JPH07257868A - Safety device of man conveyor - Google Patents

Abstract

PURPOSE:To prevent a finger etc., which has intruded into a gap between the inlet to a safety device of a man conveyor and a moving handrail, from further intrusion without pressing the finger strongly, and preclude undeliberate actuation of the conveyor operation when an external force is applied. CONSTITUTION:A rod-shaped protector piece 12A protruding at the front face of a protecting body 12, which constitutes a safety device, is provided in the direction opposite the advancing direction of a moving handrail 4 situated ahead of the protecting body 12, and a guard plate 14 covering the projection on the piece 12A is furnished at least on the outside of each side of the piece 12A. The piece 12A does not press the finger etc. intruding, prevents a further intrusion, and hinders influence of any external force acting on the safety device by the use of the guard plate 14.

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 such as an escalator or an electric road, and more particularly to a safety device for a passenger conveyor having a protective body at the entrance of a moving handrail.

[0002]

2. Description of the Related Art Generally, a passenger conveyor is constructed so that the outward side of a circulating handrail is guided along the periphery of the balustrade and the return side enters the inside of the lower part of the balustrade. A safety device is provided at the entrance of the moving handrail below the balustrade.

As a conventional technique relating to such a safety device for a passenger conveyor, for example, a technique disclosed in Japanese Patent Laid-Open No. 51-42278 is known.

This prior art relates to a safety device having a protective body for supporting a part of the safety device via a spring, and the hand of an infant is provided through a gap between the peripheral edge of the moving handrail and the protective body provided at the entrance thereof. When an intruder or the like intrudes, the operation of the passenger conveyor is stopped and the intruded hand is released.

[0005]

In the prior art described above, a part of the safety device is supported via a spring, and the spring is deformed so that the front of the safety device sinks. Once the hand or the like enters the gap between the handrail and the safety device, the spring is deformed, and the hand or the like is easily inserted by widening the gap. For this reason, the prior art is not actually applied to passenger conveyors. In addition, the conventional technology is also vulnerable to malfunction due to contact with a moving object (for example, a stroller) on the floor where the passenger conveyor is installed.

An object of the present invention is to prevent a finger or the like accidentally invading from being strongly pressed into the gap between the entrance of the safety device and the moving handrail, and to prevent further intrusion while the finger or the like is promptly pushed. Another object of the present invention is to provide a safety device for a passenger conveyor that can be pulled out and is less likely to malfunction due to external force.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a protector provided at the entrance of a moving handrail that circulates, and passengers when the protector is displaced in the traveling direction of the handrail. In the passenger conveyor provided with a means for stopping the operation of the conveyor, on the front surface of the protective body, along the outer periphery of the moving handrail, a plurality of rod-shaped protective pieces protruding long in the direction opposite to the traveling direction, the protection is provided. A guard plate fixed to the base of the balustrade is provided at least on the outer side of the passenger conveyor among both sides of the piece.

[0008]

As described above, according to the present invention, since a plurality of glove-shaped protectors projecting in front of the protector are provided, for example, when a hand or the like intrudes into the protector, the stick-shaped protector pieces are separated from each other. There will be no gap between them and the protective pieces will not come apart, so that the intruder such as a hand is not strongly pressed against the moving handrail. In addition, there are guard plates on the outside of the passenger conveyor (which is an open space opposite to the step side, which makes it easy for infants to mischief) on the outside of the passenger conveyor where people often pinch their hands, etc.
In the worst case, if the protective piece comes into contact with the guard plate when the arm is thicker than the hand, further deformation (opening) is prevented at the position where the protective plate comes into contact with the guard plate. In addition, the guard plate protects the passengers and strollers passing by on the floor outside the passenger conveyor, and protects the operation of the safety device, which prevents passengers from falling due to sudden stop of the passenger conveyor. be able to.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a passenger conveyor safety device according to the present invention will now be described in detail with reference to the drawings.

FIG. 1 is a side view of an embodiment of the present invention showing a mounting state of a safety device, FIG. 2 is a partially cutaway perspective view showing a structure of the present invention showing a mounting state of a safety device, and FIG. Of I
It is sectional drawing which follows the -I line. 1 to 3,
1 is a step, 2 is an entrance / exit, 3 is a balustrade, 4 is a handrail, 5
Is a balustrade panel, 6 is a handrail frame, 7 and 8 are deck covers, 9 is a skirt guard, 10 is a safety device, 11 is a mounting bracket, 12 is a protective body, 12A is a protective piece, 13 is an exterior plate, and 14 is a guard. The plate 14a is a screw.

As shown in FIG. 1, a passenger conveyor to which the present invention is applied, such as an escalator, is provided at both ends of a step 1 which is endlessly connected and rotates, and at which both steps of the step 1 rotate. The passenger opening 2, the balustrade 3 which is erected along both sides of the rotating step 1, the moving handrail 4 which moves the periphery of the balustrade 3 in synchronization with the step 1, and is installed to support these. And a frame (not shown).

The balustrade 3 is installed on the balustrade panel 5 which is supported by the frame body, and the handrail frame 6 which is attached to the periphery of the balustrade panel 5 to guide the moving handrail 4 and to the frame body of the balustrade panel 5. It is provided with inner and outer deck covers 7 and 8 and a skirt guard 9 which cover the supporting portions of the.

As shown in FIG. 2, a safety device 10 is installed at the entrance of the moving handrail 4 of the skirt guard 9, and the safety device 10 stops the operation of the mounting bracket 11, the micro switch and the like. A box-shaped protector 12 having an opening for covering the outer circumference of the moving handrail 4 is provided, which is made of synthetic rubber, resin or the like having a means (not shown) built therein.

As shown in FIGS. 2 and 3, the protector 12 projects along the outer periphery of the moving handrail 4 with a gap G ₁ between it and the moving handrail 4 and a long projection in the direction opposite to the moving direction. A plurality of rod-shaped protection pieces 12A are provided. The protective piece 12A is made of an elastic body that is integral with the protective body 12 and is formed in a glove shape.
Are separated from each other. Also, protector 1
On the outer side of 0 (on the side opposite to the step 1), the length dimension fixed to the exterior plate 13 with the screw 14a and extending to the tip of the protective piece 12A and the thickness dimension h ₁ of the protective piece 12A are substantially the same height. A guard plate 14 having a shape having a flat dimension h ₂ is provided. Then, when it penetrates further into the gap G ₁ on the outer side of the protective body 12 from the hand to the arm and is deformed as shown by the imaginary line F in FIG. 3, the guard plate 14 is contacted (contact point K in FIG. 3), and The above deformation is prevented. On the other hand, since the guard plate 14 is attached so as to prevent a moving object on the floor from coming into contact with the protective piece 12A, the trouble of stopping the passenger conveyor due to an unnecessary operation is prevented. Further, the guard plate 14 has a function of protecting the protection piece 12A from being caught by the infant even when the hand is put out, and since it is a visible material, it is convenient for visual inspection of the safety device 10. .

In the above description, the example in which the guard plate 14 is arranged only on the outer side of the protective body 12A has been shown, but the present invention is not limited to this, and it is provided on the step 1 side which is the inner side of the protective body 12A. It may be one.

[0016]

According to the present invention, the finger or the like that has entered the gap between the entrance of the safety device and the moving handrail is not pressed, and further intrusion can be prevented while the finger or the like can be quickly withdrawn. It is possible to provide a safety device for a passenger conveyor that is less likely to malfunction due to external force.

[Brief description of drawings]

FIG. 1 is a side view of an embodiment of the present invention.

FIG. 2 is a perspective view showing the configuration of an embodiment of the present invention.

3 is a cross-sectional view taken along the line I-I of FIG.

[Explanation of symbols]

4 ... Moving handrail, 5 ... Parapet panel, 6 ... Handrail frame, 7, 8 ... Deck cover, 9 ... Skirt guard, 10
... Safety device, 12 ... Protective body, 12A ... Protective piece, 13 ... Exterior plate, 14 ... Guard plate, 14a ... Screw.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yukiko Sudo 4-6 Kanda Surugadai, Chiyoda-ku, Tokyo Hitachi, Ltd.

Claims (3)

[Claims] 1. A protective body provided at an entrance where a circulating moving handrail penetrates into the balustrade, and means for stopping the passenger conveyor when the moving handrail is displaced in the traveling direction. In the passenger conveyor, on the front surface of the protective body, along the outer periphery of the moving handrail, a plurality of rod-shaped protective pieces that project long in the opposite direction to the traveling direction are provided, and among the both side portions of the rod-shaped protective piece, A passenger conveyor safety device comprising a guard plate fixed to the base of the balustrade outside the passenger conveyor. 2. The guard plate according to claim 1, wherein the guard plate covers the outer periphery of the moving handrail, has a height dimension substantially similar to the overall thickness dimension of the protection piece, and A safety device for a passenger conveyor having a protrusion size that is substantially the same as the protrusion size. 3. The passenger conveyor safety device according to claim 1, wherein the guard plate is made of a visible synthetic resin.