JP3021404B2 - Stage equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stage apparatus for storing and installing an acoustic reflector and the like.

[0002]

2. Description of the Related Art Conventional stage devices for storing and installing acoustic reflectors and the like can be roughly classified into a split type fly tower suspended storage type and a traveling type shelter stage depth type.

[0003] The suspended storage type in the split type fly tower is
As shown in FIG. 5, a front acoustic reflection plate 111 disposed behind the stage 110, a side acoustic reflection plate 112 disposed on the side of the stage 110, and a ceiling disposed above the stage 110. Acoustic reflection plate 113 and wire 114 from ceiling 115
The sound reflecting plates 111 to 113 are suspended via wires 114 when not in use (during storage).
Are individually lifted, so that these acoustic reflectors 111 to 113 can be stored in the fly tower 116 above the stage 110.

On the other hand, as shown in FIG. 6, the traveling type shelter at the back of the stage includes a front acoustic reflector 121 having a ceiling acoustic reflector 123a and a side acoustic reflector 122a, and a ceiling acoustic reflector 123b. Side acoustic reflector 122b
And side acoustic reflector 1 including ceiling acoustic reflector 123c
22c is mounted on a rail 124 connecting the front and the back of the stage 120 so as to be able to run, and can be stored by being moved to the rear of the stage 120 along the rail 124 when not in use. ing.

[0005]

In the conventional stage apparatus as described above, the acoustic reflecting plates 111 to 113,
Since it is difficult to efficiently air-condition the acoustic space surrounded by 121 to 123 with the air-conditioning equipment for the entire hall, if the air space in the acoustic space is to be reliably performed, the acoustic reflectors 111 to 113 and 121 are used. After installing ~ 123, air conditioning piping such as a duct had to be arranged, which was not only very troublesome but also hindered the arranged air conditioning piping.

[0006] Such a problem is not limited to the case of arranging air-conditioning pipes such as ducts, but also includes wiring such as water supply pipes connected to sprinklers and cables connected to electrical equipment such as lighting equipment and audio equipment. This also occurs in the case of arrangement.

[0007] In view of the above, an object of the present invention is to provide a stage apparatus in which piping, wiring, and the like can be easily arranged without obstruction.

[0008]

A stage apparatus according to a first aspect of the present invention for solving the above-mentioned problems is provided so as to be able to ascend and descend in a pit dug below a main floor of the stage. A lower floor plate capable of closing a hole formed in the stage main floor so as to communicate above the floor and the inside of the pit, and an upper floor plate disposed above the lower floor plate and capable of closing the hole,
A lower floor board elevating means for raising and lowering the lower floor board, an upper floor board elevating means for raising and lowering the upper floor board, and a lower end side is connected to the lower floor board, and an upper end side is connected to the upper floor board, and is vertically expandable and contractable. A front acoustic reflector, a lower end connected to the lower floor, an upper end connected to the upper floor, and a side acoustic reflector that is vertically expandable and contractable, and a ceiling acoustic reflector provided on a lower surface of the upper floor. A plate, one end of which is connected to an air-conditioning pipe disposed in the pit, and which is extendable from within the pit; and And an outlet to which the other end communicates.

A stage apparatus according to a second aspect of the present invention is provided in a pit dug below the main floor of the stage so as to be able to move up and down.
A lower floor plate capable of closing a hole formed in the stage main floor so as to communicate between the upper part of the stage main floor and the inside of the pit, and an upper floor plate disposed above the lower floor plate and capable of closing the hole, A lower floor board elevating means for raising and lowering the lower floor board, an upper floor board elevating means for raising and lowering the upper floor board, and a lower end side is connected to the lower floor board, and an upper end side is connected to the upper floor board, and is vertically expandable and contractable. A front acoustic reflector, a lower end connected to the lower floor, an upper end connected to the upper floor, and a side acoustic reflector that is vertically expandable and contractable, and a ceiling acoustic reflector provided on a lower surface of the upper floor. A plate, one end of which communicates with a water supply pipe disposed in the pit and provided in the pit, and a plurality of hoses which can be extended from the pit, and a plurality of hoses provided on the upper floor plate, Splice Edge Contact Characterized by comprising a class.

A stage apparatus according to a third aspect of the present invention is provided in a pit dug below the main floor of the stage so as to be able to move up and down.
A lower floor plate capable of closing a hole formed in the stage main floor so as to communicate between the upper part of the stage main floor and the inside of the pit, and an upper floor plate disposed above the lower floor plate and capable of closing the hole, A lower floor board elevating means for raising and lowering the lower floor board, an upper floor board elevating means for raising and lowering the upper floor board, and a lower end side is connected to the lower floor board, and an upper end side is connected to the upper floor board, and is vertically expandable and contractable. A front acoustic reflector, a lower end connected to the lower floor, an upper end connected to the upper floor, and a side acoustic reflector that is vertically expandable and contractable, and a ceiling acoustic reflector provided on a lower surface of the upper floor. A plate, a cable provided in the pit and extendable from within the pit, and a plurality of electrical equipment provided on the upper floor plate and communicating with the cable are provided.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a stage apparatus according to the present invention will be described with reference to FIGS. 1 is a partially cutaway perspective view at the time of installation, FIG. 2 is a partially cutaway perspective view at the time of storage, FIG. 3 is a schematic side view of a main part, and FIG. FIG.

As shown in FIGS. 1 and 2, a pit 101 is dug below a predetermined position of the stage main floor 100, and the stage is connected so that the inside of the pit 101 and the stage main floor 100 can be communicated. Hole 100a is formed in main floor 100. Inside the pit 101, the hole 1 of the floor 100
A lower floor panel 1 having a size capable of closing the 00a is provided. On both left and right sides of the pit 101, a plurality of screw shafts 2 whose axes are directed vertically are rotatably supported, and the screw shafts 2 are screwed to the side end portions of the lower floor plate 1 respectively. ing. The lower ends of the screw shafts 2 are respectively connected to a driving device 8 via a gear box 3, a shaft 4, a gear box 5, a coupling 6, a speed reducer 7, and the like.

That is, when the driving device 8 is operated, the screw shaft 2 rotates through the members 3 to 7 and the lower floor plate 1 is rotated.
That is, the position of the lower floor plate 1 can be switched between the position on the bottom surface of the pit 101 (at the time of storage) and the position where the hole 100a of the stage main floor 100 is closed (at the time of installation). It is.

As shown in FIG. 2, a plurality of guide cases 9 are provided on both sides in the left-right direction of the pit 101, and the guide cases 9 extend in the vertical direction. Inside these guide cases 9, counterweights 10 that can move up and down along the guide cases 9 are provided. Pulleys 11 are provided on the upper portions of the guide cases 9 respectively. These pulleys 11 have wires 1
Two are hung on each. One end of each of the wires 12 is connected to the left-right direction end of the lower floor plate 1, and the other end is connected to the counterweight 10.

That is, when the lower floor plate 1 rises, the wires 1
When the lower weight 1 descends along the guide case 9 through the counterweight 10 and the lower floor plate 1 descends, the counterweight 10 rises along the guide case 9 via the wire 12. This makes it possible to stabilize the lifting and lowering and stopping of the lower floor plate 1. In this embodiment, the screw shaft 2, the gear box 3, the shaft 4, the gear box 5, the coupling 6, the speed reducer 7, the driving device 8, the guide case 9, the counterweight 10, the pulley 11, the wire 1
2 and the like constitute a lower floor plate elevating means.

As shown in FIG. 1, a plurality of stopper devices 13 are provided on both ends in the front-rear direction of the lower floor plate 1, respectively. The lower floor plate 1 can be stably fixed and held at the position by being engaged with holes (not shown) formed at the peripheral edge of the hole 100a when the lower floor plate 1 is positioned at a position where the lower floor plate 1 is closed. Has become.

As shown in FIGS. 1 and 2, an upper floor plate 14 having the same shape as the lower floor plate 1 is provided above the lower floor plate 1. A plurality of extensible screw jacks 15 are provided on both sides of the upper surface of the lower floor plate 1 in the left-right direction, and the screw jacks 15 support the side ends of the upper floor plate 14 at the upper ends thereof. .

That is, the screw jack 15 can raise and lower the upper floor plate 14 as the lower floor plate 1 moves up and down, and can adjust the distance between the lower floor plate 1 and the upper floor plate 14 by expanding and contracting. It is like that.

As shown in FIGS. 1 and 2, guide rollers 16 are provided near the lower front corner of the upper floor plate 14, respectively.
Are engaged with guide posts 17 erected near the peripheral edge of the front corner of the hole 100a.

That is, the guide column 17 guides the upward and downward movement of the upper floor plate 14 via the guide roller 16. Thereby, the upper floor board 14 can move up and down stably without blurring. In this embodiment, the screw jack 15, the guide roller 16, the guide post 17, and the like constitute an upper floor plate elevating means.

As shown in FIG. 2, a plurality of stopper devices 18 are provided on both left and right ends of the upper floor plate 14, respectively. The upper floor plate 14 can be stably fixed and held in the position by engaging with the holes (not shown) formed in the peripheral edge of the hole 100a when the position is closed. Has become.

As shown in FIGS. 1 and 2, a lower front acoustic reflector 19b is provided on the rear side of the upper surface of the lower floor panel 1 so as to be slidable in the front-rear direction. Numeral 19 is divided into an upper front acoustic reflector 19a and a lower front acoustic reflector 19b so as to be able to expand and contract in the vertical direction, and can be slid. Side acoustic reflectors 20 are respectively provided upright on both left and right sides of the upper surface of the lower floor board 1, and the upper acoustic reflector 20a and the lower acoustic reflector 20a extend and contract in the vertical direction. It is divided into a reflection plate 20b and can be slid.

On the other hand, as shown in FIGS. 1 and 2, on the rear side of the lower surface of the lower floor panel 1, a lower front acoustic reflector 19b of the front acoustic reflector 19 is connected so as to be slidable in the front-rear direction. ing. The upper end of the upper acoustic reflection plate 20 a of the side acoustic reflection plate 20 is connected to both left and right sides of the lower surface of the upper floor plate 14. On the lower surface of the upper floor plate 14, a ceiling acoustic reflection plate 21 is provided.

That is, as the distance between the lower floor plate 1 and the upper floor plate 14 changes due to the expansion and contraction of the screw jack 15, the front acoustic reflection plate 19 and the side acoustic reflection plate 20 move between the lower floor plate 1 and the upper floor plate 14. The space between the lower floor panel 1 and the upper floor panel 14 can form an acoustic space between the lower floor panel 1 and the upper floor panel 14 together with the ceiling acoustic reflector 21 without leaving a gap. is there.

As shown in FIG. 3, on the right side of the bottom surface of the pit 101, a fixed duct 22 which is an air-conditioning pipe which communicates with an external air conditioner, and a fixed pipe 23 which is a water supply pipe which communicates with an external water supply device. And a cable box 25 accommodating a cable 24 for sound and illumination. On the other hand, on the right end side (or the left end side) of the upper floor plate 14, a fixed duct 27 connected to a plurality of outlets 26 provided at predetermined intervals on the lower surface of the upper floor plate 14, and a predetermined duct on the lower surface of the upper floor plate 14. A fixed pipe 29 connected to a plurality of sprinklers 28 provided at intervals of
A plurality of electric equipment (not shown) such as lighting equipment and sound equipment provided at a predetermined interval on the lower surface of the camera are provided.

As shown in FIGS.
27 are connected by an extendable telescopic duct 30 penetrating the lower floor plate 1, and the telescopic duct 30 is stabilized in shape by a guide wire 31 wound around a reel 32 so as to be capable of feeding and winding. Is planned. That is,
The telescopic duct 30 has one end connected to the fixed duct 22 and the other end connected to the fixed duct 27, and can be extended from inside the pit 101.

On the other hand, the fixed pipes 23 and 29 are connected by a hose 33 penetrating the lower floor plate 1. The hose 33 penetrates the lower floor plate 1 and connects the bottom surface of the pit 101 and the upper floor plate 14. By being helically disposed in a telescopic telescopic pipe 34 having a cylindrical shape communicating with the lower surface,
It can be expanded and contracted stably in the vertical direction. That is, the hose 33 has one end connected to the fixed pipe 23 and the other end connected to the fixed pipe 29, and can be extended from inside the pit 101.

The cable 24 is connected to the lower floor plate 1.
Is connected to the electric equipment of the upper floor plate 14, and the cable 24 can be extended by being fed out from the cable box 25.

A stage main floor 10 using such a stage apparatus is described.
When the acoustic reflector is installed on the stage 0, the driving device 8 is operated, the screw shaft 2 is rotated via the members 3 to 7, etc., and the hole 100a of the main floor 100 of the stage is closed by the lower floor plate 1. When the screw jack 15 is extended so as to have a size that requires a space between the lower floor plate 1 and the upper floor plate 14 while raising the lower floor plate 1 so that the lower floor plate 1 The front acoustic reflection plate 19 and the side acoustic reflection plate 20 are arranged to be flush with each other, and extend between the lower floor plate 1 and the upper floor plate 14 so as to cover between the lower floor plate 1 and the upper floor plate 14. The acoustic space is formed together with the ceiling acoustic reflector 21 between them, and at the same time, the cable 24, the telescopic duct 30, and the hose 33 are extended, and wiring and piping are installed collectively.

When the acoustic reflecting plate is stored, the screw jack 15 is contracted to reduce the distance between the lower floor plate 1 and the upper floor plate 14, and the driving device 8 is operated to operate the above members 3 to 3. By rotating the screw shaft 2 through the slab 7 or the like, the lower floor plate 1 is placed on the bottom surface of the pit 101, and the floor plates 1 and 14 are lowered so that the hole 100a of the stage main floor 100 is closed by the upper floor plate 14. Then, the upper floor plate 14 is disposed flush with the stage main floor 100, and the front acoustic reflection plate 19 and the side acoustic reflection plate 20 are contracted, so that the lower floor plate 1 and the ceiling acoustic reflection plate 21 are pitted together. The cable 24, the telescopic duct 30, and the hose 33 are contracted at the same time, and the wiring and the piping are removed collectively.

That is, the sound reflecting plates 19 to 21 are raised from the pit 101 below the main floor 100 of the stage, and the pipes and wiring are extended to follow the rising. The pipes and wires are also installed at the same time as the arrangement of the acoustic reflectors 21 to 21, and the respective acoustic reflectors 19 to 21 are stored in the pit 101 and the pipes and wires are stored following the storage. Piping and wiring were also removed at the same time as removal of 19-21.

For this reason, it is not necessary to connect or remove pipes and wiring every time the acoustic reflectors 19 to 21 are installed or stored on the main floor 100 of the stage. You don't have to get in the way.

Therefore, according to such a stage apparatus, piping, wiring, and the like can be easily arranged without obstruction.

[0034]

The stage apparatus according to the first aspect of the present invention is provided in a pit dug below the main stage of the stage so as to be able to ascend and descend, and communicates above the main stage with the inside of the pit. A lower floor plate capable of closing a hole formed in the stage main floor, an upper floor plate disposed above the lower floor plate and capable of closing the hole, and a lower floor plate elevating means for raising and lowering the lower floor plate;
An upper floor plate elevating means for raising and lowering the upper floor plate, a lower end side is connected to the lower floor plate, an upper end side is connected to the upper floor plate, and a front acoustic reflector that can expand and contract vertically, and a lower end side is connected to the lower floor plate. While being connected, the upper end side is connected to the upper floor plate, a side acoustic reflector that can expand and contract in the vertical direction, and a ceiling acoustic reflector provided on the lower surface of the upper floor plate,
One end communicates with an air-conditioning pipe arranged in the pit, and one end communicates with the air-conditioning pipe arranged in the pit. When the upper floor plate is raised by the upper floor plate elevating means and the lower floor plate is raised by the lower floor plate elevating means, the front acoustic reflection plate and the side acoustic reflection The board is extended to form an acoustic space together with the ceiling acoustic reflector between the upper floor board and the lower floor board, and at the same time, the telescopic duct is extended to keep the air conditioning piping in the pit and the air outlet in communication. This eliminates the need to connect or remove pipes each time the above-mentioned acoustic reflectors are installed or stored on the main floor of the stage, and the installed pipes do not become obstructive. It can be easily deployed out of the way.

The stage apparatus according to the second invention is provided so as to be able to ascend and descend in a pit dug below the main floor of the stage.
A lower floor plate capable of closing a hole formed in the stage main floor so as to communicate between the upper part of the stage main floor and the inside of the pit, and an upper floor plate disposed above the lower floor plate and capable of closing the hole, A lower floor board elevating means for raising and lowering the lower floor board, an upper floor board elevating means for raising and lowering the upper floor board, and a lower end side is connected to the lower floor board, and an upper end side is connected to the upper floor board, and is vertically expandable and contractable. A front acoustic reflector, a lower end connected to the lower floor, an upper end connected to the upper floor, and a side acoustic reflector that is vertically expandable and contractable, and a ceiling acoustic reflector provided on a lower surface of the upper floor. A plate, one end of which communicates with a water supply pipe disposed in the pit and provided in the pit, and a plurality of hoses which can be extended from the pit, and a plurality of hoses provided on the upper floor plate, Splice Edge Contact Since the upper floor board is raised by the upper floor board elevating means and the lower floor board is raised by the lower floor board elevating means, the front acoustic reflector and the side acoustic reflector extend with the rise. At the same time, an acoustic space is formed between the upper floor plate and the lower floor plate together with the ceiling acoustic reflection plate, and at the same time, the hose is extended and the water supply pipe in the pit and the sprinkler are maintained in communication. This eliminates the need to connect or remove pipes each time the above-mentioned acoustic reflectors are installed or stored on the main floor of the stage, and the installed pipes do not become obstructive. It can be easily deployed out of the way.

A stage apparatus according to a third aspect of the present invention is provided in a pit dug below the main floor of the stage so as to be able to move up and down.
A lower floor plate capable of closing a hole formed in the stage main floor so as to communicate between the upper part of the stage main floor and the inside of the pit, and an upper floor plate disposed above the lower floor plate and capable of closing the hole, A lower floor board elevating means for raising and lowering the lower floor board, an upper floor board elevating means for raising and lowering the upper floor board, and a lower end side is connected to the lower floor board, and an upper end side is connected to the upper floor board, and is vertically expandable and contractable. A front acoustic reflector, a lower end connected to the lower floor, an upper end connected to the upper floor, and a side acoustic reflector that is vertically expandable and contractable, and a ceiling acoustic reflector provided on a lower surface of the upper floor. Plate, a cable provided in the pit and extendable from within the pit, and a plurality of electric equipment provided on the upper floor plate and communicating with the cable, so that the upper floor plate lifting means means Raise the floorboard At the same time, when the lower floor board is lifted by the lower floor board elevating means, the front acoustic reflector and the side acoustic reflectors are elongated with the rise, and an acoustic space is formed between the upper floor board and the lower floor board together with the ceiling acoustic reflector. At the same time, the cable is extended and maintained in contact with the electrical equipment on the upper floor. For this reason, it is not necessary to connect or remove the wiring every time the above-mentioned acoustic reflectors are installed or stored on the main floor of the stage, and the installed wiring is not obstructed. It can be easily deployed out of the way.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view of a stage apparatus according to an embodiment of the present invention at the time of installation.

FIG. 2 is a partially cutaway perspective view during storage.

FIG. 3 is a schematic side view of a main part.

FIG. 4 is a plan view of a lower floor plate portion of FIG. 3;

FIG. 5 is a schematic side view of a conventional stage device which is suspended and stored in a divided fly tower.

FIG. 6 is a schematic plan view of a stage device of a conventional traveling type shelter, which is retractable inside the stage.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Lower floor plate 2 Screw shaft 3 Gear box 4 Shaft 5 Gear box 6 Coupling 7 Reduction gear 8 Drive device 9 Guide case 10 Counterweight 11 Pulley 12 Wire 13 Stopper device 14 Upper floor plate 15 Screw jack 16 Guide roller 17 Guide support 18 Stopper Apparatus 19 Front acoustic reflector 19a Upper front acoustic reflector 19b Lower front acoustic reflector 20 Side acoustic reflector 20a Upper acoustic reflector 20b Lower acoustic reflector 21 Ceiling acoustic reflector 22 Fixed duct 23 Fixed piping 24 Cable 25 Cable Box 26 Air outlet 27 Fixed duct 28 Sprinkler 29 Fixed piping 30 Telescopic duct 31 Guide wire 32 Reel 33 Hose 34 Telescopic pipe

Claims (3)

(57) [Claims] 1. A hole formed in a pit dug under a stage main floor so as to be able to ascend and descend, and formed in the main floor of the stage so as to communicate between the upper part of the main stage and the inside of the pit. A lower floor plate that can be closed, an upper floor plate that is provided above the lower floor plate and that can close the hole, a lower floor plate elevating unit that raises and lowers the lower floor plate, an upper floor plate elevating unit that raises and lowers the upper floor plate, A front acoustic reflector that is connected to the lower floor panel and has an upper end side connected to the upper floor panel and that can expand and contract vertically; a lower end side is connected to the lower floor panel and an upper end side is connected to the upper floor panel; A side acoustic reflector that can be expanded and contracted in the vertical direction, a ceiling acoustic reflector provided on the lower surface of the upper floor plate, and one end connected to the air conditioning pipe provided in the pit and disposed in the pit Along with the pit Noh telescopic duct, a plurality provided on said floor plate, the stage apparatus characterized by comprising a outlet to which the other end of the telescopic duct to contact. 2. A hole formed in a pit dug below the main floor of the stage so as to be able to ascend and descend, and formed in the main floor of the stage so as to connect the upper part of the main floor with the inside of the pit. A lower floor plate that can be closed, an upper floor plate that is provided above the lower floor plate and that can close the hole, a lower floor plate elevating unit that raises and lowers the lower floor plate, an upper floor plate elevating unit that raises and lowers the upper floor plate, A front acoustic reflector that is connected to the lower floor panel and has an upper end side connected to the upper floor panel and that can expand and contract vertically; a lower end side is connected to the lower floor panel and an upper end side is connected to the upper floor panel; A side acoustic reflector that can expand and contract in the vertical direction, a ceiling acoustic reflector provided on the lower surface of the upper floor plate, and one end connected to a water supply pipe disposed in the pit and disposed in the pit Along with the pit Noh hose, more provided on said floor plate, the stage apparatus characterized by comprising a sprinkler and the other end of the hose to contact. 3. A hole formed in a pit dug below the stage main floor so as to be able to ascend and descend, and formed in the main floor of the stage so as to connect the upper part of the main stage with the inside of the pit. A lower floor plate that can be closed, an upper floor plate that is provided above the lower floor plate and that can close the hole, a lower floor plate elevating unit that raises and lowers the lower floor plate, an upper floor plate elevating unit that raises and lowers the upper floor plate, A front acoustic reflector that is connected to the lower floor panel and has an upper end side connected to the upper floor panel and that can expand and contract vertically; a lower end side is connected to the lower floor panel and an upper end side is connected to the upper floor panel; A side acoustic reflector that can be expanded and contracted in the vertical direction, a ceiling acoustic reflector provided on the lower surface of the upper floor plate, a cable disposed in the pit and extendable from within the pit, and a plurality of the upper floor plate Provided, said cable Stage apparatus characterized in that it comprises an electrical equipment to contact.