JP2015000810A - Passenger conveyor renewal method and hand truck used for the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To transport efficiently plural machines and materials to be removed from a new truss in a passenger conveyor renewal method which installs a new truss in the inside space of an existing truss.SOLUTION: A passenger conveyor renewal method related to the present invention is to install in order plural truss segments into which a new truss 3 is split in the inside space of an existing truss 1. Included are a new truss construction process in which a new truss 3 is constructed and a left and right pair of guide rails 36, 36 are constructed for guiding movement of a left and right pair of step chains constituting a passenger conveyor in the new truss 3, and a machine and material removing process in which a transportation hand truck 8 is constructed on the pair of guide rails 36, 36, machines and materials to be removed from the new truss are loaded on the transportation hand truck 8, and the transportation hand truck 8 is moved with the guide rails 36, 36 as a track.

Description

  The present invention relates to a method for renewing a passenger conveyor such as an escalator.

2. Description of the Related Art Conventionally, a renewal method has been known in which, in an escalator, a new truss is installed in the internal space of an existing truss without removing the existing truss, and the new truss is combined with the existing truss (Patent Document 1).
According to the renewal method, it is possible to shorten the renewal work period.

In such a renewal method, a renewal method is known in which a new truss is divided into a plurality of truss segments in the longitudinal direction, and these truss segments are sequentially installed in the internal space of the existing truss (patent) Reference 2).
According to the renewal method, all the truss segments are installed in the internal space of the existing truss while the internal space of the existing truss is moved along the existing truss, and these truss segments are connected to each other, thereby A new truss can be completed in the interior space.

  Further, in such a renewal method, one or a plurality of gate-type liftings are provided in each of the upper horizontal part, the inclined part and the lower horizontal part of the existing truss in the step of moving the truss segment along the existing truss. A construction method in which equipment is deployed and the truss segment is lifted using the chain blocks provided in these portal lifting devices, and the truss segment is moved from the lower horizontal part of the existing truss to the upper horizontal part via the inclined part. Has been proposed (Patent Document 3).

Furthermore, in the renewal method of moving the truss segment along the existing truss, four transport tools having wheels that can roll on the upper surface of the existing truss are attached to the front, rear, left, and right of the truss segment, and the truss is supported by the transport tool. It has been proposed to transport segments (Patent Document 4).
According to the renewal method, a plurality of truss segments that should constitute the newly installed truss can be easily transported along the existing truss.

JP 58-152779 A JP 2005-314085 A JP 2008-44684 A JP 2010-70313 A

In the renewal method described above, after installing a new truss in the interior space of the existing truss, disassemble the portal lifting device used for the installation of the new truss into a plurality of members, and these members and equipment such as transportation tools (Hereinafter collectively referred to as equipment) is removed from the new truss.
In this case, it is necessary to lower a plurality of equipment from the upper floor side to the lower floor side of the newly installed truss. For this reason, conventionally, the equipment has been transported using, for example, stairs and elevators.

However, transportation of equipment using stairs and elevators has a problem in that work efficiency is poor and it takes time to remove the equipment.
Accordingly, an object of the present invention is to provide a renewal method for a passenger conveyor in which a newly installed truss is divided into a plurality of truss segments in the longitudinal direction and these truss segments are sequentially installed in the internal space of the existing truss. The present invention is to provide a renewal method and a carriage used for the method, which can efficiently transport a plurality of equipment to be removed from the truss.

The renewal method of the passenger conveyor according to the present invention is such that the newly installed truss to be installed in the internal space of the existing truss is divided into a plurality of truss segments in the longitudinal direction, and these truss segments are sequentially placed inside the existing truss. It will be installed in the space,
A pair of left and right step chains forming a passenger conveyor in the newly installed truss and a plurality of truss segments are sequentially transported along the existing truss and the front and rear truss segments are connected to each other. A new truss assembling process that constitutes a pair of left and right guide rails for guiding the movement of
The transport carriage is configured on the pair of guide rails, the equipment to be removed from the newly installed truss is mounted on the transport carriage, and the equipment is removed by moving the transport carriage using the guide rail as a track. For removing the equipment to be transported.

  According to the renewal method of the present invention, a pair of left and right guide rails for guiding the movement of the pair of left and right step chains constituting the passenger conveyor is configured in the newly installed truss, and the guide rail is used as a track. Equipment to be removed can be transported along the new truss by means of a transport cart.

  In a specific aspect, the transport carriage includes a load carrier member and a pair of left and right roller rows that are arranged on the left and right side portions of the load carrier member and roll on the pair of guide rails. It has the same design specifications as the roller chain of the step chain.

  According to this specific aspect, when manufacturing a pair of left and right roller rows to be arranged on both the left and right sides of the loading platform member, the same design as the roller rows of the step chain can be adopted.

  In another specific aspect, the transport carriage is configured by connecting a load carrier member to a pair of left and right step chains attached to a newly-installed truss, and by rolling a roller row of the step chain on a guide rail. The carrier member is moved along the guide rail.

  According to the specific aspect, the pair of left and right step chain rollers attached to the newly installed truss is used as the pair of left and right roller trains to be arranged on both sides of the loading platform member. Need not be deployed.

The carriage used for the renewal method of the passenger conveyor according to the present invention,
A cargo bed member;
A pair of left and right roller rows that are arranged on the left and right side portions of the loading platform member and roll on a pair of left and right guide rails for guiding the movement of the step chain constituting the passenger conveyor, , Having the same design specifications as the roller train of the step chain.

  In a specific aspect, each of the pair of left and right roller rows includes a plurality of rollers and a link member that connects the front and rear rollers to each other, and the left and right rollers are connected to each other by a connecting shaft at a plurality of positions in the front and rear direction. The carrier member is installed on the connecting shaft.

  According to this specific aspect, the roller, the link member, and the connecting shaft that form the roller row of the step chain can be used as the roller, the link member, and the connecting shaft that constitute the roller row, respectively.

  According to the renewal method of the passenger conveyor and the transport carriage used in the method according to the present invention, a plurality of equipment to be removed from the new truss can be efficiently transported along the new truss.

FIG. 1 is a perspective view showing a first step in the renewal method of the present invention. FIG. 2 is a perspective view showing a second step in the renewal method. FIG. 3 is a perspective view showing a third step in the renewal method. FIG. 4 is a perspective view showing a fourth step in the renewal method. FIG. 5 is a perspective view showing a fifth step in the renewal method. FIG. 6 is a perspective view showing a transport tool used in the renewal method. FIG. 7 is a side view showing an existing truss. FIG. 8 is a side view showing a plurality of truss segments constituting the new truss. FIG. 9 is a side view showing a process of moving the transport carriage along the guide rail of the newly installed truss. FIG. 10 is a plan view of the transport carriage. FIG. 11 is a front view of the transport cart. FIG. 12 is a side view of the roller array. FIG. 13 is a perspective view of the transport carriage. FIG. 14 is an exploded perspective view of the transport carriage. FIG. 15 is a front view showing a state in which the transport carriage is installed on the guide rail of the newly installed truss. FIG. 16 is a front view showing a state in which the step chain and the step are installed on the guide rail of the new truss.

  Hereinafter, the embodiment in which the present invention is applied to an escalator renewal method will be described in detail with reference to the drawings. In the following description, the direction from the lower floor to the upper floor along the longitudinal direction of the truss is referred to as “front”, and the opposite direction is referred to as “rear”.

  The escalator renewal method according to an embodiment of the present invention is to install a new truss in the internal space of the existing truss without removing the existing truss. First, in the first step, FIG. 1 and FIG. As shown, parts and devices (driving device, step, handrail drive mechanism, control device, etc.) other than the existing truss (1) are removed from the escalator, leaving only the existing truss (1).

  The existing truss (1) is composed of an upper floor horizontal part (11), an inclined part (12) and a lower floor side horizontal part (13), and the upper floor side horizontal part (11) to the inclined part (12). And an upper surface (1a) extending to the lower horizontal portion (13).

  In addition, as shown in FIG. 8, the new truss (3) is arranged in the longitudinal direction in the upper floor side horizontal truss segment (31), the upper floor side bent truss segment (32), and a plurality of intermediate truss segments (33) ( 33), the lower floor side truss segment (34), and the lower floor side horizontal truss segment (35).

The truss segments (31) to (35) include a plurality of components and devices (drive device, drive wheel, guide rail, etc.) that can be mounted in advance among a plurality of components and devices that constitute the escalator. It is installed.
FIG. 8 shows one example of division of the new truss (3), and an appropriate division form is adopted according to the total length of the new truss (3).
In the following description, the truss segments (31) to (35) constituting the new truss (3) will be collectively referred to as a truss segment (30) as appropriate.

  Next, in the second step, as shown in FIG. 2, the gate-type lifting device (2a) is installed on the lower horizontal part (13) of the existing truss (1) and the upper floor side of the existing truss (1). A portal lifting device (2b) is installed on the horizontal part (11).

Subsequently, in the third step, as shown in FIG. 3, the chain block (20) provided in the lower-floor side gate-type lifting device (2a) and the upper-floor side gate-type lifting device (2b) is used. The truss segment (30) is pulled up along the upper surface of the existing truss (1).
Here, the truss segment (30) is provided with transport tools (4) at four locations, front, rear, left and right, respectively, and the four transport tools (4) extend over the entire length of the existing truss (1). The truss segment (30) is conveyed by being disposed on the existing upper surface and moving along the upper surface.

  As shown in FIG. 6, the carrier (4) slides along the flat base member (41) to be fastened to the upper surface of the truss segment (30) and the upper surface (1a) of the existing truss (1). It includes a possible sled member (43), and a telescopic mechanism (42) composed of an inner cylinder and an outer cylinder interposed between the base member (41) and the sled member (43).

A first adjustment bolt (44) is screwed into the base member (41), and the tip surface of the first adjustment bolt (44) is in contact with the end surface of the inner cylinder of the expansion / contraction mechanism (42).
Therefore, by screwing the first adjustment bolt (44) into the base member (41), the expansion / contraction mechanism (42) is extended and its length is increased. Conversely, by unscrewing the first adjusting bolt (44), the expansion / contraction mechanism (42) contracts due to the weight of the truss segment (30), and the length thereof decreases.

  Further, a second adjustment bolt (45) for fixing the base member (41) to the truss segment (30) is screwed into the base member (41).

With the base members (41) of the four transport tools (4) fastened and fixed to the front, rear, left and right of the truss segment (30), the sled members (43) of the four transport tools (4) are attached to the existing truss (1). When sliding along the upper surface, the length of the telescopic mechanism (42) is changed by operating the first adjustment bolt (44), so that the upper surface (1a) of the existing truss (1) and the truss segment (30) Adjust the distance from the top surface.
Accordingly, the truss segment (30) can be transported in the internal space of the existing truss (1) without causing the truss segment (30) to interfere with the existing truss (1).

  After the truss segment (30) is transported to a predetermined position along the upper surface (1a) of the existing truss (1), the fastening of the truss segment (30) to the base member (41) is loosened and the second adjusting bolt (45 ) To increase / decrease the screwing amount with respect to the base member (41), thereby raising and lowering the truss segment (30) in the internal space of the existing truss (1), and the upper surface (1a) of the existing truss (1) Adjust the distance from the upper surface of the truss segment (30).

Thereby, the truss segment (30) can be set at a predetermined height position in the internal space of the existing truss (1).
As a result, it is possible to connect the truss segment (30) with the previously installed truss segment (30).

  As described above, four transport tools (4) are attached to the truss segment (30) to be transported, and each of the truss segments is moved while moving these four transport tools (4) along the upper surface of the existing truss (1). By transporting (30) and connecting the front and rear truss segments (30) and (30) to each other, a new truss (3) is completed in the internal space of the existing truss (1) as shown in FIG.

  In the fourth step, the lower floor side gate-type lifting device (2a) and the upper floor side gate-type lifting device (2b) are disassembled into a plurality of members from the existing truss (1), and these members, transporting tools (4), etc. Are transported from the upper floor side to the lower floor side along the new truss (3) and removed from the new truss (3) as shown in FIG.

  When transporting a plurality of equipment from the upper floor side to the lower floor side along the new truss (3), as shown in FIG. 9, a pair of left and right guide rails (36) attached to the new truss (3) (36) A transport cart (8) is installed on the transport cart (8). Equipment to be removed is placed on the transport cart (8), and the transport cart (8) is guided along the guide rail (36) by the chain block (20). To move from the upper floor to the lower floor.

  When transporting equipment to be removed before disassembling the upper floor side gate type lifting device (2b), the chain block (20) can be suspended from the upper floor side gate type lifting device (2b). When transporting the disassembled equipment in the process of disassembling the upper floor side gate type lifting device (2b), the chain block (20) is suspended by using the leg member (21) which will remain at the end.

  Finally, as shown in FIG. 16, the renewal of the escalator is completed by carrying out a final process of attaching a plurality of steps (7), handrails (9), control devices and the like to the newly installed truss (3).

In the final process, a pair of left and right step chains (85) and (85) are stretched along a pair of left and right guide rails (36) and (36) attached to the new truss (3). Step (7) is connected to (85).
Each step chain (85) includes a roller row (86) formed by arranging a plurality of rollers, and a plurality of connecting shafts (87) for connecting the left and right rollers to each other at a plurality of front and rear positions.

  The transport carriage (8) for transporting a plurality of equipments from the upper floor side to the lower floor side along the newly installed truss (3) in the fourth step, as shown in FIGS. A pair of left and right roller rows (80) and (80) are provided on the left and right sides of the load carrier member (84).

Each roller row (80) is composed of a plurality of rollers (81) and a plurality of link members (82) connecting the front and rear rollers (81) (81) to each other, and both roller rows (80) ( A plurality of rollers (81) constituting 80) can roll on a pair of left and right guide rails (36) (36) attached to the newly installed truss (3).
Further, the left and right rollers (81) (81) are connected to each other by a connecting shaft (83) at a plurality of locations in the front-rear direction, and a loading platform member (84) is installed on the connecting shaft (83). Yes.

Here, the components of the transport carriage (8) other than the cargo bed member (84), that is, the pair of left and right roller rows (80) and (80) and the plurality of connecting shafts (83) are a pair of left and right steps shown in FIG. Each of the pair of left and right roller rows (86) (86) and the plurality of connecting shafts (87) constituting the chains (85) (85) has the same structure and is designed with the same specifications.
Therefore, the design of the step chain (85) can be diverted to the design of the roller row (80), thereby reducing the cost.

  According to the transport carriage (8), the plurality of rollers (81) constituting the left and right roller rows (80) (80) roll on the guide rails (36) (36) of the newly installed truss (3). By doing so, the transport carriage (8) can be moved along the guide rail (36).

  Further, since the roller row (80) has a configuration in which a plurality of rollers (81) are connected to each other by a link member (82), the work of attaching the roller row (80) to the side portion of the load carrier member (84) is performed. It is easy, and it is also easy to transport the roller array (80) as a single unit.

  As shown in FIG. 9, the guide rail (36) is bent between the upper floor horizontal portion and the inclined portion of the newly installed truss (3). Although it cannot be used for moving, the load carrier member (84) is composed of a plurality of load carrier parts arranged in the front and back, and according to the structure in which these load carrier parts are connected so as to be bent, the guide rail (36) It is possible to pass through the bent portion.

  According to the renewal method of the escalator, four transport tools (4) are attached to the truss segment (30), and the sled member (43) of the transport tool (4) is slid along the upper surface of the existing truss (1). By doing so, the truss segment (30) can be moved, so that the truss segment (30) can be transported easily.

  Moreover, according to the renewal method of the above escalator, a plurality of equipment to be removed from the new truss (3) can be efficiently transported along the new truss (3) by means of the transport carriage (8). The construction period can be shortened.

  In addition, each part structure of this invention is not restricted to the said embodiment, A various deformation | transformation is possible within the technical scope as described in a claim. For example, in the above embodiment, as the transport carriage (8), roller rows (80) and (80) are arranged on both sides of the cargo carrier member (84), and the roller row (80) is placed on the guide rail (36). However, the present invention is not limited to this, and the carrier member is attached to the step chain (85) with the step chain (85) attached to the newly-installed truss (3). It is also possible to adopt a configuration in which the transport carriage (8) is moved by connecting (84) and driving the step chain (85) by a motor.

  In the above embodiment, the work of lowering the transport carriage (8) from the top to the bottom along the guide rails (36) and (36) of the new truss (3) is performed. It is also possible to transport the equipment from the lower floor side to the upper floor side by pulling it up.

  Furthermore, in the above embodiment, after the new truss (3) is completed at the factory, the new truss (3) is divided into a plurality of truss segments (30), and these truss segments (30) are renewed. However, after manufacturing several truss segments (30) that should constitute the new truss (3) separately at the factory, the factory does not assemble these truss segments (30). It is also possible to carry it to the site of renewal construction.

(1) Existing truss
(2a) Lower gate type lifting equipment
(2b) Upper floor side gate type lifting equipment
(20) Chain block
(21) Leg member
(3) New truss
(30) Truss segment
(4) Carrier
(36) Guide rail
(8) Transport cart
(80) Roller train
(81) Laura
(82) Link member
(83) Connecting shaft
(84) Carrier material
(85) Step chain

Claims (5)

Renewal of the passenger conveyor, in which the new truss to be installed in the internal space of the existing truss is divided into a plurality of truss segments in the longitudinal direction, and these truss segments are sequentially installed in the internal space of the existing truss In the construction method,
A pair of left and right step chains forming a passenger conveyor in the newly installed truss and a plurality of truss segments are sequentially transported along the existing truss and the front and rear truss segments are connected to each other. A new truss assembling process that constitutes a pair of left and right guide rails for guiding the movement of
The transport carriage is configured on the pair of guide rails, the equipment to be removed from the newly installed truss is mounted on the transport carriage, and the equipment is removed by moving the transport carriage using the guide rail as a track. A renovation method for a passenger conveyor, characterized in that it has an equipment removal process for transporting it.   The transport carriage includes a cargo bed member and a pair of left and right roller rows that are arranged on the left and right sides of the cargo bed member and roll on the pair of guide rails, and each roller row is a roller of the step chain. The renewal method of the passenger conveyor according to claim 1, which has the same design specifications as the row.   The transport carriage is configured by connecting a load carrier member to a pair of left and right step chains attached to a newly installed truss, and by rolling the roller chain of the step chain on the guide rail, the carrier member is moved along the guide rail. The renewal construction method of the passenger conveyor according to claim 1, wherein Renewal method for passenger conveyors in which a new truss to be installed in the internal space of an existing truss is divided into multiple truss segments in the longitudinal direction, and these truss segments are sequentially installed in the internal space of the existing truss A transport carriage used for
A cargo bed member;
A pair of left and right roller rows that are arranged on the left and right side portions of the loading platform member and roll on a pair of left and right guide rails for guiding the movement of the step chain constituting the passenger conveyor, A carriage used for a renewal method for a passenger conveyor, having the same design specifications as the roller train of the step chain.   Each of the pair of left and right roller rows includes a plurality of rollers and link members that connect the front and rear rollers to each other, and the left and right rollers are connected to each other by a connecting shaft at a plurality of positions in the front and rear direction. The conveyance trolley | bogie of Claim 4 with which the said loading platform member is installed on the top.

Images