CN116075476A

CN116075476A - Holder for handrail of passenger conveyor and method for setting driving wheel of handrail of passenger conveyor

Info

Publication number: CN116075476A
Application number: CN202280005812.8A
Authority: CN
Inventors: 竹森健
Original assignee: Mitsubishi Electric Building Solutions Corp
Current assignee: Mitsubishi Electric Building Solutions Corp
Priority date: 2021-09-01
Filing date: 2022-07-13
Publication date: 2023-05-05
Anticipated expiration: 2042-07-13
Also published as: CN116075476B; JP7164001B1; WO2023032479A1; KR20230035348A; KR102515320B1; JP2023035488A

Abstract

Provided are a handrail holder capable of further improving the efficiency of maintenance work of a passenger conveyor, and a method for installing driving wheels of a handrail. The holder (11) is provided with a pair of holding plates (12) and an adjustment part (13). The width of each holding plate (12) in the left-right direction is wider than the width of the handrail (4) of the passenger conveyor (1) in the left-right direction. A pair of holding plates (12) are provided in parallel with each other at a distance from each other in the vertical direction. A pair of holding plates (12) sandwich and hold the handrail (4) at intervals spaced in the vertical direction. The adjustment unit (13) adjusts the holding strength of the armrest (4) by changing the interval between the pair of holding plates (12). The retainer (11) is in contact with the structure (8) from one side in the longitudinal direction of the armrest (4), and thereby restricts movement of the portion of the armrest (4) held by the pair of holding plates (12) to the other side of the structure (8). The structure (8) faces the handrail (4) from a direction perpendicular to the longitudinal direction of the handrail (4) during the return of the handrail (4).

Description

Holder for handrail of passenger conveyor and method for setting driving wheel of handrail of passenger conveyor

Technical Field

The present invention relates to a handrail holder for a passenger conveyor and a method for setting a driving wheel for a handrail of a passenger conveyor.

Background

Patent document 1 discloses an example of a passenger conveyor. The passenger conveyor is provided with a handrail and a driving wheel of the handrail. The driving wheel is provided at a bending portion of the handrail which is bent downward during return of the handrail.

Prior art literature

Patent literature

Patent document 1: japanese patent No. 6235074

Disclosure of Invention

Problems to be solved by the invention

In the maintenance work of the passenger conveyor of patent document 1 or the like, a drive wheel to be removed once or a drive wheel to be newly provided may be provided. Since the driving wheel is provided at the bending portion of the handrail, the bending portion needs to be maintained so that the bending portion of the handrail is not stretched by the self weight of the handrail or the like during the installation work of the driving wheel. When an operator performing maintenance work holds the handrail by a hand to maintain the bent portion, the operator who performs installation work of the driving wheels needs to hold the handrail, and the efficiency of maintenance work of the passenger conveyor may be reduced.

The present invention relates to solving such problems. The invention provides a handrail holder and a handrail driving wheel setting method capable of further improving maintenance operation efficiency of a passenger conveyor.

Means for solving the problems

The handrail holder of the passenger conveyor of the invention comprises: a pair of holding plates each having a width in a lateral direction that is wider than a width in the lateral direction of a handrail of the passenger conveyor, the holding plates being provided in parallel with each other at intervals in a vertical direction, and sandwiching and holding the handrail at the intervals in the vertical direction; and an adjustment unit that adjusts the holding strength of the handrail by the pair of holding plates by changing the interval between the pair of holding plates, wherein a holding member of the handrail of the passenger conveyor contacts a structure from one side in the longitudinal direction of the handrail to restrict movement of a portion of the handrail held by the pair of holding plates to the other side of the structure, and wherein the structure faces the handrail from a direction perpendicular to the longitudinal direction of the handrail during return of the handrail.

The method for setting the driving wheel of the handrail of the passenger conveyor comprises the following steps: a bending step of bending a handrail of an inclined passenger conveyor, which is installed between an upper layer and a lower layer, downward on a return side of the handrail to form a bending portion; a lower-layer-side holding step of attaching a lower-layer-side holder for holding the handrail to a portion of the handrail on a lower layer side than the bent portion after the bending step; a lower-side restricting step of restricting movement of the portion of the handrail held by the lower-side holder to a lower side of a lower-side structure facing the handrail from a direction perpendicular to a longitudinal direction of the handrail during return of the handrail by bringing the lower-side holder into contact with the lower-side structure from the upper side in the longitudinal direction of the handrail after the lower-side holding step; a setting step of setting a drive wheel for driving the handrail at the bending portion maintained by the lower holder after the lower limiting step; and a lower-layer-side removing step of removing the lower-layer-side holder from the armrest after the setting step.

Effects of the invention

According to the handrail holder or the handrail driving wheel setting method of the present invention, the efficiency of maintenance work of the passenger conveyor can be further improved.

Drawings

Fig. 1 is a structural diagram of a passenger conveyor according to embodiment 1.

Fig. 2 is a perspective view of the holder according to embodiment 1.

Fig. 3 is a side view of the passenger conveyor of embodiment 1.

Fig. 4 is a side view of the passenger conveyor of embodiment 1.

Fig. 5 is a side view of the passenger conveyor of embodiment 1.

Fig. 6 is an enlarged view of a main part of the passenger conveyor of embodiment 1.

Fig. 7 is an enlarged view of a main part of the passenger conveyor of embodiment 1.

Fig. 8 is a side view of the passenger conveyor of embodiment 1.

Detailed Description

The manner in which the objects of the present invention are implemented will be described with reference to the accompanying drawings. In the drawings, the same or corresponding portions are denoted by the same reference numerals, and repetitive description thereof will be appropriately simplified or omitted. The object of the present invention is not limited to the following embodiments, and modifications of any of the components of the embodiments or omission of any of the components of the embodiments can be made without departing from the scope of the present invention.

Embodiment 1

Fig. 1 is a structural diagram of a passenger conveyor 1 according to embodiment 1.

The passenger conveyor 1 is applied to a facility. The facility is, for example, an indoor facility, an outdoor facility, a composite facility, or the like. The passenger conveyor 1 is a device for carrying passengers in facilities and conveying them. In this example, the facility has multiple floors. The passenger conveyor 1 is, for example, an inclined escalator. The passenger conveyor 1 is installed between an upper floor and a lower floor of the facility. At this time, the passenger conveyor 1 conveys passengers between the upper and lower floors. The passenger conveyor 1 is provided with a landing port 2 on the upper and lower floors of the facility. The entrance 2 is a place where passengers get on and off the passenger conveyor 1. One of the entrance 2 is the entrance 2 on the departure side of the passenger conveyor 1 on which passengers take. The other entrance 2 is the entrance 2 on the arrival side of the passenger from the passenger conveyor 1.

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

Each step 3 is a device that is circulated by a driving force generated by a motor or the like, not shown. Each step 3 moves from the departure-side entrance 2 to the arrival-side entrance 2 during the outgoing route, and moves from the arrival-side entrance 2 to the departure-side entrance 2 during the return route below the outgoing route. The plurality of steps 3 are arranged in a stepped shape at the inclined portion of the outgoing path.

Each handrail 4 is a device that circulates in the passenger conveyor 1. Each handrail 4 moves from the departure-side entrance 2 to the arrival-side entrance 2 during the outgoing route, and moves from the arrival-side entrance 2 to the departure-side entrance 2 during the return route below the outgoing route. Each armrest 4 is formed of a flexible annular member. One handrail 4 is arranged on the left side of the plurality of steps 3. The other handrail 4 is disposed on the right side of the plurality of steps 3. Each handrail 4 is guided to move by the guide rail 6 during the travel and the like. Each handrail 4 is guided to move by a guide roller 7 or the like, for example, at an inclined portion of the return path or the like. 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 to face the handrail 4 from a direction perpendicular to the longitudinal direction of the handrail 4. Here, the structure 8 is, for example, a part of a device fixed to a facility such as a truss of the passenger conveyor 1, a member fixed to a device such as a truss, or the like.

Each driving wheel 5 is a device that rotates by a driving force generated by a motor or the like that drives the plurality of steps 3. Each drive wheel 5 corresponds to any one of the handrails 4. Each driving wheel 5 is a device that drives the corresponding handrail 4 by rotating in such a manner that the handrail 4 can move in a circulating manner. The drive wheel 5 corresponding to the right handrail 4 is disposed on the right side of the plurality of steps 3. The drive wheel 5 corresponding to the left handrail 4 is disposed on the left side of the plurality of steps 3. Each driving wheel 5 is provided with a curved portion 9 that curves downward during the return of the corresponding handrail 4. Here, the curved portion 9 of the handrail 4 is provided, for example, at a position higher than the guide roller 7.

A safety device 10 is provided in the passenger conveyor 1. The safety device 10 is, for example, an HSS (Handrail Speed Safety device: handrail speed safety device) or the like that stops the passenger conveyor 1 when the moving speed of the handrail 4 is out of the normal moving speed synchronized with the plurality of 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 to face the handrail 4 from a direction perpendicular to the longitudinal direction of the handrail 4. In this example, the safety device 10 is provided at a position higher than the bent portion 9 of the armrest 4.

In normal operation, the passenger conveyor 1 conveys a passenger standing on an arbitrary step 3 while grasping one handrail 4, for example, by a driving force generated by a motor or the like. At this time, each step 3 moves at a normal speed set in advance, for example. Each handrail 4 is circulated at a moving speed corresponding to the plurality of steps 3.

In this case, the handrail 4 may be replaced during maintenance work of the passenger conveyor 1. At this time, after the drive wheel 5 is removed, the old handrail 4 is removed. Thereafter, the operator who performs the maintenance work carries in a new handrail 4 into the passenger conveyor 1. The operator sets the drive wheel 5 in the curved portion 9 formed in the new handrail 4. The driving wheel 5 provided here may be either one of a set driving wheel 5 and a new driving wheel 5 which are detached. At this time, the operator maintains the bent portion 9 formed at the return path of the handrail 4 by using a holder not shown in fig. 1 and performs the installation work of the driving wheel 5.

Fig. 2 is a perspective view of holder 11 according to embodiment 1.

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 a plurality of metal plates or the like. In this example, each holding plate 12 has a longitudinal direction which is the left-right 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. The pair of holding plates 12 are arranged parallel to each other. The pair of holding plates 12 are arranged at intervals in the vertical direction. Each retaining plate 12 has an inner surface and an outer surface. In this example, the inner surface of each holding plate 12 is a flat plane. The holding plates 12 are arranged such that the normals to the inner surfaces face each other in the up-down direction. That is, the pair of holding plates 12 are opposed to each other with the inner surfaces facing each other. In this example, the outer surface of each retaining plate 12 is a flat plane. The normal lines of the outer surfaces of the respective holding plates 12 face opposite sides to each other in the up-down direction. A contact surface 14 made of an elastic body is provided on the inner surface of each holding plate 12. The contact surface 14 is made of, for example, a rubber sheet. The contact surface 14 is provided in a central portion 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 the lateral ends. In this example, through portions 15 are provided at both end portions in the left-right direction of each holding plate 12. The through portion 15 is, for example, a through hole. The through portion 15 may be a slit.

The adjustment portion 13 is a portion for changing the interval between the pair of holding plates 12. The adjustment portion 13 includes a pair of sets of bolts 16 and nuts 17. One bolt 16 passes through the left through portion 15 of the two holding plates 12 from below toward above with its head downward. The other bolt 16 passes through the right-side through portions 15 of the two holding plates 12 from below toward above with its head downward. Each nut 17 is attached to a corresponding bolt 16 from above the upper holding plate 12. The adjustment portion 13 changes the interval 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 driving wheel 5 will be described with reference to fig. 3 to 8. In this example, the replacement of the drive wheel 5 is also performed. Here, an operation for one armrest 4 will be described as an example. The worker may perform the work on the left and right armrests 4 in parallel, or may perform the work on the left and right armrests 4 in sequence.

Fig. 3 to 5 and 8 are side views of the passenger conveyor 1 of embodiment 1.

Fig. 6 and 7 are enlarged views of a main part of the passenger conveyor 1 of embodiment 1.

In the replacement work of the handrail 4, as shown in fig. 3, the operator removes the old drive wheel 5 from the bent portion 9 of the handrail 4. Thereafter, the worker removes the old handrail 4 from the passenger conveyor 1.

Thereafter, as shown in fig. 4, the operator carries a new handrail 4 into the passenger conveyor 1. The operator hangs a new handrail 4 carried in on a roller or the like provided in a part of the passenger conveyor 1, and arranges the handrail over the inclined portion. The operator has not yet mounted the handrail 4 on the outgoing guide 6. At this time, the new handrail 4 is biased to the lower layer side by its own weight during the return. Thus, the bending of the bending portion 9 becomes smaller at the position where the driving wheel 5 is provided.

Thereafter, the operator performs the bending process. In the bending step, as shown in fig. 5, the operator lifts the arm rest 4 biased to the lower layer side toward the upper layer side. At this time, the armrest 4 may be lifted by a plurality of operators. Accordingly, the armrest 4 is bent downward to form the bent portion 9 at a position on the upper layer side of the operator who lifts the armrest 4. In addition, for example, when the bending of the bending portion 9 is small, the operator may directly press down the bending portion 9 to adjust the magnitude of the bending.

Then, the worker performs the operations of the lower-layer-side holding step and the upper-layer-side holding step. The lower-layer-side holding step is a step of attaching the holder 11 to a portion of the handrail 4 on the lower layer side than the bent portion 9. The upper-layer holding step is a step of attaching another holder 11 to a portion of the handrail 4 on the upper layer side of the bent portion 9. The holder 11 attached to the portion of the handrail 4 on the lower layer side than the bent portion 9 is an example of a lower layer side holder. The holder 11 attached to the portion of the armrest 4 on the upper layer side of the bent portion 9 is an example of an upper layer side holder.

In the lower-stage holding step, the worker removes the nut 17 of the adjustment portion 13 of the lower-stage holder 11 from the corresponding bolt 16, and removes the upper-stage holding plate 12. The operator brings the other holding plate 12 to which the bolt 16 is attached into contact from below the armrest 4. The worker covers the upper holding plate 12 from above the armrest 4, and sandwiches the armrest 4 with a gap in the up-down direction between the pair of holding plates 12. The worker fastens the nuts 17 of the adjustment portions 13 to the corresponding bolts 16, thereby adjusting the vertical interval between the pair of holding plates 12. The worker adjusts the holding strength of the pair of holding plates 12 by sandwiching the armrest 4 by tightening the bolts 16 and the nuts 17. The worker adjusts the holding strength so that the handrail 4 does not move in the longitudinal direction relative to the holder 11 within a range where the deformation of the handrail 4 due to the sandwiching by the pair of holding plates 12 is not excessive. The worker also attaches the upper holder 11 to the armrest 4 by the same procedure as in the upper holding step. Further, the operator may perform any one of the lower-layer holding step and the upper-layer holding step. The worker may perform the operations of the lower layer side holding step and the upper layer side holding step in parallel.

Then, the operator performs the lower-layer-side restriction step and the upper-layer-side restriction step. The lower-layer restricting step is a step of restricting movement of the portion of the handrail 4 to which the holder 11 is attached to the handrail 4 to the lower-layer side by the holder 11 attached to the handrail 4 in the lower-layer holding step. The upper-layer-side restricting step is a step of restricting movement of the portion of the handrail 4 to the upper layer side by the holder 11 attached to the handrail 4 in the upper-layer-side holding step. Further, the operator may first perform any one of the lower-layer-side restriction step and the upper-layer-side restriction step. The worker may perform the lower-layer-side restriction step and the upper-layer-side restriction step in parallel. The worker may perform the lower-layer-side restraining step after the lower-layer-side holding step, or may perform the lower-layer-side restraining step before the upper-layer-side holding step. Alternatively, the worker may perform the upper-layer-side restraining step after the upper-layer-side holding step, or may perform the upper-layer-side restraining step before the lower-layer-side holding step.

In the lower-layer-side restriction step, as shown in fig. 6, the worker brings the holding plate 12 attached to the upper side of the holder 11 of the handrail 4 in the lower-layer-side holding step into contact with the structure 8 arranged so as to face the handrail 4 from the upper-layer side in the longitudinal direction of the handrail 4. At this time, the end portions of the holding plate 12 in the left-right direction are in contact with the structure 8. Since the holder 11 in contact with the structure 8 is held so that the armrest 4 does not move in the longitudinal direction, movement of the portion of the armrest 4 to which the holder 11 is attached to the lower layer side is restricted. The structure 8 is, for example, an angle member for fixing the guide roller 7. At this time, the guide roller 7 is detached from the structure 8. The structure 8 is an example of a lower structure.

In the upper-layer-side restricting step, as shown in fig. 7, the worker brings the holding plate 12 attached to the upper side of the holder 11 of the handrail 4 in the upper-layer-side holding step into contact with the structure 8 arranged so as to face the handrail 4 from the direction perpendicular to the longitudinal direction of the handrail 4 from the lower-layer side in the longitudinal direction of the handrail 4. At this time, the end portions of the holding plate 12 in the left-right direction are in contact with the structure 8. Since the holder 11 in contact with the structure 8 holds the armrest 4 so as not to move in the longitudinal direction, the movement of the portion of the armrest 4 to which the holder 11 is attached to the upper layer side is restricted. The structure 8 is, for example, a corner member for fixing the safety device 10. At this time, the safety device 10 is detached from the structure 8. The structure 8 is an example of an upper structure.

As shown in fig. 8, the movement of the handrail 4 in the longitudinal direction is restricted in the lower and upper sides of the bent portion 9 of the handrail 4 by the lower and upper restricting steps. Thereby, the bent portion 9 of the armrest 4 is maintained so as not to be stretched by the self weight of the armrest 4 or the like. Since the bending portion 9 is maintained by the holder 11, the operator does not need to hold the armrest 4 by hand to maintain the bending portion 9. Therefore, the operator who lifts the handrail 4 in the bending process can perform the installation work of the driving wheels 5, the auxiliary work thereof, or other work in maintenance inspection.

Then, the operator performs the operation of the installation process of the driving wheel 5. The setting step is a step of setting the driving wheel 5 in the curved portion 9. The installation step includes installation such as arrangement and attachment of the driving wheel 5.

Then, the worker performs the lower-layer-side removing process and the upper-layer-side removing process. The lower-deck-side removing step is a step of removing the holder 11 attached in the lower-deck-side removing step from the armrest 4. The upper-stage removing step is a step of removing the holder 11 attached in the upper-stage removing step from the armrest 4. In the lower-deck side removing step and the lower-deck side removing step, the worker removes the holder 11 from the armrest 4, for example, by a step opposite to that when the holder is attached to the armrest 4. Further, the worker may perform any one of the lower-layer-side evacuation process and the upper-layer-side evacuation process. The worker may perform the lower-layer-side evacuation process and the upper-layer-side evacuation process in parallel.

After the driving wheels 5 of the handrail 4 are provided in this way, the operator performs the work such as the installation of the guide rail 6 to the outgoing path of the new handrail 4, the installation of the guide roller 7, and the installation of the safety device 10.

As described above, the holder 11 of embodiment 1 includes the pair of holding plates 12 and the adjustment portion 13. The width of each holding plate 12 in the lateral direction is wider than the width of the handrail 4 of the passenger conveyor 1 in the lateral direction. The pair of holding plates 12 are provided in parallel with each other with a space therebetween in the up-down direction. The pair of holding plates 12 sandwich and hold the armrest 4 at intervals spaced apart in the up-down direction. The adjustment unit 13 adjusts the holding strength of the pair of holding plates 12 to the handrail 4 by changing the interval between the pair of holding plates 12. The holder 11 contacts the structure 8 from one side in the longitudinal direction of the armrest 4, and thereby restricts movement of the portion of the armrest 4 held by the pair of holding plates 12 to the other side of the structure 8. The structure 8 faces the handrail 4 from a direction perpendicular to the longitudinal direction of the handrail 4 during the return of the handrail 4.

The method for installing the drive wheel 5 according to embodiment 1 includes a bending step, a lower-layer-side holding step, a lower-layer-side restricting step, an installing step, and a lower-layer-side removing step. The arrangement method is suitable for an inclined passenger conveyor 1 erected between an upper floor and a lower floor. The bending step is a step of bending the handrail 4 downward on the return side of the handrail 4 to form a bent portion 9. The lower-layer holding step is a step of attaching a holder 11 for holding the handrail 4 to a portion of the handrail 4 on the lower layer side than the bent portion 9. The lower-layer-side holding step is a step subsequent to the bending step. The lower-layer-side restricting step is a step of bringing the holder 11 attached to the handrail 4 in the lower-layer-side holding step into contact with the structure 8 on the lower layer side from the upper layer side in the longitudinal direction of the handrail 4, thereby restricting movement of the portion of the handrail 4 held by the holder 11 to the lower layer side of the structure 8. The structure 8 faces the handrail 4 from a direction perpendicular to the longitudinal direction of the handrail 4 during the return of the handrail 4. The lower-layer-side restriction step is a step subsequent to the lower-layer-side holding step. The setting step is a step of setting the drive wheel 5 for driving the handrail 4 in the bending portion 9 held by the holder 11. The setting step is a step subsequent to the lower-layer-side limiting step. The lower-layer-side removing step is a step of removing the holder 11 attached to the handrail 4 in the lower-layer-side holding step from the handrail 4. The lower layer side removing step is a step subsequent to the setting step.

With this structure, the bending portion 9 does not need to be maintained by the holding of the armrest 4 by a human hand. Therefore, even when a plurality of operators participate in the bending process or the like, other operators can perform other maintenance operations or the like while any operator performs the subsequent installation operation of the drive wheel 5. This further improves the efficiency of maintenance work of the passenger conveyor 1. In addition, other operators may assist the installation work of the driving wheels 5. Since the driving wheel 5 is a heavy object, the efficiency of the installation work itself of the driving wheel 5 can be improved by participation of an assisting person. Further, since it is not necessary to hold the armrest 4 by a human hand for a long time in order to maintain the bending portion 9, depending on the weight of the armrest 4 or the like, there are cases where an operation such as lifting of the armrest 4 in the bending process can be performed by one operator. In this case, the number of personnel required for maintenance work can be minimized. In addition, the bent portion 9 is held by the holder 11, and thus is stable during the setting work of the driving wheel 5. In addition, when the worker holds the drive wheel 5 by his/her hand, the bending portion 9 may be deformed by fatigue of the worker or the like during the installation work of the drive wheel 5. At this time, the operator who performs the setting work adjusts the amount of lifting of the armrest 4 by sounding or the like to the operator who holds the armrest 4. Here, when the operator holding the armrest 4 cannot see the bent portion 9, the adjustment of the lift amount may take time and effort because the lift amount is adjusted only by sounding from the operator performing the installation work. On the other hand, by maintaining the bent portion 9 using the holder 11, the bent portion 9 is not deformed and becomes stable during the installation work of the driving wheel 5. Therefore, the efficiency of the setting work of the driving wheel 5 is further improved. Further, since the holder 11 has a simple and compact structure, the work such as holding the armrest 4 can be more easily performed even in a narrow work space such as a return path.

Further, the at least one holding plate 12 contacts the structure 8 from one side in the longitudinal direction at the end in the lateral direction, thereby restricting movement of the portion of the armrest 4 held by the pair of holding plates 12 to the other side of the structure 8. For example, the length in the left-right direction from the center of the holding plate 12 to the portion in contact with the structure 8 is longer than the length in the left-right direction from the center of the armrest 4 to the structure 8.

With this configuration, the operator can restrict the movement of the armrest 4 by a simple operation of bringing the holding plate 12 into contact with the structure 8. Further improving the efficiency of maintenance work of the passenger conveyor 1.

The inner surfaces of the holding plates 12 in the vertical direction have contact surfaces 14 made of an elastic body.

With such a configuration, damage or the like to the portion of the armrest 4 held by the holding plate 12 is less likely to occur.

The adjustment portion 13 includes a bolt 16 and a nut 17. The adjustment portion 13 changes the interval between the pair of holding plates 12 by tightening the bolt 16 and the nut 17.

With this configuration, the worker can easily adjust the holding strength of the holding plate 12. Further, the operator can obtain a feeling of holding strength by the feel of tightening the bolt 16 and the nut 17, and therefore, damage to the armrest 4 due to excessive holding can be suppressed.

Further, the respective holding plates 12 are provided with through portions 15 at the end portions in the lateral direction. The bolts 16 pass through the through portions 15 of the respective holding plates 12 from the lower side upward with their heads facing downward. The nuts 17 are attached to the bolts 16 on the upper sides of the pair of holding plates 12.

With this configuration, the worker can perform the fastening operation from above the armrest 4. Therefore, workability of the work of attaching the holder 11 to the armrest 4 is further improved.

The method for installing the drive wheel 5 according to embodiment 1 includes an upper layer side holding step, an upper layer side restricting step, and an upper layer side removing step. The upper-layer 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 layer side of the bent portion 9. The upper-layer-side restricting step is a step of bringing the holder 11 attached to the handrail 4 in the upper-layer-side holding step into contact with the structure 8 on the upper layer side from the lower layer side in the longitudinal direction of the handrail 4, thereby restricting the movement of the portion of the handrail 4 held by the holder 11 to the upper layer side of the structure 8. The structure 8 faces the armrest 4 from a direction perpendicular to the longitudinal direction of the armrest 4 during return of the armrest 4 on the upper layer side of the structure 8 contacted by the holder 11 attached to the armrest 4 in the lower layer side holding step. The upper layer side restricting step is a step after the upper layer side holding step and before the setting step. The upper layer side removing step is a step of removing the holder 11 attached to the handrail 4 in the upper layer side holding step from the handrail 4. The upper layer side removing step is a step subsequent to the setting step.

Even if the movement of the portion of the armrest 4 on the lower layer side of the bent portion 9 is restricted by the armrest 4 on the lower layer side, if the side of the armrest 4 approaching the outgoing path is biased to the lower layer side by its own weight, the portion of the armrest 4 on the upper layer side of the bent portion 9 may be lifted up, and the bending of the bent portion 9 may be reduced. In contrast, since the movement of the portion of the armrest 4 on the upper layer side of the bent portion 9 is restricted by the holder 11 on the upper layer side, the bending portion 9 can be prevented from being stretched by lifting the portion of the armrest 4 on the upper layer side of the bent portion 9. This can maintain the bent portion 9 more stably, and thus the efficiency of the installation work of the drive wheel 5 can be further improved. Further, during the installation work of the driving wheels 5, the handrail 4 is caught by a part of rollers or the like provided on the passenger conveyor 1, and therefore, depending on the structure of the passenger conveyor 1, the weight of the handrail 4, or the like, the handrail 4 may not be easily moved. In such a case, there is no need to consider the influence of the stretching of the bent portion 9 caused by the lifting of the portion of the armrest 4 on the upper layer side of the bent portion 9. In this case, the worker may not use the holder 11 at a portion higher than the bent portion 9 in order to simplify maintenance work or the like.

The upper-layer-side restriction step may be a step preceding the bending step.

With this configuration, the bending portion 9 can be prevented from being pulled by the lifting of the portion of the armrest 4 on the upper layer side than the bending portion 9 during the bending process, and thus the bending portion 9 can be formed more easily by the operator. This further improves the efficiency of maintenance work of the passenger conveyor 1.

The through portion 15 may be a slit through which the bolt 16 can be inserted from a direction perpendicular to the vertical direction of the holder 11.

With this configuration, the bolt 16 and the nut 17 can be inserted into the through portion 15 without being completely separated. Therefore, the possibility of dropping the bolt 16 or the nut 17 during the work can be suppressed. This makes it difficult for the efficiency of maintenance work of the passenger conveyor 1 to be lowered.

The holder 11 may have a restricting portion that contacts the structure 8 separately from the pair of holding plates 12. The restricting portion is a portion that restricts movement of the portion of the armrest 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 in the longitudinal direction of the armrest 4. The restricting portion is, for example, a member fixed to the end portion of the arbitrary holding plate 12 in the lateral direction. Alternatively, the restriction portion may be a portion including a hook that contacts and hooks with one side of the structure 8. At this time, the pair of holding plates 12 is disposed 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, a belt, a wire, or a chain. The portion of the armrest 4 held by the pair of holding plates 12 is restrained from moving to the other side of the structure 8 by the tension of the linear member connecting the hook hung on the one side of the structure 8 and the pair of holding plates 12.

In addition, in a case where sufficient holding strength of the pair of holding plates 12 can be ensured, the adjusting portion 13 may be provided only at one end in the lateral direction of the holding plates 12. For example, in the case where the rigidity of the holding plate 12 is sufficiently high, the holding strength of the holding plate 12 can be ensured. Alternatively, when the rotation between the pair of holding plates 12 around the adjustment portion 13 is restricted, the holding strength of the holding plates 12 can be ensured. For example, each holding plate 12 is provided with a through hole or the like at an end portion on the side where the adjustment portion 13 is provided. A rotation stopper such as a rod-like member is inserted through the through-hole from the up-down direction. By passing the rotation stopper, rotation between the pair of holding plates 12 about the adjustment portion 13 about the vertical axis can be restricted. This can suppress a decrease in holding strength due to rotation of the holding plate 12.

The nut 17 of the adjustment portion 13 may be a nut that can be fastened without using a tool, such as a wing nut. Alternatively, the adjustment portion 13 may have a handle or the like that can be fastened without using a tool, instead of the nut 17. This can further improve the workability of the maintenance work of the passenger conveyor 1.

The bolts 16 of the adjustment unit 13 may be fixed to the lower holding plate 12 by nuts other than the nuts 17 for adjusting the holding strength of the holding plate 12. This can suppress the possibility of the bolt 16 falling down during the operation.

The holder 11 may also include a drop preventing member for preventing the components such as the bolt 16 and the nut 17 from dropping off. The drop preventing member is, for example, a linear member such as a rope, a belt, a wire, or a chain that connects the member such as the bolt 16 and the nut 17 to the arbitrary holding plate 12.

The holder 11 and the method of setting the drive wheel 5 using the holder 11 can also be applied to a work of replacing only the drive wheel 5 without replacing the handrail 4. The holder 11 and the method of setting the drive wheel 5 using the holder 11 can also be applied to an operation such as a disassembly inspection without replacing any component.

The passenger conveyor 1 may be, for example, an inclined moving slope or the like.

Industrial applicability

The handrail holder of the passenger conveyor and the handrail drive wheel setting method of the passenger conveyor according to the present invention can be applied to maintenance work of the passenger conveyor.

Description of the reference numerals

1: passenger conveyor, 2: riding and descending port, 3: steps, 4: armrests, 5: driving wheel, 6: guide rail, 7: guide roller, 8: structure, 9: bending part, 10: safety device, 11: holder, 12: holding plate, 13: adjustment part, 14: contact surface, 15: penetration portion, 16: bolts, 17: and (3) a nut.

Claims

1. A handrail holder for a passenger conveyor, comprising:

a pair of holding plates each having a width in a lateral direction that is wider than a width in the lateral direction of a handrail of the passenger conveyor, the holding plates being provided in parallel with each other at intervals in a vertical direction, and sandwiching and holding the handrail at the intervals in the vertical direction; and

an adjustment unit that adjusts the holding strength of the pair of holding plates to the handrail by changing the interval between the pair of holding plates,

the handrail holder of the passenger conveyor is configured to restrict movement of a portion of the handrail held by the pair of holding plates to the other side of the structure by coming into contact with the structure from one side in the longitudinal direction of the handrail, wherein the structure faces the handrail from a direction perpendicular to the longitudinal direction of the handrail during return of the handrail.

2. The handrail holder of a passenger conveyor according to claim 1, wherein,

at least one of the pair of holding plates contacts the structure at an end in a left-right direction, thereby restricting movement of a portion of the armrest held by the pair of holding plates to the other side of the structure.

3. The handrail holder of a passenger conveyor according to claim 1 or 2, wherein,

the inner surfaces of the pair of holding plates in the vertical direction have contact surfaces made of an elastic body.

4. The holder of a handrail of a passenger conveyor according to any one of claims 1 to 3, wherein,

the adjustment portion has a bolt and a nut, and the interval between the pair of holding plates is changed by fastening the bolt and the nut.

5. The handrail holder of a passenger conveyor according to claim 4, wherein,

in each of the pair of holding plates, a through portion is provided at an end portion in the left-right direction,

the bolt passes through the through parts of the pair of holding plates from the lower to the upper in a way that the head parts are downward,

the nut is attached to the bolt on the upper side of the pair of holding plates.

6. The handrail holder of a passenger conveyor according to claim 5, wherein,

the through portion is a slit into which the bolt can be inserted from a direction perpendicular to the vertical direction.

7. A method of setting a drive wheel of a handrail of a passenger conveyor, comprising:

a bending step of bending a handrail of an inclined passenger conveyor, which is installed between an upper layer and a lower layer, downward on a return side of the handrail to form a bending portion;

a lower-layer-side holding step of attaching a lower-layer-side holder for holding the handrail to a portion of the handrail on a lower layer side than the bent portion after the bending step;

a lower-side restricting step of restricting movement of the portion of the handrail held by the lower-side holder to a lower side of a lower-side structure facing the handrail from a direction perpendicular to a longitudinal direction of the handrail during return of the handrail by bringing the lower-side holder into contact with the lower-side structure from the upper side in the longitudinal direction of the handrail after the lower-side holding step;

a setting step of setting a drive wheel for driving the handrail at the bending portion maintained by the lower holder after the lower limiting step; and

and a lower-layer-side removing step of removing the lower-layer-side holder from the armrest after the setting step.

8. The method for setting a drive wheel of a handrail of a passenger conveyor according to claim 7, wherein,

the method for setting the driving wheel of the handrail of the passenger conveyor comprises the following steps:

an upper-layer-side holding step of attaching an upper-layer-side holder for holding the handrail to a portion of the handrail on an upper layer side than the bent portion;

an upper-layer-side restricting step of restricting movement of the portion of the handrail held by the upper-layer-side holder to an upper layer side of the upper-layer-side structure by bringing the upper-layer-side holder into contact with the upper-layer-side structure from a lower layer side in a longitudinal direction of the handrail after the upper-layer-side holding step and before the setting step, wherein the upper-layer-side structure faces the handrail from a direction perpendicular to the longitudinal direction of the handrail at a position on an upper layer side of the handrail where the handrail returns to the path than the lower-layer-side structure; and

and an upper layer side removing step of removing the upper layer side holder from the armrest after the setting step.

9. The method for setting a drive wheel of a handrail of a passenger conveyor according to claim 8, wherein,

the upper-layer-side restriction step is a step preceding the bending step.