JP5501296B2 - Repair method for passenger conveyor boarding / exiting floors - Google Patents

Description

  The present invention relates to passenger conveyors such as escalators and moving walkways, and more particularly to a method for repairing a boarding / exiting floor provided at the entrance / exit of a passenger conveyor and a boarding / exiting floor for a new passenger conveyor.

In general, passenger conveyors stand on the frame along the moving direction of the treads that are connected endlessly between boarding and exiting floors provided at both ends in the longitudinal direction of the frame installed in the building structure. It is composed of a handrail or the like that is driven in synchronism with the treads provided on the installed balustrade.
The boarding / exiting floor generally includes a decorative plate having an uneven surface or the like for forming a tread surface, and a back plate provided on the back surface for fixing the decorative plate.

By the way, a structure in which the decorative plate is directly fixed to the back plate by welding or a structure in which the decorative plate is fixed to the back plate with screws welded to the decorative plate is a common technique.
Passenger conveyor users usually walk on boarding and landing floors while pulling suitcases, depending on the user and in some cases, and the decorative boards that form the floors of boarding and exiting floors are locally repeated by walking. Phenomenon of peeling off from the back plate due to load or the like is observed.

In such cases, it has been common practice to hit a countersunk plate or rivet on the surface of the decorative plate to prevent partial lifting. If it cannot be cut, the boarding / exiting floor itself is replaced with a new one.
Although the method as shown in patent document 1 is proposed about replacement | exchange of a boarding / alighting floor, about the repair method etc., it is not disclosed.

Japanese Utility Model Publication No. 1-76888

  The conventional boarding / exiting floor has a structure in which the decorative plate and the back plate are fixed to each other by welding or screwing the decorative plate to the back plate. Otherwise, there is a concern that a gap is generated between the decorative plate and the back plate, and the decorative plate is warped by a local repeated load caused by walking of a pedestrian or the like, and the decorative plate is lifted.

In addition, the fixing screws are generally welded to the decorative board. Similarly, when the load from the pedestrian is repeatedly applied, there is a concern that the welded part of this screw will be fatigued and the decorative board will rise. Is done.
Further, in the case where the decorative plate in the prior art described in Patent Document 1 described above is welded and fixed to the back plate, the welded portion is fatigued and peeled off when subjected to repeated loads from a pedestrian. There is concern about the phenomenon of the decorative plate floating.

  For this reason, in the past, when the decorative board and the back board of the existing boarding / exiting floor are separated and the decorative board is lifted, the lifted part is fixed with a large number of fixing screws to prevent the decorative board from rising, and temporary repairs are made. However, a large number of fixing screws are required, and this requires a large number of repair steps.

An object of the present invention is to provide a method for repairing a passenger floor of a passenger conveyor that can reliably repair the passenger floor to a normal form without using a large number of fixing screws.
Another object of the present invention is to provide a new passenger conveyor boarding / exiting floor that can prevent the decorative board from floating up.

  The first feature of the present invention is that, when the decorative board of the getting-on / off floor is lifted from the back board, a fixing screw mounting through hole is formed in the decorative board and the back board at the raised portion of the decorative board, and the mounting through hole The decorative board is filled with the filler having adhesiveness through the through hole, and then the fixing board and the back board are fixed integrally by inserting a fixing screw into the mounting through hole. It is to repair when it comes up from the back plate.

  The second feature of the present invention is that a through-hole formed in the back plate is filled with an adhesive filler on the abutting surface of the decorative plate and the back plate, and a fixing screw planted and fixed on the decorative plate is formed on the back plate. That is, the decorative plate and the back plate are fastened and fixed with nuts.

  According to the present invention, when repairing the lift of the decorative board of the passenger conveyor boarding / exiting floor, the adhesive filler is sealed from the fixing screw mounting through hole for repair to the lifted part between the decorative board and the back board, and By fixing the decorative plate and the back plate integrally with the fixing screw for repair using the fixing screw mounting through hole for repair, the number of screws necessary for fixing can be reduced.

  In addition, according to the present invention, when a new boarding / exiting floor is manufactured, a floating phenomenon can be prevented in advance by enclosing an adhesive filler in the manufacturing process and fixing the decorative plate and the back plate integrally. You can get on and off the floor.

It is a block diagram which shows the whole structure of an escalator. It is a perspective view which shows the structure of the getting on / off floor of an escalator. It is a perspective view which shows the single body of the boarding / alighting floor of an escalator. It is sectional drawing before fixing the fixing part of the boarding / alighting floor in the cross section AA of FIG. It is sectional drawing after fixation of the fixing part of the boarding / alighting floor in the cross section AA of FIG. It is a perspective view which shows the decorative board floating of the boarding / alighting floor of an escalator. It is an expansion perspective view which shows the decorative board floating of the boarding / alighting floor of an escalator. It is a top view which shows the boarding / alighting floor decorative board of an escalator. FIG. 8 is a cross-sectional view showing a phenomenon in which a decorative board is lifted in a cross section BB in FIG. 7. It is sectional drawing which shows the fixing method by welding of the decorative board of an escalator. It is sectional drawing which shows the lifting phenomenon in the fixing method by welding of the decorative board of an escalator. It is sectional drawing which shows another floating phenomenon in the fixing method by welding of the decorative board of an escalator. It is sectional drawing when an example of the repair method of the boarding / alighting floor of the escalator which becomes one Example of this invention is shown, and a through-hole is formed with a drill. It is sectional drawing when an example of the repair method of the boarding / alighting floor of the escalator which becomes one Example of this invention is shown, and the accommodating part of a countersunk screw is formed with a drill. It is sectional drawing when showing an example of the repair method of the boarding / alighting floor of the escalator which becomes one Example of this invention, and sticking the blocking material which block | closes a through-hole. It is sectional drawing at the time of preparing the adhesive agent which shows an example of the repair method of the boarding / alighting floor of the escalator which becomes one Example of this invention, and fills a through-hole. It is sectional drawing when an example of the repair method of the boarding / alighting floor of the escalator which becomes one Example of this invention is shown, and the adhesive agent is filled into the through-hole. It is sectional drawing when an example of the repair method of the boarding / alighting floor of the escalator which becomes one Example of this invention is shown, and it has finished filling the through hole with the adhesive agent. It is sectional drawing when an example of the repair method of the boarding / alighting floor of the escalator which becomes one Example of this invention is shown, and the decorative board is adhere | attached with the weight. It is sectional drawing of the state which showed an example of the repair method of the boarding / alighting floor of the escalator which becomes one Example of this invention, and fixed the decorative board and the back board through the countersunk | screw through the through-hole. It is a perspective view which shows the structure of the boarding / alighting floor of the escalator which becomes another Example of this invention.

Hereinafter, the present invention will be described with reference to the drawings. First, the configuration of a passenger conveyor targeted by the present invention will be described with reference to FIGS. 1 to 5.
The present embodiment relates to an escalator which is a type of passenger conveyor, and the overall configuration is as shown in FIG.

In this escalator device 1, a large number of treads 2 are connected endlessly and circulated to transport passengers between the upper floor 3 and the lower floor 4.
Further, the escalator device 1 is located on both sides in the width direction of the footboard 2, a frame body 5 installed in the building structure, a handrail 6 provided for passenger safety and moving in synchronization with the footboard 2. A balustrade 7 is provided that supports the handrail 6 and is erected along the longitudinal direction of the frame body 5 (along the moving direction of the tread plate 2).
The width direction of the getting-on / off floors 8 and 9 refers to the longitudinal direction of the getting-on / off floors 8 and 9, in other words, the direction perpendicular to the plane of FIG.

The boarding / exiting floors 8 and 9, the handrail 6, the balustrade 7 and the like are supported by the frame 5, and the building-side boarding gates (specifically, the upper floor boarding / exiting floors 8 and The lower floor getting on and off 9) is fixed.
The frame body 5 of the escalator device 1 includes an upper floor getting on / off floor 8 and a lower floor getting on / off floor 9 on which a user gets on and off, and an inclined portion 10 that connects them. Further, a drive machine 12 is installed in the upper floor machine room 11 in the upper floor getting on / off floor 8 to drive the drive sprocket 13.

  On the other hand, a driven sprocket 15 is installed in the lower floor machine room 14 in the lower floor getting-on / off floor 9, and an endless chain 16 is wound between the upper and lower drive sprockets 13 and the driven sprocket 14 to drive continuously. It is supposed to be.

  An axle 17 is connected to the chain 16 at equal intervals, and each tread (step) 2 is attached to the axle 17.

Next, FIG. 2 is a perspective view showing a configuration of the boarding / alighting floor 9 of the lower floor 4 among the boarding / lowering floors 8 and 9, and the boarding / alighting floor 9 is flush with the lower floor 4 on the building side. Constructing a lane for users who get on and off the passenger conveyor to pass through, forming a tread on the surface of the getting on and off floor 9, and unevenness considering slipper to prevent the user from falling What gave the design of shape is common.
The getting-on / off floor 9 is also opened and closed during maintenance work of the lower-floor machine room, and is also used for entry and exit of maintenance personnel.

  FIG. 3 shows a single structure of the boarding / exiting floor 9, and the boarding / exiting floor 9 has a decorative board 18 with a concave and convex design that forms a tread on the surface, and a back board 19 provided on the back surface for fixing the decorative board 18. The general boarding / alighting floor 9 is configured by fixing a decorative plate 18 on the upper surface of a back plate 19.

  4 and 5 will be described with reference to the cross section AA of FIG. 3, and FIG. 4 shows a state before the decorative board 18 and the back board 19 are integrated (fixed). FIG. 5 shows a state after the decorative plate 18 and the back plate 19 are integrated (fixed).

  A fixing screw 20 is planted and fixed on the back surface of the decorative plate 18 with a welded portion 20A, and a hole 21 for passing the fixing screw 20 is provided in one back plate 19. The decorative board 18 is placed on the upper surface of the back board 19 and the nut 22 is fastened, whereby the decorative board 18 and the back board 19 form an integrated boarding / exiting floor 9.

  Although the above is the structure of the escalator which is an example of a passenger conveyor, the background etc. from which this invention is requested | required are demonstrated next.

  6 and 7 schematically show the phenomenon that the decorative board 18 of the boarding / exiting floor 9 is lifted. A passenger conveyor user passes over the decorative board 18, and the decorative board 18 that forms the tread is shown in FIGS. Due to the repeated load 23 caused by the walking, the welded portion 20A of the fixing screw 20 is fatigued and the lift 24 as represented by the gap dimension g is generated on the decorative board 18.

  When the lift 24 is generated, the passenger conveyor user crawls and falls down, or the decorative board 18 moves up and down, giving the user discomfort, or using an impression that is not good for the design. There is a concern to the people.

  Further, when the decorative board 18 is viewed from the surface, as shown in FIG. 8, it is common to fix the fixing screws 20 at a plurality of locations with the welded portions 20A. However, as shown in FIG. The structural problem is that it is fixed to the back surface with the welded portion 20A and it is difficult to avoid fatigue peeling due to the repeated load 23. When peeling at one place, the vertical amplitude 25 due to the rising 24 of the decorative board 18 becomes large, and therefore the chain Needless to say, there is a high possibility that the welded portion 20A of the surrounding fixing screw 20 is peeled off.

  The above is a description of the floating phenomenon of the decorative plate 18 relating to the structure in which the general decorative plate 18 and the back plate 19 are fixed by the fixing screw 20. Next, the decorative plate 18 is lifted relating to the structure in which the decorative plate 18 is fixed by welding. The phenomenon will be described with reference to FIGS.

The structure shown in FIGS. 10 to 12 is such that the decorative plate 18 is directly welded by welding 26 in the hole 21 having a diameter D provided in the back plate 19 without subjecting the decorative plate 18 to hole processing or the like. .
However, as described above, similarly to the welded portion 20A of the fixing screw 20, due to the repeated load 23 caused by the walking of the passenger conveyor user, the welded portion 26 is fatigued and peeled off from the back plate 19 and the decorative plate 18 is lifted 24. Since the mechanism is the same, as described above, the passenger conveyor hits and falls when passing, or the decorative board 18 moves up and down, giving the user discomfort, and also on the design There is a problem that there is a concern to give users a negative impression.

  In addition, as shown in FIG. 12, even if the welded portion 26 of the decorative board 18 does not come off, the decorative board 18 positioned between the welded parts 26 has been confirmed to be lifted 24 due to repeated deformation or warping due to the load 23 or the like. The actual situation is that the same problem remains as the structure of the boarding / exiting floor having the decorative plate 18 and the back plate 19 together.

  These problems can be solved by replacing with a new boarding / exiting floor, or by cutting or etching the steel plate so that the decorative plate 18 and the back plate 19 have an integrated structure, but it is costly. However, it was not preferable in terms of weight, and it was difficult to say that it was an effective solution.

  Next, a repairing method for repairing the lift 24 generated on the decorative board 18 according to the embodiment of the present invention will be described. The decorative board 18 and the back board 19 shown in FIGS. This will be specifically described with reference to FIGS. 13 to 20 using a fixing structure.

  First, as shown in FIG. 13, the decorative plate 18 and the back plate 19 are removed from the boarding / exiting floor, and the diameter D is set so that the decorative plate 18 and the back plate 19 are penetrated by using a drill 28 at the raised portion 27 of the decorative plate 18. The through hole 29 is drilled to form a fixing screw through hole for repair. The through-hole 29 is formed to be slightly larger than the diameter of a fixing countersunk screw used for fixing the decorative plate 18 and the back plate 19 so that the countersunk screw can be inserted.

Next, as shown in FIG. 14, a conical accommodation hole serving as an accommodation portion in which the head of a countersunk screw to be used later is accommodated using a drill 30 having a larger drilling diameter than the drill 28 in the through hole 29 on the decorative plate 18 side. 31 through holes are formed as a whole to form countersunk screw mounting through holes. In this case, the storage hole 31 can be formed by pressing an electric drill against the through-hole 29 of the decorative plate two to three times by an operator.
Next, as shown in FIG. 15, a blocking material 32 is attached to the through hole 29 of the back plate 19. The closing member 32 has a function of preventing the leakage of the filler, which will be described later, and is constituted by a metal plate or a plastic plate on which an adhesive is spread. In some cases, a simple plugging agent 32 such as a gum tape can be used.

Next, as shown in FIG. 16, the piston 35 of the filler 34 is removed, the filler 33 is injected, and the piston is mounted again. Considering filling workability, it is appropriate to use a syringe like the filling device 34, but it is also possible to work with a press-fitting device or a bag-like one. In short, it is only necessary to use a filling machine with good workability on site.
Further, since the filler 33 is intended to bond the decorative plate 18 and the back plate 19, a general metal adhesive is used. The decorative plate 18 and the back plate 19 can be firmly bonded to each other.

Next, as shown in FIG. 17, the tip of the filler 34 is inserted into the storage hole 31, and the piston 35 is pushed into the gap 24 </ b> A between the decorative plate 18 and the back plate 19 as shown in FIG. 18.
Here, the filler 33 is filled from the housing hole 31 of the decorative board 18, but may be filled from the through hole 29 on the back board 19 side, and in this case, the closing member 32 is attached to the decorative board 18 side. Is.

  However, in this case, since the surface of the decorative board 18 has a concavo-convex shape, it is important that the closing member 32 has a structure in which the filler does not leak from the concavo-convex portion. For this purpose, a closing material 32 having a shape matching the unevenness of the decorative board 18 may be prepared.

  After filling with the filler, as shown in FIG. 19, the filler 33 is uniformly and extensively extended from the surface of the decorative plate 18 by pressing by the weight 36 or the operator himself, and then the closing member 32 is peeled off to remove the closing member 32. The filler in the portion of the through hole 29 is removed before it is dried and solidified.

Next, as shown in FIG. 20, a fixing flat head screw 37 is inserted from the decorative plate 18 side, and the nut 22 is fastened on the back plate 19 side to complete the repairing operation.
In addition, since the fixing countersunk screw 37 is on the surface of the decorative plate 18, it is more preferable to arrange it in the concave portion of the concave and convex pattern on the surface of the decorative plate 18 in consideration of design and user safety.

  The fixing countersunk screw 37 provided in the present embodiment has an injection function in which the mounting through-hole serves as an injection port for the filler 33, and the back of the decorative plate 18 until the filler 33 is solidified and bonded. The function of maintaining the adhesion of the plate 19 and the fixing function by the fixing countersunk screw 37 itself do not require a large number of fixing screws as in the case of repair only with conventional screw fixing, and can be reduced to the minimum necessary number. Is.

Further, since the filler 33 is present as a filler separately from the adhesive function between the decorative plate 18 and the back plate 19, the gap between the decorative plate 18 and the back plate 19 can be reduced as much as possible. It is further expected that the phenomenon of lifting will be suppressed.
The series of repair work has been described for an existing boarding / exiting floor, but can also be applied to the case of manufacturing a new boarding / exiting floor.

When a new boarding / exiting floor 9 is manufactured as shown in FIG. 21, a filler 33 having adhesiveness is applied to the back plate 19 in advance, and a decorative plate 18 is placed thereon, with a fixing screw 20 and a nut (not shown). By fixing with the configuration as shown in FIG. 5, it is possible to stably obtain the bonding effect of the decorative plate 18 and the back plate 19 without depending on the fastening force of a large number of fixing screws 20.
Moreover, although this embodiment demonstrated the escalator as an example, it can implement | achieve the same repair work also on passenger conveyors, such as a moving sidewalk, and can anticipate the same effect.

  DESCRIPTION OF SYMBOLS 1 ... Escalator device, 2 ... Step board (step), 3 ... Upper floor, 4 ... Lower floor, 5 ... Frame, 6 ... Hand rail, 7 ... Railing, 8 ... Upper floor getting on and off, 9 ... Lower floor getting on and off Floor: 10: Inclined part: 11: Upper floor machine room, 12: Drive machine, 13: Drive sprocket, 14: Lower floor machine room, 15: Driven sprocket, 16: Chain, 17: Axle, 18: Dressing plate, 19 DESCRIPTION OF SYMBOLS ... Back plate, 20 ... Fixing screw, 21 ... Hole, 22 ... Nut, 23 ... Repeat load, 24 ... Lifting, 25 ... Vertical amplitude, 26 ... Welding part, 27 ... Lifting part, 28 ... Drill, 29 ... Drilling, 30 DESCRIPTION OF SYMBOLS ... Drill, 31 ... Perforation, 32 ... Sealing material, 33 ... Filler, 34 ... Filler, 35 ... Piston, 36 ... Weight, 37 ... Countersunk flat screw.

Claims (5)

A frame installed in a building structure, a decorative board provided at both ends in the longitudinal direction of the frame, and a board having an uneven shape on its surface, and a boarding / exiting floor comprising a back board for fixing the decorative board, and these boarding / exiting floors In a passenger conveyor provided with a tread that is connected endlessly between the treads that circulates, a balustrade erected on the frame body along the direction of movement of the treads, and a handrail that is driven in synchronization with the treads ,
When the decorative board of the getting-on / off floor is lifted from the back board,
Forming through holes for attaching fixing screws to the decorative plate and the back plate at the raised portion of the decorative plate,
Filling the raised portion between the decorative plate and the back plate with a filler having adhesiveness through the mounting through-hole,
Passenger conveyor, wherein the decorative plate and the back plate are integrally fixed by inserting the fixing screw into the mounting through-hole to repair when the decorative plate is lifted from the back plate. How to repair a boarding / exiting floor.   2. The method for repairing a passenger conveyor boarding / exiting floor according to claim 1, wherein the through hole for mounting is formed through a through hole that penetrates the decorative plate and the back plate and through which the fixing screw is inserted, and then the decorative plate. A method for repairing a passenger conveyor boarding / exiting floor, wherein a hole for accommodating the head of the fixing screw is formed on the surface side of the passenger conveyor.   3. The method for repairing a passenger conveyor boarding / exiting floor according to claim 2, wherein the through hole is drilled with a first drill having a diameter larger than that of the fixing screw, and then the storage hole is formed with a diameter larger than that of the first drill. A method for repairing a passenger floor of a passenger conveyor, wherein the mounting through-hole is formed by drilling with a drill of No. 2.   4. The method for repairing a passenger conveyor boarding / exiting floor according to claim 2 or 3, wherein the storage hole in which the head of the fixing screw is stored is formed in a concave portion of an uneven portion formed on a surface of the decorative board. A method for repairing a passenger conveyor boarding / exiting floor.   The method for repairing a passenger conveyor boarding / exiting floor according to any one of claims 1 to 4, wherein the filler is a metal adhesive.

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