Mobile scaffolding

Abstract

To provide a mobile scaffolding that does not interfere with the use of factory cranes and allows for safe work even when roof support materials are corroded. [Solution] The mobile scaffolding according to this embodiment has a traveling body that can travel along a pair of crane rails that extend in directions parallel to each other.

Description

Technical Field

[0001] The present invention relates to a mobile scaffold.

Background Art

[0002] When repairing the roof and roof support members of an aged factory building, conventionally, a temporary scaffold was assembled on the floor of the factory, and the assembled temporary scaffold was used to repair the roof and roof support members. After the repair, the temporary scaffold was disassembled. The repair work was carried out in this manner. When there are multiple repair locations, it is necessary to assemble and disassemble the temporary scaffold for each repair location in the above-mentioned process, which requires a great deal of labor. In addition, during the repair work of the roof and roof support members, due to the presence of the temporary scaffold, there was a problem that the crane in the factory could not be used.

[0003] As a method of installing a temporary scaffold that allows the use of a crane during the repair work of the roof and roof support members and can reduce the amount of assembly and disassembly work, there is a method of installing a suspended scaffold from the roof support member. However, when the deterioration of the roof support member is progressing, using this method may cause the scaffold to collapse during the work, which poses a problem in terms of safety.

[0004] Also, as a method of installing a temporary scaffold for reducing the amount of assembly and disassembly work of the temporary scaffold, there is a method of providing a scaffold on the factory crane. In this case, there was a problem that the crane in the factory could not be used during the repair work of the roof and roof support members.

[0005] As another method for reducing the amount of disassembly work of the temporary scaffold, there is a method using a mobile scaffold. For example, in Patent Document 1, several iron pipes standing on a cart or a torii-frame scaffold (vity) are formed and used on both sides, and an elevating work floor (elevator pit) etc. is combined in the center. The elevating work floor moves up and down, and when moving horizontally, a hanger rail (C-shaped metalware) 0 is used for wall connection, and a traversing vehicle and a connecting clamp are combined inside, so that the elevating work floor can move 360 degrees in the required direction. A mobile scaffold according to the above method is disclosed. [Prior art documents] [Patent Documents]

[0006] [Patent Document 1] Japanese Patent Application Publication No. 9-144301 [Overview of the project] [Problems that the invention aims to solve]

[0007] However, the mobile scaffolding described in Patent Document 1 moves along rails installed on its bottom surface, which requires rails to be installed on the factory floor, making it unsuitable for use inside a factory.

[0008] This invention was made in view of the above circumstances and aims to provide a mobile scaffolding that does not hinder the use of factory cranes and allows for safe work even when roof support materials are corroded. [Means for solving the problem]

[0009] To solve the aforementioned problems, the present invention proposes the following means. (1) The mobile scaffolding according to embodiment 1 of the present invention is It has a traveling body that can travel along a pair of crane rails that extend in directions parallel to each other. (2) Embodiment 2 of the present invention is a mobile scaffold of Embodiment 1, It may also be equipped with a self-propelled mechanism. (3) Embodiment 3 of the present invention is a mobile scaffold according to Embodiment 1 or 2, The aforementioned traveling body is A pair of trolleys capable of traveling on the aforementioned crane rails, A structure connected to each of the aforementioned trolleys, It may be provided. (4) Embodiment 4 of the present invention is a mobile scaffolding according to Embodiment 3, The aforementioned structure may be of a modular design. (5) Embodiment 5 of the present invention is a mobile scaffold according to Embodiment 3 or Embodiment 4, The traveling carriage has four or more wheels, and the wheels may be double-flange wheels. (6)Aspect 6 of the present invention is in any one of the mobile scaffolds of Aspects 3 to 5, where the traveling carriage may further include side rollers. [Advantages of the Invention]

[0010] According to the present invention, it is possible to provide a mobile scaffold that does not hinder the use of a factory crane and can be operated safely even when the roof support member is corroded. [Brief Description of the Drawings]

[0011] [Figure 1] It is a front view showing the configuration of the mobile scaffold according to the first embodiment of the present invention. [Figure 2] It is a side view showing the configuration of the mobile scaffold according to the first embodiment of the present invention. [Figure 3] It is a plan view showing the configuration of the mobile scaffold according to the first embodiment of the present invention. [Figure 4] It is a front view showing the configuration of the mobile scaffold according to Modification 1 of the present invention. [Figure 5] It is a side view showing the configuration of the mobile scaffold according to Modification 1 of the present invention. [Figure 6] It is a plan view showing the configuration of the mobile scaffold according to Modification 1 of the present invention. [Figure 7] It is a front view showing the configuration of the mobile scaffold according to Modification 2 of the present invention. [Figure 8] It is a side view showing the configuration of the mobile scaffold according to Modification 2 of the present invention. [Figure 9] It is a plan view showing the configuration of the mobile scaffold according to Modification 2 of the present invention. [Modes for Carrying Out the Invention]

[0012] (First Embodiment) Hereinafter, with reference to the drawings, a mobile scaffold according to an embodiment of the present invention will be described. FIG. 1 is a front view showing the configuration of the mobile scaffold 100 according to the embodiment of the present invention. FIG. 2 is a side view showing the configuration of the mobile scaffold 100 according to the first embodiment of the present invention. FIG. 3 is a plan view showing the configuration of the mobile scaffold 100 according to the first embodiment of the present invention.

[0013] In the following description, the Y direction (first direction) is a direction parallel to the floor surface f1 of the factory F and is the direction (extending direction) in which the crane rails 50 extend. The X direction (second direction) is a direction parallel to the floor surface f1 of the factory F and is a direction intersecting the Y direction. For example, the Y direction is substantially orthogonal to the X direction. The Z direction (third direction) is the height direction of the factory F and is a direction intersecting the X direction and the Y direction. For example, the Z direction is substantially orthogonal to the X direction and the Y direction. The direction downward in the Z direction refers to the direction from the crane rails 50 toward the floor surface f1 along the Z direction. The direction upward in the Z direction refers to the direction opposite to the direction from the crane rails 50 toward the floor surface f1 along the Z direction. However, the "up" and "down" referred to in this specification are expressions for convenience of explanation and do not define the direction of gravity.

[0014] The mobile scaffold 100 according to the first embodiment has a traveling body 40 that can travel along a pair of crane rails 50 extending in parallel with each other.

[0015] The traveling body 40 according to the first embodiment includes a pair of traveling trolleys 20 that can travel on the crane rails 50 and a structure 10 connected to each traveling trolley 20. Hereinafter, each part will be described.

[0016] (Crane rails 50) The crane rails 50 are rails for a crane installed in the factory. Known rails for an overhead crane can be used. The rail span S, which is the interval between the crane rails 50, is, for example, 10 m or more. The upper limit of the rail span S depends on the factory, but is, for example, 50 m or less.

[0017] (Structure 10) The structure 10 is positioned on a pair of trolleys 20 and fixed to each trolley 20. The method of fixing the structure 10 to the trolleys 20 is not particularly limited. The structure 10 extends in the X direction. Fixing the trolleys 20 to the structure 10 may be done, for example, with high-tension bolts. The structure 10 is preferably of a modular design.

[0018] The width W of the structure 10 is set appropriately according to the rail span S. For example, the width W of the structure 10 is 10m or more. For example, the upper limit of the width W of the structure 10 is 50m or less.

[0019] The length L of the structure 10 is not particularly limited as long as space for repair work can be secured. The length L of the structure 10 is 5m or more. The length L of the structure 10 is, for example, 20m or less.

[0020] The structure 10 of the first embodiment comprises a plurality of inter-beam beams 12 and a plurality of longitudinal beams 14. The inter-beam beams 12 extend in the X direction and comprise a plurality of inter-beam members 13. The inter-beam members 13 are arranged in a line along the X direction and are connected to each other at their ends. The length and number of inter-beam members 13 can be appropriately selected to match the rail span S. For example, there are six inter-beam beams 12. The method of fixing the inter-beam members 13 to each other is not particularly limited. For example, the inter-beam members 13 may be fixed to each other using high-tension bolts. The inter-beam members 13 are not particularly limited as long as they maintain sufficient strength as scaffolding. The inter-beam members 13 are preferably made of steel. For example, SS400 HM800 can be used as the steel material for the inter-beam members 13.

[0021] The longitudinal beam 14 extends in the Y direction and comprises a plurality of longitudinal members 15. The longitudinal members 15 are arranged in a row along the Y direction and connected via the inter-beam members 13. The number and length of the longitudinal members 15 can be appropriately selected according to the length L of the trolley 20. For example, there are five longitudinal beams 14. The method of fixing the longitudinal members 15 and the inter-beam members 13 is not particularly limited. The longitudinal members 15 and the inter-beam members 13 may be fixed using high-tension bolts. The longitudinal members 15 only need to maintain strength as scaffolding and are not particularly limited. The longitudinal members 15 are preferably made of steel. Examples of steel materials for the longitudinal members 15 include SS400 HN200.

[0022] (Traction car 20) The traveling trolley 20 comprises a base 24 and four or more wheels 22. The wheels 22 are rotatably mounted on the base 24. The base 24 is not particularly limited as long as it can support the structure 10. The number of wheels 22 can be four or more. By having four or more wheels 22, the stability of the mobile scaffolding 100 can be improved. In this embodiment, there are six wheels on each side, for a total of twelve wheels. In the first embodiment, the number of wheels in the traveling trolley 20 is six. A pair of traveling trolleys 20 are each placed on a pair of crane rails 50 that extend in directions parallel to each other. By placing them in this way, the traveling body 40 can travel along a pair of crane rails 50 that extend in directions parallel to each other.

[0023] It is preferable that the wheel 22 is a double-flange wheel. By making the wheel 22 a double-flange wheel, it is possible to suppress the wheel from falling from the crane rail 50.

[0024] (scaffold) Further known scaffolding may be installed on the structure 10. For example, scaffolding boards may be placed on the structure 10, or a frame stage scaffolding may be installed.

[0025] The mobile scaffolding 100 according to the first embodiment has been described above. Since the mobile scaffolding 100 has a traveling body 40 that can travel along a pair of crane rails 50 that extend in directions parallel to each other, it does not interfere with the use of factory cranes and allows for safe work even when the roof support material is corroded.

[0026] In the first embodiment, the number of beams 12 in the direction of the beams was 6, but the present invention is not limited to 6 beams 12 in the direction of the beams. The number of beams 12 in the direction of the beams can be appropriately changed according to the load capacity of the running body 40.

[0027] In the first embodiment, the number of longitudinal beams 14 was five, but the present invention is not limited to five longitudinal beams 14. The number of longitudinal beams 14 can be appropriately changed according to the load capacity of the running body 40.

[0028] In the first embodiment, the base 24 of the trolley 20 was composed of one component, but it may be composed of multiple components. This allows the length of the trolley 20 to be adjusted according to the length of the structure 10.

[0029] (Variation 1) Next, a mobile scaffolding according to Modification 1 of the present invention will be described. Figure 4 is a front view showing the configuration of the mobile scaffolding 100A according to Modification 1 of the present invention. Figure 5 is a side view showing the configuration of the mobile scaffolding 100A according to Modification 1 of the present invention. Figure 6 is a plan view showing the configuration of the mobile scaffolding 100A according to Modification 1 of the present invention. The mobile scaffolding 100A has a traveling body 40A that can travel along a pair of crane rails 50 that extend in directions parallel to each other.

[0030] The traveling body 40A according to Modification 1 comprises a pair of traveling carriages 20 capable of traveling on a crane rail 50, a structure 10 connected to each traveling carriage 20, and a self-propelled mechanism 60. The following describes each part.

[0031] (Structure 10) The structure 10 is positioned on a pair of trolleys 20 and fixed to each trolley 20. The method of fixing the structure 10 to the trolleys 20 is not particularly limited. The structure 10 extends in the X direction. The trolleys 20 and the structure 10 may be fixed, for example, with high-tension bolts. The structure 10 is preferably of a modular design. The structure 10 includes an area where a generator 62 can be installed.

[0032] The structure 10 comprises a plurality of inter-beam beams 12 and a plurality of longitudinal beams 14. The inter-beam beams 12 extend in the X direction and comprise a plurality of inter-beam members 13. The inter-beam members 13 are arranged in a line along the X direction and are connected to each other at their ends. The length and number of inter-beam members 13 can be appropriately selected to match the rail span S. For example, there are six inter-beam beams 12.

[0033] The longitudinal beam 14 extends in the Y direction and comprises a plurality of longitudinal members 15. The longitudinal members 15 are arranged in a row along the Y direction and connected via the inter-beam members 13. The number and length of the longitudinal members 15 can be appropriately selected according to the length L of the trolley 20. For example, there are five longitudinal beams 14.

[0034] (Traction car 20) The traveling trolley 20 comprises a base 24 and four or more wheels 22. The wheels 22 are rotatably mounted on the base 24. The number of wheels can be four or more. By having four or more wheels 22, the stability of the mobile scaffolding 100A can be improved. In the first embodiment, the number of wheels in the traveling trolley 20 is six. A pair of traveling trolleys 20 are each placed on a pair of crane rails 50 that extend in directions parallel to each other. By placing them in this way, the traveling body 40 can travel along a pair of crane rails 50 that extend in directions parallel to each other.

[0035] At least one of the multiple wheels 22 of the trolley 20 receives driving force from the motor 64. Preferably, driving force is received from the motor 64 in each of the pair of trolleys 20. Preferably, the wheels 22 are double-flange wheels. By making the wheels 22 double-flange wheels, it is possible to suppress the falling of the mobile scaffolding 100A from the crane rail 50.

[0036] (Self-propelled mechanism 60) The self-propelled mechanism 60 is not particularly limited as long as it can propel the vehicle 40A under the control of an operator. In modified example 1, the self-propelled mechanism 60 includes a generator 62, a motor 64, and a control unit (not shown).

[0037] (Generator 62) The generator 62 is electrically connected to the motor 64 and supplies power to the motor 64. The generator 62 is not particularly limited as long as it can supply the power necessary to drive the motor 64. For example, the generator 62 is a single-phase 100V generator.

[0038] (Motor 64) The motor 64 moves the vehicle body 40A by rotating the wheels 22. The motor 64 is not particularly limited as long as it can move the vehicle body 40A, and any known motor can be used.

[0039] (Control Unit) A control unit (not shown) controls the generator 62 and the motor 64 to move the mobile body 40A based on the operator's actions, for example.

[0040] The mobile scaffolding 100A according to Modification 1 has been described above. Since the mobile scaffolding 100A has a traveling body 40A that can travel along a pair of crane rails 50 that extend in directions parallel to each other, it does not interfere with the use of factory cranes and allows for safe work even when the roof support material is corroded.

[0041] The mobile scaffolding 100A of Modified Example 1 is further equipped with a self-propelled mechanism 60, making it possible to propel the mobile scaffolding 100A based on the operator's commands. This further improves the efficiency of repair work.

[0042] (Modification 2) Next, a mobile scaffolding according to Modification 2 of the present invention will be described. Figure 7 is a front view showing the configuration of the mobile scaffolding 100B according to Modification 2 of the present invention. Figure 8 is a side view showing the configuration of the mobile scaffolding 100B according to Modification 2 of the present invention. Figure 9 is a top view showing the configuration of the mobile scaffolding 100B according to Modification 2 of the present invention. The mobile scaffolding 100B has a traveling body 40B that can travel along a pair of crane rails 50 that extend in directions parallel to each other.

[0043] The modified form 2, the traveling body 40B, comprises a pair of traveling carriages 20B capable of traveling on the crane rails 50, and a structure 10 connected to each traveling carriage 20B. The parts will be described below.

[0044] (Structure 10) The structure 10 is positioned on a pair of trolleys 20B and fixed to each trolley 20B. The method of fixing the structure 10 to the trolleys 20B is not particularly limited. The structure 10 extends in the X direction. The trolleys 20B and the structure 10 may be fixed, for example, with high-tension bolts. The structure 10 is preferably of a modular design.

[0045] The structure 10 comprises a plurality of inter-beam beams 12 and a plurality of longitudinal beams 14. The inter-beam beams 12 extend in the X direction and comprise a plurality of inter-beam members 13. The inter-beam members 13 are arranged in a line along the X direction and are connected to each other at their ends. The length and number of inter-beam members 13 can be appropriately selected to match the rail span S. For example, there are six inter-beam beams 12.

[0046] The longitudinal beam 14 extends in the Y direction and comprises a plurality of longitudinal members 15. The longitudinal members 15 are arranged in a row along the Y direction and connected via the inter-beam members 13. The number and length of the longitudinal members 15 can be appropriately selected according to the length L of the trolley 20. For example, there are five longitudinal beams 14.

[0047] (Tractor 20B) The traveling carriage 20B comprises a base 24, four or more wheels 22, and a plurality of side rollers 26. The wheels 22 are rotatably mounted on the base 24. The number of wheels can be four or more. In the first embodiment, the number of wheels 22 in the traveling carriage 20 is six on each side. A pair of traveling carriages 20 are each placed on a pair of crane rails 50 that extend in directions parallel to each other. By placing them in this way, the traveling body 40 can travel along a pair of crane rails 50 that extend in directions parallel to each other.

[0048] It is preferable that the wheel 22 is a double-flange wheel. By making the wheel 22 a double-flange wheel, it is possible to suppress the wheel from falling from the crane rail 50.

[0049] It is preferable that the side rollers 26 be positioned on both sides of the wheel 22. This makes it possible to further suppress the falling of the mobile scaffolding 100B.

[0050] The mobile scaffolding 100B according to Modification 2 has been described above. Since the mobile scaffolding 100B has a traveling body 40B that can travel along a pair of crane rails 50 that extend in directions parallel to each other, it does not interfere with the use of factory cranes and allows for safe work even when the roof support material is corroded.

[0051] The mobile scaffolding 100B is equipped with side rollers 26, which further reduces the risk of the mobile scaffolding 100B falling.

[0052] The mobile scaffolding 100, 100A, and 100B of this disclosure have been described above. It should be noted that the technical scope of the present invention is not limited to the embodiments described above, and various modifications can be made without departing from the spirit of the invention. Furthermore, without departing from the spirit of the invention, the components in the embodiments described above can be replaced with well-known components, and the above-described modifications can be combined as appropriate. [Explanation of Symbols]

[0053] 10 Structure 12 Inter-beam directional beam, 13 Inter-beam directional member, 14 Girder directional beam, 15 Girder directional member, 20 Traveling carriage, 22 Wheels, 24 Base, 26 Side rollers, 40 Traveling body, 50 Crane rail, 60 Self-propelled mechanism, 62 Generator, 64 Motor, 100 Mobile scaffolding

Claims

1. A mobile scaffolding having a vehicle capable of traveling along a pair of crane rails extending in parallel directions.

2. The mobile scaffolding according to claim 1, further comprising a self-propelled mechanism.

3. The aforementioned traveling body is A pair of trolleys capable of traveling on the aforementioned crane rails, A structure connected to each of the aforementioned trolleys, A mobile scaffold according to claim 1 or 2, comprising:

4. The mobile scaffolding according to claim 3, wherein the aforementioned structure is of the assembly type.

5. The aforementioned trolley is equipped with four or more wheels. The mobile scaffolding according to claim 3, wherein the wheels are double-flange wheels.

6. The mobile scaffolding according to claim 3, wherein the aforementioned trolley further comprises side rollers.

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