JP3154788B2 - Entry and exit safety device for man conveyor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a safety device at the entrance of a man conveyor constructed as an escalator or a moving walkway.

[0002]

2. Description of the Related Art For example, in a man conveyor configured as an escalator, a large number of steps usually called endless steps are continuously provided in an endless manner, and these steps move between one entrance and exit of the other conveyor. Endless running in the formula, passengers get on one foot from the entrance on the tread that runs like this,
When the tread reaches the other entrance, the tread descends from above the tread.

FIGS. 4 to 7 show the structure of a part of such an escalator, in which reference numeral 1 denotes a foot, reference numeral 2 denotes a skirt guard panel, reference numeral 3 denotes a balustrade, reference numeral 4 denotes a doorway, and foot 1 is They are connected endlessly via a drive chain 5. The drive chain 5 is wrapped around a sprocket 7 driven by a motor 6, and the rotation of the sprocket 7 allows each of the treads 1 to run endlessly in a conveyer manner.
The moving handrail 8 provided on the outer periphery of the moving object 1 moves in synchronization with the tread 1.

A large number of cleats 1a are provided on the upper surface of each tread 1.
Are formed in parallel with each other, and a board 10 is provided at the entrance 4 of the escalator.
There is Ri attached preparative, comb 12 is Ri attached taken to the edge of the landing plate 10 through the comb attachment beam 11.

[0005] The comb 12 is formed in a comb shape having a number of comb teeth 12a at the tip, and each of the comb teeth 12a at the tip is a tread 1.
And functions to scoop up foreign matter on the tread 1 by being engaged with the cleat 1a.

[0006] By the way, usually, many passengers get down on the board 10 from the treadle 1 with their feet raised and straddling the comb 12, but in some cases carelessly or deliberately do not raise their feet. You may try to do so. In such a case, the footwear of the passenger is usually guided by the comb 12 to the boarding / alighting board 10 side to avoid danger, but sometimes the part of the passenger's footwear is the cleat 1a of the tread 1 and the comb teeth of the comb 12. There is a possibility that an unexpected danger may be caused by being caught between 12a.

Therefore, in general, the comb 12 is divided into a plurality of small pieces 12 'in the longitudinal direction on the left and right as shown in FIG. 7, and a thin portion 12b is formed at an intermediate portion of each small piece 12'. When the footwear of the passenger is sandwiched between the cleat 1a and the comb teeth 12a and an external force exceeding a certain level is applied to the comb 12, the small piece 12 'of the comb 12 is deformed or deformed through the thin portion 12b by the pressure. It is designed to break.

If the passenger immediately moves his / her foot from the top of the tread 1 to the board 10 after the small piece 12 'of the comb 12 is deformed or broken, danger can be avoided and the tread 1 can be safely secured. You can get off from above.

However, even after the comb 12 is deformed or broken, there is a case where the passenger neglects to move the foot from the top of the tread 1 to the side of the boarding / exiting plate 10. In such a case,
As the tread 1 advances, there is a danger that the footwear gets caught in the gap between the lower surface of the comb mounting beam 11 and the upper surface of the tread 1, causing injury.

As a measure for preventing such danger, Japanese Patent Application Laid-Open
- 150 987 No. as shown in Japanese, is provided a detection mechanism on the inside of the comb, when the foreign matter (passenger footwear) has entered the inside of the comb, so as to stop the operation of the passenger conveyor detects this Means have been proposed.

[0011]

However, even if the operation of the man conveyor is stopped by detecting the intrusion of foreign matter into the inside of the comb as described above, the traveling of the tread is stopped simultaneously with the detection. It is difficult to do so, in fact, the running of the tread advances to some extent due to the inertial force, so there is a risk that the footwear of the passenger may also be caught in the gap between the comb mounting beam and the tread, There are insufficient aspects of certainty. Note that the above-described points are the same in a moving sidewalk or the like configured by connecting a large number of steps.

The present invention has been made in view of such a point, and an object of the present invention is to prevent foreign matter such as footwear of a passenger from being caught in a gap between a comb mounting beam and a tread.
Prevent the Hare Do danger reliably to provide a door opening safety device of passenger conveyor capable of obtaining high safety.

[0013]

According to the present invention, in order to achieve the above-mentioned object, a plurality of treads are continuously connected in an endless manner, and these treads are provided between one entrance and the other entrance. traveling endlessly, with the running of踏体the comb attachment beams entrance in a passenger conveyor provided with comb to cleat engaged the upper surface of the踏体, to form an upper surface of the comb to the gentle slope shape In addition, a concave portion is formed in the middle portion, and a guide roller that is driven to rotate in a direction opposite to the running direction of the tread via a motor is provided, and the upper side of this guide roller is located substantially at the center of the concave portion of the comb. So that the lower side engages with the cleat.
It is arranged in.

[0014]

According to the above arrangement, when the passenger moves his / her foot from above the tread to the boarding / exiting board provided at the entrance / exit, the comb is thin.
Ku, since inclination is gradual or, co-just raise your toes
And can be easily guided to the boarding / leaving plate side by a guide roller which is always rotating upward. In addition, the guide roller is formed with the upper side on the top of the comb.
It is located almost at the center of the concave part, and the lower side is cleat
Since it is meshed and does not protrude greatly from the comb,
Stumbling on the guide roller or thickening the comb
Nothing to do.

[0015]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view showing an embodiment of the present invention, and FIG.
1 shows a cross-sectional view taken along line AA of FIG. The same parts as those of the above-described conventional device are denoted by the same reference numerals, and description thereof will be omitted.

As shown in FIGS. 1 and 2, a comb 21 is fixed to a comb mounting beam 11 with a screw 13 at an end of a board 10 provided at the entrance 4. This com 21 is the conventional com
12 is a comb tooth 21a having a height difference from the cleat 1a of the tread 1 as small as possible, and a thin portion positioned as low as possible.
21b, the upper surface is gently inclined, and the concave part is in the middle
An opening 21d is formed substantially at the center of the concave portion 21c so that a guide roller described later can project therefrom.

The guide roller 22, which is disposed so that its upper part protrudes from the opening 21d, is formed of an elastic material such as rubber, and is provided with an arm 23 mounted on the lower surface of the comb mounting beam 11.
, Which are supported substantially horizontally and rotatably, and provided on the peripheral surface with a plurality of collar rings 22a at the same pitch as the comb teeth 21a of the comb 21,
Upper side concave shaped portion of the comb 21, as described above in this loose rib 22a
The lower side protrudes from 21c and meshes with the cleat 1a of the tread 1 to prevent foreign matter from being caught. Further, a motor 24 is connected to the guide roller 22 via a shaft 22b, and is driven to rotate along the running direction of the tread plate 1. here,
The rotation of the tread plate 1 in the direction opposite to the running direction means that the guide roller 22
The lower side is opposite to the running direction of the tread plate 1, and the upper side is in the same direction, and rotates the comb teeth 21a side of the comb 21 of the guide roller 22 upward.

Next, the operation of the embodiment configured as described above will be described with reference to FIG. When the tread 1 travels, the guide roller 22 is rotated at a constant speed via the motor 24. Since the comb teeth 21a are inclined so that the height of the comb teeth 21a is smaller than that of the cleat 1a of the tread 1, the passenger footwear 25 is scooped up on the comb 21 and the cleat 1 of the tread 1 is lifted.
a and the comb teeth 21a of the comb 21 are less likely to be caught. Also,
Even if the passenger neglects to move the foot from the top of the tread 1 to the side of the board 10, the footwear 25 of the passenger hits the guide roller 22, and the space between the lower surface of the comb mounting beam 11 and the upper surface of the tread 1. Of the guide roller is prevented from entering the gap.
22 since being driven by the motor 25 is rotating the comb teeth 21a side upward, the footwear 25 is scooped up upward, further
Is guided to the board 10 side. Therefore, the danger that the footwear 25 of the passenger gets caught in the gap between the comb mounting beam 11 and the foot 1 is reliably prevented. Since the guide roller 22 is formed of an elastic material, the impact when the passenger's footwear 25 hits the guide roller 22 is also reduced.

On the other hand, in the case where foreign matter such as pebbles intervenes on the tread 1 in a normal state, the comb teeth 21 a of the comb 21 and the collar ring 22 a of the guide roller 22 are doubled on the cleat 1 a of the tread 1. Therefore, the foreign matter is reliably scooped up and removed by the comb teeth 21a and the collar ring 22a. Guide roller 22
The upper side is located inside the concave portion 21c of the comb 21, and the lower side is closed.
Since it is provided so as to be located in the REIT 1a,
Or protrude from the top of the
You don't have to. For this reason, passengers
It is unlikely that the top surface of Com 21 will be gentle
To reduce the effect of scooping passengers
Not even.

In the embodiment described above, the present invention is applied to an escalator.
It is needless to say that the present invention can be similarly applied to a moving sidewalk constructed and installed .

[0021]

According to the present invention as described in the foregoing, to form a top surface of the comb attached to Ri taken to comb mounting plate of the door opening in the relaxed Kana inclined <br/> shape, a concave portion at its intermediate portion Forming
A guide roller which is driven to rotate in the direction of travel in the opposite direction of踏体through the motor is provided, protruding upper side of the guide roller in a substantially central portion of the concave portion of the comb, and the cleat of the lower side
Because it is engaged, the footwear of the passenger who rides on the tread is hard to be caught between the cleat of the tread and the comb teeth of the comb, and the passenger puts the foot from the tread on the side of the board Even if the moving operation is neglected, the passenger's footwear is blocked by the guide rollers, thereby preventing the footwear from entering into the gap between the lower surface of the comb mounting beam and the upper surface of the tread. Footwear is picked up by the rotation of the roller,
A danger that passengers' footwear is caught in the gap between the comb attachment beam and the tread is reliably avoided, and a safety device for a passenger conveyor with improved safety can be provided.

[Brief description of the drawings]

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

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is an explanatory diagram showing the operation of one embodiment of the present invention.

FIG. 4 is a perspective view of an entrance / exit portion of a conventional general escalator.

FIG. 5 is a cross-sectional view of the entrance / exit portion shown in FIG.

FIG. 6 is an enlarged sectional view of a part of FIG. 4;

FIG. 7 is a partial plan view seen in the direction of arrow B in FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Tread, 1a ... Cleat, 4 ... Entry / exit, 10 ... Entry / exit board,
11: Comb mounting beam, 21: Comb, 21a: Comb teeth, 21c: Recess,
21d: opening, 22: guide roller, 24: motor.

Claims (1)

(57) [Claims] 1. A plurality of踏体is provided continuously in an endless, these踏体travels between one entrance and the other entrance endlessly, said the comb attachment beam of the entrance In a man conveyor provided with a comb that meshes with the cleat on the upper surface of the tread as the tread travels, the upper surface of the comb is formed with a gentle slope , and a concave portion is provided at an intermediate portion thereof. Forming
Through the motor provided with a guide roller which is driven to rotate in a direction opposite to the running direction of the踏体, projecting the upper side of the guide roller in a substantially central portion of the concave portion of the comb, prior to the lower side
An entrance / exit safety device for a man conveyor, which is disposed so as to mesh with the cleat .