JP2002154755A - Automatic landing device for elevator in case of blackout - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an automatic landing device for an elevator in of blackout, with which the accurate operation confirming test can be performed by even the only one maintenance worker. SOLUTION: This automatic landing device for an elevator is provided with a sound sensor 12 for detecting the ringing sound of an inter-phone 5 provided in a machinery room 2, and a test button driving device 11 for operating a test button 6 with a detection of the ringing sound by the sound sensor 12. The test button 6 is operated by operating a call button 10A of a car-inside inter-phone 10 provided in a car 9 to generate the ringing sound. When a maintenance worker getting on the car 9 operates the call button 10A, the maintenance worker can confirm a series of the automatic landing operation in case of blackout such as a landing stop of the car and open of car doors before the maintenance worker.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic landing apparatus at the time of power failure of an elevator, and more particularly, to an automatic landing apparatus at the time of power failure which can confirm the operation by pressing a test button in a machine room during inspection.

[0002]

2. Description of the Related Art Elevator power failure automatic landing equipment causes serious accidents such as passengers unable to escape if there is a malfunction in the event of an actual power failure. You have to make sure you do. Therefore, the elevator machine room is usually provided with a test button that can output a test signal when pressed to check the operation of the automatic landing device at the time of a power failure, and maintenance personnel can press this test button to perform inspection work. It is carried out.

[0003] In the inspection work of the automatic landing device at the time of power failure, it is confirmed in the machine room whether the car has stopped on the nearest floor and the car door has been opened, and whether the lighting inside the car has been turned off. Conventionally, if there is only one maintenance person performing inspection work, the maintenance person presses the test button in the machine room and then hurries up to the car to check the automatic landing operation at the time of power failure. I needed to run. On the other hand, if there are two maintenance personnel performing the inspection work, one of them can get into the car and the other can push the test button in the machine room. To accurately check the automatic landing operation during a power outage, such as stopping the landing of the car, opening the car door, turning off the lighting inside the car, and turning on the automatic landing operation indicator at power failure Can be.

[0004]

As described above, in the conventional automatic landing apparatus at the time of a power failure, it is not easy for a maintenance person to perform an inspection work (operation confirmation test) by himself, and particularly from a machine room to a car. At a site where the distance is long, accurate operation confirmation tests could not be performed without multiple maintenance personnel. However, the inspection work requiring a plurality of maintenance personnel has a problem that the labor cost is increased and the inspection cost is increased, and it is not easy to secure the maintenance personnel.

SUMMARY OF THE INVENTION The present invention has been made in view of such a situation of the prior art, and an object thereof is to provide an automatic landing apparatus for an elevator during a power failure in which only one maintenance person can perform an accurate operation check test. is there.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present invention is to switch a car stopped on an intermediate floor at the time of a power failure to battery power and land on a nearest floor. In an automatic landing device at the time of a power failure of an elevator, which can output a test signal and operate when a test button provided in a room is operated, a sound sensor for detecting a sound of an intercom installed in the machine room, Test button driving means for operating the test button in conjunction with the sound sensor detecting the ringing sound, and operating the intercom call button installed in the car to generate the ringing sound And the test button is operated.

[0007] If the test button is operated via the sound sensor when the intercom in the machine room rings, one maintenance person who gets into the car operates the call button of the interphone in the car. By ringing the intercom in the machine room, it is possible to check a series of automatic landing operations at the time of a power failure such as stopping the landing of the car, opening the car door, and turning off the lighting inside the car, so that automatic Inspection of floor equipment can be performed easily and accurately.

If the test button driving means has a rod mechanism for pushing the test button for a certain period of time, the operation of the automatic landing device at the time of a power failure is always stopped after a certain period of time, and the normal operation state is restored. Therefore, it is preferable that the normal operation of the elevator can be promptly restarted after the inspection is completed.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic configuration diagram of an entire elevator according to an embodiment, and FIG. 2 is a test button driving device shown in FIG. FIG. 3 is a side view of the intercom in the machine room shown in FIG.

As shown in FIG. 1, the elevator 1 has a hoistway 3 which is a space in which a car 9 moves up and down, an elevator 7 on which a main rope 8 is wound, and an elevator for controlling the operation of the car 9. A machine room 2 in which a control panel 13 and the like are installed is provided, and a car 9 is suspended in the hoistway 3 via a main rope 8 driven by a hoist 7 so as to be able to go up and down. In the machine room 2, in addition to the above, an interphone 5 for communicating with the inside of the car 9 and a power outage for switching the car 9 stopped on the intermediate floor at the time of the power outage to battery power and landing on the nearest floor. An automatic landing device is installed. This automatic landing device at the time of a power failure includes a dedicated control panel 4 having a test button 6, a sound sensor 12 for detecting the sound of the interphone 5, and the test button 6 in conjunction with the sound sensor 12 detecting the sound of the sound. And a test button driving device 11 for operating the operation. On the other hand, an in-car intercom 10 is installed in the car 9, and when the call button 10 </ b> A of the in-car intercom 10 is pressed, the interphone 5 in the machine room 2 sounds.

The automatic landing device at the time of power failure in the machine room 2 will be described in detail. As shown in FIG. 2, the test button driving device 11 is provided with a rod 11A movable in the direction of arrow P. The tip is opposed to the test button 6. When the sound sensor 12 detects the ringing sound of the intercom 5, the detection signal is input to the test button driving device 11 through the code 12A, and the test button driving device 11
A drive motor (not shown) built in the rod 11A
In the direction of arrow P. When the rod 11A moves in the direction of the arrow P in this manner, the tip of the rod 11A pushes the test button 6 to operate it, so that a test signal is output and a series of automatic landing operations at the time of power failure are executed. However, the drive motor is rod 1
A driving force is applied to 1A for a fixed time, and the rod 11A from which the driving force has been removed is returned to the original position by a return spring (not shown). The test button driving device 11
Is fixed to the surface of the control panel 4 for the automatic landing device at the time of power failure by using the magnetic attraction force of a permanent magnet, etc.
It is easy to mount the test button driving device 11 in a state where the tip of the rod 11A is opposed to the test button 6 by a predetermined distance.

When performing an inspection work for checking whether the automatic landing apparatus at the time of power failure of the elevator 1 operates normally, first, one maintenance person enters the machine room 2 and the rod 1
The test button driving device 11 is mounted on the control panel 4 for the automatic landing device at the time of a power failure based on the relative position between the test button 1A and the test button 6, and the sound sensor 12 is mounted at a position where the sound of the interphone 5 can be easily detected. Then, the cord 12A is connected to the test button driving device 11. Thereafter, the maintenance person leaves the machine room 2 and enters the car 9 and presses the call button 10A of the intercom 10 in the car. Car 9 in this way
When the call button 10A in the inside is pressed, the interphone 5 in the machine room 2 sounds and a detection signal is output from the sound sensor 12, so that the rod 11A of the test button driving device 11 moves in the arrow P direction. The test button 6 is operated to start a series of automatic landing operations at the time of power failure. Therefore, car 9
The maintenance staff in the car stopped landing the car 9 and opened the car door.
The operating state, such as turning off the lighting in the car and turning on the automatic landing operation indicator at the time of a power failure, can be accurately confirmed in front of the eyes.

As described above, in this embodiment, the operation confirmation test can be efficiently and accurately performed by only one maintenance person at the time of inspection work of the automatic landing device at the time of power failure.
Even if the distance from the machine room 2 to the car 9 is long, there is no need to dispatch a plurality of maintenance personnel for inspection work. In the present embodiment, when the rod 11A of the test button driving device 11 pushes the test button 6 for a certain period of time, the test button 6 automatically returns to the original position, so that the call button 10A of the intercom 10 in the car is pressed. After a certain period of time, the operation of the automatic landing device at the time of a power failure is always stopped to restore the normal operation state. Therefore, the normal operation of the elevator 1 can be promptly resumed after the inspection is completed, so that the maintenance staff can easily move and the inspection work time can be shortened.

[0014]

The present invention is embodied in the form described above and has the following effects.

[0015] Since the test button is activated via a sound sensor when the intercom in the machine room sounds, an automatic landing device at the time of a power failure, so that one maintenance person who got into the car operates the call button of the interphone in the car. By sounding the intercom in the machine room, a series of automatic landing operations at the time of a power failure such as stopping the landing of the car and opening the car door can be confirmed in front of the eyes. As described above, since the inspection work of the automatic landing device at the time of a power failure can be performed easily and accurately by only one maintenance person, the inspection cost can be reduced and personnel can be easily secured.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of an entire elevator according to an embodiment.

FIG. 2 is an operation explanatory diagram of the test button driving device shown in FIG. 1;

FIG. 3 is a side view of the mechanical room intercom shown in FIG. 1;

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 elevator 2 machine room 3 hoistway 4 control panel for automatic landing device at power failure 5 intercom for machine room 6 test button 7 hoisting machine 8 main rope 9 car 10 intercom in car 10A call button 11 test button drive 11A Rod 12 Sound sensor 13 Elevator control panel

Claims (2)

[Claims] 1. A system for switching a car stopped on an intermediate floor during a power outage to a battery power source and landing on the nearest floor, and outputs a test signal when a test button provided in a machine room is operated. In the automatic landing device at the time of a power failure of an elevator capable of confirming operation, a sound sensor for detecting a sound of an intercom installed in the machine room, and the test button is operated in conjunction with the sound sensor detecting the sound of the sound. Test button driving means for operating, and the test button is operated when the ringing sound is generated by operating the call button of the intercom in the car installed in the car. Automatic landing equipment for elevator power failure. 2. The automatic landing apparatus for an elevator power outage according to claim 1, wherein said test button driving means has a rod mechanism for pushing said test button for a predetermined time.