JPH08102210A - Elevator and lighting system - Google Patents

Abstract

PURPOSE: To specify the cause of disabled elevation in a simple structure by detecting voltage on a power supply line and displaying it, if not more than a certain value, when winding and unwinding a rope to suspend an elevating part on which an electric apparatus is mounted with a motor for elevation. CONSTITUTION: A luminaire 9 is mounted on an elevating part 10 and the elevating part 10 is suspended by a wire rope 6 so that the wire rope 6 is wound or unwound on a drum 7 with a motor 5 to elevate the elevating part 10 and the luminaire 9. At this time, voltage on a power supply line 11 connected to the motor 11 is detected by a voltage detecting means 12 and the voltage if not more than a certain value is displayed on a display part 13 provided on the lower face of an elevator mainframe 3. When elevation is disabled, the display 13 is confirmed to specify the voltage to be abnormal on the power supply line 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevating device for elevating and lowering an electric device such as a lighting fixture which is installed on a high ceiling such as a factory or a gymnasium and an illuminating device using this device.

[0002]

2. Description of the Related Art Conventionally, a lifting device of this type is disclosed in, for example, Japanese Patent Laid-Open No. 64-89205. A plurality of the lifting devices are provided on high ceilings of factories and gymnasiums. In general, the lifting device is equipped with a motor as an electric motor and a winding drum that winds or unwinds a wire rope as a cord, which is normally and reversely rotated by the motor. The wire rope is routed through a plurality of wire guides, and suspends an elevating part to which a lighting fixture as an electric device is attached. By winding the wire rope around the winding drum or unwinding the wire rope, the elevating unit is moved up and down, whereby maintenance and inspection of the luminaire can be performed on the lower floor surface. In other words, when using the lighting equipment, such as lighting, so that this equipment is in a high position,
Suspend the lifting part so that it is stored and held in the lifting device body,
When performing maintenance inspections such as lamp replacement due to lamp life, lower the lighting fixture to a height where the maintenance and inspection work can be performed.

The lifting device includes a power supply line to the electric motor,
A lamp power line to the lighting fixture and a control signal line for controlling the operation of the electric motor are connected. The control signal line is wired from the lower operation section, and the operation section can be selected from up / down / stop / down operations. By operating this operation part, a control signal is input to the electric motor through the control signal line, and the electric motor drives the take-up drum by the electric power from the power supply line based on the content of this control signal, and moves up and down the elevating part. It is designed to work.

The elevating part is locked by a lock mechanism in the elevating device main body, and when descending, this lock is released by the operation of the electric motor.

Incidentally, the lamp power supply line is connected to a contact portion between the elevating part and the lifting / lowering device main body, and when the lifting / lowering part is housed and held in the lifting / lowering device main body, electric power is supplied from the contact portion to the lighting fixture. Power can be supplied.

[0006]

By the way, a commercial AC power source is usually connected to the power source line, and a voltage of 100 V or 200 V is applied. The electric motor operates with this voltage value as a rating, but it is possible that the voltage value has not reached a predetermined voltage value due to, for example, a voltage drop or miswiring of a commercial power source. As described above, when the voltage value is lower than the predetermined value, the lifting unit may not perform the lifting operation even if the lifting operation is performed by the operation unit. This is because when the voltage of the power supply input to the electric motor is below a predetermined value, the electric motor does not operate with an output enough to drive the take-up drum and the like, and when there is a lock mechanism in the lifting device, It is conceivable that the electric motor does not operate at an output sufficient to unlock the lock mechanism.

When the voltage of the power supply line is below a predetermined value, the output of the commercial power supply to which the power supply line is connected and the wiring state are inspected in an electric room or a switchboard to obtain a normal voltage value. If so adjusted, the lifting device can be restored.

However, if the cause of the failure of the lifting operation is a failure of the lock mechanism in the lifting device, miswiring of the control signal line, abnormal winding of the winding drum, etc., it is necessary to inspect the inside of the lifting device body. Cannot identify the cause. In case of such a cause, the cause cannot be known unless the inside of the lifting device is inspected, but in order to inspect the inside of the lifting device, a scaffold or tower for construction is assembled and the lifting device is installed. You have to climb to the height that is set, which is a very troublesome work. If the cause of the inability to move up and down is an abnormality in the power supply line, the work becomes useless.

The present invention solves the above-mentioned problems, and provides an elevating device and a lighting device using this device, in which the cause of the elevating operation of the elevating device can be specified from below with a simple structure. The purpose is to

[0010]

The lifting device according to claim 1 is
A device main body that can be installed on the ceiling surface, which houses an elevating part to which an electric device is attached, a rope that suspends the elevating part, an electric motor that winds the elevating part to elevate the elevating part, and is attached to the ceiling surface. It is provided with a voltage detecting means for detecting the voltage of the power source line to be connected, and a display portion provided on the lower surface of the apparatus main body for displaying when the voltage detected by the voltage detecting means is below a certain value. It is characterized by

According to a second aspect of the present invention, there is provided an elevating device which houses an elevating part to which an electric device is attached, a rope for suspending the elevating part, and an electric motor which winds up the elevating part to elevate the elevating part. Device mounted on the surface, voltage detection means for detecting the voltage of the power supply line connected to this electric motor, and when the voltage detected by this voltage detection means is out of the range of a predetermined value, the device main body is displayed. And a display portion provided on the lower surface.

The lifting device according to claim 3 is the lifting device according to claim 1 or 2.
In the lifting device described above, the voltage detecting means is characterized in that an error range of about 10% above and below the rated voltage of the electric motor is a predetermined value.

A lifting device according to a fourth aspect of the present invention is provided with the first to third aspects.
In the lifting device according to any one of the aspects, the display unit is a light emitting diode, and displays by turning on and off.

An elevating device according to a fifth aspect is the elevating device according to any one of the first to third aspects.
In the lifting device according to any one of the aspects, the display unit is a light emitting diode that emits light in a plurality of colors, and displays by lighting different colors.

The lighting equipment of claim 6 is the lighting equipment of claims 1 to 5.
It is characterized by comprising the lifting device according to any one of the above and a lighting fixture attached to the lifting unit as an electric device.

[0016]

According to the lifting device of claim 1, when the voltage detected by the voltage detecting means for detecting the voltage of the power source connected to the electric motor is less than a predetermined value, the display unit provided on the lower surface of the main body of the device displays a display. Therefore, when the lifting / lowering operation cannot be performed, the presence / absence of a voltage abnormality in the power supply line can be specified by checking the display unit before inspecting the lifting / lowering apparatus main body.

According to a second aspect of the present invention, when the voltage detected by the voltage detecting means for detecting the voltage of the power source connected to the electric motor is out of the predetermined range, the display unit provided on the lower surface of the main body of the apparatus is Since it displays, when the lifting operation is impossible,
By checking the display unit, it is possible to identify the presence or absence of voltage abnormality in the power supply line before inspecting the lifting device body.

The lifting device according to claim 3 is the lifting device according to claim 1 or 2.
In addition to the operation of the elevating device described above, the voltage detecting means has an error range of about 10% above and below the rated voltage of the electric motor as a predetermined value. Therefore, even if the elevating operation is possible, the voltage value is abnormal. You can confirm that.

A lifting device according to a fourth aspect of the present invention is provided with the first to third aspects.
In addition to the operation of the lifting device according to any one of the above, the display unit is a light emitting diode, and displays by turning on and off.

A lifting device according to a fifth aspect of the present invention is the lifting device according to any one of the first to third aspects.
In addition to the operation of the lifting device according to any one of the above, the display unit is a light emitting diode that emits light in a plurality of colors, and displays by lighting in different colors.

The lighting equipment of claim 6 is the lighting equipment of claims 1 to 5.
In addition to the operation of the lifting device according to any one of the above, a lighting fixture is attached to the lifting unit as an electric device.

[0022]

Embodiments of the present invention will be described below with reference to the drawings. Note that the same parts in the drawings will be described with the same reference numerals.

FIG. 1 is a perspective view showing the overall construction of a lighting device using an elevating device which is an embodiment of the present invention. In the figure, a plurality of lighting devices 1 are installed on a high ceiling such as a factory or a gym. 3 is the lifting device body, which is a necessary device inside,
It is configured by a main body case 4 in which parts are stored.

FIG. 2 is a schematic sectional view of the lighting device. In the main body case 4, a motor 5 as an electric motor and a winding drum 7 for winding or unwinding a wire rope 6 as a cord, which is rotated by the motor 5 in a forward and reverse direction, are incorporated. . The wire rope 6 has a plurality of wire guards 8
It is routed in the main body case 4 via. Reference numeral 9 denotes a luminaire, which includes a lamp (not shown), a reflector provided to face the lamp, and a socket portion for fixing and supporting these. The lighting fixture 9 is attached to the elevating part 10,
The elevating part 10 is suspended by a wire rope 6. When the wire rope 6 is wound around the winding drum 7 or unwound, the elevating part 10 and the lighting fixture 9 are moved up and down. A power source line 11 is connected to the motor 5 as a power source and is connected to a commercial AC power source of 100V. 1
2 is a voltage detecting means, which is connected to the power supply line 11;
The voltage of the power supply line 11 is detected by a known voltage detection circuit. Reference numeral 13 denotes a display unit composed of a light emitting diode that performs display based on the detection output of the voltage detection unit 12, and is provided so that the light emitting unit of the light emitting diode is exposed from the lower surface of the main body case 4.

When performing maintenance and inspection such as lamp replacement due to the life of the lamp, the lighting apparatus 9 should be lowered to a lower position slightly above the floor surface and stopped at that position as shown in FIG. Thus, the maintenance and inspection of the lighting fixture 9 can be easily performed.

FIG. 3 shows an electrical configuration of the lighting device 1 having such a configuration.

A pair of two lamp power supply lines 14 are connected to the lighting circuit of each lifting / lowering device main body 3, and the lamp power is output from the output terminal of the lighting distribution board 15. Also,
A set of three control signal lines 16 is connected to the motor 5, and a control signal from an elevating controller 18 configured by a CPU in the elevating control panel 17 is transmitted via the control signal line 16. , It is designed to control the lifting operation.
The three control signal lines 16 are respectively a rising signal output line,
It is a descending signal output line and a common line (ground). A timer 19 for controlling the lifting time is connected to the lifting controller 18.

Reference numeral 20 denotes an elevating operation panel as an elevating operation unit installed on the wall surface of the building where the lighting device 1 is installed, and each of an up switch, a down switch and a stop switch is provided as a push button switch. There is. The elevating operation panel 20 is capable of elevating the three sets of elevating device main bodies 3, and these operation outputs are input to the elevating controller 18 of the elevating control panel 17 via signal lines and via the control signal lines 16. A lifting control signal is output to the motor 5 of the lifting device body 3.
The lifting controller 18 and the lighting distribution board 15 are connected by a remote control relay control line, and the power supply line to the lighting fixture is opened and closed according to the lifting operation.

Next, the operation of this embodiment will be described.

The voltage detecting means 12 constantly detects the voltage of the power supply line 11, and when the rating of the motor 5 is 200V and the voltage is 180% or less which is 10% lower than the rating, the light emitting diode of the display unit 13 is turned on. And display. That is, when the rated voltage of 200 V is applied to the motor 5, the light emitting diode remains off.

If the lifting / lowering device body 3 does not perform the lifting / lowering operation even if the lifting / lowering operation panel 20 is operated, the lighting state of the display unit 13 is confirmed.

At this time, when the display unit 3 is on, the voltage of the power supply line 11 may not reach the rated voltage value of the motor 5. Power line 11
If the voltage is less than a predetermined value, the output and wiring of the commercial power source to which the power supply line 11 is connected are inspected in an electric room or switchboard, and if the voltage is adjusted to a normal value, it will move up and down. The raising / lowering operation of the apparatus body 3 can be restored.

If the display unit 3 is not lit,
Since the rated voltage of the motor 5 is applied to the power supply line 11, the reason why the lifting / lowering operation is stopped is the failure of the lock mechanism 21 in the lifting device, the incorrect wiring of the control signal line, the abnormal winding of the winding drum, etc. The inside of the lifting device is inspected.

As described above, when the lifting / lowering device main body 3 cannot be lifted / lowered, it is possible to identify the presence / absence of a voltage abnormality in the power supply line before checking the lifting / lowering device main body 3 by checking the display section 3. You can

In the present embodiment, the display unit 3 displays the voltage abnormality by turning on the light emitting diode. However, the abnormality may be displayed by turning off the abnormality so that it is normally turned on. The light emitting diode that emits light as described above may be used to display an abnormal voltage or a normal voltage by lighting different colors.

Further, the display of the display unit is within the range of this predetermined value when the applied voltage of the power supply line is below the predetermined value or exceeds the predetermined value, or the error range of about 10% up and down is set as the predetermined value. It may be displayed when it is outside. This is because the take-up drum can be driven if the rated voltage of the motor is within an error range of about 10% above and below, but the error range is not limited to about 10% above and below, and the desired range is not limited. Can be set to.

[0037]

According to the lifting and lowering device of the present invention, when the voltage detected by the voltage detecting means for detecting the voltage of the power source connected to the electric motor is less than a certain value, the display unit provided on the lower surface of the main body of the device is Since the display is performed, when the lifting operation becomes impossible, it is possible to identify the presence or absence of voltage abnormality of the power supply line by inspecting the display unit before inspecting the lifting device body.
Trouble check work can be done efficiently.

According to a second aspect of the present invention, when the voltage detected by the voltage detecting means for detecting the voltage of the power source connected to the electric motor is outside the predetermined range, the display unit provided on the lower surface of the main body of the apparatus is Since it displays, when the lifting operation is impossible,
By checking the display unit, it is possible to identify the presence or absence of a voltage abnormality in the power supply line before inspecting the lifting / lowering device main body, and the failure inspection work can be performed efficiently.

The lifting device according to claim 3 is the lifting device according to claim 1 or 2.
In addition to the effect of the lifting device described above, the voltage detecting means has an error range of about 10% above and below the rated voltage of the electric motor as a predetermined value, so that the voltage value is abnormal even when the lifting operation is possible. You can confirm that.

An elevating device according to a fourth aspect is the elevating device according to the first to third aspects.
In addition to the effect of the elevating device according to any one of the above, since the display unit is a light emitting diode and displays by turning on and off, visibility is improved.

The elevating device of claim 5 is the same as that of claims 1 to 3.
In addition to the effect of the elevating device according to any one of the above, the display unit is a light emitting diode that emits light in a plurality of colors, and the display is performed by lighting different colors. Therefore, the visibility is improved.

The lighting equipment of claim 6 is the lighting equipment of claims 1 to 5.
In addition to the effect of the lifting device according to any one of the above, a lighting fixture is attached to the lifting unit as an electric device, and the same effect can be obtained when the lighting fixture is inspected.

[Brief description of drawings]

FIG. 1 is an external perspective view showing a lighting device using an elevating device according to an embodiment of the present invention.

FIG. 2 is a schematic sectional view of FIG.

FIG. 3 is a schematic electrical configuration diagram of a lighting device using the lifting device according to the embodiment of the present invention.

[Explanation of reference numerals] 1 ... Lighting device, 3 ... Lifting device body, 5 ... Motor as electric motor, 6 ... Wire rope as rope, 9 ... Lighting fixture, 10 ...・ Elevating part, 11 ・ ・ ・ Power supply line, 12 ・ ・ ・
Voltage detection means, 13 ... Display section.

Claims (6)

[Claims] 1. An apparatus main body, which is mounted on a ceiling surface, which houses an elevating section to which an electric device is attached; a rope for suspending the elevating section; and an electric motor for winding the rope to elevate the elevating section. A voltage detecting means for detecting the voltage of a power supply line connected to the electric motor; and a display portion provided on the lower surface of the apparatus main body for displaying when the voltage detected by the voltage detecting means is below a certain value. And a lifting device. 2. An apparatus main body which is mounted on a ceiling surface, which houses an elevating part to which an electric device is attached; a rope for suspending the elevating part; and an electric motor for winding the rope to elevate the elevating part. A voltage detecting means for detecting the voltage of the power supply line connected to the electric motor; and a display provided on the lower surface of the main body of the apparatus for displaying when the voltage detected by the voltage detecting means is out of a predetermined value range. A lifting device comprising: 3. An elevating device according to claim 1, wherein the voltage detecting means has an error range of about 10% above and below the rated voltage of the electric motor as a predetermined value. 4. The display unit is a light emitting diode, which is lit,
The lifting device according to any one of claims 1 to 3, wherein display is performed by turning off the light. 5. The elevating device according to claim 1, wherein the display unit is a light emitting diode that emits light of a plurality of colors, and displays by lighting different colors. 6. A lighting device comprising: the lifting device according to any one of claims 1 to 5; and a lighting fixture attached to the lifting unit as an electric device.