JP7164001B1 - Passenger Conveyor Handrail Holder and Method for Installing Passenger Conveyor Handrail Drive Sheave - Google Patents

Abstract

A method for installing a handrail holder and a handrail drive sheave that can improve the efficiency of maintenance work for a passenger conveyor is provided. A holder (11) includes a pair of holding plates (12) and an adjusting portion (13). The lateral width of each holding plate 12 is wider than the lateral width of the handrail of the passenger conveyor. A pair of holding plates 12 are provided parallel to each other with a gap in the vertical direction. The pair of holding plates 12 holds the handrail by sandwiching it between vertically spaced spaces. The adjustment unit 13 adjusts the strength of holding of the handrail by the pair of holding plates 12 by changing the distance between the pair of holding plates 12 . The holder 11 contacts the structure from one side in the longitudinal direction of the handrail, thereby restricting the movement of the handrail portion held by the pair of holding plates 12 to the other side of the structure. The structure faces the balustrade from a direction perpendicular to the longitudinal direction of the balustrade on the return path of the balustrade. [Selection drawing] Fig. 2

Description

The present disclosure relates to a method for installing passenger conveyor handrail retainers and drive sheaves for passenger conveyor handrails.

Patent Literature 1 discloses an example of a passenger conveyor. The passenger conveyor includes handrails and handrail drive sheaves. The drive sheave is installed in the bend of the handrail which is bent downward in the return path of the handrail.

Japanese Patent No. 6235074

In the maintenance work of passenger conveyors such as those disclosed in Patent Document 1, sometimes a drive sheave that has been removed once or a drive sheave that is newly installed is installed. Since the drive sheave is installed on the curved portion of the handrail, it is necessary to maintain the curved portion of the handrail so that the curved portion of the handrail does not stretch due to the weight of the handrail itself or the like during installation of the drive sheave. When a maintenance worker manually holds the handrail to maintain the curved portion, a worker who holds the handrail is required in addition to the worker who installs the drive sheave. Efficiency may decrease.

The present disclosure relates to solving such problems. The present disclosure provides a handrail retainer and handrail drive sheave installation method that allows for more efficient passenger conveyor maintenance operations.

The holders of the handrails of the passenger conveyor according to the present disclosure each have a width in the left-right direction that is wider than the width in the left-right direction of the handrails of the passenger conveyor, and are provided in parallel with each other with a space therebetween in the vertical direction. a pair of holding plates for holding the handrail by sandwiching the handrail with an equal space therebetween; The pair of holding plates are held by contacting a structure facing the handrail from one side in the longitudinal direction of the handrail from a direction perpendicular to the longitudinal direction of the handrail on the return path of the handrail. Limit the movement of the handrail portion to the other side of the structure.

A method for installing a drive sheave of a handrail of a passenger conveyor according to the present disclosure is to bend the handrail downward to form a curved portion on the return side of the handrail of an inclined passenger conveyor that spans between upper and lower floors. a lower floor side holding step of attaching a lower floor side holder for holding the handrail to a portion of the handrail on the lower floor side of the curved portion after the bending step; and the lower floor side holding step. Later, on the return path of the handrail, the lower story side holder is brought into contact with the lower story side structure facing the handrail from the upper story side in the longitudinal direction of the handrail from the direction perpendicular to the longitudinal direction of the handrail. , a lower floor side restricting step for restricting the movement of the handrail portion held by the lower floor side holder to the lower floor side of the lower floor side structure; and after the lower floor side restricting step, an installation step of installing a drive sheave for driving the handrail in the curved portion maintained by the lower floor side holding fixture; and a lower floor side removing the lower floor side holding fixture from the handrail after the installation process and a removal step.

According to the handrail retainer or handrail drive sheave installation method according to the present disclosure, the efficiency of the maintenance work of the passenger conveyor is further enhanced.

1 is a configuration diagram of a passenger conveyor according to Embodiment 1; FIG. 1 is a perspective view of a holder according to Embodiment 1; FIG. Fig. 2 is a side view of the passenger conveyor according to Embodiment 1; Fig. 2 is a side view of the passenger conveyor according to Embodiment 1; Fig. 2 is a side view of the passenger conveyor according to Embodiment 1; FIG. 2 is an enlarged view of a main part of the passenger conveyor according to Embodiment 1; FIG. 2 is an enlarged view of a main part of the passenger conveyor according to Embodiment 1; Fig. 2 is a side view of the passenger conveyor according to Embodiment 1;

Modes for implementing the subject matter of the present disclosure will be described with reference to the accompanying drawings. In each figure, the same or corresponding parts are denoted by the same reference numerals, and overlapping descriptions are appropriately simplified or omitted. It should be noted that the subject of the present disclosure is not limited to the following embodiments, and modifications of any constituent elements of the embodiments, or modifications of any constituent elements of the embodiments, within the scope of the present disclosure. It can be omitted.

Embodiment 1.
FIG. 1 is a configuration diagram of a passenger conveyor 1 according to Embodiment 1. As shown in FIG.

A passenger conveyor 1 is applied to a facility. The facility is, for example, an indoor facility, an outdoor facility, or a complex facility. A passenger conveyor 1 is a device for carrying and transporting passengers in a facility. In this example, the facility has multiple floors. The passenger conveyor 1 is, for example, an inclined escalator. A passenger conveyor 1 spans between the upper and lower floors of the facility. At this time, the passenger conveyor 1 transports passengers between the upper and lower floors. Doors 2 for passenger conveyors 1 are provided on the upper and lower floors of the facility. The boarding/alighting gate 2 is a place where passengers board/alight from the passenger conveyor 1. - 特許庁One boarding/alighting gate 2 is a boarding/alighting gate 2 on the departure side where passengers board the passenger conveyor 1.例文帳に追加The other boarding/alighting gate 2 is a boarding/alighting gate 2 on the arrival side where passengers get off the passenger conveyor 1. - 特許庁

The passenger conveyor 1 comprises a plurality of steps 3, a pair of handrails 4 and a pair of drive sheaves 5.

Each step 3 is a device that circulates by driving force generated by a motor (not shown) or the like. Each step 3 moves on the outward route from the boarding/alighting gate 2 on the departure side to the boarding/alighting gate 2 on the arrival side, and moves on the return route below the outward route from the boarding/alighting gate 2 on the arrival side to the boarding/alighting gate 2 on the departure side. A plurality of steps 3 are arranged in a stepped manner on the inclined portion of the outward path.

Each handrail 4 is a device that circulates on the passenger conveyor 1 . Each handrail 4 moves on the outward route from the boarding/alighting gate 2 on the departure side to the boarding/alighting gate 2 on the arrival side, and moves on the return route below the outward route from the boarding/alighting gate 2 on the arrival side to the boarding/alighting gate 2 on the departure side. Each handrail 4 is made of a flexible annular member. One handrail 4 is arranged on the left side of the steps 3 . The other handrail 4 is arranged on the right side of the steps 3 . Each handrail 4 moves while being guided by the guide rail 6 on the outward path or the like. Each handrail 4 moves while being guided by a guide roller 7 or the like, for example, on an inclined portion of a return path. The guide roller 7 is fixed to a structure 8 such as an angle member during normal operation of the passenger conveyor 1 . The structure 8 is arranged so as to face the handrail 4 in a direction perpendicular to the longitudinal direction of the handrail 4 . Here, the structure 8 is, for example, a part of equipment fixed to a facility such as a truss of the passenger conveyor 1, or a member fixed to equipment such as a truss.

Each drive sheave 5 is a device that is rotated by a drive force generated by a motor or the like that drives the steps 3 . Each drive sheave 5 corresponds to one handrail 4 . Each drive sheave 5 is a device that drives the corresponding balustrade 4 by rotation so that the balustrade 4 can move in a circular motion. A drive sheave 5 corresponding to the right handrail 4 is arranged to the right of the steps 3 . A drive sheave 5 corresponding to the left handrail 4 is arranged to the left of the steps 3 . Each drive sheave 5 is mounted on a bend 9 bent downwards in the return path of the corresponding handrail 4 . Here, the curved portion 9 of the handrail 4 is provided, for example, above the guide rollers 7 .

In the passenger conveyor 1 a safety device 10 is provided. The safety device 10 is, for example, a HSS (Handrail Speed Safety Device) that stops the passenger conveyor 1 when the moving speed of the handrail 4 deviates from the normal moving speed synchronized with the steps 3 . The guide roller 7 is fixed to a structure 8 such as an angle member during normal operation of the passenger conveyor 1 . The structure 8 is arranged so as to face the handrail 4 in a direction perpendicular to the longitudinal direction of the handrail 4 . In this example, the safety device 10 is provided above the curved portion 9 of the handrail 4 .

In normal operation, the passenger conveyor 1 transports a passenger standing on one of the steps 3 while holding one of the handrails 4, for example, by driving force generated by a motor or the like. At this time, each step 3 moves, for example, at a preset normal speed. Each handrail 4 circulates at a moving speed corresponding to a plurality of steps 3. - 特許庁

Here, in the maintenance work of the passenger conveyor 1, the handrail 4 may be replaced. At this time, the old handrail 4 is removed after the drive sheave 5 is removed. After that, the maintenance worker carries in a new handrail 4 to the passenger conveyor 1. - 特許庁The operator installs the drive sheave 5 on the bend 9 formed in the new handrail 4 . The drive sheave 5 installed here may be either the removed existing drive sheave 5 or the newly installed drive sheave 5 . At this time, the operator uses a holder not shown in FIG.

FIG. 2 is a perspective view of the holder 11 according to Embodiment 1. FIG.

The holder 11 includes a pair of holding plates 12 and an adjusting portion 13 .

Each holding plate 12 is a plate-like member. Each holding plate 12 may be formed of plate materials such as a plurality of metal plates. In this example, each holding plate 12 has a lateral direction as a longitudinal direction. The width of each holding plate 12 in the left-right direction is wider than the width of the handrail 4 in the left-right direction. A pair of holding plates 12 are arranged parallel to each other. The pair of holding plates 12 are arranged with a gap therebetween in the vertical direction. Each retainer plate 12 has an inner surface and an outer surface. In this example, the inner surface of each retainer plate 12 is a flat plane. Each holding plate 12 is arranged so that the normal lines of the inner surfaces face each other in the vertical direction. That is, the pair of holding plates 12 face each other with their inner surfaces facing each other. In this example, the outer surface of each retainer plate 12 is a flat plane. The normal lines of the outer surfaces of the respective holding plates 12 are oriented opposite to each other in the vertical direction. A contact surface 14 made of an elastic material is provided on the inner surface of each holding plate 12 . The contact surface 14 is made of, for example, a rubber sheet. A contact surface 14 is provided at the center of the inner surface of each holding plate 12 . Each holding plate 12 is provided with a through portion 15 at one or both of its left and right ends. In this example, through portions 15 are provided at both ends in the left-right direction of each holding plate 12 . The through portion 15 is, for example, a through hole. Note that the through portion 15 may be a notch.

The adjustment portion 13 is a portion that changes the distance between the pair of holding plates 12 . The adjusting portion 13 includes a pair of bolts 16 and nuts 17 . One of the bolts 16 is passed through the through-holes 15 on the left side of both of the holding plates 12 from the bottom to the top with its head down. The other bolt 16 is passed through the through portions 15 on the right side of both of the holding plates 12 from the bottom to the top with its head down. Each nut 17 is attached to the corresponding bolt 16 from above the upper retaining plate 12 . The adjusting portion 13 changes the distance between the pair of holding plates 12 by tightening the bolt 16 and the nut 17 .

Next, an example of replacement work of the handrail 4 including installation work of the drive sheave 5 will be described with reference to FIGS. 3 to 8. FIG. In this example, the drive sheave 5 is also replaced. Here, the work for one handrail 4 will be described as an example. The worker may work on the left and right handrails 4 in parallel, or may work on the left and right handrails 4 sequentially.
3 to 5 and 8 are side views of the passenger conveyor 1 according to Embodiment 1. FIG.
6 and 7 are enlarged views of main parts of the passenger conveyor 1 according to Embodiment 1. FIG.

In replacing the handrail 4, the worker removes the old drive sheave 5 from the curved portion 9 of the handrail 4, as shown in FIG. After that, the worker removes the old handrail 4 from the passenger conveyor 1. - 特許庁

After that, the worker carries a new handrail 4 onto the passenger conveyor 1, as shown in FIG. The worker places the new handrail 4 brought in over the inclined portion by hanging it on some rollers provided on the passenger conveyor 1. - 特許庁The worker does not yet attach the handrail 4 to the guide rail 6 on the forward route. At this time, the new handrail 4 is biased toward the lower floor by its own weight on the way home. As a result, bending of the curved portion 9 is reduced at the portion of the return path where the drive sheave 5 is installed.

After that, the worker performs the work of the bending process. In the bending process, as shown in FIG. 5, the worker pulls up the handrail 4, which is biased toward the lower floor, toward the upper floor. At this time, the handrail 4 may be lifted by a plurality of workers. As a result, the handrail 4 bends downward to form a curved portion 9 on the upper floor side of the worker pulling up the handrail 4 . For example, when the bend of the bending portion 9 is small, the operator may adjust the bending size by directly pushing down the bending portion 9 or the like.

After that, the worker performs the work of the lower floor side holding process and the upper floor side holding process. The lower-floor-side holding step is a step of attaching the holder 11 to the lower-floor portion of the curved portion 9 of the handrail 4 . The upper floor side holding step is a step of attaching another holder 11 to a portion of the handrail 4 on the upper floor side of the curved portion 9 . The retainer 11 attached to the portion of the handrail 4 on the lower floor side of the curved portion 9 is an example of a lower floor retainer. The retainer 11 attached to the portion of the handrail 4 on the upper floor side of the curved portion 9 is an example of an upper floor retainer.

In the lower floor holding step, the worker removes the upper holding plate 12 by removing the nuts 17 of the adjusting portions 13 of the lower floor holding fixture 11 from the corresponding bolts 16 . The worker applies the other holding plate 12 to which the bolt 16 is attached from below the handrail 4 . A worker puts the upper holding plate 12 on the handrail 4 from above so that the handrail 4 is sandwiched between the pair of holding plates 12 in the vertical direction. The worker adjusts the vertical spacing between the pair of holding plates 12 by tightening the nuts 17 of the adjusting portion 13 to the corresponding bolts 16 . The worker adjusts the holding strength of the pair of holding plates 12 holding the handrail 4 by tightening the bolts 16 and the nuts 17 . The worker adjusts the holding strength so that the handrail 4 does not move longitudinally with respect to the holder 11 within a range in which the handrail 4 is not excessively deformed by being sandwiched between the pair of holding plates 12 . In the upper floor side holding step, the worker attaches the upper floor side holder 11 to the handrail 4 by the same procedure. Note that the operator may perform either the lower floor side holding process or the upper floor side holding process first. The worker may perform the work of the lower story side holding process and the work of the upper story side holding process in parallel.

After that, the worker performs the work of the lower floor side restricted process and the upper floor side restricted process. The lower floor side restricting step is a step of restricting the movement of the part of the handrail 4 to which the holder 11 is attached to the lower floor side by the holder 11 attached to the handrail 4 in the lower floor side holding step. The upper floor side restricting step is a step of restricting the portion of the handrail 4 to which the holder 11 is attached from moving to the upper floor side by the holder 11 attached to the handrail 4 in the upper floor side holding step. Note that the worker may perform either the lower floor side restricted process or the upper floor side restricted process first. The worker may perform the work of the lower floor side restricted process and the upper floor side restricted process in parallel. In addition, the worker may perform the work of the lower floor side restriction process before the upper floor side holding process as long as it is after the lower floor side holding process. Alternatively, the worker may perform the work of the upper floor side restriction process before the lower floor side holding process if it is after the upper floor side holding process.

In the lower-floor side restriction process, as shown in FIG. A structure 8 arranged to face the handrail 4 is applied from the upper story side in the longitudinal direction of the handrail 4. - 特許庁At this time, the lateral ends of the holding plate 12 are in contact with the structure 8 . Since the holder 11 in contact with the structure 8 holds the handrail 4 so as not to move in the longitudinal direction, movement of the portion of the handrail 4 to which the holder 11 is attached to the lower floor is restricted. be done. The structure 8 is, for example, an angle member for fixing the guide roller 7 . At this time, the guide rollers 7 have been removed from the structure 8 in question. The structure 8 is an example of a structure on the lower floor side.

In the upper floor side restricting process, as shown in FIG. 7, the worker moves the holding plate 12 on the upper side of the holder 11 attached to the handrail 4 in the upper floor side holding process in a direction perpendicular to the longitudinal direction of the handrail 4 . The lower floor side in the longitudinal direction of the handrail 4 is applied to the structure 8 arranged so as to face the handrail 4 from the bottom. At this time, the lateral ends of the holding plate 12 are in contact with the structure 8 . Since the holder 11 in contact with the structure 8 holds the handrail 4 so as not to move in the longitudinal direction, movement of the portion of the handrail 4 to which the holder 11 is attached is restricted to the upper floor side. be done. The structure 8 is, for example, an angle material for fixing the safety device 10 . At this time, the safety device 10 has been removed from the structure 8 in question. The structure 8 is an example of a structure on the upper floor side.

The lower floor side restricting process and the upper floor side restricting process restrict longitudinal movement of the handrail 4 on the lower floor side and the upper floor side of the curved portion 9 of the handrail 4, as shown in FIG. As a result, the curved portion 9 of the handrail 4 is maintained so as not to stretch due to the weight of the handrail 4 or the like. Since the curved portion 9 is maintained by the holder 11, the worker does not need to manually hold the handrail 4 to maintain the curved portion 9. Therefore, the worker who lifted the handrail 4 in the bending process can perform the installation work of the drive sheave 5 or its auxiliary work, or other work in maintenance and inspection.

After that, the worker performs the installation process of the drive sheave 5 . The installation step is a step of installing the drive sheave 5 on the curved portion 9 . The work of the installation process includes installation work such as positioning and mounting the drive sheave 5 .

After that, the worker performs the work of the lower floor side removal process and the upper floor side removal process. The lower-floor-side removal step is a step of removing the holder 11 attached in the lower-floor-side removal step from the handrail 4 . The upper floor removal step is a step of removing the holder 11 attached in the upper floor removal step from the handrail 4 . In the lower-floor-side removal process and the lower-floor-side removal process, the worker removes the holder 11 from the handrail 4, for example, by reversing the procedure for attaching to the handrail 4. FIG. The worker may perform either the lower floor side removal process or the upper floor side removal process first. The worker may perform the work of the lower floor side removal process and the upper floor side removal process in parallel.

After installing the drive sheave 5 of the handrail 4 in this way, the worker performs operations such as attaching a new handrail 4 to the guide rail 6 for the forward path, installing the guide rollers 7 and installing the safety device 10 .

As described above, the holder 11 according to Embodiment 1 includes the pair of holding plates 12 and the adjusting section 13 . The lateral width of each holding plate 12 is wider than the lateral width of the handrail 4 of the passenger conveyor 1 . A pair of holding plates 12 are provided parallel to each other with a gap in the vertical direction. The pair of holding plates 12 holds the handrail 4 by sandwiching it in a vertical space. The adjustment unit 13 adjusts the strength of holding of the handrail 4 by the pair of holding plates 12 by changing the distance between the pair of holding plates 12 . By contacting the structure 8 from one side of the handrail 4 in the longitudinal direction, the holder 11 prevents the portion of the handrail 4 held by the pair of holding plates 12 from moving to the other side of the structure 8 . Restrict. The structure 8 faces the handrail 4 from a direction perpendicular to the longitudinal direction of the handrail 4 on the return path of the handrail 4 .
Further, the installation method of the drive sheave 5 according to Embodiment 1 includes a bending process, a lower story side holding process, a lower story side restricting process, an installation process, and a lower story side removing process. The installation method is applied to an inclined passenger conveyor 1 that spans between upper and lower floors. The bending step is a step of bending the handrail 4 downward to form a curved portion 9 on the return side of the handrail 4 . The lower-floor-side holding step is a step of attaching the holder 11 for holding the handrail 4 to the lower-floor portion of the curved portion 9 of the handrail 4 . The lower story side holding process is a process after the bending process. In the lower-floor-side restricting step, the holder 11 attached to the handrail 4 in the lower-floor-side holding step is brought into contact with the lower-floor structure 8 from the upper story side in the longitudinal direction of the handrail 4 , thereby holding the structure 8 . This is a step of restricting movement of the portion of the handrail 4 held by the fixture 11 to the lower floor side of the structure 8 . The structure 8 faces the handrail 4 from a direction perpendicular to the longitudinal direction of the handrail 4 on the return path of the handrail 4 . The lower-floor-side restricting step is a step after the lower-floor-side holding step. The installation step is a step of installing the drive sheave 5 for driving the handrail 4 on the curved portion 9 maintained by the holder 11 . The installation step is a step after the lower floor side restriction step. The lower-floor-side removal step is a step of removing the holder 11 attached to the handrail 4 in the lower-floor-side holding step from the handrail 4 . The lower floor side removal process is a process after the installation process.

Such a configuration eliminates the need to maintain the curved portion 9 by manually holding the handrail 4 . Therefore, even when a plurality of workers participate in the bending process, while one of the workers is performing the installation work of the drive sheave 5, the other workers are performing other maintenance work. be able to do it. Thereby, the efficiency of the maintenance work of the passenger conveyor 1 is further improved. Other workers can also assist in the installation work of the drive sheave 5 . Since the driving sheave 5 is generally heavy, the efficiency of the installation work itself of the driving sheave 5 can be improved by the participation of an assistant. In addition, since it is not necessary to manually hold the handrail 4 for a long time in order to maintain the curved portion 9, depending on the weight of the handrail 4, the work such as lifting the handrail 4 in the bending process may be done by one worker. be. In such a case, the number of personnel required for maintenance work can be minimized. Further, since the bending portion 9 is held by the holding fixture 11, it is stable during the installation work of the drive sheave 5. As shown in FIG. In addition, when a worker manually maintains the bending portion 9, the bending portion 9 may be deformed due to worker fatigue or the like during the installation work of the drive sheave 5. FIG. At this time, the worker who is performing the installation work adjusts the lifting amount of the handrail 4 by speaking to the worker holding the handrail 4 or the like. Here, if the curved portion 9 is not visible to the worker holding the handrail 4, the lifting amount is adjusted only by the voice of the worker performing the installation work, so the lifting amount is adjusted. was time-consuming. On the other hand, by using the retainer 11 to maintain the curved portion 9 , the curved portion 9 is not deformed and stabilized during the installation work of the drive sheave 5 . Therefore, the efficiency of the installation work of the drive sheave 5 is further enhanced. In addition, since the holder 11 has a simple and compact structure, it becomes possible to easily carry out work such as holding the handrail 4 even in a narrow work space such as on a return trip.

In addition, at least one of the holding plates 12 contacts the structure 8 from one side in the longitudinal direction at the end in the left-right direction, so that the portion of the handrail 4 held by the pair of holding plates 12 is removed from the structure. Limit the movement of 8 to the other side. For example, the length in the horizontal direction from the center of the holding plate 12 to the portion that contacts the structure 8 is longer than the length in the horizontal direction from the center of the handrail 4 to the structure 8 .

With such a configuration, the worker can restrict the movement of the handrail 4 by a simple operation of placing the holding plate 12 against the structure 8 . Efficiency of maintenance work for the passenger conveyor 1 is further enhanced.

In addition, each holding plate 12 has a contact surface 14 made of an elastic material on the inner surface in the vertical direction.

With such a configuration, the portion of the handrail 4 held by the holding plate 12 is less likely to be damaged.

Further, the adjusting portion 13 has a bolt 16 and a nut 17 . The adjusting portion 13 changes the distance between the pair of holding plates 12 by tightening the bolt 16 and the nut 17 .

With such a configuration, the operator can easily adjust the holding strength of the holding plate 12 . In addition, since the worker can feel the strength of the holding by feeling the tightening of the bolt 16 and the nut 17, damage to the handrail 4 due to excessive holding can be suppressed.

Further, each holding plate 12 is provided with a through portion 15 at the end portion in the left-right direction. The bolt 16 is passed through the through portion 15 of each holding plate 12 from below to above with its head downward. A nut 17 is attached to the bolt 16 on the upper side of the pair of holding plates 12 .

With such a configuration, the operator can perform fastening work from above the handrail 4 . Therefore, the workability of attaching the holder 11 to the handrail 4 can be further enhanced.

Further, the method for installing the drive sheave 5 according to Embodiment 1 includes an upper story holding step, an upper story restricting step, and an upper story removing step. The upper-floor side holding step is a step of attaching a holder 11 for holding the handrail 4 to a portion of the handrail 4 on the upper floor side of the curved portion 9 . In the upper-floor-side restricting step, the holder 11 attached to the handrail 4 in the upper-floor-side holding step is brought into contact with the upper-floor structure 8 from the lower-floor side in the longitudinal direction of the handrail 4, thereby holding the structure 8 on the upper-floor side. This is a step of restricting the movement of the handrail 4 portion held by the fixture 11 to the upper floor side of the structure 8 . On the return path of the handrail 4 on the upper story side from the structure 8 with which the holder 11 attached to the handrail 4 in the lower story holding process contacts, the handrail 4 is held from the direction perpendicular to the longitudinal direction of the handrail 4. facing. The upper floor side restriction process is a process after the upper floor side holding process and before the installation process. The upper floor removing step is a step of removing the holder 11 attached to the handrail 4 in the upper floor holding step from the handrail 4 . The upper floor side removal process is a process after the installation process.

Even if the movement of the portion on the lower floor side than the curved portion 9 of the handrail 4 is restricted by the handrail 4 on the lower floor side, if the side of the handrail 4 closer to the outward path is biased toward the lower floor side due to its own weight, the curved portion 9 of the handrail 4 There is a possibility that the bending of the curved portion 9 may be reduced by pulling up the portion on the higher floor side. On the other hand, since the movement of the portion above the curved portion 9 of the handrail 4 is restricted by the holder 11 on the upper story side, the curved portion 9 can be moved by pulling up the portion above the curved portion 9 of the handrail 4 . growth will be suppressed. As a result, the curved portion 9 can be maintained more stably, and the efficiency of the installation work of the drive sheave 5 can be further enhanced. Since the handrail 4 is hung on some rollers provided on the passenger conveyor 1 during the installation work of the drive sheave 5, depending on conditions such as the structure of the passenger conveyor 1 and the weight of the handrail 4, The handrail 4 may not move easily. In such a case, it may not be necessary to consider the effect of elongation of the curved portion 9 caused by pulling up the portion of the handrail 4 on the upper floor side from the curved portion 9 . At this time, the worker does not need to use the holder 11 on the upper floor side of the curved portion 9 for the purpose of simplifying the maintenance work.

Note that the upper story side restricted process may be a process before the bending process.

With such a configuration, it is possible to suppress the elongation of the curved portion 9 caused by pulling up the portion of the handrail 4 on the upper floor side from the curved portion 9 during the bending process. be able to form. Thereby, the efficiency of the maintenance work of the passenger conveyor 1 is further improved.

Also, the through portion 15 may be a notch into which the bolt 16 can be inserted from a direction perpendicular to the vertical direction of the holder 11 .

Such a configuration allows the bolt 16 and nut 17 to be inserted into the penetration 15 without being completely separated. Therefore, the possibility of dropping the bolt 16 or the nut 17 during work is suppressed. As a result, the efficiency of maintenance work for the passenger conveyor 1 is less likely to decline.

Further, the holder 11 may have a restricting portion that contacts the structure 8 separately from the pair of holding plates 12 . The restricting part restricts movement of the portion of the handrail 4 held by the pair of holding plates 12 to the other side of the structure 8 by coming into contact with the structure 8 from one side of the handrail 4 in the longitudinal direction. part. The restricting portion is, for example, a member or the like that is fixed to one of the left and right end portions of the holding plate 12 . Alternatively, the restriction may be a portion that includes a hook that contacts and hangs on one side of the structure 8 . At this time, the pair of holding plates 12 are arranged on the other side of the structure 8 . The hook and the pair of holding plates 12 are connected by a linear member such as a rope, band, wire or chain. The portion of the handrail 4 held by the pair of holding plates 12 is pulled to the other side of the structure 8 by the tension of the hooks hung on one side of the structure 8 and the linear members connecting the pair of holding plates 12. movement is restricted.

Further, the adjusting portion 13 may be provided only at one end of the holding plate 12 in the left-right direction when sufficient strength of holding by the pair of holding plates 12 can be ensured. For example, when the rigidity of the holding plate 12 is sufficiently high, the strength of holding by the holding plate 12 is ensured. Alternatively, when the rotation around the adjusting portion 13 between the pair of holding plates 12 is restricted, the strength of holding by the holding plates 12 is ensured. For example, each holding plate 12 is provided with a through hole or the like at the end on the side where the adjusting portion 13 is provided. A detent such as a rod-like member is passed through the through hole from above and below. Rotation around the adjusting portion 13 between the pair of holding plates 12 is limited by the passage of the detent. As a result, the holding strength is prevented from being lowered due to the rotation of the holding plate 12 .

Moreover, the nut 17 of the adjusting portion 13 may be one that can be fastened without using a tool such as a wing nut. Alternatively, instead of the nut 17, the adjusting portion 13 may have a handle or the like that can be fastened without using a tool. Thereby, the workability of the maintenance work of the passenger conveyor 1 is further enhanced.

Moreover, the bolt 16 of the adjusting portion 13 may be fixed to the lower holding plate 12 by a nut other than the nut 17 for adjusting the holding strength of the holding plate 12 . This reduces the possibility of dropping the bolt 16 during work.

Moreover, the holder 11 may be provided with a drop prevention tool for preventing parts such as the bolt 16 and the nut 17 from falling off. The fall prevention tool is, for example, a linear member such as a rope, band, wire, or chain that connects parts such as bolts 16 and nuts 17 to one of the holding plates 12 .

Moreover, the holder 11 and the method of installing the drive sheave 5 using this can also be applied to the work of replacing only the drive sheave 5 without replacing the handrail 4 . Moreover, the holder 11 and the method of installing the drive sheave 5 using it can also be applied to work such as overhaul inspection in which no parts are replaced.

Also, the passenger conveyor 1 may be, for example, an inclined moving ramp.

1 Passenger Conveyor 2 Entrance/Exit 3 Step 4 Handrail 5 Drive Sheave 6 Guide Rail 7 Guide Roller 8 Structure 9 Curved Part 10 Safety Device 11 Holding Tool 12 Holding Plate 13 Adjusting Part 14 contact surface, 15 penetration, 16 bolt, 17 nut

Claims (9)

A pair of holders, each of which has a width in the horizontal direction wider than the width in the horizontal direction of the handrails of the passenger conveyor, is provided parallel to each other with a space in the vertical direction, and holds the handrails by sandwiching the handrails in the space in the vertical direction. a board;
an adjustment unit that adjusts the strength of holding of the handrail by the pair of holding plates by changing the distance between the pair of holding plates;
with
In the return path of the handrail, the handrail held by the pair of holding plates is brought into contact with the structure facing the handrail from one side in the longitudinal direction of the handrail from a direction perpendicular to the longitudinal direction of the handrail. Passenger conveyor handrail retainer restricting movement of parts to the other side of said structure. At least one of the pair of holding plates is brought into contact with the structure at the left-right end, thereby moving the handrail portion held by the pair of holding plates to the other side of the structure. 2. A passenger conveyor handrail retainer according to claim 1, wherein the retainer restricts the . 3. A holder for a handrail of a passenger conveyor according to claim 1, wherein each of said pair of holding plates has a contact surface made of an elastic material on the inner surface in the vertical direction. The handrail of the passenger conveyor according to any one of claims 1 to 3, wherein the adjusting portion has a bolt and a nut, and changes the interval between the pair of holding plates by tightening the bolt and the nut. retainer. Each of the pair of holding plates is provided with a through portion at an end in the left-right direction,
the bolt is passed from below to above through the through portion of each of the pair of holding plates with its head downward;
5. The passenger conveyor handrail retainer according to claim 4, wherein said nuts are attached to said bolts on the upper sides of said pair of retaining plates. 6. A holder for a handrail of a passenger conveyor according to claim 5, wherein said through portion is a notch into which said bolt can be inserted in a vertical direction. a bending step of bending the handrail downward to form a curved portion on the return side of the handrail of the inclined passenger conveyor that spans between the upper floor and the lower floor;
a lower-floor-side holding step of attaching a lower-floor-side holder for holding the handrail to a portion of the handrail on the lower-floor side of the curved portion after the bending step;
After the lower-floor side holding step, on the return path of the handrail, the lower-floor side is held from the upper story side in the longitudinal direction of the handrail to the lower-floor structure facing the handrail from the direction perpendicular to the longitudinal direction of the handrail. a lower story side restricting step of restricting movement of the handrail portion held by the lower story side holding tool to the lower story side of the lower story side structure by contacting a tool;
an installation step of installing a drive sheave for driving the handrail in the curved portion maintained by the lower floor side retainer after the lower floor side restricting step;
a lower floor side removal step of removing the lower floor side holder from the handrail after the installation step;
A method for installing a drive sheave for a handrail of a passenger conveyor comprising: an upper-floor-side holding step of attaching an upper-floor-side holder for holding the handrail to a portion of the handrail on the upper-floor side of the curved portion;
After the upper floor side holding step and before the installation step, the upper floor side facing the handrail from a direction perpendicular to the longitudinal direction of the handrail on the upper floor side of the lower floor side structure on the return path of the handrail. By bringing the upper floor side holder into contact with the structure from the lower floor side in the longitudinal direction of the handrail, the portion of the handrail held by the upper floor side holder is positioned above the upper floor side structure. an upper floor side restriction process for restricting movement to the floor side;
an upper-floor-side removal step of removing the upper-floor-side holder from the handrail after the installation step;
A method for installing a drive sheave of a handrail of a passenger conveyor according to claim 7, comprising: 9. The method of installing a drive sheave for a handrail of a passenger conveyor according to claim 8, wherein said upper floor side restricting step is a step prior to said bending step.

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