JPH0418594Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] The present invention relates to a netting device for tennis, volleyball, etc. It has a particularly simple structure and can be provided at low cost, and it is extremely easy to work with netting and removing the net. This invention relates to a netting device that is easy and safe.

[Conventional technology]

Various netting devices for tennis, volleyball, etc. have been provided in the past, and for example, the applicant of the present application has provided Japanese Utility Model Publication No. 58-45740.

In all of these, the wire supporting the net is wound around a drum to tension the net, and a ratchet mechanism or the like is utilized.

For this reason, the structure is complicated and there is a drawback that it cannot be provided at low cost.

[Problems to be solved by the invention] The present invention eliminates the drawbacks of the above-mentioned prior art, and provides a netting device that is simple and inexpensive in structure, and allows extremely easy and safe netting and removal work. This is what we are trying to provide.

[Means for solving problems]

In order to solve the above problems, the present invention rotates the upper end of the hooking rod, which has an appropriate number of hooking parts for the wire end of the net, at an appropriate intermediate position to the upper position of the net's support pole. It can be fixed freely. Further, a hooking rod fixing portion for fixing the hooking rod is provided at a lower position on the support pole. Further, a wire engaging portion is provided at the upper end of the support pole.

The above-mentioned hooking portion may be one on which the wire end of the net is directly hooked, or may be one on which the wire end of the net is hooked via a hook or the like.

[Effect]

According to the present invention having the above-mentioned structure, when the net is to be stretched, the hooking rod is first rotated upward to an appropriate position. Then, the support wire of the net is engaged with the wire engaging part at the upper end of the support pole, and the wire end is set at a suitable position in the middle of the hooking rod, among the hooking parts formed in an appropriate number. As will be described later, the net is hooked onto an appropriate hook portion selected by taking into consideration the tension of the net. At this point,
The net is still in a slack state.

Next, the hooking rod is rotated downward, and the net is gradually stretched as the hook is rotated. Then, when the hooking rod is positioned downward, the net is completely tensioned. In addition, when rotating the hanging rod, if force is applied to the lower part of the hanging rod, a small force is required due to the principle of leverage.

Finally, the hooking rod is fixed to the hooking rod fixing part provided at the lower part of the support pole, and the net is kept completely tensioned.

In addition, the more the end of the support wire is hooked to the hook part provided at the lower position than the hook part provided at the upper position of the hanging rod, the farther the support wire of the net is pulled. become longer. Therefore, the tension of the net can be freely adjusted depending on which hook part the end of the support wire is hooked onto. Furthermore, even if the support wire of the net stretches due to long-term use, it can be used without any problem.

Further, when removing the net, the procedure for attaching the net can be completely reversed.

〔Example〕

In the drawing, a is a support pole of the net, and b is a hook rod.

The support pole a is provided at its upper end with a wire engaging portion 2 for engaging the support wire 1 of the net.
In the case of the embodiment shown in FIGS. 1 to 4, the wire engaging portion 2 includes a pulley 4 having a concave groove 3 on the outer peripheral surface.
is rotatably supported by a pin 5.

The hooking rod b has an appropriate number of hooking portions 6, on which the support wire ends 1a of the net are hooked directly or via hooks, etc., at appropriate intermediate positions. The upper end of the hooking rod b is rotatably fixed to the upper position of the support pole a.

In the case of the embodiment shown in FIGS. 1 and 2, the hooking rod b is configured such that a part of the handle 7 provided at the lower end thereof is sandwiched and fixed by both opposing rods 8, 8a.

As shown in FIGS. 1 and 2, holes 10, into which bolts 9 are inserted, are provided in both opposing rods 8, 8a.
10a are provided in appropriate numbers at appropriate positions.
That is, the bolt 9 is inserted into the hole 10, 10a at an appropriate position among the holes 10, 10a, and is further fixed with a nut 11. Then, these are connected so that the support wire end 1a of the net is S
It constitutes a hook portion 6 that can be hooked via a hook 12. As will be described later, the fixing position of the bolt 9, that is, the holes 10 and 10a into which it is inserted and fixed, can be changed as appropriate during use.

Furthermore, shafts 13 and 13a are provided protrudingly on the outside of the upper end portions of both of the opposing rods 8 and 8a, respectively.
3 and 13a are respectively inserted and supported into holes 15 and 15a of a bearing 14 provided at an upper position of the support pole a, and are rotatably fixed.

In the embodiment shown in FIGS. 3 and 4, the hooking rod b is constructed in the shape of a rod. Then, as a hook portion 6 to which the support wire end 1a of the net is directly hooked, L is placed at an appropriate position in the middle of the hook rod b.
A suitable number of letter-shaped hooks 16 are provided protrudingly.

Furthermore, a hole 17 is provided at the upper end of the hooking rod b.
A shaft 18 is inserted and fixed into the hole 17 and holes 15, 15a of a bearing 14 provided at an upper position of the support pole a, and the upper end of the hook rod b is rotatably fixed. ing.

Furthermore, in the present invention, a hooking rod fixing part 19 for fixing the hooking rod b is provided at the lower part of the support pole a.

In the embodiment shown in FIGS. 1 and 2, holes 20, 20a are provided at the lower ends of both opposing rods 8, 8a. As the hooking rod fixing part 19, the support pole a has a bracket 22 having holes 21, 21a that fit into the holes 20, 20a when the hooking rod b is rotated and positioned downward. is provided. That is, by inserting the bolts 23 into the holes 20, 20a and the holes 21, 21a and fixing them with the nuts 24, the hooking rod b
will be fixed.

As in the case of the embodiment shown in FIGS. 3 and 4,
A hole 25 is provided in the lower part of the hooking rod b, and a bracket 22 is provided in the support pole a.

According to the present invention having the above structure, when the net is to be stretched, the hooking rod b is first rotated upward to the appropriate position as shown by the dashed-dotted line in FIG. 1 or 3. Then, the support wire 1 of the net is engaged with the wire engaging portion 2 at the upper end of the support pole a, that is, the concave groove 3 of the pulley 4, and the wire end 1a
The net is hooked onto a suitable hook part 6 selected in consideration of the tension of the net, as will be described later, among the hook parts 6 formed on the above-mentioned hook rod b. At this point, the network is still in a loose state.

That is, in the case of the embodiment shown in FIGS. 1 and 2, after the bolt 9 is inserted into the appropriate hole 10, 10a of the hook b and fixed with the nut 11, the bolt 9 is attached to support the net. The wire end 1a is hooked through an S-shaped hook 12.

In the embodiment shown in FIGS. 3 and 4, the support wire end 1a of the net is directly hooked onto a suitable L-shaped hook 16 of the hooking rod b.

Next, the hooking rod b is rotated downward, and the net is gradually stretched in accordance with this rotation. Then, when the hooking rod b is positioned downward, the net is completely tensioned. In addition, when rotating the hooking rod b, if a force is applied to the lower part of the hooking rod b, a small force is required due to the principle of leverage.

Finally, the hooking rod b is fixed to the hooking rod fixing part 19 provided at the lower part of the support pole a, and the net is kept completely tensioned.

That is, in the case of the embodiment shown in FIGS. 1 and 2, the bolts are inserted into the holes 20, 20a provided at the lower ends of the matching opposite rods 8, 8a and the holes 21, 21a of the bracket 22 of the support pole a. 23 is inserted and fixed with a nut 24, thereby fixing the hooking rod b.

Also, in the case shown in FIGS. 3 and 4, the hooking rod b is similarly secured by the bolt 23 and nut 24.
is fixed.

Note that the more the support wire end 1a is hooked to the hook portion 6 provided at the lower position than the hook portion 6 provided at the upper position of the hook rod b, the more the support wire 1 of the net is pulled. The distance that can be stretched becomes longer. Therefore, the tension of the net can be freely adjusted depending on which hook part 6 the support wire end 1a is hooked onto.
Therefore, even if the support wire 1 of the net stretches due to long-term use, it can be used without any problem.

That is, in the case of the embodiment shown in FIGS.
0a, or in the case of the embodiment shown in FIGS. 3 and 4, a hook rod b for hooking the support wire end 1a
Depending on which L-shaped hook 16 on which the net is hooked, the tension of the net can be freely adjusted.

Furthermore, when removing the net, the netting procedure described above can be completely reversed.

[Effect of idea]

As mentioned above, the present invention is based on the net support pole,
Since it is composed of a hooking rod and a hooking rod fixing part, there is no need to use a ratchet mechanism or the like, so that the structure is simple and can be provided at low cost.

Furthermore, the present invention allows the netting work and the netting removal work as described above, which makes the work extremely easy, and the work is extremely safe without any danger. It is something.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; Fig. 1 is a front view, Fig. 2 is a side view thereof, Fig. 3 is a front view showing another embodiment, and Fig. 4 is a side view thereof. . DESCRIPTION OF SYMBOLS 1...Support wire, 1a...Support wire end, 2...Wire engagement part, 6...Hook part,
19...Hooking rod fixing part, a...Support pole,
b...Hooking rod.

Claims (1)

[Scope of utility model registration request] A net support pole having a wire engagement part at the upper end, the upper end rotatably fixed at the upper position, and a hook having an appropriate number of hook parts for the ends of the support wire of the net at appropriate positions in the middle. A net tensioning device for tennis, volleyball, etc., comprising a hanging rod and a hanging rod fixing part provided at a lower position of the support pole and fixing the hanging rod along the support pole. .