JP2000198636A - Maintenance operating device for elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable the operation with a maintenance operating means at a floor on the way of movement by forming a maintenance operating means of two push button switches for registering the raising operation and the lowering operation of a car and a switch for switching the operation by both the push buttons between effective and ineffective. SOLUTION: At the time of maintenance of an elevator, a low-speed switch inside a car is switched by a maintenance worker in the car 11, and a maintenance operating button 7 is operated so as to stop the car while lowering the means 11 a little. A hatch door is opened, and the maintenance operating car 1 hooked on the car at a position facing to an elevator hall is held by hand, and a changeover switch 2 is switched so that the operation of the maintenance operating push puttons 6, 7 in the car is ineffective, and on the other hand, the operation of a raising and a lowering push buttons 3, 4 of the maintenance operating means A is effective. The lowering push button 4 is pushed while pushing a short-circuit switch 5, and after lowering the car 11, a maintenance worker gets on the top surface of the car from an elevator hall for maintenance work.

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 device.

[0002]

2. Description of the Related Art Conventionally, this type of apparatus has been disclosed in
As described in Japanese Patent No. 80339, a connector has been proposed in which a connector is arranged at a position facing an elevator hall near an upper part of a car door of a car, and maintenance operation means can be connected to the connector by the elevator hall. ing.

[0003]

According to the above-mentioned prior art, the operation in the car stops the car in a state where the car floor is slightly lower than the floor of the elevator hall, and then exits the elevator hall. It is possible to connect maintenance operation means to the connector. However, in a general elevator, a switch for enabling the operation by the maintenance driving means is often installed on the car of the car. This gives the person who is on the car the option of switching the car to be operated by the maintenance driving means or in the car, and drives the car on the car This is to ensure human safety. Therefore, the car cannot be operated by the maintenance driving means simply by enabling the maintenance driving means to be connected from the elevator hall.

[0004] It is an object of the present invention to provide an elevator maintenance and operation device capable of making the operation operation by the maintenance operation means effective without going on the car.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to perform maintenance operation of an elevator provided with a car door provided in a car and a hatch door provided in an elevator hall, the hatch door being engaged with the car door and opened and closed. A maintenance operation device for an elevator, which is operated outside the car and includes detachable maintenance operation means for operating the car, wherein the maintenance operation means registers the ascending operation of the car. This can be achieved by a configuration including a pushbutton switch for performing the operation, a pushbutton switch for registering the descending operation of the car, and switch means for switching between the validity and invalidity of the operation by the two pushbutton switches.

As described above, the changeover switch means is provided in the maintenance operation means so that the operation operation by the maintenance operation means can be made effective and the operation operation from inside the car can be made invalid. Inside the elevator, lower the car a little (about the upper part of the hatch door) and stop it. After exiting the elevator hall,
The car can be operated in the elevator hall by the maintenance operation means hanging on the portion of the car facing the elevator hall.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 is a block diagram of the maintenance operation means, FIG. 2 is a circuit diagram of a main part of the maintenance operation means, and FIG. 3 is an explanatory view of car movement.

In FIG. 1, reference numeral 1 denotes a maintenance operation means, in which a push button 3 for registering an ascending operation of a car;
A push button 4 for registering the descending operation of the car, a push button 3 and a changeover switch 2 for switching the push buttons 4 between valid and invalid. In this maintenance operation means 1, FIG.
As shown in the figure, the short-circuit switch 5 is connected in parallel to the hatch-door switch 10 for confirming that the hatch door is completely closed, and while the short-circuit switch 5 is pressed, the operation of the hatch-door switch 10 is invalidated, and When the hand is released from the switch 5, the short-circuit switch 5 is opened. Further, as shown in FIG. 2 (b), by switching the changeover switch 2, the maintenance operation operation from inside the car becomes invalid, and the operation by the maintenance operation means 1 becomes effective. The raising and lowering push buttons 3 and 4 of the maintenance operation means are closed while being pressed, and are opened when the hand is released.

The operation of getting on and off the upper surface of the car at the time of maintenance and inspection work in such a configuration will be described.

First, a maintenance person gets into the car 1, switches a low-speed switch in the car, and operates the maintenance operation button 7 to lower the car 11 a little (about the upper position of the hatch door). Drive, stop and get down to the elevator hall. Next, the hatch door is opened, the maintenance operation means 1 hanging on the portion of the car facing the elevator hall is picked up (see FIG. 3), and the changeover switch 2 is switched to perform the maintenance operation in the car. The push buttons 6 and 7 are disabled, and the up and down operation push buttons 3 and 4 of the maintenance operation unit 1 are enabled. Next, when the descent operation push button 4 is pressed while the short circuit switch 5 is pressed, the descent operation relay 9 is energized, and the car 11 starts the descent operation. Then, the car 11 is lowered from the elevator hall to a position where the car can be mounted on the upper surface of the car 11 (see FIG. 4), the hand is released from the lowering push button 4, and the car 11 is stopped at that position. . And the maintenance staff is car 11
And performs maintenance work by operating the maintenance operation means 1 while performing maintenance work on components and instruments in the hoistway. In this case, if necessary, the changeover switch 2 is switched to disable the circuit of the maintenance operation means 1, to enable the maintenance operation circuit in the car, and to perform the maintenance operation in the car. it can.

After the maintenance and inspection work is completed, the maintenance personnel
The car 11 is run from the upper surface of the car 11 to a position where it can get down to the elevator hall, the car 11 is stopped at the position, and the passenger descends to the elevator hall. By pushing the button, the ascending operation relay 8 is urged to raise the car 11 to a position at which the maintenance person can get into the car, and then releases the hand from the ascending operation push button 3 to stop the car 11.

Then, the maintenance person switches the changeover switch 2 to disable the circuit of the maintenance operation means 1 and to enable the circuit in the car. The maintenance operation means 1 is hooked on the hook above the car door, and the passenger enters the car 11 to close the hatch door. Push the ascending operation push button 6 in the car to perform the ascending operation, release the ascending operation push button 6 at a position where the floor surface of the car 11 and the elevator hall floor surface are horizontal, stop the car, and Finish the work.

As described above, according to the present embodiment, by providing the changeover switch 2 conventionally installed on the car of the car in the maintenance operation means 1, one maintenance person can use the car in the elevator hall. Can be maintained to a predetermined position, and it is easy to get on and off the upper surface of the car 11 from any floor of the elevator hall. It can be done efficiently in a short time regardless of

[0015]

As described above, according to the present invention, according to the present invention, the maintenance operation means is operated at the car position where the car door and the hatch door of the elevator do not engage and at the position near the hatch door where the car is opened. The maintenance operation means is provided with a changeover switch, and the car is operated from the outside by this maintenance operation means, so that the car can be maintained from any elevator hall on any floor without being affected by the structure of the building and the rise in height. Since only one person can easily get on and off the upper surface of the car, the maintenance and inspection work of the elevator can be efficiently performed in a short time.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a maintenance operation unit of the present invention.

FIG. 2 is a circuit diagram of a main part of the maintenance operation body according to the embodiment of the present invention.

FIG. 3 is an explanatory view of a car movement according to the present invention.

FIG. 4 is an explanatory view of car movement according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Maintenance operation means 2 Changeover switch 3 Push button for car up operation 4 Push button for car up operation 11 Riding car

Claims (2)

[Claims] 1. A maintenance operation of an elevator, comprising: a car door provided in a car; and a hatch door provided in an elevator hall, the hatch door being engaged with the car door to open and close. An elevator maintenance operation device that is externally operated and includes detachable maintenance operation means for operating the car, wherein the maintenance operation means includes a push button switch for registering an ascending operation of the car, and a lowering of the car. An elevator maintenance operation device, comprising: a push button switch for registering operation; and switch means for switching between validity and invalidity of operation by the two push button switches. 2. The elevator maintenance and operation apparatus according to claim 1, wherein said maintenance operation means includes a shortening switch means for enabling operation of the car when the door is open.