JP5179765B2 - Point suspension control structure - Google Patents

Description

  The present invention relates to a hanging device control structure including a movable hanging device installed on a stage ceiling of a theater, a hall, an arena, and the like, and a control device that supplies power and control signals to the hanging device. It is.

  On the stage ceilings of theaters, halls, arenas, etc., a hanging device that hangs a suspended object such as a microphone or a lighting fixture on a hook and moves the hook up and down to adjust the lifting position of the suspended object is arranged. .

  This point hanging apparatus needs to change the hanging position and the raising / lowering position of a suspended object according to a performance event, and what was shown in patent document 1 can be illustrated as what was equipped with the mechanism for it. .

  In this suspension system, a rail is installed under the ceiling, and a traveling block is provided on the rail so as to be movable. A wire is wound around a pulley provided on the traveling block so as to be rotatable. The hook provided on the wire can be moved up and down by winding or unwinding with a motor provided on the wire.

According to this configuration, the traveling block can be manually moved to an arbitrary hanging position without hanging a suspended object on the hook, and is suspended on the hook by winding or unwinding the wire by the motor. The lifting position of the suspended object can be adjusted.
JP 2003-19370 A (see FIGS. 1 to 4)

  Since the hanging device shown in Patent Document 1 has a rail installed below the ceiling, the ceiling upper surface is only a motor and can be used effectively such as allowing people to walk. However, there are the following problems. is there.

  In other words, since the suspension position can be changed only along the rail, it is necessary to set the rail long so that the suspension position can be changed to an arbitrary suspension position. Increases the cost.

  In addition, since this point suspension device is provided with a motor above the ceiling and a rail below, the constituent members (for example, cables for transmitting electric power and control signals to the motor) are arranged above and below the ceiling. Will be scattered, and the overall size of the apparatus will increase, which will also increase the cost.

  Therefore, an object of the present invention is to provide a hanging device control structure including a hanging device that can be made compact and inexpensively manufactured and a control device that can easily supply power and control signals to the hanging device. It is to be.

In order to achieve the above object, the present invention is composed of a hanging device that can be moved to any position on the upper surface of the stage ceiling, and a control device that supplies electric power and control signals to the hanging device. The point suspension device has a plurality of point suspension devices, and each point suspension device includes a winding drum on which a suspension wire is wound, and an electric motor that drives the winding drum. Bei give a, the control device includes an elongated guide member disposed on the stage ceiling upward, and a plurality of control member movably coupled along the guide member, each control member, the main A power supply cable that receives power supply from the power supply unit is provided, or the power supply cable can be connected, and a power supply cable that supplies power from the main power supply unit to an adjacent control member is provided or the power supply cable And can be connected, each control member is characterized in that the connectable to or the control cable comprises a control cable for supplying power and control signals to the suspension above point device.

  The point suspension device control structure of the present invention selects a control member that is closest to a point suspension device disposed at an arbitrary position from among a plurality of control members connected to the guide member, and this control member. Is moved along the guide member to move the control member to a position closest to the hanging device. Thereafter, the two are connected with a control cable having a minimum necessary length suitable for this distance.

  In this state, the electric motor is driven by supplying electric power and a motor control signal to the point suspension device, and the suspension wire wound around the winding drum is fed out or wound up to the stage floor side. For example, the raising / lowering position of the suspended object suspended from the hook at the tip is adjusted.

  At this time, since the point suspension device and the control member can always be connected with the minimum necessary control cable, the control cable can be prevented from being bulky on the stage ceiling upper surface, and the stage ceiling upper surface can be effectively used.

In addition, it is possible to increase the number of control members that are suspended and supported by the guide member and the number of point suspension devices, and it is possible to easily cope with the type and number of suspended objects . "

  Hereinafter, an embodiment in which the present invention is embodied in a control system for a hanging device installed on a stage ceiling of a theater will be described with reference to the drawings.

  First, the outline of the control system of the point suspension apparatus will be described. As shown in FIG. 2, a plurality of (only four units are shown in FIG. 2) movably arranged on the upper surface of the grating type cage 3 as a stage ceiling. The suspension device 1 includes a suspension device 1 and a control device 40 that supplies electric power and control signals to the suspension device 1. The suspension device 1 is located at a suspension position of a suspended object corresponding to a performance event. Has been placed.

  Hereinafter, the point suspension device 1 and the control device 40 will be described in detail. First, as shown in FIG. 1, the point suspension device 1 is a box having a traveling member that travels on the upper surface of the basket 3 at the bottom. A main body 4, a take-up drum 5 disposed in the main body 4, and an arm portion 6 whose base end portion is pivotally supported with respect to the main body 4. The suspension wire 8 wound around the drum 5 is drawn out or wound up to the stage floor surface S via the arm portion 6.

  An electric motor 9 with a brake for driving the winding drum 5 is attached to the upper surface of the main body 4, and a motor control signal as a control signal from a controller (not shown) provided separately from the main body 4. Thus, the electric motor 9 with brake is driven to feed out or wind up the suspension wire 8 wound around the winding drum 5.

  Although not shown, the main body 4 can be connected to a control cable (details will be described later) for supplying electric power and the motor control signal to the electric motor 9 with brake.

  A pair of upper and lower support plates 11a and 11b are projected from the front surface of the main body 4 (referred to as the right side surface in FIG. 1), and the arm 6 is pivoted between the support plates 11a and 11b. The shaft portion 12 is pivotally supported so as to be rotatable.

  The arm portion 6 whose base end is fixed to the shaft portion 12 includes a pair of left and right arm plates 6a and a sheave 13 pivotally supported between the arm plates 6a. The suspension wire 8 led out from the inside is guided to the floor side S of the stage through the sheave 13.

  A locking member is pivotally supported between the arm plates 6a on the base end side of the sheave 13 so as to be rotatable.

  This locking member is composed of a locking bar 14 whose base end is pivotally supported between the arm plates 6a, and a nut 15 screwed onto the locking bar 14. Rotate in the standing direction (indicated by the arrow in FIG. 2), fit into one of the two locking recesses 11c formed on the flange 16 provided on the upper support plate 11a, and tighten the nut 15 Thus, the arm portion 6 is selected and fixed to the main body 4 at two positions of the use position shown in FIG. 3 and the storage position shown in FIG.

  A screw jack 17 as a front side fixing member is provided at the tip of the arm portion 6.

  The screw jack 17 includes a mounting portion 18 fixed to the distal end of the arm portion 6 by welding or the like, a rod-shaped screw portion 19 screwed into the mounting portion 18, and a handle 20 attached to the upper end of the screw portion 19. And a fixing plate 21 attached to the lower end of the screw portion 19.

  Accordingly, the handle 20 is rotated to lower the screw portion 19 with respect to the arm portion 6, and the fixing plate 21 at the lower end of the screw portion 19 is pressed against the upper surface of the hook 3, whereby the suspension wire 8 is fed or wound. In some cases, the main body 4 is prevented from falling to the arm portion 6 side, and the spot hanging device 1 itself is positioned and fixed together with a rear fixing member described later.

  The traveling member is a caster 23, and is provided at a predetermined interval at the bottom of the main body 4. In the present embodiment, there are three on each side, one on the front center and one on the rear surface. One is provided.

  Further, as shown in FIG. 5, the caster 23 has a width H of the wheel 23a set to be larger than the groove width h of the hook 3 and the wheel 23a is fitted in the groove of the hook 3 when the point suspension device 1 is moved. It is designed not to be included.

  A front handle 24 and a rear handle 25 are provided on the upper front portion of the main body 4 and the upper portion of the rear surface (referred to as the left side in FIG. 1), respectively. It can be moved easily.

  A clamp 26 as a rear side fixing member is provided on the lower rear surface of the main body 4.

  As shown in FIG. 1, the clamp 26 has its lower end locking portion 28 locked to the lower surface (referring to the side of the stage) 3 a of the hook 3 by the operation of the operation lever 27, and the suspension wire 8 is fed or wound. In addition to preventing the main body 4 from floating upward at the time of removal, the hanging device 1 itself is positioned and fixed in combination with the action of the screw jack 17.

  As shown in FIG. 1, the control device 40 is connected to a long guide member disposed above the cage 3 and movably along the guide member. A plurality of control members 43 that can be connected to a control cable 42 that supplies a control signal, and a power supply cable 44 that is connected to adjacent control members 43 and supplies power to these control members 43 are provided.

  The guide member is a rail member 41 that is suspended and supported from the ceiling of the building above the cage 3 and is disposed in proximity to the top surface of the cage 3 and, as shown in FIG. They are arranged in parallel.

  The rail member 41 suspends and supports the control member 43 via a first guide roller 45 provided on the upper surface thereof.

  The control member 43 is formed in a box shape, and on its front side, the suspension wire 8 wound around the winding drum 5 of the point suspension device 1 is fed or wound up to the stage floor side S. A connection port 46 of the control controller for outputting a motor control signal to the brake-equipped electric motor 9 for control is provided.

  At the upper part of the connection port 46 is a rotary switch 47 for turning on or off the electric power from the power supply cable 44 and the motor control signal from the controller to the point suspension device 1 and a display indicating the state of the turning on. A lamp 48 is provided. When the switch 47 is rotated in the direction of the arrow in FIG.

  In addition, at the center of the lower surface of the control member 43, the power for driving the brake-equipped electric motor 9 of the hanging device 1 and the motor control signal from the control controller are supplied to the hanging device 1. A control cable 42 is connected.

  Accordingly, the control member 43 that is closest to the point suspension device 1 is selected from the plurality of control members 43 that are suspended and supported by the rail member 1, and the control member 43 is moved along the rail member 41. By moving the control member 43, the control member 43 is moved to a position closest to the point suspension device 1, and then the control member 43 and the point suspension device 1 have a minimum necessary length suitable for the distance. By connecting with the control cable 42, it is possible to prevent the control cable 42 from becoming bulky on the upper surface of the basket 3 and to effectively use the upper surface of the basket 3.

  Further, in the point suspension device 1, the electric motor 9 with a brake for driving the winding drum 5 is controlled by the electric power from the control member 43 and a motor control signal, and the suspension wire wound around the winding drum 5 is controlled. 8 is fed out or taken up to the stage floor side S.

  The feeding cable 44 is connected to both sides of the lower surface of the control member 43, and can be moved to the rail member 41 while being bent at the center by a second guide roller 49 attached to an intermediate portion thereof. It is connected.

  Accordingly, the feeding cable 44 can be prevented from hanging down below the control member 43, and the interval between the adjacent control members 43 can be arbitrarily changed within a range in which the feeding cable 44 bent compactly extends and contracts. It has become.

  As shown in FIG. 2, the power feeding cable 44 is connected to a main power supply unit 51 provided on the building side at the end of the rail member 41, and the main power supply unit 51 connects to the plurality of control members 43. Electric power is supplied.

  The operation of the hanging device control structure configured as described above will be described. First, the unused hanging device 1 in which the arm portion 6 is in the storage position shown in FIG. The front handle 24 and the rear handle 25 provided on the upper portion and the rear upper portion are gripped and moved to a predetermined hanging position shown in FIG. 2 by manual operation.

  Thereafter, the locking rod is removed from one of the locking recesses 11 by rotating the locking rod 14 so that the locking rod 14 is tilted by loosening the nut 15.

  Next, the arm portion 6 is rotated to the use position shown in FIG. 2, the locking rod 14 is rotated again in the upright direction, fitted into the other locking recess 11 c, and the nut 15 is tightened, The arm 6 is positioned and fixed at the use position shown in FIG.

  In this state, the handle 20 of the screw jack 17 is rotated, the screw portion 19 is lowered from the arm portion 6, and the fixing plate 21 at the lower end of the screw portion 19 is pressed against the upper surface of the hook 3, thereby While the main body 4 is prevented from falling to the arm portion 6 side during feeding or winding, the point suspension device 1 is positioned and fixed.

  At the same time, by operating the operation lever 27 of the clamp 26, the locking portion 28 at the lower end is locked to the lower surface of the hook 3 and the main body 4 is prevented from floating upward, and the screw jack In combination with the action of 17, the hanging device 1 itself is positioned and fixed.

  For the point suspension device 1 in this state, the control member 43 that can be closest to the control member 43 is selected from the plurality of control members 43 that are suspended and supported by the rail member 41, and the control member 43 is moved along the rail member 41. By moving the control member 43, the control member 43 is moved to a position closest to the hanging device 1. Thereafter, as shown in FIGS. 1 and 2, the two are connected using a control cable having a minimum necessary length suitable for this distance.

  Next, a control controller (not shown) is connected to the connection port 46 of the control member 43, and the switch 47 is rotated in the direction of the arrow in FIG. 1 is set in a state where power and a motor control signal can be supplied.

  Thereafter, the control motor is used to drive the brake-equipped electric motor 9, the suspension wire 8 wound around the take-up drum 5 is fed out to the floor surface S of the stage, and the suspension 30 (not shown) is suspended at the tip hook 30. The lifting position of the suspended object is adjusted by hanging the object and moving the hook 30 up and down.

  At this time, the point suspension device 1 is provided with a caster 23 at the bottom of the main body 4 so as to be movable alone, and the winding drum 5 that winds the suspension wire 8 around the main body 4 side, or the winding drum 5 is provided. Since the brake-equipped motor 9 is provided, the entire apparatus can be made compact compared to the apparatus shown in the conventional example.

  Therefore, the point suspension device 1 itself can be manufactured at a low cost, and can be easily moved to an arbitrary suspension position by a manual operation, so that the usability is very good.

Further, by pivotally supporting the arm portion 6 with respect to the main body 4 so that the arm portion 6 can be rotated at the base end portion thereof, the arm portion 6 can be folded to the storage position shown in FIG. Can be stored
Further, since a motor 9 with a brake for driving the take-up drum 5 is provided on the main body 4 side, it is only necessary to provide a power cord connected to an external power source from the main body 4, and the entire apparatus can be made compact. it can.

  Further, since the motor 9 with brake is provided so as to be exposed on the upper surface of the main body 4, maintenance of the motor portion can be easily performed.

  In addition, since the front handle 24 and the rear handle 25 are provided on the upper front portion and the rear upper portion of the main body 4, respectively, when moving the hanging device 1 back and forth, the handles 24 and 25 can be easily attached from either side. It can be gripped and operated, and it is very convenient.

  Further, since a plurality of the control members 43 are provided and supported so as to be movable on the rail member 41, the point suspension device 1 and the control member 43 can always be connected with the minimum necessary control cable 42. By preventing the control cable 42 from becoming bulky on the upper surface, the upper surface of the scissors 3 can be used effectively.

  Further, the control member 43 is provided with the connection port 46 of the control controller, so that the feeding or winding control of the hanging wire 8 to the stage floor surface S is directly performed on the upper surface of the basket 3 on which the hanging device 1 is arranged. Since it can carry out while confirming, workability | operativity can be improved.

  Further, by increasing the number of control members 43 supported by hanging on the rail member 41 and the point suspension device 1, it is possible to easily cope with the type and number of suspended objects.

  In addition, this invention is not limited to the said embodiment, For example, it can also be changed and embodied as follows.

  1) In the present embodiment, two locking recesses 11c for locking the locking rods 14 as locking members are provided for the use position and the storage position. However, the present invention is not limited to this. By providing them individually, the hanging wire 8 may be fed out or wound up to the floor side S of the stage with the angle of the arm 6 relative to the main body 4 arbitrarily changed.

  2) In the present embodiment, the caster 23 is used as the traveling member. However, the present invention is not limited to this, and other than the caster 23, for example, a crawler or the like may be used. It is good also as a traveling member provided with the drive means to do.

  3) In the present embodiment, the screw jack 17 as the front side fixing member is provided at the tip of the arm 6, but the present invention is not limited to this, and it may be provided directly on the main body 4 side, or the fixing member. This structure is not limited to the screw jack 17 shown in the present embodiment, and any other structure can be adopted.

  4) In the present embodiment, the brake-equipped electric motor 9 for driving the winding drum 5 is attached to the upper surface of the main body 4, but the present invention is not limited to this, and may be provided in the main body 4. .

  5) In the present embodiment, the point suspension device 1 is shown as having the arm portion 6 that pivotally supports the base end portion of the main body 4 so as to be rotatable, and the caster 23. However, the present invention is not limited to this. Instead, the spot hanging device 1 that does not include the arm 6 or the caster 23 may be used.

  6) In the present embodiment, the control cable 42 is a separate body that can be connected to the control member 43. However, the control cable 42 is not limited to this, and the control cable 42 is wound in a reel shape to enter the control member 43. In this case, the control cable 42 may be pulled out by an amount corresponding to the distance from the hanging device 1, so that it is possible to reliably prevent the control cable 42 from being bulky on the upper surface of the scissors 3. it can.

  7) In the present embodiment, the hanging device 1 is arranged to control the feeding or winding of the hanging wire 8 to the stage floor surface S by providing the control member 43 with the connection port 46 of the control controller. Although it was made while confirming directly on the upper surface of the scissors 3, it is not limited to this, and the motor control signal of the controller is sent to the control member 43 wirelessly, and this motor control signal is sent via the control cable 42. You may make it send to the point suspension apparatus 1, and if it carries out like this, feeding or winding control to the stage floor surface side S of the said suspension wire 8 can be remotely operated.

  8) In this embodiment, two rail members 41 as the guide members are arranged in parallel at positions close to both wall surfaces. However, the present invention is not limited to this, and the stage ceiling is square or circular. The rail member 41 may be provided in a circular shape or an arc shape, and the shape of the rail member 41 and the structure that can move along the rail member 41 may be arbitrarily selected. it can.

It is a partially broken side view showing one embodiment of the point suspension device control structure of the present invention. It is a top view which shows the outline of the point suspension apparatus control structure of FIG. It is a top view which shows the point suspension apparatus of FIG. It is a top view which shows the non-use state of the point suspension apparatus of FIG. It is a partially broken front view which shows the point suspension apparatus of FIG.

Explanation of symbols

1-point suspension device 3 Samurai child (stage ceiling)
5 Winding drum 6 Arm 6a Arm plate 8 Hanging wire 9 Motor with brake (drive means)
11a Locking recess 13 Sheave 14 Locking bar (Locking member)
15 Nut (locking member)
17 Screw jack (front side fixing member)
23 Caster 23a Wheel 24 Front handle 25 Rear handle 26 Clamp (Rear fixing member)
40 control device 41 rail member (guide member)
42 Control cable 43 Control member 44 Power supply cable 46 Connection port 47 Switch h Blade width H Wheel width S Stage floor side

Claims (9)

A hanging device control structure composed of a hanging device that can be moved to an arbitrary position on the upper surface of the stage ceiling, and a control device that supplies electric power and control signals to the hanging device,
Hanging the point apparatus, while being a plurality, suspension device each point, and a take-up drum wound hanging wires, e Bei an electric motor for driving the winding drum,
The control device includes a long guide member disposed above the stage ceiling, and a plurality of control members coupled to be movable along the guide member .
Each of the control members includes a power supply cable that receives supply of power from the main power supply unit, or enables connection of the power supply cable, and supplies power from the main power supply unit to an adjacent control member Or the power supply cable can be connected,
Each said control member is provided with the control cable which supplies the electric power and control signal to the said hanging device, or the said hanging cable control structure characterized by the above-mentioned . Each of the control members is formed in a box shape, and in front of the control member , in order to control the feeding or winding of the suspension wire wound around the winding drum of the point suspension device to the stage floor surface side. The hanging device control structure according to claim 1 , further comprising a connection port of a control controller that outputs a motor control signal to the electric motor. Each control member, hanging point according to claim 1 or claim 2 and a switch for up or interruption of the power and point suspension device of the control signal from the controller from the power supply cable to the front Device control structure. The guide member is a rail member supported suspended from the stage ceiling above the building ceiling, according to claim 1 in which the respective control member is supported in a suspended state can move the rail member, claim 2 or claim Item 4. The hanging device control structure according to Item 3 . The power supply cable, the claims intermediate portion is movably coupled along the guide members 1, claim 2, point suspension device control structure according to claim 3 or claim 4. The above-mentioned point suspension device has a box-shaped main body with a traveling member for traveling on the upper surface of the stage ceiling, a winding drum disposed in the main body, and a base end portion that is rotatable with respect to the main body. And a suspension wire wound around the winding drum is fed out or wound up to the stage floor surface via the arm by an electric motor that drives the winding drum. The hanging device control structure according to claim 1 , claim 2, claim 3, claim 4 or claim 5 . 7. The traveling member is a caster, and a plurality of the traveling members are provided at predetermined intervals on the bottom surface of the main body, and the width of the wheel is set to be larger than the groove width of the scissors that constitute the stage ceiling surface. point suspension system control structures described. The above arm portion and said body rear face provided with respective front stationary member and the rear fixing member, a point suspension device by the operation of these fixing members to claim 6 or claim 7 for positioning and fixing with respect to the stage ceiling surface The point suspension device control structure described. The arm portion includes a pair of left and right arms plates, it is composed of a rotatably supported by the sheave to the arm plates, suspended above derived from within the body wire of the stage through the sieve The spot hanging device control structure according to claim 6 , 7 or 8, which is guided to the floor surface side.

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