Scaffolding base and temporary scaffolding assembly method

Abstract

To provide a scaffold base that enables easy assembly of a temporary scaffold even by a single operator and a method for assembling a temporary scaffold.SOLUTION: A scaffold base 2 comprises a main body 21 with a flat surface for installation on the ground, a square pipe 22 which is connected to the main body 21 and extends in a direction perpendicular to the installation surface of the main body 21, and into which a building site of a temporary scaffold can be inserted inside, and a pair of clamps supported by the square pipe 22 at different positions in a longitudinal direction of the square pipe 22 and gripping a pair of roots of the temporary scaffold respectively so that they extend in orthogonal directions to each other. The clamps may be a pair of rounded square clamps 23 which are aligned in the longitudinal direction of the square pipe 22 and are removably attached to the square pipe 22.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a scaffolding base and a method for assembling a temporary scaffolding. [Background technology]

[0002] In power plants and other facilities, temporary scaffolding is assembled to enable workers to work at heights during regular inspections and repair work. There are a wide variety of temporary scaffoldings, among which scaffolding that is installed on the ground is widely used. For example, Patent Document 1 discloses a temporary scaffolding that combines multiple pipes arranged in a substantially vertical, horizontal, and diagonal direction. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2022-25411 Summary of the Invention [Problem to be solved by the invention]

[0004] In the assembly work of the temporary scaffolding disclosed in Patent Document 1, one worker must support a pipe (building site) that extends in a substantially vertical direction while being connected to the scaffolding base, and another worker must clamp two pipes (root ties) that cross each other to the pipe that extends in a substantially vertical direction. Therefore, in the assembly work of the temporary scaffolding, at least two workers must be dispatched to the site, and there is a demand for a method that allows a single worker to easily assemble the temporary scaffolding.

[0005] The present invention has been made against this background, and has an object to provide a scaffolding base and a method for assembling a temporary scaffolding that allows even a single worker to easily assemble the temporary scaffolding. [Means for solving the problem]

[0006] In order to achieve the above object, the scaffold base according to the present invention comprises: A main body having a flat installation surface to be installed on the ground; a connector connected to the main body and extending in a direction perpendicular to the installation surface of the main body; Supports the temporary scaffolding inserted inside so that the building can stand on its own Pipes and A pair of clamps are supported on the pipe at different positions in the longitudinal direction of the pipe and respectively hold a pair of root ties of the temporary scaffolding so that they extend in directions perpendicular to each other; Equipped with. Effect of the Invention

[0007] According to the present invention, it is possible to provide a scaffolding base and a method for assembling a temporary scaffolding that allow even a single worker to easily assemble the temporary scaffolding. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a front view showing a configuration of a temporary scaffolding according to an embodiment of the present invention. [Diagram 2] FIG. 1 is a perspective view showing a configuration of a scaffolding base according to an embodiment of the present invention. [Diagram 3] 1 is a perspective view showing a configuration of a main body of a scaffolding base according to an embodiment of the present invention; [Figure 4] 1 is a plan view showing a relationship between a scaffolding base and a building site according to an embodiment of the present invention. FIG. [Diagram 5] 1 is a flowchart showing the flow of a manufacturing method of a scaffold base according to an embodiment of the present invention. [Figure 6] 1(a) to 1(c) are schematic diagrams each showing a process of an assembly method for a temporary scaffold according to an embodiment of the present invention. [Figure 7] 13 is a perspective view showing a modified example of a scaffolding base having a square pipe provided with a mark for attaching a rounded corner clamp. FIG. [Figure 8] FIG. 11 is a plan view showing the relationship between a scaffolding base and a building site according to another modified example of the present invention. [Figure 9] A front view showing the configuration of an integrated scaffolding base according to another modified example of the present invention. [Figure 10] A cross-sectional view showing the configuration of a scaffolding base according to another modified example of the present invention. [Figure 11] FIG. 13A is a perspective view showing a building site according to another modified example of the present invention, and FIG. 13B is a perspective view showing a round pipe to which the building site of FIG. [Figure 12] FIG. 13 is a front view showing the configuration of a bogie according to another modified example of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, a method for assembling a scaffolding base and a temporary scaffolding according to an embodiment of the present invention will be described in detail with reference to the drawings. In each drawing, the same or equivalent parts are given the same reference numerals. In the embodiment, an orthogonal coordinate system is used in which the axial directions of a pair of root ties that extend horizontally and intersect with each other are the X-axis and Y-axis directions, respectively, and the axial direction of the building site is the Z-axis direction. In the embodiment, the terms "vertical" and "orthogonal" are not limited to the angle between the two target members being strictly 90°, but include, for example, the angle between the two target members being within the range of 85° to 95°.

[0010] 1, the temporary scaffolding 1 includes a scaffolding base 2 having a flat installation surface to be installed on the ground, a building site 3 connected to the scaffolding base 2 and extending in a direction perpendicular to the installation surface of the scaffolding base 2, and a base tie 4 connected to the building site 3 and extending in a direction perpendicular to the building site 3. The building site 3 and the base tie 4 are made of, for example, pipes with a circular cross section.

[0011] The scaffolding base 2, when installed on the ground, supports the building site 3 and the root ties 4. Specifically, the scaffolding base 2 supports a pair of root ties 4 extending in directions intersecting each other, and also supports the building site 3 inserted therein so that it can stand on its own without human intervention.

[0012] As shown in Figure 2, the scaffolding base 2 comprises a main body 21 having a flat installation surface to be installed on the ground, a square pipe 22 connected to the main body 21, extending perpendicular to the installation surface of the main body 21 and allowing the building site 3 of the temporary scaffolding 1 to be inserted inside, and a pair of round corner clamps 23 attached to the square pipe 22 and aligned in the longitudinal direction of the square pipe 22, and each clamping a pair of root ties 4 of the temporary scaffolding 1 so as to extend in directions perpendicular to each other.

[0013] 3, the main body 21 includes a plate member 21a that is placed on the ground and a round pipe 21b that extends perpendicularly from the plate member 21a. The plate member 21a and the round pipe 21b are made of, for example, steel. The plate member 21a is, for example, a square plate-like member, and each corner of the plate member 21a is formed with a through hole 21c that passes perpendicularly through the plate member 21a and through which an anchor (not shown) can be inserted.

[0014] Furthermore, the plate member 21a is provided with a drainage hole 21d that penetrates the plate member 21a vertically and drains water that has entered inside the square pipe 22 to the outside. The drainage hole 21d is provided so as to communicate with the gap between the round pipe 21b and the square pipe 22. The plate member 21a may have one drainage hole 21d or multiple drainage holes 21d provided at positions spaced apart from each other.

[0015] The round pipe 21b has a circular cross section and is formed with an outer diameter smaller than the inner diameter of the building site 3 so as to be disposed inside the building site 3. As the main body 21, for example, a commercially available fixing base may be used as it is.

[0016] The square pipe 22 is a pipe with a square cross section, and is formed of, for example, a steel material. The square pipe 22 supports a pair of rounded corner clamps 23 arranged above and below. The length of one side of the square cross section of the square pipe 22 is, for example, about 6 cm, and the length of the square pipe 22 is, for example, about 20 cm to 30 cm. The square pipe 22 is connected to the upper surface of the plate member 21a so as to be disposed outside the round pipe 21b of the main body 21. Specifically, the square pipe 22 is connected to the upper surface of the plate member 21a so that the center point of the square pipe 22 and the center point of the round pipe 21b coincide with each other, and the sides of the square pipe 22 and the plate member 21a are parallel to each other.

[0017] As shown in Fig. 4, a gap is formed between the square pipe 22 and the round pipe 21b into which the pipe that is the building site 3 can be inserted. The building site 3 is inserted into the gap formed between the square pipe 22 and the round pipe 21b and is supported by both, so that it can stand on its own in a stable state.

[0018] The square pipe 22 is provided with a guide means on the inner surface thereof for preventing shaking of the building site 3. The guide members are, for example, a pair of guide plates 22a, 22b formed with an L-shaped cross section to match the shape of the square pipe 22 and sandwiching the building site 3 together with the round pipe 21b. The pair of guide plates 22a, 22b are fixed to the inner surface of the square pipe 22 so as to face each other.

[0019] Returning to FIG. 2, the rounded corner clamp 23 is a tool that supports the root tie 4 so that it extends in a direction perpendicular to the longitudinal direction of the square pipe 22 when attached to the square pipe 22. The rounded corner clamp 23 is an example of an orthogonal clamp that holds two pipes so that they extend in directions perpendicular to each other. The rounded corner clamp 23 includes a square clamp 23a that detachably holds the square pipe 22, and a round clamp 23b that detachably holds the root tie 4. The central axis of the square clamp 23a and the central axis of the round clamp 23b are perpendicular to each other. The square clamp 23a is formed to have a square cross section to match the shape of the square pipe 22, and the round clamp 23b is formed to have a circular cross section to match the shape of the root tie 4. The above is the configuration of the scaffolding base 2.

[0020] (Manufacturing method) Next, a flow of a manufacturing method of the scaffolding base 2 according to the embodiment will be described with reference to Fig. 5. In the following, it is assumed that the main body 21 is a fixed base in which a round pipe 21b is joined to a plate member 21a.

[0021] First, the square pipe 22 cut to an arbitrary length is joined to the plate member 21a of the main body 21 (step S1). Specifically, the square pipe 22 is placed on the upper surface of the plate member 21a so that the square pipe 22 covers the round pipe 21b of the main body 21 from the outside. At this time, it is preferable to arrange the square pipe 22 so that the center point of the square pipe 22 coincides with the center point of the round pipe 21b and the sides of the square pipe 22 and the plate member 21a are parallel to each other. Next, the base end of the square pipe 22 is joined to the upper surface of the plate member 21a by welding.

[0022] Next, a pair of round corner clamps 23 are attached to the square pipe 22 lined up above and below (step S2). Specifically, one round corner clamp 23 is attached to the base side of the square pipe 22, and the other round corner clamp 23 is attached above the part to which one round corner clamp 23 is attached. At this time, the pair of round corner clamps 23 are attached so that they face in different directions relative to the square pipe 22. Because adjacent faces of the square pipe 22 are perpendicular to each other, simply by attaching the pair of round corner clamps 23 in different directions, they can be attached so that the central axes of the round clamps 23b are perpendicular to each other. The above is the flow of the manufacturing method of the scaffold base 2.

[0023] (Assembling method) Next, a flow of a method for assembling the temporary scaffolding 1 according to the embodiment will be described with reference to FIG. First, as shown in FIG. 6(a), the scaffolding bases 2 are placed at four locations on the ground where the temporary scaffolding 1 is to be installed.

[0024] Next, the root ties 4 are attached to the rounded corner clamps 23 of the scaffolding base 2 so as to connect the adjacent scaffolding bases 2 to each other, and a rectangular frame composed of four root ties 4 is formed as shown in FIG. 6(b). Specifically, the round clamps 23b of the rounded corner clamps 23 are opened, the root ties 4 are placed, and the round clamps 23b are closed, so that the root ties 4 are attached to each rounded corner clamp 23 one by one. In the conventional method, it is necessary to check whether the rectangular frame composed of the root ties 4 is warped, but in this method, since the central axes of a pair of round clamps 23b extend perpendicular to each other, it is not necessary to check whether the rectangular frame composed of the root ties 4 is warped.

[0025] Next, as shown in Fig. 6(c), the building site 3 is inserted into the gap between the square pipe 22 and the round pipe 21b of the main body 21. In conventional construction methods, it is necessary to continue supporting the building site 3 manually until the temporary scaffolding 1 is assembled, but in this construction method, the building site 3 is stably supported by the square pipe 22 and the round pipe 21b, so manual support is not necessary. In addition, since the length of the square pipe 22 is about 20 cm to 30 cm, there is no possibility that the building site 3 will come off the square pipe 22 during normal work, and fixing the building site 3 to the square pipe 22 is not necessary. The above is the flow of the assembly method for the temporary scaffolding 1.

[0026] The temporary scaffolding 1 can be removed by reversing the assembly procedure, first removing the building site 3 from the scaffolding base 2, and then removing the ties 4 from the scaffolding base 2.

[0027] As described above, the scaffolding base 2 according to the embodiment includes the main body 21 having a flat installation surface to be installed on the ground, the square pipe 22 connected to the main body 21 and extending perpendicular to the installation surface of the main body 21, into which the building site 3 of the temporary scaffolding 1 can be inserted, and a pair of round corner clamps 23 attached to the square pipe 22 aligned in the longitudinal direction of the square pipe 22 and gripping a pair of base ties 4 of the temporary scaffolding 1 so as to extend in directions perpendicular to each other. Therefore, a worker supporting the building site 3 is not required, and the temporary scaffolding 1 can be easily assembled and removed even by one person.

[0028] Moreover, the scaffolding base 2 according to the embodiment can be constructed from a fixed base (an example of the main body 21), a square pipe 22, and a rounded corner clamp 23, all of which are general-purpose products, and therefore can be manufactured easily and at low cost.

[0029] The present invention is not limited to the above-described embodiment, and the following modifications are possible.

[0030] (Modification) In the above embodiment, the main body 21 includes the plate member 21a, but the present invention is not limited to this. The main body 21 may have any shape as long as it has a flat installation surface that can be installed on the ground, and may be formed as a block body, for example.

[0031] In the above embodiment, the plate member 21a of the main body 21 is square, but the present invention is not limited to this. The plate member 21a may have any shape as long as it can be placed on the ground, and may be, for example, disk-shaped.

[0032] In the above embodiment, the board member 21a is provided with the drainage holes 21d, but the present invention is not limited to this. Depending on the size of the scaffold base 2 and the usage environment, the drainage holes 21d may be omitted.

[0033] In the above embodiment, a worker attaches the pair of round corner clamps 23 to the square pipe 22 while checking the attachment position during the manufacturing process of the scaffolding base 2, but the present invention is not limited to this. For example, as shown in Fig. 7, a mark 21e for attaching the pair of round corner clamps 23 may be provided on the outer surface of the square pipe 22. The mark 21e is, for example, a linear mark for aligning the upper end of the round corner clamp 23 with the outer surface of the square pipe 22. The mark 21e may be formed by applying paint or by providing a groove.

[0034] In the above embodiment, the square pipe 22 is attached to the scaffolding base 2, and the round corner clamp 23 is attached to the square pipe 22 as an example of an orthogonal clamp, but the present invention is not limited to this. As long as the orthogonal clamps can be attached in directions perpendicular to each other, the square pipe 22 may be replaced with a pipe of another cross-sectional shape, for example a pipe with a circular cross-section.

[0035] In the above embodiment, a guide means is provided on the inner surface of the square pipe 22 to prevent the building site 3 from shaking relative to the square pipe 22, but the present invention is not limited to this. For example, a ring-shaped guide member may be provided on the outside of the round pipe 21b, instead of on the inner surface of the square pipe 22. Also, after the building site 3 is inserted into the square pipe 22, wedges may be driven into the gap between the square pipe 22 and the building site 3. The number of wedges to be driven can be appropriately selected by the worker.

[0036] As another variation, the guide means may be omitted by shifting the center of the square pipe 22 from the center of the round pipe 21b as shown in Figure 8 and adjusting a portion of the gap between the inner surface of the square pipe 22 and the outer surface of the round pipe 21b to match the thickness of the building site 3.

[0037] Also, the root ties 4 may be fixed using clamps other than orthogonal clamps. For example, as shown in Fig. 9, a pair of clamps 24 that respectively hold a pair of root ties 4 so as to extend in mutually orthogonal directions may be directly attached to the square pipe 22. Each clamp 24 is supported by the square pipe 22 at different positions in the longitudinal and radial directions of the square pipe 22 so that the pair of root ties 4 do not interfere with each other. Each clamp 24 may be fixed to the square pipe 22 by, for example, welding, riveting, etc. so that it cannot be repeatedly attached or detached.

[0038] In the above embodiment, the building site 3 is not fixed to the square pipe 22, but the present invention is not limited to this. A stopper may be provided to detachably fix the building site 3 to the square pipe 22. For example, as shown in Fig. 10, a through hole may be formed in the wall surface of the square pipe 22, and the nut 24a may be welded to the square pipe 22 so that the female screw hole of the nut 24a matches the through hole of the square pipe 22. In this way, the bolt 24b can be pressed against the wall surface of the building site 3 inside the square pipe 22 by tightening the bolt 24b against the nut 24a.

[0039] As another modification, as shown in FIG. 11(a), a single pipe with a pin is used as the building 3, in which a pin 3a extending radially inside the single pipe is attached to the base end of the single pipe, and as shown in FIG. 11(b), a pair of slits 21f that face each other radially can be provided in the round pipe 21b of the scaffolding base 2, into which the pin 3a of the single pipe with a pin can be inserted. The pin 3a is fixed to the single pipe by, for example, a rivet. Each slit 21f of the round pipe 21b extends downward from its upper end in the axial direction of the round pipe 21b, and is formed in an L-shape so as to extend in the circumferential direction of the round pipe 21b midway. Therefore, the pin 3a of the single pipe with a pin is inserted downward into the pair of slits 21f of the round pipe 21b, and then the single pipe with a pin is rotated in the circumferential direction, so that the single pipe with a pin can be attached without coming off the round pipe 21b.

[0040] In the above embodiment, a fixed base in which a round pipe 21b is joined to a plate member 21a is used as an example of the main body 21, but the present invention is not limited to this. For example, the fixed base of the main body 21 may be replaced with a jack base, and the position of the building 3 relative to the scaffolding base 2 may be adjustable. The jack base includes a plate member, a support column that extends vertically from the upper surface of the plate member and has a screw thread, and a handle that extends perpendicularly to the support column and is screwed into the screw thread of the support column. The handle is configured to move in the longitudinal direction of the support column by rotating relative to the support column, and to support the lower end of the building 3 at a desired position.

[0041] When joining the plate member of the jack base to the square pipe 22, they should be joined so that the handle of the jack base can rotate around the axis of the support inside the square pipe 22. This makes it possible to adjust the position of the building site 3 relative to the scaffolding base 2 by the position of the handle, and the temporary scaffolding 1 can be assembled horizontally even in places with steps.

[0042] 12, casters 5 may be attached to the bottom surface of the plate member 21a of the main body 21 to make the temporary scaffolding 1 movable. The casters 5 may be attached to the bottom surface of the plate member 21a, for example, by inserting bolts into the through holes 21c of the plate member 21a and the through holes of the casters 5, and tightening nuts onto the bolts. In addition, by assembling the temporary scaffolding 1 to match the shape of the object to be transported, a dolly for transporting the object to be transported can be created using the temporary scaffolding 1.

[0043] In the above embodiment, the temporary scaffolding 1 is composed of the building site 3 and the root ties 4, but the present invention is not limited to this. For example, a diagonal brace may be added that is connected to the intersection of the building site 3 and the root ties 4 and extends in a diagonal direction.

[0044] The above-mentioned embodiments are merely examples, and the present invention is not limited to these, and various embodiments are possible without departing from the spirit of the invention described in the claims. The components described in the embodiments and modifications can be freely combined. In addition, inventions equivalent to the inventions described in the claims are also included in the present invention. [Explanation of symbols]

[0045] 1 Temporary scaffolding 2 Scaffolding Base 3 Building site 4. Roots 21 Main unit 21a Plate member 21b Round pipe 22 Square pipe 23 Rounded corner clamp

Claims

1. A main body having a flat installation surface to be installed on the ground; A pipe connected to the main body, extending in a direction perpendicular to the installation surface of the main body, and supporting the building of the temporary scaffolding inserted inside so that it can stand on its own; A pair of clamps are supported on the pipe at different positions in the longitudinal direction of the pipe and respectively hold a pair of root ties of the temporary scaffolding so that they extend in directions perpendicular to each other; A scaffolding base equipped with

2. The inner surface of the pipe is provided with a guide means that contacts the building and prevents the building from shaking.

2. The scaffold base of claim 1.

3. A wedge is driven between the pipe and the building site to fix the building site to the pipe.

2. The scaffold base of claim 1.

4. The length of the pipe is within the range of 20 cm to 30 cm.

2. The scaffold base of claim 1.

5. The clamps are orthogonal clamps attached to the pipe in a longitudinal direction of the pipe.

2. The scaffold base of claim 1.

6. The pipe is a rectangular pipe having a square cross-sectional shape, The orthogonal clamp is a round corner clamp that grips the root entanglement when attached to the square pipe, 6. A scaffold base as claimed in claim 5.

7. Each clamp is fixed to the pipe at a different position in the longitudinal direction and circumferential direction of the pipe so that it cannot be repeatedly attached or detached.

2. The scaffold base of claim 1.

8. The body includes a square plate member, The central axis of the clamp that grips the root tie provided on the clamp extends parallel to one side of the square of the plate member.

2. The scaffold base of claim 1.

9. A main body having a flat installation surface to be installed on the ground; A pipe connected to the main body, extending in a direction perpendicular to the installation surface of the main body, and into which a temporary scaffolding can be inserted; A pair of clamps are supported on the pipe at different positions in the longitudinal direction of the pipe and respectively hold a pair of root ties of the temporary scaffolding so that they extend in directions perpendicular to each other. The main body includes a plate member and a round pipe connected to an upper surface of the plate member, The round pipe is disposed inside the pipe, and the gap formed between the round pipe and the pipe is configured so that the building site can be inserted. Scaffolding base.

10. A main body having a flat installation surface to be installed on the ground; A pipe connected to the main body, extending in a direction perpendicular to the installation surface of the main body, and into which a temporary scaffolding can be inserted; A pair of clamps are supported on the pipe at different positions in the longitudinal direction of the pipe and respectively hold a pair of root ties of the temporary scaffolding so that they extend in directions perpendicular to each other. The main body includes a plate member, a post connected to an upper surface of the plate member and having a screw thread formed thereon, and a handle extending perpendicular to the post and screwed into the screw thread of the post; The handle is configured to be rotatable around the axis of the support inside the pipe. Scaffolding base.

11. A method for assembling a temporary scaffold using the scaffold base according to any one of claims 1 to 10, comprising the steps of: placing four scaffold bases at spaced locations on the ground; A step of connecting adjacent scaffold bases with each of the four root ties so as to form a rectangular frame; The process of inserting different building sites into each scaffolding base, A method for assembling temporary scaffolding, comprising:

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