JPS62105876A - Safety device 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 [Field of Industrial Application] The present invention relates to an elevator safety device for ensuring the safety of passengers getting on and off the elevator.

[Conventional technology]

In general, elevator operation control is started according to a predetermined speed pattern that provides a comfortable ride depending on the distance to the called floor, and when the elevator is near the floor where it stops, it is controlled by position detection means installed in the hoistway. By detecting the position and controlling the deceleration, traveling control is performed so that the vehicle accurately lands on the floor and stops.

[Problem that the invention seeks to solve]

Conventional elevators are controlled as described above, so
Load condition of car, misadjustment of braking device.

Due to misalignment in the setting of the position detection means, etc., it is not possible to land accurately on the stopping floor, and the car stops with the car floor and the platform threshold misaligned. There was a problem with stumbling (hazardous).

This invention was made in order to solve the above-mentioned problems, and it is an elevator that can prevent passengers from tripping on the car or landing threshold even if the elevator floor is misaligned when the elevator stops. The purpose is to obtain a safe gW.

[Means for solving problems]

The safety device for an elevator according to the present invention is provided with a warning means for emitting a warning light or a warning sound below the threshold of the entrance of the car.

[Effect]

In the elevator safety device of this invention, when the car door is opened on a stopping floor, a warning light or warning sound is emitted from the gap between the car and the landing threshold, which alerts passengers getting on and off the car. It is something that can be done.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings.

Fig. 1 This is a diagram when the elevator car 1 is accurately stopped at the platform 2. In the figure, 3 is the car door, 4 is the platform door, and 5 and 6 are the corner sill and platform, respectively. is the threshold of
7 is a hanging rope for suspending the car, 8 is installed under the floor of car 1, and a warning light 8a is installed at a position where the illuminated light can be seen from the gap between the sill 5 of car 1 and the sill 6 of the platform. This is a warning light control device. A landing level detector 9 detects that the landing deviation is within a predetermined distance by facing a plate IO installed in the hoistway, and emits an output 10a.

FIG. 2 shows a warning light control device 8 that controls lighting of the warning light 8a.
20 is a block diagram in which a signal 3a for detecting the opening of the car door 3 and a signal 4a for detecting the opening of the landing door 4 are input, and when both are opened, a door opening detection signal 20a is generated. 22 is an oscillator that generates a pulse signal 22a of a predetermined frequency, and 24 is an inverter that generates an output 10a when the landing level detector 10 is not generating an output. 26 is an AND gate,
Door opening signal 20a, pulse signal 22a and inverter 2
4 is input, and the output side is connected to a current interface 28 for driving the warning light 8a.

Next, the operation of this embodiment will be explained.

Now, if the car is stopped in a state where the landing deviation of the car is more than a predetermined value, the landing level detector IO does not output the output 10a, so the inverter 24 continues to output the output.

On the other hand, when the car door 4 and the landing door 3 open, the door opening detector 20 outputs an output. Increase the width. As the warning light 8a flickers at the frequency of the pulse signal 22a, the light emitted from the flickering warning light 8a enters the passenger's eyes through the gap between the car and the landing threshold, and the passenger is alerted to the fact that the passenger is suffering from a misalignment. This prevents the risk of tripping when getting on and off the vehicle.

In addition, when the vehicle stops without any displacement of the floor, the landing level detector 10 emits the output 10a, so the inverter 24 does not output the output. Warning light 8 because it does not pass through
a is not lit.

In the above embodiment, the warning light 8a is provided below the sill 5 of the car 1, but a device that emits a warning sound may be attached to the car 1 and controlled in the same manner as the warning light 8a. In Figure 2, instead of the oscillator 22, an audio signal generator that emits a voice synthesized sound to warn passengers, such as "Watch your step!", is installed, and instead of a warning light, a speaker etc. is installed inside the car. However, the same effect as in the above embodiment can be obtained.

〔Effect of the invention〕

As described above, according to the present invention, when the elevator stops with a misaligned landing, the light of the warning light or the warning sound or synthesized warning sound is emitted from the gap between the car and the threshold of the landing. Because of this structure, it is possible to reliably notify passengers of the state of misalignment of the bed, and this has the effect of ensuring the safety of the passengers.

[Brief explanation of drawings]

FIG. 1 is a block diagram of an elevator safety device according to an embodiment of the present invention, and FIG. 2 is a block diagram of a warning light control device in FIG. 1. ■The basket, 2 is the landing, 3 is the cage door, 4 is the landing door, 5 is the cage threshold, 6 is the landing threshold, 7 is the robe, 8
is a warning light control device, and 8a is a warning light.

Claims (3)

[Claims] (1) In an elevator, an alarm is located below the threshold of the elevator car and, when the car stops at a service floor, emits lighting light or sound directly or indirectly from the gap between the landing threshold and the car threshold. An elevator safety device characterized by providing a means. (2) The elevator safety device according to claim 1, characterized in that the alarm means is operated only when the bed sore is more than a predetermined amount and when the door is open. (3) Elevator safety according to claim 1, characterized in that the car has a sounding means that emits an alarm sound by sound synthesis when the car stops due to the occurrence of bedsores of a predetermined amount or more. Device.