JPH0229588B2 - EREBEETANOHYOJISOCHI - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention provides television cameras (hereinafter abbreviated as TV cameras) on the top and bottom of the outside of an elevator car, and a display screen inside the car that receives external information using a TV camera. The present invention relates to an elevator display device equipped with an elevator display device.

[Prior art]

If an earthquake occurs while an elevator is running, the elevator is immediately stopped at the nearest floor to avoid colliding with protrusions in the hoistway caused by the earthquake. When the earthquake subsides, a skilled staff member gets into the car and runs the car back and forth between the two terminal floors at low speed to ensure safety before returning to normal high-speed operation.

However, when performing this safety check operation, if a protrusion occurs in the hoistway, it is very dangerous for the staff as it may lead to a collision.

Additionally, if an earthquake occurs while the elevator is running in the express section, the elevator will stop immediately and after a few minutes will run at low speed in the direction away from the weight, but in this case, passengers in the car will be at the same risk as above. exposed to

[Summary of the invention]

The present invention was made in view of the above circumstances, and
TV cameras are installed on the top and bottom of the outside of the elevator car, and a display device is installed inside the car so that the inside of the elevator hoistway can be checked using the TV cameras during safety check operations after an earthquake occurs. This invention provides an elevator display device.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the accompanying drawings.

In Figures 1 and 2, 1 is an on-car TV camera installed above the outside of the elevator car and shows the inside of the hoistway above the car, and 2 is installed below the outside of the car and shows the inside of the hoistway below the car. TV under the basket
Camera, 3 is tenant guidance in case of non-emergency,
An image transmitter for sending event information, weather forecasts, etc. to the TV receiver in the car, 4 is a TV installed in the car.
Receiver, 5 is the UP button provided in the car, 6
is the UP button relay, 6a is this relay, 6 is a normally open contact, 6b is a normally closed contact, 7 is installed inside the car.
DOWN travel button, 8 is the DOWN button relay, 8a is the normally open contact of this relay 8, 8b is the normally closed contact, 9a,
9b is an earthquake relay contact that closes when an earthquake is detected, 9c is a contact that also opens, 10a, 10b
11 is the UP direction command relay contact, which closes when stopping the express section in the event of an earthquake and then running at low speed.
12 is the car image display relay, 12 of this relay
a, 12b are normally open contacts, 12c is a normally closed contact, 16
is a DOWN direction command relay contact, 14 is a car bottom image display relay, 14a and 14b of this relay are normally open contacts, 14c is a normally closed contact, 15 is a car top light provided above the car, and 16 is a car bottom light. 17 is an emergency stop button provided in the car, and 18 is a non-stop relay that immediately stops the car when energized.

In the above configuration, the in-car TV receiver 4 normally displays information such as tenants, entertainment information, weather forecasts, etc. However, if an earthquake occurs and the earthquake sensor is activated, the earthquake relay contact 9c is opened, the signal from the image transmitter 3 is cut off, and the normal display on the in-car TV receiver 4 disappears. Further, a circuit (not shown) causes the car to stop at the nearest floor.

Next, when the earthquake has subsided, the staff member gets into the car and operates the low-speed operation switch, and by holding down the UP travel button 5 or the DOWN travel button 7, performs a safety check operation to the terminal floor.

At this time, for example, if the UP travel button 5 is pressed, the UP button relay 6 is energized, and its contact 6a is closed.
The car image display relay 12 is energized and its contact 1
2b is closed and the car top light 15 is turned on.

In addition, the normally open contact 1 of the on-car image display relay 12
2a is closed, the inside of the hoistway above the car is projected by the on-car TV camera 1, and the in-car TV receiver 4
You can check the status.

Also, if you press the DOWN running button 7,
The DOWN button relay 8 is energized, and its contact 8a is closed to energize the under-car image display relay 14, and its contact 14b is closed to turn on the under-car lighting 16. Furthermore, the normally open contact 14a of the under-car image display relay 14 closes, and the under-car TV camera 2 images the inside of the hoistway above the car.
The situation inside the hoistway can be confirmed using the TV receiver 4 in the same manner as described above.

Next, if the car is to be stopped within the express section and then run at low speed in a direction away from the weight, the earthquake low speed travel command relay contacts 10a, 1
0b is closed, and if the direction in which the car separates from the weight is upward, the UP direction command relay contact 11 is closed, so the (+) line shown in the diagram → earthquake relay contact 9a
→ Earthquake low-speed travel command relay contact 10a → DOWN
Normally closed contact 8b of button relay 8 → UP direction command relay contact 11 → normally closed contact 14c of lower car image display relay 14 → upper car image display relay 12 → upper car image display relay 12 via the (-) line path. When activated, the status on the car is displayed inside the car as described above.
If a passenger in the car feels in danger, he or she presses the emergency stop button 17, which activates the emergency stop relay 18 and immediately stops the car.

On the other hand, if the direction in which the car is moving away from the weight is downward, the DOWN direction command relay contact 13 is closed, so the (+) line shown → earthquake relay contact 9a →
Earthquake low speed running command relay contact 10b → UP button relay 6 normally closed contact 6b → DOWN direction command relay contact 13 → upper car image display relay 12 normally closed contact 12c → lower car image display relay 14 → (-) wire The under-car image display relay 14 is energized through the route and displays the situation under the car inside the car as described above.

Furthermore, even if the direction of the car is UP, if a passenger feels danger and presses the DOWN button 7, the direction of the car is switched to DOWN by a circuit not shown.
At this time, the DOWN button relay 8 is energized and its contact 8b is opened to stop the car top display, and at the same time, the normally open contact 8a is closed to switch to the car bottom display.

In the above embodiment, a TV receiver for checking the situation in the hoistway is provided only in the car, but it may of course be provided in a landing, a monitoring room, etc.

In addition, in the above embodiment, general information is broadcast in times other than emergencies, but of course only in emergencies
A receiver may also be used.

Furthermore, not only in the event of an earthquake, the situation on the top of the car may be displayed when the car is in upward operation, and the situation below the car may be displayed in case of downward operation.

〔Effect of the invention〕

As described above, the present invention includes TV cameras that display the inside of the hoistway installed above and below the outside of the car, and a TV that is electrically connected to the TV cameras inside the car.
Since the image receiver is provided, the situation inside the hoistway can be easily grasped, and unexpected accidents can be prevented.

[Brief explanation of drawings]

1 and 2 are sequence circuit diagrams of an elevator display device showing one embodiment of the present invention. 1... TV camera above the car, 2... TV camera below the car, 3... image transmitter, 4... TV receiver inside the car.

Claims (1)

[Claims] 1. Television cameras are installed above and below the outside of the elevator car to show the inside of the hoistway of this car, and a television receiver electrically connected to these television cameras is installed inside the car. Characteristic elevator display device.