JPH06219671A - Door machine inspection device - Google Patents

Abstract

PURPOSE:To simply judge whether maintenance is required, by furnishing a resisting means in connection between a power supply and a door motor circuit, and connecting parallel an opening/closing means which impresses a control voltage lower than the specified control voltage on the door motor circuit when it is opened. CONSTITUTION:An inspection device 1 is installed in a door machine circuit, and a variable resistor 4 and a switch 3 are connected in series to a door motor circuit 2. In the condition that the elevator is at a standstill, the switch 3 is put off and a control voltage lower than the specified control voltage is impressed on the door motor circuit 2 so that the torque of the door motor is sunk, and the size of the mechanical resistance of the door machine is judged from the opening/closing time of the door. This allows simple judging about whether the door machine requires maintenance such as cleaning, oil supply, etc., and fine inspection works can be done.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inspection device for an elevator door machine. In particular, the present invention relates to an inspection device for a door machine, which changes the control voltage in the operation of an elevator door machine and determines the quality of the door by checking the operating state of the door.

[0002]

2. Description of the Related Art Conventionally, there is no device for inspecting the mechanical resistance of a door machine (door mechanism), and an inspection interval is set according to the installation environment of the elevator and the number of times of traveling. Maintenance work such as cleaning door rails and sill grooves was being performed.

That is, the maintenance of the door machine is performed by disassembling, cleaning, refueling, etc. at a predetermined cycle.

[0004]

The conventional door machine as described above has a problem that the necessity of maintenance such as cleaning and refueling cannot be easily determined, and detailed inspection cannot be performed. Further, there is a problem that a detailed inspection cannot be performed from a distant place before the failure of the door opening / closing operation occurs.

The present invention has been made in order to solve the above-mentioned problems, and an object thereof is to obtain an inspection device for a door machine which can easily judge the necessity of maintenance. Another object of the present invention is to provide an inspection device for a door machine that can determine whether maintenance is required at a distance.

[0006]

An inspection device for a door machine according to claim 1 of the present invention comprises the following means. [1] A resistance means connected between the power supply and the door motor circuit. [2] Opening / closing means connected in parallel to the resistance means and applying a control voltage lower than a predetermined control voltage to the door motor circuit when opened.

An inspection device for a door machine according to a second aspect of the present invention comprises the following means. [1] A resistance means connected between the power supply and the door motor circuit. [2] Opening / closing means connected in parallel to the resistance means and applying a control voltage lower than a predetermined control voltage to the door motor circuit when opened according to a command from the remote monitoring control center. [3] Abnormality determination means for transmitting the presence / absence of an abnormal opening / closing operation of the door to the remote monitoring control center.

[0008]

In the door machine inspection device according to the first aspect of the present invention, the opening / closing means connected in parallel to the resistance means connected between the power supply and the door motor circuit causes the predetermined control voltage to be exceeded when the door is opened. A low control voltage is applied to the door motor circuit.

According to a second aspect of the present invention, there is provided a door machine inspection device, wherein an opening / closing means connected in parallel with a resistance means connected between a power source and a door motor circuit is operated based on a command from a remote monitoring control center. When opened, a control voltage lower than a predetermined control voltage is applied to the door motor circuit. The presence / absence of an abnormality in the opening / closing operation of the door is transmitted to the remote monitoring control center by the abnormality determining means.

[0010]

【Example】

Example 1. The configuration of the first embodiment of the present invention will be described with reference to FIG. First Embodiment FIG. 1 is a diagram showing a first embodiment of the present invention.

In FIG. 1, 1 is an inspection device for a door machine according to claim 1 of the present invention, which is connected between a power source and a door motor circuit described later, 2 is a door motor circuit, and 3 is between the power source and the door motor circuit 2. Switch 4 connected to is also a variable resistor connected between the power supply and the door motor circuit. The switch 3 is installed at an appropriate place in a car such as a control panel.

In FIG. 1, the dotted line shows the inspection device 1, which is composed of a switch 3 and a variable resistor 4.
As shown in FIG. 1, when the switch 3 is turned off, the variable resistor (Rv) 4 is tangentially connected to the door motor circuit 2 in series.

The opening / closing means according to claim 1 of the present invention corresponds to the switch 3 in the first embodiment of the present invention described above, and the resistance means according to claim 1 of the present invention is the variable resistance in the first embodiment. It corresponds to the container 4.

Next, the operation of the above-described first embodiment will be described. In the inspection of the elevator, the mode switching switch in the car switches the automatic operation mode to the inspection operation mode, and the operator opens the switch 3 while the door is fully opened by the opening switch in the car.

Subsequently, when the door is closed by the closing switch in the car, a control voltage lower than a predetermined control voltage is applied to the door motor circuit 2. If the door machine (door mechanism) is normal and the mechanical resistance is small,
Fully close within 5 seconds).

When the door is opened by the opening switch in the car, a control voltage lower than a predetermined control voltage is similarly applied to the door motor circuit 2. If the door machine (door mechanism) is normal and the mechanical resistance is small,
Fully open within 5 seconds.

Here, the opening and closing time of the door is as follows:
The time is measured by a clock at the same time as the operation of the closing switch, and if it is longer than the above predetermined time, it is determined to be abnormal. Further, the timer may be automatically started by turning off the switch 3 and the door opening / closing sensor may be automatically timed by a door opening / closing sensor.

The first embodiment of the present invention, as described above,
The inspection device 1 is incorporated in the door machine circuit, and the variable resistor 4 and the switch 3 are connected in series to the door motor circuit 2. Then, when the elevator is stopped, by turning off the switch 3, a control voltage lower than a predetermined control voltage is applied to the door motor circuit 2, the torque of the door motor is reduced, and the mechanical resistance of the door machine is reduced by the opening / closing time of the door. The size is judged. Therefore, the necessity of maintenance such as cleaning and refueling of the door machine can be easily determined,
The effect is that a detailed inspection can be performed.

Example 2. In the first embodiment described above, the operator needs to operate on site, but in the second embodiment, the necessity of maintenance of the door machine can be determined even if the operator does not come to the site.

The configuration of the second embodiment of the present invention is shown in FIGS.
Will be described with reference to. FIG. 2 shows the second embodiment of the present invention.
It is a figure which shows the whole system containing. Also, FIG.
FIG. 8 is a diagram showing Embodiment 2 of the present invention. In each figure, the same reference numerals indicate the same or corresponding parts.

In FIG. 2, 5 is a remote monitoring control center, 6 is a monitoring control device composed of a CPU in the remote monitoring control center 5, 7 is a telephone line, and 8 is a monitoring control device on the center side through a telephone line 7. 6 is a supervisory control device on the elevator side, which is connected to the elevator control panel 6 and attached to the elevator control panel 9.

In FIG. 3, 1A is an inspection device for a door machine according to claim 2 of the present invention, which is connected to a power source, and 2 is a door motor circuit connected to the inspection device 1A. Also,
Reference numeral 4 is a variable resistor (Rv) connected between the power source and the door motor circuit 2.

Further, in FIG. 3, A1 is an a contact of a relay A (not shown) (with a time limit), which is closed when the relay A is ON. A2 and A3 are contact points of the relay A and are closed when the relay A is OFF. CL is an a contact of a relay CLOSE (not shown), and OP is an a contact of a relay OPEN (not shown).
In addition to the components described above, a CPU for controlling the relays, a transmission / reception circuit for transmitting / receiving signals, and the like are included although not shown.

By the way, the opening / closing means according to claim 2 of the present invention corresponds to the relay A and its contact A1 in the second embodiment of the present invention described above, and the resistance means according to claim 2 of the present invention is the embodiment. 2 corresponds to the variable resistor 4, and the abnormality determining means according to claim 2 of the present invention is, in the second embodiment, the relay A, its contacts A2 and A3, the relay CLOSE, its contact CL, the relay OPEN, and its contact OP, It is composed of a CPU and a transmission / reception circuit.

Next, the operation of the above-described second embodiment will be described. The elevator switches from the automatic operation mode to the inspection operation mode according to a command from the remote monitoring and control center 5. After fully closing the door, a command to turn off the relay A for a predetermined time (for example, 5 seconds) is given simultaneously with the door closing command. If the door is fully closed within this time, the door open / close sensor drives the relay CLOSE to turn on the CL contact, and the remote monitoring control center 5 is notified that the door is fully closed within a predetermined time.

After the door is fully opened, the relay A is turned off for a predetermined time (for example, 5 seconds) simultaneously with the door opening command.
Give a command to F. If the door is fully opened within this time, the door open / close sensor will drive the relay OPEN and open the OP.
The contact is turned on, and it is transmitted to the remote monitoring and control center 5 that the door is fully opened within a predetermined time.

The remote monitoring and control center 5 judges that the opening / closing operation of the door is normal if it receives a signal indicating that the door is fully closed or fully opened after issuing the inspection command. Do this for all floors.

The second embodiment of the present invention, as described above,
When the inspection (test) command of the door machine is received from the remote monitoring control center 5, the contact A1 of the relay A is turned off.
Then, a control voltage lower than a predetermined control voltage is applied to the door motor circuit 2. When the door is fully closed in response to the door closing command, a fully closed (CLOSE) signal is transmitted, and when the door is fully opened in response to the door opening command, a fully open (OPEN) signal is transmitted. Further, if it cannot be fully closed and fully opened within a predetermined time, the fully closed signal and the fully opened signal are not transmitted. As a result, the remote monitoring and control center 5
Can judge the magnitude of mechanical resistance of the door machine. That is, it is possible to always judge whether or not the maintenance of the door machine is required at a distant place, and it is possible to perform a detailed inspection before the occurrence of the failure of the opening and closing of the door.

[0029]

As described above, the door machine inspection device according to claim 1 of the present invention is opened by connecting the resistance means connected between the power supply and the door motor circuit and the resistance means in parallel. Since it is provided with the opening / closing means for applying a control voltage lower than a predetermined control voltage to the door motor circuit, it is possible to easily determine the necessity of maintenance.

As described above, the inspection apparatus for a door machine according to the second aspect of the present invention includes a resistance means connected between the power source and the door motor circuit, and a resistance means connected in parallel to the resistance means. An opening / closing means for applying a control voltage lower than a predetermined control voltage to the door motor circuit when opened based on the command of (1), and an abnormality determining means for transmitting the presence / absence of an abnormal opening / closing operation of the door to the remote monitoring control center. Since it is provided, there is an effect that the necessity of maintenance can be determined at a distance.

[Brief description of drawings]

FIG. 1 is a diagram showing a first embodiment of the present invention.

FIG. 2 is a diagram showing a remote monitoring control system using the first embodiment of the present invention.

FIG. 3 is a diagram showing a second embodiment of the present invention.

[Explanation of symbols]

 1, 1A Door machine inspection device 2 Door motor circuit 3 Switch 4 Variable resistor 5 Remote monitoring control center 6 Monitoring control device 7 Telephone line 8 Monitoring control device 9 Elevator control panel

Claims (2)

[Claims] 1. A resistance means connected between a power source and a door motor circuit, and an opening / closing means connected in parallel to the resistance means and applying a control voltage lower than a predetermined control voltage to the door motor circuit when opened. Door machine inspection device characterized by being equipped. 2. A resistance means connected between the power supply and the door motor circuit, and a control voltage lower than a predetermined control voltage when the resistance means is connected in parallel with the resistance means and opened according to a command from the remote monitoring control center. An inspection device for a door machine, comprising: an opening / closing means for applying to a door motor circuit; and an abnormality determining means for transmitting the presence / absence of an abnormality in the opening / closing operation of the door to the remote monitoring control center.