JPH06329357A - Maintenance operating device of elevator - Google Patents

Abstract

PURPOSE:To provide a maintenance operation device for elevator which permits a single person to get into the upper part of an elevator car without provision of any particular device anew. CONSTITUTION:A maintenance operation device for an elevator is equipped with the first operating circuit to move the elevator car concerned from the first stop position to the second stop position in compliance with a push on a downward travel call button 8a, for example a downward travel command relay 20, downward operation relay 14, downward travel stop relay 16, and the second operating circuit which is to move the car from the second stop position to the first in response to the push on an upward travel call button 8b, for example an upward travel command relay 22, upward operation relay 15, upward travel relay 17. This accomplishes reduction of the equipment cost.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator maintenance operation apparatus for controlling a car during elevator maintenance work.

[0002]

2. Description of the Related Art Generally, maintenance and inspection in an elevator hoistway is carried out by a maintenance worker who gets on top of a car. That is, two people form a set, one person stands by in the hall, and the other person operates the maintenance operation button in the car so that the top surface of the car is at the same height as the floor of the predetermined floor. Then, the maintenance staff in the hall opens the door to get into the upper part of the car, and then ascends using the dedicated maintenance button on the upper part of the car to raise the car floor to the specified floor. According to the floor surface of the car, the maintenance personnel in the car once go into the hall.
After that, the maintenance staff on the upper part of the car descends with the dedicated button for maintenance to bring the upper surface of the car, that is, the upper surface of the car ceiling part and the floor surface of the predetermined floor into contact with each other to maintain the hall. It was supposed to get the staff to the top of the car.

On the other hand, when the maintenance and inspection work is finished, the maintenance staff at the upper part of the car makes the upper surface of the car match the floor surface of a predetermined floor with the dedicated maintenance button, and one of the maintenance staff stands by in the hall. To do. Then, the maintenance staff on the upper part of the car adjusts the floor surface of the car to the floor surface of the predetermined floor with the dedicated button for maintenance, and causes one of the maintenance staff in the hall to get into the car. The maintenance staff in the car operates the maintenance operation button to bring the top surface of the car into alignment with the floor surface of the predetermined floor, and causes the other maintenance staff at the top of the car to get down to the hall. After that, the maintenance operation button is operated to align the floor surface of the car with the floor surface of a predetermined floor, and the maintenance staff in the car also descends to the hall to finish the work.

Recently, however, it has been considered to perform maintenance and inspection in the hoistway by one person due to labor saving. However, when one person gets on the upper part of the car, the maintenance operation button in the car stops the car floor in line with the floor of a predetermined floor, and once exits the car and goes up to the first floor, that is, , Had to go up the stairs to the one above the floor where the car was stopped, then open the hall door to get into the top of the car. For this reason, if the floor pitch is high, there is a considerable step between the floor surface of the floor and the top surface of the car, which is dangerous. But two people had to do it.

In order to solve such a problem, conventionally, as described in JP-A-62-93192, a maintenance operation operating device operated by a maintenance worker is provided near the entrance of a predetermined floor, and In the operation circuit of the car, the operation circuit for stopping the car by matching the floor surface of the car with a predetermined floor according to the maintenance operation device, and the upper surface of the car as the floor surface of the predetermined floor. A driving circuit for stopping the car is also proposed.

[0006]

By the way, in the above-mentioned conventional device, it is necessary to newly install a maintenance operation device in the vicinity of the entrance and exit of a predetermined floor, which causes a problem that the installation cost is increased. It was

The present invention has been made in view of the above-mentioned problems, and an object thereof is to perform maintenance operation of an elevator, which allows one person to board the upper part of a car without the need to install a special device. To provide a device.

[0008]

In order to achieve this object, the present invention provides a first stop position where the floor surface of a car is aligned with the floor surface of a predetermined floor, and the upper surface of the car is at the predetermined floor. In an elevator maintenance operation device capable of stopping the car at a second stop position that matches the floor surface of the floor, at least 1
A first moving the car from the first stop position to the second stop position in response to operation of a down call button on one floor;
And a second operation circuit for moving the car from the second stop position to the first stop position in response to operation of at least one floor rise call button. is there.

[0009]

Since the present invention is configured as described above, at the time of maintenance and inspection, the maintenance personnel operates the descending call button to form the first operation circuit, and the floor surface of the car is set to the floor of the predetermined floor. The car is moved from the first stop position where the car is aligned with the surface to the second stop position where the upper surface of the car is aligned with the floor surface of the predetermined floor to stop the car. In this state, the maintenance personnel board the car and work on it. On the other hand, at the end of the maintenance work, the maintenance personnel operates the lift call button to form the second operation circuit, moves the car from the second stop position to the first stop position, and stops the car. , It is designed to return to the normal state. In this way, the car can be moved to the first stop position and the second stop position by operating the descending call button or the ascending call button. You can get on the top of the car with.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an elevator maintenance operation apparatus of the present invention will be described below with reference to the drawings. 1 is an electric circuit diagram showing an embodiment of an elevator maintenance operation apparatus of the present invention, FIG.
Is a side view for explaining a first stop position of the car, and FIG. 3 is a side view for explaining a second stop position of the car.

As shown in FIGS. 2 and 3, an elevator generally includes a car 3 that moves up and down in a hoistway 2 through a main rope 1, and landing doors 4 and 5 that can face the car 3. The halls 6 and 7 provided, the hall call buttons 8a provided on the halls 6 and 7 for registering the descending call, and the hall call button 8b having the ascending call button 8b for registering the ascending call of the car 3; A first position detection switch 9 for detecting a first stop position where the floor surface 3a of the car 3 is aligned with the floor surface 5a of the hall 5, and a first actuating cam 9c for actuating the first position detection switch 9 And a second detection switch 10 for detecting a second stop position where the upper surface 3b of the car 3 and the floor surface 5a of the hall 5 are detected, and the second detection switch 10
And a second actuating cam 10c for actuating the.

As shown in FIG. 3, the maintenance operation apparatus of this embodiment has power supplies P and N and one end connected to the power supply P.
A speed changeover switch 11 provided in the car 3, a speed changeover switch 11 at one end and a power supply N at the other end, and a high speed relay 12 for operating the car 3 at high speed, and a speed changeover switch 11 at one end, The other end is connected to the power supply N and the car 3
Low speed relay 13 that operates at a low speed, a normally open contact 13a of the low speed relay 13 whose one end is connected to the power source P, and a descending command relay 20 described later whose one end is connected to the normally open contact 13a.
Normally open contact 20a, a normally closed contact 16b of a descending stop relay 16 to be described later, one end of which is connected to the normally open contact 20a, one end of which is a normally closed contact 16b, and the other end of which is connected to a power supply N. A descending operation relay 14 for descending operation, a normally-open contact 22a of a later-described ascending command relay 22 whose one end is connected to the normally-open contact 13a, and a normally-stopping relay 17 of a later-described ascending stop relay 17 whose one end is connected to the normally-open contact 22a. A closed contact 17b, one end of which is a normally closed contact 17b and the other end of which is connected to a power supply N, and an ascending operation relay 15 which ascends the car 3 and one end of which is a normally open contact 1
The second position detection switch 10 connected to 3a.
And one end is the second position detection switch 10 and the other end is the power supply N.
, A lowering stop relay 16 for stopping the car 3 that descends, a first position detecting switch 9 having one end connected to the normally open contact 13a, and a first position detecting switch 9 having one end. The other end is connected to the power supply N and the raising stop relay 17 for stopping the car 3 that is moving up, one end is connected to the power supply P, a low speed switch 18 provided on the car 3, and one end is the low speed switch 18, The other end is connected to the power supply N, and the blocking relay 1 that blocks the call registration of the hall call button 8
9 and the down call button 8a described above whose one end is connected to the power source P.
And a low speed relay 13 whose one end is connected to the descend call button 8a.
Normally open contact 13a, a normally closed contact 19b of the blocking relay 19 whose one end is connected to the normally open contact 13a, one end of the normally closed contact 19b, and the other end of which is connected to the power supply N, so that the lowering operation of the car 3 can be performed. A descending command relay 20 for commanding and a descending call button 8 at one end
The normally closed contact 13b of the low-speed relay 13 connected to a, the normal car call relay 21 having one end connected to the normally closed contact 13b and the other end connected to the power supply N, and the above-described rising call having one end connected to the power supply P. Button 8b, one end of normally open contact 13a of low-speed relay 13 connected to ascend call button 8b, and one end of normally open contact 1
A normally closed contact 19b of the blocking relay 19 connected to 3a,
One end is a normally closed contact 19b, the other end is connected to a power supply N, and an ascending command relay 22 for instructing an ascending operation of the car 3, and one end is a normally closed contact 13b of a low speed relay 13 connected to an ascending call button 8b. , A normally closed contact 13b at one end and a normal car call relay 23 connected at the other end to the power supply N.

The first operation circuit for moving the car 3 from the first stop position to the second stop position in response to the operation of the down call button 8a is, for example, the above-described down command relay 20 and the down command relay. The second operation circuit that includes the operation relay 14 and the descent stop relay 16 and moves the car 3 from the second stop position to the first stop position in response to the operation of the ascend call button 8b includes, for example, the above-described device. Lift command relay 2
2. It consists of an ascending operation relay 15 and an ascending stop relay 17. Further, the descending call buttons 8a of all floors can form the first operation circuit, and the ascending call buttons 8b of all floors can form the second operation circuit.

In this embodiment, when carrying out the maintenance work by getting on the car 3, the maintenance staff first matches an arbitrary floor, for example, the floor 6a of the hall 6 and the floor 3a of the car 3. In addition, the car 3 is stopped at the first position, and the boarding speed changeover switch 11 is switched to the low speed side in the car 3. As a result, the power source P-speed changeover switch 11-low speed relay 1
3-A circuit of the power supply N is formed, the low-speed relay 13 is excited, and the normally-open contact 13a is closed as the low-speed relay 13 is excited. After that, when a maintenance person who has exited from the car 3 to the hall 6 operates the lowering call button 8a, the power supply P-the lowering call button 8a-the normally open contact 13a-the normally closed contact 19b-the lowering command relay 20-the power supply N circuit. Is formed, and the descending command relay 20 is excited. The normally open contact 20a is closed by the excitation of the descending command relay 20, and the power source P-normally open contact 13a-
Normally open contact 20a-Normally closed contact 16b-Descent operation relay 14
The circuit of the power supply N is formed. As a result, the descending operation relay 14 is excited, and the car 3 performs descending operation at a low speed.
Next, when the car 3 reaches the position shown by the dotted line from the first stop position shown by the solid line in FIG. 2, that is, the second position, the second position detection switch 10 comes into contact with the operating cam 10c to operate. Thereby, the power source P-the normally open contact 13a-the second
Position detection switch 10-descent stop relay 16-power supply N
Circuit is formed, and the descent stop relay 16 is excited. The normally closed contact 16b is opened in response to the excitation of the descending stop relay 16, the descending operation relay 14 is demagnetized, and the car 3 stops the descending operation and stops. In this state, the maintenance staff is in the hall door 4
Open and get on the car 3, and operate the car 3 with the operation panel for maintenance (not shown) to perform maintenance and inspection. During this work, the maintenance person turns on the low speed switch 18 and turns on the power supply P.
Forming a circuit of the low speed switch 18-the blocking relay 19-the power supply N. As a result, the blocking relay 19 is excited, the normally closed contact 19b is opened, and the hall call button 8 is operated to prevent the down command relay 20 and the up command relay 22 from being excited.

Upon completion of the inspection, the maintenance staff stops the car 3 at the second stop position where the floor 6a of the hall 6 and the upper surface 3b of the car 3 are combined as shown in FIG.
Turn off 8 and get off at hall 6. Then, the ascending call button 8b is operated to turn on the power source P-ascending call button 8b-normally open contact 1
A circuit of 3a-normally closed contact 19b-rise command relay 22-power source N is formed. Along with this, the rising command relay 22 is excited and the normally open contact 22a is closed. Due to this closed circuit, the power source P-normally open contact 13a-normally open contact 22a-normally closed contact 17b.
-Climbing operation relay 15-A circuit of the power supply N is formed, the rising operation relay 15 is excited, and the car 3 performs a rising operation at a low speed. When the car 3 reaches the first stop position shown by the dotted line from the second stop position shown by the solid line in FIG.
The position detection switch 9 comes into contact with the operation cam 9c to operate. As a result, a circuit of the power supply P, the normally open contact 13a, the first position detection switch 9, the lift stop relay 17 and the power supply N is formed, and the lift stop relay 17 is excited. The normally closed contact point 17b is opened in response to the excitation of the ascending / descending relay 17, and the ascending operation relay 15 is de-energized so that the car 3 stops ascending operation and stops. In this state, the maintenance person gets into the car 3 and switches the speed changeover switch 11 to the high speed side. In response to this, the low-speed relay 13 is demagnetized, the normally closed contact 13b is closed, the normal car call relays 21 and 23 can be excited, and the elevator is restored to the normal state.

In the embodiment thus constructed, the car 3 is operated by operating the descending call button 8a or the ascending call button 8b.
Since the vehicle can be moved to the first stop position and the second stop position, it is possible for one person to board the upper part of the car 3 without the need to install a special device. Also,
Down call button 8a or up call button 8b on all floors
By making it possible to form the first stop circuit or the second stop circuit, the maintenance staff can get on the car 3 from any floor to improve the workability. Can be achieved.

In this embodiment, it is possible to form the first stop circuit by the down call buttons 8a of all floors and the second stop circuit by the up call buttons 8b of all floors. Is not limited to this, and the first stop circuit or the second
The stop circuit may be formed. In addition, the car 3 using the position detection switches 9 and 10 and the operation cams 9c and 10c
Although the stop position is detected, the stop position is not limited to this, and the stop position may be stored in the elevator operation control unit, or the stop position may be detected by another detection unit.

[0018]

EFFECTS OF THE INVENTION Since the present invention is constructed as described above, there is no need to newly install a special device such as a maintenance operation device,
There is an effect that one person can board the upper part of the car, and therefore the installation cost can be reduced.

[Brief description of drawings]

FIG. 1 is an electric circuit diagram showing an embodiment of an elevator maintenance operation apparatus of the present invention.

FIG. 2 is a side view illustrating a first stop position of a car.

FIG. 3 is a side view illustrating a second stop position of the car.

[Explanation of symbols]

 3 Car 3a Floor 6 Landing 6a Floor 8 Landing call button 8a Down call button 8b Up call button 9 First position detection switch 10 Second position detection switch 13 Low speed relay 14 Down operation relay (First operation circuit ) 15 rising operation relay (second operating circuit) 16 falling stop relay (first operating circuit) 17 rising stop relay (second operating circuit) 20 falling command relay (first operating circuit) 22 rising command relay ( Second driving circuit)

Claims (1)

[Claims] 1. A car at a first stop position where a floor surface of a car is aligned with a floor surface of a predetermined floor, and a second stop position where an upper surface of the car is aligned with a floor surface of the predetermined floor. In a maintenance operation device for an elevator capable of stopping a vehicle, a first operation circuit for moving the car from the first stop position to the second stop position in response to an operation of a down call button on at least one floor. And moving the car from the second stop position to the first position in response to operation of at least one floor rise call button.
And a second operation circuit for moving to a stop position of the elevator maintenance operation device.