JP4167499B2 - Passenger conveyor entrance safety device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a safety device that is provided at a passenger entrance of a passenger conveyor such as an escalator and detects that a passenger's shoes are caught.
[0002]
[Prior art]
In the conventional entrance / exit safety device for passenger conveyors, when the passenger's foot is caught between the comb and the step, the comb plate rotates upward, the detection lever activates the detection switch, and immediately stops the passenger conveyor. I try to let them. (For example, see Patent Document 1)
[0003]
[Patent Document 1]
JP-A-11-171457 (paragraph numbers 0012 to 0015, FIGS. 2 and 5)
[0004]
[Problems to be solved by the invention]
In the conventional conveyor entrance / exit safety device as described above, since the passenger conveyor is stopped by detecting that a passenger's shoes, clothes, etc. have been caught, it is possible to detect that an abnormality has occurred. When clothing or the like has been pulled into the back, it may be difficult for the passenger to pull it out by himself. In this case, it is necessary to use a tool for removing the comb, and it is necessary to wait while being pinched until the rescuer arrives.
[0005]
Also, if the shoes or clothes that are pinched out are forcibly pulled out, the comb may be damaged, and it is necessary to arrange for a replacement for the comb and restore it. Will be shortened. In addition, the need for a new comb is not economical.
[0006]
The present invention has been made to solve the above-mentioned problems, and provides a passenger conveyor entrance safety device that can easily separate and separate combs when a passenger's shoes, clothing, etc. are sandwiched between them. The purpose is to do.
[0007]
[Means for Solving the Problems]
A passenger conveyor entrance / exit safety device according to the present invention is provided with a detector provided at an end portion of a floor board disposed at an entrance / exit, for detecting that a comb plate to which a comb is attached is displaced upward, An adsorbent element is provided on the comb plate and an adsorbing element is provided on the comb plate, and the adsorbing element is adsorbed by constantly energizing the adsorbing element by the control device. When the detector detects the displacement of the comb plate, The adsorption force to the adsorber is released.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Embodiment 1 FIG.
1 and 2 are diagrams showing an embodiment of the first and second inventions of the present invention. FIG. 1 is a side view of a passenger conveyor entrance and exit. FIG. 2 is an enlarged view of a portion II in FIG. In the figure, the same reference numerals indicate the same parts. (The following embodiments are also the same.)
[0009]
In the figure, the passenger conveyor is configured such that a number of steps 3 connected endlessly move between skirt cards 2 forming the lower part of the right and left balustrades 1. In addition, a handrail 4 is arranged on the outer periphery of the balustrade 1 and moves in synchronization with the movement of the step 3, and passengers on the step 3 are moved from the lower floor to the upper floor, from the upper floor to the lower floor, or horizontally. Carry. A floor plate 5 is laid at the entrance, and a comb plate 6 is pivotally attached (not shown) to the tip of the floor plate 5, and the comb plate 6 is generally arranged to be inclined.
[0010]
A comb 7 is disposed at the tip of the comb plate 6, the rear end of the comb 7 abuts on the comb plate 6, the front end extends to the step 3, and a groove formed on the upper surface of the step 3 along the traveling direction thereof. It keeps meshing with 3a with a slight gap. An absorptive element 8a made of a magnetic material is provided on the comb 7 side of the contact portion between the comb 7 and the comb plate 6, and an attracting element 8b made of an electromagnet or the like is provided on the comb plate 6 side. The adsorption device 8 is configured by the above. The adsorption element 8 b is connected to the control device 18 via the electric wire 9.
[0011]
On both sides of the comb plate 6, screw rods 10 that pass through the comb plate 6 are provided, and the lower ends of the screw rods 10 are fastened to the truss 11 side. A detection lever 12 penetrating the screw rod 10 is arranged on the upper surface of the comb plate 6 and is fixed to the comb plate 6 by two screw rods 13. An auxiliary spring 14 made of a compression coil spring is fitted to the screw rod 10, and an adjustment plate 15 for compressing the auxiliary spring 14 is fastened to the upper portion of the screw rods 10 and 13 by the screw rod 13. Above the end of the detection lever 12, a detector 16 comprising a switch for detecting the upward movement of the detection lever 12 is installed and connected to the control device 18 via an electric wire 17.
[0012]
Next, the operation of this embodiment will be described.
Under normal conditions, the adsorbing element 8b of the comb plate 6 adsorbs the adsorbed element 8a of the comb 7 by energization, whereby the comb 7 is fixed to the comb plate 6, and the tip of the comb 7 maintains a gap with the groove 3a of the step 3. They are engaged. Further, the auxiliary spring 14 is adjusted by the adjusting plate 15 so as to be rotationally displaced upward with a predetermined load at the portion of the comb 7, and always presses the comb plate 6 downward. And a passenger conveyor is drive | operated in said state.
[0013]
During the operation of the passenger conveyor, if clothing such as a passenger's shoes or a long skirt is accidentally sandwiched between the steps 3 and 7, the comb plate 6 is displaced upward. And if the detection lever 12 operates the detector 16, an abnormal signal will be transmitted to the control apparatus 18, and a passenger conveyor will stop immediately. After stopping the passenger conveyor, the control device 18 deenergizes the adsorption element 8b, so that the adsorption force for the adsorbent 8a is released and the comb plate 6 and the comb 7 become separable.
[0014]
In this way, when a passenger's shoes, clothing, etc. are caught, this can be reliably detected, and after the passenger conveyor stops, the passenger himself or herself asks for assistance from a staff member, etc. Without using, the comb 7 and the comb plate 6 can be easily separated and separated. Moreover, it is not necessary to disassemble the comb 7 from the comb plate 6 or to cut the comb 7 in order to rescue the victim, and it is easy to return the passenger conveyor to the normal state. The replacement comb 7 is also unnecessary and the economy is improved.
[0015]
In addition, after the passenger conveyor stops, even after the passenger separates the comb 7 and the comb plate 6 and escapes, the comb 7 does not automatically return to its original position, so there is no witness other than the victim. However, it is possible to specify that the cause of the stoppage of the passenger conveyor is due to the operation of the entrance / exit gate safety device.
[0016]
In the above embodiment, the adsorbent 8a is a magnetic body and the adsorbing element 8b is an electromagnet. However, the adsorbent 8a may be a suction plate and the adsorber 8b may be a vacuum pump.
[0017]
Embodiment 2. FIG.
FIG. 3 is an exploded perspective view of a comb plate and a comb portion showing an embodiment of the third invention of the present invention. 1 and 2 are shared by the second embodiment.
In this embodiment, a pin projecting downward as a convex portion 21A is provided on the contact surface of the comb 7 with the comb plate 6, and a concave portion into which the convex portion 21A is inserted on the surface of the comb plate 6 facing this pin. A hole is provided as 21B.
In contrast to FIG. 3, the convex portion 21 </ b> A may be provided on the comb plate 6 and the concave portion 21 </ b> B may be provided on the comb plate 7.
In this way, the positioning accuracy when the comb plate 6 and the comb 7 are integrated is improved, and the holding force by the suction device 8 is high.
[0018]
Embodiment 3 FIG.
FIG. 4 is an exploded perspective view of a comb plate and a comb portion showing another embodiment of the third invention of the present invention. 1 and 2 are also used in the third embodiment.
In this embodiment, instead of the convex portion 21A of FIG. 3, a quadrangular protrusion that extends in the lateral direction and protrudes downward is provided as the convex portion 22A, and the convex portion 22A is inserted instead of the concave portion 21B. A rectangular groove is provided as the recess 22B. The adsorbent 8a (not shown) is provided on the lower surface of the convex portion 22A.
In contrast to FIG. 4, the convex portion 22 </ b> A may be provided on the comb plate 6 and the concave portion 22 </ b> B may be provided on the comb 7.
In this way, the same effect as in the second embodiment can be obtained.
[0019]
Embodiment 4 FIG.
FIGS. 5 and 6 are views showing an embodiment of the fourth aspect of the present invention. FIG. 5 is an exploded perspective view of the comb plate and the comb portion, and FIG. 6 is a side sectional view showing the holding state of the comb plate and the comb. 1 and 2 are also used in the fourth embodiment.
In this embodiment, a protrusion 23A protruding downward and a protrusion 23B protruding in the direction of the comb plate 6 are formed on the lower surface of the comb 7 that contacts the comb plate 6, and the comb plate 6 contacts the comb 7. A hole 24A that engages with the protrusion 23A is formed on the upper surface, and a hole 24B that engages with the protrusion 23B is formed on the end surface. The holding mechanism 25 is formed by the protrusions 23A and 23B and the holes 24A and 24B. .
[0020]
In this way, the comb plate 6 and the comb 7 are sucked and held by the suction device 8 and the suction state is strengthened by the holding mechanism 25.
The adsorbing element 8b exerts an adsorbing force when energized and disappears when de-energized. Therefore, when the passenger conveyor is powered off, the comb plate 6 and the comb 7 are separated irrespective of the passenger being caught. There is a risk of shifting.
[0021]
In that case, every time the passenger conveyor is activated, it is necessary to check or adjust the engagement between the upper floor landing and the lower floor landing comb 7 and the comb plate 6, and time is required until the operation starts. However, in this embodiment, since the holding mechanism 25 is provided, the comb 7 and the comb plate 6 are not unexpectedly separated.
[0022]
【The invention's effect】
As described above, according to the present invention, a detector is provided at the end of the floor plate arranged at the entrance and that detects that the comb plate to which the comb is attached has been displaced upward. The adsorbing element is provided on the comb plate, and the adsorbing element is constantly energized by the control device to adsorb the adsorbed element.When the detector detects the displacement of the comb plate, the adsorbing element is deactivated and the adsorbing element is adsorbed. The suction force is released. As a result, when a passenger's shoes, clothes, etc. are caught, this can be detected reliably, and after stopping the passenger conveyor, the passenger should use his / her own staff or ask for assistance from a staff member, etc. The comb and the comb plate can be easily separated and separated.
[Brief description of the drawings]
FIG. 1 is a side view of a passenger conveyor entrance / exit showing Embodiment 1 of the present invention.
FIG. 2 is an enlarged view of a portion II in FIG.
FIG. 3 is an exploded perspective view of a comb plate and a comb portion showing Embodiment 2 of the present invention.
FIG. 4 is an exploded perspective view of a comb plate and a comb portion showing Embodiment 3 of the present invention.
FIG. 5 is an exploded perspective view of a comb plate and a comb portion showing Embodiment 2 of the present invention.
6 is a side cross-sectional view showing a comb plate and a comb holding state of FIG. 5; FIG.
[Explanation of symbols]
3 steps, 5 floor board, 6 comb board, 7 comb, 8 adsorption device, 8a adsorber, 8b adsorption element, 12 detection lever, 16 detector, 18 control device, 21A convex part, 21B concave part, 22A convex part, 22B Recess, 23A, 23B protrusion, 24A, 24B hole, 25 holding mechanism.

Claims (4)

A comb plate provided at the end of the floor plate arranged at the entrance to the step, a comb attached to the tip of the comb plate and extending to the step, and detecting that the comb plate is displaced upward. A detector, an adsorbent provided on the comb plate side of the comb, an adsorbing element that adsorbs the adsorbent when provided at the tip of the comb plate, and the adsorbing element at all times. Passenger entrance / exit safety device comprising a control device that biases and deenergizes the adsorption element when the detector detects displacement of the comb plate. The entrance / exit safety device for a passenger conveyor according to claim 1, wherein an electromagnet is used as the attracting element and a magnetic material is used as the attracted element. The entrance / exit safety device for a passenger conveyor according to claim 1 or 2, wherein a convex portion is provided on one of the contact surfaces of the comb and the comb plate, and a concave portion into which the convex portion is inserted is provided on the other. The safety device for a passenger conveyor according to any one of claims 1 to 3, wherein the comb and the comb plate are provided with a holding mechanism that is engaged with each other to hold the state and can be separated by an external force. .

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