JPH11209080A - Hanging device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily set the upper/lower limits of wire ropes by arranging one of a plurality of wire ropes to horizontally hang down a hanging cargo so as to be freely wound/sent out, and storing a winding quantity of the wire ropes in detecting the horizontal of the hanging cargo as the upper/lower limits. SOLUTION: An upper/lower limit-set wire rope B1 is connected to one end of a baton A1 to give a command to set the upper/lower limits by an inclination detector LD1 to a lifting unit controller D3 to control a wire rope B3 connected to the other end of the baton A1 by a synchronous controller E. A distance between the upper limit and the lower limit of the wire rope B1 is informed. A winding quantity of the wire rope B3 is stored in a storage means in the synchronous controller E as the upper limit at that time by stopping winding when detecting a horizontal state by monitoring output of the inclination detector LD1 by issuing a command to a lifting unit C3 so as to wind the wire rope B3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hanging apparatus for hanging batons or the like for attaching stage equipment such as a stage or a banquet hall.

[0002]

2. Description of the Related Art In a stage or a banquet hall, a variety of production equipment such as lighting equipment and backdrops are attached to a bar-shaped hanging material proved to be a baton, and then several pieces are taken off the ceiling. A hoisting device is used in which the baton is lifted by the wire rope and used at high places.

By the way, in the conventional hanging device,
A winding drum for winding each wire rope is rotated by a plurality of motors, and each wire rope is sent out from the winding drum or wound up and down the baton.

[0004] In the conventional hanging apparatus as described above, when connecting the wire rope to the baton, it is necessary to connect the baton so that the baton is kept horizontal, and the lifting limit (upper limit) and the lowering of the lifting and lowering of the baton are required. It is necessary to set a limit (lower limit).

[0005]

However, the hanging device having the above-mentioned structure has a problem that it takes time and effort to set the upper and lower limits for each wire rope. I was

The present invention has been made in view of the above problems, and an object of the present invention is to provide a suspended object device capable of simplifying setting of upper and lower limits of a wire rope. It is in.

[0007]

According to the first aspect of the present invention,
A plurality of wire ropes for suspending a suspended object, an elevating unit for rewinding / sending the wire rope, an inclination detector for detecting whether the suspended object is kept horizontal, and a winding limit for at least one wire rope An operation panel having an upper and lower limit setting function for setting an upper limit and a lower limit which is a sending limit, and a tilt detector detects a horizontal level when a wire rope for which the upper and lower limits are set is fixed to an upper limit (or a lower limit). Up / down unit control means for automatically winding / sending another wire rope up to, and upper / lower limit storage means for storing the position where the winding / sending of the other wire rope is stopped as an upper limit (or lower limit). It is characterized by having done.

According to a second aspect of the present invention, there is provided at least a lifting unit having a plurality of wire ropes for suspending a suspended object, a load detecting function for winding / unwinding the wire rope and detecting a load applied to the wire rope. An operation panel with an upper / lower limit setting function that sets the upper limit that is the winding limit and the lower limit that is the sending limit for one wire rope, and when the wire rope with the upper and lower limits is fixed to the upper limit (or lower limit) An elevating unit control means for automatically winding / sending another wire rope until the load detector falls within a predetermined range, and an upper limit (or lower limit) where the winding / sending of the other wire rope is stopped. And upper and lower limit storage means for storing.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to FIGS. FIG. 1 is a schematic configuration diagram of a suspended object device. FIG. 2 is a partial schematic configuration diagram of the hanging device illustrating a process of setting the upper and lower limits of the wire rope. FIG. 3 is a flowchart showing the process of setting the upper and lower limits of the wire rope. FIG. 4 is a partial schematic configuration diagram of a hanging device showing a process of setting the upper and lower limits of another wire rope. FIG. 5 is a flowchart showing a process of setting the upper and lower limits of another wire rope.

As shown in FIG. 1, a suspended object device comprises batons A1 to A2 corresponding to suspended objects and wire ropes B1 to B2.
6, a lifting unit C1 to C6, a lifting unit controller D1 to D6, a synchronization controller E, an operation panel F, and tilt detectors LD1 to LD2 corresponding to tilt detecting means. The number of the baton A, the wire rope B, the lifting unit C, the lifting unit controller D, and the like are not limited to these, but can be set arbitrarily.

The baton A is a strong rod for attaching various production equipment such as lighting fixtures and backdrops. The wire rope B is for suspending the baton A. For example, the wire rope B1 is near the left end of the baton A, the wire rope B2 is near the center of the baton A, and the wire rope B is
Numerals 3 are connected near the right end of the baton A, respectively.

The elevating unit C is installed in the back of the ceiling for each wire rope B. The lifting unit C includes a motor, a winding drum, and a motor driver.
For example, the motor is connected to the winding drum via a gear, and the winding drum winds and sends the wire rope B when the motor rotates. Also,
The lifting unit C has a load detecting function of detecting a load applied to the wire rope B.

The lifting unit controller D includes a lifting unit C
The motor driver is controlled according to the load or the like generated on the motor. The lifting unit controller D is provided for each lifting unit C, and includes an arithmetic processing unit G and an A / D converter H
An I / O interface unit I for transmitting and receiving data to and from the lifting unit C; a transmission unit J for transmitting and receiving data to and from the synchronization controller E; a ROM for storing reference torque and the like; And a memory RAMa for storing the data. The A / D converter H receives data of the tilt detector LD attached to the baton A.

The synchronization controller E includes a transmission section K for transmitting and receiving data to and from the elevation unit controller D, an arithmetic processing section L, and upper and lower limit storage means RAM for storing upper and lower limits of the wire rope B.
b, so that when the baton A is moved up and down, the wire ropes B can be moved up and down at the same speed in synchronization with each other.

The operation panel F is a part where the operator performs an operation of instructing the baton A to elevate and lower, and includes an elevating push button switch operated when the baton A is elevated and lowered. The operation panel F has a push button switch for manually setting the upper and lower limits of the wire rope B.

The tilt detector LD is attached to the baton A. The tilt detector LD uses a built-in battery as a power supply
Is detected, and the detected inclination is sent to the A / D converter H of the elevation unit controller D as the inclination data of the radio signal. The tilt detector LD may supply power via a cable, or may transmit the detected tilt by wire. Further, as long as the inclination of the baton A corresponding to the suspended object can be detected, the mounting position of the inclination detector LD is not limited to the baton A.

A method of setting the upper and lower limits of the suspended object device configured as described above will be described below. The upper limit and the lower limit of the hanging device are arbitrarily set by the operator, and the upper limit indicates a position where the baton A can rise most, and the lower limit indicates a position where the baton A can lower most. The positions of the upper limit and the lower limit can be indicated by how much the wire rope B connected to the baton A has been wound or sent out from the initial state.

As shown in FIG. 2, it is assumed that a wire rope B1 whose upper and lower limits have been set is connected to one end of the baton A1. The synchronization controller E instructs the elevating unit controller D3 that controls the wire rope B3 connected to the other end of the baton A1 to perform setting of the upper and lower limits by the tilt detector LD1. The distance between the upper limit and the lower limit in B1 is notified. Note that the distance between the upper limit and the lower limit can be calculated based on how much the wire rope B1 has been sent when moving from the upper limit to the lower limit.

When the elevation unit controller D3 receives the command for setting the upper and lower limits and the distance between the upper and lower limits, it shifts to the upper and lower limit setting mode using the tilt detector. Elevating unit controller D3 shifted to upper / lower limit setting mode by tilt detector
Issues a command to the lifting unit C3 to wind the wire rope B3, and monitors the output of the tilt detector LD1 attached to the baton A1 via the A / D converter H3. Then, when the inclination detector LD1 detects the horizontal state, the motor is stopped. At that time, the upper limit of the inside of the synchronous controller E is determined by the extent to which the wire rope B3 has been wound (or fed) from the initial state. It is stored in the lower limit storage means RAMb.

The above procedure is shown in FIG. Since the upper limit of the wire rope B3 is determined, the lower limit of the wire rope B3 is calculated from the fact that the distance between the upper limit and the lower limit of the wire rope B1 is known. The calculated lower limit is also stored in the upper and lower limit storage means RAMb inside the synchronization controller E. In the present embodiment, the wire rope B3 is set from the upper limit, but after setting the lower limit first, the wire rope B3 is set based on the distance between the upper limit and the lower limit of the wire rope B1.
An upper limit of 3 may be set.

Next, the upper and lower limits of the wire rope B2 connected to other than both ends of the baton A1 are set. As shown in FIG. 4, after the upper and lower limits of the wire ropes B1, B3 at both ends of the baton A1 are set, the baton A1 is stopped at the upper limit.
Then, the synchronous controller E instructs the elevating unit controller D2 to set the upper and lower limits based on torque observation, and also sets the wire ropes B1, B at both ends of the baton A1.
Elevating unit controller D
Notify 2.

Upon receiving the command for setting the upper and lower limits and the distance between the upper and lower limits, the elevating unit controller D2 shifts to an upper and lower limit setting mode based on torque observation. The elevating unit controller D2 that has shifted to the upper / lower limit setting mode based on torque issues a command to the elevating unit C2 to wind the wire rope B2, and A / D converts the generated torque value of the motor transmitted from the elevating unit C2. Monitoring via the heater H2. When the generated torque exceeds the reference torque value recorded in the ROM 2, the motor is stopped on the assumption that the wire rope B2 is in a stretched state, and at that time, how much the wire rope B2 is wound from the initial state. The upper limit and lower limit storage means RAMb inside the synchronous controller E stores whether the data is taken (or sent) as an upper limit.

The above procedure is shown in FIG. As described above, the lower limit of the wire rope B2 is calculated from the upper limit of the wire rope B2 and the distance between the upper limit and the lower limit of the wire rope B1. The calculated lower limit is also stored in the upper and lower limit storage means RAMb inside the synchronization controller E. In the present embodiment, the upper limit of the wire rope B2 is set, but after setting the lower limit first, the upper limit of the wire rope B1 is set.
The upper limit of the wire rope B2 may be set based on the distance between the lower limits.

When the upper and lower limits of the wire rope B2 are set, winding is started from a state in which the wire rope B2 is slacker than the upper or lower limit of the wire rope B1, but the wire rope B2 is not slackened. There is no practical problem in starting from the state. At this time, wire rope B
2, the motor is stopped when the generated torque of the wire rope B2 becomes lower than the reference torque value.

The information stored in the upper / lower limit storage means RAMb is held by a built-in battery or the like regardless of whether the power of the hanging device is turned on or off. Therefore, if the position of the wire rope B is stored in the upper / lower limit storage means RAMb when the power of the hanging device is turned off, it is not necessary to set the upper and lower limits again when the power is turned on again.

According to this embodiment, after the upper and lower limits of the wire rope B1 connected to one end of the baton A1 are set, the set wire rope B1 is stopped at the upper limit, and the wire rope at the other end is set. B3 is wound up until the inclination detector LD1 detects the horizontal state, and the time can be automatically set as the upper limit of the wire rope B3. Also, wire ropes B1, B3 connected to both ends of the baton A1.
After the upper limit is set, the set wire rope B1,
B3 is stopped at the upper limit, and the state where the wire rope B2 is stretched is detected by winding while measuring the change in weight applied to the wire rope B2 connected to other than both ends of the baton A1,
This point can be automatically set as the upper limit of the wire rope B2. In addition, it is possible to automatically set the lower limits of the wire ropes B2 and B3 using the distance between the upper limit and the lower limit of the wire rope B1 that has already been set.

In the above embodiment, the baton A1
After setting the upper and lower limits of the wire ropes B1 and B3 at both ends connected to the wire rope, the upper and lower limits of the wire rope B2 existing between the wire ropes B1 and B3 are set. It is not limited to.

[0028]

As described above, according to the first aspect of the present invention, a plurality of wire ropes for suspending a suspended object, an elevating unit for winding / feeding the wire rope, and the suspended object are kept horizontal. An operation panel having an upper / lower limit setting function for setting an upper limit which is a winding limit and a lower limit which is a sending limit for at least one wire rope; When the wire rope is fixed at the upper limit (or lower limit), the elevating / lowering unit control means for automatically winding / sending another wire rope until the inclination detector detects the horizontal position, and winding / sending another wire rope. Upper and lower limit storage means for storing the stop position as an upper limit (or lower limit) is provided, so that setting of the upper and lower limits of the wire rope can be simplified. An effect that it is possible to provide a suspension thereof device.

According to a second aspect of the present invention, there are provided a plurality of wire ropes for suspending a suspended object, an elevating unit having a load detecting function of winding / unwinding the wire rope and detecting a load applied to the wire rope. An operation panel having an upper / lower limit setting function for setting an upper limit which is a winding limit and a lower limit which is a sending limit for at least two wire ropes, and fixing the wire rope having the upper and lower limits to the upper limit (or lower limit). The lifting / lowering unit control means for automatically winding / sending another wire rope until the load detector falls within a predetermined range when the load detector is within a predetermined range, and the upper limit (or the upper limit when the winding / sending of the other wire rope is stopped) Upper and lower limit storage means for storing the upper and lower limits of the wire rope. An effect that it is possible to provide an object device.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of a suspended object device.

FIG. 2 is a partial schematic configuration diagram of a hanging device illustrating a process of setting upper and lower limits of a wire rope.

FIG. 3 is a flowchart illustrating a process of setting upper and lower limits of a wire rope.

FIG. 4 is a partial schematic configuration diagram of a hanging device illustrating a process of setting upper and lower limits of another wire rope.

FIG. 5 is a flowchart illustrating a process of setting upper and lower limits of another wire rope.

[Explanation of symbols]

 A baton (hanging object) B wire rope C lifting unit D lifting unit control means LD tilt detector F operation panel RAMb upper / lower limit storage means

Claims (2)

[Claims] 1. A plurality of wire ropes for suspending a suspended object, an elevating unit for winding / sending the wire rope, an inclination detector for detecting whether the suspended object is kept horizontal, and at least one wire rope. An operation panel with upper and lower limit setting functions to set the upper limit which is the winding limit and the lower limit which is the sending limit, and a tilt detector when the wire rope with the upper and lower limits fixed to the upper limit (or lower limit) Lifting / lowering unit control means for automatically winding / sending another wire rope until the apparatus detects horizontality, and upper / lower limit storage means for storing the position where the winding / sending of the other wire rope is stopped as an upper limit (or lower limit). And a hanging device. 2. A plurality of wire ropes for suspending a suspended object, an elevating unit having a load detection function for winding / unwinding the wire rope and detecting a load applied to the wire rope, and winding up at least two wire ropes. An operation panel having an upper and lower limit setting function for setting an upper limit which is the upper limit and a lower limit which is the limit of feeding, and a load detector which is predetermined when the wire rope having the upper and lower limits set to the upper limit (or lower limit) is fixed. Lifting / lowering unit control means for automatically winding / sending another wire rope until the distance falls within the range, and upper / lower limit storage means for storing a point at which winding / sending of the other wire rope is stopped as an upper limit (or lower limit). And a hanging device.