JPH04298472A - Elevator operating device - Google Patents

Abstract

PURPOSE:To provide an elevator operating device of which maintenance and inspection work in a pit by only one worker without taking troublesome advance steps. CONSTITUTION:An elevator operating device is provided with a parking command relay 6 which guides a cage to a parking floor set at the lowest first floor to stop its running, and a pit work switch 1 which lights up an illuminating lamp 5 installed at the lower surface of the cage. It is possible to conduct, by only one worker, maintenance and inspection work in a pit safely and at a low cost without taking troublesome advance steps only by operating the pit work switch.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator operating system, and more particularly to an elevator operating system that allows a car to perform a parking operation during work in a pit.

0002

2. Description of the Related Art A pit is provided at the lowest floor on which an elevator is operated, and various elevator operating members such as shock absorbing buffers are arranged within this pit. In order to maintain the optimal operating condition of the operating components inside these pits, workers must periodically enter the pit to perform maintenance checks on the operating conditions of the operating components located inside the pit, and to check the waterproof condition. It is necessary to check the integrity of the

Conventionally, in order to carry out maintenance and inspection work inside the pit, a worker operated a switch on the operation panel inside the car and moved the car to the floor one floor above the lowest floor. Operate the car, stop the car on that floor, and operate the pit inspection switch. The workers then opened the landing door on the lowest floor and descended into the pit to perform maintenance and inspection work inside the pit. In this case, set the car out of operation or keep the car stationary on that floor so that the car does not operate and endanger the workers in the pit. It is necessary to have another worker supervising the situation.

0004

[Problems to be Solved by the Invention] As mentioned above, during conventional maintenance and inspection work inside a pit, a worker gets into the car, drives the car to the lowest floor, and then moves the car to the floor. After stopping the pit and operating the pit inspection switch, the operator must go down into the pit and perform maintenance and inspection work. In this case, in order to prevent workers in the pit from being exposed to danger due to the car being operated during maintenance and inspection work, measures must be taken to suspend the operation of the car, or to move the car to the lowest position where the car is stopped. It is necessary to station another worker on the floor one floor above the floor for monitoring purposes and to keep the car stationary on that floor. In addition, lighting lights may have to be brought in, and a fairly complicated arrangement must be made before maintenance and inspection work can be carried out, and conventional maintenance and inspection work inside the pit places a great burden on workers. was giving. Further, when a worker is assigned for monitoring and maintenance and inspection work is performed, at least two workers are required, which causes a problem in terms of maintenance and inspection work costs.

The present invention was made in view of the current state of maintenance and inspection work in elevator pits as described above, and its purpose is to safely perform maintenance and inspection work in elevator pits by one worker. The objective is to provide an elevator operating device that can perform

[0006]

[Means for Solving the Problems] The object is to provide a parking means for driving a car to a floor one floor above the lowest floor and putting the car out of operation on the said free floor, and the parking means. This is achieved by providing a pit work switch that operates the pit work switch, and a lighting means that lights up the lighting means attached to the outer peripheral lower surface of the car when the pit work switch is turned on.

[0007]

[Function] With this structure, when a worker operates the pit work switch during maintenance and inspection work inside the pit, the parking means is activated and the car is moved to the floor one floor above the lowest floor. The car is then operated until the floor is reached, and the car becomes out of operation at that floor. Furthermore, when the pit work switch is turned on, the lighting means is activated, and the lighting means attached to the lower surface of the outer periphery of the car is turned on. Therefore, the worker who has entered the pit can safely carry out maintenance and inspection work in the pit under the illumination of the lighting means of the car, which is in an out-of-operation state and does not need to be monitored by other workers.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to a block diagram (FIG. 1) showing its configuration. In FIG. 1, P and N are DC power terminals, and a pit work switch 1 and a relay 2 are connected in series between the DC power terminals P and N. Similarly, between the DC power terminals P and N, A normally open contact 3B of a call button in the car (not shown), a normally closed contact 4F1 of a relay (not shown) that is energized when the car reaches the floor one floor above the bottom floor (parking floor), and the parking floor Car call registration relays 3 are connected to each other in series. The normally open contact 3a of the car call registration relay 3 and the normally open contact 2 of the relay 2
a are connected in parallel to the normally open contact 3B.

Furthermore, the normally open contact 2b of the relay 2 between the DC power terminals P and N and a lighting lamp 5 (not shown) attached to the lower surface of the outer periphery of the car are connected in series with each other. Normally open contact 2c of relay 2 between DC power terminals P and N,
A normally open contact 4F2 of a relay (not shown), which is energized when the car arrives at the parking floor, and a parking command relay 6 are connected in series to each other.

In an embodiment having such a configuration, the relay 2, the normally open contact 2c, the normally open contact 4F2, and the parking command relay 6 constitute the parking means of the present invention, and the illumination lamp 5 constitutes the illumination means of the present invention. The relay 2 and the normally open contact 2b constitute the lighting means of the present invention.

Next, the operation of the embodiment will be explained. When a worker operates the pit work switch 1 while the car is stopped on a floor other than the parking floor (for example, the second floor), the DC power terminal P, the pit work switch 1, the relay 2, and the DC power terminal At N, a closed circuit is formed and relay 2 is energized. When relay 2 is energized, normally open contacts 2a, 2b,
2c is closed, a closed circuit is formed by the DC power supply terminal P, the normally open contact 2a, the normally closed contact 4F1, the car call registration relay 3, and the DC power supply terminal N, and the car call registration relay 3 is energized. When the car call registration relay 3 is energized, the normally open contact 3a is closed and the DC power terminal P, the normally open contact 2a, and the normally closed contact 4F1 are connected.
, the car call registration relay 3 and the DC power supply terminal N form a closed circuit, and the car call registration relay 3 enters a self-holding state.

In this way, the car call registration relay 3 is energized, so the car moves toward the parking floor (one floor above the bottom floor), and at the same time the normally open contact 2b is closed. Then, a closed circuit is formed by the DC power terminal P, the normally open contact 2b, the illuminating lamp 5, and the DC power terminal N, so that the illuminating lamp 5 is turned on. When the car arrives at the parking floor, the normally closed contact 4F1 opens, so the car call registration relay 3 becomes inactivated. In addition, since the normally open contact 2c is closed by the energization of the relay 2, when the car arrives at the parking floor and the normally open contact 4F2 is closed, the DC power terminal P
, the normally open contact 2c, the normally open contact 4F2, the parking command relay 6, and the DC power supply terminal N form a closed circuit, and the parking command relay 6 is energized. In this way, the parking command relay 6 is energized, so that the car is in a non-operational state at the parking floor.

When the operation is stopped, the lighting lamp 5 attached to the lower surface of the outer periphery of the car illuminates the inside of the pit provided on the floor one floor below the parking floor. By opening the landing door on the floor, you can safely descend into the pit and perform maintenance and inspection work. Since the car is out of operation and the car call registration relay 3 is not energized as described above, the car may be in operation during maintenance and inspection work in the pit, exposing workers to dispatch. This allows workers to safely perform maintenance and inspection work inside the pit. Of course, there is no need for workers to monitor cars on the parking floor to prevent them from moving.
The maintenance and inspection work inside the pit can be easily carried out by a small number of workers, which is advantageous in terms of maintenance and inspection work costs.

[0014]

Effects of the Invention As explained above in detail, in the present invention, simply by operating the pit work switch, the parking means is activated and the car is moved to the parking floor set at the floor one floor above the lowest floor. When the car is put into operation and then put out of operation, the lighting means attached to the bottom of the outer periphery of the car illuminates the inside of the pit, so workers have to take complicated preliminary measures such as shutting down the car and bringing in lighting lights. One person can safely perform maintenance and inspection work by going down into the pit without having to take any equipment, and the cost of maintenance and inspection work is also reduced.

[Brief explanation of drawings]

FIG. 1 is a circuit diagram showing the configuration of an embodiment of the present invention.

[Explanation of symbols]

1 Pit work switch 2 Relay 3 Car call registration relay 5　Lighting light 6 Parking command relay

Claims (1)

[Claims] 1. Parking means for moving a car to a floor one floor above the lowest floor and placing the car in a non-operating state on the floor; and a pit work switch for operating the parking means; An elevator operating device comprising: lighting means for lighting a certification means attached to the outer peripheral lower surface of the car when the pit work switch is turned on.