Platform door cable installation method and platform door cable installation structure

Abstract

To provide a platform door cable installation method and a platform door cable installation structure which have enhanced workability of a cable installation construction.SOLUTION: An installation method of a platform door cable C1 is a platform door cable installation method of electrically connecting a platform door cable to platform doors 11 and 12 arranged along an outer edge E at a line side of a banking platform, and has a cable trough installation step of orienting an internal face of a bottom plate toward a substantially upper direction with respect to a cable trough 2 where a substantially U-shaped opening space is formed and a hand hole 22 is pierced on a side plate, and exposing the side plate where the hand hole 22 is pierced to the line side to be installed, and a cable installation step of installing the platform door cable C1 by using the hand hole 22 so as to pass through the substantially U-shaped opening space of the installed cable trough 2.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a method for installing a platform door cable that is electrically connected to a platform door installed on a platform, and an installation structure for a platform door cable. [Background technology]

[0002] Currently, research is being conducted on the installation method and structure of a platform door cable. For example, as shown in Fig. 1(a) to Fig. 1(b), a conventional platform door cable installation structure 8 includes platform doors 81 and 82 each consisting of door housings 811 and 821, door control units 812 and 822, and doors 813 and 823, a bulkhead 83 connecting the platform doors 81 and 82, a tip tile 84 supporting them from below, and platform door bases 85 and 86 installed in a space obtained by excavating the embankment constituting the platform base F81 and exposed to the track side while being spaced apart from each other. In this case, the conventional platform door cable installation structure 8 includes a platform door cable C8 installed so as to pass through cable routes R85 and R86 in the platform door bases 85 and 86 and a cable route R80 installed in the platform base F81 below the platform surface F82, thereby electrically connecting the platform doors 81 and 82. However, in the conventional platform door cable installation structure 8, the appearance of the platform door cable C8 cannot be visually confirmed during installation and maintenance work of the platform door cable C8, and the work requires peeling off part of the platform surface layer F82, which causes problems in workability. In relation to this installation structure, an invention has been disclosed in which a cable is installed along the back surface of multiple braille blocks that are installed continuously on the platform (Patent Document 1).

[0003] As another example of the conventional platform door cable installation structure 8, as shown in Figs. 2(a) to 2(c), a modified version of the conventional platform door cable installation structure 8 has been proposed, which includes a hollow foundation block 85' arranged between each platform door foundation portion 85, 86, a substantially L-shaped cable cabinet 91 installed inside the block, a PC (Prestressed Concrete) plate 92 that supports the end tile 84 planarly, and a PC plate support cross beam 93 that bears compressive forces in the up and down directions. The bulkhead 83 is fixed to the foundation block 85' by, for example, bolts B83. The cable cabinet 91 is fixed to the platform foundation portion F81 by bolts B91, and the PC plate support cross beam 93 is fixed to the platform foundation portion F81 by bolts B91 and bolts B93, respectively. The PC plate support cross beam 93 is provided with an insertion hole 930 through which the platform door cable C8 can be inserted. At this time, in the conventional platform door cable installation structure 8, the platform door cable C8 is installed so as to pass through the cable routes R85 and R86 and the cable route R91 installed in the space obtained by excavating the platform foundation F81 below the tip tile 84, so that the man-hours for excavating the platform foundation F81 can be reduced. In addition, since the cable cabinet 91 opens to the track side, the platform door cable C8 in the cable cabinet 91 can be visually checked without performing removal work or the like. However, according to this example, it is necessary to excavate the platform foundation F81 by an amount equivalent to the volume of the foundation block 85' larger than the cable cabinet 91, which causes a problem in workability. When a large foundation block is not used, it is necessary to narrow the interval between the PC board cross beams or the steel cross beams to reduce the load on the cable cabinet 91, but in the case of an existing platform, it may not be possible to adjust the interval between the PC board support cross beams or the steel cross beams.

[0004] In relation to this installation structure, a cable laying structure for platform doors has been disclosed which comprises: one end of a plurality of cross girders supported on a support pile buried on the side of the existing embankment platform, extending toward the track side and arranged in parallel; and a cable cabinet in a housing having a longitudinal direction, with a vertical wall and a bottom panel and a substantially L-shaped cross section; between adjacent cross girders of the plurality of cross girders, an embankment excavation space of substantially the same height as that of the cross girders is formed; the cable cabinet is inserted and positioned in the embankment excavation space so that the vertical wall forms an earth retaining wall for excavation in the depth direction of the embankment excavation space; a cable pass-through hole corresponding to the position where the cable cabinet will be inserted and positioned in the embankment excavation space is formed in the cross girders; and a cable for supplying power and control signals which is placed in the cable cabinet is connected to the cable cabinet in the adjacent embankment excavation space through the cable pass-through hole formed in the cross girders (Patent Document 2). Patent Document 2 discloses an invention in which an embankment excavation space of approximately the same height as the cross beams is formed between adjacent cross beams of multiple cross beams, and a cable cabinet is used in the embankment excavation space, which has a vertical wall and a bottom panel and is approximately L-shaped in cross section with an opening on the track side. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2012-245841 A [Patent Document 2] Patent No. 5848483 Summary of the Invention [Problem to be solved by the invention]

[0006] According to the method of installing cables for platform doors disclosed in Patent Document 1, cable installation work and maintenance work can be easily performed simply by installing and removing the braille blocks. This improves workability in that it is not necessary to peel off a part of the platform surface layer F82. However, according to the method of installing cables for platform doors disclosed in Patent Document 1, there are problems with workability in that it is necessary to excavate the platform base part F81 along the arrangement of the braille blocks and it is time-consuming to remove the braille blocks during maintenance.

[0007] In addition, the cable cabinet disclosed in Patent Document 2 has an L-shaped cross section and no vertical wall on the track side, so that, for example, depending on the strength of the multiple cross beams themselves and the arrangement interval between adjacent cross beams, the support strength of the cross beam against the load from above is insufficient, and there is a problem that a cable cabinet having a vertical wall and a bottom plate, a substantially L-shaped cross section, and an open side on the track side cannot be used. In addition, it is necessary to excavate the embankment to secure a space for installing multiple cross beams and the support piles that support them, and in addition, there is a problem that the workability cannot be improved in that it is time-consuming to install the cross beams according to the above-mentioned arrangement interval. In addition, if a cable cabinet with vertical walls on both sides of a normal bottom plate is used to solve the lack of support strength, there is no opening on the platform side, so for example, when the cable cabinets are arranged in a row, work cannot be done from the platform side at all, and work must be done from the openings at both ends of the longitudinal direction of the arranged cabinets, which is a problem that the workability is significantly deteriorated.

[0008] Therefore, the present invention has been devised in consideration of the above-mentioned problems, and its purpose is to provide a method for installing a cable for platform doors and a structure for installing a cable for platform doors, which improves the workability of cable installation work by using a cable trough in which a substantially U-shaped opening space is formed by two opposing side plates and a bottom plate and a hand hole is drilled in one of the side plates. Furthermore, according to the structure for installing a cable for platform doors, by stably connecting adjacent cable troughs using a lightweight cable trough, it is not necessary to move the cable trough after installation, and the connection structure of adjacent cable troughs is stably maintained even in the event of an earthquake, etc., so that damage to the cable arranged in the cable trough can be prevented and the cable can be safely protected. [Means for solving the problem]

[0009] The method for installing a platform door cable in the first invention is a method for installing a platform door cable that is electrically connected to platform doors that are arranged along the outer edge of the track side of an embankment platform, and is characterized in having a cable trough installation step of installing a resin cable trough consisting of two opposing side panels and a bottom panel, in a space formed below the platform doors, where a substantially U-shaped opening space is formed at the upper ends of the two side panels to support a load from above, and in which a handhole is drilled in one of the side panels, with the inner surface of the bottom panel orientated substantially upwardly, exposing the side panel with the handhole drilled in it to the track side, and a cable installation step of installing the platform door cable using the handhole so that it passes through the opening space of the cable trough installed in the cable trough installation step.

[0010] The method for installing a platform door cable according to the second invention is the same as that according to the first invention, characterized in that the cable trough installation step further includes a cable trough connecting step of installing a plurality of the cable troughs each having a fitting receiving portion formed on its inner surface, and repeatedly fitting and fixing the fitting receiving portion formed on the cable trough installed in the cable trough installation step to another fitting receiving portion formed on another adjacent cable trough with a connector, thereby connecting the plurality of cable troughs. Here, it is preferable to cover the trough body with a trough cover because the support load of the trough can be made more uniform by covering the trough body with a trough cover than by supporting the PC plate or the covering plate at the upper end of the side plate without covering the trough cover.

[0011] The third invention is a method for installing cables for platform doors according to the first or second invention, characterized in that the cable trough installation process includes either placing a trough cover on the upper part of the two side plates of the cable trough, or placing a PC plate across the upper part of the two side plates.

[0012] The fourth invention is a method for installing cables for platform doors, which is characterized in that, in the first or second invention, the cable trough installation process installs the cable trough in the space with a covering plate installed above.

[0013] The fifth invention relates to a platform door cable installation structure in which a platform door cable is installed and is electrically connected to platform doors arranged along the outer edge of the embankment platform on the track side, and comprises a resin cable trough which is installed in a space formed below the platform doors and has a substantially U-shaped opening space formed by two opposing side plates and a bottom plate, and a platform door cable installed so as to pass through the opening space of the cable trough, and is characterized in that a handhole is drilled in one of the side plates, the inner surface of the bottom plate is oriented substantially upwardly and the side plate with the handhole drilled in it is installed so as to be exposed to the track side.

[0014] The installation structure for a cable for platform doors in the sixth invention is characterized in that, in the fifth invention, it further comprises a connector that connects adjacent cable troughs to each other, and the cable trough has an inner surface on which an engagement receiving portion into which the connector is engaged is formed, and the engagement receiving portion and another engagement receiving portion formed on the inner surface of another adjacent cable trough are repeatedly engaged and fixed by the connector to be connected to the other cable trough, thereby obtaining a connection structure in which a plurality of the cable troughs are connected.

[0015] The seventh invention relates to a platform door cable installation structure according to the sixth invention, and is characterized in that the connector is flat and has two opposing recessed fitting portions, the cable trough has fitting receiving portions protruding from the inner surfaces of the two side plates, and the fitting receiving portion and the other fitting receiving portion protruding from the inner surfaces of the two opposing side plates of the other cable trough are repeatedly clamped and fitted and fixed by the two fitting portions to obtain a connecting structure that connects the multiple cable troughs. Here, the flat connector is usually made of resin, but may be made of metal such as an aluminum alloy.

[0016] The eighth invention is a platform door cable installation structure according to the sixth invention, characterized in that the connector is formed in a substantially U-shape with two opposing vertical plate parts and one horizontal plate part integrally via the horizontal plate parts, and has a concave fitting part on each of the outer surfaces of the two vertical plate parts, and the cable trough has the fitting receiving part protruding from each of the outer surfaces of the two vertical plate parts, and the fitting receiving part and the other fitting receiving part protruding from the inner surface of the two opposing side plates of the other cable trough are clamped and fitted and fixed by the fitting parts of the two vertical plate parts, respectively, to obtain a connection structure connected to a plurality of the cable troughs. Note that the substantially U-shaped member is preferably integrally molded by injection molding or the like using a resin, but may be made of metal. The vertical plate part and the horizontal plate part may be integrated by bonding or the like.

[0017] The installation structure for a cable for platform doors in the 9th invention is characterized in that, in the 6th invention, the connector is flat, and the cable trough has a set of opposing claw-shaped fitting receiving portions protruding from the inner surface of the bottom plate at a distance from each other along the direction in which the two side plates face each other, and the connector is clamped and fixed between the fitting receiving portion and a set of opposing claw-shaped other fitting receiving portions protruding from the inner surface of the bottom plate of the other cable trough at a distance from each other in the direction in which the two side plates of the other cable trough face each other, and a connecting structure for connecting to a plurality of the cable troughs is obtained by repeatedly clamping and fixing the connector between the fitting receiving portion and a set of opposing claw-shaped other fitting receiving portions protruding from the inner surface of the bottom plate of the other cable trough at a distance from each other in the direction in which the two side plates of the other cable trough face each other, thereby obtaining a connecting structure for connecting to a plurality of the cable troughs.

[0018] The 10th invention is a cable installation structure for platform doors, which is characterized in that, in any of the 4th to 9th inventions, the cable trough is provided with a handhole notched from the upper end of the side panel. Effect of the Invention

[0019] According to the first to fourth inventions, the method for installing a platform door cable includes a cable trough installation step of installing a cable trough having a substantially U-shaped opening space in a space formed below the platform door by orienting the inner surface of the bottom plate substantially upward and exposing a side plate having a hand hole drilled therein to the track side, and a cable installation step of installing a platform door cable using a hand hole so as to pass through the opening space of the installed cable trough. Therefore, the cable trough can be installed without installing foundation blocks, cross beams, etc., and the amount of embankment excavation can be reduced. This can improve the workability of the cable installation work. In addition, wiring work can be performed independently of civil engineering work, such as installing a platform door cable in the cable trough after installing the tip tile and the platform door. This can improve the workability of the cable installation work. In addition, the two side plates can support the load from above the cable trough, making it possible to omit the installation of support members such as foundation blocks and cross beams that support loads in the vertical direction, and to widen the interval between the cross beams to be installed. This can improve the workability of the cable installation work.

[0020] In particular, according to the second invention, the method further includes a cable trough connecting step of connecting a plurality of cable troughs by fitting and fixing a fitting receiving portion formed on one cable trough to another fitting receiving portion formed on another adjacent cable trough with a connector. Therefore, after the installation of a plurality of cable troughs, the cable troughs can be connected without moving them, and the amount of excavation of the embankment can be further reduced. This can further improve the workability of the cable installation work. By including such a connecting step of connecting a plurality of adjacent cable troughs to each other, it is not necessary to move the cable troughs once they have been installed, and the cable troughs can maintain a stable arrangement even in the event of an earthquake or the like.

[0021] In particular, according to the third aspect of the present invention, the cable trough installation process involves placing a trough cover on the top of the two side plates, or placing a precast concrete plate across the top of the two side plates. This allows the load on the cable trough from the load on the top of the cable trough to be stably supported via the trough cover or the precast concrete plate. This improves the safety of the cable installation work.

[0022] In particular, according to the fourth aspect of the present invention, the cable trough installation step installs the cable trough in a space with a cover plate installed above it. Therefore, regardless of the length of the cable trough, the end tiles can be laid all at once after the installation of the cable trough is completed. This further improves the workability of the cable installation work.

[0023] According to the fifth to tenth inventions, the installation structure for the platform door cable includes a cable trough with a substantially U-shaped opening space formed therein, which is installed in a space formed below the platform door, and a platform door cable installed so as to pass through the opening space of the cable trough. The cable trough is installed so that the inner surface of the bottom plate is oriented substantially upward and the side plate with the handhole drilled therein is exposed to the track side. This makes it possible to omit the installation of support members such as foundation blocks and cross beams that support the load in the vertical direction, or to widen the interval between the cross beams to be installed, thereby reducing the amount of excavation of the embankment required for the installation of the support members. This improves the workability of the cable installation work. In addition, the platform door cable can be installed in the cable trough after the tip tile and the platform door are installed, and wiring work can be performed independently of civil engineering work. This improves the workability of the cable installation work, and also makes it easy to perform work such as adding and repairing cables.

[0024] In particular, according to the sixth aspect of the present invention, the cable trough is connected to other cable troughs by fitting and fixing the fitting receiving portion formed on its inner surface with another fitting receiving portion formed on the inner surface of another adjacent cable trough using a connector. Therefore, after multiple cable troughs are installed, they can be connected without moving the cable troughs, and the amount of embankment excavation can be further reduced. This can further improve the workability of cable installation work. By having such a connected structure that connects multiple adjacent cable troughs to each other, it is not necessary to move the cable troughs once they have been installed as described above, and the cable troughs can maintain a stable arrangement even in the event of an earthquake or the like. This provides a cable trough connection structure in which multiple cable troughs are connected.

[0025] In particular, according to the seventh invention, the connector is flat and has two opposing concave fitting portions, and the cable trough is connected to another cable trough by clamping and fixing the fitting receiving portion and the other fitting receiving portion with the two fitting portions. Therefore, it is possible to secure a space for the platform door cable to pass through while firmly connecting multiple cable troughs. This makes it possible to improve the durability of the installation structure for the platform door cable. Here, according to the seventh invention, it is possible to obtain the same effect as the sixth invention.

[0026] In particular, according to the eighth invention, the connector is substantially U-shaped, and has two opposing vertical plate portions each having a concave fitting portion, and the cable trough is connected to another cable trough by clamping and fixing the fitting receiving portion and the other fitting receiving portion with the two fitting portions. Therefore, it is possible to secure a space through which the platform door cable passes while firmly connecting multiple cable troughs. This makes it possible to improve the durability and workability of the platform door cable installation structure. Here, according to the eighth invention, the same effect as the sixth invention can be obtained.

[0027] In particular, according to the ninth invention, the connector is flat, and the cable trough is connected to another cable trough by clamping the connector between the fitting receiving portion and another fitting receiving portion and fitting and fixing the connector. Therefore, it is possible to connect a plurality of cable troughs and to sort the platform door cables in the cable trough. This can further improve the workability of cable installation work. Here, according to the ninth invention, it is possible to obtain the same effect as the sixth invention, and at the same time, if a large number of fitting receiving portions are formed, the fitting receiving portions that are not used to fit and fix the connector have a separator function and can be used to sort the cables.

[0028] In particular, according to the tenth aspect of the present invention, the cable trough is provided with a hand hole cut out from the upper end of the side plate. This allows the worker's hand movement range within the cable trough to be expanded, thereby further improving the workability of the cable trough installation work.

[0029] According to the sixth to tenth inventions, the connector is connected to the fitting receiving portion, and the connection work is repeated to connect multiple troughs, so that a large number of troughs can be connected with a predetermined interval between adjacent troughs. This eliminates the need to rearrange the cable troughs at a predetermined interval after temporary laying when laying multiple cable troughs on an embankment, and allows the cable troughs to be arranged and connected at the same time. In addition, since each connector can be designed to a size that can be stored in the storage space of the trough body, the cable troughs can be connected manually from a space where only the handholes for the platform door installation work are open. Since multiple troughs are connected at a predetermined interval as a whole, the arrangement of the troughs is unlikely to be disturbed in the event of an earthquake or the like. When performing cable laying work after laying the cable troughs, there is an advantage that the work is easy when performing cable laying work across multiple troughs because the handhole intervals are constant. [Brief description of the drawings]

[0030] [Figure 1] 1(a) and 1(b) are schematic diagrams showing an example of a conventional installation structure for a cable for platform doors, where FIG. 1(a) is a side view and FIG. 1(b) is a plan view. [Diagram 2] Figures 2(a) to 2(c) are schematic diagrams showing modified examples of the conventional installation structure for platform door cables, where Figure 2(a) is a side view, Figure 2(b) is a cross-sectional view taken along line AA of Figure 2(a), and Figure 2(c) is a cross-sectional view taken along line BB of Figure 2(a). [Diagram 3] Figures 3(a) and 3(b) are schematic diagrams showing an example of an installation structure for a platform door cable in this embodiment, where Figure 3(a) is a side view and Figure 3(b) is a CC cross-sectional view of Figure 3(a). [Figure 4]Figures 4(a) to 4(c) are schematic diagrams showing an example of a cable trough that constitutes the installation structure for a platform door cable in this embodiment, with Figures 4(a) to 4(b) being side views and Figure 4(c) being a plan view. [Diagram 5] Figures 5(a) to 5(c) are schematic diagrams showing an example of a trough cover to be attached to a cable trough that constitutes the installation structure for a platform door cable in this embodiment, with Figures 5(a) to 5(b) being side views and Figure 5(c) being a plan view. [Figure 6] 6(a) and 6(b) are schematic diagrams showing an example of a construction method for installing a platform door cable in this embodiment, where FIG. 6(a) is a side view and FIG. 6(b) is a DD cross-sectional view of FIG. 6(a). [Figure 7] 7(a) and 7(b) are schematic diagrams showing an example of a construction method for installing a platform door cable in this embodiment, where FIG. 7(a) is a side view and FIG. 7(b) is an E-E cross-sectional view of FIG. 7(a). [Figure 8] 8(a) to 8(d) are schematic side views showing modified examples of the cable trough that constitutes the installation structure for the platform door cable in this embodiment. [Figure 9] Figures 9(a) to 9(d) are schematic diagrams showing a first embodiment of a configuration in which multiple cable troughs that constitute the installation structure for platform door cables in this embodiment are connected with a connector, where Figures 9(a) to 9(b) show a connector having a flat, concave fitting portion, Figure 9(c) shows a connecting structure using a flat connector, and Figure 9(d) is a cross-sectional view corresponding to the FF cross section of Figure 9(c) and shows a connecting method using a flat connector. [Figure 10] Figures 10(a) to 10(d) are schematic diagrams showing a second embodiment of a configuration in which multiple cable troughs that constitute the installation structure for platform door cables in this embodiment are connected with a connector, where Figures 10(a) to 10(b) show a connector that is approximately U-shaped and has a concave fitting portion, Figure 10(c) shows a connection structure using an approximately U-shaped connector, and Figure 10(d) is a cross-sectional view corresponding to the GG cross section of Figure 10(c) and shows a connection method using an approximately U-shaped connector. [Figure 11]Figures 11(a) and 11(b) are schematic diagrams showing a third embodiment of a configuration in which multiple cable troughs that constitute the installation structure for platform door cables in this embodiment are connected with a connector, where Figure 11(a) is a side view showing a connecting structure in which the flat connector is clamped in a fitting receiving portion protruding from the inner surface of each cable trough, and Figure 11(b) is a plan view of Figure 11(a). [Figure 12] Figures 12(a) to 12(b) are schematic diagrams showing a modified example of the installation method for the installation structure for a platform door cable in this embodiment, where Figure 12(a) is a side view and Figure 12(b) is an HH cross-sectional view of Figure 12(a). DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0031] Hereinafter, an example of a method for installing a platform door cable C1 and an installation structure 200 for a platform door cable as an embodiment of the present invention will be described in detail with reference to the drawings. In each figure, a first direction X is defined, one direction perpendicular to the first direction X is defined as a second direction Y, and a direction perpendicular to each of the first direction X and the second direction Y is defined as a third direction Z. The configurations in each figure are depicted diagrammatically for the purpose of explanation, and for example, the size of each component and the comparison of sizes between components may differ from those in the figures.

[0032] (Installation structure for platform door cables 200) An example of a platform door cable installation structure 200 in this embodiment will be described with reference to Figs. 3 to 5.

[0033] The platform door cable installation structure 200 constitutes a part of the platform door installation structure 100 arranged along the outer edge E of the embankment platform on the track side. The outer edge E is positioned along the first direction X.

[0034] As shown in Figures 3(a) to 3(b), the platform door installation structure 100 comprises each platform door 11, 12, a bulkhead 13 connecting each platform door 11, 12, a tip tile 14 supporting these from below, each platform door foundation portion 15, 16, a platform foundation portion F11, a platform surface portion F12, and an installation structure 200 for the platform door cables.

[0035] Here, the platform door cable installation structure 200 refers to a structure installed in an excavation space Q formed below the platform doors 11, 12 so as to be exposed to the track side at a distance from each other along the outer edge E, and includes one or more cable troughs 2 and a platform door cable C8. The excavation space Q is a space formed by excavating the embankment that constitutes the platform foundation part F11 with a known construction machine or the like. Note that the space in which the platform door cable installation structure 200 is installed is not limited to the excavation space Q, and may be, for example, a space possessed by the platform foundation part F11 having a substantially L-shaped or T-shaped cross section.

[0036] At this time, the platform door installation structure 100 can electrically connect each platform door 81, 82 by installing the platform door cable C8 so that it passes through the cable routes R15, R16 in the platform door foundation portions 15, 16 and the cable route R2 in the cable trough 2.

[0037] In addition, since platform door 12 is similar to platform door 11, and platform door base part 16 is similar to platform door base part 15, in the following explanation, the corresponding configuration will be written in parentheses as necessary, and similar explanations will be omitted.

[0038] <Platform Door 11(12)> The platform doors 11 (12) are well-known movable platform fences that prevent passengers from falling onto the tracks or coming into contact with trains. The platform doors 11 (12) are installed along the outer edge E of the embankment platform on the track side. The platform doors 11 (12) are electrically connected to an external power source (not shown) via a platform door cable C1, and are electrically operated so that their operation can be controlled by the supply of power. The platform doors 11 and 12 are arranged, for example, at a predetermined distance apart according to the distance between the doors of the cars stopped at the platform.

[0039] The platform door 11(12) has, for example, a door casing 111(121), a door control unit 112(122), and a door 113(123). The door control unit 112(122) is mounted on the door casing 111(121). The door casing 111(121) houses the door 113(123) inside when the platform door 11(12) is opened, and releases the door 113(123) to the outside when the platform door 11(12) is closed. The door control unit 112(122) is supplied with power via the platform door cable C1 and controls the opening and closing operation of the platform door 11(12).

[0040] <Bulkhead 13> The bulkhead 13 is a known platform fence that prevents passengers from falling onto the tracks or coming into contact with a train. The bulkhead 13 connects, for example, the platform door 11 and the platform door 12.

[0041] <Tip tile 14> The leading edge tile 14 is a known platform leading edge tile that serves as an entrance / exit for passengers to board and disembark from trains. The leading edge tile 14 is installed, for example, above the platform base part F11 along the outer edge E on the track side of the embankment platform, and supports the platform doors 11 (12).

[0042] <Platform door foundation 15(16)> The platform door foundation part 15(16) is a foundation for installing the platform door 11(12), and has a mechanism for connecting the platform door cable C1 to the platform door 11(12). The platform door foundation part 15(16) is positioned in advance below the platform door 11(12), for example, so that they are spaced apart from each other along the outer edge E and exposed to the track side. The platform door foundation part 15(16) is, for example, a substantially U-shaped concrete block.

[0043] <Platform Foundation Section F11> The platform foundation F11 is the foundation of the platform. The platform foundation F11 is composed of, for example, embankment, PC (Prestressed Concrete) slab, concrete blocks, etc. The above-mentioned excavation space Q is a space obtained by excavating the embankment that constitutes the platform foundation F11. The periphery of the platform foundation F11, particularly the periphery of the excavation space Q, may be reinforced with, for example, PC slab, concrete blocks, etc.

[0044] <Platform surface part F12> The platform surface portion F12 is a surface layer above the base portion of the platform other than the tip tile 14. The platform surface portion F12 is made of, for example, a PC deck, concrete, or the like.

[0045] <Cable Trough 2> The cable trough 2 is a trough for storing and protecting the platform door cable C1. As shown in Fig. 4(a) to Fig. 4(c), for example, the cable trough 2 is made of a trough body 21. A substantially U-shaped opening space is formed in the cable trough 2, and a handhole 22 is drilled in one of two opposing side plates.

[0046] 5(a) to 5(c), the cable trough 2 may be covered with a trough lid 23 so as to close the approximately U-shaped opening space of the trough body 21 in order to protect objects installed in the trough body 21. Instead of the trough lid 23, the cable trough 2 may be provided with a plate material such as a PC deck so as to close the approximately U-shaped opening space.

[0047] <Trough body 21> The trough body 21 has a substantially U-shaped open space. From the viewpoint of workability in installation work, the material of the trough body 21 is preferably a lightweight resin rather than steel or concrete. The trough body 21 is designed to withstand the weight of the platform, the weight of the load such as the trough cover 23 described below, PC plate, and lining plate, as well as a crowd load of 5.0 KN / m 2 (508kg / m 2 ) It is made of any material that has a strength that satisfies the above requirements.

[0048] As shown in FIG. 4(a), the trough body 21 has a substantially U-shaped cross section perpendicular to the first direction X. The trough body 21 has, for example, a first side plate 211 exposed to the outside, a second side plate 212 retaining the embankment, and a bottom plate 213 connecting the side plates 211 and 212, and the first side plate 211 and the second side plate 212 face each other at a distance. When the inner surface of the bottom plate 213 is oriented substantially upward, the trough body 21 is arranged such that the first side plate 211 and the second side plate 212 rise from the bottom plate 213, for example, as side plates facing substantially upward. At this time, the trough body 21 has a substantially U-shaped cross section with the inside opening substantially upward.

[0049] The dimensions of the trough body 21 are, for example, such that the first side plate 211 and the second side plate 212 are approximately rectangular parallelepipeds with a thickness of approximately 50 mm x height of approximately 290 mm x length of approximately 1000 mm, and the bottom plate 213 is approximately rectangular parallelepipeds with a thickness of approximately 40 mm x width of approximately 300 mm x length of approximately 1000 mm.

[0050] In the trough body 21, the hand holes 22 are drilled in the first side plate 211. At this time, it is conceivable that the first side plate 211 is formed to be thinner than the second side plate 212 so that the hand holes 22 can be easily drilled; however, in consideration of the load-bearing capacity, it is preferable that the first side plate 211 and the second side plate 212 have the same thickness.

[0051] Here, a trough that satisfies the T25 load-bearing test (total weight approximately 25T, maximum load per wheel 50kN) can be used as the trough body 21. In the T25 load-bearing test, the test is performed with a trough lid placed over the trough body, so when an actual trough body that satisfies T25 is applied to the trough body 21 used in the platform door cable installation method and installation structure of the present invention, the load from the platform above the trough body 21 can be made uniform by placing the trough lid 23 over it, thereby improving the stability of the support.

[0052] <Hand Hole 22> One or more hand holes 22 are drilled in the first side plate 211. The hand holes 22 are used to install the platform door cable C1 in the cable trough 2.

[0053] The dimensions of the hand hole 22 may be such that an operator can insert his / her hand into the hand hole 22 of the trough body 21, and may be, for example, a circle with a diameter of about 100 to 150 mm. When the hand hole 22 is a rectangle having a short side and a long side, the dimensions are, for example, in the range of a short side of 100 to 150 mm and a long side of about 1.0 to 1.5 times the short side. The dimensions of the hand hole 22 may have a significantly different ratio of the short side to the long side, and may be, for example, a long side of 200 to 300 mm.

[0054] In this case, for example, in FIG. 4(b), a worker can insert his left hand into the hand hole 22a to hold the platform door cable C1 in the trough body 21, and easily pass the platform door cable C1 to his right hand inserted into the hand hole 22b adjacent to the hand hole 22a. Also, for example, in FIG. 4(b), the intervals between the hand holes 22a, 22b, 22c, and 22d may be equal, and the intervals between the hand holes 22a and 22b and between the hand holes 22c and 22d may be adjusted to be wider than the intervals between the hand holes 22b and 22c in order to partially reinforce the strength. Here, the size, number, and arrangement interval of the hand holes may be appropriately set in consideration of the workability in the cable installation process and the side plate thickness of the trough body 21 and the decrease in the load-bearing capacity of the side plates 211 and 212 due to the formation of the hand holes 22. Also, in order to suppress the decrease in load-bearing capacity due to the formation of the hand holes 22, the trough body 21 of the present invention may be a high-strength trough with excellent load-bearing capacity. Furthermore, if a high-strength trough that satisfies the above-mentioned T25 is used as the high-strength trough, it is possible to provide a margin in load-bearing capacity. It is preferable that the hand holes 22 are provided in a plurality of consecutive positions at intervals of at least half the shoulder width of the worker.

[0055] Furthermore, in the present invention, in order to provide a margin in load-bearing capacity, when checking the load-bearing capacity of a trough when using a high-strength trough of T25, for example, according to the strength classification of T-25 defined by the Road Bridge Specifications (issued by the Japan Road Association) and the Vehicle Restriction Ordinance, satisfying T25 requires a trough that has a tire contact area of ​​width W = 500 mm × length L = 200 mm for a vehicle with a total weight of approximately 25 tons and can withstand a maximum load of 50 kN per wheel. Note that the shape of the trough is not important as long as it satisfies T25.

[0056] In this invention, in addition to the weight of the trough cover and platform, the weight of the PC plate or the covering plate and the crowd load of 5.0KN / m 2 (1m 2The ratio of the effective support area of ​​the trough to the total load must be satisfied, but the total of these loads must exceed the total load that can be supported on both sides of the trough after the hand holes and notches are formed. Since there is usually embankment on the back side of the platform from the trough, the effective load that the trough must bear is, for example, 1m if the dimensions of the trough are the typical dimensions of a trough, 100cm long x 20cm wide. 2 The load supported by the trough is calculated by multiplying the load by 0.2 times the ratio of the effective support area of ​​the trough. In other words, the load supported by the trough is calculated to be 1 m2 depending on the ratio of the effective support area of ​​the trough. 2 It is thought that the load will be a fraction of the actual load.

[0057] <Trough lid 23> 5(a), the trough lid 23 is fitted to the trough body 21. The shape of the trough lid 23 is, for example, a flat plate. The material of the trough lid 23 may be the same as that of the trough body 21.

[0058] The trough lid 23 is installed, for example, by being fitted to at least one of the first side plate 211 and the second side plate 212, or may be fixed to each of the side plates 211, 212 with a bolt B23 as shown in FIG. 5(c).

[0059] Trough lid 23 may have grooves formed, for example, on the surface opposite to the opposing surfaces at the tips of each of side plates 211, 212 of trough body 21. In this case, when tip tile 14 is installed on top of trough lid 23 as shown in Fig. 3(b), mortar or the like (not shown) poured between the tiles can make the surface of trough lid 23 less slippery, improving the workability of the installation work.

[0060] (Installation method for platform door cable installation structure 200) Next, a method for installing the platform door cable installation structure 200 (a method for installing the platform door cable C1) will be described with reference to Fig. 3 and Fig. 6 to Fig. 7. The method for installing the platform door cable C1 includes a cable trough installation step and a cable installation step.

[0061] <Advance preparation> Prior to carrying out the cable trough installation step, workers excavate the embankment that constitutes the platform foundation portion F11 along the outer edge E on the track side, as shown in Figures 6(a) to 6(b), for example, to form an excavated space Q in advance. After that, in the formed excavated space Q, multiple platform door foundation portions 15, 16 are arranged so that they are exposed to the track side and spaced apart from each other along the outer edge E. Note that workers may arrange multiple platform door foundation portions 15, 16 after carrying out the cable trough installation step.

[0062] <Cable trough installation process> In the cable trough installation process, as shown in Figures 7(a) to 7(b), for example, workers install the cable trough 2 in the excavated space Q between the multiple platform door foundations 15, 16 with the inner surface of the bottom plate 213 oriented substantially upward and the first side plate 211 with the handholes 22 drilled therein exposed to the track side. At this time, the second side plate 212 opposing the first side plate 211 is installed so as to face the platform side and functions as an earth retaining wall for the platform foundation F11.

[0063] Here, the outer surfaces of the side plates 211, 212 and the bottom plate 213 of the trough body 21 of the cable trough 2 are not provided with any unevenness for fitting with other adjacent cable troughs or each platform door base part 15, 16. In this case, as shown by the dashed line and arrow in FIG. 7(b), the cable trough 2 can be inserted into the excavation space Q from the track side in a substantially horizontal direction (a planar direction perpendicular to the second direction Y in FIG. 7(b)) and installed. In other words, compared with a cable trough that is fitted in the vertical direction (the second direction Y in FIG. 7(b)), there is no need to insert the cable trough 2 from above to below into the excavation space Q, so that workers can easily install the cable trough 2 from the track side without making scaffolding. In this case, there is no risk of falling from the platform base part F11 or the scaffolding, and the safety and workability of the installation work can be improved.

[0064] After a predetermined number of cable troughs 2 are installed by repeating the above-mentioned work, for example, as shown in Fig. 3(a) to Fig. 3(b), a trough cover 23 and a tip tile 14 are installed above the cable trough 2, each platform door 11, 12 is installed above each platform door base part 15, 16 and the tip tile 14, and a bulkhead 13 is installed above the cable trough 2 and the tip tile 14. That is, the cable trough installation process and the cable installation process are completely separated. In this case, wiring work can be performed independently from civil engineering work. This can improve the workability of cable installation work. In addition, work such as adding and repairing the platform door cable C1 can be easily performed. Note that the installation of the trough cover 23, the tip tile 14, each platform door 11, 12, and the bulkhead 13 may be performed after the platform door cable C1 is installed in the cable installation process described later.

[0065] <Cable installation process> In the cable installation process, as shown in, for example, FIG. 3(a) to FIG. 3(b), a worker installs the platform door cable C1 using the hand hole 22 so as to pass through the approximately U-shaped opening space of the cable trough 2 installed in the cable trough installation process and connect the multiple platform door foundation parts 15, 16 along the outer edge E. Specifically, the worker inserts his / her hand into one hand hole 22 to hold the platform door cable C1 stored in the opening space of the cable trough 2, and repeats the method of handing it over to the hand inserted into the other adjacent hand hole 22, thereby installing the platform door cable C1 so as to pass through the opening space of the cable trough 2. In this case, it is possible to omit the installation of foundation blocks, cross beams, etc., or to widen the interval between the cross beams to be installed, thereby reducing the amount of excavation of the embankment constituting the platform foundation part F11 required to install the support member. This can improve the workability of the cable installation work. Furthermore, the upper ends of the two side plates 211, 212 can support a load from the top of the cable trough 2 (for example, a load from the lid 23 described below), making it possible to omit the installation of support members that support vertical loads, such as foundation blocks and cross beams, and to widen the interval between the cross beams to be installed. This improves the workability of the cable installation work. Furthermore, after the installation method for the platform door cable C1 is completed, a worker can visually check the appearance of the platform door cable C1 stored in the cable trough 2 from the track side through the hand hole 22 without performing any work. This also improves the workability of maintenance work after the cable installation work.

[0066] (First modified example of platform door cable installation structure 200) Next, a first modified example of the platform door cable installation structure 200 will be described with reference to FIG.

[0067] <Hand Hole 22> The shape of the handhole 22 is not limited to a circle, but may be, for example, a substantially square or a rectangle with a different ratio of the short side to the long side, as shown in FIG. 8(a). In the case of a rectangle, the ratio of the short side to the long side is preferably in the range of 1:1 to 1:1.5. In this case, it is easier to visually confirm the appearance of the platform door cable C1 stored in the cable trough 2 compared to a circle. In the case of a circle or a rectangle with a ratio of the short side to the long side of 1:1.5 or less, the wrist positioned in the handhole can be used as a fulcrum to swing the wrist and move the cable, so that the cable can be delivered to pass through the space in the cable trough 2.

[0068] As shown in FIG. 8(b), for example, the handhole 22 is drilled in the longitudinal direction of the first side panel 211 (first direction X in FIG. 8(b)) as a long shape with a significantly different short side to long side ratio. That is, a worker can insert his hand into handhole 22i, for example, and pull the platform door cable C1 stored in the opening space of the cable trough 2 in the longitudinal direction, and then hand it over to the hand inserted into the adjacent handhole 22j. In this case, the number of times the platform door cable C1 is handed over to the hand inserted into the other adjacent handhole 22 can be reduced. This can further improve the workability of the cable installation work.

[0069] The hand hole 22 may be provided as a notch 3 cut out to a predetermined depth from the upper end of the first side plate 211 of the trough body 21, as shown in FIG. 8(c), for example. In this case, the notch 3 cannot support the load from the upper part, compared with the case where a hand hole is drilled in the first side plate 211, and therefore the support cross-sectional area of ​​the load support part is further reduced, so that the load-bearing capacity of the cable trough to be used may be sufficient. The dimensions of the notch 3 are, for example, a notch height (depth) of about 120 to 125 mm and a length of about 400 to 500 mm. Unlike the drilled hand holes 22a to 22j, the notch 3 has no side wall above the notch, so that the degree of freedom of the range in which the arm can move is large, which makes it easy to work with, and it is also easy to manufacture, since it is sufficient to provide one notch of the above-mentioned dimensions for one trough.

[0070] The cable trough 2 needs to bear the load bearing force along the second direction Y in the platform door cable installation structure 200. When the notch 3 described above is formed to have a wider dimension than the hole, the cross-sectional area of ​​the load supporting portion (part where no notch is formed) that is continuous from top to bottom of the side plate is reduced compared to the handholes 22a to 22j, and the durability of the cable trough 2 may be reduced, so it is desirable that the load bearing capacity of the cable trough 2 is sufficient. Methods for improving the load bearing capacity of the cable trough 2 include, for example, increasing the plate thickness of the side plates 211, 212 of the trough body 21, using the high-strength trough described above, and providing a rib 214 inside the trough body 21.

[0071] <Rib 214> The rib 214 is provided on the inner surface of the trough body 21, for example, as shown in Fig. 8(d). The rib 214 is provided in a slightly inclined plane shape so as to gradually thicken downward on each of the side plates 211, 212 of the trough body 21, except for the vicinity of a fitting receiving portion 215 (described later) provided on the inner surface of the trough body 21. The rib 214 is provided, for example, over substantially the entire inner surface of each of the side plates 211, 212, and a reinforcing effect is obtained regardless of the position of the handhole 22. In this case, the number of times the platform door cable C1 stored in the cable trough 2 is passed can be reduced while suppressing a decrease in durability of the cable trough 2.

[0072] (Installation method of the first modified example of the platform door cable installation structure 200) <Cable trough installation process> In the cable trough installation process, workers install the cable trough 2, in which a long handhole 22 is drilled in the longitudinal direction of the first side panel 211, so that the longitudinal direction of the cable trough 2 is aligned with the outer edge E. In this case, the platform door cable C1 can be installed more easily within the cable trough 2. This can further improve the workability of the cable installation work.

[0073] (Second modified example of platform door cable installation structure 200) Next, a second modified example of the platform door cable installation structure 200 will be described with reference to Fig. 9 to Fig. 11. The platform door cable installation structure 200 further includes a coupling device 24.

[0074] <Connection structure of adjacent trough bodies> In the platform door cable installation structure 200 of the present invention, as shown in Figures 9(a) to 9(d), for example, multiple adjacent cable troughs 2, 2' are closely arranged and connected, which improves the workability of cable insertion work and has the characteristic that the connected state can be maintained even in the event of an earthquake, etc.

[0075] As a method of connecting multiple cable troughs, for example, a fitting receiving portion is formed at the end of one cable trough and a male joint portion is formed at the end of the other cable trough, and the other cable trough having a male joint portion is dropped from above into the fitting receiving portion of one cable trough to connect the cable troughs, and this connecting operation is further repeated. This eliminates the need for a separate connector.

[0076] On the other hand, the present invention provides an installation method and structure that can connect a plurality of cable troughs 2, 2' together by forming fitting receivers 215 at both the front and rear ends of the cable trough (see FIG. 9(c)) and connecting the fitting receivers 215, 215' of adjacent cable troughs 2, 2' together with connectors 24, in order to avoid connecting by dropping them in from above due to spatial reasons in the installation work and thereby reduce the amount of excavation of the embankment. This makes it possible to realize a connected arrangement of the cable troughs 2 even if there is no space above the multiple cable troughs 2, 2'.

[0077] In addition, as a structure for closely arranging and connecting a plurality of adjacent cable troughs 2, 2', various combinations of the structure of the connector 24 and the structure of the fitting receiving portion 215, 215' of the cable trough 2, 2' are conceivable, but in the present invention, three structures of the following first to third embodiments are proposed. In these structures, it is not necessary to rearrange the trough main body 21, 21' at a predetermined interval after the installation of a plurality of cable troughs 2, 2', and the arrangement work and the connection work of the cable troughs 2, 2' can be performed simultaneously. Furthermore, since any of the connectors 24 can be designed to a size that can be stored in the storage space of the trough main body 21, 21', the cable troughs 2, 2' can be connected in the space inside the trough main body 21 by manual work from a space where only the hand hole 22 associated with the platform door installation work is opened, and the amount of excavation of the embankment constituting the platform foundation part F11 can be further reduced. This makes it possible to further improve the workability of the cable installation work. In addition, when performing cable laying work after laying the cable troughs, the handhole intervals are constant, making it easy to perform the work when performing cable laying work across multiple troughs. Also, by connecting multiple adjacent cable troughs 2, 2' to each other, there is no need to move the cable troughs 2, 2' once they have been installed, and since they are connected at a predetermined interval as a whole, the arrangement of the cable troughs 2, 2' is less likely to be disturbed even in the event of an earthquake, etc., and a stable arrangement can be maintained.

[0078] <<First embodiment of a connecting structure using a connecting tool 24>> A first embodiment of a connection structure using the connector 24 will be described below. The connector 24 is flat, as shown in Figs. 9(a) and 9(b), and has two opposing concave fitting portions 241, 242. Specifically, the connector 24 has two concave fitting portions 241, 242 at the center of opposing short sides. The trough body 21 has two fitting receiving portions 215a, 215b protruding from the inner surfaces of the two side plates 211, 212 for fitting the connector 24, as shown in Fig. 9(c), for example. In this case, the connector 24 may connect the cable troughs 2, 2' arranged adjacent to each other.

[0079] The fitting receiving portions 215 are provided on the inner surfaces of the side plates 211, 212 of the opposing trough body 21. In the following description, the fitting receiving portion 215 provided on the second side plate 212 side is assumed to be the fitting receiving portion 215a, and the fitting receiving portion 215 provided on the first side plate 211 side is assumed to be the fitting receiving portion 215b. In the example of FIG. 9(c), the trough body 21 of the cable trough 2 has the fitting receiving portions 215a, 215b protruding from the front end (or rear end). The trough body 21' of the other cable trough 2' has the fitting receiving portions 215'a, 215'b protruding from the rear end (or front end). The fitting receiving portions 215a, 215b are formed as protrusions extending linearly from the bottom plate 213 toward the opening. Similarly, each of the fitting receiving portions 215'a, 215'b is formed as a protrusion extending linearly from the bottom plate 213' toward the opening.

[0080] Here, as shown in FIG. 9(c), for example, the fitting receiving portion 215a and the fitting receiving portion 215'a are clamped and fitted by the fitting portion 241 of the connector 24, while the fitting receiving portion 215b and the fitting receiving portion 215'b are clamped and fitted by the fitting portion 242 of the connector 24, so that the cable troughs 2, 2' can be connected to each other. In this case, after the installation of the multiple cable troughs 2, 2', the trough bodies 21, 21' can be connected without moving them, and the amount of excavation of the embankment constituting the platform base portion F11 can be further reduced. This can further improve the workability of the cable installation work.

[0081] The connector 24 may have through holes penetrating both main surfaces constituting the flat plate. In this case, the operator can easily grasp the connector 24, improving the workability when performing the above-mentioned fitting. The fitting receiving portion 215 is formed integrally with the trough body 21, and therefore, for example, the same material as that of the trough body 21 is used as the material of the fitting receiving portion 215.

[0082] In addition, the bottom plate 213, 213' of each trough body 21, 21' may have a recess formed in the vicinity of the fitting receiving portion 215, 215', the height of which is lowered by the thickness of the connector 24. In this case, after the connector 24 is fitted into the fitting receiving portion 215, 215', the height of the connector 24 and the height of the bottom plate 213, 213' can be made flush with each other. Furthermore, by forming such a recess in each trough body 21, 21', the connector 24 can be stored in the recess of the trough body 21 or 21' in advance, and can be taken out and used immediately when connecting each cable trough 2, 2'. This can improve workability.

[0083] Also, as shown in FIG. 9(d), it is preferable that the height of the fitting receiving portion 215, 215' extended from the bottom plate 213, 213' or from the vicinity thereof is 1 / 2 or less of the height of each side plate 211, 212, 211', 212'. In this case, the connector 24 can be inserted and fixed from above the fitting receiving portion 215, 215' inside the opening space of the trough body 21, 21', and it is not necessary to move each trough body 21, 21' after the installation of the multiple cable troughs 2, 2'. This can further reduce the amount of excavation of the embankment constituting the platform base portion F11, and further improve the workability of the cable installation work. In addition, the connector 24 can be easily attached even when there is a load above the trough body 21, 21', and the workability can be improved. In addition, it is possible to secure a space through which the platform door cable C1 passes while firmly connecting the multiple cable troughs 2, 2'. This can improve the durability of the installation structure of the platform door cable.

[0084] <Second embodiment of the connecting structure using the connecting tool 24> Below, we will explain a second embodiment of a connecting structure using a connecting device 24. In the second embodiment, the shape and arrangement of the fitting receiving portions 215, 215' are similar to those in the first embodiment, but the shape of the connecting device 24 is different from that in the first embodiment.

[0085] As shown in Figs. 10(a) and 10(b), the connector 24 has an approximately U-shaped outer shape and has two opposing concave fitting portions 241 and 242. Specifically, the connector 24 is made up of two opposing vertical plate portions 243 and 244 and a horizontal plate portion 245 connecting them, and has a concave fitting portion 241 provided on the outer surface of the vertical plate portion 243 and a concave fitting portion 242 provided on the outer surface of the vertical plate portion 244. The two opposing vertical plate portions 243 and 244 are integrally molded, for example, via the horizontal plate portion 245. The two opposing vertical plate portions 243 and 244 may be integrally molded with the horizontal plate portion 245 by a method such as injection molding, extrusion molding, or press molding, or may be integral with the horizontal plate portion 245 using an adhesive or the like. Since the surface area of ​​the substantially U-shaped connector 24 is not so large, it can be attached and stored in advance along the inner surface of the trough body 21, and when connecting the cable troughs 2, 2', the connector 24 can be taken out and used immediately. This improves workability. Also, it is possible to secure a space through which the platform door cable C1 passes while firmly connecting the multiple cable troughs 2, 2'. This improves the durability and workability of the installation structure for the platform door cable.

[0086] 10(c) to 10(d), the connector 24 can connect the cable troughs 2, 2' to each other by, for example, clamping and fitting the fitting receiving portion 215a and the fitting receiving portion 215'a with the fitting portion 241 provided on the vertical plate portion 243 of the connector 24 and clamping and fitting the fitting receiving portion 215b and the fitting receiving portion 215'b with the fitting portion 242 provided on the vertical plate portion 244 of the connector 24 in the same manner as in the first embodiment (see FIG. 9(c)). Note that, although an example in which the opening of the approximately U-shaped connector 24 is oriented upward like the opening of the cable trough 2 and fitted thereto has been described, the opening of the approximately U-shaped connector 24 may be oriented downward, i.e., toward the bottom plate 213 of the cable trough 2 and fitted thereto.

[0087] Also, as shown in FIG. 10(d), it is preferable that the height of the fitting receiving portion 215, 215' extended from the bottom plate 213, 213' is 1 / 2 or less of the height of each side plate 211, 212, 211', 212'. In this case, as in the above-mentioned first embodiment (see FIG. 9(d)), the connector 24 can be inserted and fixed from above the fitting receiving portion 215, 215' inside the opening space of the trough body 21, 21', and it is not necessary to move each trough body 21, 21' after installing a plurality of cable troughs 2, 2'. This can further reduce the amount of excavation of the embankment constituting the platform base portion F11, and can further improve the workability of the cable installation work. Also, the connector 24 can be easily attached even when there is a load above the trough body 21, 21', and can improve the workability.

[0088] <Third embodiment of the connecting structure using the connecting tool 24> A third embodiment of a connecting structure using the connector 24 will be described below, in which a fitting receiver 215 and a connector 24 different from those of the first and second embodiments are used. In particular, the third embodiment is different in that the fitting receiver 215 is provided on the bottom plates 213, 213' of the trough bodies 21, 21', rather than on the side plates 211, 212, 211', 212' of the trough bodies 21, 21'.

[0089] The connector 24 is, for example, in the form of a flat plate, as shown in Figs. 11(a) and 11(b).

[0090] The fitting receiving portion 215 is provided on the inner surface of the trough body 21. The fitting receiving portion 215 is shaped as a pair of opposing claws that are arranged to be approximately parallel to the longitudinal direction of the cable trough 2 (first direction X in FIG. 11(a)) and can clamp the connecting tool 24, as shown in FIG. 11(a), for example, and the shape of the claws is, for example, approximately triangular prism. The fitting receiving portion 215 is, for example, a pair of claws that face each other at a distance in a direction parallel to the direction in which the two side plates 211 and 212 face each other (third direction Z in FIG. 11(b)). The fitting receiving portion 215 is usually molded integrally with the trough body 21, and therefore, for example, the same material as the trough body 21 is used. The fitting receiving portion 215 may be provided with, for example, a plurality of fitting receiving portions 215a and 215b.

[0091] The fitting receiving portion 215 is provided, for example, on the inner surface of the bottom plate 213. The fitting receiving portion 215 may include a plurality of fitting receiving portions 215a, 215b provided along the short side direction of the bottom plate 213 (the third direction Z in FIG. 11(a)) in order to install a plurality of connectors 24, for example. In this case, the fitting receiving portion 215 that is not used for fitting and fixing the connectors 24 may function as a separator for the purpose of sorting cables, such as by clamping and locking the platform door cable C1 with a pair of claws.

[0092] As shown in FIG. 11(b), for example, the connector 24 is fitted into a fitting receiving portion 215a (215b) provided inside the trough body 21 constituting the cable trough 2 and another fitting receiving portion 215'a, (215'b) provided inside the trough body 21 constituting another cable trough 2'. That is, the cable trough 2 and another cable trough 2' are connected via the connector 24. In the case of the third embodiment, the fitting receiving portions 215a, 215b and the connector 24 are formed at the bottom of the trough bodies 21, 21', so that it may be slightly obstructive when inserting a cable into the cable troughs 2, 2'. However, by slightly shifting the cable insertion position in the width direction of the trough bodies 21, 21' or slightly lifting the cable, it will hardly be an obstacle when inserting the cable. In this case, as in the first and second embodiments, the cable troughs 2, 2' can be connected without moving the trough bodies 21, 21' after installation, and the amount of excavation of the embankment constituting the platform base F11 can be further reduced. This can further improve the workability of the cable installation work. In addition, the connector 24 can be easily attached even when there is a load above the trough bodies 21, 21', and the workability can be improved. In addition, if a large number of fitting receiving parts 215 are formed, the fitting receiving parts 215 that are not used for fitting and fixing the connector 24 have a separator function and can be used to sort the cables.

[0093] (Installation method of the second modified example of the platform door cable installation structure 200) The method for installing the platform door cable C1 further includes a cable trough connecting process.

[0094] <Cable trough installation process> In the cable trough installation process, workers install a number of cable troughs 2, 2' adjacent to each other.

[0095] <Cable trough connection process> In the cable trough installation process, a worker connects the multiple cable troughs 2, 2' installed in the cable trough installation process by inserting a connector 24 into each trough body 21, 21' and fitting and fixing each fitting receiving portion 215, 215' with the connector 24. After installing all the cable troughs to be installed between each of the platform door foundations 15, 16, a worker may install multiple connectors 24 together to connect adjacent cable troughs.

[0096] By using connectors 24 that can pass through hand holes 22, workers do not need to insert the connectors from above trough body 21, and can easily install connectors 24 without creating scaffolding from the track side. In this case, workers will not fall from platform base F11 or scaffolding, improving safety and workability of the installation work.

[0097] (Modification of the installation method of the platform door cable installation structure 200) Next, a modified example of the installation method of the platform door cable installation structure 200 will be described with reference to FIG.

[0098] <Cable trough installation process> In the cable trough installation process, workers install a covering plate 25 above the excavation space Q, for example, as shown in Figs. 12(a) and 12(b).

[0099] In the cable trough installation process, a worker installs the cable trough 2 in the excavation space Q with a covering plate 25 installed above, for example. In this case, regardless of the installation length of the cable trough 2, the tip tiles 14 can be laid all at once after the installation of the cable trough 2 is completed. This can further improve the workability of the cable installation work. Note that the worker may remove the covering plate 25 when installing the cable trough 2, or may insert the cable trough 2 into the excavation space Q from the track side in a substantially horizontal direction with the covering plate 25 installed.

[0100] <Covering plate 25> The covering plate 25 is installed above the excavation space Q, for example, as shown in Fig. 12(a). The covering plate 25 is installed above each of the platform door foundations 15, 16, for example.

[0101] The material of the lining plate 25 is, for example, steel, and a known lining plate used in civil engineering works may be used. The lining plate 25 is, for example, a lining plate that can withstand the load of the upper load, its own weight, and the crowd load of 5.0 KN / m 2 (508kg / m 2 ) It is made of any material that has a strength that satisfies the above requirements.

[0102] The covering plate 25 is fixed to each platform door foundation 15, 16 and the platform foundation F11 by bolts B25, as shown in Fig. 12(b), for example. The covering plate 25 may be fixed by bolts B25 to a trough cover 23 fitted to a cable trough 2 fixed to the platform foundation F11 by bolts B2, for example.

[0103] According to this embodiment, the method for installing the platform door cable C1 includes a cable trough installation step of installing the cable trough 2 having a substantially U-shaped opening space in the excavation space Q formed below the platform doors 11 and 12, with the inner surface of the bottom plate 213 oriented substantially upward and the first side plate 211 having the hand hole 22 drilled therein exposed to the track side, and a cable installation step of installing the platform door cable C1 using the hand hole 22 so as to pass through the opening space of the installed cable trough 2. Therefore, the cable trough 2 can be installed without installing foundation blocks, cross beams, etc., and the amount of excavation of the embankment can be reduced. This can improve the workability of the cable installation work. In addition, the wiring work can be performed independently of the civil engineering work, such as installing the platform door cable C1 in the cable trough 2 after installing the tip tile 14 and the platform doors 11 and 12. This can improve the workability of the cable installation work. In addition, the two side plates 211, 212 can support the load from above the cable trough 2, making it possible to omit the installation of support members such as foundation blocks and cross beams that support the load in the vertical direction and to widen the interval between the cross beams to be installed. This improves the workability of cable installation work.

[0104] Moreover, according to this embodiment, the method further includes a cable trough connecting step of connecting a plurality of cable troughs 2, 2' by fitting and fixing the fitting receiving portion 215 formed in one cable trough 2 to another fitting receiving portion 215' formed in another adjacent cable trough 2' using a connector 24. Therefore, after the installation of a plurality of cable troughs 2, 2', the cable troughs 2, 2' can be connected without moving them, and the amount of excavation of the embankment can be further reduced. This can further improve the workability of the cable installation work.

[0105] Furthermore, according to this embodiment, the cable trough installation step involves placing the trough lid 23 on the tops of the two side plates 211, 212, or placing a precast concrete plate across the tops of the two side plates 211, 212. This allows the load on the cable trough 2 from the load on the top of the cable trough 2 to be stably supported via the trough lid 23 or the precast concrete plate. This improves the safety of the cable installation work.

[0106] According to this embodiment, the cable trough installation step involves installing the cable trough 2 in the excavation space Q with the covering plate 25 installed above. Therefore, regardless of the installation length of the cable trough 2, the tip tiles 14 can be laid all at once after the installation of the cable trough 2 is completed. This can further improve the workability of the cable installation work.

[0107] According to the present embodiment, the platform door cable installation structure 200 includes a cable trough 2 that forms a substantially U-shaped opening space that is installed in the excavation space Q formed below the platform doors 11 and 12, and a platform door cable C1 that is installed so as to pass through the opening space of the cable trough 2. The cable trough 2 is installed so that the inner surface of the bottom plate 213 is oriented substantially upward and the side plate 211 in which the handhole 22 is drilled is exposed to the track side. This makes it possible to omit the installation of support members that support the load in the vertical direction, such as foundation blocks and cross beams, or to widen the interval between the cross beams to be installed, thereby reducing the amount of excavation of the embankment required for the installation of the support members. This makes it possible to improve the workability of the cable installation work. In addition, the platform door cable C1 can be installed in the cable trough 2 after the tip tile 14 and the platform doors 11 and 12 are installed, and wiring work can be performed independently of civil engineering work, such as installing the platform door cable C1 in the cable trough 2. This makes it possible to improve the workability of the cable installation work and to easily perform work such as adding and repairing cables.

[0108] Furthermore, according to this embodiment, the cable trough 2 is connected to another cable trough 2' by fitting and fixing the fitting receiving portion 215 formed on its inner surface to another fitting receiving portion 215' formed on the inner surface of another adjacent cable trough 2' by the connector 24. Therefore, after multiple cable troughs 2, 2' are installed, they can be connected without moving the cable troughs 2, 2', and the amount of excavation of the embankment can be further reduced. This can further improve the workability of cable installation work.

[0109] Furthermore, according to this embodiment, the connector 24 is flat and has two opposing concave fitting portions 241, 242, and the cable trough 2 is connected to another cable trough 2' by clamping and fixing the fitting receiving portion 215 and another fitting receiving portion 215' by the two fitting portions 241, 242, respectively. Therefore, it is possible to secure a space through which the platform door cable passes while firmly connecting multiple cable troughs 2, 2'. This makes it possible to improve the durability of the installation structure for the platform door cable.

[0110] According to this embodiment, the connector 24 is substantially U-shaped and has two opposing vertical plate portions 243, 244 with recessed fitting portions 241, 242, and the cable trough 2 is connected to another cable trough 2' by clamping and fixing the fitting receiving portion 215 and another fitting receiving portion 215' by the two fitting portions 241, 242, respectively. Therefore, it is possible to secure a space through which the platform door cable C1 passes while firmly connecting the multiple cable troughs 2, 2'. This makes it possible to improve the durability and workability of the installation structure for the platform door cable.

[0111] Furthermore, according to this embodiment, the connector 24 is flat, and the cable trough 2 is connected to another cable trough 2' by clamping the connector 24 between the fitting receiving portion 215 and another fitting receiving portion 215' and being fitted and fixed. This makes it possible to connect a plurality of cable troughs 2, 2' and to sort the platform door cables C1 in the cable troughs 2, 2'. This makes it possible to further improve the workability of cable installation work.

[0112] Furthermore, according to this embodiment, the cable trough 2 is provided with hand holes 22 cut out from the upper ends of the side plates. This allows for a larger range of movement of the worker's hands within the cable trough 2. This further improves the workability of the cable trough installation work.

[0113] Although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and spirit of the invention, and are included in the scope of the invention and its equivalents described in the claims. [Explanation of symbols]

[0114] 100 Platform door installation structure 200 Installation structure of platform door cables 11, 12 Platform doors 13 Bulkhead 14 Tip Tile 15, 16 Foundation part 2 Cable Trough 21 Trough body 211 1st side plate 212 2nd side plate 213 Bottom plate 214 Ribs 215, 215a, 215b Fitting receiving portion 22 Hand Hole 23 Trough lid 24 Connectors 241, 242 Fitting part 243, 244 Vertical plate 245 Horizontal plate part 25 Covering plate 3 Notch C1 Platform door cable R2, R15, R16 cable route F11 Platform base F12 Platform surface 8. Conventional platform door cable installation structure 81, 82 Platform Doors 83 Bulkhead 84 Tip Tile 85, 86 Foundation part 91 Cable Cabinet 92 PC floor slab 93 PC floor slab support cross beam 930 Through hole C8 (conventional) platform door cable R80, R85, R86, R91 (traditional) cable routes F81 (conventional) platform base F82 (conventional) platform surface

Claims

1. A method for installing a platform door cable that is electrically connected to a platform door that is arranged along the outer edge of an embankment platform on the track side, comprising: a cable trough installation process for installing a resin cable trough, which is made of two opposing side plates and a bottom plate, with a substantially U-shaped opening space formed at the upper ends of the two side plates to support a load from above, and with a hand hole drilled in one of the side plates, in a space formed below the platform door, with the inner surface of the bottom plate oriented substantially upward and the side plate with the hand hole drilled therein exposed to the track side; a cable installation step of installing the platform door cable using the hand hole so as to pass through the opening space of the cable trough installed by the cable trough installation step; Having A construction method for installing cables for platform doors, characterized by the above.

2. The cable trough installation step includes installing a plurality of the cable troughs each having a fitting receiving portion formed on an inner surface thereof, The method further includes a cable trough connecting step of connecting a plurality of the cable troughs by repeatedly engaging and fixing the fitting receiving portion formed on the cable trough installed in the cable trough installation step with another fitting receiving portion formed on another adjacent cable trough using a connector. A method for installing a platform door cable according to claim 1.

3. The cable trough installation step includes placing a trough cover on the top of the two side plates of the cable trough, or placing a PC plate across the top of the two side plates. A method for installing a platform door cable according to claim 1 or 2.

4. The cable trough installation step includes installing the cable trough in the space having a covering plate installed thereon. A method for installing a platform door cable according to claim 1 or 2.

5. A platform door cable installation structure in which a platform door cable is electrically connected to a platform door arranged along the outer edge of the embankment platform on the track side, A resin cable trough is installed in a space formed below the platform door, and is made of two opposing side plates and a bottom plate, and has a substantially U-shaped opening space formed therein; A platform door cable installed so as to pass through the opening space of the cable trough; Equipped with The cable trough is installed such that a hand hole is drilled in any one of the side plates, the inner surface of the bottom plate is oriented substantially upward, and the side plate with the hand hole drilled therein is exposed to the railroad track side. The structure for installing cables for platform doors is characterized by the above.

6. Further comprising a connector for connecting adjacent cable troughs to each other, The cable trough has an inner surface formed with a fitting receiving portion into which the connector is fitted, and the fitting receiving portion and another fitting receiving portion formed on the inner surface of another adjacent cable trough are repeatedly fitted and fixed by the connector to be connected to the other cable trough, thereby obtaining a connection structure in which a plurality of the cable troughs are connected to each other. The structure for installing a platform door cable according to claim 5.

7. The connector is flat and has two opposing concave fitting portions, The cable trough has the fitting receiving portion protruding from the inner surfaces of the two side plates, and the fitting receiving portion and another fitting receiving portion protruding from the inner surfaces of two opposing side plates of the other cable trough are clamped and fitted and fixed by the two fitting portions, and this is repeated to obtain a connection structure that is connected to a plurality of the cable troughs. The structure for installing a platform door cable according to claim 6.

8. the connector is formed in a generally U-shape with two opposing vertical plate portions and one horizontal plate portion integrally formed via the horizontal plate portions, and has a concave fitting portion on each of the outer surfaces of the two vertical plate portions, the cable trough has the fitting receiving portion protruding from each of the outer surfaces of the two vertical plate portions, and the fitting receiving portion and the other fitting receiving portion protruding from the inner surfaces of two opposing side plates of the other cable trough are clamped and fitted and fixed by the fitting portions respectively possessed by the two vertical plate portions, repeatedly to obtain a connecting structure for connecting with a plurality of the cable troughs, The structure for installing a platform door cable according to claim 6.

9. The connector is flat, The cable trough has a pair of claw-shaped fitting receiving portions that are spaced apart and opposed to each other along the direction in which the two side plates face each other, protruding from the inner surface of the bottom plate, and the connector is clamped and fixed between the fitting receiving portion and a pair of opposing claw-shaped fitting receiving portions that are spaced apart and protruding from the inner surface of the bottom plate of the other cable trough in the direction in which the two side plates of the other cable trough face each other, and this is repeated to obtain a connecting structure that is connected to a plurality of the cable troughs. The structure for installing a platform door cable according to claim 6.

10. The cable trough is provided with the hand hole cut out from the upper end of the side plate. The installation structure for a platform door cable according to any one of claims 5 to 9.

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