JPH08191910A - Tightener of wire for spreading at net for tennis and the like and erecting device of strut of net for tennis and the like - Google Patents

Abstract

PURPOSE: To provide a tightener of a wire for spreading of a net for tennis, etc., which safely, rapidly and surely tightens a wire for spreading and an erecting device of a strut of the net for tennis, etc., which extremely easily and surely erects the strut. CONSTITUTION: This tightener is formed with locking holes 4 at every fixed pitch along the longitudinal direction of the strut 1 made of a pipe on which the net is spreadable. A tightening pipe 5 having a detaining piece 6 for the wire is freely liftably fitted at the front end of the strut 1 and a locking pole 9 adapted freely lockably in the locking holes 4 is freely loosely movably held via an energizing member 11 into this tightening pipe 5. This erecting device consists of a tensile body 12 with a threaded part 13 made freely insertable to the strut 1 made of the pipe and a fixing plate 15 having a fitting hole 16 to be fitted and fixed with the tensile body 12. A required number of projecting pieces 17 are formed on the rear surface of the fixing plate 15.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tensioning device for a tensioning wire in a tennis net, a ballet ball net, and the like, and to a device for setting up a column thereof.

[0002]

2. Description of the Related Art Conventionally, as a tensioning device for a tensioning wire in a tennis net or the like, a winding device attached to a required support, that is, a winding device having a small diameter. It is known that the body is designed to be rotated by a warm gear mechanism. Then, such a winder uses the required handle to move the
While the winding cylinder is being rotated by a mugear mechanism, the free end of the tensioning wire is wound around the winding cylinder to make it tense, and a net is stretched between predetermined columns.

By the way, in the conventional example configured as described above, while the tensioning wire can be surely tensioned, the free end of the tensioning wire is always wound up and tensioned, so that the operation is difficult. Not only is it very troublesome and troublesome,
With use, the free end gradually causes metal fatigue and is damaged or easily scattered, and eventually has a problem of being injured when the net is stretched. In some cases, an accident such as a finger being caught in the winder may be caused.

Further, as a device for setting up a support for tensioning a tennis net or the like, a device for installation disclosed by the present inventor, that is, a threaded pile body that can be freely inserted into a pipe support, It is known that a long standing plate having a ring piece through which the pile can be inserted and a fastening pin that can be inserted into a pin hole formed at a free end of the standing plate are inserted. (See Japanese Utility Model Laid-Open No. 5-20771).
And, in the conventional example configured as described above, the pile body is screwed into both sides of the predetermined coat and planted, and the ring piece of the stand plate is loosely fitted to the pile body while the upper portion is moved upward. While fitting the pipe support pillar to the pile body, fit it in the gap between the inner peripheral surface of the ring piece and the outer peripheral surface of the pile body to stand upright, then
The fixing plate is fixed to the ground via a fixing pin.

By the way, in the conventional example constructed as described above, while the pillar can be reliably installed, the installation plate is fixed to the ground with the fixing pin, so that the fixing is likely to be insufficient. Not only that, the presence of the fastening pin itself tends to be an obstacle when walking. In addition, the structure is complicated, and the manufacturing thereof is troublesome, and the cost is easily increased.

The present invention solves the conventional problems all at once,
A tensioning device for a tensioning wire in a tennis net or the like that can tension the tensioning wire safely, quickly and surely, and a strut can be installed very easily and reliably. The present invention is intended to provide a support device for setting up a strut for a tennis net or the like which has a very compact structure.

[0007]

That is, according to the first invention of this application, the lock holes 4 are formed at constant pitches along the longitudinal direction of the pipe support 1 on which the required net 19 can be stretched. At the same time, a tension tube 5 having a wire hooking piece 6 at the tip thereof is fitted to the support column 1 so as to be able to move up and down, and the lock tube is lockable in the lock hole 4 inside the tension tube 5. The gist is that the lever 9 is movably held via the urging member 11.

The second invention of this application is a pile body 12 with a screw portion 13 which can be freely inserted into a required pipe strut 1.
And a fixing plate 15 having a fitting hole 16 for fitting and fixing the pile body 12, and a required number of projecting pieces 17 are formed on the lower surface of the fixing plate 15. Is.

[0009]

The tensioning device according to the present invention comprises the tensioning wire-18.
The tension tube 5 is lowered along the support column 1 while the free end of the tension wire 5 is hooked on the hooking piece 6, and the tensioning wire 18 is properly pulled, and then the lock ball 9 is moved to the required lock hole 4 The tension tube 5 is fixed to the column 1 by locking it to
The net 19 can always be tensioned.

Further, in the erection device according to the present invention, the pile plate 12 is screwed into both sides of a predetermined coat while the fixing plate 15 is fitted into each pile body 12 through the fitting hole 16. The protrusion 17 of the fixing plate 15 can be bitten into the ground to be hooked, and then the pillar 1 can be fitted to the pile body 12 from above so that the pillar 1 can be reliably erected.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below by taking the tennis net shown in the drawings as an example. Reference numeral 1 is a metal pipe support having a required height, 2 is a guide roller attached to the top of the support 1 through a fitting member 3, and 4 is a constant pitch in the middle of the support 1 along the longitudinal direction. Lock holes 5 are formed for each, 5 is a tension pipe fitted to the support 1 so as to be movable up and down, 6 is the tension pipe 5
A hook-shaped hooking piece for a tension wire attached to the upper end of the tension tube 5, and a substantially U-shaped operating handle pivotally attached to the lower end of the tension tube 5. Reference numeral 8 is a cylindrical lock ball holder that is attached to approximately the middle of the tension tube 5 in a communicating manner, and 9 is a lock ball that is held in the holder 8 so as to be free to move.
Is a stop bolt screwed to the holding body 8, and 11 is the stop bolt 1 for urging the lock ball 9 inward.
It is a spring interposed between 0 and the lock ball 9.

Reference numeral 12 denotes a metal pile body having a required length which can be inserted into the lower end portion of the pillar 1, 13 denotes a threaded portion formed at the tip of the sharpened pile body 12, 22 Is a ring-shaped contact plate fixed to the outer periphery of the pile body 12 so as to be located above the screw portion 13, and 14 is a quadrangular spanner hook formed on the upper end portion of the pile body 12. Reference numeral 15 is a rectangular metal fixing plate, and 16 is the fixing plate 1 for fitting the pile body 12.
5 is a fitting hole formed from one end, and 23 is the fitting hole 16
Earth holes formed in the fixing plate 15 to be located on both sides of the
Reference numeral 7 is a downwardly protruding projecting piece formed at the four corners of the fixing plate 15. Reference numeral 18 is a tension wire for tensioning the tennis net 19, and 20 is a ring-shaped hooking portion formed at both ends of the tension wire 18, respectively. In addition, 21 indicates a box wrench with a handle.

Next, the operation of the embodiment configured as described above will be described. First, while fixing the fixing plate 15 to each pile body 12 through the fitting hole 16, the pile body 12 is screwed into both sides of a predetermined coat with the box wrench 21 and then vertically planted. , The protrusions 17 are hooked by digging into the ground. At this time, the earth and sand rising due to the screwing of the pile body 12 is discharged to the surface of the earth through the earth discharging hole 23. Next, the pillar 1 is fitted to the pile body 12 from above so that the pillar 1 is fitted to the pile body 12 and set up.

When the installation of the two-sided column 1 is completed, one end of the tensioning wire-18 is hooked to one column (not shown) with a hooking piece through a hooking portion (not shown), and The hooking portion 20 at the other end is hooked on the hooking piece 6 of the tension tube 5 fitted to the other strut 1. After that, handle 7
The tension pipe 5 is moved downward along the support column 1 through the cable, the tensioning wire 18 is properly pulled, and then the lock ball 9 is locked in the required lock hole 4, whereby the tension pipe 5 is supported. 1 and fix the net 19 in a tensioned state.

Although the above embodiment has been described with reference to a tennis net, the present invention is not limited to this.
The present invention can be applied to other ball game equipment such as a net for a le and a badminton net, and the installation device can also be applied to an installation for a pole for a carp streamer. Further, although the fixing plate 15 has a square shape in the above-described embodiment, the fixing plate 15 is not limited to this and may have a known shape such as a triangle, a circle, or an ellipse.

[0016]

Since the first invention of the present application is constructed as described above, the tension pipe 5 is supported by the strut 1 while the free end of the tensioning wire 18 is hooked on the hooking piece 6. The net 19 can be kept safe and fast at all times by an extremely simple operation in which the lock wire 9 is locked in the required lock hole 4 after the tension wire 18 has been properly tensioned. In addition, it is possible to surely stretch it in a tensioned state.

Since the second invention of the present application is constructed as described above, the pile body 12 is fitted with the predetermined plate while the fixing plate 15 is fitted into the pile body 12 through the fitting hole 16. -It is extremely simple to screw it on both sides of the gut and plant it, and to hook it by biting the protruding piece 17 into the ground, and then fitting the pillar 1 to the pile body 12 from above from the outside. The struts 1 can always be installed extremely easily and surely by operation. In addition, the structure is simple and compact compared to the conventional example,
It can be easily manufactured.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of the present invention.

FIG. 2 is a partially enlarged sectional view showing a usage state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Support 4 Lock hole 5 Tension pipe 6 Locking piece 9 Lock ball 11 Spring 12 Pile body 13 Screw part 15 Fixing plate 16 Fitting hole 17 Projection piece 18 Stretching wire-19 Net

Claims (2)

[Claims] 1. A lock hole 4 is formed at a constant pitch along a longitudinal direction of a pipe support 1 on which a required net 19 can be stretched freely, and the support 1 is provided with a wire hook at its tip. A tension tube 5 having a stop piece 6 is fitted in a vertically movable manner, and a lock ball 9 lockable in a lock hole 4 is held in the tension tube 5 via an urging member 11 so as to be freely movable. A tensioning device for a tensioning wire in a tennis net or the like, characterized by being squeezed. 2. A pile body 12 with a threaded portion 13 that can be freely inserted into a required pipe strut 1, and a fixing plate 15 having a fitting hole 16 for fitting and fixing the pile body 12.
A device for setting up a column in a tennis net or the like, characterized in that a required number of projecting pieces 17 are formed on the lower surface of the fixing plate 15.