JPH06135671A - Safety device for passenger conveyor - Google Patents

Abstract

PURPOSE:To suppress the maloperation by preventing the intrusion of a foreign material, without strongly pressing the intrusion articles such as fingers which intrude between the inlet of a safety device and a shiftable handrail. CONSTITUTION:In front of a protecting body 12 which constitutes a safety device, i.e., in the opposite direction to the advance direction of a shiftable handrail 4, a rod-shaped protecting piece 12A which projects from the front surface of the protecting body is installed. The interval of the protecting pieces 12A is maintained at a part in the longitudinal direction by an interval maintaining means (connection part or string shaped body and an interval piece). The protecting piece 12A can be shifted outside, when fingers, etc., intrude, and the intrusion over the extent can be prevented without strongly pressing fingers, etc. Further, since the interval of the protecting pieces 12A is kept by the interval maintaining means, the trouble that a conveyor dangles because of the deterioration through the lapse of years and contacts the shiftable handrail 4 and the safety device is operated in spite of the fact that no foreign material intrudes can be prevented.

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.
The present invention relates 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 passenger conveyor safety device, 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 protector 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 protector provided at the entrance thereof. When a vehicle invades, the operation of the passenger conveyor is stopped and the invaded hands are 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 gap is further widened so that the hand or the like easily enters. For this reason, the above-mentioned prior art is not actually applied to passenger conveyors.

The object of the present invention is to solve the above-mentioned problems of the prior art, prevent the operator from inadvertently pressing a finger or the like that has accidentally entered the gap between the entrance of the safety device and the moving handrail, and
A further object of the present invention is to provide a safety device for a passenger conveyor which can prevent further intrusion and promptly pull out a hand or the like with less malfunction.

[0007]

According to the present invention, the above object is to provide a protective member provided at the entrance of a circulating moving handrail, and a passenger when the protective member displaces in the traveling direction of the moving handrail. In the passenger conveyor having means for stopping the operation of the conveyor, the protective body is provided with a plurality of rod-shaped protective pieces facing the outer periphery of the moving handrail and protruding in a direction opposite to the traveling direction thereof, and This is achieved by providing a space maintaining means for maintaining the space between the plurality of protective pieces in a part of its longitudinal direction.

[0008]

As described above, according to the present invention, since the rod-shaped protective piece protruding forward of the protective body is provided, for example, when a finger or the like intrudes into the protective body, a gap is generated between the rod-shaped protective pieces. The protective pieces do not come apart, and the intruder such as a finger is not strongly pressed against the moving handrail.Also, the protective piece is maintained at a part of its longitudinal direction by the space maintaining means. Therefore, it is possible to prevent a problem in which the protective piece itself comes into contact with the moving handrail due to aging or is deformed to cause the detecting means to operate erroneously.

[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, and FIG. 2 is a partially cutaway perspective view showing a structure of an embodiment of the present invention showing a mounting state of a safety device. Three
2 is a sectional view taken along the line II of FIG. 2, and FIG. 4 is a sectional view taken along the line II-II of FIG. 1 to 4, 1 is a tread,
2 is an entrance / exit, 3 is a balustrade, 4 is a handrail, 5 is a balustrade panel, 6 is a handrail frame, 7 is an inner deck cover, 8 is an outer deck cover, 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, 1
2B is a connecting portion.

As shown in FIG. 1, a passenger conveyor to which the present invention is applied, such as an escalator, is provided at both end portions in the traveling direction of a tread plate 1 which is connected endlessly and rotates. And an entrance / exit 2, a balustrade 3 standing upright on both sides of the rotating tread 1, a handrail 4 that moves the periphery of the balustrade 3 in synchronism with the tread 1, and a supporting handrail for them. And a frame body (not shown) to be formed.

The balustrade 3 is provided with the balustrade panel 5 which is supported by the frame body and stands upright, a handrail frame 6 which is attached to the periphery of the balustrade panel 5 and guides the moving handrail 4, and the balustrade panel. 5, an inner deck cover 7 that covers the supporting portion of the frame body 5 to the frame body, an outer deck cover 8, and a skirt guard 9.

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 operates the mounting bracket 11, the micro switch, and the like. It is provided with a box-shaped protector 12 which is formed of synthetic rubber, resin or the like having a built-in stopping means (not shown) and which has an opening for covering the outer periphery of the moving handrail 4.

As shown in FIGS. 3 and 4, the protector 12 projects along the outer periphery of the moving handrail 4 while maintaining a gap G ₁ with the moving handrail 4 and in a direction opposite to the traveling direction thereof. A plurality of rod-shaped protection pieces 12A are provided. The protective piece 12A is formed integrally with the protective body 12 by an elastic body and is integrally formed so as not to separate from each other in a part of its longitudinal direction, and is a connection for maintaining a space between the protective pieces 12A. The parts 12B are connected to each other.

In one embodiment of the present invention constructed as described above, the protective piece 12A is deformed such that the front part thereof is separated from the moving handrail 4 from the connecting part 12B when a finger or the like enters the protective piece 12A. , The gap G between the protection pieces 12A opens in the directions shown by the arrows S ₁ and S _{2, and} when a finger or the like further invades, the connecting portion 12B expands due to the elasticity of the material, The gap G between the protection pieces 12A extends.

Therefore, the safety device according to the embodiment of the present invention described above does not press the intruding finger or the like,
In addition, since the protection piece 12A is connected by the connecting portion 12B, the protection piece 12A deteriorates over time and hangs down.
It is possible to prevent a problem that the moving handrail 4 is brought into contact with the moving handrail 4 to operate (stop the operation) even if no foreign matter has entered.

In the above-described embodiment of the present invention, the connecting portion 12B connects the protective pieces 12A together, but the present invention separates the connecting portion 12B from the protective piece 12A. It is also possible to connect with an adhesive or the like.

The embodiment of the present invention described above is the same as the protective piece 12.
Although the sectional shape of A is circular, the sectional shape of the protective piece 12A may be any shape.

5 and 6 are sectional views taken along the line II-II of FIG. 2 showing another example of the shape of the protective piece 12A.

In the example shown in FIG. 5, the protective piece 12A has a trapezoidal cross section, and the trapezoidal shapes of the adjacent protective pieces are opposite to each other and are arranged along the outer periphery of the moving handrail 4. In the figure, the cross-sectional shape of the protective piece 12A is trapezoidal.
It may be prismatic. Moreover, the example shown in FIG.
2A has a plate-shaped cross section and is arranged around the moving handrail 4 so that adjacent protective pieces overlap each other.

FIG. 7 is a diagram showing another structural example for maintaining the distance between the protective pieces. In FIG. 7, 12D is a cord-like body, 1
2F is a spacing piece, and other symbols are the same as in the case of FIG. In the embodiment of the present invention described above, the adjacent protective pieces 12A are integrally formed with the connecting portion 12B, but the present invention can be configured as shown in FIG. 7.

That is, in FIG. 7, the adjacent protective pieces 12A are not integrated but independent of each other. A through hole 12C is formed in each of the protective pieces 12A, and a string-shaped body 12D penetrates through the through hole. The end portion of the string-shaped body 12D is provided with an engaging portion 12E so that the string-shaped body 12D does not drop out from the through hole 12C of the protection piece 12A located at the end portion.

In the example shown in FIG. 7, in order to maintain the space G between the adjacent protective pieces 12A, the space knitting 12F is used.
Is constituted by being directed by the string-shaped body 12D between the protection pieces 12A. The string-shaped body 12D may be formed of, for example, a metal or fiber thin wire, a chain, an elastically deformable member such as rubber, or the like. The spacing piece 12F may be formed integrally with the protection piece 12A.

With such a structure, the same effect as that of the above-described embodiment of the present invention can be obtained.

With the examples shown in FIGS. 5 to 7 described above, the same effect as that of the embodiment of the present invention described with reference to FIGS. 1 to 4 can be obtained. Furthermore, in these cases, since the moving handrail 4 cannot be seen from the outside, it is convenient because an infant or the like is not interested in the movement of the moving handrail 4.

[0026]

As described above, according to the present invention, it is possible to prevent further intrusion without strongly pressing the fingers or the like invading the gap between the entrance of the safety device and the moving handrail. It is possible to provide a safety device for a passenger conveyor with few malfunctions.

[Brief description of 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 configuration of an embodiment of the present invention showing a mounting state of a safety device.

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

FIG. 4 is a sectional view taken along line II-II in FIG.

5 is a cross-sectional view taken along line II-II of FIG. 2 showing another example of the shape of the protective piece.

FIG. 6 shows another example of the shape of the protective piece, II- in FIG.
It is sectional drawing which follows the II line.

FIG. 7 is a diagram showing another configuration example for maintaining the distance between the protective pieces.

[Explanation of symbols]

 1 Footboard 2 Entrance / exit 3 Parapet 4 Moving handrail 5 Railing panel 6 Handrail frame 7 Inner deck cover 8 Outer deck cover 9 Skirt guard 10 Safety device 11 Mounting bracket 12 Protective body 12A Protective piece 12B Connecting part

Claims (6)

[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 provided, on the front surface of the protective body, along the outer periphery of the moving handrail, provided with a plurality of protective pieces protruding in the opposite direction to the traveling direction, the interval for maintaining the interval of the plurality of protective pieces A safety device for a passenger conveyor, characterized in that a maintaining means is provided in a part of its longitudinal direction. 2. The safety device for the passenger conveyor according to claim 1, wherein the plurality of protection pieces are connected to each other. 3. The safety of the passenger conveyor according to claim 1, wherein the plurality of protective pieces are provided on a front surface of the protective body and are formed integrally with the protective body by an elastic body. apparatus. 4. The protective pieces are arranged along the outer periphery of the moving handrail so that the surface of the moving handrail cannot be seen from the periphery of the plurality of protective pieces. Safety device for passenger conveyors described. 5. The safety device for a passenger conveyor according to claim 1, wherein each of the plurality of protection pieces is formed of a rod-shaped body or a plate-shaped body. 6. The passenger conveyor safety device according to claim 1, wherein the plurality of protective pieces are connected to each other by separate connecting means.