JPH11210222A - Scaffolding for wooden building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a scaffolding for preventing a fall accident, which is installed simply and easily and a mounted state of which is stabilized, in the roofing construction works of a two-storied wooden building. SOLUTION: The scaffolding for the wooden building consists of a metal fitting 1 being formed in a recessed shape having width broader than a column 2 and pinching and clamping the column 2 with a stiffening plate by screwing bolts after applying to the column 2, a hanging metal fitting 9, which is hung and supported to a girder 17 on the column and in which the metal fitting 1 is connected to a lower side section by bolts, a mounting section, which is fixed onto the metal fitting 1 and through which a beam is passed, a support 15, the beam 19, which is passed through the mounting section of the metal fitting 1 and in which one end is coupled with the support 15 by a clamp 21, and pipy handrails 16 joining the support 15. The metal fitting 1 may be fixed onto the column 2 in an extent that the metal fitting 1 is not moved because the metal fitting 1 is connected to the hanging metal fitting 9 hung and supported to the girder 17 at that time. Since both ends of the beam 19 are supported by the metal fitting 1 and the support 15, the mounted state of the beam 19 is stabilized, and the beam 19 is difficult to be bent and deformed by the applying of load and impact load.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scaffold which is temporarily installed for the purpose of preventing a worker from falling down when roofing a wooden building.

[0002]

2. Description of the Related Art In the construction of a wooden building, a pillar is generally laid on a foundation on a foundation, and in a building on the second floor or above, a beam and a girder are placed on the pillar, and then a shed is assembled. After assembling and setting up pillars, then hitting rafters on the main building at a fixed interval for roofing, hitting a field board on it,
After that, the rafters were trimmed, and the concealed ends were installed.

In such work, especially in eaves work, a fall accident is likely to occur. Therefore, when working on the roof, it is required by law to use a lifeline to prevent a fall accident. However, the use of the lifeline is hardly used because the work efficiency is significantly reduced. Regulatory authorities have also instructed temporary construction of scaffolds. By providing a scaffold, even if it falls down from the house, it can be caught by the scaffold and prevent it from falling down, but the labor and cost for building the scaffold increases,
In fact, it is hardly used.

Japanese Patent Application Laid-Open No. 57-137562 discloses that a tubular beam is fixed to a column by a fixing member in a direction perpendicular to the column.
There has been proposed a scaffolding device in which a scaffold is temporarily provided on a beam and a plate is hung over a column connected to a free end of the beam so that the worker can catch when the worker falls down from the eaves.

[0005]

The use of the above-mentioned scaffolding equipment makes it possible to easily provide a temporary scaffold for roofing work, but the beam is only supported in a cantilever manner on the pillars. The beam is stable and easily bends or deforms due to the impact of working on a scaffold or falling from the eaves. If the beam is not firmly fixed to the pillar with a fixing member, it may slip down.

SUMMARY OF THE INVENTION An object of the present invention is to provide a scaffold for falling prevention, which can be easily and easily attached, and has a stable attachment state as in a conventional scaffold.

[0007]

A scaffold according to the present invention comprises a hook-shaped hook which is hooked and supported on a beam or a girder on a pillar, a mounting bracket which is fastened to the hook and sandwiches the pillar, and Dressed,
Fastening means for fastening the column together with the mounting bracket, a beam which is inserted and supported so as to be able to slide laterally on the supporting means provided on the mounting bracket, a column, and a clamp which detachably connects one end of the beam to the column. , A scaffold plate that spans the beam, and a handrail that connects the columns.

According to the present invention, since the mounting bracket is supported by the hook, it does not slip down without being firmly fastened to the column by the fastening means, and the beam is supported at both ends by the mounting bracket and the column. Because it is supported, it is stable and hardly bends or deforms when working on a scaffold or when it falls down from the eaves and impacts the handrail.

The fastening means used in the present invention includes, for example, a fastening tool such as a bolt screwed into a mounting bracket, the fastening tool,
A patch plate or the like connected to the end of the fastener is exemplified. If only the former fastener is used, screw the fastener into the column and press the end of the fastener against the column. The mounting bracket is fastened to the column by pressing the plate against the column. Here, as the fastening tool, a bolt or a screw can be used as described above, but a thumb screw is preferably used. The former bolts and screws require tools such as a spanner and a screwdriver, whereas the latter thumb screws can be screwed in by hand without using tools.

The support means provided on the mounting bracket includes:
Round or square pipes, rails and the like can be exemplified, and preferably, the beam inserted into the support means can be fastened with fasteners such as bolts and screws. This fastening device is also preferably a thumbscrew for the reasons described above. As the clamp, a known clamp used in a conventional scaffold for connecting a column and a beam is used.

As the handrail, a pipe, a rod, a plate or any other handrail is used.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A mounting bracket 1 shown in FIG. 1 has a concave shape wider than a column 2, and is connected to a pair of upper and lower bolts, which are screwed on one side, as a thumb screw 3 and an end of the thumb screw. Or a fastening means comprising a backing plate 4 which is formed separately from the thumb screw 3. The mounting on the pillar 2 is performed after the mounting bracket 1 is applied to the pillar 2, Into the mounting bracket 1 and the backing plate 4
This is carried out by sandwiching the column 2 from both sides and tightening.

As shown in FIG. 2, a square pipe-shaped mounting portion 5 is fixed to the mounting bracket 1 as a beam support means in a lateral direction, and the mounting portion 5 has thumb screws 6 mounted on both sides thereof. The bolt 7 is fixed. As shown in FIG.
The hook 9 has a hook plate 9a fixed to the upper end of the square pipe to form a hook shape, and the hook plate 9a is supported by being hooked on a girder or a beam on a pillar. Bolt through holes 10 are formed at intervals, a bolt 7 protruding from the mounting bracket 1 is passed through the bolt through hole 10, and a wing nut 11 is screwed into the protruding end so as to be connected to the mounting bracket 1. Has become.

FIG. 3 shows an outline of a first floor roof and a scaffold temporarily provided for the second floor roof construction work using the above-mentioned metal fittings. Therefore, when temporarily setting up a scaffold, place the scaffold plate 13 on the ground, install a base jack 14 on the scaffold, build a pillar 15 made of a steel pipe on the jack, and place the vertically aligned pillars 15 on the lower side. The parts are connected by a steel pipe root 12 and at a position slightly higher than the eaves by handrails 16 also made of steel pipe. The struts 15 are connected to each other with bracing not shown. Before and after this, the hook 17 is hooked on the beam 17 using the hook 9 shown in FIG. The connection with the mounting bracket 1 is performed by aligning the bolt through hole 10 with the bolt 7 with the mounting bracket 1 raised to an appropriate height, passing the bolt 7, and then screwing the wing nut 11 into the protruding end of the bolt. Performed by After consolidation,
Each of the thumb screws 3 is screwed in, and the column 2 is sandwiched and fastened between the mounting plate 1 and the contact plate 4 pressed against the column 2.

Next, a beam 19 made of a square pipe is inserted into the mounting portion 5 of the mounting bracket 1, and the tip of the beam and the column 15 are clamped.
1 and screw each of the thumb screws 6 to fix the beam 19 to the mounting bracket 1. Thereafter, the scaffold plate 13 is bridged between the beams, and the scaffold plate 13 and the beams 19 are tied and connected with the rubber bands 22. After temporarily setting the scaffold as described above, rafters 24 are hit on the spar 17 and the pillar 2 at regular intervals, and a field board 25 is hit thereon. Then rafters 24
Are trimmed, and the ends are hidden or mounted. In such a series of work, the work at the eaves is mainly performed on the scaffold, but may be performed on the eaves as before.

After the above operation is completed, a scaffold for roofing work on the second floor is temporarily provided in the same manner as described above. That is, the scaffold 13 is placed on the field board 25, the base jack 14 is placed thereon, and the support 15 is erected. Then, the columns 15 are connected by the root studs 12 on the lower side and connected by handrails 16 at a position slightly above the eaves. Before and after this, hook 17 is hooked on girder 17,
The fitting 1 is connected to the hook 9 at an appropriate height, and is fastened to the column 2. After that, mounting bracket 1 and support 1
5 is connected with the beam 19, and the scaffolding plate 21 is fixed between the beams.

After temporarily setting the scaffold as described above, the rafters 24 are hit on the purlin 29 at regular intervals in the same manner as described above.
Then, a field board 25 is struck thereon, the ends of the rafters are trimmed, and the ends are hidden or the Hirokomai 26 is attached. After that, roofing is done and roof tiles are laid. After wiping the roof tiles on the second floor, removing the scaffolds for the second floor roof, hitting the roofing on the ground floor of the first floor, and then roofing.

According to the scaffold of this embodiment, since the mounting bracket is supported by the hook mounted on the girder or the beam, it does not slip down along the column, and the beam is supported at both ends by the mounting bracket and the column. Even if you work on a scaffold plate, fall down from the eaves and hit a handrail or strut and impact is applied, it is difficult to bend or deform as before, the mounting state is stable, the mounting bracket Should be fastened to the column by a fastening means consisting of a thumbscrew and backing plate, so that it does not move to the column, and it is necessary to screw in the bolt firmly as in the case of the conventional mounting bracket without a hook Because there is no mounting work, it is easy to install and does not require strength, use thumbscrews to fasten the mounting bracket to the pillar, or to fix the beam to the mounting part, and attach the hook bracket to the mounting bracket. Use the wing nut to secure If and it is possible to narrowing twisted by hand for that, to provide an advantage such as that can be performed narrowing twisted without the use of a tool, also for temporary scaffolding for the second floor roof,
Unlike a conventional scaffold, it is not necessary to build a scaffold from the first floor, and it is possible to temporarily install only a scaffold for a second floor on a first floor.

[0019]

According to the present invention, since the mounting bracket is connected to the hook which is supported by being hooked on the girder or the beam, it does not slip down along the column even when a load or impact load is applied. The metal fittings need only be fixed so that they do not move on the pillars,
Since it is not necessary to fix firmly and firmly, installation is easy and easy, and mounting strength is not required.Because the beam to which the scaffolding plate is passed is supported by mounting brackets and columns, work on the scaffolding plate, Even if it falls from the eaves, it is effective in that it is difficult to bend or deform.

[Brief description of the drawings]

FIG. 1 is a rear view of a mounting bracket mounted on a pillar.

FIG. 2 is a front view of a mounting bracket connected to a hook bracket.

FIG. 3 is a view showing a scaffold temporarily provided in a two-story wooden building.

[Explanation of symbols]

 1, Mounting bracket 2, Pillar 3, 6, Thumbscrews 4, Patch plate 5, Mounting part 7, Bolt 9, Hook bracket 10, Bolt through hole 11, Wing nut 12, Root Scattering 13. Scaffolding board 14. Base jack 15. Support column 16. Handrail 17. Girder 19. Beam 21. Clamp 22. Rubber band 24. Rafter 25 .. No ground board 26. Wide Small dance 29

Claims (1)

[Claims] 1. A hook-shaped hook which is supported by being hung on a beam or a girder on a column, a mounting which is fastened to the hook and sandwiches the column, a column which is attached to the mounting, and is attached to the column together with the mounting. A beam, which is inserted and supported slidably in a lateral direction on a supporting means provided on a mounting bracket, a column, a clamp for detachably connecting one end of the beam to the column, and a bridge. A scaffold for a wooden building, comprising a scaffold plate to be passed and a handrail for connecting columns.