JPH06171884A - Safety device for passenger conveyor - Google Patents

Abstract

PURPOSE:To surely prevent the foot or the like of a passenger from being pinched between a comb and a step, not by breakage of the comb, so as to improve safety. CONSTITUTION:A comb plate 10 is set to be movable on an adjoining floor plate 8 side, a pressure detector 21 is provided between the comb plate 10 and the floor plate 8 so as to detect the pressure applied on the comb plate 10, and the operation of a passenger conveyor is stopped according to output from the pressure detector 21.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a passenger conveyor safety device for preventing passengers' feet or the like from being caught between a comb and a step at an entrance / exit.

[0002]

2. Description of the Related Art FIG.
FIG. 10 is a schematic sectional view showing an entrance / exit of a conventional passenger conveyor shown in Japanese Patent Publication No. JP-A-2003-320, and FIG. 10 is a partially enlarged sectional view of FIG. In the figure, 1 is a step, 2 is a step chain connecting a number of steps 1, 3 is a driving sprocket provided under the floor of an entrance / exit for driving step 1, and 4 is driving force of a driving machine (not shown) The drive chain is transmitted to the sprocket 3.

5 is a balustrade installed upright on both sides of step 1,
6 is a moving handrail that moves in synchronization with step 1 (rubber handrail), 7 is a skirt guard provided at the lower end of the balustrade 5, and 8 is a plurality of floor plates provided side by side on the floor of the entrance / exit, A decorative plate 9 is joined to the upper surface thereof. 10
Is a comb plate provided side by side with the floor plate 8, and a similar decorative plate 9 is joined to the upper surface. A plurality of combs (combs) 11 are arranged in the width direction of the step 1 and screwed to the comb plate 10, and each of the combs 11 has a comb tooth portion 11a that meshes with the cleat of the step 1.

In the conventional passenger conveyor as described above, the resin comb 11 is used, and when the passenger's foot or the like collides with the comb 11 and the tip of the comb 11 is broken as shown in FIG. By detecting this and stopping the operation,
The passenger's feet and the like are prevented from being caught between the comb 11 and the step 1.

[0005]

In the conventional passenger conveyor configured as described above, the leg of the passenger is sandwiched between the comb 11 and the step 1 by using resin as the material of the comb 11. However, recently, in passenger conveyors installed at airport terminals and supermarkets, for example, it is necessary to carry a luggage carrying cart with passengers, so that the comb 11 will not be broken due to collision of the cart wheels. For example, a comb 11 made of a material having high strength such as aluminum is used. In such cases,
Even if the passenger's foot collides, the comb 11 does not break, and the foot etc.
There is a problem that there is a risk of being caught between 1 and step 1.

The present invention has been made to solve the above problems, and can more reliably prevent the foot of a passenger from being caught between the comb and the step. , It is an object of the present invention to obtain a passenger conveyor safety device which can improve safety.

[0007]

According to a first aspect of the present invention, there is provided a safety device for a passenger conveyor in which a comb plate can be moved to an adjacent floor plate side, and a pressure detector is provided between the comb plate and the floor plate.
The operation of the passenger conveyor is stopped according to the output from the pressure detector.

In the passenger conveyor safety device according to a second aspect of the present invention, the comb plate is provided with a roller and the outer frame is provided with a guide rail so that the comb plate can be moved to the adjacent floor plate side. And a pressure detector between the floorboard and
The operation of the passenger conveyor is stopped according to the output from the pressure detector.

In the passenger conveyor safety device according to a third aspect of the present invention, the comb plate is provided with a roller and the outer frame is provided with a guide rail so that the comb plate can be moved to the adjacent floor plate side. And a pressure detector between the floorboard and
Further, the comb plate is biased toward the pressure detector by the biasing means, and the operation of the passenger conveyor is stopped according to the output from the pressure detector.

[0010]

According to the present invention, the pressure applied to the comb plate is detected to prevent an accident such as a passenger's foot being caught between the comb and the step.

[0011]

【Example】

Example 1. FIG. 1 is a sectional view showing a safety device for a passenger conveyor according to an embodiment of the invention of claim 1. The same or corresponding parts as in FIG. 10 are designated by the same reference numerals and the description thereof will be omitted. In the figure, 21 is a comb plate 1 to which a comb 11 is attached.
It is a pressure detector fixed between 0 and the floor plate 8 adjacent thereto, and the comb plate 10 is movable to some extent in the step advancing direction, that is, to the floor plate 8 side. In addition, the safety device of this embodiment is configured to stop the operation of the passenger conveyor when the output from the pressure detector 21 exceeds the set value.

In the safety device as described above, when the passenger's foot or the like on step 1 collides with the comb 11, the comb plate 10 slightly moves and pressure is applied to the pressure detector 21. Then, when this pressure exceeds the set value, the operation of the passenger conveyor is stopped. Therefore, by setting the above-mentioned set value to an appropriate pressure, it is possible to more reliably prevent an accident in which a passenger's foot or the like is caught regardless of the material of the comb 11.

Example 2. Next, FIG. 2 is a plan view showing a passenger conveyor safety device according to an embodiment of the present invention.
3 is a sectional view taken along the line III-III in FIG. 2, and FIG.
FIG. 4 is a sectional view taken along the line IV-IV of FIG.

In the first embodiment, since the comb plate 10 has the strength and rigidity to withstand the load of passengers,
Normally, the weight is large, and even if a passenger's foot or the like collides with the comb 11, it does not move unless the impact is considerably large. However, even in the case of a slight collision, there is a risk that the foot or the like will be caught between the comb 11 and the step 1. Therefore, in the second embodiment,
The comb plate 10 is configured to move with a smaller load.

In the figure, 22 is an outer frame of a passenger conveyor provided on both sides of step 1, 23 is a guide rail provided on the outer frame 22 for guiding the movement of the comb plate 10, and 24 is an outer frame 2.
The comb plate 1 which is provided in 2 and is in the direction opposite to the step traveling direction
0 is a stopper that restricts the movement of the comb plate 10, two 25 are provided on both sides of the comb plate 10 and are rotatable rollers that roll on the guide rail 23, and 26 is a stopper that is provided on both sides of the comb plate 10.
4 is a projecting piece that comes into contact with 4. Other parts are the same as in the first embodiment.

By thus providing the comb plate 10 with the roller 25, the comb plate 10 having a large weight can be easily moved, and the pressure applied to the comb plate 10 can be sensitively detected by the pressure detector 21. Can improve safety.

Embodiment 3. Next, FIG. 5 is a sectional view showing a safety device for a passenger conveyor according to another embodiment of the present invention. Since the comb plate 10 of the second embodiment moves in the step advancing direction even under a light load, on the contrary, vibration is likely to occur during normal operation. When such vibration occurs, that is, the comb plate 10 moves to the step 1 side,
When returning to the pressure detector 21 side again, although the movement amount of the comb plate 10 is equal to or less than the set value of the pressure detector 21, the output overshoots due to the performance characteristics of the pressure detector 21, and the output is temporarily changed. If the value exceeds the set value, the passenger conveyor may stop operating due to a malfunction.

On the other hand, in the third embodiment, the guide rail 23 is inclined so that the comb plate 10 is always in contact with the pressure detector 21. As a result, vibration of the comb plate 10 during normal operation is prevented, and malfunction of the pressure detector 21 is prevented, so that the reliability of the device is improved. In addition,
Although the stopper 24 and the protruding piece 26 are omitted in FIG. 5, it goes without saying that they may be provided side by side.

Example 4. Next, FIG. 6 is a plan view showing a passenger conveyor safety device according to an embodiment of the present invention.
7 is a sectional view taken along the line VII-VII of FIG. 6, and FIG. 8 is a sectional view taken along the line VIII-VIII of FIG. In the figure, 31 is a spring receiver fixed to the outer frames 22 on both sides of the comb plate 10, 32 is a protruding piece provided on both sides of the comb plate 10 so as to face the spring receiver 31, and 33 is a spring receiver 31 and the protruding piece. 32 is a spring that is provided between the pressure detector 21 and the comb plate 10 to urge the comb plate 10 toward the pressure detector 21, and the length of the spring 33 can be adjusted. The pressure applied is adjustable.

In such a safety device, fluctuations in the output of the pressure detector 21 during normal operation are reduced, so malfunctions are prevented and the reliability of the device is improved.

[0021]

As described above, the safety device for a passenger conveyor according to the invention of claim 1 makes it possible to move the comb plate to the adjacent floor plate side, and a pressure detector is provided between the comb plate and the floor plate. Since the operation of the passenger conveyor is stopped according to the output from the pressure detector, even if the comb is not broken, it is possible to more reliably prevent the passenger's foot or the like from being caught between the comb and the step. Therefore, there is an effect that the safety can be improved.

In the passenger conveyor safety device according to a second aspect of the present invention, the comb plate is provided with a roller and the outer frame is provided with a guide rail so that the comb plate can be moved to the adjacent floor plate side. Since the pressure detector is provided between the plate and the floor plate and the operation of the passenger conveyor is stopped according to the output from the pressure detector, in addition to the same effect as the invention of claim 1, a small collision occurs. It is possible to move the comb plate by force, which improves the detection accuracy and reliability.

In the passenger conveyor safety device according to the third aspect of the present invention, the comb plate is provided with a roller and the outer frame is provided with a guide rail, so that the comb plate can be moved to the adjacent floor plate side. Since a pressure detector is provided between the floor plate and the comb plate by the urging means, the operation of the passenger conveyor is stopped according to the output from the pressure detector. In addition to the effect similar to that of the invention of claim 2, the comb plate can be constantly brought into contact with the pressure detector to prevent the comb plate from vibrating during the normal operation, whereby the pressure detection during the normal operation is performed. It is possible to suppress fluctuations in the output of the device and prevent malfunctions, and as a result, it is possible to further improve reliability.

[Brief description of drawings]

FIG. 1 is a sectional view showing a safety device for a passenger conveyor according to an embodiment of the present invention.

FIG. 2 is a plan view showing a safety device for a passenger conveyor according to an embodiment of the present invention.

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

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

FIG. 5 is a sectional view showing a safety device for a passenger conveyor according to another embodiment of the present invention.

FIG. 6 is a plan view showing a safety device for a passenger conveyor according to an embodiment of the present invention.

7 is a sectional view taken along the line VII-VII in FIG.

8 is a sectional view taken along the line VIII-VIII of FIG.

FIG. 9 is a schematic sectional view showing an example of an entrance / exit of a conventional passenger conveyor.

10 is a partially enlarged cross-sectional view of FIG.

11 is a cross-sectional view showing a state in which the comb of FIG. 10 is broken.

[Explanation of symbols]

 8 floor board 10 comb board 11 comb 21 pressure detector 22 outer frame 23 guide rail 25 roller 33 spring (biasing means)

Claims (3)

[Claims] 1. A comb plate, which is provided on the floor of the entrance / exit and is movable toward the adjacent floor plate, and is provided between the comb plate and the comb plate and the floor plate. A safety device for a passenger conveyor, comprising: a pressure detector, wherein the operation of the passenger conveyor is stopped according to an output from the pressure detector. 2. A comb plate provided on the floor of the entrance / exit and movable to the adjacent floor plate side, and a comb plate to which a comb is attached, and the comb plate provided on the comb plate for moving the comb plate. A roller, a guide rail provided on an outer frame on a side of the comb plate for guiding the roller, and a pressure detector provided between the comb plate and the floor plate. The passenger conveyor safety device is characterized in that the operation of the passenger conveyor is stopped according to the output of the passenger conveyor. 3. A comb plate provided on the floor of the entrance / exit and movable to the adjacent floor plate side, and a comb plate to which a comb is attached, and a comb plate provided on the comb plate for moving the comb plate. A roller, a guide rail provided on an outer frame on the side of the comb plate for guiding the roller, a pressure detector provided between the comb plate and the floor plate, and the pressure detection of the comb plate by the pressure detector. A safety device for a passenger conveyor, comprising: an urging means for urging the passenger conveyor to stop the operation of the passenger conveyor in response to an output from the pressure detector.