JPH03158368A - Operating device of elevator - Google Patents

Abstract

PURPOSE:To carry out a maintenance and inspection work near the uppermost floor on a cage safely by providing an operation control means to raise the cage from the floor lower one floor from the uppermost floor to the uppermost floor at a low speed, to an inspection device, and a manual operating member to instruct an inspection operation, on the cage. CONSTITUTION:When an inspection switch 19 provided on a cage 14 is turned on by a worker on the cage 14, the cage 14 is run responding to an uppermost floor call, and when the cage 14 reaches to the floor lower one floor from the uppermost floor and a position detector outputs it, the operation input to a high speed operation instruction is prohibited. Furthermore, by the output of a speed reduction position detecting device at the floor lower one floor, a high speed operating device is cut off, the speed of the cage 14 is reduced, and the cage 14 is raised to the uppermost floor as it is at a low speed. Consequently, since the cage is operated from the floor lower one floor from the uppermost floor to the uppermost floor at a low speed, the worker can carry out the maintenance and the inspection near the uppermost floor safely and easily.

Description

[Detailed description of the invention] [Purpose of the invention] (Industrial application field) Concerning safe operation equipment during maintenance and inspection of elevators.

(Prior art) Conventionally, in hydraulic elevators and other elevators where the space between the lower surface of the hoistway ceiling and the ceiling of the car is narrow, in order to ensure the safety of inspection work on the car, the car was moved to a fixed position on the top floor during inspection. I stopped it just short of the distance to prevent it from climbing any further.

Conventional normal operation and inspection operation will be explained with reference to the control circuit diagram shown in FIG.

Operation control in the case where the car is stopped on the first floor and a car call occurs from the second floor will be explained.

First, the upward driving direction is selected based on the relationship between the car position and the call (not shown).With 0 doors closed and the car in the predetermined position, the conditions for normal operation are established, the normal operation device 1 outputs an output, and high-speed operation is started. The command Ry (relay) 2 is turned on, the operation command device 3 is activated, the ascending operation Ry4 is inputted, and then the high-speed operation R175 is inputted, and the car accelerates to a constant speed running. Continuing to ascend, the deceleration switch 8 opens a certain distance before the deceleration distance through the registered second floor car call R1/6 and the diode 7 between the first and second floors, and the deceleration detection Ry10 is activated. The high-speed operation command RV2 is released. By continuing to drive further, 2
The deceleration switch Sw 8 on the rising side of the floor opens before the deceleration distance of the second floor, releases the deceleration detection Ry 10, and also releases the high-speed operation RVS. As a result, the car starts decelerating, the operation command device W3 switches to the landing operation, the output of the operation command device 3 is stopped, and the elevator runs at a low speed until the ascending operation Ry4 is released.

As mentioned above, the car is in the ascending operation RV4 or the descending operation RV
9 for low-speed running, and high-speed operation RV5 for high-speed running.

Next, in the inspection operation control, inspection Rytt (not shown) is turned on and its b contact 11A is opened, and the operation command device 3, which operates in response to the call, switches to inspection operation, and at the same time releases the high-speed operation command ItV2. .

Next, when the inspection raise (UP) button 12 is pressed, the raise operation R174 is started via the operation command device 3, and the car ascends at a low speed. i & When the car travels a certain distance before the upper floor, the forced stop Swl 3 opens, releases the ascending operation RV4, and prohibits the car from moving upward any further.

In the elevator whose operation is controlled as described above, the car 14 ascends in the hoistway 15 as shown in the traveling curve shown in FIG. Stop.

(As explained above, when an elevator with a low hoistway ceiling, such as a hydraulic elevator, is inspected, the car is forcibly stopped a certain distance before the top floor. However, if maintenance and inspection near the top floor is required, the regulations apply as above, so normal operation must be carried out to the top floor, and workers on the car should be near the top floor near the hoistway ceiling. There is a risk of collision.

An object of the present invention is to provide a safe operating device for inspection work by allowing the vehicle to travel at a low speed up to the top floor during inspection.

[Structure of the invention]

(Means for Solving the Problems) In order to achieve the above object, the present invention first provides a manual rubbing part on the car among the inspection operation command means for safely driving the car to the top floor, and the inspection operation command An inspection operation device is provided which has a means part, a control means for prohibiting input to the high-speed operation command device during inspection operation, and a control means for ascending at a low speed from a floor one floor below the top floor.

(Function) Based on the output of the installed inspection operation device, when the car travels in response to the top floor call and reaches the floor one floor below the top floor, and the position detector outputs, the operation input to the high speed operation command is prohibited. . Furthermore, the high-speed operation device is disconnected based on the output of the deceleration position detection device on the floor below 1ili7, and the car is decelerated and ascends to the top floor at a low speed.

(Example) Based on the example shown in FIG. 3(b) and FIG. 1, one embodiment of the present invention will be explained based on the case of stopping on the third floor from the first floor.

An inspection operation device 16 consisting of the control circuit shown in FIG. 1 is added to the circuit of the aforementioned operation device (FIG. 2).

That is, the device is provided with an inspection Sw19 that is manually inserted on the car, and also includes a deceleration position detection RV17, an inspection operation Ryi8, etc., and has means for disconnecting the high-speed operation RV5 when the inspection operation RV18 starts. If the operating device is configured as described above, the operation will be as follows.

When the car is on the 1st floor, a car call is made on the 3rd floor, and the inspection operation Sw19 installed on the car shown in Fig. 1 is closed.
A high-speed operation command R is activated in a predetermined manner by the control circuit shown in
The 1/2 and upward operation Ry4 is excited, and the high-speed operation RV5 is excited through the a contact, and the car accelerates upward and runs at the rated speed as in normal times. As the car rises, the ascending side deceleration SW8 on the second floor is closed, the deceleration position detection Ry17 is excited, and inspection operation R18 is started. This allows high-speed driving
5 is disconnected, but the high-speed operation RV5 is kept closed by the contact of the deceleration position detection Ry17. Continuing the journey, the deceleration switch Sw8 opens before the second floor by a deceleration distance corresponding to the elevator speed, releases the deceleration position detection R1717 and the high speed operation RV5, and the elevator starts decelerating. On the other hand, the high speed operation command RV2 is not released until the deceleration 5w20 of 3PJ is activated, so the operation command device 3 does not switch to the landing operation, and even after shifting to the deceleration operation, the upward operation RV4 is set to 2.
Since the maintenance worker on the car is not released at the floor level and continues to drive at low speed to 3Pt;, the maintenance worker on the car can run at low speed from the floor below when driving to the top floor. This allows workers to safely ascend to the top floor while paying attention to their surroundings, and easily perform maintenance and inspection near the top floor. As another example, an alarm device may be linked to the operational output of the safety driving device to warn the operator to prevent danger.

〔Effect of the invention〕

According to the present invention, during maintenance and inspection, it is possible for a worker to ascend to the top floor at a low speed from the floor one floor below the top floor while remaining on the car, allowing maintenance and inspection work near the top floor to be carried out safely.
It can be easily implemented.

[Brief explanation of the drawing]

FIG. 1 is a control circuit diagram of the inspection operation device according to the present invention, FIG. 2 is a control circuit diagram of a conventional operation device, and FIGS.
b) is an explanatory diagram comparing the running characteristics of the conventional cars (a) and the present invention (b). ■... Normal operation device 3... Operating instruction device 16.
...Inspection operation device 19...Inspection Sw Inspection operation R1/

Claims (1)

[Claims] In an elevator operation system that uses a normal operation device that operates in response to a car call, and an operation command device and an inspection operation device that operate in conjunction with the normal operation device, the inspection device is operated from the floor one floor below the top floor. 1. An elevator operation device, characterized in that an elevator operation control means for ascending to the top floor at a low speed is provided, and a manual operation section for instructing this inspection operation is provided on the car.