JPH06247676A - Safety device for passenger conveyor - Google Patents

Abstract

PURPOSE:To promote safety by preventing the mischief by a child to inlets of moving handrails. CONSTITUTION:A first light emitting section 12a and a first light receiving section 12b of a first passenger detecting device 12 are arranged face to face across a platform, and a second light emitting section 13a and the second light receiving section 13b of a second passenger detecting device 13 are arranged face to face across the platform below the first light emitting section 12a and the first light receiving section 12b. Safety switch sections 14 operated when the load having a prescribed value or above applied are provided on the floor section 2 near inlets 7 of moving handrails 4, and the safety switch sections 14 are operated when a passenger is detected by only the second passenger detection device 13.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a safety device for a passenger conveyor, and more particularly to a safety device for a passenger conveyor for preventing a child or the like from getting injured by inserting a hand into the entrance of a moving handrail. is there.

[0002]

2. Description of the Related Art FIG. 5 is a side view showing a conventional passenger conveyor safety device disclosed in, for example, Japanese Utility Model Laid-Open No. 2-99885. In the figure, 1 is a step, 2 is a floor of an entrance / exit, 3 is a balustrade standing on both sides of the step 1, 4 is a handrail which is provided on the balustrade 3 and moves in the direction of the arrow in the figure in synchronization with step 1. Reference numeral 5 is a first passenger detection device which is installed upright at the entrance / exit, and 6 is a second passenger detection device which is installed upright on the step 1 side of the first passenger detection device 5.

In the conventional passenger conveyor as described above, when a passenger tries to get in from a direction opposite to the traveling direction,
The passenger detecting device 5 detects the passenger and emits a first alarm sound, thereby calling attention. When the passenger further enters the step 1 side while ignoring the first alarm sound, the second passenger detection device 6 detects it and outputs a second alarm sound different from the first alarm sound.
A reminder is issued. Therefore, the passenger will be aware that he or she has been approached at least twice and with different timbres, and that he has made a reverse approach.

Further, in the conventional passenger conveyor, an HGS (hand guard switch) is provided at the entrance 7 of the moving handrail 4, and a hand or the like is inserted into the entrance 7 by mischief of a child, especially an infant. Then, the above HGS operates to stop the operation of the passenger conveyor.

[0005]

In the conventional passenger conveyor configured as described above, when the hand is inserted into the inlet 7 of the moving handrail 4, the operation of the passenger conveyor is stopped by HGS. Since it is impossible to prevent the child from playing with mischief in advance, there are many problems that the driver often stops driving after actually getting injured, resulting in insufficient safety.

The present invention has been made to solve the above-mentioned problems, and it is possible to prevent tampering with the entrance of a moving handrail in advance and improve safety. The purpose is to obtain a safety device for a passenger conveyor that can be used.

[0007]

In the safety device for a passenger conveyor according to the present invention, the first light emitting portion and the first light receiving portion of the first passenger detecting device are arranged so as to face each other across the entrance / exit. The second light emitting unit and the second passenger detection device of the second passenger detection device.
And a light-receiving part of the first light-emitting part and the first light-receiving part so as to face each other across the entrance and exit, and on the floor near the entrance of the moving handrail above the set value. A safety switch unit that operates when a load is applied is provided, and when the passenger is detected by only the second passenger detection device of the first and second passenger detection devices, the safety switch unit operates when the safety switch unit operates. It is a thing.

[0008]

According to the present invention, by setting the heights of the first and second passenger detecting devices appropriately, it is possible to detect the presence of a child at the entrance / exit, and the detected child detects the movement of the moving handrail. The safety switch detects the presence of the vicinity of the entrance, issues a warning to alert, and stops the operation of the passenger conveyor to prevent children from inserting their hands into the entrance.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. 1 is a front view showing an entrance / exit of a passenger conveyor having a safety device according to an embodiment of the present invention, FIG. 2 is a side view of the entrance / exit of FIG. 1, and FIG. 3 is a plan view of the entrance / exit of FIG. Figure 5
The same or corresponding parts are designated by the same reference numerals and the description thereof is omitted.

In the figure, 11a and 11b are detection device mounting members which are erected on both sides of the floor 2 with an entrance / exit in between.
Is a first passenger detection device that detects the presence of a passenger at the entrance / exit, and includes a first light emitting portion 12a attached to the detection device mounting member 11a and a first light emission portion attached to the detection device mounting member 11b. First light receiving portion 12 facing 12a
b. 13 is a second passenger detection device,
A second light emitting portion 13a attached below the first light emitting portion 12a of the detection device mounting member 11a and a second light emitting portion 13a attached below the first light receiving portion 12b of the detection device mounting member 11b. It has the 2nd light-receiving part 13b which opposes.

Further, in this embodiment, the first light emitting section 12
a and the first light receiving portion 12b are located at a height of 1.5 m from the floor portion 2, and the second light emitting portion 13a and the second light receiving portion 13 are located at a height of 1.5 m.
b is attached to a position at a height of 0.5 m from the floor 2. These heights are such that no passenger is detected by the first passenger detection device 12 and the second passenger detection device 13
It may be appropriately set so that it is possible to detect the presence of a child, particularly an infant, at the entrance / exit by detecting the passenger.

Reference numeral 14 is a safety switch portion provided on the floor portion 2 near the entrances (hand guards) 7 of the moving handrails 4 on both sides and actuated when a load of a set value or more is applied. 4 is shown in FIG.
FIG. 4 is a sectional view taken along the line IV-IV of FIG.
Reference numeral 15 is a mounting plate mounted on the floor 2 with bolts 16, 17 is a microswitch mounted on the mounting plate 15, and 18 is a tread plate mounted on the mounting plate 15 via a spring 19. The safety switch unit 14 is
It is composed of a mounting plate 15, a micro switch 17, a step plate 18 and a spring 19.

The tread plate 18 forms the same plane as the floor 2 when no person is riding on it, and, for example, when a person with a weight of 10 kg (set value) to 380 kg rides, the tread 18 is lowered against the spring 19. Then, the micro switch 17 is operated. Further, the mounting plate 15 and the bolt 16 have strength enough to exert their functions when the micro switch 17 operates.

The above-mentioned safety device is the second passenger detecting device 13 of the first and second passenger detecting devices 12 and 13.
When the micro switch 17 of the safety switch unit 14 is activated when a passenger is detected only by itself, an alarm (for example, a buzzer, an announcement, etc.) is issued, or the operation of the passenger conveyor is stopped.

Next, the operation will be described. When an infant is present at the entrance / exit of the passenger conveyor, the second passenger detection device 13 detects it as a passenger, but since the infant is short, it is placed at a higher place than the second passenger detection device 13. No passenger is detected by the first passenger detection device 12. At this time, when the infant is on the safety switch portion 14, the weight of the infant causes the tread 18 to move downward (sink) against the spring 19 and the micro switch 17 is operated. That is, it is detected that the infant has entered the dangerous area near the entrance 7, an alarm is issued, or the operation of the passenger conveyor is stopped.

Therefore, according to the safety device of this embodiment,
It is possible to prevent the infant from inserting his / her hand or the like into the insertion port 7 of the moving handrail 4, preventing injury to the hand or the like and improving safety.

In the above embodiment, the safety device is provided at the lower entrance / exit of the escalator, but it may be provided at the upper entrance / exit, or at the entrance / exit of a moving sidewalk. Further, in the above-described embodiment, as shown in FIG.
Although the safety switch unit 14 is provided at a distance from 1a and 11b, if the balustrade does not block the optical path, the safety switch unit 1
No. 1 and No. 2 at the same position as 4 (with respect to the left-right direction in FIG. 2)
The passenger detection devices 12 and 13 may be provided.

Further, the first and second passenger detection devices 1
The height of each of Nos. 2 and 13 and the set value of the load at which the safety switch unit 14 operates are not limited to those in the above embodiment.

[0019]

As described above, in the safety device for a passenger conveyor according to the present invention, the first light emitting portion and the first light receiving portion of the first passenger detecting device are opposed to each other with the entrance / exit being interposed therebetween. So that the second light emitting portion and the second light receiving portion of the second passenger detection device face each other below the first light emitting portion and the first light receiving portion with the entrance / exit being interposed therebetween. The second passenger detection device among the first and second passenger detection devices is provided with a safety switch part that is arranged and operates on the floor near the entrance of the moving handrail when a load greater than a set value is applied. When the passenger is detected at, the safety switch is activated so that it can be detected that the child is near the entrance of the moving handrail, and therefore the child can mischief against the entrance. Can be prevented and the safety can be improved. Achieve the cormorant effect.

[Brief description of drawings]

FIG. 1 is a front view showing an entrance / exit of a passenger conveyor having a safety device according to an embodiment of the present invention.

FIG. 2 is a side view of the entrance / exit of FIG.

3 is a plan view of the entrance / exit of FIG. 1. FIG.

4 is a sectional view taken along the line IV-IV of FIG.

FIG. 5 is a side view showing an example of a conventional safety device for a passenger conveyor.

[Explanation of symbols]

 2 floor part 4 moving handrail 7 entrance 12 first passenger detecting device 12a first light emitting part 12b first light receiving part 13 second passenger detecting device 13a second light emitting part 13b second light receiving part 14 safety Switch part

Claims (1)

[Claims] 1. A first passenger detecting device having a first light emitting portion and a first light receiving portion which face each other with an entrance / exit being interposed therebetween, and the first light emitting portion and the first light receiving portion. A second light emitting section and a second
A second passenger detection device having a light receiving part of the mobile handrail, and a safety switch part provided on the floor near the entrance of the moving handrail and operated when a load equal to or more than a set value is applied. And a safety device for a passenger conveyor, wherein when the passenger is detected only by the second passenger detecting device among the second passenger detecting devices, the safety switch unit is activated when the passenger is detected. .