JPS5882975A - Controller for elevator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an elevator management device for managing an abnormality in the landing stop position of an Fi car.

The elevator car is installed in the hoistway and is designed to land and stop within a predetermined range with respect to the landing area f'Lfc. However, the braking force of the elevator hoisting brake changes due to wear, and the condition of the lubricating oil due to wear and tear between the hoisting sheave and the main rope wrapped around the hoist. Due to changes in the driving force, the force may not stop within the predetermined range of the landing area, and if changes in the braking force and driving force progress, an accident may occur in which the car slides down. In order to prevent such accidents, it is necessary to perform maintenance and inspection at short intervals, but this has the disadvantage of increasing maintenance costs. .

The present invention solves the above-mentioned drawbacks, and aims to provide an elevator management system 1 that operates the control system when a car abnormally stops at a landing, thereby enabling timely maintenance and preventing accidents.

An embodiment of the present invention will be described below with reference to FIGS. 1 to 3.

In the figure, 0) is the elevator hoistway, (2) is the landing area, (2a) is the door of the landing area, and L3) is the hoistway (
1) A hoisting rope installed at the top, +4) A main rope that is wrapped around the illusion, and a main rope that is suspended from one end of the +51Fi main rope (4).
(5a) is the entrance/exit of this, (5b) is the car door that opens and closes the entrance/exit (5a), C61 is the counterweight provided at the other end of the main rope (4), and (7) ) is provided on the car door (5b) and placed on the surface facing the landing door (2a).
(7a) Fi is the normally closed first contact, (Vb) is the normally closed second contact of ij, and (8) is the upper detector [(similar to 71, but the lower part of this placed in n
In the lower detection device, (8a) is the normally closed first contact of this n.

(8b) f'i normally closed second contact, (9) normally open contact of the electromagnetic relay that operates when the heel (5) stops landing on the floor, (
II is the first control device consisting of alarm notifications such as buzzers, a
n is the second controller consisting of the control device 2) that stops the elevator.
Control equipment, (+) (-) is the power supply, az is the landing door (
2a) is attached to the surface facing the car door (5b), and when the car (5) stops at the normal position with respect to the landing (2), that is, within a predetermined range, the upper and lower detection devices (71 (81
This is a 9° reflector located at a position facing the

In other words, when the first hoist (3) is energized and the main rope (4) is moved, the counterweight (6) is driven in opposite directions and the heel (5) is moved to the landing. (2) 1 configured to cause implantation arrest in any of the cages (5
) is stopped, the contact (9) is closed, but the contact (9) is closed by the stop of the cage (5
) is within a predetermined range with respect to the landing (2), the upper and lower detection devices +71 (81) face the reflector α2 and operate respectively.This causes the first contact (7a
) (8a), the second contact (7b) (Ilt+) is open g
1. The second control system g Ql aυ will not operate. However, the stopping position of the car (5) is the landing position (2).
) is outside the predetermined range and the upper and lower detection devices 1 (7
)(8) If one of them does not face the reflecting plate 0, the detection device will not operate and the first one of part 1. Since the second contact is not open, ←) -191-(7a)-α1-0 or 0→-
(91-(8a)-(IQ-(→) causes the first control system II to be energized and an alarm to be issued. This alarm allows appropriate maintenance to be carried out in a timely manner.

Note that at this time, either of the second contacts (7b) (llb) is opened, so the second control device αυ is not energized. Also, the stopping position of the car (6) is far outside the predetermined range with respect to the landing (2).

Lower detection device @ (7) (If both 81 do not face the reflector 0, both the upper and lower detection device @ (7) (81 do not operate, and the first contact (7a) (8a) and the second Since the contact point (7'b) (Ib) is not opened, the first control device 1ml is energized and K, (+) -+91- (
7b) The second control device aυ is energized by the circuit -(llb)-61-(-), and the elevator is stopped.

This prevents a serious accident from occurring when the abnormality in the stop position of the heel (5) becomes serious.

Note that the first example in this example. Second detection device (71 (
It is clear that the same effect can be obtained even if 81 were a suitable proximity switch.

Detection of abnormalities in the stopping position of Matakato (5) at the lowest floor landing (
Even if it is performed only in 2), the same effect as in the embodiment shown in Figs. 1 to 3 is obtained. It is also possible to provide an inexpensive detection device in which a switch is arranged to perform the detection.

As explained above, this invention detects that the car has stopped outside the predetermined range with respect to the landing, controls the elevator in case of an abnormality, and automatically manages the brake abnormality on the first hoist and the abnormal drive of the main rope. So.

You can easily supervise and perform proper maintenance in a timely manner.

The ability to ensure safety with low maintenance costs; to realize an elevator management device that can

[Brief explanation of drawings]

FIG. 1 is a schematic longitudinal sectional side view of an elevator system showing one embodiment of the elevator management system according to the present invention, and FIG.
Fig. 3 is a cross-sectional plan view of the main parts in Fig. 1, and Fig. 3 is an electrical circuit diagram of the main parts in Fig. 1.
5)...basket, (7)...upper detection device, (81
- Lower detection device, OQ... 1st pipe 1m+1 device, (I
I...Second control device. Note that the same parts in Figure 9 are indicated by the same symbols. Agent Shin Kuzuno - 915! :1 Figure 2

Claims (1)

[Scope of Claims] In an elevator configured to land and stop a car at a landing provided in a hoistway of an elevator, the car may be provided in at least one of the hoistway and the above-mentioned landing point. A detection device that operates when the stop position is outside a predetermined range. An elevator management device characterized by comprising: a control device that is energized through the operation of the detection device to control the elevator in an abnormal situation.