WO2008012866A1

WO2008012866A1 - Passenger conveyor

Info

Publication number: WO2008012866A1
Application number: PCT/JP2006/314610
Authority: WO
Inventors: Tatsuya Yoshikawa
Original assignee: Mitsubishi Electric Corporation
Priority date: 2006-07-25
Filing date: 2006-07-25
Publication date: 2008-01-31
Also published as: EP2045203A1; EP2045203A4; JPWO2008012866A1

Abstract

A passenger conveyor having steps with step rollers, guide rails for guiding the step rollers, and an abnormality detection device for detecting whether there is a separation of a step roller from a guide rail. The steps are moved in an endless circulation route. The circulation route has a forward route and a return route located under the forward route. The return route has a return route-side transition section in which adjacent steps are moved while being vertically displaced from each other. The abnormality detection section detects whether there is a separation of a step roller from a guide rail when the steps are moved in the return route-side transition section.

Description

Technical field

TECHNICAL FIELD [0001] The present invention relates to a passenger competitor such as an escalator moving sidewalk.

[0002] Generally, each step of an escalator is circulated and moved between an outward path side for transporting passengers and a return path side located below the outward path side. In conventional escalators, if the toe of a rubber shoe is caught between the steps when moving on the forward path side, the front wheel of the step may be lifted by the guide rail force.

[0003] Conventionally, in order to detect the lifting of the front wheel of a step, a safety device for an escalator having a movable rail disposed above the guide rail and a shoe biting detection mechanism operated by displacement of the movable rail has been proposed. Has been. The shoe biting detection mechanism is activated when the movable rail is pushed up to the front wheel of the step. The lift of the front wheel of the step is detected by the operation of the shoe biting detection mechanism.

[0004] Since the movable rail is premised on the toes of rubber shoes being sandwiched between the steps, the movable rail is disposed only above the guide rail that guides the steps when moving on the forward path side. Therefore, the lift of the front wheel of the step is detected only when the step is moved on the forward path side (see Patent Document 1).

[0005] Patent Document 1: Japanese Utility Model Publication No. 63-46457

Disclosure of the invention

Problems to be solved by the invention

[0006] Therefore, when the step is moved on the return path side, it is impossible to detect the lifting of the front wheel of the step. As a result, for example, when a foreign object such as a coin falls into the truss of the escalator and the foreign object is caught between the steps moved on the return path side, the front wheel is moved while the front wheel is lifted. turn into. As a result, the escalator device may be damaged due to the step colliding with, for example, a truss. [0007] The present invention has been made to solve the above-described problems, and an object of the present invention is to obtain a passenger competitor that can more reliably prevent damage to equipment in the truss. Means to solve

[0008] A passenger competitor according to the present invention has a step roller, a plurality of steps moved along an endless circulation path, a guide rail for guiding the step roller, and whether or not the step roller is separated from the guide rail The circulation path has a forward path and a return path located below the forward path. The return path has the steps adjacent to each other in the vertical direction. It has a return side transition part that is moved while being displaced, and the abnormality detection device detects whether or not the step roller is separated from the guide rail when the step is moved along the return side transition part.

Brief Description of Drawings

FIG. 1 is a side view showing an escalator according to Embodiment 1 of the present invention.

FIG. 2 is an enlarged view showing a portion II in FIG.

3 is a cross-sectional view taken along the line ΠΙ-ΠΙ in FIG.

FIG. 4 is an enlarged view showing a state where a foreign object is sandwiched between the steps in FIG. 2 and some steps are lifted.

FIG. 5 is an enlarged view showing a part V in FIG.

FIG. 6 is a sectional view taken along line VI-VI in FIG.

FIG. 7 is a side view showing a return side lower end transition portion of an escalator according to Embodiment 2 of the present invention.

FIG. 8 is an enlarged view showing a portion VIII in FIG.

FIG. 9 is a sectional view taken along line IX-IX in FIG.

FIG. 10 is a side view showing a return side upper end transition portion of an escalator according to Embodiment 2 of the present invention.

FIG. 11 is an enlarged view showing a part XI in FIG.

12 is a cross-sectional view taken along line XII-XII in FIG.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

Embodiment 1.

FIG. 1 is a side view showing an escalator according to Embodiment 1 of the present invention. In the figure, a drive machine 2 and a sprocket body 3 that is rotated by the drive force of the drive machine 2 are provided at the upper end of the truss (main frame) 1. The sprocket body 3 has a drive sprocket 4 and an upper step sprocket 5 that are rotated integrally with each other. A lower step sprocket 6 is provided at the lower end of the truss 1.

A drive chain 7 is wound around the drive sprocket 4. The driving force of the driving machine 2 is transmitted to the driving sprocket 4 through the driving chain 7. The drive sprocket 4 and the upper step sprocket 5 are rotated together as the drive sprocket 4 receives the drive force from the drive machine 2.

[0012] The truss 1 supports a plurality of steps 9 connected endlessly by a step chain 8. The step chain 8 is wound around the upper step sprocket 5 and the lower step sprocket 6. Each step 9 is moved along an endless circulation path by the rotation of the upper step sprocket 5. The endless circulation path includes an outward path 10 for transporting passengers, and a return path 11 that is continuous with the outbound path 10 and is located below the outbound path 10.

[0013] The forward path 10 is configured such that each adjacent step 9 is moved in the inclined direction while the middle part of the truss 1 is moved, and each adjacent step 9 is aligned in the horizontal direction. The upper end horizontal portion and the forward side lower horizontal portion moved along the upper end portion and the lower end portion of the truss 1, and the forward upper end horizontal portion and the forward side lower end horizontal portion, respectively, and the forward side inclined portion. Each step 9 adjacent to each other has a forward side upper end transition part and a forward side lower end transition part that are moved while being displaced in the vertical direction.

[0014] The return path 11 is configured such that the steps 9 adjacent to each other are moved in the middle of the truss 1 while the adjacent steps 9 are aligned in the inclination direction, and the steps 9 adjacent to each other are aligned in the horizontal direction. Return side upper end horizontal part and return side lower end horizontal part moved respectively at the upper end part and lower end part of truss 1, and between the return side upper end horizontal part and return side lower end horizontal part and return side inclined part The adjacent steps 9 are moved while being displaced in the vertical direction. It has a return side upper end transition part and a return side lower end transition part which are moved.

FIG. 2 is an enlarged view showing a II part of FIG. 3 is a cross-sectional view taken along the line ΙΠ-ΙΠ in FIG. In FIG. 1, part II shows the return side lower end transition part. In the figure, each step 9 includes a step body 12, a step shaft 13 projecting from both ends of the step body 12 in the width direction, to which the step chain 8 is connected, and a pair of rotatably provided on each step shaft 13. And a pair of follower rollers (step rollers) 15 that are rotatably provided on the step body 12.

In the truss 1 (FIG. 1), a pair of drive roller guide rails 16 for guiding the drive roller 14 and a pair of follower roller guide rails 17 for guiding the follower roller 15 are arranged. When each step 9 is moved along the circulation path, the drive roller 14 is guided to the drive roller guide rail 16 and the follower roller 15 is guided to the follower roller guide rail 17. That is, each step 9 is moved along the circulation path while being guided by the driving roller guide rail 16 and the follower roller guide rail 17.

[0017] Each drive roller guide rail 16 includes a lower restricting portion 16a that restricts the downward displacement of the drive roller 14, an upper restricting portion 16b that restricts the upward displacement of the drive roller 14, and a lower restricting portion. 16a and a connecting portion 16c connecting the upper restricting portion 16b. Accordingly, each drive roller 14 is restricted from being displaced in the vertical direction with respect to the drive roller guide rail 16. Each of the driving rollers 14 in the normal state is placed and guided on the lower restricting portion 16a.

Each follower roller guide rail 17 has a lower restricting portion 17a for restricting the downward displacement of the follower roller 15, and a vertical portion 17b provided perpendicular to the edge of the lower restricting portion 17a.ヽ. Accordingly, each follower roller 15 is restricted only in a downward displacement with respect to the follower roller guide rail 17. Each normal follower roller 15 is placed and guided on the lower regulating portion 17a.

Here, when each step 9 is moved on the return side lower end transition portion, each step 9 adjacent to each other is displaced in the vertical direction, so that foreign matters such as coins that have fallen into the truss 1 It becomes easy to get caught between the steps 9. If a foreign object gets caught between each step 9, some steps 9 may be lifted.

[0020] FIG. 4 shows a state in which some of the steps 9 are lifted up with foreign matter sandwiched between the steps 9 in FIG. FIG. In the figure, when the foreign object 18 is sandwiched between the adjacent steps 9 and the step 9 is lifted, the follower roller 15 is separated upward from the follower roller guide rail 17 ( It ’s floating.

[0021] When each step 9 is moved with foreign matter 18 sandwiched between each step 9, each step 9 is moved away from the lower end transition portion on the return side while the follower roller 15 is separated from the guide rail 17 for the follower roller. It will be moved.

Therefore, an abnormality detection device 21 that detects whether or not the follower roller 15 is separated from the follower roller guide rail 17 is provided on any one of the follower roller guide rails 17 with a plate-like attachment member 20. Is provided. The abnormality detection device 21 detects whether or not the follower roller 15 is separated from the follower roller guide rail 17 when each step 9 is moved along the return path lower end moving portion.

The abnormality detection device 21 urges the movable piece 22 in a direction approaching the follower roller guide rail 17 and a rod-like movable piece (displacement body) 22 that can be displaced with respect to the follower roller guide rail 17. Stopper 24 that controls the displacement of the movable piece 22 in the direction approaching the biasing spring 23 and the follower roller guide rail 17 and detection that detects the displacement of the movable piece 22 in the direction away from the follower roller guide rail 17 Switch 25.

[0024] The movable piece 22 is displaceable between a normal position where the distance from the lower regulating portion 17a is a predetermined value and a detection position farther from the follower roller guide rail 17 than the normal position. . In this example, the movable piece 22 is displaced with respect to the attachment member 20 to be displaced between the normal position and the detection position. The movable piece 22 is disposed above the follower roller guide rail 17. Accordingly, the movable piece 22 is displaced from the normal position to the detection position by being displaced upward. Further, the movable piece 22 is arranged so as to intersect the length direction of the guide rail 17 for the follower roller.

[0025] The position of the movable piece 22 with respect to the length direction of the guide rail 17 for the follower roller is the section through which the follower roller 15 passes when the step 9 is moved along the lower end transition portion on the return side (return side lower detection position setting). Is set at a predetermined position in (section). That is, when the follower roller 15 passes between the movable piece 22 and the follower roller guide rail 17, the step 9 is moved in the return side lower end transition portion (FIGS. 2 and 4). [0026] The distance between the movable piece 22 and the lower restricting portion 17a when in the normal position is larger than the outer diameter of the follower roller 15. That is, when the movable piece 22 is in the normal position and the follower roller 15 is rolled while being in contact with the follower roller guide rail 17, the follower roller 15 is not in contact with the movable piece 22 (ie, the movable piece It is designed to pass between the movable piece 22 and the lower control part 17a. The movable piece 22 is held in the normal position by contacting the stopper 24.

The detection switch 25 detects whether or not the movable piece 22 is displaced to the detection position. The detection switch 25 outputs a detection signal when the displacement of the movable piece 22 to the detection position is detected, and stops outputting the detection signal when the position of the movable piece 22 is also out of the detection position force.

[0028] When the step 9 is moved along the return side lower end transition portion while the follower roller 15 is separated from the follower roller guide rail 17, the movable piece 22 is urged by being pushed by the follower roller 15. The spring 23 is displaced in the direction away from the follower roller guide rail 17 (upward) against the urging force of the spring 23. That is, the movable piece 22 is pushed by the follower roller 15 when the follower roller 15 is moved away from the follower roller guide rail 17 and the step 9 is moved along the lower end transition portion on the return path, so that the movable piece 22 is moved to the normal position. It is displaced to the detection position.

In the abnormality detection device 21, the detection switch 25 detects the displacement of the movable piece 22 to the detection position, thereby detecting the separation of the follower roller 15 from the follower roller guide rail 17.

FIG. 5 is an enlarged view showing a portion V in FIG. 6 is a cross-sectional view taken along line VI-VI in FIG. In FIG. 1, the upper end transition portion on the return side is shown in the V portion. In the figure, an abnormality detecting device 31 for detecting the presence / absence of separation of the follower roller 15 from the follower roller guide rail 17 is provided on either one of the follower roller guide rails 17 via a plate-like mounting member 30. Is provided. The abnormality detection device 31 detects whether the follower roller 15 is separated from the follower roller guide rail 17 when each step 9 is moved along the return path side upper end transition portion.

The abnormality detection device 31 urges the movable piece 32 in a direction approaching the follower roller guide rail 17 and a rod-like movable piece (displacement body) 32 that can be displaced with respect to the follower roller guide rail 17. The stopper 34 for restricting the displacement of the movable piece 32 in the direction approaching the biasing spring 33 and the follower roller guide rail 17 and the change of the movable piece 32 in the direction away from the follower roller guide rail 17 And a detection switch 35 for detecting the position.

[0032] The movable piece (displacement body) 32, the urging spring 33, the stagger 34, and the detection switch 35 are composed of the movable piece (displacement body) 22, the urging spring 23, the strut 24, and the detection switch. The configuration is the same as each of the 25.

[0033] The position of the movable piece 32 with respect to the length direction of the guide rail 17 for the follower roller is determined by the section through which the follower roller 15 passes when the step 9 is moved along the return-side upper end transition portion (return-side upper detection position setting). Is set at a predetermined position in (section). That is, when the follower roller 15 passes between the movable piece 32 and the follower roller guide rail 17, the step 9 is moved in the return side upper end transition portion (FIG. 2).

[0034] When each step 9 is moved along the return side upper end transition part, as in the case where it is moved along the return side lower end transition part, a foreign object is caught between the adjacent steps 9 and partly. The follower roller 15 may be lifted and the follower roller 15 may be separated upward (lifted) with respect to the follower roller guide rail 17.

[0035] When the step 9 is moved on the return path side upper end transition portion while the follower roller 15 is separated from the follower roller guide rail 17, the movable piece 32 is urged by being pushed by the follower roller 15. Against the biasing force of the spring 33, the spring 33 is displaced in the direction away from the follower roller guide rail 17 (upward). That is, the movable piece 32 is pushed by the follower roller 15 when the step 9 is moved along the return path side upper end transition portion while the follower roller 15 is separated from the follower roller guide rail 17, and the normal position force detection position is detected. Is displaced.

In the abnormality detection device 31, the detection switch 35 detects the displacement of the movable piece 32 to the detection position, thereby detecting the separation of the follower roller 15 from the follower roller guide rail 17.

[0037] Information from each of the detection switches 25 and 35 is transmitted to a control device (not shown). The control device controls the operation of the escalator based on the information from each detection switch 25, 35. In this example, the control device stops the operation of the escalator when receiving the detection signal of at least one of the detection switches 25 and 35, and the detection of the detection signal of the force of each of the detection switches 25 and 35 Continue to operate the escalator when it is stopped.

Next, the operation will be described. Normal time when no foreign object 18 is sandwiched between the steps 9 Each step 9 is moved along the circulation path while being guided by the drive roller guide rail 16 and the follower roller guide rail 17. At this time, the follower roller 15 does not come into contact with the movable pieces 22 and 32, and the movable pieces 22 and 32 remain held at the normal positions.

[0039] For example, when each step 9 is moved along the return side lower end transition portion while the escalator is being lowered, the step 9 on the front side in the moving direction is compared to the step 9 on the rear side in the moving direction. It is moved while being displaced upward (Fig. 2). Accordingly, at this time, if a foreign object 18 is caught between the front step 9 and the rear step 9, the rear step 9 is lifted by the upward displacement of the front step 9. As a result, the follower roller 15 of the rear step 9 is separated upward from the follower roller guide rail 17 (FIG. 4).

Thereafter, when the step 9 is moved while the follower roller 15 is separated from the follower roller guide rail 17 and the follower roller 15 reaches the position of the movable piece 22, the follower roller 15 is moved to the movable piece 22. Contact. Thereby, the movable piece 22 is pushed up against the biasing force of the biasing spring 23. That is, the movable piece 22 is displaced from the normal position to the detection position.

When the movable piece 22 is displaced to the detection position, a detection signal is output from the detection switch 25 to the control device, and the operation of the escalator is stopped by the control of the control device.

[0042] Further, for example, when each escalator 9 is moved up the return path side upper end transition portion in the state where the escalator is being lifted, the step 9 on the front side in the moving direction becomes the step 9 on the rear side in the moving direction. On the other hand, it is moved while being displaced downward (Fig. 5). Therefore, at this time, if a foreign object is caught between the front step 9 and the rear step 9, the front step 9 is lifted by the downward displacement of the front step 9. As a result, the follower roller 15 of the front step 9 is separated upward from the follower roller guide rail 17.

Thereafter, when the step 9 is moved with the follower roller 15 being separated from the follower roller guide rail 17 and the follower roller 15 reaches the position of the movable piece 32, the follower roller 15 is moved to the movable piece 32. Contact. Thereby, the movable piece 32 is pushed up against the biasing force of the biasing spring 33. That is, the movable piece 32 is displaced from the normal position to the detection position.

When the movable piece 32 is displaced to the detection position, a detection signal is output from the detection switch 35 to the control device, and the operation of the escalator is stopped by the control of the control device.

[0045] In such an escalator, each step 9 has a return side upper end transition part and a return side lower end transition. Since the anomaly detectors 21 and 31 detect whether or not the follower roller 15 is lifted when moving each of the sections, the follower roller 15 is lifted even in the return path 11 It is possible to detect whether or not the follower roller 15 is lifted at the return side upper end transition part and the return side lower end transition part, which can be easily performed, and it is possible to detect the occurrence of the follower roller 15 lift early and more reliably. Therefore, it is possible to more reliably prevent problems that occur when each step 9 is moved along the return path 11 while the follower roller 15 is lifted (for example, damage to the equipment in the truss 1 due to the collision of the step 9). Can be aimed at.

The abnormality detection devices 21 and 31 are movable pieces 22 and 32 which are pushed upward by the follower rollers 15 separated from the follower roller guide rails 17 and displaced upward, and above the movable pieces 22 and 32. Therefore, it is possible to detect whether or not the follower roller 15 is separated from the follower roller inner rail 17 with a simple configuration.

Further, since the movable pieces 22 and 32 are arranged so as to intersect with the length direction of the follower roller guide rail 17, the follower roller 15 is separated from the follower roller guide rail 17. In some cases, the follower roller 15 can be more reliably brought into contact with the movable pieces 22 and 32, and erroneous detection of the abnormality detection devices 21 and 31 can be prevented.

[0048] In the above example, the abnormality detecting device 21 that detects the lifting of the follower roller 15 when each step 9 is moved on the return side lower end transition part, and each step 9 moves the return side upper end transition part. Both the abnormality detection device 31 that detects the lifting of the follower roller 15 when it is moved are used for the escalator. However, only the displacement force of the abnormality detection device 21 and the abnormality detection device 31 is used for the escalator, The lift of the follower roller 15 may be detected when each step 9 is moved only in either the return side lower end transition part or the return side upper end transition part.

[0049] Embodiment 2.

FIG. 7 is a side view showing a return side lower end transition portion of an escalator according to Embodiment 2 of the present invention. In the figure, one of the follower roller guide rails 17 is provided with an abnormality detection device 41 that detects whether the follower roller 15 is separated from the follower roller guide rail 17. The abnormality detection device 41 detects whether or not the follower roller 15 is separated from the follower roller guide rail 17 when each step 9 is moved along the return path lower end transition portion. FIG. 8 is an enlarged view showing a portion VIII in FIG. 9 is a cross-sectional view along the line IX-IX in FIG. In the figure, the abnormality detection device 41 is attached to the follower roller guide rail 17 via a plurality (two in this example) of attachment members 39 and 40. The mounting members 39 and 40 are arranged at intervals in the length direction of the follower roller guide rail 17.

[0051] The abnormality detection device 41 is a movable rail that can be displaced with respect to the guide rail 17 for the follower roller.

(Displacement body) 42, a pair of urging springs 43 for urging the movable rail 42 in a direction approaching the follower roller guide rail 17, and a displacement of the movable rail 42 in the direction approaching the follower roller guide rail 17 And a detection switch 45 for detecting the displacement of the movable rail 42 in the direction away from the follower roller guide rail 17.

The movable rail 42 is disposed along the follower roller guide rail 17. The length of the movable rail 42 is set to a predetermined length. Further, the movable rail 42 has a rail horizontal portion 42a facing the lower restricting portion 17a, and a rail vertical portion 42b provided vertically on the edge of the rail horizontal portion 42a. Furthermore, the movable rail 42 is displaced between a normal position where the distance between the lower control portion 17a and the rail horizontal portion 42a is a predetermined value and a detection position farther from the follower roller guide rail 17 than the normal position. It is possible.

[0053] The position of the movable rail 42 with respect to the length direction of the guide rail 17 for the follower roller is the section through which the follower roller 15 passes when the step 9 is moved along the return side lower end transition part (return side lower detection position setting). Is set at a predetermined position in (section). That is, when the follower roller 15 passes between the movable rail 42 and the follower guide rail guide rail 17, the step 9 is moved in the return path lower end moving part (FIG. 7).

One restriction member 44 is fixed to the attachment member 39, and the other restriction member 44 is fixed to the attachment member 40. In addition, a pair of contact members 46 that can come into contact with and separate from the respective restriction members 44 are fixed to both ends of the movable rail 42. Each abutting member 46 is urged by each urging spring 43 in a direction in which it abuts against each regulating member 44. The displacement of the movable rail 42 in the direction approaching the guide rail 17 for the roller is regulated by the fact that each abutting member 46 abuts on each regulating member 44. The movable rail 42 is held at the normal position when each contact member 46 is in contact with each regulating member 44.

[0055] Between the horizontal rail portion 42a and the lower regulating portion 17a when the movable rail 42 is in the normal position. This interval is larger than the outer diameter of the follower roller 15. That is, when the movable rail 42 is in the normal position and the follower roller 15 rolls while contacting the follower roller guide rail 17, the follower roller 15 does not contact the movable rail 42 (that is, the movable rail 4). (While being away from 2) Passing between the rail horizontal part 42a and the lower restricting part 17a

The detection switch 45 is fixed to one mounting member 39. An operation member 47 for operating the detection switch 45 by the displacement of the movable rail 42 with respect to the follower roller guide rail 17 is fixed to an intermediate portion of the movable rail 42.

The detection switch 45 detects the displacement of the movable rail 42 to the detection position by operating the operation member 47. The detection switch 45 outputs a detection signal when detecting the displacement of the movable rail 42 to the detection position, and stops outputting the detection signal when the movable rail 42 is out of the detection position force.

[0058] When the step 9 is moved on the return side lower end transition portion while the follower roller 15 is separated from the follower roller guide rail 17, the movable rail 42 is pushed by the follower roller 15, Against the biasing force of each biasing spring 43, the biasing spring 43 is displaced in the direction away from the follower roller guide rail 17 (upward). That is, the movable rail 42 is pushed by the follower roller 15 when the follower roller 15 is moved away from the follower roller guide rail 17 and the step 9 is moved along the lower end transition portion on the return side, so that the movable rail 42 is moved to the normal position. Displaced to force detection position.

In the abnormality detection device 41, the detection switch 45 detects the displacement of the movable rail 42 to the detection position, thereby detecting the separation of the tracking roller 15 from the tracking roller guide rail 17.

[0060] When the movable rail 42 is pressed by the follower roller 15, the follower roller 15 is rolled while being in contact with the rail horizontal portion 42a. Thus, the presence or absence of the follower roller 15 from the follower roller guide rail 17 is detected within the range of the length of the movable rail 42 (within a predetermined range).

FIG. 10 is a side view showing the return side upper end transition portion of the escalator according to Embodiment 2 of the present invention. In the figure, one of the follower roller guide rails 17 is provided with an abnormality detecting device 51 for detecting whether the follower roller 15 is separated from the follower roller guide rail 17. The anomaly detection device 51 is used when each step 9 is moved along the return path upper end transition. The presence or absence of separation of the follower roller 15 from the follower roller guide rail 17 is detected.

FIG. 11 is an enlarged view showing a XI part of FIG. FIG. 12 is a cross-sectional view taken along the line ΧΠ-ΧΙΙ in FIG. In the drawing, the abnormality detection device 51 is attached to the guide roller 17 for the follower roller via a plurality of (two in this example) attachment members 49 and 50. The attachment members 49 and 50 are arranged at intervals in the length direction of the follower roller guide rail 17.

The abnormality detection device 51 is a movable rail that can be displaced with respect to the guide rail 17 for the follower roller.

(Displacement body) 52, a pair of urging springs 53 for urging the movable rail 52 in a direction approaching the follower roller guide rail 17, and a displacement of the movable rail 52 in the direction approaching the follower roller guide rail 17 And a detection switch 55 that detects the displacement of the movable rail 52 in the direction away from the follower roller guide rail 17.

[0064] The movable rail 52 is disposed along the guide rail 17 for the follower roller. The length of the movable rail 52 is set to a predetermined length. Further, the movable rail 52 has a rail horizontal portion 52a facing the lower restricting portion 17a, and a rail vertical portion 52b provided vertically on the edge of the rail horizontal portion 52a.

[0065] The position of the movable rail 52 with respect to the length direction of the guide rail 17 for the follower roller is a section through which the follower roller 15 passes when the step 9 is moved on the return side upper end transition portion (return side upper detection position setting). Is set at a predetermined position in (section). That is, when the follower roller 15 passes between the movable rail 52 and the follower guide rail guide rail 17, the step 9 is moved in the return path side upper end transition (FIG. 10).

Note that other configurations of the movable rail 52 are the same as the configurations of the movable rail 42. The respective configurations of the respective biasing springs 53, the respective regulating members 54, and the detection switches 55 are the same as the respective configurations of the respective biasing springs 43, the respective regulating members 44, and the detection switches 45.

One restricting member 54 and the detection switch 55 are fixed to the mounting member 49, and the other restricting member 54 is fixed to the mounting member 50. A pair of abutting members 56 that can be brought into contact with and separated from the respective regulating members 54 are fixed to both ends of the movable rail 52. An operation member 57 for operating the detection switch 55 by the displacement of the movable rail 52 with respect to the follower roller guide rail 17 is fixed to an intermediate portion of the movable rail 52. Each contact member 56 and operation part Each configuration of the material 57 is the same as each configuration of each contact member 46 and the operation member 47.

[0068] When the step 9 is moved on the return path side upper end transition portion while the follower roller 15 is separated from the follower roller guide rail 17, the movable rail 52 is pushed by the follower roller 15, Against the urging force of each urging spring 53, the urging spring 53 is displaced in the direction away from the follower roller guide rail 17 (upward). In other words, the movable rail 52 is pushed by the follower roller 15 when the follower roller 15 is moved away from the follower roller guide rail 17 and the step 9 is moved on the return side upper end transition portion, so that the movable rail 52 is moved to the normal position. Displaced to force detection position.

[0069] Information from each of the detection switches 45 and 55 is transmitted to a control device (not shown). The control device controls the operation of the escalator based on the information from each of the detection switches 45 and 55. In this example, the control device stops the operation of the escalator when receiving the detection signal of at least one of the detection switches 45 and 55, and the detection of the detection signal of the force of each of the detection switches 45 and 55 Continue to operate the escalator when it is stopped. Other configurations are the same as those in the first embodiment.

[0070] In such an escalator, the displacement bodies displaceable with respect to the follower roller guide rail 17 are the movable rails 42 and 52 arranged along the follower roller guide rail 17, so that the follower roller 15 The presence / absence of separation from the guide rail 17 for the following roller can be continuously detected within the length of the movable rails 4 2 and 52. Thereby, it is possible to more reliably detect the rising of each step 9 that is moved along the return path 11.

[0071] In the above example, the abnormality detection device 41 that detects the lift of the follower roller 15 when each step 9 is moved along the return path lower end transition portion, and each step 9 moves the return path upper end transition portion. Both the abnormality detection device 51 that detects the lifting of the follower roller 15 when it is moved are used for the escalator, but only the displacement force of the abnormality detection device 41 and the abnormality detection device 51 is used for the escalator, The lift of the follower roller 15 may be detected when each step 9 is moved only in either the return side lower end transition part or the return side upper end transition part.

Claims

The scope of the claims

[1] A plurality of steps having step rollers and being moved along an endless circulation path,

A guide rail for guiding the step rollers, and

An abnormality detecting device for detecting whether or not the guide rail force of the step roller is separated;

The circulation route has an outward route and a return route located below the outward route,

The return path side path has a return path side transition portion in which the steps that are adjacent to each other are moved while being displaced in the vertical direction.

The abnormality detection device detects whether or not the step roller is separated from the guide rail when the step is moved along the return side transition portion.

[2] The abnormality detection device includes a displacement body that is pushed by the step roller when the guide rail force is released and is displaced in a direction away from the guide rail force, and the displacement in a direction away from the guide rail. A detection switch for detecting a displacement of the body, wherein the detection switch detects the displacement of the displacement body to detect the separation of the step roller from the guide rail. The passenger competition according to item 1.

3. The safety device for a passenger competitor according to claim 2, wherein the displacement body is a rod-shaped movable piece arranged to intersect with the length direction of the guide rail.

4. The passenger competitor safety device according to claim 2, wherein the displacement body is a movable rail disposed along the guide rail.