JPH084663B2 - Hanging equipment used for large space structures - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION << Industrial Application Field >> The present invention is used for a large space structure capable of suspending a speaker, a lighting fixture and the like according to various events in the large space structure. Regarding hanging equipment.

<Prior art> Conventionally, lighting fixtures, speakers, and the like have been fixed in advance to a frame such as a beam forming a large space structure or to the ceiling.

In addition, for lighting equipment or speakers required for some entertainment, scaffolding was combined with these mounting devices each time, and work was performed to attach and detach them before and after the entertainment.

<Problems to be solved by the invention> Recently, in order to efficiently use large space structures, the roof is made to be a retractable roof, or the output capacity of the speaker and its performance or various lighting fixtures are selected according to the event. It has become an issue to install these various devices easily, quickly and efficiently, such as installing and installing not only these lighting devices and speakers but also a video device at an appropriate height.

However, it is not possible to prepare scaffolds for installing speakers, lighting equipment, video equipment, etc. on the frames and ceilings that make up large space structures and ordering the mounting brackets one by one as in the past. I had to say that it was significantly incompatible with the above request.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a hanger used for a large space structure in which various event instruments can be easily hung at a desired height position. To provide.

<< Means for Solving the Problem >> The suspending tool used for the large space structure according to the present invention to achieve the above object is a roller for guiding the wire to the frame constituting the large space structure. The pulleys are arranged at intervals, and the pulleys are mounted in the same direction as the alignment direction and at an arbitrary interval on the lower side thereof, and the wire is guided in the alignment direction by the rollers, and the original direction is obtained through the pulleys at the required positions. The wire is laid in the original direction so that it is placed on the upper surface of the pulley as it is, and at least one end of the wire is wound around a winder such as a winch,
The wire portion extending between the pulley and the middle of the pulley is characterized in that the wire portion is inserted into a tube for suspending an instrument having guide rollers for the wire at both ends.

<Working> The wire can be unwound and wound by rotating the winder that winds the end of the wire. With the unwinding and winding of the wire, the wire moves in the unwinding and unwinding direction while being guided by the roller and the pulley. At that time,
The amount of slack in the wire portion between the pulleys changes depending on the amount of unwinding or unwinding of the wire. If this amount of slack becomes large, the bottom part of the wire where the wire is slack will descend toward the floor. When the wire is rewound by the winder to reduce the amount of slack between the pulleys, the slack part rises toward the top of the large space structure, and the bottom of the slack part of the wire becomes higher. .

The part where the wire between the pulley and the pulley is slack is "U" -shaped if it remains as it is. Hanging heavy lighting equipment, speakers, etc. at the bottom of the U-shape. It becomes a natural situation, and this limits the range of suspension. Therefore, a tube for suspending the equipment is provided between the pulleys, and the wire passes through this tube. The wire can be smoothly unwound and unwound while being guided by the rollers at both ends of the tube. At the same time, the looseness of the wire between the pulleys can be kept rectangular.

<Example> Hereinafter, a preferred example of the present invention will be described in detail with reference to the drawings.

FIG. 1 shows a part of a large space structure constituted by arch beams 1. Rollers 3 are rotatably mounted on the upper portion 2 of the arch beams 1 at regular intervals, and further below. Pulleys 5 are suspended and fixed to the flange 4 at regular intervals in accordance with the guide direction of the roller 3.

The roller 3 and the pulley 5 are respectively provided at both ends of the roller 3 and the pulley 5, that is, at the top and bottom of the arch beam 1.
An inversion pulley 6 for inverting the wire is arranged at a position where the wire becomes an intermediate level, and winders 7, 7 are installed at the bottom of the arch beam 1. This winder
The wire 8 unwound from one of 7, 7 is first wound around the reverse pulley 6 at the bottom of the arch beam 1, and then the roller 7
To be placed on the rollers 3 one after another according to the guide directions of the rollers 3 and lead out toward the top of the arch beam 1, and at the top of the arch beam 1, another pulley for reversing. When the guide direction is reversed to the bottom of the arch beam 1, it is passed over the pulley 5 as it is and passed through another winder 7 at the bottom of the arch beam 1. The end is wrapped around.

The amount of slack of the wire 8 located between the pulley 5 can be quickly changed by unwinding and rewinding the two winders 7, 7 at the same time.

As described above, the winding state of the wire 8 is schematically shown in FIG. 1. A part of the wire 8 extending between the pulley 5 and the pulley 5 is U-shaped when the wire is unwound from the winder 7. It is difficult to attach equipment for various events between pulleys 5-5.

Therefore, in order to eliminate such a problem, the suspender unit 9 as shown in FIG. 2 is mounted between the pulleys 5-5.

2 (a) and 2 (b) show the details of the suspender unit 9, and the suspender unit 9 has an inner pipe 11 inserted in an outer pipe 10 so as to extend and contract. Further, the outer pipe 10 and the inner pipe 11 are drawn at the same position on the outer peripheral surface with a position indicating mark 12 by a paint or the like, and the expansion and contraction amount of the inner pipe 11 and the rotation angle thereof are aligned with each other. I try to match with 11. Inner tube 11
Once you have decided the amount of expansion / contraction of the outer tube 10
A through hole penetrating to the inner pipe 11 is formed on the side face of the inner pipe 11, and a nut 14 is fixed to the surface of the outer pipe 10 together with the reinforcing plate 13 by welding or the like in concentric alignment with the through hole. If the fixing bolt 15 is screwed into the nut 14, the fixing bolt 15 penetrates the outer tube 10,
The tip thereof contacts the side surface of the inner pipe 11, and the inner pipe 11 is strongly pressed to integrally fix and fix the outer pipe 10 and the inner pipe 11.

Furthermore, the suspender units 9 are connected to both ends of the suspender unit 9, that is, the exposed outer ends of the outer pipe 10 and the inner pipe 11, and the wire 8 is provided inside the outer pipe 10 and the inner pipe 11. Frames 16a and 16b for guiding and inserting are provided.
The a is fixed to the end of the inner pipe 11, and the framework 16b is fixed to the end of the outer pipe 10. In the frameworks 16a and 16b, two parallel projecting plate-like plates are formed so as to project along the axial direction of the lifting device unit 9, and the width of the framework 16b is such that the framework 16b fits on both outer sides of the framework 16a. It is configured. The other structure is exactly the same and is as shown in FIG. 2 (b).

That is, the framework 16a will be described.
A pair of upper and lower guide rollers 17 are axially attached to the upper and lower sides of the base of the frame, and a hole for connecting with the frame 16b is opened at the tip of the frame 16a. A screw is cut at its tip, a washer and a nut are screwed into the threaded portion, and the nut screwed to fix the connecting rod 18 to the frame 16a is fixed by a split pin 19. Pulley 5-5
The portion of the wire 8 passing therethrough passes between the guide rollers 17 and 17 of the one frame 16b of the suspension unit 9 and passes between the guide rollers 17 and 17 of the other frame 16a. This is shown in FIG. An overall view of this state is as shown in FIG. Pulley 5 and pulley 5
The suspender unit 9 is located between the wires 8 which are loosened between the two, and the wire 8 hangs downward from the pulley 5 so that the wire 8 passes through the suspender unit 9 and its side shape is just the pulley 5.
It has a rectangular shape that moves back and forth between the sling unit 9 and the sling unit 9. Therefore, the portion between the pulley 5 and the pulley 5 can be kept substantially horizontal by the suspender unit 9. In terms of the size of the suspension unit 9, for example, its diameter is about 150 mm and its length is about 10 to 15 m.
Therefore, it is possible to suspend various appliances in the middle of the suspender unit 9. When the winder 7 is rotationally driven in such a state, the wire 8 is unwound or rewound, and the portion of the wire 8 that hangs downward from the pulley 5 is located below the arch beam 1. Move the up and down, but there is a fear that the height will vary. Therefore, although the state as shown in FIG. 4 may be maintained, as shown in FIG. 5, the frame 16a and the frame 16b at the respective ends of the suspender unit 9 are connected in series by connecting rods 18 to each other. You may.

A ring-shaped hanging fitting 20 is hung around the hanging unit 9, a wire rope 21 is hooked at the tip of the hanging fitting 20, and a speaker 22 is hung at the lower end of the wire rope 21. When the wire 8 is wound by the winder 7,
Since the end portions of the hanging unit 9 are connected by the connecting rods 18, the respective hanging units 9 move up and down uniformly. In this way, the hanging height of the speaker 22 can be adjusted.

<< Effects of the Invention >> As described in detail above, according to the suspending tool used for the large space structure according to the present invention, the rollers for guiding the wires to the frame forming the large space structure are arranged at regular intervals. Since it is arranged, the wire can be smoothly guided in the moving direction. Then, pulleys are attached in the same direction as the alignment direction of the rollers, and at an arbitrary interval on the lower side thereof, and the wire having the ends wound around a winder such as a winch is guided and supported by the rollers, and this wire is supported. At the above-mentioned desired roller position, it is installed in a pulley shape while being reversed to the original position and fixed as it is or wound on another winder, so the winder is rewound or wound up. By doing so, it is possible to loosen the portion of the wire that runs between the pulleys and at the same time adjust the amount of slack freely.

In addition, the wire portion that spans between the pulley and pulley is provided with a tube for suspending equipment that has wire guide rollers at both ends, and the wire guides both ends of the tube when passing through the inside of this tube. It is smoothly guided by the roller in the direction of slack, and the part of the wire that runs between the pulley and pulley can be fixed in a constant straight line by the tube for hanging the equipment, so it can be used for events such as lighting equipment, speakers or video equipment. The device can be easily hung. It is also possible to adjust the take-up device and smoothly adjust the hanging height. That is, in this way, it is possible to suspend a large number of appliances with a single wire, and at the same time, it is possible to simultaneously select the mounting heights of a large number of appliances with a small number of winding devices. It is also possible to adjust the mounting height of the device in units of the constituent frames. Since the winder can be controlled remotely, such as by radio control, it is possible to control the winder in each large space structure at a single location, making it easy to handle large space structures for a variety of applications. There is an effect that can be made.

[Brief description of drawings]

FIG. 1 is a side view showing a basic wire rope running state of a hanging device according to the present invention, FIG. 2 is a perspective view showing a hanging device unit, and FIG. 3 is a state in which a wire is inserted through the hanging device unit. FIG. 4 is a side view showing the overall configuration when the sling unit is attached to the wire, and FIG. 5 is a side view showing the state when the sling units are connected to each other. is there. 1 ... Arch beam, 2 ... Web 3 ... Roller, 4 ... Lower flange 5 ... Pulley, 6 ... Reversing pulley 7 ... Winder, 8 ... Wire 9 ... Lifting unit, 10 …… Outer tube 11 …… Inner tube, 12 …… Position mark 13 …… Reinforcement plate, 14 …… Nut 15 …… Fixing bolt, 16 …… Frame 17 …… Guide roller, 18 …… Connecting rod 19… … Split pin, 20 …… Hanging fitting 21 …… Wire rope, 22 …… Speaker

Claims (1)

[Claims] 1. Rollers for guiding wires to bridges constituting a large space structure are arranged at regular intervals, and pulleys are mounted in the same direction as the alignment direction and below the rollers at arbitrary intervals. , The wire is guided in the alignment direction by the roller, inverted in the original direction via a pulley at a required position, and laid in the original direction so that it is placed on the upper surface of the pulley as it is. At least one of the ends of the wire is wound around a winder such as a winch, and the wire portion extending between the pulley and the pulley is a tube for hanging a device having guide rollers for the wire at both ends. A hanger used for large space structures characterized by being inserted.