JP2018154492A - Abnormality detecting device of step for passenger conveyor and abnormality detecting method of step - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to detect floating of a footboard from a step main body without being influenced by a foreign matter accumulated on a demarcation cleat.SOLUTION: An abnormality detecting device of a passenger conveyor for detecting floating of a footboard 1a from a step main body 1b, includes: fixed parts 3, 4 respectively fixed to one side and the other side in the left and right directions of a comb-line plate 2 disposed at an entrance, which are orthogonal to a moving direction of a step 1; brackets 5, 6 held by each of the fixed parts 3, 4; and a detection plate 7 which extends to the left and right directions orthogonal to the moving direction of the step 1 to be mounted on the brackets 5, 6 and has a lower end part 7a arranged with a predetermined dimension with respect to the footboard 1a of the step 1 so as to detect floating of the footboard 1a from the step main body 1b.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a passenger conveyor, and relates to a step abnormality detection device and a step abnormality detection method.

  Japanese Patent Application Laid-Open No. 2004-133867 discloses a conventional technique for detecting the lifting of a tread board from a step body of a passenger conveyor. This prior art includes rotating bodies respectively disposed on a pair of demarcation cleat portions on a step main body that are disposed on lateral sides that are orthogonal to the moving direction of the step. In addition, there is provided a shaft that extends in the left-right direction, is held by each of the rotating bodies, and is connected to each of the rotating bodies so as to be rotatable or rotatable. Moreover, the control means which consists of a pair of suction cup and a pair of string which control the motion with respect to the moving direction of each step of a rotary body is provided. In addition, a detection piece is provided which has a predetermined size with respect to the convex portion of the concave and convex portions formed on the stepping plate of the step, for example, is opposed to each other with a gap of 1 mm, and is provided integrally with the shaft. The conventional technology configured as described above detects that the stepping plate of the step is lifted from the step body by the above-described detection piece hitting the convex portion of the stepping plate.

JP 2011-116515 A

  The demarcation cleat described above constitutes the side portion of the stepping plate, and foreign matter such as dust may accumulate on the demarcation cleat. In this way, when detection of the lift of the tread from the step body is performed with foreign matter accumulated on the demarcation cleat, the height of the detection piece changes as the rotating body rides on the foreign matter, There is a concern that good detection accuracy cannot be obtained.

  In order to solve the above-described problems, an object of the present invention is to detect a step abnormality detection device and a step for a passenger conveyor that can detect the rising of a tread from a step body without being affected by foreign matter accumulated on a demarcation cleat. An object of the present invention is to provide an abnormality detection method.

  In order to solve the above-mentioned problems, a passenger conveyor step abnormality detection device according to the present invention is a passenger conveyor step abnormality detection device that detects the lift of a step tread from a step body, and is arranged at the entrance. A fixing portion fixed to each of one side and the other side of the plate in the left-right direction orthogonal to the moving direction of the step, a bracket held in each of the fixing portions, and a left and right orthogonal to the moving direction of the step Extending in the direction, attached to the bracket, and having a lower end disposed with a predetermined size with respect to the step plate of the step, and a detection plate for detecting the rise of the step plate from the step body. Yes.

  In order to solve the above-mentioned problem, a step abnormality detection method for a passenger conveyor according to the present invention is a step abnormality detection method for a passenger conveyor that detects the lifting of a step tread from a step body, and is disposed at an entrance / exit. A fixing portion is fixed to each of one side and the other side in the left-right direction orthogonal to the moving direction of the step of the comb plate, a bracket is held in each of the fixing portions, and a lower end portion is attached to the step board of the step. On the other hand, a detection plate for detecting the rise of the tread plate from the step body is attached to the bracket so as to be arranged with a predetermined dimension, and the passenger conveyor is driven so that the step moves in a direction away from the comb plate. It is characterized by that.

  According to the step abnormality detection device and the step abnormality detection method for a passenger conveyor according to the present invention, it is possible to obtain a tread lift detection accuracy from the step body which is better than the conventional one. Problems, configurations, and effects other than those described above will become apparent from the following description of embodiments.

It is a perspective view which shows the state which installed one Embodiment of the step abnormality detection apparatus of the passenger conveyor which concerns on this invention in the comb board which forms an entrance / exit. It is a perspective view which shows the fixing | fixed part and bracket with which this embodiment was equipped. It is a perspective view explaining the floating of the tread from the step main body which arose in the step of the passenger conveyor. It is a principal part expanded sectional view which shows the state by which the step board was fixed to the step main body.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of a step abnormality detection device and a step abnormality detection method for a passenger conveyor according to the present invention will be described with reference to the drawings.

  First, based on FIG. 3 and FIG. 4, the floating of the tread board from the step body which is the detection target of the present invention will be described.

  As shown in FIG. 4, the step board 1a of the step 1 having the concavo-convex portion is fixed to the step body 1b by the welded portion 1d. When the tread 1a is peeled off from the welded portion 1d, the tread 1a rises from the step body 1b as shown in FIG. If the lifting amount 1c of the tread 1a is an allowable value, for example, 1 mm or less, it is determined that the tread 1a is normal, but if it exceeds the allowable value such as 5 mm, the tread 1a is determined to be abnormally lifted. As described above, step 1 that is determined to be an abnormal lifting of the tread board 1a may cause damage that the tread board 1a collides with the comb board 2 and turns up as the passenger conveyor is driven. Therefore, when step 1 having a tread 1a having an abnormality is detected, it is necessary to replace it with step 1 having a normal tread 1a.

  Next, based on FIG.1 and FIG.2, the step abnormality detection apparatus of the passenger conveyor which concerns on one Embodiment of this invention is demonstrated.

  As shown in FIG. 1, the step abnormality detection device according to the present embodiment includes a comb plate 2 arranged at the entrance and exit on each of one side and the other side in the left-right direction perpendicular to the moving direction of step 1 indicated by an arrow 30. And fixed brackets 5 and 6 held by the fixed portions 3 and 4, respectively.

  Further, it extends in the left-right direction orthogonal to the moving direction of Step 1 and is attached to the brackets 5 and 6, and the lower end portion 7a has a predetermined dimension with respect to the convex portion of the step board 1a having the uneven portion of Step 1, for example, 1 mm. And a detection plate 7 for detecting the rising of the tread plate 1a from the step body 1b. The detection plate 7 is made of a transparent plate made of a corrugated plate made of a synthetic resin having flexibility and elasticity and having a waveform formed in the vertical direction.

  As shown in FIG. 2, the fixing portion 3 disposed on one side of the comb plate 2 is screwed with a screw for fastening the comb plate 2 to a frame which is a comb plate mounting member disposed on the lower side of the comb plate 2. A stud bolt 10 that holds the bracket 5 by being screwed into the screw hole 2a in a state where the screw that has been screwed into the screw hole 2a is removed is included. The fixing portion 3 is screwed into a female screw portion formed on the inner peripheral surface of the cylindrical portion of the stud bolt 10, and a screw 12 that narrows the bracket 5 between the upper end portion of the stud bolt 10 via a washer 14. Contains.

  Similarly, the fixing portion 4 arranged on the other side of the comb plate 2 has a stud bolt 11 for holding the bracket 6 by screwing into the screw hole 2b in which the screw for fastening the comb plate 2 to the frame is screwed. Contains. The fixing portion 4 is screwed into a female screw portion formed on the inner peripheral surface of the cylindrical portion of the stud bolt 11, and a screw 13 that narrows the bracket 6 between the upper end portion of the stud bolt 11 via a washer 15. Contains.

  As shown in FIG. 2, the bracket 5 held by the stud bolt 10 has an elongated hole 5a1 through which the screw 12 is inserted and extends in the moving direction of step 1 indicated by the arrow 30 in FIG. And an erecting portion 5b that is provided so as to be continuous with the extending portion 5a and has a long hole 5b1. The elongated hole 5a1 of the extending portion 5a is provided in a shape extending in the moving direction of step 1 indicated by the arrow 30, and the elongated hole 5b1 of the standing portion 5b is provided in a shape extending in the vertical direction. ing.

  Similarly, the bracket 6 held by the stud bolt 11 has a long hole 6a1 through which the screw 13 is inserted, and an extending portion 6a extending in the moving direction of step 1 indicated by an arrow 30 in FIG. And a standing portion 6b having a long hole 6b1. The elongated hole 6a1 of the extending portion 6a is provided in a shape extending in the moving direction of step 1 indicated by the arrow 30, and the elongated hole 6b1 of the standing portion 6b is provided in a shape extending in the vertical direction. ing.

  Further, in the present embodiment, a back plate 8 that extends in the left-right direction orthogonal to the moving direction of step 1 indicated by the arrow 30 and is disposed on the back side of the detection plate 7, and the left and right that is orthogonal to the moving direction of step 1. A reinforcing plate 9 extending in the direction and arranged on the front side of the detection plate 7.

  The back plate 8 is made of a synthetic resin plate having appropriate rigidity and elasticity. For example, the upper end portion is set to a height that matches the upper end portion of the detection plate 7, and the lower end portion is lower than the lower end portion 7 a of the detection plate 7. Is also set high. That is, the height dimension is set smaller than that of the detection plate 7.

  The reinforcing plate 9 is made of a rigid plate, and black portions 9a and yellow portions 9b are alternately arranged on the surface. These black portion 9a and yellow portion 9b form a caution sign that alerts the user that the abnormality detection operation in Step 1 is in progress. The height dimension of the reinforcing plate 9 is set smaller than the height dimension of the standing portions 5b and 6b of the brackets 5 and 6.

  An attention calling plate 17 is held on the upper end portion of the back plate 8. The attention calling plate 17 is made of a synthetic resin plate, and has black portions 17a and yellow portions 17b alternately forming a warning sign on the surface.

  The width dimensions in the left-right direction orthogonal to the moving direction in step 1 indicated by the arrows 30 of the detection plate 7, the back plate 8, the reinforcing plate 9, and the attention calling plate 17 are set, for example, the same.

  The detection plate 7 and the back plate 8 integrated with the alerting plate 17 are disposed on the back side of the standing portions 5b and 6b of the brackets 5 and 6, and the reinforcing plate 9 is disposed on the standing portions 5b and 5b of the brackets 5 and 6. It is arranged on the front side of 6b. The detection plate 7, the back plate 8 integrated with the alerting plate 17, and the reinforcing plate 9 are formed by screws 20 and 21 inserted into the elongated holes 5 b 1 and 6 b 1 formed in the standing portions 5 b and 6 b of the brackets 5 and 6. By fastening, the brackets 5 and 6 are integrally held by the standing portions 5b and 6b via the washers 22 and 23.

  Next, an embodiment of a step abnormality detection method performed using the step abnormality detection device according to the present embodiment configured as described above will be described.

  In the step abnormality detection method according to the present embodiment, the fixing portions 3 and 4 are respectively provided on one side and the other side in the left-right direction perpendicular to the moving direction of the step 1 indicated by the arrow 30 of the comb plate 2 arranged at the entrance / exit. The brackets 5 and 6 are held by the respective fixing portions 3 and 4, and the lower end portion 7a is arranged with a predetermined dimension with respect to the convex portion of the tread 1a having the uneven portion of Step 1, for example, at an interval of 1 mm. As described above, the detection plate 7 for detecting the lifting of the tread board 1a from the step body 1b is attached to the brackets 5 and 6, and the passenger conveyor is driven so that the step 1 moves in the direction of the arrow 30 away from the comb plate 2. is there.

  As a preparatory work, the worker determines whether the tread board 1a adjacent to the comb board 2 is normal as a result of visual observation and hand contact. If it is considered normal, step 1 having the step board 1a close to the comb plate 2 is determined as the reference step. The step abnormality detection device according to the present embodiment is installed so that the detection plate 7 is positioned on the determined reference step. When it is difficult to determine whether the step board 1a adjacent to the comb plate 2 is normal, the passenger conveyor is moved in the direction of the arrow 30 in FIG. 1 to have the step board 1a adjacent to the comb plate 2 and determined to be normal. Step 1 is determined as a reference step.

  Below, the step abnormality detection method according to the present embodiment will be described in detail.

  For example, the screw screwed into the screw hole 2a on one side of the comb plate 2 and the screw screwed into the screw hole 2b on the other side of the comb plate 2 are removed, and the stud bolt 10 is screwed into the screw hole 2a. Then, the stud bolt 11 is screwed into the screw hole 2b.

  A screw 12 inserted through a long hole 5a1 formed in the extending portion 5a of the bracket 5 placed on the upper end portion of the stud bolt 10 through a washer 14 is formed on the inner peripheral surface of the cylindrical portion of the stud bolt 10. Screwed into the female thread portion. In this state, the position of the extending portion 5a that determines the position of the standing portion 5b of the bracket 5 using the elongated hole 5a1 of the extending portion 5a of the bracket 5, that is, the extending portion 5a extending in the direction of the arrow 30 is used. The position is adjusted to a position suitable for detecting the abnormality of the tread board 1a in step 1. After the position adjustment, the screw 12 is fastened and the extending portion 5a is compressed to be held by the stud bolt 10.

  Similarly, the screw 13 inserted through the washer 15 into the elongated hole 6a1 formed in the extended portion 6a of the bracket 6 placed on the upper end portion of the stud bolt 11 is inserted into the inner periphery of the cylindrical portion of the stud bolt 11. It is screwed into the female thread formed on the surface. In this state, the position of the extending portion 6a that determines the position of the standing portion 6b of the bracket 6 using the elongated hole 6a1 of the extending portion 6a of the bracket 6, that is, the extending portion 6a extending in the direction of the arrow 30 is used. The position is adjusted to a position suitable for detecting the abnormality of the tread board 1a in step 1. After the position adjustment, the screw 13 is fastened to narrow the extended portion 6a and hold it on the stud bolt 11.

  In this state, the reinforcing plate 9 is disposed on the front side of the standing portions 5b and 6b of the brackets 5 and 6, and the detection plate 7 and the back plate 8 holding the alerting plate 17 are connected to the standing portions 5b and 6b. Screws 20 and 21 which are arranged on the back side and are inserted into the long holes 5b1 and 6b1 of the standing portions 5b and 6b are inserted into the insertion holes formed in the reinforcing plate 9, the detection plate 7 and the back plate 8, respectively. A nut disposed on the back side of the back plate 8 is screwed onto the screws 20 and 21. Here, the reinforcing plate 9, which is integrally disposed so that the lower end portion 7a of the detection plate 7 is, for example, 1 mm from the tread plate 1a of Step 1 by using the long holes 5b1, 6b1 of the standing portions 5b, 6b, The detection plate 7 and the back plate 8 are moved up and down to adjust the position. After the position adjustment, the screws 20 and 21 are fastened to hold the reinforcing plate 9, the detection plate 7, and the back plate 8 on the standing portions 5 b and 6 b of the brackets 5 and 6.

  In this way, the step abnormality detection device according to the present embodiment is attached to the comb plate 2.

  In this state, the passenger conveyor is driven, and the step board 1a coming out of the comb board 2 after the reference step is marked with, for example, red chalk. Step 1 in which the tread plate 1a is marked with the red chalk in this way is Step 1 that is first subjected to abnormality detection.

  It is confirmed whether or not the tread board 1a of step 1 coming out from the comb plate 2 in sequence including the first step 1 hits the lower end portion 7a of the detection plate 7. When step 1 hits the lower end 7a of the detection plate 7, the lower end 7a of the detection plate 7 bends. At this time, for example, an abnormal noise such as “crisp” or “crisp” may occur. The operator who performs the step abnormality detection work visually checks whether the lower end portion 7a of the detection plate 7 is bent and checks whether abnormal noise has occurred. Step 1 having the tread 1a with the detection plate 7 bent, or step 1 having the tread 1a in which an abnormal noise is generated in combination, is a step 1 in which the tread 1a is lifted from the step body 1b to cause an abnormality. To be judged. The worker marks the step 1 where the abnormality has occurred with, for example, white chalk.

  When the step 1 having the step board 1a marked with the red chalk comes out from the comb board 2 as the passenger conveyor is driven, the step abnormality detection work is finished.

  When the operator confirms that the step 1 having the step board 1a in which the abnormality is detected as a result of the step abnormality detection work by the mark of the white chalk attached to the step board 1a, the operator changes to the step 1 Check the unique serial number (previously assigned) and replace with normal step 1.

  According to the step abnormality detection device and the step abnormality detection method according to the present embodiment configured as described above, there is no influence of foreign matters such as dust accumulated on the demarcation cleat provided on the side portion of Step 1. It is possible to detect the floating of the tread board 1a from the step body 1b. Thereby, it is possible to obtain excellent detection accuracy of the tread 1a from the step body 1b.

  Further, since the fixing portions 3 and 4 including the stud bolts 10 and 11 are fixed to the comb plate 2 by utilizing the screw holes 2a and 2b formed in the comb plate 2, no special member is required. The fixing portions 3 and 4 can be easily and firmly attached to the comb plate 2.

  Further, since the detection plate 7 is made of a transparent plate, the operator can visually confirm the floating detection portion of the step board 1a in step 1 while watching the movement in step 1. Thereby, the precision of the abnormality detection of step 1 can be improved.

  Further, since the detection plate 7 is formed of a corrugated plate, even when the detection plate 7 is bent in contact with the step plate 1a of the step 1 where an abnormality has occurred, the elasticity of the corrugated plate after passing through the step plate 1a. The shape can be quickly restored to cope with the abnormality detection of the tread board 1a in the next step 1.

  Further, the screws 20 and 21 for integrally fastening the reinforcing plate 9, the detection plate 7 and the back plate 8 are moved up and down in the elongated holes 5b1 and 6b1 of the standing portions 5b and 6b of the brackets 5 and 6. Thus, the position of the lower end portion 7a of the detection plate 7 is set to a position that forms an allowable value that serves as a standard for detecting an abnormality in Step 1, that is, a position that forms a 1 mm interval with the tread plate 1a. In addition, the detection plate 7 can be easily positioned.

  In addition, the reinforcing plate 9 is provided with a marker made up of a black portion 9a and a yellow portion 9b, and a warning plate 17 is held on the upper end portion of the detection plate 7, so that an abnormality detection operation in step 1 is in progress. This can be reliably notified to passengers and the like around the passenger conveyor.

  In the above-described embodiment, the fixing bolts 3 and 4 provided on one side and the other side of the comb plate 2 are stud bolts 10 that are screwed into the screw holes 2a and 2b formed in the comb plate 2. However, the present invention is not limited to the configuration in which the fixing portions 3 and 4 include the stud bolts 10 and 11 as described above.

  For example, the fixing portions 3 and 4 are configured by magnet stands that are disposed on one side and the other side of the comb plate 2 and have magnets attached to the surface of the comb plate 2 by a strong magnetic force at the bottom, and these magnet stands. The brackets 5 and 6 described above may be held.

  Further, although the detection plate 7 is made of a transparent plate, the detection plate 7 may be made of a synthetic resin plate that is not transparent.

  The attention sign formed on the reinforcing plate 9 is composed of a combination of the black portion 9a and the yellow portion 9b, but may be a combination of other colors, or may be formed by character display or picture display. . The same applies to the attention sign on the attention calling plate 17 held at the upper end of the back plate 8.

  The configuration of each unit is not limited to the illustrated embodiment, and various modifications can be made without departing from the gist of the present invention.

  1. Step, 1a ... Tread, 1b ... Step body, 1c ... Lifting amount, 1d ... Welded part, ... Comb plate, 2a, 2b ... Screw hole, 3, 4, ... Fixing part, ··· Bracket, 5a ··· Extension portion, 5a1 ··· Long hole, 5b ··· Standing portion, 5b1 ··· Long hole, 6 · · Bracket, 6a · · Extension portion, 6a1 · · · Slot, 6b ··· Standing portion, 6b1 · · Elongated hole, 7 · · Detection plate, 7a · · Lower end portion · · · Back plate, 9 · · Reinforcement plate, 9a · · Black portion, 9b · · · Yellow portion, 10, 11 .. Stud bolt, 12, 13 .. Screw, 14, 15 .. Washer, 17 .. Warning plate, 17 a .. Black part, 17 b .. Yellow part, 20, 21 .. Screw, 22, 23.・ Washer

Claims (5)

A step abnormality detection device for a passenger conveyor that detects the lift of a step tread from a step body,
A fixing portion fixed to each of one side and the other side in the left-right direction perpendicular to the moving direction of the step of the comb plate disposed at the entrance / exit,
A bracket held by each of the fixing parts;
It extends in the left-right direction perpendicular to the moving direction of the step and is attached to the bracket, and its lower end is disposed with a predetermined dimension with respect to the step board of the step, and detects the rise of the step board from the step body. A passenger board step abnormality detection device comprising a detection plate. The step abnormality detection device for a passenger conveyor according to claim 1,
The fixing portion includes a stud bolt that holds the bracket by screwing into a screw hole into which a screw that fastens the comb plate to a frame is screwed. A step abnormality detection device for a passenger conveyor according to claim 2,
The bracket is
An extending portion having an elongated hole and extending in the moving direction of the step;
A standing part that is provided in a continuous manner with the extended part and has a long hole;
The elongated hole of the extending portion is provided in a shape extending in the moving direction of the step,
The elongate hole of the said standing part is provided in the shape extended in the up-down direction, The step abnormality detection apparatus of the passenger conveyor characterized by the above-mentioned. A step abnormality detection device for a passenger conveyor according to claim 3,
A back plate extending in the left-right direction orthogonal to the moving direction of the step and disposed on the back side of the detection plate;
A reinforcing plate extending in the left-right direction orthogonal to the moving direction of the step and disposed on the front side of the detection plate;
The detection plate and the back plate are disposed on the back side of the standing portion of the bracket, and the reinforcing plate is disposed on the front side of the standing portion of the bracket,
The step abnormality detection device for a passenger conveyor, wherein the reinforcing plate, the detection plate, and the back plate are integrally held by the standing portion of the bracket. A step abnormality detection method for a passenger conveyor that detects the lift of a step tread from a step body,
Fixing a fixing part to each of one side and the other side in the left-right direction orthogonal to the moving direction of the step of the comb plate disposed at the entrance,
Holding a bracket on each of the fixed parts,
Attach a detection plate that detects the lifting of the tread from the step body to the bracket so that the lower end portion is arranged with a predetermined dimension with respect to the tread of the step,
A passenger conveyor step abnormality detection method, wherein the passenger conveyor is driven so that the step moves in a direction away from the comb plate.