JP2011098797A - Abnormality detection device of moving handrail of passenger conveyor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an abnormality detection device of a moving handrail of a passenger conveyor capable of early discovering an increase of sliding resistance between the moving handrail and a handrail guide and preventing or remarkably reducing abnormal wear of slide cloth of the moving handrail and the handrail guide. <P>SOLUTION: This abnormality detection device of the moving handrail of the passenger conveyor includes: the moving handrail 10 slidably engaged to the handrail guide 11 and circulating and moving by synchronizing with an operation of the passenger conveyor; temperature detection means 12a to 12e provided in the handrail guide 11 to detect a temperature of the handrail guide 11; and a control means 14 for outputting a control command when the temperature of the handrail guide 11 detected by the temperature detection means 12a to 12e exceeds a prescribed temperature. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an abnormality detection device for a moving handrail of a passenger conveyor.

  In the conventional apparatus for detecting an abnormality of a moving handrail of a passenger conveyor, a temperature sensor that is provided close to the outer periphery of the handrail driving wheel and detects heat generated by the slip of the handrail driving wheel, and a moving handrail in contact with the handrail driving wheel Provided near the outer peripheral surface, and a temperature sensor that detects heat generated in the moving handrail due to slip of the handrail drive wheel, and when the detected temperature of these temperature sensors exceeds a predetermined temperature, What is comprised so that the output of an abnormal signal and the output of a passenger conveyor stop command may be known (for example, refer patent document 1).

Japanese Patent Laid-Open No. 06-271264

However, the conventional apparatus for detecting an abnormality of a moving handrail of a passenger conveyor shown in Patent Document 1 detects heat generation due to a slip of a handrail driving wheel, but the handrail driving wheel slips and has an abnormally high temperature. This is a situation in which the sliding (friction) resistance between the moving handrail and the handrail guide that slides and guides this moving handrail has already increased abnormally. In this situation, wear of the slide cloth and handrail guide provided on the moving handrail has started, and generation of wear powder and the like has occurred.
Therefore, the conventional abnormality detection device for the moving handrail of a passenger conveyor disclosed in Patent Document 1 has a problem that such abnormal wear cannot be prevented in advance.

  In addition, when there is a margin in the driving force of the moving handrail by the handrail driving wheel, the slippage of the handrail driving wheel is increased even when the sliding resistance increases and the generation of wear powder occurs between the moving handrail and the handrail guide as described above. Therefore, there is a problem in that an increase in sliding resistance between the moving handrail and the handrail guide and generation of wear powder cannot be detected.

  The present invention has been made to solve such a problem, and can detect an increase in sliding resistance between the moving handrail and the handrail guide at an early stage, and abnormal wear of the sliding cloth of the moving handrail and the handrail guide. It is possible to obtain an abnormality detection device for a moving handrail of a passenger conveyor that can prevent or significantly reduce the above.

  In the abnormality detection device for the moving handrail of the passenger conveyor according to the present invention, the moving handrail is slidably engaged with the handrail guide, and is circulated and moved in synchronization with the operation of the passenger conveyor. The temperature detection unit detects the temperature of the handrail guide, and the control unit outputs a control command when the temperature of the handrail guide detected by the temperature detection unit exceeds a predetermined temperature.

  In the apparatus for detecting an abnormality of a moving handrail of a passenger conveyor according to the present invention, an increase in sliding resistance between the moving handrail and the handrail guide can be detected at an early stage, and abnormal wear of the slide cloth of the moving handrail and the handrail guide has occurred in advance. It is possible to prevent or greatly reduce the effect.

It is a figure which shows the whole passenger conveyor structure provided with the abnormality detection apparatus of the moving handrail which concerns on Embodiment 1 of this invention. It is a figure which shows the relationship between the principal part enlarged view containing the A section in FIG. 1, and each sensor part and control part which concern on Embodiment 1 of this invention. It is the figure which expanded the upper manual part containing the B part and C part in FIG. 1 which concern on Embodiment 1 of this invention. It is the figure which expanded the lower manual part containing the D section and E section in FIG. 1 which concern on Embodiment 1 of this invention. It is sectional drawing of the moving handrail and handrail guide which concern on Embodiment 1 of this invention. It is a figure which shows the connection relation of the temperature detection apparatus of the handrail guide which concerns on Embodiment 1 of this invention, and a control part.

  The present invention will be described with reference to the accompanying drawings. Throughout the drawings, the same reference numerals indicate the same or corresponding parts, and redundant description thereof will be simplified or omitted as appropriate.

Embodiment 1 FIG.
1 to 6 relate to Embodiment 1 of the present invention. FIG. 1 is a diagram showing an overall configuration of a passenger conveyor provided with a moving handrail abnormality detection device, and FIG. FIG. 3 is an enlarged view of the upper part including the B and C parts in FIG. 1, and FIG. 4 is the D part in FIG. FIG. 5 is a cross-sectional view of the moving handrail and the handrail guide, and FIG. 6 is a diagram showing the connection relationship between the temperature detection device of the handrail guide and the control section.

  In the figure, reference numeral 1 denotes a truss that constitutes the basic framework of an escalator that transports passengers between an installed upper floor and a lower floor, and is constructed between the upper floor and the lower floor. An upper floor machine room is provided at the upper floor end of the truss 1, and a lower floor machine room is provided at the lower floor end of the truss 1.

A drive machine 2 that drives the operation of the escalator and a control panel 3 that controls the overall operation of the escalator by controlling the operation of the drive machine 2 and the like are installed in the upper floor side machine room.
An upper step sprocket 4a is provided in the upper floor side machine room, and a lower step sprocket 4b is provided in the lower floor side machine room so as to be rotatable. The upper step sprocket 4a and the lower step sprocket 4b are endless. A shaped step chain 5 is wound around.

  A plurality of steps 6 on which passengers of the escalator are boarded are connected and locked to the step chain 5 in an endless manner, and the rotational drive of the drive unit 2 is transmitted to the upper step sprocket 4a, so that the step chain As 5 circulates between the upper step sprocket 4 a and the lower step sprocket 4 b, the step 6 locked to the step chain 5 circulates and moves in the truss 1.

On the truss 1, a pair of balustrades 7 are erected along the left and right sides of the step 6, and an endless moving handrail 10 that circulates in synchronization with the step 6 is provided on the periphery of the balustrade 7. It has been.
The circulating movement of the moving handrail 10 operates by receiving rotational driving from the driving machine 2 via a handrail sprocket 4c provided coaxially with the upper step sprocket 4a and a handrail chain 8 wound around the handrail sprocket 4c. Driven by a handrail drive device 9. The handrail driving device 9 is disposed at a position closer to the upper floor side.

A handrail guide 11 that guides the movement of the moving handrail 10 is provided at the periphery of the balustrade 7. The handrail guide 11 is formed in a substantially oval cross section, and the moving handrail 10 is formed in a substantially C-shaped cross section. The moving handrail 10 covers the upper surface and both side surfaces of the handrail guide 11 so as to cover the handrail guide 11. Are slidably engaged with each other.
A sliding cloth (not shown) is provided on the inner surface of the moving handrail 10, that is, the sliding surface with the handrail guide 11, for the purpose of smoothing the sliding.

The movable handrail 10 is exposed at the outer periphery of the balustrade 7 on the forward path side, that is, the upper side and the front and rear end sides, and penetrates into the skirt guard provided at the lower part of the balustrade 7 on the return path side, that is, the lower side.
The moving path of the moving handrail 10 includes an upper nual portion and a lower nual portion, an outward sloping portion and a return sloping portion, and horizontal portions on the outward side, the outward route side, the return route side and the return route side. It has become.

The upper manual portion is a substantially semicircular portion where the moving direction of the moving handrail 10 is reversed at the upper end of the passenger conveyor, and the lower manual portion is the moving handrail at the lower end of the passenger conveyor. 10 is a portion having a substantially semicircular shape in which the moving direction is reversed.
The forward sloping part is a part inclined on the forward side between the upper floor and the lower floor, and the backward sloping part is a part inclined correspondingly on the return path side between the upper floor and the lower floor. It is.

For each horizontal portion, the upper horizontal portion of the forward path is a substantially horizontally disposed portion that connects the upper end of the forward slope portion and the upper manual portion, and the lower horizontal portion of the forward route is the lower end and lower portion of the forward slope portion. The part arranged substantially horizontally to connect the side manual part, the upper horizontal part on the return path side is the part arranged substantially horizontally to connect the upper end of the slope part on the return side and the upper manual part, and the lower horizontal part on the return side is the return path Each of them indicates a substantially horizontally disposed portion that connects the lower end of the side inclined portion and the lower manual portion.
Note that the handrail guide 11 is temporarily interrupted near the handrail driving device 9 on the return path side inclined portion, and the flow of the moving handrail 10 can be adjusted by the terminal of the handrail guide 11.

A temperature sensor 12 that detects the temperature of the handrail guide 11 in this portion and outputs the temperature detection result is attached to the inside of the handrail guide 11 in the main part on the path of the moving handrail 10 as described above. The main part to which the temperature sensor 12 is attached is determined with reference to the position of the location where the wear of the handrail guide 11 is severe and the replacement frequency is high from the past examples.
That is, first, the first temperature sensor 12a is built in and attached to the handrail guide 11 in the bent portion, which is in the vicinity of the upper side of the handrail driving device 9 and is a connecting portion between the return side inclined portion and the return side upper horizontal portion. (Part A in FIG. 2).

A second temperature sensor 12b is built in and attached to the handrail guide 11 at a position closer to the upper horizontal portion of the upper manual portion (B portion in FIG. 3). A third temperature sensor 12c is built in and attached to the handrail guide 11 at a position close to the portion (C portion in FIG. 3).
Further, a fourth temperature sensor 12d is built in and attached to the handrail guide 11 at a position near the lower horizontal portion on the return path side of the lower manual section (D section in FIG. 4), and the lower horizontal section on the forward path side of the lower manual section. A fifth temperature sensor 12e is built in and attached to the handrail guide 11 at a position close to the portion (E portion in FIG. 4).

These temperature sensors 12 (first to fifth temperature sensors 12 a to 12 e) constitute a handrail guide temperature detection device 13, and the temperature sensor 12, that is, the handrail guide 11 output from the temperature detection device 13. The temperature detection result at each location is input to the control device 14.
The control device 14 is connected to a display device 15, a passenger conveyor stop means 16, and an alarm notification means 17. The control device 14 has a predetermined temperature detection result output from the temperature sensor 12. When the temperature is exceeded, it is determined that the sliding resistance between the moving handrail 10 and the handrail guide 11 has increased, and a control command is output to these devices and means.

When the display device 15 receives a command output when the temperature detection result by the temperature sensor 12 exceeds the predetermined temperature from the control device 14, the display device 15 displays that a temperature abnormality, that is, an increase in sliding resistance has occurred. is there.
The passenger conveyor stop means 16 receives a command output when the temperature detection result by the temperature sensor 12 exceeds the predetermined temperature from the control device 14, and stops the operation of the passenger conveyor.
The alarm reporting unit 17 receives a command output when the temperature detection result by the temperature sensor 12 exceeds the predetermined temperature from the control device 14 and performs maintenance management of the passenger conveyor, etc. An alarm indicating that a temperature abnormality, that is, an increase in sliding resistance has occurred is issued to the remote monitoring panel.

In the moving handrail abnormality detection device of the passenger conveyor configured as described above, the moving handrail 10 and the handrail guide 11 may be caused by some factor such as poor adjustment of the travel route of the moving handrail 10 or aged deterioration of the moving handrail 10 or the like. When the sliding resistance increases between normal times, the moving handrail 10 and the handrail guide 11 generate heat due to the friction.
Then, one or more of the temperature sensors 12 (first to fifth temperature sensors 12 a to 12 e) detect the temperature rise due to this heat generation, and the temperature detection result is sent to the control device 14.

The control device 14 determines that the sliding resistance between the moving handrail 10 and the handrail guide 11 has increased when detecting that the temperature detection result by these temperature sensors 12 exceeds the predetermined temperature, and the display device 15. Output control command to passenger conveyor stop means 16 and alarm issue means 17.
Upon receiving this control command, the display device 15 displays that a temperature abnormality has occurred, the passenger conveyor stop means 16 stops the operation of the passenger conveyor, and the alarm notification means 17 is a remote maintenance company or the like. An alarm is issued to the monitoring panel.

  In the abnormality detection device for a moving handrail of a passenger conveyor configured as described above, a moving handrail that slidably engages with a handrail guide and circulates in synchronization with the movement of the step, that is, the operation of the passenger conveyor, and the handrail A temperature sensor which is provided in the guide and is a temperature detection means for detecting the temperature of the handrail guide; and a control means for outputting a control command when the temperature of the handrail guide detected by the temperature detection means exceeds a predetermined temperature; By providing, it is possible to detect an increase in sliding resistance between the moving handrail and the handrail guide at an early stage, and to prevent or significantly reduce abnormal wear of the sliding cloth of the moving handrail and the handrail guide. It is.

In addition, the temperature sensor, which is a temperature detecting means, is a portion where the handrail guide is heavily worn and is frequently replaced, such as a bent portion at the connecting portion between the return-side inclined portion and the return-side upper horizontal portion, the upper nual portion, and / or By providing the handrail guide in the lower manual part, an increase in sliding resistance can be found earlier.
As described above, it is possible to extend the life of the moving handrail and the handrail guide.

DESCRIPTION OF SYMBOLS 1 Truss 2 Drive 3 Control board 4a Upper step sprocket 4b Lower step sprocket 4c Handrail sprocket 5 Step chain 6 Step 7 Railing 8 Handrail chain 9 Handrail drive device 10 Moving handrail 11 Handrail guide 12 Temperature sensor 12a First temperature sensor 12b First temperature sensor 12b 2 temperature sensor 12c 3rd temperature sensor 12d 4th temperature sensor 12e 5th temperature sensor 13 temperature detection device 14 control device 15 display device 16 passenger conveyor stop means 17 alarm issue means

Claims (6)

A movable handrail that slidably engages with the handrail guide and circulates in synchronization with the operation of the passenger conveyor,
A temperature detecting means provided on the handrail guide for detecting the temperature of the handrail guide;
An abnormality detection device for a moving handrail of a passenger conveyor, comprising control means for outputting a control command when the temperature of the handrail guide detected by the temperature detection means exceeds a predetermined temperature.   The temperature detection means is provided in a handrail guide of a bent portion that is a connection point between a return-path-side inclined portion and a return-path-side upper horizontal portion on a moving path of the moving handrail. Detection device for moving handrails of passenger conveyors.   3. The passenger according to claim 1, wherein the temperature detection unit is provided in a handrail guide of an upper manual part and / or a lower manual part on a moving route of the mobile handrail. Abnormality detection device for conveyor handrails.   The passenger conveyor according to any one of claims 1 to 3, further comprising a passenger conveyor stop unit that receives the control command output from the control unit and stops the operation of the passenger conveyor. Detection device for moving handrails.   2. The apparatus according to claim 1, further comprising alarm issuing means for issuing an alarm to a maintenance company that performs maintenance management of the passenger conveyor in response to the control command output from the control means. 4. An abnormality detecting device for a moving handrail of a passenger conveyor according to any one of 4 above.   6. The display device according to claim 1, further comprising a display unit that receives the control command output from the control unit and displays that a temperature abnormality has occurred in the handrail guide. Abnormality detection device for moving handrails of passenger conveyors.

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