JPH10192469A - Table tennis practicing ball returning device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To return a ball caught by a net to this side without being fallen from a table to improve the effect of practice and reduce the fatigue. SOLUTION: This device is formed of a base plate 1 with down gradient which is extended from the pole 12 side of a net support laid on a table 10 to the side edge upper surface of the table, a substantially semicircular ball returning guide 8 turned inward in a plane view which is provided vertically on the upper surface of the base plate 1 so that one end makes contact with a net 13 in about the upward position on the table side edge, and the other end is linearly extended toward the outer end central part of the table, and a fixing means for fixing the base plate 1 to the table 1, the pole 12 of the net support, or a clip base.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a table tennis practice returning ball device.

[0002]

2. Description of the Related Art Conventionally, in the practice of table tennis, the most common right-handed player practiced driving in the foreside crossing, and the ball hanging on the net rotated from the left edge of the table tennis table along the net. It falls and rolls horizontally on the floor.

[0003] The rolled ball is difficult to take due to the speed and rotation of the ball, and in many cases, it falls under the adjacent table tennis table, so that picking it up before it could be dangerous. .

[0004] In addition, a ball that has fallen on the net during a drive practice in the foreside cross hitting falls on the left side of the net near the opponent despite his own mistake, so he hurries with care of the opponent. This movement led to danger and was very wasteful and tired in table tennis practice, resulting in poor practice efficiency.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned conventional problems so that efficient table tennis practice can be performed.

[0006]

SUMMARY OF THE INVENTION According to the present invention, a ball rolling toward the side edge of a table tennis table while rotating over a net is provided.
A return ball guide provided on the side edge of the ping-pong table in contact with the net guides the player to the center of the ping-pong table, that is, to his own hand.

That is, a first aspect of the present invention is a base plate having a downward slope from a pole side of a net stretched to a table tennis table to an upper surface of a side edge of the table tennis table, and a plan view provided vertically on the upper surface of the base plate. A return ball guide having an inwardly semicircular shape, one end of an arc contacting the net at a position substantially above the side edge of the table tennis table, and the other end linearly extending toward the center of the outer end of the table tennis table; and the base plate. And a fixing means for fixing to a table tennis table, a pole of a net or a clip base.

A second aspect of the present invention is the table tennis practice return ball device according to the first aspect, wherein the base plate and the return ball guide are detachable.

A third aspect of the present invention is that the base plate according to the second aspect of the present invention can be fixed to the opposite side across the net by inverting, and the return ball guide is made of a flexible plastic. This is a table tennis practice return ball device that is capable of reversing the arc.

A fourth aspect of the present invention is the table tennis practice return ball device according to the first or second invention, wherein the base plate and the return ball guide are integrally formed symmetrically with respect to the net. is there.

[0011]

Embodiments of the present invention will be described below with reference to the drawings.

[Embodiment 1] FIG. 1 is a perspective view showing an embodiment of a table tennis practice returning ball apparatus according to the present invention. The basic structure of the apparatus is a base plate 1 and a vertically arranged top plate. An arc-shaped return ball guide 8 is used to fix the base plate 1 to the side of the table tennis table side edge.

The base plate 1 has a thickness of about 2
It is a flat plate of about 3 mm, and has a shape of a left half part of a baseball home base divided into two parts from the center. An edge of a right side 2 corresponding to the center is formed in a knife edge shape 3 and an upper part of the right side 2 is formed. A rectangular notch 4 is provided in the right angle direction, and a notch 5 having a round inner portion is provided on the left side of the base plate 1 on a left extension thereof.

The length of the rectangular cutout 4 on the upper right side of the base plate 1 is such that it fits snugly into the clip base 11 of the net support (see FIG. 2), and its depth (depth) is shown in FIG. As shown in FIG. 3, when the base plate 1 is installed at a downward gradient (about 3 ° to 5 °) from the pole 12 of the net support toward the upper surface of the side edge of the table tennis table 10, the right side 2 of the base plate 1 is It is cut so that it does not float from the upper surface of the.

The notch 5 with a rounded upper left side of the base plate 1 has a width that fits snugly into the pole 12 of the net support, and the depth of the notch 5 is such that the pole 12 is completely fitted as shown in the figure. It is cut to the position where it fits.

On the other hand, as shown in FIG.
A thin flat plate of about 2 mm is bent into an arc shape. In the example shown in the figure, a plurality of circular or square projections 9 are integrally provided at the lower end. It is fixed vertically by inserting it into a plurality of fixing holes 6 provided at positions corresponding to the protrusions 9 along an arc-shaped trajectory.

As a means for fixing the return ball guide 8 to the base plate 1, a guide guide 14 (see FIG. 4) having a concave cross section is provided on the base plate 1 along an arc-shaped trajectory. The lower end portion of the thin plate-shaped return ball guide 8 can be fitted into the groove and fixed vertically, and the means for fixing the base plate 1 and the return ball guide 8 is not particularly limited.

As shown in FIG. 2, the return ball guide 8 has a substantially semicircular arc (in a radius of curvature of about 6 to 10 c) which faces inward in a plan view.
m) has one end in contact with the net 13 at a position substantially above the side edge of the table tennis table 10, the other end linearly extends toward the center of the outer end of the table tennis table 10 as shown in FIG. , FIG.
The height of the net 1 is slightly lower than the height of the net 13 as shown in FIG.
It gradually decreases from the upper end on the third side to the lower end.

The material of the base plate 1 and the return ball guide 8 is not particularly limited. However, if it is a plastic plate such as polyethylene having flexibility and flexibility, the lower surface portion of the base plate 1 that fits into the clip base 11 can be used. By increasing the wall thickness over a certain length to form an inverted concave fitting portion 7 (see FIGS. 2 and 3), or by strictly controlling the dimensions of the square notch 4 and the round notch 5, As shown in FIGS. 2 and 3, the base plate 1 can be fitted and fixed to the clip base 11 and the pole 12 of the net support without any backlash without any fixing means.

In this case, the elastic force of the plastic base plate 1 fitted to the clip base 11 or the pole 12 of the net support serves as a fixing means.
As a fixing means for fixing to the ping-pong table 10 or the pole 12 or the clip base 11 of the net, in addition to the means utilizing the elastic force of the plastic, not shown, a clamp type using springs or screws or other various means is employed. The fixing means is not particularly limited.

If the base plate 1 and the return ball guide 8 are formed of a transparent plate, the position and movement of the ball can be easily understood.

To attach the return ball device to the ping-pong table 10, fix the net support to the ping-pong table 10, and then insert the notch 5 on the upper left side of the base plate 1
When the right side 2 is pressed against the upper surface of the ping-pong table 10 while the right side 2 is pressed into the upper side of the table tennis table 10, the square notch 4 and the inverted concave fitting part 7 at the upper right side are fitted into the clip base 11, and are stably fixed.

When the base plate 1 is inverted, it can be fixed to the clip base 11 and the pole 12 of the net support at the same gradient as described above, and the return ball guide 8 can also be attached to and detached from the base plate 1. In this case, the return ball guide 8 can be installed on the opposite side of the net 13 by fitting the return ball guide 8 in the same arc shape on the inverted base plate 1 by bending it in the opposite direction.

[Embodiment 2] FIG. 4 shows a base plate 1 and a return ball guide 8 of a return ball device according to the first embodiment.
Is a table tennis practice return ball device integrally formed symmetrically with respect to the center line of the square notch 4 and the notch 5 (vertically symmetric in the drawing), and a return ball guide 8 is provided on the base plate 1. It is fitted in the groove of the guide guide 14 having a concave cross section.

In this example, the planar shape of the base plate 1 'is bilaterally symmetrical with respect to the center line of the square notch 4 and the notch 5, as shown in the figure, that is, an inverted trapezoidal shape when viewed from above the side. The other shapes and structures are the same as those of the base plate 1.

Therefore, if one return ball device is attached to the net support, return ball guides 8 can be installed on both sides of the net 13 as shown in FIG.

[0027]

The return ball device according to the present invention is connected to a net 13 as shown in FIG.
If the ball is attached to both sides of the foreside, the ball hit by the net 13 at the time of driving practice in the foreside cross hitting is rotated in the lower left direction, so the net 13
Rolls vigorously to the left along
5 and along the inner surface of the return ball guide 8 as shown by the arrow in FIG. Come back to hand.

At this time, even if the ball running up on the base plate 1 does not have much momentum, the ball does not stop on the base plate 1 but falls in the hands of the trainee as indicated by the arrow due to the inward slope of the base plate 1. Come back.

In the case of practicing cross-hit driving on the back side, the return ball device may be attached to the net support on the opposite side (the right side in FIG. 5) of the table tennis table.

[0030]

According to the present invention, when practicing a cross-hit drive on the foreside or backside, the hitting ball caught on the net does not fall down to the side of the table tennis table and returns naturally to the hand, so the training efficiency is improved. Is greatly improved.

Also, when practicing with a large number of table tennis tables arranged side by side, it is necessary to pick up the balls in a hurry because the hit ball caught on the net does not fall down to the side of the table tennis table and falls under the adjacent table tennis table. No danger and fatigue is greatly reduced.

Further, if the base plate and the return ball guide are detachable, and the return ball guide is formed in a flat plate shape that can be bent on either side, both sides can be effectively overlapped. Requires less space for storage and transportation. Therefore, the utility value of the present invention is great,
It has very high industrial applicability.

[Brief description of the drawings]

FIG. 1 is a perspective view of a first embodiment of the present invention.

FIG. 2 is a plan view of the first embodiment of the present invention.

FIG. 3 is a front view of the first embodiment of the present invention.

FIG. 4 is a plan view of a second embodiment of the present invention.

FIG. 5 is a plan view showing a state where the second embodiment of the present invention is installed on a table tennis table.

[Explanation of symbols]

 1 Base Plate 2 Right Side 3 Knife Edge 4 Square Notch 5 Round Notch at Back 6 Fixing Hole 7 Fitting 8 Return Ball Guide 9 Projection 10 Table Tennis Table 11 Clip Base 12 Pole 13 Net 14 Guide Guide

Claims (4)

[Claims] 1. A base plate having a downward slope extending from a pole side of a net attached to a table tennis table to an upper surface of a side edge of the table tennis table, and a substantially semicircular inwardly provided in a plan view provided on the upper surface of the base plate. A return ball guide in which one end of the arc touches the net at a position substantially above the side edge of the table tennis table, and the other end linearly extends toward the center of the outer end of the table tennis table, and the base plate is a pole of the table tennis table or the net. Or a table tennis practice return ball device comprising a fixing means for fixing to a clip base. 2. The table tennis practice returning ball device according to claim 1, wherein the base plate and the returning ball guide are detachable. 3. The base plate can be fixed to the opposite side across the net by turning over, and the return ball guide is made of flexible plastic and can turn over an arc. The described return ball device for table tennis practice. 4. The return ball device for table tennis practice according to claim 1, wherein the base plate and the return ball guide are integrally formed symmetrically with respect to the net with respect to the net.