Scaffolding on railway tracks

Abstract

To more efficiently perform high-altitude work on railroad tracks. [Solution] An on-track scaffolding for performing high-altitude work on tracks D within platform E of a railway station comprises at least a bogie A capable of running on tracks D, a platform B installed on bogie A and consisting of wedge-tightened scaffolding components assembled into a frame, and a high-altitude work device C that can freely enter and exit the platform B. By configuring the platform to receive support from both the roadbed F and platform E, stability is ensured when the high-altitude work device C enters, while the need to extend the platform B to the high-altitude work location is omitted, thereby shortening the time required to construct and remove the scaffolding during the limited hours at night.

Description

[Technical field]

[0001] The present invention relates to an above-track scaffold for performing work at height on the tracks of a railway station platform. [Background technology]

[0002] 2. Description of the Related Art A device described in Patent Document 1 below is known as a mobile scaffolding device for use on the platform of a railway station. This device is equipped with a trolley work platform that can move along the railway tracks (also called a "track"), an extension floor that connects to the platform side of the trolley work vehicle, and a support device that supports the extension floor. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2001-159232 A [Patent Document 2] JP 2007-126120 A Summary of the Invention [Problem to be solved by the invention]

[0004] The mobile scaffolding device described in Patent Document 1 leaves room for improvement in at least one of the following areas, for example. (1) The mobile scaffolding device described in Patent Document 1 is intended for installation of platform fences on a platform from the track side, and is not intended for use for high-altitude work above the tracks. If high-altitude work above the tracks were to be performed based on the mobile scaffolding device described in Patent Document 1, it would be necessary to further extend and construct the scaffolding upwards, which would increase the proportion of work required for constructing and removing the scaffolding during the limited work hours at night when trains are not running, reducing work efficiency. (2) The mobile scaffolding device described in Patent Document 1 is designed to be used by workers, and is not intended to provide the scaffolding with the strength to allow heavy equipment such as aerial work vehicles to enter the scaffolding. (3) When a means for detecting a person or object falling from the platform (such as the fall detection means (20) in Patent Document 2) is provided on the roadbed between the platform and the tracks, it may not be possible to install a support device for supporting the scaffolding on the roadbed.

[0005] Therefore, one object of the present invention is to provide a means for more efficiently carrying out high-altitude work on railway tracks at railway stations. [Means for solving the problem]

[0006] The present invention, which has been made to solve the above-mentioned problems, is an on-track scaffolding for performing high-altitude work on the tracks of a railway station platform, which comprises at least a bogie capable of running on the tracks, a platform installed on the bogie and consisting of wedge-tightened scaffolding members assembled into a frame shape, and a high-altitude work device that can freely enter and exit the platform, and the platform is configured to receive support from both the roadbed within the tracks and the platform. In addition, the present invention may be configured so that the platform includes at least a first frame located on the upper part of the bogie, a second frame connected to the platform side of the first frame by a wedge fastening, a third frame connected to the opposite side of the platform of the first frame by a wedge fastening, a deck constituting a scaffolding floor of the aerial work device, a first support connected to the second frame and configured to take a support from the platform, a second support connected to the third frame and configured to take a support from the roadbed, and casters connected to the third frame and capable of running on the roadbed. In addition, the present invention may be configured so that the first support includes at least a bracket that connects the first support to the third frame, and a jack base that is attachable to the bracket and installed on the platform. In addition, the present invention may be configured so that the bracket has at least a main support, a handle that connects to a component member of the platform at a position extending laterally from the main support portion, and a sub-support whose lower end can be fitted with the jack base at a position extending laterally from the support portion. The present invention may also be configured such that the railway station is a Shinkansen station. Effect of the Invention

[0007] The above-track scaffolding of the present invention enables work at height on the tracks of railway stations to be carried out more efficiently. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a schematic front view showing the overall configuration of an on-railway scaffolding according to the present invention. [Diagram 2] FIG. 4 is a schematic plan view showing the shape of a first frame. [Diagram 3] FIG. 4 is a schematic front view showing the shape of a first frame. [Figure 4] FIG. 4 is a schematic front view showing the shape of a second frame. [Diagram 5] FIG. 11 is a schematic front view showing the shape of a third frame. [Figure 6] FIG. 4 is a schematic front view showing the shape of a first support tool. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

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

[0010] <1> Overall configuration (Fig. 1) The above-track scaffolding of the present invention is a scaffolding that is set up on the tracks in order to carry out high-altitude work (such as recovery work on the inside of the roof of a station building) on ​​the tracks of a railway station platform. The on-railway scaffolding according to the present invention comprises a bogie A, a platform B and an aerial work device C, as shown in FIG. When performing high-altitude work on track D, after power transmission is stopped, bogie A and platform B are constructed on track D, and then high-altitude work equipment C is moved from platform E to platform B for use. Conversely, when the high-altitude work is completed, high-altitude work equipment C is moved to platform E, platform B is dismantled and bogie A is removed, and then power transmission is resumed.

[0011] <2> Cart (Fig. 1) The bogie A is an element for moving the on-railway scaffolding of the present invention over the railroad track D. In the present invention, the shape and structure of the carriage A are not particularly limited. In this embodiment, a trolley is used as the trolley A.

[0012] <3> Platform (Fig. 1, Fig. 2) The platform B is an element that serves as a base when the high-altitude work device C enters onto the railway track D in the above-railway scaffolding of the present invention. In the present invention, the shape and structure of the platform B are not particularly limited, but it is preferable that the structure can shorten the time required for construction and removal work, particularly within the range that can withstand the weight of the aerial work device C that will be entered. As shown in Figures 1 and 2, the platform B in this embodiment is configured to at least include a first frame 10, a second frame 20, a third frame 30, a deck 40, a first support 50, a second support 60 and casters 70, and is also configured to include other components such as connecting materials for spacing the framework unit consisting of the first frame 10, the second frame 20 and the third frame 30 at intervals in the direction of travel of the track D, and safety handrails erected to surround the deck 40. The details of each part will be explained below.

[0013] <3.1> First frame (Fig. 3) The first frame 10 is a member to be installed on the cart A. In the present invention, the shape and structure of the first frame 10 are not particularly limited. In this embodiment, the first frame 10 is formed into a truss shape with two vertical members 11, two horizontal members 12, one brace member 13, and two diagonal members 14. Each vertical member 11 and brace member 13 is provided with a disk-shaped flange 14 used for wedge fastening. As shown in FIG. 1, the first frame 10 is used by inserting the lower ends of the vertical members 11 into a jack base (reference numeral omitted) installed on a dolly A.

[0014] <3.2> Second frame (Fig. 4) The second frame 20 is a member that is attached to the home E side of the first frame 10 by wedge fastening. In the present invention, the shape and structure of the second frame 20 are not particularly limited. In this embodiment, the second frame 20 is formed into a truss shape with one vertical member, two horizontal members, one brace member, and one diagonal member. The vertical member and brace member are provided with disk-shaped flanges 15 used for wedge fastening. Moreover, in the second frame 20, a wedge fastening mechanism for fastening to the first frame 10 is provided at one end of each cross member. In this embodiment, of the two cross members, the upper cross member is provided with a locking device 21 that can be inserted into a through hole provided in the flange 15a of the first frame 10 shown in Figure 2, and the end of the lower cross member is provided with a fastener 22 that can be wedge fastened to a through hole provided in the flange 15b of the first frame 10.

[0015] <3.3> Third frame (Fig. 5) The third frame 30 is a member that is attached to the first frame 10 by wedge fastening on the side of the first frame 10 opposite the home E side. In the present invention, the shape and structure of the third frame 30 are not particularly limited. In this embodiment, the third frame 30 is formed in a truss shape using two vertical members, two horizontal members, one brace member, and two diagonal members. Moreover, in the third frame 30, a wedge fastening mechanism for fastening to the first frame 10 is provided at one end of each cross member. Each longitudinal member is provided with a flange on the disk for use in wedge fastening. In this embodiment, of the two cross members, the upper cross member is provided with a locking device that can be inserted into a through hole provided in flange 15c of the first frame 10 shown in Figure 2, and the lower end is provided with a fastener that can be wedge fastened to a through hole provided in flange 15d of the first frame 10. In this embodiment, a fitting portion 33 is provided at the lower end of each vertical member for connecting a second support member 60 (described later) or a single pipe connected to a caster 70.

[0016] <3.4> Deck (Fig. 2) The deck 40 is a member that serves as a foothold for the high-altitude work device C that enters the platform B. In the present invention, the shape and structure of the deck 40 are not particularly limited, but it is preferable that the deck 40 does not require heavy machinery for transportation and can be laid and removed by human power. In this embodiment, the deck 40 is made of plywood, and each sheet is designed to weigh about 20 kg to 25 kg. As a result, unlike the steel deck 40, the deck 40 does not require heavy machinery for transportation, and can be installed and removed manually.

[0017] <3.5> First support (Fig. 6) The first support 50 is a member for providing support from the platform E against the load acting on the platform B. In the present invention, the shape and structure of the first support tool 50 are not particularly limited. In this embodiment, the first support 50 is composed of a bracket made up of a single main pillar 51, a gripping portion 52 provided on the open end side of the arm extending from the main pillar 51, and a sub-pillar 53 provided on the open end side of the cross member and diagonal member extending from the main pillar 51, and a jack base (not shown in Figure 6) attached to the lower end of the sub-pillar.

[0018] <3.5.1> Main pillar (Fig. 6) The main support 51 is a member that serves as a connecting member for providing the sub-support 53 above and the gripping portion 52 below. In the present invention, the shape and structure of the main support 51 are not particularly limited. In this embodiment, the main support 51 is made of a single tube member, and two arms are attached to the lower side of the main support 51 so that they extend out laterally, while a cross member and a diagonal member are provided at a distance above the main support 51.

[0019] <3.5.2> Grip part (Fig. 6) The gripping portion 52 is a member for connecting the first support 50 to the gantry B by gripping the members constituting the gantry B. In this embodiment, the gripping portion 52 is formed by a single pipe clamp attached to the open ends of two arms attached to the main support, and this gripping portion 52 is gripped to the vertical member of the second frame 20 shown in Figure 4.

[0020] <3.5.3> Sub-support (Fig. 6) The sub-pillar 53 is a member for attaching a jack base to be installed on the platform E. In this embodiment, the sub-support 53 is made of a slightly shorter single pipe and connects the free ends of the cross members and diagonal members extending from the main support 51. In addition, the lower end of the sub-support 52 is configured so that a jack base can be attached.

[0021] <3.5.4> Orientation of the first support (Fig. 2) In the present invention, the installation direction of the first support 50 is not particularly limited, and can be appropriately determined within a range in which an appropriate copy can be obtained from the platform E. 2, in this embodiment, the first supports 50 are provided on both sides of the platform B, and are installed at a slight angle so that the distance between the jack bases is wider than the width of the platform B. This arrangement maintains the stability of the support and reduces the first supports 50 from interfering with the movement of the high-altitude work equipment C.

[0022] <3.5.5> Reasons for taking a copy from home (Figure 1) As described above, the first support 50 provided on the platform E side of the platform B is configured to receive support from the platform rather than from the roadbed F. This is because the roadbed F between platform E and track D may be equipped with a means for detecting falling people or objects ("fall detection mat G" in Figure 1), and when an attempt is made to remove a backup from the roadbed F on the platform E side of platform B, this fall detection mat G may interfere with the backup. In addition, since the first support 50 can be seen from the platform E, there is also the advantage that it is easy to check the condition of the first support 50 when the load is applied as the high-altitude work device C enters the platform B.

[0023] <3.6> Second support (Fig. 1) The second support 60 is a member for providing support from the roadbed F on the track D against the load acting on the platform B. In the present invention, the shape and structure of the second support 60 are not particularly limited. In this embodiment, the second support 60 is composed of a single pipe that can be fitted into the fitting portion 33b of the vertical member that constitutes the third frame 30 shown in Figure 5, and a jack base that is inserted into the lower end of the single pipe.

[0024] <3.7> Casters (Fig. 1) The casters 70 are members that function as auxiliary wheels when the above-railway scaffolding according to the present invention moves on the railroad track D. In the present invention, the casters 70 are not essential elements. For example, in cases where the travel of the carriage A alone is sufficient for moving the on-track scaffolding, the casters 70 can be omitted. Further, in the present invention, the shape and structure of the caster 70 are not particularly limited. In this embodiment, the caster 70 is composed of a single tube that can be fitted into the fitting portion 33a of the vertical member that constitutes the third frame 30 shown in Figure 5, and a wheel inserted into the lower end of the single tube. In the configuration of this embodiment, the jack bases provided on each of the first support 50 and the second support 60 are loosened so that they are not in contact with the roadbed or the platform, and the above-track scaffolding can be moved manually by workers using the bogie A and casters 70 to move.

[0025] <4> High altitude work equipment (Fig. 1, Fig. 2) The high-altitude work device C is a device for performing high-altitude work above the tracks D by entering the platform B. In the present invention, the type of the high altitude working device C is not particularly limited. In this embodiment, as the high altitude work device C, a vertical lifting crawler or the like can be used. It is preferable that the high-altitude work device C is set up in advance in a corner of the platform E, and then moved to near the platform B in parallel with the construction work of the platform B after the power transmission is stopped at night.

[0026] <5> Summary (Figure 1) As described above, according to the mobile scaffolding of this embodiment, the following effects can be obtained. (1) There is no need to construct platform B up to the location where the high-altitude work is performed. It is sufficient to construct platform B from platform E to a height where high-altitude work equipment C can enter, thereby further shortening the time required to construct and remove the scaffolding. (2) Since the first support device 50 can be used to take a backup from platform E, the mobile scaffolding of the present invention can also be applied to sites where a means for detecting people or objects falling from platform E is installed on the roadbed F between platform E and the railway track D. (3) The first support 50 and the second support 60 allow support to be provided from both the platform E and the roadbed F, so that the platform B is highly stable when the aerial work equipment C enters it. EXAMPLES

[0027] The on-track scaffolding of the present invention can also be used as a temporary passageway connecting adjacent platforms E by using the bogie A and platform B described above. In this case, the number of over-track scaffolding units to be used, the length of each frame, and the presence or absence of other components (such as connecting boards connecting the platforms B) can be set appropriately depending on the distance between the platforms E. [Explanation of symbols]

[0028] A: Cart B: Platform C: High altitude work equipment D: Railroad tracks E: Home F: Roadbed G: Fall detection mat 10: First frame 11: Vertical member 12: Horizontal material 13: Diagonal material 14: Flange 20: Second frame 21: Locking device 22: Binding device 30: Third frame 31: Fastener 32: Binding device 33: Fitting part 40: Floor slab 50: First support 51: Main support 52: Grip part 53: Sub-pillar 60: Second support 70: Caster

Claims

1. A scaffolding on railway tracks used for carrying out high-altitude work using a high-altitude work device on the railway tracks or for constructing a temporary passageway connecting opposing platforms at railway station platforms, A bogie that can run on the track, A platform installed on the cart and assembled with wedge-tightened scaffolding members in a frame shape; At least The platform is A first frame located on an upper portion of the dolly; A second frame connected to the home side of the first frame by a wedge fastening; a third frame connected to the opposite side of the platform of the first frame by a wedge fastening; A deck that constitutes an access surface for the high-altitude work device or a road surface for the temporary passage; a first support coupled to the second frame and configured to receive a support from the platform; A second support coupled to the third frame and configured to take a support from a roadbed within the track; and A caster connected to the third frame and capable of running on the roadbed; The present invention is characterized by comprising at least Above-track scaffolding for railway station platforms.

2. The first support is A bracket connected to the second frame; A jack base that is attachable to the bracket and installed on the platform; Characterized in that it contains at least 2. An above-track scaffolding for a railway station platform according to claim 1.

3. The bracket is The main pillar and A gripping portion that connects to a component of the platform at a position that extends laterally from the main support; A sub-support pillar having a lower end to which the jack base can be attached at a position extending laterally from the main support pillar; Characterized in that it has at least 3. An above-track scaffolding for a railway station platform according to claim 2.

4. The railway station is a Shinkansen station. An above-track scaffolding for a railway station platform according to any one of claims 1 to 3.

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