JPS631686A - Maintenance driving device for elevator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] <Industrial application field> The present invention relates to an elevator maintenance operation device.

<Prior Art> The hoistway of an elevator is equipped with safety devices and various other devices and equipment necessary for safe operation of the elevator. In order to confirm that these Sv& devices are operating normally, maintenance personnel conduct periodic inspections.

This inspection work normally requires two maintenance personnel.
For example, one of the maintenance personnel riding on the top of an elevator car operates the elevator using a control panel installed at the top of the car. The other maintenance worker works on the equipment installed in the hoistway while the car is moving or stopped.

For this reason, Utility Model Application Publication No. 50-136160 proposes this type of elevator maintenance and operation device, and this device allows inspection of equipment installed at the bottom of the hoistway, that is, other than the bit. The system was designed so that it could be performed by one maintenance worker.

<Problems to be solved by the invention> In the conventional maintenance operation device, when inspecting the equipment inside the bit, one of the maintenance personnel enters the bit and performs the work, while the other maintenance personnel performs the work. You will get into the car and drive the elevator.

For this reason, two maintenance personnel are still required, and there is also a risk that communication between the maintenance personnel will be insufficient, leading to a disaster.

In order to solve these problems, an invention by the same applicant as the present application allows a single maintenance person inside the bit to safely perform inspection work on the on-site equipment and operation of the elevator car. An elevator maintenance and operation device that can perform the following has been proposed.

By the way, inspection work inside the bit involves measuring the amount of elongation of the main rope suspending the car and counterweight, and transmitting signals between the car and the control device installed in the machine room. There is work to check the running status of the moving cable for transmission, and when performing these works, the elevator should be in normal operation and
It is necessary to drive to the top or bottom floor at high speed, so one of the maintenance personnel still enters the bit and
It is necessary for the other maintenance worker to get into the car and operate the elevator.

The present invention aims to eliminate these drawbacks, and its purpose is to provide an elevator maintenance and operation device that allows a single maintenance person inside the bit to perform various maintenance operations.

Means for Solving the Problems> In order to achieve the above object, the present invention includes a high-speed operation selector switch for switching to high-speed operation mode, and a high-speed operation changeover switch for switching to high-speed operation mode, on a portable controller installed at the other end of the transmission line. A blocking circuit forming means is installed at the other end to prevent operation and registration of the operation panel, and a registration circuit forming means is provided to connect the operating device and operate a registration circuit for registering a car call on a specific floor. It is characterized by

Since the elevator maintenance and operation device according to the present invention is configured as described above, first, the operating device is connected, and the blocking circuit is activated by the blocking circuit forming means, and the blocking circuit is installed inside and above the elevator car. Operation of the driver's control panel and operation of the hall call registration device are blocked. Next, when the high-speed operation selector switch on the operating device is switched to the high-speed operation side as required for maintenance work, etc., the registration circuit forming means of the operating device is operated, and the maintenance staff inside the bit registers a car call for a specific floor. can be done even from inside the bit! In this way, one maintenance worker inside the BIT operates the operating device connected to the other end of the transmission line, and while operating the elevator car, inspects the BIT equipment and performs maintenance work. It is possible to measure the amount of cable elongation and check the running status of the moving cable.

During this inspection work, a blocking circuit prevents anyone other than maintenance personnel from operating the operation panel inside or above the elevator car or the hall call registration device, so maintenance personnel must Inspection work can be performed safely.

<Embodiment> FIG. 4 is a longitudinal sectional view of an embodiment of the elevator maintenance and operation device according to the present invention.

A control device 6a is installed in a machine room 2a provided at the top of the hoistway 1a. There is a drive machine 4a which is controlled and driven by this control device 6a, and a car 3a is connected thereto via a rope τ.

There are operation panels D1 and D2 inside and above the car 3a.
By providing this, it is possible to raise and lower the car 3a. A transmission line 12, one end of which is connected to the control device 6a, runs inside the hoistway 1a along the side wall to the bit 7.
Plug receiver 11 provided at 7a
The other end is connected to.

The maintenance person 14 inside the bit 7a uses a portable operating device 13.
By attaching and operating the plug receiver 11 to the plug receiver 11, the car 3a can be operated. Operator 13
At the same time when the plug receiver 11 is attached to the plug receiver 11, a blocking circuit is activated by the blocking circuit forming means to block the operation of the operation panels D1 and D2 and the operation circuit of the hall call registration device 18.

FIG. 2 shows the operating device 13.

A plug 16 is fixed to the end of the cable 15, and the plug 16 allows the operating device 13 to be attached to the plug receiver 1. This operating device 13 includes an emergency stop switch 13a,
A silver 13b for upward operation and a silver 13c for downward operation, which are the registration circuit forming means 19, and a high-speed operation changeover switch 13
Equipped with d.

FIG. 3 shows a wiring diagram of the terminal portion of the plug 16.

A shorting wire is used as the blocking circuit forming means 17 to short-circuit between the first and second terminals. Also, between the third and fourth terminals there is silver 13b for upward operation, and between the third and fifth terminal there is silver 13b for downward operation.
3c, and these two constitute the registration circuit forming means 19. An emergency stop switch 13a between the sixth and seventh terminals,
A high-speed operation selector switch 13d is connected between the eighth and ninth terminals.

FIG. 1 shows a circuit diagram of the main parts of an elevator maintenance and operation device.

The parts surrounded by dotted lines in the figure are the respective means shown in the above explanation.

Between the sixth and seventh terminals of the plug 16 connected to the power supply terminal P, there is a normally closed contact 43PT of the bit operation relay 43PT.
2 is connected. Further, between the seventh terminal of the plug 16 and the power supply terminal N, an elevator stop switch ES, a safety device switch S, and an elevator emergency stop relay 50 are connected.
are connected in series.

A switch OM and a low-speed operation relay 43D that enables low-speed operation on the car are connected in series between power terminals PN.

Similarly, the switch M and the low-speed operation relay 43C that enables low-speed operation in the car are connected to the power terminal P.
-N is connected in series. A bit operation relay 43 is connected between the high-speed operation relay 43G and the contact of the switch M.
The normally closed contact 43PT6 of PT is connected. A bit operation relay 43PT is connected between the connection point between the high-speed operation relay 43G and the normally closed contact 43PTE, and the power supply terminal P.
The normally open contact 43 P T 4 and the high-speed operation changeover switch 13d of the operating device 13 are connected in series.

The first terminal of the plug 16 and the power terminal P are connected, and the second terminal of the plug 16 and the power terminal N are connected via a shorting wire.
A bit operation relay 43PT for operating the car inside the bit is connected.

A normally open contact 43PT of a bit operation relay 43PT is connected between the third terminal of the plug 16 and the power supply terminal P,
Between the fourth terminal of the plug 16 and the power supply terminal N, there are normally open contacts 50 of a rising operation relay 41 and an emergency stop relay 50.
, are connected in series. A normally closed contact 43PT1 of the bit operation relay 43PT and a normally open contact 43 of the low speed operation relay 43D are connected between the power supply terminal P and the upward operation relay 41.
D1 and silver UP2 for ascending operation provided on the car
are connected in series. A descending operation DN2 provided on the car is connected between the connection point between the normally open contact 43Dl and the ascending operation silver UP2 and the descending operation relay 42. The other end of the descending operation relay 42 is connected to the connection point between the ascending operation relay 41 and the normally open contact 501. Further, between the connection point between the normally closed contact 43PTl and the normally open contact 43D1 and the upward operation relay 41, the normally open contact 43C1 of the low speed operation relay 43C and the upward operation silver UP1 provided in the car are connected. are connected in series. Further, a descending operation DN provided inside the car is arranged between the connection point between the normally open contact 43C1 and the ascending operation silver tJPl and the descending operation relay 42.

Between the top floor car destination floor registration relay 5HA and the power supply terminal P, there is a normally closed contact 43P of the bit operation relay 43PT.
T7, the top floor car call registration button CBA, and the normally closed contact 9H of the elevator car position detection relay (not shown)
A, and are connected in series.

Between the connection point between the top floor car call registration button CBA and the normally closed contact 9 HA 1 and the power terminal P, the normally open contact 5HA of the top floor car destination floor registration relay 5HA is connected. Similarly, a bottom floor car call registration button CB is connected between the lowest floor car destination floor registration relay 511 and the normally closed contact 43PT7.
1 and a normally closed contact 9111 of an elevator car position detection relay (not shown) are connected in series. A normally open contact 5111 is arranged between the connection point between the lowest floor car call registration button CB1 and the normally closed contact a 9111 and the power supply terminal P. A normally open contact 43G2 of a high-speed operation relay 43G is connected between the fourth terminal of the plug 16 and the connection point between the top floor car call registration button CBA and the normally closed contact 9HAI. Similarly, from the fifth terminal of the plug 16 to the connection point between the lowest floor car call registration button CB and the normally closed contact date,
A normally open contact 43G3 is arranged.

v', field down call registration relay 8HA, and power terminal P
A call registration button HDB is connected between. A normally open contact 8HA and a normally closed contact 9HA2 are connected in series between the connection point between the hall descending call registration relay 8HA and the call registration button HDB and the power supply terminal P, and a normally open contact 9H
A2 is connected in series with a normally open contact 62 of a descending direction operation command relay (not shown), and in parallel with the normally closed contact 62, a diode D and a running relay (not shown) which is energized during running are connected in series. ) is connected to the normally open contact 10. Similarly, a call registration button HUB is connected between the hall call registration relay 78B and the power supply terminal P.

A normally open contact 7HB and a normally closed contact 9HB2 are connected in series between the connection point between the hall up call registration relay 78B and the registration button HUB and the power supply terminal P.

Further, the normally open contact 98B2 and the normally closed contact 61 of the upward direction operation command relay (not shown) are connected in series, and a diode D is arranged in parallel with the normally closed contact 6].

A bit operation relay 4 is connected to the bus line of the power terminal P, which cuts off the bus line so that when the high-speed operation relay 43G is de-energized, car destination registration and hall call registration are not performed.
A normally closed contact 43PT5 of 3PT is arranged.

Now, assume that a maintenance worker is performing various maintenance work inside an elevator car. By switching the switch M to the maintenance side, the low-speed operation relay 43C is activated, and the normally open contact 4 is activated.
3C1 closes.

Therefore, when a maintenance worker presses the rising operation silver UP1, the power terminal P, the normally closed contact 43PT1, and the closed normally open contact 43C
1 is connected. Furthermore, since the emergency stop relay 50 operates and the normally open contact 50□ closes, the power terminal P...normally closed contact 43PT2...stop switch ES...safety device switch S...emergency stop relay 50... A closed circuit called power supply terminal N is configured. Therefore, by pressing the upward operation silver UPI, the upward operation relay 41 is activated, and the elevator car performs upward operation.

In addition, if the maintenance person does not press DN for descending operation, power terminal P...normally closed contact 43PT1...
... Closed normally open contact 43C1 ... D for descending operation
Nl... Descending operation relay 42... Closed normally open contact 501... A closed circuit called power terminal N is configured,
The descending operation relay 42 is activated, and the elevator car performs a descending operation.

Suppose that a maintenance worker performs various maintenance work at the top of an elevator car. By switching the switch OM to the maintenance side, the low-speed operation relay 43D is activated, and the normally open contact 43 is activated.
D1 closes.

Therefore, maintenance personnel should check the lift operation silver U at the top of the car.
When P2 is pressed, the normally open contact 501 is already closed, so the power terminal P...normally closed contact 43PT1...closed normally open contact 43D1...silver UP2 for upward operation...
- Relay for rising operation 41... Normally open contact 501... A closed circuit called power terminal N is configured. Therefore, the relay 41 for ascending operation is activated, and the elevator car performs an ascending operation.

In addition, maintenance personnel should check the DN for descending operation located at the top of the car.
When you press 2, the power terminal P...
Normally closed contact 43p'r1... Closed normally open contact 43D
1... DN for descending operation 2... Relay for descending operation 4
2... Closed normally open contact 501... A closed circuit called power supply terminal N is constructed, and the descending operation relay 42 is activated, and the elevator car performs descending operation.

By operating the stop switch ES, which can be operated either inside or on the top of the car, the emergency stop relay becomes inactive and the normally open contact 50+ returns to the open state. For this reason, both the ascending operation relay 41 and the descending operation relay 42 become inoperable.

On the other hand, when working inside the bit, a maintenance worker attaches the operating device 13 to the plug receiver 11. At this time, plug 16
The first and second terminals of the circuit are short-circuited by the blocking circuit forming means 17, and a closed circuit consisting of the power terminal P, the blocking circuit forming means 17, the bit operation relay 43PT, and the power terminal N is formed. Ru. In this way, bit operation relay 43PT
Due to the operation of normally closed contacts 43 p'r and 43PT
2 becomes open.

That is, since the normally closed contact 43p'r1 is in an open state, the copper UPl and UF4 for the upward operation and the silver DN1 and DN2 for the downward operation become inoperable. Therefore, even if each phase malfunctions, neither the ascending operation relay 41 nor the descending operation relay 42 will operate, allowing maintenance personnel to safely perform various maintenance tasks.

In addition, since the operating device 13 is attached to the plug receiver 11, the copper 1 for upward operation is connected between the third and fourth terminals of the plug 16.
3b, a downward operation silver 13c is arranged between the third and fifth terminals, and an emergency stop switch 13a is arranged between the sixth and seventh terminals.

As a result, the maintenance personnel inside the bit operate the above-mentioned phases and switches to raise, lower, and stop the elevator car.

Next, we will explain what happens when the elevator is operated at high speed inside the bit.

When the maintenance worker sets the high-speed operation selector switch 13d to the high-speed side, the power terminal P...normally open contact 43PT4...high-speed operation selector switch 13d...high-speed operation relay 43G...
- A closed circuit called the power terminal N is configured, so that even if the switch M is switched to the maintenance low speed side, the high speed operation relay 43G is energized and the elevator car is in a state where it can operate at high speed. After setting the bit to a high-speed operation state, when the copper 13b for upward operation or the silver 13c for downward operation is operated, the power terminal P...normally open contact 43P
T3...Copper 13b contact for ascending operation 43G2...Normally closed contact 9HA1...Top floor car destination relay 5HA...
A circuit called power supply terminal N, or a power supply terminal P...
Normally open contact 43 P T 3...Silver 13c for descending operation.
・Contact 43G3 ・Normally closed contact 9111 ・Bottom floor car destination floor registration relay 511 ・By one of the circuits called power terminal N, the top floor car pestle destination floor registration relay 58A or the bottom Floor car destination registration relay 511 is activated. Two of these registered relays are self-held by either normally open contacts 5HA1 and 5111, respectively, and are copper 13b for upward operation or silver 13c for downward operation.
Even if it is released, it will remain energized until it reaches the destination floor. When each car destination floor registration relay is energized, the elevator car travels toward the registered specific floor by a known circuit.

In this way, the elevator can be operated at low speed, stop, and high speed by using the operating device 13 inside the bit, and by operating the operation panel attached to the top and inside of the car externally. 1 while letting
Human maintenance personnel can perform various maintenance tasks.

Furthermore, when a maintenance person is using the operating device 1 inside the bit, even if a person other than the maintenance person accidentally switches to the high-speed operation side with the switch M on the operation panel D1 inside the car, the bit will not be activated. Normally closed contact 43 PT of operation relay 43 PT
Since the high-speed operation relay 43G is not energized by step a, the elevator car is not operated at high speed.

In addition, even if the bit is switched to high-speed operation and the elevator is operated at high speed, the pit operation relay 4
Since the normally closed contact 43PT7 of the 3PT prevents registration of the car destination floor registration button on the operation panel D1 inside the car, high-speed operation is not performed by anyone other than maintenance personnel.

In this way, as shown in several places in this embodiment, a maintenance worker can safely perform various maintenance work by himself/herself.

<Effects of the Invention> As explained in detail above, the present invention includes a high-speed operation selector switch that enables high-speed operation in the operating device, a blocking circuit forming means for preventing elevator operation by anyone other than maintenance personnel, and a specific Since a floor car call registration circuit formation means has been installed, inspection work can be carried out at low speed even from inside the bit, and it is also possible to carry out various tasks such as measuring the amount of main rope elongation and checking the running condition of moving cables during high-speed operation. Maintenance work on equipment in the hoistway can now be carried out safely by a single maintenance worker. This saves labor, eliminates the need for communication between maintenance personnel during the two major operations, and eliminates similar safety problems.

[Brief explanation of the drawing]

FIG. 1 is a circuit diagram showing the configuration of an embodiment of the elevator maintenance and operation device of the present invention, FIG. 2 is a perspective view showing the configuration of an operating device used in the embodiment of the present invention, and FIG. FIG. 2 is a wiring diagram of the plug terminal portion of the operating device, and FIG. 4 is a longitudinal sectional view showing the configuration of an embodiment of the present invention. 1-a...Pa hoistway, 2a...Machine room, 3a...Car, 4a...Driver, 6a...Control Device, 7a... Hoistway bottom, 11... Plug receiver, 12...
Transmission line, 13... Operating device, Dl, D2...
...Operation panel, 13a...Emergency stop switch, 13d...High speed operation selector switch, 16.
... Plug, 17 ... Blocking circuit forming means, one ... Registering circuit forming means, 41 ...
・Relay for ascending operation, 42...Relay for descending operation, 43c...Relay for low-speed operation in the car, 43
D...Relay for low speed operation on car, 43G...
... Relay for high-speed operation, 43PT ... Relay for bit operation, 50 ... Relay for emergency stop, 5
HA・・・Top floor car destination floor registration relay, 511
・Old: Bottom floor car destination floor registration relay. Figure 1 Figure 2 Figure 3

Claims (1)

[Claims] (1) A car that is controlled to move up and down in the hoistway by a control device installed in a machine room, and an operation panel that is installed inside and above the car to operate the car up and down; An elevator maintenance and operation device comprising a transmission line having one end connected to the control device and the other end led to the bottom of the hoistway, and a portable operator detachably attached to the other end of the transmission line, The operating device includes a high-speed operation selector switch for switching to a high-speed operation mode, and blocking circuit forming means that blocks operation of the operation panel and hall call registration when the operating device is connected to the other end of the transmission line; A maintenance operation device for an elevator, comprising: registration circuit forming means for operating a registration circuit that allows car call registration for a specific floor when the operating device is connected.