JP4124548B2 - Scaffolding plate fastening device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a scaffold plate fastening device for fastening a scaffold plate constituting a temporary passage main body temporarily installed in a civil engineering construction site.
[0002]
[Prior art]
When building various buildings and buildings such as medium- and high-rise buildings, bridges, roads, and underground structures, lay temporary passages for workers to walk safely at civil engineering and construction sites. I am doing so. Temporary passages installed in such places will be removed when construction is completed, so that temporary passages can be laid down in a short time and disassembled and removed in a short time at the end of construction. It is preferable to do.
[0003]
In the conventional temporary passage, multiple rows of scaffolding plates are arranged in parallel, and the width of the scaffolding plate is 30cm or narrower so that it can be easily transported to the construction site by truck or the like. A temporary passage having an arbitrary width can be laid according to the work content of the construction site.
[0004]
[Problems to be solved by the invention]
However, in the conventional temporary passage, a plurality of scaffolding plates are bundled in a parallel state by using a thick wire that is also called a wire, and the binding work using the wire is not easy. It will take time to build. In addition, when disassembling and removing a used temporary passage after the construction is completed, the wire must be cut with a cutter. Not only does the work take time, but the wire cut with the cutter is reused. I was forced to dispose of it. When the used wire is discarded, industrial waste is generated.
[0005]
An object of the present invention is to make it possible to easily perform a construction work of a temporary passage to which a scaffold plate is fastened in a short time.
[0006]
Another object of the present invention is to enable the scaffold plate to be easily disassembled in a short time when the temporary passage is removed.
[0007]
Another object of the present invention is to prevent industrial waste from being generated when the temporary passage is removed.
[0008]
[Means for Solving the Problems]
The scaffold plate fastening device of the present invention is a temporary passage body comprising two parallel horizontal girders and a scaffold plate arranged in parallel between the horizontal girders in a plurality of rows, A hook portion hooked to one horizontal girder member is provided at one end, and a detachable portion detachably engaged with the other horizontal girder member is provided at the other end, and the presser A handle portion for removing the attaching / detaching portion from the other horizontal girder at the time of removing the tool is provided at the other end of the pressing tool, and it bites into the surface of the scaffold plate to prevent the scaffold plate from shifting in the longitudinal direction. A biting claw member is provided on the presser.
[0009]
In the scaffold plate fastening device according to the present invention, a bite bent portion bent toward the scaffold plate is provided at a central portion of the presser, and the bite claw member is not in contact with the bite bent portion. It is characterized by biting into the surface of the board.
[0010]
The scaffold board fastening device of the present invention is characterized in that the scaffold boards are arranged in three rows between the two horizontal beams.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[0012]
FIG. 1 is a perspective view showing a temporary passage to which a scaffold plate fastening device according to an embodiment of the present invention is applied, and FIG. 2 is a cross-sectional view taken along line AA in FIG.
[0013]
As shown in the figure, this temporary passage has two horizontal girders 11 and 12 arranged in parallel to each other, and each horizontal girder is made of a steel material having a substantially U-shaped cross section. Has been. Between these horizontal girders 11 and 12, scaffolding plates 13 to 15 are arranged in parallel with each other in three rows, and a temporary passage main body 16 is formed by these scaffolding plates and the horizontal girders 11 and 12. It has become so.
[0014]
Beam members 17 for supporting the scaffold plates 13 to 15 are attached to the inner surfaces of the respective horizontal beams 11 and 12 at predetermined intervals. Accordingly, the two horizontal beams 11 and 12 are first arranged in parallel with each other at the place where the temporary passage is constructed, and the scaffold plates 13 to 15 are mounted on the horizontal beams with the beam members 17 attached to both horizontal beams. By arranging between the materials 11 and 12, a temporary passage can be constructed at an arbitrary position.
[0015]
The horizontal girders 11 and 12 shown in FIG. 1 have the same length and a length of about 6 m. Each of the scaffold plates 13 to 15 has a length of 2 m and a length of 4 m. Each of the scaffolding plates is formed by arranging 2m and 4m ones in a row. However, the horizontal girders and scaffolding plates can be set to any length. The width dimension of the temporary passage is about 94 cm in the illustrated case, but can be set to an arbitrary width dimension. The temporary passage laid at the construction site must have various lengths, and by connecting a plurality of temporary passages shown in FIG. 1, the entire length of the temporary passage can be set to any length according to the construction site. It can be.
[0016]
In order to fasten the scaffold plates 13 to 15 to the horizontal girders 11 and 12, a plurality of pressers 21 are used. One of the pressing members 21 is shown in an enlarged manner as shown in FIGS. 3 and 4, and is formed by bending a belt-shaped steel plate. A hook portion 22 is provided at one end of the presser 21, and the hook portion 22 is formed by being bent inward in an L-shaped cross section and is hooked on one horizontal girder 11. Each presser 21 is formed of a strip-shaped steel plate, but may be formed of a round bar or the like.
[0017]
An attaching / detaching portion 23 is provided at the other end of the presser 21, and this attaching / detaching portion 23 is first bent inward and then bent outward from its tip to be formed in a cross-sectional shape, and is attached to the other horizontal girder 12. Removably engaged. It should be noted that a screw member may be provided in the attaching / detaching portion 23, and the attaching / detaching portion 23 may be detachably engaged with the attaching / detaching portion 23 by the engagement between the screw member and the horizontal beam member 12. Further, the hook portion 22 may have a dogleg shape as in the case of the detachable portion 23.
[0018]
A handle portion 24 is continuously connected to the tip of the attaching / detaching portion 23 and bent outward. When the attaching / detaching portion 23 is detached from the horizontal beam member 12 and the presser 21 is removed from the temporary passage body 16, The operator holds the handle portion 24 in his hand and performs the detaching operation of the detachable portion 23. Note that a through hole 24a for hooking a tool or the like is formed in the handle portion 24 as shown in FIG.
[0019]
Before the pressing member 21 is attached to the temporary passage main body 16, as shown in FIGS. 3 and 4B, the holding member 21 is folded in half so that the central portion in the longitudinal direction protrudes inward. The central portion is a biting bent portion 25. The width dimension W of the presser 21 shown in FIG. 4 is about 50 mm, the length dimension L is about 94 cm, and the plate thickness t is about 4 mm. Further, the depth dimension D of the biting bent portion 25 shown in FIG. 4B when not attached to the temporary passage main body 16 is about 24 mm.
[0020]
On the inner surface of the presser 21, a band-shaped biting claw member 26 having the same width as the presser 21 is provided. The biting claw member 26 has a length shorter than that of the presser 21 and is attached to a central portion in the longitudinal direction of the presser 21 by a fixing means such as spot welding. As shown in FIG. 4B, the biting claw member 26 is bent in the center in the longitudinal direction corresponding to the bent portion 25, and both ends are bent in a direction away from the presser 21. Thus, both end portions are claw portions 27 and 28 that strongly press the surface of the scaffolding plate of the temporary passage main body 16. In the illustrated case, the length dimension M of the biting claw member 26 is about 33 cm, and the length dimension of the claw portions 27 and 28 is about 7 cm.
[0021]
A procedure for constructing a temporary passage by fastening the scaffolding plates 13 to 15 to the horizontal beam members 11 and 12 using the presser 21 will be described. The procedure is performed between the horizontal beam members 11 and 12 arranged at predetermined positions. A plurality of pressing members 21 are attached at predetermined intervals in the longitudinal direction of the temporary passage main body 16 in a state where the temporary passage main body 16 is assembled by arranging the number of scaffolding plates 13 to 15. .
[0022]
In order to attach the presser 21 to the temporary passage main body 16, as shown by a two-dot chain line A in FIG. 2, the other end of the presser 21 is hooked on the horizontal girder 11 with the hook portion 22 provided at one end of the presser 21. The horizontal girder 12 is moved closer. A state where the attaching / detaching portion 23 provided at the other end of the presser 21 is in contact with the horizontal beam 12 is indicated by a two-dot chain line B. When the other end of the presser 21 is strongly pressed under this state, the presser 21 is attached to the temporary passage body 16 as shown by a solid line in FIG. Thus, the pressing tool 21 can be quickly mounted on the temporary passage main body 16 with a simple operation. When attached, the presser 21 is in an extended state with a smaller bending angle due to elastic deformation than in the bent state before being attached.
[0023]
Even in the stretched state, the biting bent portion 25 in the central portion in the longitudinal direction of the presser 21 was originally bent toward the scaffold plate, so the biting bent portion 25 is the central scaffold plate among the three rows of scaffold plates. It will be strongly pressed to bite into the surface of 14. This prevents the scaffold plate 14 from shifting in the longitudinal direction.
[0024]
When the presser 21 is attached to the temporary passage main body 16, the claw portions 27 and 28 are pressed against the other scaffolding plates 13 and 15 while being elastically deformed in a direction approaching the presser 21. That is, in the attached state, the claw portion 27 is strongly pressed so as to bite into the surface of the scaffold plate 13, and the claw portion 28 is strongly pressed so as to bite into the surface of the scaffold plate 15. Thereby, it is prevented that the scaffold board 13 and the scaffold board 15 shift | deviate to a longitudinal direction.
[0025]
Since the center part of the holding tool 21 is bent toward the scaffold plate, the center part continues to apply the elastic force toward the scaffold plate when attached to the temporary passage main body 16. Thus, when the worker walks in the temporary passage, the center portion of the presser 21 can be prevented from floating. Thereby, the operator can walk safely without hooking his / her foot on the presser 21. Moreover, the plate thickness of the presser 21 is about 4 mm, and the lifting height of the scaffold plate is small, so that it does not interfere with the worker's walking.
[0026]
FIG. 1 is a diagram showing a set of temporary passages, and a temporary passage having a desired length can be laid by connecting a plurality of sets of temporary passages at a construction site. In order to connect the temporary passages, connecting tools 31 are attached to both ends of the horizontal beams 11 and 12.
[0027]
FIG. 5 is an enlarged view of one connecting tool 31. The connecting tool 31 is sized to enter the end of the horizontal beam and has a U-shaped cross section. The connecting tool 31 is provided with through holes 33 corresponding to the through holes 32 formed at the ends of the horizontal beam members of the temporary passage body, and by inserting the connecting pins 34 into these through holes, the connecting tool 31 is attached to a horizontal girder. The connecting tool 31 is further provided with a through-hole 33a. By using this through-hole 33a, another temporary passage main body connected adjacent to the one set of temporary passage main bodies can be attached. .
[0028]
Mounting holes 35 are formed in the horizontal beams 11 and 12 at predetermined intervals, and by attaching handrail columns (not shown) to the mounting holes 35, the temporary passage main body 16 is provided with safety for the operator. Handrails for can be assembled. When handrails are not required depending on the installation location of the temporary passage, the assembly of handrails is omitted.
[0029]
On the other hand, when the construction is completed and the temporary passage is removed, the presser 21 can be easily detached from the temporary passage main body 16 by pulling the handle portion 24 with the hand, and disassembling the temporary passage. Can be performed in a short time.
[0030]
It goes without saying that the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention.
[0031]
For example, the number of rows of scaffold plates attached in parallel to the temporary passage main body 16 is not limited to the three rows shown in the figure, and can be any number of rows. Moreover, the number of the claw members 26 provided on the presser 21 can be an arbitrary number.
[0032]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, the construction work and removal work of a temporary channel | path can be performed easily in a short time. Shifting of the scaffolding plates arranged in multiple rows between the horizontal beams is prevented by the presser, so that it becomes unnecessary to fasten the scaffolding plate to the horizontal beams and the worker walks in the temporary passage Even if it repeats, it can prevent that a scaffold board slip | deviates reliably and can ensure a worker's safe walk. Since the presser can be used repeatedly, it is possible to prevent the generation of waste materials and wastes during the dismantling and removal work of the temporary passage.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a temporary passage to which a scaffold plate fastening device according to an embodiment of the present invention is applied.
FIG. 2 is a cross-sectional view taken along line AA in FIG.
FIG. 3 is a perspective view showing a pressing tool.
4A is an enlarged plan view showing a pressing tool, and FIG. 4B is a front view of FIG.
FIG. 5 is an enlarged perspective view showing a connector.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 11, 12 Horizontal girder materials 13-15 Scaffolding board 16 Temporary passage main body 17 Beam material 21 Holding tool 22 Hook part 23 Detachment part 24 Handle part 25 Bending part 26 Biting claw members 27 and 28 Claw part 31 Connecting tool

Claims (3)

A temporary passage main body comprising two parallel horizontal girders and a scaffolding plate arranged in parallel between these horizontal girders,
A hook portion that is hooked to one of the horizontal girders is provided at one end, and a detachable portion that is detachably engaged with the other horizontal girder is provided at the other end, and
A handle part for removing the attaching / detaching part from the other horizontal beam member at the time of removing the pressing tool is provided at the other end of the pressing tool,
A scaffold plate fastening device, wherein a claw member with a bite that bites into the surface of the scaffold plate and prevents a shift in the longitudinal direction of the scaffold plate is provided in the presser. 2. The scaffolding plate fastening apparatus according to claim 1, wherein a biting bent portion bent toward the scaffolding plate is provided at a central portion of the presser, and the biting claw member is not in contact with the biting bent portion. A scaffolding plate fastening device, wherein the scaffolding plate bites into the surface of the scaffolding plate. The scaffold board fastening device according to claim 1 or 2, wherein the scaffold boards are arranged in three rows between the two horizontal girders.

Images