Scaffold on track

Abstract

To more efficiently perform high lift work on a railroad.SOLUTION: The on-track scaffold for performing high-place work on a track D in a platform E of a railway station includes at least a truck A capable of traveling on the track D, a working platform B installed on the truck A and formed by assembling a wedge fastening type scaffold member in a frame shape, and a high-place work device C capable of getting on the working platform B. To shorten the construction / removal time of a scaffold in a limited time at night by omitting the extension construction of a working platform B to a high lift work place while securing stability when a high lift work device C is driven in.SELECTED DRAWING: Figure 1

Description

[Technical Field]

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

[0002] BACKGROUND ART The device described in Patent Document 1 below is known as a mobile scaffolding device used 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 "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] Japanese Patent Application Laid-Open No. 2001-159232 [Patent Document 2] Japanese Patent Application Laid-Open No. 2007-126120 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 points: (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 in 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 upward, 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 intended for workers to enter the scaffolding, and is not intended to ensure that the scaffolding portion is strong enough to allow heavy equipment such as aerial work vehicles to enter. (3) When a means for detecting the fall of people or objects from the platform (such as the fall detection means (20) in Patent Document 2) is installed 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 of the objects of the present invention is to provide a means for more efficiently carrying out high-altitude work on the tracks of railway stations. [Means for solving the problem]

[0006] The present invention, which has been made to solve the above-mentioned problems, is a track-mounted scaffolding for performing high-altitude work on the tracks of a railway station platform, and comprises at least a bogie that can run on the tracks, a platform that is installed on the bogie and is made up of wedge-tightened scaffolding members assembled into a frame, 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. Furthermore, the present invention may be configured such that the gantry comprises at least a first frame located on top 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 slab that constitutes the scaffolding floor of the aerial work device, a first support connected to the second frame and configured to take up a support from the platform, a second support connected to the third frame and configured to take up 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 to include at least a bracket that connects the first support to the third frame, and a jack base that can be attached 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 gripping portion that connects to a component of the platform at a position extending laterally from the main support portion, and a sub-support that extends laterally from the support portion and has a lower end to which the jack base can be attached. The present invention may also be configured such that the railway station is a Shinkansen station. [Effects of the Invention]

[0007] The above-railway scaffolding of the present invention allows for more efficient work at heights on the tracks at railway stations. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a schematic front view showing the overall configuration of an on-railway scaffolding according to the present invention. [Figure 2] FIG. 3 is a schematic plan view showing the shape of a first frame. [Figure 3] FIG. 3 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. [Figure 5] FIG. 10 is a schematic front view showing the shape of a third frame. [Figure 6] FIG. 3 is a schematic front view showing the shape of a first support tool. DETAILED DESCRIPTION OF THE INVENTION

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

[0010] <1> Overall configuration (Fig. 1) The above-railway scaffolding of the present invention is a scaffolding that is set up on the tracks to perform high-altitude work on the tracks of a railway station platform (such as recovery work on the inside of the roof of a station building). As shown in FIG. 1, the on-railway scaffolding according to the present invention comprises a bogie A, a platform B, and a high-altitude work device C. 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, after which power transmission is resumed.

[0011] <2> Cart (Figure 1) The bogie A is an element for moving the on-railway scaffolding of the present invention on 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> Gantry (Figure 1, Figure 2) The platform B is an element that serves as a base when the high-altitude work device C is driven onto the railway track D in the over-railway scaffolding according to 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 be such that it can shorten the time required for construction and removal work, within the range that can withstand the weight of the aerial work device C that will be used to drive on it. As shown in Figure 1 or Figure 2, the platform B in this embodiment is configured to include at least a first frame 10, a second frame 20, a third frame 30, a deck 40, a first support 50, a second support 60, and a caster 70, and is also configured to include connecting materials for spacing the framework units consisting of the first frame 10, the second frame 20, and the third frame 30 apart in the direction of travel of the track D, and safety handrails erected to surround the deck 40. Each part will be described in detail below.

[0013] <3.1> First frame (Fig. 3) The first frame 10 is a member to be installed on the carriage 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 in a truss shape with two vertical members 11, two horizontal members 12, one strut 13, and two diagonal members 14. Each vertical member 11 and strut 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 the carriage A.

[0014] <3.2> Second frame (Fig. 4) The second frame 20 is a member that is attached to the first frame 10 on the platform 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. Furthermore, 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 fastening device 22 that can be wedged and fastened into 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 attached to the first frame 10 by wedge fastening on the side of the first frame 10 opposite to the platform 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. Furthermore, 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 fastening device that can be wedged and fastened into 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 floor for the high-altitude work device C that enters the platform B. In the present invention, the shape and structure of the deck slab 40 are not particularly limited, but it is preferable that it does not require heavy machinery for transportation and can be laid and removed manually. In this embodiment, the deck 40 is made of plywood, and each sheet is designed to weigh approximately 20 kg to 25 kg. As a result, unlike 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 generated on the platform B. In the present invention, the shape and structure of the first support member 50 are not particularly limited. In this embodiment, the first support device 50 is composed of a bracket made up of a single main support 51, a gripping portion 52 provided on the open end side of the arm extending from the main support 51, and a sub-support 53 provided on the open end side of the cross member and diagonal member extending from the main support 51, and a jack base (not shown in Figure 6) attached to the lower end of the sub-support.

[0018] <3.5.1> Main support (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 pipe member, and two arms are attached to the lower side of the main support 51 so that they extend out laterally, and horizontal and diagonal members are provided at intervals on the upper side of the main support 51.

[0019] <3.5.2> Grip (Fig. 6) The gripping portion 52 is a member for connecting the first support 50 to the gantry B by gripping the members that make up 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-support 53 is a member for attaching a jack base to be installed on platform E. In this embodiment, the sub-support 53 is made of a slightly short single pipe, and connects the open ends of the horizontal and diagonal members extending from the main support 51. 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 determined appropriately as long as an appropriate copy can be taken from the platform E. 2, in this embodiment, the first supports 50 are provided on both sides of the gantry B, and are installed at a slight angle so that the distance between each jack base is wider than the width of the gantry B. This arrangement maintains the stability of the support and reduces the first supports 50 from interfering with the movement of the aerial work equipment C.

[0022] <3.5.5> Reasons for taking a copy from home (Figure 1) As mentioned 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 retainer from the roadbed F on the platform E side of platform B, this fall detection mat G may interfere with the retainer. In addition, since the first support device 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 device 50 in response to the load applied when 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 member 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> Caster (Fig. 1) The casters 70 are members that function as auxiliary wheels when the on-railway scaffolding according to the present invention is moved on the railroad tracks D. In the present invention, the casters 70 are not essential elements. For example, if the travel of the carriage A alone is sufficient to move the on-rail scaffolding, the casters 70 can be omitted. Furthermore, 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 pipe 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 pipe. In the configuration of this embodiment, the jack bases provided on each of the first support device 50 and the second support device 60 are loosened so that they do not come into 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.

[0025] <4> High-altitude work equipment (Fig. 1, Fig. 2) The high-altitude work device C is a device that can enter the platform B to perform high-altitude work above the tracks D. In the present invention, the type of the high altitude work device C is not particularly limited. In this embodiment, a vertically ascending crawler or the like can be used as the high altitude work device C. It is preferable that the high-altitude work device C be 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, the mobile scaffolding according to this embodiment can provide the following effects. (1) There is no need to construct platform B up to the location where 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, which further reduces 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 stability of the platform B is high when the high-altitude work equipment C enters it. [Example]

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

[0028] A: Cart B: Platform C: Aerial 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: Locking device 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 the tracks for performing work at height on the tracks of a railway station platform, A bogie that can run on the tracks, A platform installed on the cart and assembled by assembling wedge-tightened scaffolding members into a frame shape; 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 in the track and the platform. Scaffolding above the tracks for railway station platforms.

2. The gantry is a first frame located on an upper portion of the carriage; 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 floor slab that constitutes a scaffolding floor of the aerial work device; 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 backing from the roadbed; a caster coupled to the third frame and capable of traveling on the roadbed; The present invention is characterized by comprising at least The above-track scaffolding for a railway station platform according to claim 1.

3. The first support is a bracket connected to the third frame; a jack base that is attachable to the bracket and installed on the platform; Characterized in that it includes at least 3. The above-track scaffolding for a railway station platform according to claim 2.

4. The bracket is The main pillar and a gripping portion that connects to a component of the gantry at a position that projects 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 support pillar; characterized by having at least 4. The above-track scaffolding for a railway station platform according to claim 3.

5. The railway station is a Shinkansen station.

5. An on-track scaffolding for use on a platform of a railway station according to any one of claims 1 to 4.

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