Method for constructing a scaffolding unit on railway tracks and a temporary walkway for railway station platforms.

Abstract

To provide a more convenient method for constructing temporary walkways using scaffolding on railway tracks. [Solution] A trackside scaffold A that can be used as a work platform for working at heights on railway tracks and as a temporary walkway, comprising at least a trolley B that can travel on the railway tracks D and a platform C installed on the trolley B. By making at least some of the members constituting the platform C into multi-purpose members F1 and F2 that can also be used as components of a connecting passage 50 that connects one trackside scaffold A1 and the other trackside scaffold A2, the number of components of the connecting passage 50 that need to be prepared separately from the trackside scaffold A can be reduced. Furthermore, by providing an extension mechanism to the member (second multi-purpose member F2) that is repurposed as a safety handrail installed on the side of the connecting passage 50, it is possible to provide adaptability to different distances between tracks due to differences in railway standards, etc.

Description

Technical Field

[0001] The present invention relates to an on-track scaffold that can be used as a scaffold for working at heights and a temporary passage on tracks such as conventional lines and the Shinkansen line, A railway track scaffolding unit made by combining multiple units. and a method for constructing a temporary passage for a railway station platform using the on-track scaffold. unit

Background Art

[0002] The applicant has conceived of an on-track scaffold according to Patent Documents 1 and 2 below as an on-track scaffold for performing high-altitude work and constructing a temporary passage on the platform of a railway station. The on-track scaffold a according to Patent Documents 1 and 2 shown in FIG. 4 includes at least a carriage b that can travel on a track d and a gantry c that is installed on the carriage b and has a scaffold member assembled in a frame shape. It is used for performing high-altitude work with a high-altitude work device f that enters the on-track scaffold a from the platform e, or for constructing a temporary passage between opposing platforms e by arranging the on-track scaffolds a on each of the plurality of tracks d laid between the opposing platforms.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0004] On the other hand, in Patent Documents 1 and 2 described above, regarding the members connecting the gantries of each on-track scaffold, it only assumes that a new separate member is prepared.

[0005] Therefore, one of the objectives of the present invention is to provide a more convenient means for constructing temporary walkways using scaffolding on railway tracks. [Means for solving the problem]

[0006] The present invention, made to solve the above problems, A railway track scaffolding unit that can be used as a temporary walkway by combining multiple railway track scaffolding structures, On the aforementioned railway tracks, it can be used as a standalone scaffold for working at heights. Scaffolding on the railway tracks A railway track scaffolding that can be used as a temporary walkway by combining multiple units. unit And, The aforementioned scaffolding on the railway tracks, A temporary walkway comprising at least a trolley capable of traveling on the tracks, and a platform installed on the trolley, and comprising beams and handrails that constitute a connecting path between the trackside scaffolding in the temporary walkway, The multi-purpose member, which is part of the structural frame, is moved from one of the trackside scaffoldings to the other trackside scaffolding, and the multi-purpose member, which is part of the structural frame, is moved from the other trackside scaffolding to the one trackside scaffolding. It is characterized by being constructed using [this method]. Furthermore, in the present invention, the multi-purpose member may be configured to include at least a first multi-purpose member, the first multi-purpose member to function as an auxiliary beam constituting the platform when the railway scaffolding is used as a high-altitude work platform, and to function as a support beam constituting the connecting path when the railway scaffolding is used as a temporary passageway. Furthermore, in the present invention, the multi-purpose member may be configured to include at least a second multi-purpose member, wherein when the railway scaffolding is used as a work platform for working at height, the second multi-purpose member functions as a handrail positioned such that the direction of travel of the railway scaffolding is the longitudinal direction among the three sides of the platform, and when the railway scaffolding is used as a temporary walkway, it functions as a handrail positioned on one of the two sides of the connecting walkway. Furthermore, in the present invention, the multi-purpose member comprises at least a first multi-purpose member and a second multi-purpose member, wherein the first multi-purpose member functions as an auxiliary beam constituting the platform when the railway scaffolding is used as a high-altitude work platform, and functions as a support beam constituting the connecting path when the railway scaffolding is used as a temporary passageway, and the second multi-purpose member functions as a handrail member among the handrail members arranged on three sides of the platform in plan view when the railway scaffolding is used as a high-altitude work platform, with the longitudinal direction being approximately the direction of travel of the railway scaffolding, and functions as a handrail member arranged on one of the two sides of the connecting path when the railway scaffolding is used as a temporary passageway. Furthermore, in the present invention, the second multi-purpose member may be provided with an expandable / contractable mechanism. Furthermore, the present invention relates to the above-mentioned railway track scaffolding Use the unit A method for constructing a temporary passageway connecting opposing platforms at a railway station, on each track Line Scaffolding is set up on the road, and among the adjacent scaffolding on the railway tracks, By moving a multi-purpose member, which is part of the structure of the platform, from one of the trackside scaffoldings to the other trackside scaffolding, and moving a multi-purpose member, which is part of the structure of the platform, from the other trackside scaffolding to the one of the trackside scaffoldings It is characterized by the construction of a connecting route. [Effects of the Invention]

[0007] Railway track scaffolding according to the present invention unit According to this, temporary walkways can be constructed more efficiently. [Brief explanation of the drawing]

[0008] [Figure 1] A schematic diagram showing the overall configuration of the railway track scaffolding according to the present invention. [Figure 2] A schematic diagram showing the state of the two railway track scaffolding structures before they were connected. [Figure 3] A schematic diagram showing the state after the two railway track scaffolding structures have been connected (the state of construction of the temporary walkway). [Figure 4] A schematic diagram showing conventional scaffolding on railway tracks. [Modes for carrying out the invention]

[0009] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

Embodiment

[0010] <1>Overall Structure (Fig. 1) The overhead workbench A according to the present invention is an overhead workbench installed on the track D for performing high-altitude work (such as renovation work on the platform and the upper part of the station) on the track D of the platform E of a railway station such as an existing line or a Shinkansen line, or for constructing a temporary passage connecting the opposing platforms E. The overhead workbench A shown in Fig. 1 comprises at least a carriage B and a gantry C.

[0011] <1.1>Variable Mechanism (Fig. 1, Fig. 3) The overhead workbench A according to the present invention can be variable into at least the following two forms (single form, connected form). The single form (Fig. 1) is a form in which the overhead workbench A is used alone, and the connected form (Fig. 3) is a form in which a plurality of overhead workbenches A are connected to each other for use. Details of the structure and variable method of each form will be described in the column <7> described later.

[0012] <2>Carriage (Fig. 1) The carriage B is an element for moving the overhead workbench A according to the present invention on the track D. In the present invention, the shape and structure of the carriage B are not particularly limited. In this embodiment, a trolley is used as the carriage B.

[0013] <3>Gantry (Fig. 1, Fig. 2) The gantry C is an element serving as a base part such as an access surface for a high-altitude work device or a passage for pedestrians or transportation in the overhead workbench A according to the present invention. In the present invention, the shape and structure of the gantry C are not particularly limited, but in particular, it is preferable that the structure can shorten the construction work and removal work time within a range that can withstand the weight of the high-altitude work device (not shown in Figs. 1 to 3) to be accessed. As shown in Figure 1, the platform C according to this embodiment comprises at least a main body 10 and a floor slab 20, and may also include a first support 30 attached to the platform E side of the main body 10, a second support 40 attached to the opposite side of the main body 10 from the platform side, and so on. The details of each part are explained below.

[0014] <4> Main body (Figure 3) The main body 10 is a component that is installed on the trolley. In the present invention, the shape and structure of the main body 10 are not particularly limited, and it can be constructed by appropriately combining members such as vertical members, horizontal members, diagonal members, and frame members. Furthermore, the components that make up the main body may include scaffolding materials that can be used for temporary scaffolding such as frame scaffolding.

[0015] <4.1> Dual-purpose components In the present invention, at least some of the components constituting the main body 10 may be configured to perform different functions (hereinafter also referred to as "dual-purpose components") by changing their mounting position or housing position, i.e., rearranging them, when changing from the single configuration to the connected configuration described above. In this invention, the type, number, structure, etc., of the multi-purpose components are not particularly limited. In the railway track scaffolding A shown in this embodiment, the main body 10 includes two types of multi-purpose members (a first multi-purpose member F1 and a second multi-purpose member F2).

[0016] <4.2> First multi-purpose component (Figure 1) The first multi-purpose member F1, when in its standalone form, functions as part of the support structure for the floor slab 20 of the railway scaffolding A. In this embodiment, the beam members that support the floor slab 20 laid on the platform C of the railway scaffolding A are conveniently divided into main beams 13 and auxiliary beams 14, based on whether or not they have a dual function. The main beam 13 and auxiliary beam 14 are housed in multiple housing sections 15 provided at predetermined intervals on longitudinal members perpendicular to them in a plan view. Note that some of the housing sections 15 do not house the main beam 13 or auxiliary beam 14 and remain in their open state. The main beam 13 is an essential structural element for giving the platform C sufficient strength to withstand the entry of high-altitude work equipment when it is in a standalone configuration, while the auxiliary beam 14 is not required to be an essential structural element for giving the platform the aforementioned strength. Thus, the two members differ in function and purpose. In this embodiment, the auxiliary beam 14 is used as the first multi-purpose member F1.

[0017] <4.3> Second multi-purpose component (Figure 1) The second multi-purpose component F2, when in its standalone form, functions as part of a component that constitutes a handrail (hereinafter also referred to as a "safety handrail") that is erected to cover the perimeter of the floor slab of the railway scaffolding A. In this embodiment, when the trackside scaffolding A is viewed from above, safety handrails are provided on three of the four sides of the trackside scaffolding A, excluding the side on which access is from platform E. Of these, the safety handrails on the two sides facing the longitudinal direction of the track D use braced pre-handrails, and on the remaining side, two long members (extendable handrails 12) with an extension mechanism in the longitudinal direction are used. The extendable handrails 12 are connected by wedge fastening between the cantilevered support columns 11 that constitute the main body 10, thereby providing a fence-like safety handrail. In this embodiment, the retractable handrail 12 is used as the second multi-purpose member F2.

[0018] <5> Deck slab (Figure 1) The deck slab 20 is a component that serves as a support floor for the elevated work equipment that is mounted on platform C. In the present invention, the shape and structure of the floor slab 20 are not particularly limited, but it is preferable that it does not require heavy machinery for transportation and can be laid and removed by hand. In this embodiment, the floor slab 20 is made of plywood, and the weight of each slab is designed to be approximately 20 kg to 25 kg. As a result, the floor slab 20 can be laid and removed manually without the need for heavy machinery for transportation, unlike steel floor slabs.

[0019] <6> First support, second support (Figure 1) The first support member 30 is a member that provides bracing from the platform E against the load acting on the platform C. Furthermore, the second support member 40 is a member that provides support from the roadbed on the track D against the load generated on the platform C. In the present invention, the shape and structure of the first support member 30 and the second support member 40 are not particularly limited. The details of the first support and / or second support are as described in the above-mentioned Patent Documents 1 and 2, and therefore a detailed explanation is omitted.

[0020] <7> Instructions for use (Figures 1-3) Next, the method of using the railway track scaffolding A according to this embodiment will be explained with reference to Figures 1 to 3.

[0021] <7.1> Standalone configuration (used as a scaffold for working at heights) (Figure 1) Figure 1 shows the trackside scaffolding A in a standalone state. More specifically, it shows the state in which safety handrails are installed on three of the four sides of the floor slab 20 in a plan view, excluding the side on the platform E side, making it usable as a high-altitude work scaffolding X.

[0022] <7.2> Connection configuration (use as a temporary passageway) (Figures 2 and 3) Figure 2 shows the state in which two track sections D1 and D2, installed between platforms E1 and E2, are each fitted with individual trackside scaffolding A1 and A2, respectively. Figure 3 shows the state in which the trackside scaffolding A1 and A2 are connected to construct a temporary walkway Y. As an example, we will explain the procedure for transitioning from the state shown in Figure 2 to the state shown in Figure 3. Please note that the following example procedure is merely one example, and the steps relating to the construction method according to the present invention can be rearranged or performed simultaneously as appropriate, within the bounds of consistency with the work.

[0023] <7.2.1> Adjusting the position of the scaffolding First, move the trackside scaffolds A1 and A2 so that they are located approximately on the same axis when viewed from above.

[0024] <7.2.2> Repositioning of auxiliary beam (first multi-purpose member) When the trackside scaffolding A1 and A2 are moved to approximately the same axis in a plan view, the three auxiliary beams 14 (first multi-purpose member F1) located below the floor slab of one of the trackside scaffolding A1 (partially omitted in Figure 3) are slid in the longitudinal direction of the auxiliary beams 14. The ends of each auxiliary beam 14 are then housed in the respective housing sections 15 provided on the other trackside scaffolding A2, and the auxiliary beams 14 are repositioned to be erected between the main body sections 10 of each trackside scaffolding A1 and A2, thereby constructing the support beams for the connecting passage 50 (sliding type) (Figure 3). Each auxiliary beam 14 may be removed from the main body 10 and reinstalled between the trackside scaffolding A1 and A2 (detachable type). Similarly, with respect to the other trackside scaffold A2, the three auxiliary beams 14 are repositioned in a sliding or detachable manner to be installed between it and the other trackside scaffold A1, and repurposed as support beams for the connecting passage 50. After the support beams are constructed, a new floor slab 20 (not shown in Figure 3) is laid on top of them to form a connecting passage 50, thereby creating a continuous passage between the floor slabs 20 originally installed on each trackside scaffolding A.

[0025] <7.2.3> Replacing the extendable handrail Next, the two retractable handrails 12 (second multi-purpose member F2) that make up the main body of one of the trackside scaffolding A1, and the cantilevered support column 11 (shown in Figure 2) to which the retractable handrails 12 were attached are removed. Then, the two removed telescopic handrails 12 are repositioned to be installed between the support posts to which the preceding handrails of the track scaffolding A1 and A2 are attached, while their lengths are appropriately adjusted to match the distance between the tracks D1 and D2 or the distance between the track centers, and are repurposed as safety handrails on one side of the connecting passage 50 (Figure 3). For the other trackside scaffolding A2, the same procedure is followed to repurpose the two retractable handrails 12 as safety handrails on the other side of the connecting passage 50.

[0026] <7.3> Completion of the temporary walkway (Figure 3) Therefore, in the railway track scaffolding according to this embodiment, a connecting passage 50 can be secured by rearranging three auxiliary beams 14 (first multi-purpose member F1) and two retractable handrails 12 (second multi-purpose member F2) from the platform C, and a temporary passage Y can be constructed by connecting the two railway track scaffoldings.

[0027] <8> Summary (Figure 1) As described above, the mobile scaffolding according to this embodiment provides the following effects. (1) Since the components of the trackside scaffolding A can be repurposed as at least one of the components of the connecting passage 50 that connects the trackside scaffolding A, the number of components of the connecting passage 50 that need to be prepared separately from the trackside scaffolding A can be reduced. (2) By providing an extension mechanism to the second multi-purpose member F2, which is repurposed as a handrail on the side of the connecting passage 50 that connects the scaffolding A on the railway tracks, it is possible to provide it with the ability to follow different distances between tracks D or track center distances due to differences in railway standards, etc. [Examples]

[0028] In the above-described embodiment 1, a temporary walkway Y is constructed by connecting two trackside scaffolding A (A1, A2). However, in the present invention, a temporary walkway Y may be constructed by connecting three or more trackside scaffolding A. In this case, it is sufficient to increase the number of repurposed members included in the components that make up the platform C of the trackside scaffolding A, or to procure additional members for the portion that cannot be repurposed with the repurposed members included in each trackside scaffolding A. Even in this case, the number of components of the connecting walkway that are prepared separately from the trackside scaffolding remains the same as in the conventional method. [Examples]

[0029] In the above-described embodiment 1, the platform C constituting the railway track scaffolding A is designed to withstand the weight of the aerial work equipment with only the main beam 13, excluding the auxiliary beam 14. However, for example, if the aerial work equipment is not used when the platform is connected, the design may include the main beam and auxiliary beam as in the standalone configuration to withstand the weight of the aerial work equipment. [Explanation of symbols]

[0030] A: Scaffolding on the railway tracks B: Dolly C: Gantry D: Railway tracks E: Home F1: First multi-purpose component F2: Second multi-purpose component X: Scaffolding for working at heights Y: Temporary passage 10: Main body 11: Overhanging post 12: Extendable handrail 13: Main beam 14: Auxiliary beam 20: Floor slab 30: First support 40: Second support 50: Connecting route a: Scaffolding on the railway tracks b: Dolly c: gantry d: railway tracks e: Home f: High-altitude work equipment

Claims

1. A railway track scaffolding unit that can be used as a temporary walkway by combining multiple railway track scaffolding units, each of which can be used individually as a high-altitude work platform on the railway tracks, The aforementioned scaffolding on the railway tracks, A trolley capable of running on railway tracks, A platform to be installed on the aforementioned trolley, It must have at least the following: In the aforementioned temporary passage, the beams and handrails that constitute the connecting paths between the scaffolding structures on the railway tracks are, The multi-purpose member, which is part of the structure of the platform, is moved from one of the trackside scaffoldings to the other trackside scaffolding, It is characterized by being constructed by rearranging a multi-purpose member, which is part of the structural components of the platform, from the other trackside scaffolding to be erected between it and the other trackside scaffolding. Scaffolding unit for use on railway tracks.

2. The aforementioned multi-purpose member, It comprises at least a first multi-purpose member and a second multi-purpose member, The first multi-purpose member is, When the above-mentioned railway track scaffolding is used as a scaffolding for working at heights, it functions as an auxiliary beam that constitutes the platform, When the aforementioned scaffolding on the railway tracks is used as the temporary passageway, it functions as a support beam that constitutes the connecting path. The second multi-purpose member is, When the aforementioned railway track scaffolding is used as a work platform for working at height, among the handrails arranged on the three sides of the platform in plan view, the handrails are arranged so that the longitudinal direction is approximately the direction of travel of the railway track scaffolding. When the above-mentioned scaffolding on the railway tracks is used as the temporary walkway, it functions as a handrail material positioned on one of the two sides of the connecting path. The railway track scaffolding unit according to claim 1.

3. The aforementioned multi-purpose member, It has at least a first multi-purpose member, When the above-mentioned railway track scaffolding is used as a scaffolding for working at heights, it functions as an auxiliary beam that constitutes the platform, When the aforementioned scaffolding on the railway tracks is used as the temporary walkway, it functions as a support beam that constitutes the connecting path, and is characterized in that The railway track scaffolding unit according to claim 1.

4. The aforementioned multi-purpose member, It has at least a second multi-purpose member, The second multi-purpose member is, When the above-mentioned railway track scaffolding is used as a work platform for working at height, the handrail material is positioned such that the direction of travel of the railway track scaffolding is the longitudinal direction among the three sides of the platform. When the above-mentioned scaffolding on the railway tracks is used as the temporary walkway, it functions as a handrail material positioned on one of the two sides of the connecting path. The railway track scaffolding unit according to claim 1.

5. The second multi-purpose member is characterized by having an expansion / contraction mechanism. The railway track scaffolding unit according to claim 2.

6. The second multi-purpose member is characterized by having an expansion / contraction mechanism. The railway track scaffolding unit according to claim 4.

7. A method for constructing a temporary passageway connecting opposing platforms at a railway station, using a trackside scaffolding unit as described in any one of claims 1 to 6, Trackside scaffolding is placed on each track, Of the adjacent scaffolding structures on the tracks, a multi-purpose member, which is part of the structural components of the platform, is moved from one of the tracks to the other tracks so as to be erected between them. The method is characterized by constructing a connecting passage by rearranging a multi-purpose member, which is part of the structural components of the platform, from the other trackside scaffolding to the other trackside scaffolding, so that it is installed between the two. Methods for constructing temporary walkways for train station platforms.

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