JPS6217099Y2 - - Google Patents

Description

[Detailed description of the invention] This invention provides a more effective net tensioning structure for tennis practice nets, in which the net is stretched almost vertically and players practice by hitting the ball against it, and it is easy to carry indoors and outdoors. This article relates to a tennis practice net with a unique twist.

Conventionally, a tennis practice net has been known as a simple tennis practice net, the main components of which are a ball hitting section having the net, a ball receiving section for catching and collecting the ball, etc. , Various proposals have been made in this regard.

By the way, conventional tennis practice nets have some functional problems, are heavy and difficult to handle, and have to be carried indoors and outdoors, which is essential for this type of tennis practice net. It also had the disadvantage that it was often forgotten, and once it was installed, it could not be moved.

Therefore, this invention aims to improve the ball impact absorption of the ball hitting part, which is the original function of a tennis practice net, and also provides a tennis practice net that has various features to make it easier to carry. be.

Hereinafter, specific embodiments of this invention will be described with reference to the drawings.

FIG. 1 is a front view of a tennis practice net according to this invention, and FIG. 2 is a side view of the same.

This tennis practice net is composed of a ball hitting part A that hits the ball, a ball receiving part B that receives and collects the ball that hits the ball hitting part A, and the like.

The ball hitting part A is almost completely filled with the net 2 against the gate-shaped frame pillar 1, which is constructed with the upper part tilted slightly forward.
is suspended. Furthermore, since the frame pillar 1 is gate-shaped,
It is composed of a top horizontal rod 3 and side rods 4, 4, which are connected to both ends of the top horizontal rod and stand upright.

On the other hand, the frame column 1 has side rods 4,
An auxiliary horizontal rod 5 is stretched horizontally over the width of the frame column 1 at a point where the frame 4 changes its slope from tilted forward to vertical.

Net 2 has these top horizontal rods 3 and auxiliary horizontal rods 5.
It has a structure that allows it to be hung only from the side rods (it is not connected to the side rods 4, 4, etc.), and its details are shown in Figures 3 and 4, which are enlarged cross-sectional side views of the main parts.
As shown in the figure.

That is, net suspension rings 6 are provided at appropriate intervals in the width direction of the top horizontal rod 3, and the nets 2 are attached to the net suspension rings 6.
The weft yarns are hooked and suspended, and the auxiliary horizontal rod 5 is also provided with a suspension ring 7, and the weft branched from the net 2 is suspended from the suspension ring 7.
It is suspended through. Note that weights 9, 9 are attached to the lower ends of the net 2 or the warp threads 8, 8 connected thereto.
In addition, there is a square passing bar 26 at the front and a round passing bar at the rear, sandwiching the side bars 4, 4 between the ball receiving portions B located relatively below the side bars 4, 4. 10, through which a net 2 hangs down, and the aforementioned weights 9, 9 of a certain weight are attached to the lower end of the net 2.

By the way, an important feature of this invention is that the side rods 4, 4 of the frame column 1 have a structure that can be bent forward or backward. This bending structure may be simply made of bolts, nuts, etc., but
FIG. 5 shows an example that has the advantage of being easy and quick to operate. That is, the side rods 4, 4 are pivotally connected by pins 11 to have a two-stage joint structure, upper and lower, and a set pipe 12 is slidably fitted around the outer periphery of the side rods 4, 4. Then, when the set pipe 12 is slid upward and the pin 11 is exposed, the side rod 4,
When the set pipe 12 is slid downward to cover the pin 11, the bending of the side rods 4, 4 is restricted due to the presence of the set pipe 12. It is fixed in an upright position. In addition, steps 13, 13 are provided on the side rods 4, 4 at the position of the set pipe 12 where the side rods 4, 4 are to be fixed in an upright state, and the lower end of the set pipe 12 is placed on these steps 13, 13. It is easy to operate if you do this.

Further, in order to train ball control during use, an appropriate target frame is formed on the net 2 by changing the color of the thread of the net 2, etc.

Next, the ball receiving part B is shown in FIG. 2, FIG. 6 which is a plan view of this part, and FIG. 7 which is a side view of this part.
As shown in the figure, from the side rods 4, 4, the underframe 1
4 and 14 are made to protrude forward like a human knee, and a ball receiving material 1 made of cloth or the like is placed on the upper surface
5, a cover material 16 is stretched on the front wall, and a hole 17 is made downward in the approximate center of the ball receiving material 15, and a ball guide tube 18 is communicated with the hole 17. Other port of bulb tube 18 (bulb outlet) 1
9 opened forward from the cover material 16. In addition, stays 20, 20 are installed between the side rods 4, 4 and the underframes 14, 14 as necessary.
The underframes 14, 14, the ball receiving material 15, and the cover material 16 are connected to each other by threads 21 or the like.

The above-mentioned ball striking part A and ball receiving part B are supported by a machine stand 22, and furthermore, casters 23, 23 with stoppers are attached below the machine stand 22 to enable free movement.

By the way, this tennis practice net having the above-mentioned configuration is used in the following manner.

8 and 9 are side views showing the used state and the stored state. First, in use, the set pipe 12 is operated to raise the side rods 4, 4 to an upright state. Then, he hits the ball 24 with a racket from the front and hits the net 2.
The ball that hits the net 2 falls onto the ball receiving material 15 due to the ball impact absorption effect as will be described later. The ball on the ball receiving material 15 passes through the hole 17 and is ejected from the ball ejecting port 19 of the ball guide tube 18 to the outside of the machine.

Next, after use, operate the set pipe 12 to bend the side rods 4, 4 forward (no need to remove the net 2) into a low position, and move it to the desired location while maintaining this position.

As described above, this invention consists of a ball striking part A in which the net 2 is suspended completely from the gate-shaped frame column 1, which is constructed with the upper part tilted slightly forward, and a portion of the frame column 1 corresponding to the knee that is stretched horizontally forward. This is a tennis practice net whose main components include a ball receiving part B with a cloth or the like stretched over the upper surface of the net. It has a structure in which it is suspended by an auxiliary horizontal rod 5 that extends diagonally upward at the rear at a slightly lower position and is stretched horizontally across the width of the frame column, and also stands upright on both sides of the gate-shaped frame column. This provides a tennis practice net having a structure in which side rods 4, 4 can be bent.

Therefore, first, since the side rods 4, 4 can be bent from the middle, the overall posture can be lowered when not in use, and when moving indoors or outdoors, it does not get stuck on a lintel or the like. Not only does this mean it can be easily moved to any location, but it can also be built taller overall.

In other words, in the past, due to this restriction, it was not possible to make a very large net, making it insufficient as a tennis practice net, but with this invention, the hitting surface of the net 2 can be made sufficiently wide. Can be done. Furthermore, since the bending operation of the side rods 4, 4 can be performed by sliding the set pipe 12 up and down, as described above, this operation is easy and quick.

Next, since the net 2 is suspended only from the top horizontal rod 3 and the auxiliary horizontal rod 5, and is not connected to the entire frame column 1 as in the conventional case, it is difficult for the ball 24 to hit the net 2. The ball 24 has good shock absorption properties, and the amount of rebound of the ball 24 is small. Therefore, there is no need for side nets or the like to prevent the ball 24 from flying away, as in the conventional case, and the amount of forward protrusion of the lower ball receiving member 15 can be reduced. This helps reduce the overall weight of the tennis practice net, ensuring lower costs and ease of movement. In addition, since the net 2 hangs down between the square transfer rod 26 and the round transfer rod 10,
Good shock absorption and return to original shape when the ball 24 hits the net 2. Note that the ball 24 that has fallen onto the ball receiving member 15 is stuck in the ball receiving portion 1.
5 itself has a structure in which it is inclined downward toward the hole 17 (see Figure 7), so it naturally rolls toward the hole 17, but it often jumps out due to its momentum, so it does not overlap with the cover material 16. This protrusion can be prevented by installing a ball stopper 25 having an L-shaped cross section as shown in the perspective view of FIG. 10 at the intersection. Further, by adjusting the weights 9, 9, the impact absorption of the ball 24 by the net 2 can be adjusted, so it goes without saying that the amount of repulsion can also be changed.

[Brief explanation of the drawing]

The drawings show a specific example of the tennis practice net according to this invention, and FIG. 1 is a front view, FIG. 2 is a side view, and FIGS. 3 and 4 are enlarged cross-sectional side views showing the net in a suspended state. Figure 5 is an enlarged sectional front view showing an example of the bent structure of the side rod, Figure 6 is a plan view of the ball receiving part, Figure 7 is a side view thereof, and Figure 8 shows the state in use. FIG. 9 is a side view showing the stored (moving) state, and FIG. 10 is a perspective view of the ball receiving part equipped with the ball stopper. Code, A...Ball striking part, B...Ball receiving part, 1...Frame column, 2...Net, 3...Top horizontal rod, 4...Side rod, 5...Auxiliary horizontal rod, 11...
Pin, 12...Set pipe, 25...Ball stop.

Claims (1)

[Scope of utility model registration request] The ball-hitting part has a net suspended all the way from a gate-shaped frame pillar built with the top slightly tilted forward, and the part corresponding to the knee of this frame pillar extends horizontally forward, and a cloth is stretched over the top surface. This is a tennis practice net consisting of a ball receiving part, which is attached to the top horizontal rod of a gate-shaped frame pillar, and a position slightly below the top horizontal rod, which extends rearward and diagonally upward, and extends horizontally to the width of the frame pillar. This net for tennis practice has a structure in which it is suspended by auxiliary horizontal rods that are stretched across, and a structure in which side rods standing upright on both sides of the gate-shaped frame pillars can be bent.