JPH05105343A - Elevator car position notification device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide an elevator car position notification device capable of notifying an accurate intermediate position when performing a load test, and alleviating tension and fatigue of a tester. [Structure] A car 1 and a counterweight 2 are connected to a rope 3 and are raised and lowered by an electric motor 4. Pulse generator 9
Outputs to the microcomputer 10 a number of pulses proportional to the rotation of the electric motor 4. The microcomputer 10 stores the number of pulses P2 at the intermediate position where the car 1 and the counterweight 2 pass each other and the number of pulses P4 before and after the intermediate position, and activates the ringer 17 when the number of input pulses reaches the respective number of pulses. The test data of the load test is measured by the second ringing.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator car position informing device for informing a tester of a test data collection position when performing an elevator load test.

[0002]

2. Description of the Related Art Elevators are generally manufactured by JISA when completed.
It is mandatory to carry out load tests according to 4302. The load test is to measure and record each value of the electric current, voltage, car speed, etc. of the electric motor while actually carrying out the ascending operation and descending operation of the car by placing a predetermined weight load in the car of the elevator. Is. The position where each of these values is measured is the position (intermediate position) when the car and the counterweight pass each other, and the balance point is detected by the measured value.

As a method of detecting when the car reaches the above intermediate position, an inspector visually checks the floor indicating lamp installed on the control panel of the elevator machine room, and the floor indicating lamp corresponding to the intermediate position is detected. When the light is turned on, the inspector gives a signal to the measurer who is the examiner.

[0004]

However, the floor indicator lamp does not always indicate the intermediate position, that is, the measurement position, and the lighting position of the floor indicator lamp and the car movement when the building is on an even number of floors, etc. In many cases, it does not completely coincide with the actual intermediate position of, and in this case, an accurate load test cannot be performed. Especially, in an elevator in which a balance rope or a balance chain is not used, if the detection of the intermediate position is inaccurate, the measured value is significantly adversely affected. In addition, the measurer who carries out the load test starts the measurement after waiting for the signal of the inspector who looks at the floor display lamp, so he does not know when he will receive the signal and there is a problem that he is nervous and tired during the test. there were.

An object of the present invention is to solve the above-mentioned problems of the prior art, to notify an accurate intermediate position when performing a load test, and to alleviate tension and fatigue of a tester. It is to provide a position notification device.

[0006]

In an elevator in which a car and a counterweight are coupled to both ends of a rope wound around an electric motor, and the car and the counterweight are moved up and down by driving the electric motor, the position of the car and the counterbalance. First detecting means for detecting that an intermediate position where the position of the weight coincides is detected, and second detecting means for detecting that the movement of the car reaches a predetermined position below the intermediate position, The first detection means and the second detection means are provided in a machine room.
And a ringer that rings according to each detection signal of the detection means.

[0007]

When performing the load test, when the second detection means detects that the car has reached the predetermined position below the intermediate position during the elevator car ascending operation, the ringer makes the first ringing sound. Emit. Subsequently, when the first detecting means detects that the car has reached the intermediate position, the ringer makes a second ringing sound. Further, when the second detecting means detects that the car reaches a predetermined position above the intermediate position during the descent operation of the car of the elevator, the ringer makes a first ringing sound. Subsequently, when the first detecting means detects that the car has reached the intermediate position, the ringer makes a second ringing sound. Thus, the tester can prepare to start the test with the first ringing sound both during the ascending operation and the descending operation of the car, and can calmly start the test accurately with the second ringing sound.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to illustrated embodiments. FIG. 1 is a schematic explanatory view illustrating an elevator including a car position notification device according to an embodiment of the present invention. In the figure, 1 is an elevator car, 2 is a counterweight connected to the car 1 by a rope 3, and 4 is an electric motor for moving the car 1 and the counterweight 2 via the rope 3. 5 baskets 1
And the hoistway of the counterweight 2, 6 is the bottom floor, 7 is the middle floor, and 8 is the top floor. Reference numeral 9 is a pulse generator that outputs a number of pulses proportional to the number of revolutions of the electric motor 4, and reference numeral 10 is a microcomputer that takes in the pulse signal output from the pulse generator 9 and performs various controls accompanying the start of the load test. .. The microcomputer 10 stores an interface 11 that takes in a pulse signal from the pulse generator 9, a CPU 12 that performs necessary calculations and control based on the pulse signal received from the interface 11, a ROM 13 that stores a program, and various data. It is composed of a RAM 14 and an interface 15 that outputs a result calculated by the CPU 12. 16 is interface 1
An open / close switch that opens and closes based on the output signal from 5.
Reference numeral 7 denotes a ringer that rings when the open / close switch 16 is operated.

The CPU 12 has a function of determining an intermediate position, that is, a measurement start position. This is because the number of pulses P1 generated from the pulse generator 9 when the car 1 is operated between the lowermost floor 6 and the uppermost floor 8 is grasped and the number of pulses P1 × 1
The pulse number P2 obtained by / 2 is obtained, and this pulse number P2 is recognized as an intermediate position, that is, a position for notifying the start of measurement, and is stored in the RAM 14. Also, the CPU 12
It has a function of deciding the position to notify the preparation for measurement. This is because the number of pulses P3 generated when the car 1 moves, for example, 2 m is grasped to obtain the number of pulses P4 obtained from the number of pulses P2-P3, and the number of pulses P4 is moved downward from the intermediate position determined previously. It is recognized as a position for notifying the preparation for the measurement that has fallen by a predetermined distance (2 m), and is stored in the RAM 14. Similarly, the number of pulses P4 obtained from the number of pulses P2-P3 is recognized as a position for notifying the preparation for measurement that has been raised by a predetermined distance (2 m) from the previously determined intermediate position, and is stored in the RAM 14. ..

FIG. 2 is a block diagram illustrating another main functional configuration of the CPU 12. In the figure, the same parts as those shown in FIG. Reference numeral 21 is a counter for counting the pulses output by the pulse generator 9. Reference numeral 22 is a first detecting means for detecting the time when the count value of the counter 21 reaches the pulse number P2 as a measurement start position and generating an output, and 23 is the count value of the counter 21 reaching the pulse number P4. The second detecting means 24 detects the time as a measurement preparation position which is lower than the measurement position by a predetermined distance and generates an output, and 24 is an upper position from the measurement position when the count value of the counter 21 reaches the pulse number P4. It is a third detecting means for detecting as a preparation position for measurement that has been raised by a predetermined distance and generating an output. Reference numeral 25 is a driving direction determination means configured by appropriate means for determining the driving direction of the car 1, and when the rising operation of the car 1 is determined, only the outputs from the first and second detection means 22 and 23 ring. Device 17, that is, the open / close switch 16 for ringing the ringer 17,
When the descending operation of the car 1 is determined, only the outputs from the first and third output means 22 and 24 are ringer 17, that is, ringer 17.
Is transferred to the open / close switch 16 for ringing. In other words, the driving direction determination means 25 has a function of invalidating one of the outputs from the second and third detection means 23, 25 in consideration of the driving direction of the car 1. Therefore, the output from the first detection means 22 is previously output from the ringer 1.
7, i.e., it can be directly transferred to the open / close switch 16 for ringing the ringer 17.

FIG. 3 is a flow chart for explaining the operation of this embodiment. In order to perform a load test with the car 1 stopped at the bottom floor 6 or the top floor 8,
When a maintenance switch (not shown) is turned on (S-31), the car 1 starts to move by driving the electric motor 4, and the counter 21
Starts counting the pulse signals output from the pulse generator 9 (S-32). At this time, the driving direction determination means 25
It is determined whether or not the car 1 is in the ascending operation (S-3
3). Here, when it is determined that the car 1 is in the ascending operation, it is determined whether the count value of the counter 21 reaches the above P4 and the second detecting means 23 is activated (S-
34). When the second detecting means 23 is not operating, the determination of the presence or absence of the operation is sequentially repeated, but when the second detecting means 23 is operated, the ringer 17 generates the first ringing sound. (S-35). Next, the count value is P
Then, it is determined whether the first detection means 22 has reached 2 and the first detection means 22 has been activated (S-38). When the first detection means 22 is not operating, the determination as to whether or not the operation is performed is sequentially repeated.
When the detection means 22 of 1 operates, the second sounding sound is generated from the sounding device 17 (S-39), and the operation ends.
On the other hand, when it is determined that the car 1 is in the descending operation,
It is determined whether or not the count value has reached P4 and the third detecting means 24 has been activated (S-36). When the third detecting means 24 is not operating, the determination of the presence or absence of the operation is sequentially repeated, but when the third detecting means 24 is operated, the ringer 17 generates the first ringing sound. (S-3
7). After this, it is determined whether the count value reaches P2 and the first detecting means 22 is activated (S-38).
When the first detection means 22 is not operating, the determination of the presence or absence of the operation is sequentially repeated, but when the first detection means 22 is operated, the second sounding sound is generated from the ringer 17. (S-39), the operation ends.

In this embodiment, the microcomputer 10
Is provided with a function for obtaining an intermediate position, first, second and third detecting means 22, 23, 24, and a driving direction determining means 25,
Since the sounding device 17 is configured to ring at the position before the measurement position and at the measurement position after determining the driving direction of the car 1, the measurer who performs the measurement is the first ringing, and soon the car It is possible to prepare for the measurement by knowing that 1 is approaching the intermediate position, and it is possible to immediately measure necessary data such as current, voltage, speed, etc. by the second ringing. As a result, it is possible to easily and surely acquire data at an accurate position. In addition, since the measurement position is notified by sounding twice as described above, it is possible to relieve the tension and fatigue of the tester, and further signal when the car 1 passes through the intermediate position as in the conventional case. No inspector is required, and the work cost can be reduced.

In the description of the above embodiment, an example in which the driving direction judging means is provided to make the ringer sound only twice has been described, but the driving direction judging means is not always necessary.
Obviously, it should be measured by the first ring.

[0014]

According to the present invention, the first detecting means for detecting the intermediate position, the second detecting means for detecting the positions above and below the intermediate position, and the ringer are provided to carry out the load test. When the car is operated to move up and down, the sound generator is configured to ring at the position before the measurement position and at the measurement position respectively, so that the position before the intermediate position and the accurate intermediate position can be reported, and the load Unnecessary strain and fatigue of the tester who conducts the test can be relieved. Further, an inspector for signaling when the car passes through the intermediate position of the hoistway is not necessary, and the work cost can be reduced.

[Brief description of drawings]

FIG. 1 is a schematic explanatory diagram illustrating an elevator including a car position notification device according to an embodiment of the present invention.

FIG. 2 is a block diagram illustrating another main functional configuration of the CPU shown in FIG.

FIG. 3 is a flowchart illustrating the operation of this embodiment.

[Explanation of symbols]

 1 Car 2 Balance Weight 4 Electric Motor 12 CPU 17 Ringer 21 Counter 22 First Detecting Means 23 Second Detecting Means

Claims (1)

[Claims] 1. In an elevator in which a car and a counterweight are coupled to both ends of a rope wound around an electric motor, and the car and the counterweight are moved up and down by driving the electric motor, a position of the car and a position of the counterweight. And a second detecting means for detecting that the movement of the car has reached a predetermined position above or below the intermediate position, and A car position notification device for an elevator, comprising: a sounding device that is provided in a room and that sounds according to each detection signal of the first detection device and the second detection device.