JPH1143279A - Foreign matter detecting device of passenger conveyor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a foreign matter detecting device of a passenger conveyor by which maintenance work efficiency can be improved by temporarily arranging a detecting tool in a boarding and alighting port at necessary time, and detecting a foreign matter fitted/installed between sash bars of a footboard. SOLUTION: An installing plate 13 is installed in a main frame intermediate side edge part of a floor plate of a boarding and alighting port, and a detecting plate 16 whose one side is pivotally fixed to the installing plate 13 and other side is arranged in a groove between mutual sash bars of a footboard passing through the under side of the floor plate of the boarding and alighting port, is also provided. Therefore, when the teeth of a comb are damaged by a foreign matter fitted to and installed in the groove between the mutual sash bars of the footboard, its comb is removed, and a detecting tool 12 is temporarily arranged in its position. When a passenged conveyor is operated in this condition, the detecting plate 16 corresponding to the foreign matter existent groove is pushed and displaced by the foreign matter of the groove. Therefore, the existence of the foreign matter fitted to and installed in the groove can be easily and reliably recognized, and the fitted/installed foreign matter can be precisely removed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foreign object detecting device for a passenger conveyor in which a tread provided with a crosspiece moves on a main frame.

[0002]

2. Description of the Related Art FIGS.
FIG. 5 shows a passenger conveyor similar to the escalator shown in US Pat. No. 2,772, FIG.
FIG. 6 is an enlarged view of the entrance / exit point of FIG. 5, FIG. 7 is a left side view of FIG. 6, and FIG. 8 is a perspective view of the comb plate of FIG. In the figure, 1
Is a main frame of the passenger conveyor, 2 is an entrance provided at an end of the main frame 1, and 3 is a floor plate on which the entrance 2 is formed.

[0003] Reference numeral 4 denotes a step which is connected endlessly and circulates through the main frame 1, and 5 denotes a step plate which forms the upper surface of the step 4,
There are provided a number of bars 6 whose lengths are arranged along the moving direction, and a groove 7 is formed between the bars 6. Reference numeral 8 denotes a comb fastened to an intermediate edge of the floor frame 3 of the entrance 2 at the center of the main frame 1, and is constituted by a mounting plate 9 and teeth 10 formed on the mounting plate 9 and having tips disposed in the grooves 7. I have. In addition, tooth 1
0 is formed for each groove 7.

[0004] The passenger conveyor is constructed as described above,
The step 4 circulates and moves on the main frame 1 to carry the passenger on the step board 5, and the step 4 passes below the floor plate 3 of the entrance 2. A comb 8 having a tip inclined downward in a groove 7 between the bars 6.
Of the floor plate 3 of the entrance 2
The passenger on the tread plate 5, that is, the footwear of the passenger, is scooped into the entrance 2 via the teeth 10 before entering the lower side of the vehicle.

[0005]

In the above-described passenger conveyor, when the foreign matter such as pebbles fits in the groove 7, the step 4 moves and approaches the entrance 2 to pass the comb 8. Then, the foreign matter fitted in the groove 7 collides with the teeth 10. This may cause damage to the tooth 10 colliding with the foreign matter. When such damage of the teeth 10 occurs, a new comb 8
Will be replaced. However, since a large number of steps 4 are provided, it is not easy to find a foreign matter fitted in the groove 7 in the tread plate 5 of the step 4, and the foreign matter is overlooked and the same foreign matter is There is a problem that the damage occurs again.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and there is provided a foreign object detecting device for a passenger conveyor which is temporarily installed at an entrance / exit when needed and which detects a foreign object fitted between the tread bars. The purpose is to gain.

[0007]

In a foreign object detecting device for a passenger conveyor according to the present invention, a mounting attached to an edge of a floor plate forming an entrance and exit provided at an end of a main frame near an intermediate portion of the main frame. A plate and a detection plate disposed on a side pivotally attached to the mounting plate and arranged on the other side in a groove between the crosspieces of a tread plate that moves under the floor plate at the entrance and exit by moving the main frame. Can be

Further, in the foreign object detecting device for a passenger conveyor according to the present invention, a mounting plate attached to an edge of a floor plate, which is provided at an end of the main frame, near an intermediate portion of the main frame of a floor plate forming an entrance / exit, The other side is pivotally attached to the mounting plate, and the other side moves between the main frame and the detection plate arranged in the groove between the crosspieces of the treads passing under the floorboard of the entrance and exit, and the cross between the crossings. There is provided a notification device that operates through displacement of the detection plate caused by being pushed by a foreign matter fitted in the groove.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiment 1 FIG. 1 and 2 are views showing an example of an embodiment of the present invention. FIG. 1 is a perspective view of a detector corresponding to a comb, and FIG. 2 is a perspective view illustrating a foreign matter detection state of the detector of FIG. It is. 1 and 2 are the same as those shown in FIGS.
A passenger conveyor is configured in the same manner as described above. In the figure, reference numeral 5 denotes a tread forming the upper surface of the step 4, provided with a number of bars 6 whose lengths are arranged along the moving direction, and grooves 7 formed between the bars 6.

Reference numeral 11 denotes foreign matter such as pebbles fitted in the groove 7;
Reference numeral denotes a detector temporarily provided at the edge of the floor board 3 of the entrance / exit 2 near the center of the main frame, and is a mounting plate manufactured to the same size as the comb 8 shown in FIG. 13. Mounting plate 1
3 are recessed in the edge of the tread plate 5 facing the crosspiece 6, and each groove 7
And a detection plate disposed on the side wall of the recess 14 by a shaft 15 and the other side disposed in the groove 7 between the bars 6. 16.

In the passenger conveyor foreign object detecting device constructed as described above, if the teeth 10 of the comb 8 of the passenger conveyor shown in FIGS. 5 to 8 are damaged, the damaged comb 8 is removed and A detector 12 is temporarily provided at the position.
When the passenger conveyor is operated in this state, the detection plate 16 corresponding to the groove 7 where the foreign matter 11 is present is pushed up and displaced by the foreign matter 11 fitted in the groove 7 as shown in FIG.

Thus, the presence of the foreign matter 11 fitted in the groove 7 can be easily and reliably recognized, and the fitted foreign matter 11 can be removed properly. Therefore,
To solve the problem that when the tooth 10 of the comb 8 is damaged due to the collision of the foreign substance 11, the fitted foreign substance 11 is overlooked and the damaged tooth 10 of the replaced new comb 8 is damaged again by the same foreign substance 11. Can be. Thereby, the efficiency of the maintenance work of the passenger conveyor can be improved.

Embodiment 2 FIG. 3 and 4 are views showing an example of another embodiment of the present invention. FIG. 3 is a perspective view of a detector corresponding to a comb, and FIG.
FIG. 4 is a detection circuit diagram including the detection tool of FIG. Except for FIGS. 3 and 4, a passenger conveyor is configured in the same manner as in FIGS. 5 to 8 described above. In the drawings, the same reference numerals as those in FIGS. 1 and 2 denote corresponding parts, and reference numeral 17 denotes an operation rod whose length is arranged along the bottom surface of each of the plurality of recesses 14 of the detector 12.

Numerals 18 denote rotating arms, which are arranged at both longitudinal ends of the operating rod 17, one end of which is fixed to the end face of the operating rod 17, and the other end of which is pivotally attached to a side surface of the mounting plate 13 by pins 19. Reference numeral 20 denotes a detection switch which is mounted on the mounting plate 13 and has an operation section opposed to the operation rod 17, 21 denotes a buzzer connected to the detection switch 20, 22
Numeral denotes a battery provided in a circuit in which the detection switch 20 and the alarm 21 are arranged, and 23 denotes an alarm device mainly composed of the operating rod 17, the detection switch 20 and the alarm 21.

In the foreign object detecting device for a passenger conveyor constructed as described above, the detecting plate 16 of the detecting tool 12 corresponding to the groove 7 in which the foreign object 11 exists is pushed up by the foreign object 11 fitted in the groove 7 and displaced. I do. Therefore, although detailed description is omitted, the same operation as the embodiment of FIGS. 1 and 2 can be obtained in the embodiment of FIGS.

In the embodiment shown in FIGS. 3 and 4, the detection plate 1 corresponding to the foreign substance 11 fitted in the groove 7 is used.
When the detector 6 is pushed up and displaced, the operating rod 17 is pushed and operates regardless of which one of the plurality of detection plates 16 is displaced. The operation of the operating rod 17 causes the detection switch 2
0 is pressed and closed, and the alarm 21 is energized by the circuit shown in FIG.

Therefore, the presence of the foreign matter 11
Is automatically notified by hearing. Thus, the presence of the foreign matter 11 fitted in the groove 7 can be more easily and reliably recognized, and the fitted foreign matter 11 can be accurately removed. Therefore, when the tooth 10 of the comb 8 is damaged due to the collision of the foreign matter 11, it is possible to eliminate the problem that the fitted foreign matter 11 is overlooked and the tooth 10 of the replaced new comb 8 is damaged again by the same foreign matter 11. can do. Thereby, the efficiency of the maintenance work of the passenger conveyor can be further improved.

[0018]

As described above, according to the present invention, the mounting plate attached to the edge of the floor plate, which is provided at the end of the main frame, forming the entrance and exit, is located near the middle of the main frame, and one side is connected to the mounting plate. The other side, which is pivotally attached, is provided with a detection plate disposed in a groove between the crosspieces of the treads of the treadboard which moves under the floor plate of the entrance by moving the main frame.

Thus, when the teeth of the comb are damaged by foreign matter fitted in the grooves between the crosspieces of the tread, the damaged comb is removed and a detector is temporarily provided at that position. When the passenger conveyor is operated in this state, the detection plate corresponding to the groove in which the foreign matter is present is pushed and displaced by the foreign matter in the groove. For this reason, the presence of the foreign matter fitted in the groove can be easily and reliably recognized, and the fitted foreign matter can be accurately removed. Therefore, when the teeth of the comb are damaged due to the collision of the foreign matter, it is possible to solve the problem that the damage of the same foreign matter occurs again on the tooth of the new comb which is replaced by overlooking the fitted foreign matter. This has the effect of improving the efficiency of maintenance work on the passenger conveyor.

Further, as described above, according to the present invention, a mounting plate mounted on an edge of a floor plate, which is provided at an end portion of the main frame, which forms an entrance and exit is provided near an intermediate portion of the main frame, and one side is provided on the mounting plate. A detection plate disposed in a groove between the crosspieces of a tread plate that is pivotally mounted and moves on the other side and moves under the floor plate at the entrance and exit by moving the main frame;
A notification device that operates through displacement of a detection plate caused by being pushed by a foreign matter fitted in a groove between the crossbars.

In this way, when the teeth of the comb are damaged by foreign matter fitted in the grooves between the crosspieces of the tread, the damaged comb is removed and a detector is temporarily provided at that position. When the passenger conveyor is operated in this state, the detection plate corresponding to the groove in which the foreign matter is present is pushed and displaced by the foreign matter in the groove. Then, the notification device operates by the displacement of the detection plate, and the presence of the foreign matter is automatically notified by the notification device. This makes it possible to more easily and surely recognize the presence of the foreign matter fitted in the groove, and to remove the foreign matter fitted properly. Therefore, when the teeth of the comb are damaged due to the collision of the foreign matter, it is possible to eliminate the problem that the fitted foreign matter is overlooked and the damaged tooth of the new comb is replaced by the same foreign matter. Therefore, there is an effect that the efficiency of the maintenance work of the passenger conveyor is further improved.

[Brief description of the drawings]

FIG. 1 is a view showing Embodiment 1 of the present invention, and is a perspective view of a detector equivalent to a comb.

FIG. 2 is a perspective view illustrating a foreign object detection state of the detector of FIG. 1;

FIG. 3 is a view showing the second embodiment of the present invention, and is a perspective view of a detector corresponding to a comb.

FIG. 4 is a detection circuit diagram constituted by the detection tool of FIG. 3;

FIG. 5 is a side view conceptually showing a passenger conveyor.

FIG. 6 is an enlarged view of an entry / exit point of FIG. 5;

FIG. 7 is a left side view of FIG. 6;

FIG. 8 is a perspective view of the comb plate of FIG. 6;

[Explanation of symbols]

1 main frame, 2 entrances, 3 floors, 5 treads, 6 crossings,
7 groove, 11 foreign matter, 13 mounting plate, 16 detection plate, 2
3 Notification device.

Claims (2)

[Claims] A step board provided with a number of crosspieces, moving on a main frame and passing under a floor plate at an entrance / exit, and a mounting plate mounted on an edge of the floor plate near the middle of the main frame. A foreign object detection device for a passenger conveyor, comprising: a detection plate disposed on one side pivotally connected to the mounting plate and the other side disposed in a groove between the crosspieces. 2. A step board provided with a number of crosspieces, moving on a main frame and passing under a floor plate at an entrance / exit, an attachment plate mounted on an edge of the floor plate near the center of the main frame. The other side is pivotally connected to the mounting plate and the other side is disposed in a groove between the crosspieces, and the other side is pivotally mounted to the mounting plate and the other side is disposed in a groove between the crosspieces. A foreign object detecting device for a passenger conveyor, comprising: a detecting plate which is operated by a displacement of the detecting plate which is generated by being pushed by a foreign object fitted in the groove.