characterized in that a rebound net formed by knitting and stretching a gut is bent or bent, positioned and installed.   2. The tennis practice device according to claim 1, wherein a protective material such as a protective net is provided on an edge and an upper edge of the repelling net.   3. The tennis practice device according to claim 1, wherein the repulsion net is stretched for each divided frame, and each frame is combined.   4. The tennis practice device according to claim 1, wherein a resilient material is interposed in the connection of the frames. 3. A frame, bent downward on a fixed column, is connected and fixed with an elastic material interposed, and a net having a different repulsive force is arranged below the frame. The tennis practice device according to claim 3 or 4.

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