JPH06205881A - Hanging member controlling device of stage mechanism - Google Patents

Abstract

PURPOSE:To display discernibly the position of a lower end of a hanging member on a picture plane while accurately carrying out the vertically moving operation of a baton by measuring automatically and rapidly the length of the hanging member. CONSTITUTION:This hanging member controlling device of a stage mechanism is provided with a hanging member length measuring means 22 for measuring and storing a baton position detecting signal as the length of the hanging member when the lower end of the hanging member hung by the baton contacts a stage surface, a hanging member height calculating means 23 for calculating the hanging member height from the stage surface based on the baton position detecting signal in the lift control of the baton and the hanging member length of the hanging member length measuring means and a display means 24 for discernibly displaying the hanging member height obtained from the hanging member height calculating means on the display picture plane, in a controlling device for controllably stopping the baton in a predetermined position on the basis of the baton position detecting signal taken directly or indirectly from a lift apparatus while the baton 6 hanging the hanging member 7 by the use of the lift apparatus 2 is controllably lifted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention is applicable to various theaters, theaters,
Involved in the hanging control device of the stage mechanism that controls the stage mechanism installed in the concert hall and various other public facilities,
In particular, the present invention relates to a hanging control device for a stage mechanism provided with a technique for automatically reading the length of a hanging object suspended on the stage and controlling the stop of the baton at a required position.

[0002]

2. Description of the Related Art Generally, a stage mechanism of this type is composed of a suspension device for suspending various kinds of stage equipment such as lights, curtains, and a floor device for changing the stage background associated with the floor portion of the stage. However, this hanging device also includes a hanging baton device and various other components. The suspended baton device in this suspended device is a device that has a function as a shelf for installing suspended objects on the upper surface of the stage, and suspends various suspended objects on a sludge to control the lifting and lowering of the suspended objects. is there.

Conventionally, this hanging baton device has a structure roughly shown in FIG. That is, the electric motor 1
A plurality of wire ropes 3, ... Is vertically lifted out from the lifting device 2 under the drive control of the plurality of wire ropes 3, .. At each end of the plurality of wire ropes 3 ,. A baton 6 is suspended via a plurality of branch pulleys 5, ... For this baton 6, for example, a curtain,
A hanging object 7 such as a background and props is hung. In the figure, 8 indicates the stage surface.

On the other hand, a load balance adjusting counterweight 10 is hung via a pulley 9 in the direction opposite to the wire rope feeding side of the lifting device 2 to balance the weight of the suspended object including the baton 7. There is.

The load balance adjusting counterweight 10 is provided with an encoder reel 12 via a wire rope 11.
, And the encoder reel 12 rotates as the counterweight 10 moves up and down. An encoder 13 is attached to this encoder reel 12. A signal of one pulse is generated from the encoder 13 every time the counterweight 10 moves up and down by 1 mm. Therefore, if the number of pulses from the encoder 13 is counted, the suspension point height h ₀ of the baton 6 can be detected. .

Next, the suspension control device for controlling the suspension device has a structure as shown in FIG. This control device counts up / down the pulses generated from the encoder 13 with the lifting / lowering operation of the counter weight 10 by the position detection counter 14, detects the movement amount of the baton 6, that is, the height h ₀ of the hanging point, and compares It is introduced to one input terminal of the circuit 15. The comparison circuit 15 includes a moving position setting device 16 in advance.
Since the moving position setting signal indicating the position at which the baton 6 should stop in consideration of the height of the hanging object 7 is input, the moving position setting signal is compared with the hanging point height h _0. However, when the suspension point height h ₀ matches the movement position setting signal,
A stop command is sent to the drive device 17 to stop the electric motor 1. The drive device 17 is a power supply device that supplies power to the electric motor 1.

Further, the suspension control device inputs the suspension point height h ₀ of the baton 6 generated from the position detection counter 14 into the display means 20 and, for example, as shown in FIG. 5 on a display screen such as a CRT display. The image is displayed. That is, on the display screen of the display means 20, (AAA), (BB)
B), (CCC) and other hanging batons 6 are displayed so that the length of the bar graph changes according to the lifting / lowering movement state of the baton 6, and the hanging point height such as YYYYcm is displayed on the upper part of each bar graph. h ₀ is displayed numerically.

Therefore, the operator controls the baton 6 and controls the stop of the baton 6 while observing the changing position of the baton position displayed on the screen such as the CRT display, that is, the lower end of the bar graph.

[0009]

By the way, the following problems have been pointed out in the stage mechanism control device as described above.

(1) First, when the stop position of the baton 6 is set, a suspended object 7 having a different length is suspended from each baton 6, ... After measuring the length of the suspended object for each of them, the measured value is set in the movement position setter 16, for example, the suspended object 7
The baton 6 is set to be stopped at a height position where the lower end of the baton contacts the stage surface 8. Therefore, in this case, it is necessary to measure the length of the hanging object 7 with a measure or the like for each baton 6 and set it in the movement position setting device 16, which is very complicated in terms of stage work.

(2) Since the stopping position of the baton 6 is determined by measuring the length of the suspended object with a measure or the like, the extension of the wire rope 3 or the suspended object 7 etc. when the suspended object 7 is suspended. No consideration is given to this, and therefore, when the stage mechanism is actually deployed, the lower end of the hanging object makes a large contact with the stage surface 8 and seriously impairs the stage effect.

(3) Further, although the hanging object 7 is hung on the baton 6, only the baton position (the lower end portion of the bar graph) is displayed on the display screen of the display means 20.
It is not clear whether or not the hanging object 7 is actually in contact with the stage surface 8. For example, the place where the lower end of the hanging object 7 should contact the stage surface 8 is between the stage surface 8 and the lower end of the hanging object. There is a case where a gap is formed or the hanging object 7 is loosely attached to the stage surface 8, so that the effect of the stage cannot be properly exhibited.

(4) Further, since only the position of the baton 6 is displayed on the display screen of the display means 20, when the operator operates up and down while watching the display state, the hanging object 7 is placed on the stage surface 8. Despite the contact, the descending and ascending operations of the lifting device 2 are often repeated, and as a result, for example, when the wire rope 3 becomes loose, the branch pulley 5
There is a problem in that the wire rope 3 is broken or is damaged by other components such as being disengaged from it or being caught by the convex portion of the branch pulley 5.

The present invention has been made in view of the above-mentioned circumstances, and the length of the suspended object can be quickly increased while the suspended object is suspended on the baton.
Moreover, it is an object of the present invention to provide a hanging control device for a stage mechanism that accurately measures.

Another object of the present invention is to allow the baton to be properly moved up and down while observing the lengths of the baton and the hanging object, so that the desired effect can be achieved with certainty, and by extension the baton. It is an object of the present invention to provide a suspended control device for a stage mechanism that can stop and control the vehicle at a predetermined position.

[0016]

In order to solve the above-mentioned problems, the invention according to claim 1 controls the lifting and lowering of a baton that suspends a suspended object by using a lifting device, and the lifting control of the lifting device. In the suspended control device of the stage mechanism for stopping and controlling the baton at a predetermined position based on the baton position detection signal taken out in relation to

A stage mechanism provided with hanging object length measuring means for measuring and storing the baton position detection signal as the length of the hanging object when the lower end of the hanging object hanging on the baton contacts the stage surface. It is a hanging control device.

According to the second aspect of the invention, the baton that suspends the suspended object is lifted and lowered by using the lifting device, and based on the baton position detection signal extracted in association with the lifting control of the lifting device. In the suspended control device of the stage mechanism for controlling the baton to stop at a predetermined position,

When the lower end of the suspended object suspended on the baton comes into contact with the stage surface, the suspended object length measuring means for measuring and storing the baton position detection signal as the length of the suspended object, and the baton of the baton. Suspended object height calculation means for calculating the height of the suspended object from the stage surface from the baton position detection signal during lifting control and the suspended object length stored by the suspended object length measuring means, and Display means for distinguishably displaying the hanging height obtained by the hanging height calculating means on the display screen is provided, and the baton is stopped and controlled at a predetermined position from the hanging height displayed on the display screen. It is a hanging control device for the stage mechanism.

[0020]

Therefore, according to the invention corresponding to claim 1, by taking the above means, when the lower end of the suspended object comes into contact with the stage surface when the suspended object is actually lowered to the baton, Since the baton position detection signal is captured as the length of the suspended object,
The length of the suspended object can be measured very quickly, and the suspended object length is determined in consideration of the elongation of the components, so there is a gap between the stage surface and the lower end of the suspended object, or the suspended object is on the stage. You can properly show the stage effects without sticking to the surface.

Next, the invention corresponding to claim 2 is the stage surface of the hanging object based on the length of the hanging object stored in advance in the hanging length measuring means and the baton position detection signal at the time of lifting / lowering control of the baton. Since the height of the baton is calculated and displayed on the display screen in a distinguishable manner, the baton can be reliably stopped and controlled at a predetermined position from the height of the suspended object on the display screen.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the device of the present invention will be described below with reference to FIGS.

In the hanging control device for the stage mechanism according to the present invention, the mechanism relating to the hanging device is assumed to have the same structure as that of FIG. Can be applied to various mechanisms related to the suspension device regardless of the above. Therefore, for convenience of explanation, the mechanism shown in FIG. 3 will be described below as an example.

FIG. 1 is a block diagram of a suspended object control device for controlling the mechanism shown in FIG. In the figure, 21 is an encoder 13
A position detection counter for counting the pulses generated from the counter. For example, an up / down counter or the like is used, and the position detection value of the counter 21 is the moving distance of the load balance adjustment counterweight 10, that is, the baton 6. The suspension point height h ₀ is represented. Further, specifically, when the position detection value of the counter 21 is set to zero when the baton 6 is present on the stage surface 8 and the position detection value is counted by the position detection counter 21 in proportion to the rising distance of the baton 6, A suspension point height h ₀ of 6 can be obtained.

On the output side of the position detection counter 21, a hanging length measuring means 22 is provided. The hanging length measuring means 22 is a hanging length reading means 22a for producing a measurement timing when the lower end of the hanging comes into contact with the stage surface 8 as shown by the dotted line in FIG. The suspension point height h ₀ of the baton 6 read by the reading means 22a
Is stored as a hanging length h. This hanging length reading means 22a is
A hard push button switch or other hard switch is usually used, but when it is realized by a data processing device using a CPU, for example, a measurement timing signal is input using a keyboard, a touch switch, or the like.

Reference numeral 23 is a suspended object height calculating means for obtaining the suspended object height of the suspended object 7 by subtracting the suspended object length h from the suspended point height h ₀ output from the position detection counter 21. When the hanging length reading means 22a is turned off, the hanging point height calculating means 23 outputs the hanging point height h _{0 as it} is, and the hanging length reading means 2
After 2a ON outputs (h ₀ -h), to the display unit 24.

The display means 24 is, for example, the storage means 22.
The output h of b and the output (h ₀ −
2) and has a function of displaying an image as shown in FIG. 2 on a display screen such as a CRT display. Incidentally, (AAA), (BBB), and (CCC) in FIG. 2 respectively indicate the hanging baton 6, and the white frame portion of the bar graph, particularly the lower end of the white frame portion, indicates the current position of the baton 6, and the baton 6 It changes with the rise and fall of. The shaded frame portion is the hanging length h of the hanging length storage means 22b, and this hanging length h is a predetermined length, for example, the hanging length storage means 2
2b may be read directly, or the lower end of the hanging object contacts the stage surface 8 and the output of the hanging object height calculating means 23 before the measuring timing is created by the hanging object reading means 22a. You can

Reference numeral 25 is a moving position setting device, which sets the stop position of the baton 6 when it is used as it is when the reading means 22a is off,
Further, when the reading means 22a is used while being turned on and off, a predetermined stop position at the lower end of the suspended object, that is, a suspended object height is set. Reference numeral 26 is a comparison circuit, and 27 is a driving device. Next, the operation of the apparatus configured as described above will be described.

First, after hanging the hanging object 7 on the baton 6,
The elevating device 2 is drive-controlled by the electric motor 1 and a visual operation is performed so that the lower end of the suspended object 7 suspended on the baton 6 contacts the stage surface 8 or reaches a predetermined height position. Then, when the lower end of the hanging object 7 contacts the stage surface 8 as shown by the dotted line in FIG. 3, the reading means 22a is turned on to take in the hanging object length h from the position detection counter 21, and the hanging object length storing means. 22b. At this time, the baton 6 and the suspended object 7 are actually
Since it is carried out with the wire rope 3 and the hanging object 7
Since the extension due to the weight of the same is naturally added, the accurate hanging length h can be stored in the hanging length storage means 22b.

At this time, if the output of the hanging height calculating means 23 is supplied to the displaying means 24, the hanging length h shown in FIG. 2 can be obtained. However, when the display means 24 takes in the hanging length h from the hanging length storage means 22b, the above-mentioned reading from the hanging height calculating means 23 is unnecessary.

As described above, the hanging length storage means 22b.
After storing the suspended object length h in the suspended object, the suspended object length reading means 22
Turn off a. After that, when the baton 6 is controlled to move up and down when actually constructing the stage background, the suspended object height calculating means 23 causes the suspended object height (h ₀ −h) at predetermined intervals in accordance with the upward and downward control of the baton 6. ) Is introduced into the subsequent display means 24 and the comparison circuit 26.

As a result, the hanging length h has already been captured in the display screen of the display means 24, or the storage means 22b.
The suspension length h is read from the suspension height calculation means 2
3 receives the suspended object height (h ₀ −h), the (h ₀ −h) from the stage surface 8 changes as shown in FIG. 2, and the suspended object length h is constant. Therefore, for example, a bar graph can be displayed while the position of the baton 6 (the length of the white frame portion) changes sequentially.

On the other hand, in the comparison circuit 26, since the height of the lower end of the hanging object (zero when making contact with the stage surface) is preset in the moving position setting device 25, the hanging object height calculating means 2
When the height of the suspended object (h ₀ −h) from 3 coincides with the set height of the lower end of the suspended object of the movement position setting device 25, if the stop command is output to the drive device 27, the electric motor 1 can be stopped and the baton can be stopped. It is possible to stop and set 6 or the hanging object 7 at a required position.

Therefore, according to the configuration of the above embodiment, after the hanging object 7 is hung on the baton 6, the lower end of the hanging object 7 is on the stage surface 8 while the operator operates the baton 6 up and down. When the predetermined position is reached, the output of the position detection counter 21 is fetched and stored in the hanging length storage means 22b, so that the hanging length can be measured quickly and automatically, and the baton 6 can be actually used. Since the hanging object 7 is hung, the hanging object length can be accurately obtained while sufficiently considering the elongation of each member.

If the hanging length h is stored in the hanging length storage means 22b and then the hanging length h is subtracted from the output h ₀ of the position detection counter 21, the hanging height at the lower end of the hanging is obtained. (H ₀ −
h) can be obtained. Then, if the height of the lower end of the hanging object is supplied to the display means 24, and the height of the hanging object and the hanging object length already stored in the storage means 22b are used to display the height, the height from the stage surface 8 is displayed. The position of the lower end of the hanging object 5 can be displayed in an easily distinguishable manner, the lifting and lowering operation of the baton can be positioned very accurately, and the baton can be accurately stopped and controlled at a predetermined position.

In the above embodiment, after the baton 6 is held by using the plurality of wire ropes 3, ...
Although the hanging object 7 is hung in the above, the present invention can be similarly applied to a case where the hanging object 7 is directly hung on a single-point hanging device of a hanging mechanism without using a baton. Further, the method of inputting the length of the suspended object may be a method of measuring the length of the suspended object 7 with a measure or the like and directly inputting it to the storage means 22b using a keyboard or the like. In addition, the present invention can be modified in various ways without departing from the scope of the invention.

[0037]

As described above, according to the present invention, the following various effects are exhibited. According to the invention of claim 1, the length of the suspended object can be measured quickly and automatically, and moreover, the length of the suspended object can be accurately acquired while sufficiently considering the elongation of each member of the suspended mechanism.

Next, according to the second aspect of the invention, the height of the hanging object from the stage surface is determined based on the hanging object length stored in advance in the hanging object length measuring means and the baton position detection signal when the baton is moved up and down. Is calculated and displayed in a distinguishable manner on the display screen, the stage operation can be reliably performed, and the baton can be reliably stopped and controlled at a predetermined position from the height of the suspended object on the display screen.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing an embodiment of a suspended control device for a stage mechanism according to the present invention.

FIG. 2 is a diagram showing a display state of a display screen when the hanging control device for a stage mechanism according to the present invention is used.

FIG. 3 is a configuration diagram showing an example of a general stage mechanism when the hanging control device of the stage mechanism is applied.

FIG. 4 is a configuration diagram showing an example of a conventional hanging control device for a stage mechanism.

FIG. 5 is a diagram showing a display state of a display screen when a conventional hanging control device for a stage mechanism is used.

[Explanation of symbols]

1 ... Electric motor, 2 ... Lifting device, 3 ... Wire rope, 5 ... Branch pulley, 6 ... Baton, 7 ... Hanging object, 8 ... Stage surface, 10 ... Load balance adjustment counterweight, 12 ... Encoder reel, 13 ... Encoder , 21 ... Position detection counter, 2
2 ... Hanging length measuring means, 22a ... Hanging length reading means,
22b ... Hanging length storage means, 23 ... Hanging height calculation means,
24 ... Display means, 25 ... Moving position setting device, 26 ... Comparison circuit, 27 ... Driving device.

Claims (2)

[Claims] 1. A lifting / lowering device is used to control lifting / lowering of a baton on which a suspended object is suspended, and the baton is stopped at a predetermined position based on a baton position detection signal extracted in association with lifting / lowering control of the lifting / lowering device. In a hanging control device of a stage mechanism for controlling, when the lower end of the hanging object hung on the baton contacts the stage surface, the hanging object length which measures and stores the baton position detection signal as the length of the hanging object. An apparatus for controlling a suspended object of a stage mechanism, characterized in that a height measuring means is provided. 2. A baton on which a suspended object is suspended is lifted and lowered by using a lifting device, and the baton is stopped at a predetermined position based on a baton position detection signal extracted in association with the lifting control of the lifting device. In a hanging control device of a stage mechanism for controlling, when the lower end of the hanging object hung on the baton contacts the stage surface, the hanging object length which measures and stores the baton position detection signal as the length of the hanging object. Suspension measuring means, and a suspension for calculating the height of the suspension from the stage surface based on the baton position detection signal at the time of controlling the elevation of the baton and the length of the suspension stored by the suspension length measuring means. An object height calculating means and a display means for displaying the hanging height obtained by the hanging height calculating means in a distinguishable manner on the display screen, and the baton from the hanging height displayed on the display screen. Stop control in place A suspension control device for a stage mechanism, which is characterized in that