JPS63212688A - Safety device for elevator door - 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] [Purpose of the invention] (Industrial application field) This invention relates to a safety device for elevator doors.

(Prior art) In general, in elevator door safety devices, a safety shoe is attached to the elevator door, and when a passenger gets on board and touches the safety shoe when the door is closed, a detection switch is activated and the elevator door reopens. This prevents passengers from getting stuck in the door.

(Problem to be solved by the invention) However, in such conventional elevator door safety devices, the safety shoe is finished in a dark color such as black that makes it less noticeable, so passengers getting on and off the elevator do not notice the safety shoe. The problem is that people often get in and out of the vehicle while looking only at the opening/closing door, and often come into contact with the safety shoe.

This invention was made to solve such conventional problems, and an object thereof is to provide an elevator door d.

[Structure of the Invention] (Means for Solving the Problems) The safety device for the elevator door of the present invention is designed to prevent the movement of elevators! A stop detection circuit that detects an IJ stop, a lighting circuit that issues a lighting signal when the stop detection circuit stops, and a light source that is provided in a safety shoe of an elevator door and is turned on by lighting No. 46 of the lighting circuit. It consists of

(Function) In the elevator door safety device of the present invention, when the elevator stops moving, the lighting circuit turns on the light source, illuminating the safety shoe from the inside to make it stand out, and making passengers aware of the presence of the safety shoe. Can be done.

(Example) Hereinafter, an example of the present invention will be explained in detail based on the drawings. 1st
The figure shows one embodiment of the invention.

The elevator 1 has its raising and lowering operations controlled by a control circuit not shown in the figure. A safety shoe 3 is attached to the tip of the door 2 of the elevator 1.

As shown in FIG. 2, the safety tissue 3 is comprised of a base 4 attached to the door 2, and a safety tissue main body 5 detachably attached to the base 4. The safety tissue main body 5 is made of a light-transmitting material, such as translucent plastic such as milky white acrylic, transparent or translucent rubber, or other materials as appropriate.

Inside the safety tissue body 5, lamps 6 are provided as light sources at a plurality of locations above and below the base 4.

This lamp 6 is connected to a lighting circuit 7 by a cable 8. As shown in FIG. 2, this cable 8 is protected by a spline-shaped spring 9 so as to withstand bending caused by frequent door opening and closing operations.

The lighting circuit 7 includes a simultaneous blinking circuit 10 made of, for example, a timer circuit or a flip-flop circuit, and a sequential blinking circuit 11 made of, for example, a transistor relay circuit or a flip-flop circuit, and causes a plurality of lamps 6 to blink all at once or a plurality of lamps 6 can be made to blink sequentially from top to bottom or conversely from bottom to top to indicate the moving direction of the elevator 1.

A stop detection circuit 12 is connected to this lighting circuit 7. This stop detection circuit 12 includes a movement direction detection circuit 13 that detects the vertical movement direction of the elevator 1, and an open n detection circuit 14 that detects 1 m rJl 113 operation of the elevator door 2.

This stop detection circuit 12 detects the stop of the ascending and descending operation of the elevator 1, and provides a stop detection signal ST to the lighting circuit 7.

The moving direction detection circuit 13 detects whether the elevator 1 is on the way up or on the way down, and outputs a rising signal UP,
Or output the falling signal DN.

The opening/closing detection circuit 14 outputs an opening operation signal OP when the elevator door 2 starts the opening operation, and gives a closing operation signal CL to the lighting circuit 7 when the elevator door 2 starts the m operation.

The operation of the elevator door safety device configured as described above will be explained next.

When the elevator 1 is currently in an ascending operation and stops at a predetermined floor, the stop detection circuit 12 detects the stop of the elevator 1 and outputs a stop signal ST, and the moving direction detection circuit 1
3 outputs a LIP signal indicating that it is in the process of rising. Then, when the door starts to open, the opening/closing detection circuit 14 outputs the door opening operation signal OP.

These detection signals cause the sequential blinking circuit 1 of the lighting circuit 7 to
1, the opening/closing detection circuit 14 starts blinking the lamp 6 in the safety shoe 3 sequentially from bottom to top until the door 2 is fully opened, indicating that the vehicle is going upward, and notifying passengers getting on and off the vehicle.

When the passenger finishes getting on and off the vehicle and the door 2 begins to close, the opening/closing detection circuit 14 outputs a closing operation signal CL. Therefore,
The lighting circuit 7 causes all of the lamps 6 to blink at once using the - simultaneous blinking circuit 10 to notify passengers getting on and off that the door 2 has begun to close, and to warn them not to be pinched by the safety shoe 3.

When the door 2 is fully opened, the opening operation signal OL is stopped, the operation of the lighting circuit 7 is stopped, and the lamp 6 is turned off.

Conversely, when the elevator 1 is in a descending motion and stops at a predetermined floor, the moving direction detection circuit 13 outputs a DN signal indicating that it is in the process of descending, and the stop detection circuit 12 outputs a stop signal 5T. Output. Then, when the door 2 starts to open, the opening/closing detection circuit 14 outputs the opening operation signal OP.

Upon receiving these signals, the sequential blinking circuit 11 of the lighting circuit 7
The lamp 6 is made to blink sequentially from top to bottom until the door 2 is fully opened to inform passengers that the elevator 1 is going downward.

When the door 2 begins to close, the opening/closing detection circuit 14 applies a closing operation signal CL to the flashing circuit 10 of the lighting circuit 7 until the door 2 is fully closed, causing all of the lamps 6 to flash at the same time. 3. Warn passengers getting on and off the train to avoid being pinched.

In this way, in the elevator door safety device of the above embodiment, during the opening/closing operation of the door 2 of the elevator 1, the lamp 6 of the safety shoe 3 can notify passengers of the moving direction of the elevator, and It is also possible to brightly illuminate the safety shoe 3 of the door 2, which has begun to jam, to alert passengers so that they do not get caught.

FIG. 3 shows another embodiment of the invention.

In this embodiment, a light emitting diode 15 is used as a light source in place of the lamp 6 of the first embodiment, and is attached to the safety shoe 3 so as to be vertically aligned.

In the case of the second embodiment using this light emitting diode 15, a plurality of types of light emitting diodes with different light emitting colors such as red and green are used, and the door 2
When closing, for example, red light emitting diodes flash all at once to attract attention, and to indicate the direction of movement, for example, green light emitting diodes flash sequentially from bottom to top or from top to bottom. It can be done.

In the case of the second embodiment, a red light emitting diode is connected to the simultaneous flashing circuit 10 in the lighting circuit 7, and a green light emitting diode is connected to the sequential flashing circuit 11, so that the circuit can be easily assembled.

FIG. 4 shows another embodiment of the invention.

In this embodiment, an optical fiber 16 is used instead of the lamp 6 as a light source, and the safety tissue 3 is divided into a plurality of light emitting sections 17, and each light emitting section 17 is connected to the safety tissue 3.
They are arranged one above the other.

In this embodiment as well, by distributing the flashing light from the lighting circuit 7 to the light emitting parts 17 sequentially from the bottom to the top or from the top to the bottom using the optical fiber 16, the direction of movement is instructed in the same way as in the first embodiment. By blinking, it is possible to notify that the door 2 is closed.

In each of the above-mentioned embodiments, the light source also performs a moving direction instruction operation in which the light source sequentially blinks from top to bottom or from bottom to top by the sequential blinking circuit 11 of the lighting circuit 7. The present invention is not limited to each embodiment, and the light sources may simply turn on or flash all at once to brightly illuminate the safety shoe when the door is closed.

[Effects of the Invention] As described above, according to the present invention, since a light source is provided in the safety shoe of the elevator door and brightly illuminates the safety shoe when the elevator is stopped, the safety shoe is easily visible and the door is not closed easily. This reduces the chances of passengers getting on and off the cliff without noticing the setefish and getting caught by the setefish. Therefore, when a passenger touches the safety shoe, the detection switch is activated, making it possible to avoid frequent reopening of the door and reduce the probability of failure.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of one embodiment of the present invention, FIG. 2 is an enlarged explanatory diagram showing a part of the safety tissue of the above embodiment, and FIG. 3 is an enlarged explanatory diagram of a part of the safety tissue of another embodiment of the invention. , FIG. 4 is an enlarged explanatory view of a portion of a safety tissue according to another embodiment of the present invention. 1... Elevator 2... Door 3... Safety shoe 6... Lamp 7... Lighting circuit 10... - Simultaneous blinking circuit 11... Sequential blinking circuit 12... Stop detection circuit 13 ...Moving direction detection circuit 14...Open□Closed detection circuit 15...Light emitting diode 16...Optical fiber 17...Light emitting part

Claims (2)

[Claims] (1) A stop detection circuit that detects when the elevator has stopped moving, a lighting circuit that outputs a lighting signal based on the signal from this stop detection circuit, and a light source that is installed in the safety shoe of the elevator door and is lit by this lighting circuit. Elevator door safety device. (2) A plurality of the light sources are provided above and below within the safety shoe of the elevator door, and the stop detection circuit includes a moving direction detection circuit that detects the moving direction of the elevator, and an opening/closing detection circuit that detects the opening/closing operation of the door. The lighting circuit includes a sequential blinking circuit that sequentially blinks the light source from bottom to top or from top to bottom in response to an opening operation signal from the opening/closing detection circuit and a movement direction instruction signal from the movement direction detection circuit; 2. The safety device for an elevator door according to claim 1, further comprising a flashing circuit that flashes the light sources all at once in response to a closing operation signal from an opening/closing detection circuit.