JPS6126304Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for causing adjacent elevator cars to come to the rescue when an elevator car breaks down.

In high-speed elevators installed in modern high-rise buildings, sections without landings (hereinafter referred to as express zones) are sometimes provided in the middle floors in order to improve elevator operation efficiency. If an elevator car is running in such an express zone and stops due to a malfunction and a passenger is trapped inside the malfunctioning car, there is no way to rescue the passenger from the landing, so move the adjacent rescue car to the side of the malfunctioning car. Passengers are rescued by stopping the car in one direction, opening the rescue doors on the side walls of both cars, and passing a ramp.

For this reason, a rescue operation device such as that disclosed in Japanese Patent Publication No. 15506/1983 has been proposed. In other words, this rescue operation device has at least two light emitters or light receivers installed above and below the elevator car, and the first light emitter of the rescue car operated by the elevator manager is the first light emitter of the failed car. When the second light receiver of the rescue car faces the first light receiver, the rescue car is automatically decelerated, and when the second light emitter of the rescue car faces the second light receiver of the failed car, the rescue car is stopped to the side of the failed car. be.

However, with this type of rescue operation device, the operating speed of the rescue car is limited to approximately 80 m/min with a deceleration distance equivalent to the length of the elevator car, so if this device is used in elevators with long express zones, The rescue basket takes too long to reach the faulty basket. Further, it has the disadvantage that at least two or more light projectors or light receivers are required in the elevator car, and installation requires time and effort such as centering.

The present invention was developed in view of the above points, and aims to provide a device that can rescue passengers in a short time using a simple device.

The present invention is an elevator rescue operation device characterized in that the rescue car is driven at high speed toward the failed car, passes once past the failed car, and then returned at low speed and stopped at the side of the failed car.

FIG. 1 shows the configuration of an elevator speed control device showing an embodiment of the present invention, in which 1 is a management device that manages the operation of the elevator, 2 is a speed command device that commands the operating speed signal V ₂ of the elevator car, and 3 is a speed pattern generator that outputs an ideal elevator speed pattern signal _V3 , and 4 is a speed pattern signal
an amplifier that compares V ₃ with a speed signal proportional to the actual speed of the elevator car, for example a speed signal V ₅ of the speed generator 5, and generates an output corresponding to the difference;
6 is a power amplifier device such as a thyristor device that controls the voltage applied to the motor 7 according to the output of the amplifier 4;
Reference numeral 8 indicates a mesh wheel, 9 a counterweight, 10 an elevator car, 11 a light projecting device provided in the failure car 10a, and 12 a light receiving device provided in the rescue car 10b. Note that 12a is a contact point that closes when the rescue car faces the failed car and the light receiving device 12 receives light from the light projecting device 11.

FIG. 2 shows an embodiment of the management device 1, and FIG. 3 shows an embodiment of the speed command device 2. In the figure, E+ and E- are the power bus lines of the relays in the management device 1, S is the rescue operation switch provided inside the rescue cage, P _u is the upward operation button provided inside the rescue cage, and P _D is the rescue cage. A lowering operation button provided inside, 21 to 27 are relays, 21a, 22a, 22b, 22c, 23a,
23b, 23c, 24a, 24c, 25a, 25
b, 25c, 26a, 26b, 27a, 27b are normally open contacts of relays with the same numbers,
24b, 27c, and 27d are normally closed contacts of relays with the same numbers, 28 is an operation delay relay, 28a and 28b are normally closed contacts of the operation delay relay 28, OP is an operational amplifier, and R ₁ to _{R 3} are resistors. ,P,N
indicates positive and negative power supplies for the operational amplifier OP in the speed command device 2. Further, FIG. 4 shows the output signal waveforms of the speed command device 2 and the speed pattern generator 3 during rescue operation.

The operation of the device of the present invention will be explained below with reference to FIGS. 1 to 4.

When an elevator car stops in an express zone due to a failure of a control device or the like, the elevator caretaker gets into the elevator car adjacent to the failed car and turns on the rescue operation switch S shown in FIG.
By turning on the rescue operation switch S, the rescue operation relay 21 is energized. Next, the manager confirms the position of the broken car and decides the direction of rescue operation, and presses the operation button P ₀ for upward operation and the operation button P _D for downward operation. For convenience of explanation, the case where the operation button P _U is pressed will be explained below. The operation relay 22 is energized by operating the operation button P _U and is self-held by the contact 22 a of the operation relay 22 . This driving relay 2
2, "P-22c-2" is shown in FIG.
A closed circuit of 7c- _R1 - _R3-0V is formed, and the speed command device 2 outputs a step-like rescue operation speed signal determined by the partial pressure ratio of resistors _R1 and _R3 as shown in Fig. 4.
Generates V ₂ a. Next, a well-known speed pattern generating device 3 comprising an integrating circuit or the like transforms the rescue driving speed signal V ₂ a into a trapezoidal speed pattern signal V ₃ as shown by the broken line in FIG. 4. The speed of the rescue car 10b is controlled by the speed control device shown in FIG. 1 so as to follow the trapezoidal waveform speed pattern signal _V3 , and the rescue car 10b heads in the direction of the failed car 10a. Next, when the rescue car 10b reaches the point A where it first faces the failed car 10a, the light receiving device 12 receives the light beam from the light projecting device 11, so that the contact 12a is closed. When this contact 12a is closed, the closed circuit "E+-21a-22b-1" is shown in FIG.
2a-24-E-'' occurs, energizing the position detection relay 24 and closing the contact 24a. This contact 24a
The deceleration command relay 25 is energized by the closing of the circuit, and is self-held by the contact 25a. By energizing the deceleration command relay 25, a new circuit "P-22c-27c-R ₁ R ₂ -27d-25c-
N” is produced. Here, resistor R ₂ in advance
If it is set to a value smaller than R ₁ , the speed command device 2 will generate a negative rescue operation speed signal V smaller than the signal level of the rescue operation speed signal V ₂ a at the position A as shown by the solid line in FIG. Change to ₂ b. Receiving this rescue operation speed signal V ₂ b as input, the speed pattern generator 3 outputs a negative trapezoidal waveform signal shown by the broken line in FIG. The rescue car 10b has a speed pattern signal V ₃
Therefore, when it first reaches the position facing the failed car 10a, it starts to decelerate and passes the failed car once, but after a predetermined period of time, the car slows down at a low speed. I'm heading back towards you. Next, when the rescue car 10b returns to the position facing the faulty car 10a, the light receiving device 12 captures the light from the light projecting device 11 again and contacts 1.
2a closes again. Once the rescue car passes the failed car, the relay 26 is energized and self-held, so when the position detection relay 24 is energized again by closing the contact 12a, the stop relay 27 is energized. When the stop relay 27 is energized, the contacts 27c and 27d open in FIG. 3, so the rescue operation speed signal _V2 becomes zero as shown in FIG. 4, and the speed pattern signal _V3 also becomes zero. When a predetermined period of time elapses after the stop relay 27 is energized, the operation release relay 28 is energized and the operation relay 22 is activated.
is deactivated. Therefore, the rescue car can accurately stop at a position opposite to the failed car, and the passengers can be rescued.

In the above explanation, an example was described in which a light emitting device and a light receiving device using light were used as a device for detecting the position of a faulty car. However, the present invention is not limited to the examples. Further, in the above explanation, only the rescue operation in the ascending direction has been described, but it is clear that the rescue operation in the descending direction is performed in exactly the same manner as in the case of the ascending operation.

As can be seen from the above explanation, according to the present invention,
Even if the elevator car stops while traveling in the express zone and passengers are trapped inside the elevator car,
By adding a simple device, adjacent cars can be driven at high speed to rescue passengers, allowing passengers to be rescued in a short time. Further, according to the present invention, it is sufficient to provide one set of position detection devices for each elevator, and there is almost no effort required for centering during installation.

[Brief explanation of the drawing]

1 is a diagram showing an embodiment of the elevator speed control device according to the present invention, FIG. 2 is a circuit diagram showing an embodiment of the control device in FIG. 1, and FIG. 3 is a diagram showing an embodiment of the control device in FIG. 1. A circuit diagram showing an example,
FIG. 4 is a diagram showing the driving speed command signal and speed pattern signal waveform during rescue operation. 1... Management device, 2... Speed command device, 3...
Speed pattern generator, S... switch, P _U ,
P _D ...Operation button, 21-27...Relay, 28...
...Operation delay relay, 10...Elevator car, 1
1... Light projecting device, 12... Light receiving device.

Claims (1)

[Claims for Utility Model Registration] A speed pattern generation device that generates an ideal speed pattern signal of an elevator and a speed detection device that outputs a speed signal proportional to the actual speed of the elevator car are provided, and the speed pattern signal In the case where at least two or more elevator cars are arranged adjacent to each other for speed control by comparing the speed signal and the speed signal, the relative positions of the adjacent elevator cars are set at mutually opposing positions. At least one set of position detection devices for detecting the speed is provided, and each elevator car is provided with operating means for performing a rescue operation, and when the operating means is operated, a rescue operation speed signal is transmitted to the speed pattern generator. a speed command device that is input to a speed command device; and a first signal is output when the adjacent elevator cars first reach a position where they face each other based on an output signal of the position detection device, and then a position where the elevator cars face each other again. and a management device that outputs a second signal when the rescue operation speed signal is reached, and the speed command device changes the polarity of the rescue operation speed signal and reduces the signal level based on the first signal of the management device. An elevator rescue operation device featuring: