JP2005298075A - Renewal method of passenger conveyor and guide rail supporting unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a renewal method of a passenger conveyor capable of facilitating mounting work of devices and members mounted on a truss while achieving reduction of a working period and keeping strength of the existing truss. <P>SOLUTION: This renewal method is provided with a process for removing a part mounted in the truss 1 of the existing passenger conveyor, a process for providing a positioning mark for the truss 1 from which the part is removed, and a process for preparing a guide rail supporting unit 11 wherein a member for supporting right and left guide rails is integrally formed. The guide rail supporting unit 11 is provided with a left guide rail supporting unit 12 for supporting the left guide rail, a right guide rail supporting unit 13 for supporting the right guide rail, and a connecting rod member 14 for connecting and fixing the left guide rail supporting unit and the right guide rail supporting unit. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a renewal method for passenger conveyors such as escalators and moving walkways, and a guide rail support unit used in the renewal method.

  When passenger conveyors become obsolete and need to be repaired or refurbished, parts that are normally attached to existing trusses are maximally used. Therefore, when replacing parts, the same parts as those used in the existing truss are newly attached. Even if the parts are not in stock, they are processed to reproduce the parts and attached as they were.

  There are many parts whose reproducible processing costs are higher than the unit price of the latest parts that are in stock but lacking compatibility. Therefore, the cost of repair and refurbishment that replaces parts has increased significantly.

  In addition, the guide rail that guides the running of the step rollers of the step was replaced only when the fatigued portion was cracked, strained, etc. due to fatigue due to long-term use. . Therefore, although safety can be maintained as it is, no further improvement has been made by repair or renovation.

  As described above, in the repair and refurbishment of the conventional passenger conveyor, the same parts as the existing parts are newly created without diverting the standard parts currently in use. No progress has been made in safety.

  Regarding a method for repairing a passenger conveyor, Patent Document 1 proposes a method in which parts are removed from an existing truss and a new truss is accommodated in the existing truss. However, in the method described in Patent Document 1, a space for a new truss is secured by cutting and removing the lateral beam portion of the existing truss and using the existing truss as a simple outer box. If the cross beam of the existing truss is cut in this way, the strength of the existing truss before the renovation is not maintained, and the existing truss before the renovation cannot be used, so the new truss will be large. .

  Further, Patent Document 2 discloses a method for repairing an existing truss without cutting and removing the existing truss as in the method disclosed in Patent Document 1, with a new unit on the outward side and a new unit on the return side. Discloses a method of attaching a new unit divided into two to an existing truss.

  In the refurbishment method disclosed in Patent Document 2, parts replacement is performed in a state where the strength of the truss is maintained. After the forward-side new unit and the return-side new unit divided into two parts in the upper and lower directions are carried into the existing truss. Therefore, it was necessary to perform the assembly work in the existing truss. In addition, the left and right guide rails attached to the outward path side new unit and the return side new unit are adjusted so that the distance between the left and right guide rails of the steps that are supported by the guide rail and circulate endlessly is adjusted. It has been necessary to measure the forward path side guide rail 21, the return path side rear wheel guide rail 22, and the return path side front wheel guide rail 23 and adjust the interval. Therefore, the repair work time could not be shortened sufficiently.

In addition, in the repair method disclosed in Patent Document 2, although the newly installed member is unitized, the forward-side new unit and the return-side new unit are divided into two vertically, thus reducing the number of parts. And simplification of parts installation work was not enough.
Japanese Patent Publication No.63-37031 JP 2002-193576 A

  The present invention advantageously solves the above-mentioned problems, increases safety for an aging passenger conveyor, saves energy, modernizes the design and efficiently applies the latest technology. In renewal that can be performed, considering the safety during the work period, the work period was shortened without involving high temperature work such as welding, and the strength of the existing truss was maintained and attached to the truss An object of the present invention is to provide a passenger conveyor renewal method capable of simplifying the operation of attaching each device and member together with its advantageous guide rail support unit.

  The present invention includes a step of removing a part attached to a truss of an existing passenger conveyor, a step of providing a mark for alignment with respect to the truss from which the part has been removed, and a member that supports left and right guide rails. And a step of preparing a guide rail support unit in which the guide rail support unit is integrated, and a step of positioning the guide rail support unit in accordance with a mark provided on the truss from which the component has been removed, and attaching the guide rail support unit to the truss. This is a method for renewing a passenger conveyor.

  The present invention also includes a left guide rail support unit that supports the left guide rail, a right guide rail support unit that supports the right guide rail, and the left guide rail support unit and the right guide rail support unit that are connected and fixed. It is a guide rail support unit of a passenger conveyor provided with the connecting member to perform.

  According to the renewal method of the passenger conveyor of the present invention, since the guide rail support unit that integrates the members that support the left and right guide rails is used, the alignment operation of the guide rails is remarkably simplified, and the work efficiency is improved. Improvements can be made.

  FIG. 1 is a side view showing an entire escalator truss 1 to which an embodiment of the renewal method of the present invention is applied. FIG. 2 is a cross-sectional view taken along the line AA of FIG. In FIG. 1, after removing the components attached to the truss 1, a plurality of guide rails are provided in the intermediate portion 1 c between the upper floor getting on / off portion 1 a and the lower floor getting on / off portion 1 b of the truss 1. The truss after the renewal to which the support unit 11 is attached is shown. As will be described later, the guide rail support unit 11 is an integrated member that supports the left and right guide rails, and is fastened and fixed to the vertical beam member 2 and the horizontal beam member 3 constituting the truss 1 by fastening means. Has been.

  As shown in the sectional view of FIG. 2, the guide rail support unit 11 is a pair of left and right guide rail supports that support a plurality of guide rails on the forward side and the return side, that is, the left guide rail support 12 and the right guide. A connecting rod 14 that is spanned between the rail support 13 and the left guide rail support 12 and the right guide rail support 13 to connect and fix the left guide rail support 12 and the right guide rail support 13; An attachment member 15 for attaching the left guide rail support 12 to the longitudinal beam member 2 and an attachment member 16 for attaching the right guide rail support to the longitudinal beam member 2 are provided.

  The left guide rail support 12 and the connecting bar 14 are fixed by, for example, welding. Similarly, the right guide rail support 13 and the connecting bar 14 are fixed by, for example, welding. The left guide rail support 12 and the mounting member 15 are fastened and fixed by a fastener 17 made of bolts and nuts, and the right guide rail support 13 and the mounting member 16 are made of bolts and nuts. The fastener 18 is fastened and fixed.

  In this embodiment, the escalator is renewed in the following manner.

  First, various parts attached in the truss 1 of the existing escalator are removed. And the mark for aligning with the guide rail support unit 11 with respect to the truss 1 from which components were removed is provided. Since the alignment is usually performed by matching the center position in the width direction of the truss 1 and the center position in the width direction of the guide rail support unit 11, the mark provided on the truss is formed by centering the truss.

  Separately, the guide rail support unit 11 is assembled and prepared. In this assembly, the left and right guide rail supports 12 and 13 and the connecting bar 14 are joined by welding, and the left and right guide rail supports 12 and 13 and the attachment members 15 and 16 are fastened by the fasteners 17 and 18. An integrated guide rail support unit 11 is prepared by fixing.

  It is advantageous to form marks on the guide rail support unit 11 for alignment with the truss 1. For example, as shown in FIG. 2, a ruled line L may be drawn at the center position in the width direction of the connecting bar 14.

  Next, the assembled guide rail support unit 11 is attached to the existing truss 1. At the time of this attachment, the guide rail support unit is aligned so that the mark of the center position in the width direction of the truss 1 by the centering operation and the scribe line L formed on the connecting rod 14 of the guide rail support unit 11 are aligned. 11 is arranged.

  Next, the guide rail support unit is fastened with a nut through a mounting bolt 19 to a through hole provided in the cross beam member 3 of the truss 1 and a through hole formed in the connecting rod 14 of the guide rail support unit 11. 11 is attached and fixed to one transverse beam member 3 of the existing truss. Moreover, it fastens with the nut 20b through the attachment bolt 20a to the through-hole provided in the vertical beam member 2 of the existing truss 1, and the through-hole formed in the attachment members 15 and 16 of the guide rail support unit 11. Thus, the guide rail support unit 11 is attached and fixed to one longitudinal beam member 2 of the existing truss.

  According to the renewal method of the present embodiment, since the guide rail support unit 11 in which the members that support the left and right guide rails are integrated is used, alignment when the guide rail support unit 11 is attached to the truss 1 is performed. Since the center position of the truss 1 and the center position of the guide rail support unit 11 only need to be aligned, the alignment operation is simplified, and the renewal operation time can be greatly reduced as compared with the conventional case.

  Further, by using the holes already provided in the existing truss 1 and attaching the guide rail support unit 11 to the existing truss 1 without newly processing, the renewal work time can be further shortened. it can.

  Furthermore, the renewal method of this embodiment is a guide rail support that can easily measure the guide rail width even when the step width and the guide rail width for guiding the step are different before and after the renewal. Use of the unit 11 is preferable because the assembly time can be reduced and the work content can be simplified.

  Furthermore, in the renewal method of the embodiment, since both the left guide rail support 12 and the right guide rail support 13 are integrally attached to both the forward guide rail and the return guide rail, Unlike the technology, the work of connecting the new unit on the outward path side and the new unit on the return path side is unnecessary, and the working time can be further shortened.

  FIG. 3 shows the left side guide rail support 12 of the guide rail support unit 11 with the forward path side guide rail 21, the return path side rear wheel guide rail 22 and the return path side front wheel guide rail 23 attached thereto. Yes. The left guide rail support 12 and the right guide rail support 13 for supporting a plurality of left and right rails are arranged at positions corresponding to the width of the step rollers of the steps used after the renewal, A notch is formed so that the rear wheel guide rail 22 and the return road front wheel guide rail 23 are attached. Accordingly, the forward-side guide rail 21, the return-side rear-wheel guide rail 22, and the return-side front-wheel guide rail 23 are brought into contact with the cutout portions of the left-side guide rail support 12 and the right-side guide rail support 13, respectively. Since the width of each guide rail can be set to a predetermined dimension simply by attaching and fixing, the work of adjusting the width of the guide rail during the renewal work can be omitted.

  Also, the left guide rail support 12 shown in FIG. 3 has adjusting means 24 and 25 for adjusting the distance between the left and right guide rails. The adjusting means 24 and 25 shown in FIG. 3 are arranged such that, for the guide rail 23, the adjusting plate 24a contacting the guide rail 23, the bolt 24b attached through the thickness direction of the adjusting plate 24a, and the bolt 24b An oblong through hole (not shown) extending in the horizontal direction formed in the left guide rail support 12 for passing through, and a bolt 24b threaded through the oval through hole on the back surface of the left rail support. The adjustment plate 24a is fixed to be movable in the horizontal direction. By regulating the position of the guide rail 23 with the adjustment plate 24a, the distance between the left and right guide rails can be finely adjusted. The adjustment means of the guide rail 22 is the same.

  The guide rail support unit 11 used in the embodiment of the present invention is attached to the truss 1 by being fastened and fixed to the vertical beam member 2 and the horizontal beam member 3 of the truss 1 with bolts and nuts as described above. It is done. Fastening members such as bolts and nuts necessary for mounting the guide rail support unit 11 are classified in advance for each mounting position before renewal work, and provided near the mounting position of the guide rail support unit 11. This eliminates the need to bring the bolts to be used from other locations, making renewal work easier. Therefore, as shown in FIG. 4 and FIG. 5, it is advantageous to attach the bags 31 to 35 containing the fastening members divided for each attachment position to the guide rail support unit 11 with an adhesive tape or the like. In addition, if remarks and instructions are stored together in the bags 31 to 35, the renewal work can be performed efficiently. The fastening member can be temporarily fixed to the member to be fastened in addition to being accommodated in the bags 31 to 35 shown in FIGS.

  The guide rail may be attached to the guide rail support unit 11 after the guide rail support unit 11 is installed in the truss 1, but it is attached to the guide rail support unit 11 in advance before the renewal work. The guide rail support unit 11 to which the guide rail is attached may be attached to the truss 1. In particular, in the upper floor getting on / off portion 1a and the lower floor getting on / off portion 1b of the truss 1, a plurality of left and right forward guide rails are integrated into a guide rail support unit in which members for supporting the left and right guide rails are integrated. Incorporating in advance is advantageous because it eliminates the work of installing guide rails in the field where the existing truss is provided.

  6-8 is a figure which shows the place where the several some outward guide rails 51-54 are attached to the guide rail support unit 41 attached to the boarding / alighting part 1a of the upper floor side of the truss 1. FIG. Is a plan view, FIG. 7 is a right side view thereof, and FIG. 8 is a partial sectional view of the vicinity of the right end portion. 6-8, the guide rail support unit 41 is provided in the vicinity of both ends in the width direction of the truss, and the connecting bar 42 and the connection angle 43 provided in the vicinity of both ends of the truss in the width direction. And a pair of left and right guide rail supports 44 connected and fixed. When the escalator is renewed, the left side guide rails 51 and 53 are attached to the left side guide rail support 44, and the right side guide rails 52 and 54 are attached to the right side guide rail support 44. Further, a ruled line L indicating the center position in the width direction is drawn on at least one of the connecting bar 42 and the connecting angle 43.

  When the renewal work is performed, the guide rail support unit 41 to which the plurality of forward-side guide rails 51 to 54 are attached in this way is provided with a mark formed at the center position in the width direction by the centering work of the truss 1 and a connecting bar. 42 and the ruled line L formed on at least one of the connecting angles 43 are aligned and attached to the truss 1. Thus, it is possible to eliminate the work of installing the guide rails on the site where the existing truss is provided, so that the renewal work can be performed more efficiently.

  9 and 10 are views showing a plurality of forward-side guide rails 71 to 74 attached to the guide rail support unit 61 attached to the lower floor entrance / exit portion 1b of the truss 1. 9 is a plan view, FIG. 10 is a right side view thereof, and FIG. 8 is a partial sectional view in the vicinity of the right end portion. 9 and 10, the guide rail support unit 61 includes a connecting bar 62 and a connecting angle 63 provided across the width direction of the truss, and provided in the vicinity of both ends of the truss in the width direction. 63 and a pair of left and right guide rail supports 64 connected and fixed. When the escalator is renewed, the left side guide rails 71 and 73 are attached to the left side guide rail support 44, and the right side guide rails 72 and 74 are attached to the right side guide rail support 44. Further, a ruled line L indicating the center position in the width direction is drawn on at least one of the connecting bar 62 and the connecting angle 63.

  When the renewal work is performed, the guide rail support unit 61 to which the plurality of forward-side guide rails 71 to 74 are attached in this way is provided with a mark formed at the center position in the width direction by the centering work of the truss 1 and a connecting bar. A ruled line L formed on at least one of 62 and 63 is aligned and attached to the truss 1. Thus, it is possible to eliminate the work of installing the guide rails on the site where the existing truss is provided, so that the renewal work can be performed more efficiently.

  From the existing truss 1, the existing parts were removed in advance, leaving the vertical beam member 2 and the horizontal beam member 3, and the existing truss 1 was centered. The guide rail support unit 11 is dimensioned in advance with a dedicated jig or the like, and the left and right guide rail supports 12 and 13 and the connecting bar 14 are welded and integrated. A ruled line L was drawn at the center position in the width direction of the connecting bar 14.

  When renewing the escalator, it is only necessary to align the mark provided at the center in the width direction of the existing truss 1 with the scribe line L drawn on the connecting rod 14 of the guide rail support unit 11. The left and right guide rail supports 12 and 13 do not need to be dimensioned from the center of the truss as in the conventional repair method, and can be easily incorporated into the existing truss 1.

  As for the attachment of the guide rails 21, 22 and 23, the notch formed in advance in the guide rail support unit 11 is formed at a position in consideration of the interval in the width direction of the guide rails 21, 22 and 23 to be attached. Therefore, the guide rails 21, 22 and 23 can be made to have a predetermined guide rail width by simply attaching them to the notch portion of the guide rail support unit 11 as they are.

  The guide rail support unit 41 attached to the upper floor getting on / off portion 1a and the guide rail support unit 61 attached to the lower floor getting on / off portion 1b are also dimensioned in advance, so that they are attached to the existing truss 1 By aligning the mark provided at the center position in the width direction of the existing truss 1 with the crease line at the center position in the width direction of the guide rail support units 41 and 61, a predetermined dimension position can be aligned.

  This eliminates the time for assembling each member that supports the guide rail and collecting parts on site, so that the assembly time is significantly reduced compared to the conventional method, and the renewal work time is shortened.

  In addition, since the guide rail support units 11, 41, 61 in which the members that support the left and right guide rails are integrated are used, it is possible to determine which member is a number of members at the site of the existing truss to be renewed. Because no time is required for processing, the space pace for placing parts at the work site is significantly reduced.

  As described above, the safety of the escalator is increased by renewal while ensuring the strength of the existing truss 1, and the renewal work can be facilitated, thereby shortening the construction period.

It is a side view which shows the whole of the truss 1 of the escalator which gave the renewal method of this invention. It is AA sectional drawing of FIG. It is explanatory drawing which shows the place which attached the guide rail to the guide rail support unit. It is explanatory drawing which shows the place which attached the bag which accommodated the fastening member to the guide rail support unit. It is explanatory drawing which shows the place which attached the bag which accommodated the fastening member to the guide rail support unit. It is. It is a top view which shows the guide rail support unit attached to the boarding part on the upper floor side of the truss. FIG. 7 is a right side view of FIG. 6. It is a fragmentary sectional view of FIG. It is a top view which shows the guide rail support unit attached to the boarding part on the lower floor side of the truss. FIG. 10 is a partial cross-sectional view of FIG. 9.

Explanation of symbols

1 truss 11 guide rail support unit 12 left guide rail support (left guide rail support unit)
13 Right guide rail support (right guide rail support unit)
14 Connecting rod (connecting member)
21, 22, 23 Guide rails 24, 25 Adjustment means 31, 32, 33, 34, 35 Bag CL Center line L Ruled line

Claims (8)

Removing the parts installed in the truss of the existing passenger conveyor;
Providing a mark for alignment on the truss from which the part has been removed;
Preparing a guide rail support unit in which members for supporting the left and right guide rails are integrated;
Positioning the guide rail support unit in accordance with a mark provided on the truss from which the component has been removed, and attaching the guide rail support unit to the truss;
A method for renewing a passenger conveyor, comprising:   The guide rail support unit connects the left guide rail support unit that supports the left guide rail, the right guide rail support unit that supports the right guide rail, and the left guide rail support unit and the right guide rail support unit. The renewal method of the passenger conveyor according to claim 1, further comprising a connecting member to be fixed.   The renewal method for a passenger conveyor according to claim 1 or 2, wherein a mark for positioning with the truss is formed on the guide rail support unit.   The method for renewing a passenger conveyor according to any one of claims 1 to 3, wherein the guide rail support unit is attached to the truss using holes provided in the constituent members of the truss.   5. The apparatus according to claim 1, wherein at least one of the left guide rail support unit and the right guide rail support unit includes an adjusting unit that adjusts a distance between the left and right guide rails. Renewal method of passenger conveyor as described in 1.   The renewal method for a passenger conveyor according to any one of claims 1 to 5, wherein a fastening member for attaching the guide rail support unit to the truss is attached in advance to the guide rail support unit.   The method for renewing a passenger conveyor according to any one of claims 1 to 6, wherein the guide rail is attached and fixed to the guide rail support unit prior to attaching the guide rail support unit to the truss.   A left guide rail support unit for supporting the left guide rail; a right guide rail support unit for supporting the right guide rail; and a connecting member for connecting and fixing the left guide rail support unit and the right guide rail support unit. A guide rail support unit for a passenger conveyor.

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