JP4440856B2 - Construction method of gap prevention metal fittings and frame scaffold for cloth frame with board - Google Patents

Description

  The present invention relates to a gap preventing metal fitting for a cloth frame with a plate that restricts a gap between cloth plates of a cloth frame in a frame scaffold so as not to exceed a specified value, and a construction method of a frame scaffold using the same.

  As shown in FIG. 6, when the gap a between the cloth boards 3a becomes wide due to vibrations caused by the movement of the worker, the cloth scaffolding of the framework scaffold may fall down from there, or the operator's feet Since there is a danger of being pinched and fouled, it is necessary to regulate (30 mm or less) so as not to spread beyond a predetermined gap.

  Therefore, conventionally, as Conventional Example 1, a method of binding the cloth plates 3a of the cloth frame 3 with the wire 4 is used. In this case, the board-attached cloth frame 3 is installed on the building frame 2 (see FIG. 2), the wire 4 cut to the required length from the lower stage of the cloth frame 3 is prepared, and the claw portion 3b of the cloth board 3a is attached. The wire 4 is bundled using a Shino (a sharp tool for binding wire) or the like.

In addition, as a conventional example 2, there is known a correction metal object provided with a tension part of bolts and screws attached to the side face by hooking a hook for preventing the correction metal object from dropping and moving to the folded part between the cloth plates ( Patent Document 1).
JP 2003-120021 A

However, in the method using the number wire in the conventional example 1, it takes time and effort to wind the number wire 4 around the claw portion 3b and bind it so that it does not protrude from the lower surface of the cloth plate so as not to disturb the operator. Furthermore, after the construction of the cloth board 3a, the wire 4 is fastened at the lower stage of the cloth board 3a, which is a separate work, so the workability is poor. Moreover, since the said number wire 4 is cut | disconnected with a cutter at the time of a disassembly, it will take time and the shape of the said number wire 4 will collapse and it will become difficult to remove. Further, when the cut wire 4 is dropped, the number of protrusions increases, so that the degree of danger increases and it cannot be reused, resulting in an increase in industrial waste.
In the conventional example 2, since it is attached with bolts and screws, it takes time for fastening and also takes time for disassembly, resulting in poor workability. Furthermore, the bolts may be loosened due to vibration or the like, resulting in poor maintainability. The gap prevention metal fitting for board | substrates cloth frames which concerns on this invention is proposed in order to solve such a subject.

The gist of the present invention for solving the above-described problems of the gap preventing metal fittings for a cloth frame with a plate according to the present invention is to regulate the gap of the cloth board provided in the cloth frame of the frame scaffold so that it does not widen due to lateral displacement. In order to perform a series of operations from the step in the laying operation of the cloth board, the metal hardware is made into a gate shape, and both ends of the leg portions having the elasticity of the gate shape are outside in the plane of the hardware. A bending guide portion having a curved surface is formed , and the width between the leg portions of the gate-type is such that the cloth plate laying claw adjacent in the left-right direction and the cloth plate laying claw adjacent in the longitudinal direction The jaw portion of the bending guide portion that bends the end portion of the leg portion outward from the linear portion is set to a width corresponding to the thickness of the laying claw. It is bent inward so as to be caught by the lower corner.

The gist of the construction method of the framework scaffold according to the present invention is that, in the construction method of the framework scaffold, after constructing the building frame, the cloth board is continuously laid in the front-rear direction on the building frame, and then the construction is performed. A frame scaffolding is constructed by sandwiching the gap prevention bracket for a cloth frame according to the present invention from the step of the cloth board and sandwiching the nail for the construction of the cloth board adjacent in the left-right direction perpendicular to the front-rear direction. However, it can be removed from the top of the cloth plate even in the dismantling work of the frame scaffold.

According to the gap preventing metal fittings for the cloth frame with a plate according to the present invention, the claw portions of the adjacent cloth boards are narrowed by the gate-shaped metal fittings, so that the gap can be made a constant width equal to or less than the regulation value and at low cost. Can be created. Further, when the metal fitting is sandwiched between the claw portions of the cloth plate, there is a bent guide portion that is bent outward. As a result, the worker can smoothly perform the fitting operation of the metal fitting in a short time.
Furthermore, it can be reused many times, reducing running costs and contributing to CO ₂ reduction as a recycled material.

  By having the jaw part of the leg part, it is not caught by the lower corner part of the claw part, and this metal fitting does not fall naturally. Since the bending guide portion has a curved surface for ensuring safety, there is no danger even if the bending guide portion falls or collides with an operator, for example.

  According to the construction method of the frame scaffold according to the present invention, the gap prevention metal fitting for the board-attached frame can be immediately straddled on the nail for laying the cloth board after the board-attached frame is laid on the building frame. Therefore, the work process is continued in a series and does not become a separate process, so that the work efficiency of the assembly work of the frame scaffold is improved. Conversely, the work efficiency is also improved in the dismantling work of the scaffold.

  As shown in FIGS. 1 to 2 (A) and 2 (B), a gap preventing metal fitting 1 for a board-attached cloth frame according to the present invention has a cloth frame 3 of a frame scaffold 2 (see FIG. 2 (A) for each member name). The gap a of the cloth plate 3a provided on the side is restricted so as not to widen due to lateral displacement.

  For example, the metal fitting 1 has a gate shape made of a metal hardware such as a piano wire having a wire diameter of 4φ. Then, both end portions of the leg-shaped elastic leg portions 1a and 1b are bent outward in the plane of the hardware to form bending guide portions 1c and 1d having a curved surface b. The member may be a round bar or a square member.

  As shown in FIGS. 3 and 5, the width c between the gate-shaped legs 1a and 1b is substantially equivalent to the thickness of the neck 3d of the claw 3b for the installation on the cloth plate 3a. It is set to the width that sandwiches. In this embodiment, the width c is 40 mm. In this case, the claw portion 3b at the left and right ends is a claw portion of the cloth plate 3a adjacent to the side (left and right direction), and the claw portion 3b at the center is a claw portion of the cloth plate 3a in the longitudinal direction.

  The jaw portions 1e of the bending guide portions 1c and 1d that bend the end portions of the leg portions 1a and 1b outward from the linear portions are inward so as to be caught by the lower corner portions 3c of the installation claws 3b that contact the linear portions. It is bent. Thereby, the width | variety d of the entrance side is about 34 mm, for example, and is narrower than the said width | variety c.

  In addition, when the type of the cloth board 3a is old and new, the attachment position of the claw portion 3b is different, and accordingly, a plurality of types such as those having the larger widths c and d are prepared according to the combination. By such a jaw portion 1e, the board-attached cloth frame gap preventing metal fitting 1 does not naturally fall due to its catching property, and can be removed with a relatively small force even when it is removed from the claw portion 3b. .

  The ends of the bending guide portions 1c and 1d have an opening 1f having a dimension e that is at least twice the wire diameter. This opening 1f is intended to prevent the bending guide portions 1c and 1d of the other gap preventing metal fittings 1 for the cloth frame with a plate from being entangled with each other.

  Therefore, as shown in FIG. 4, the shape of the bending guide portion is wide so that the leg portion 1e of the leg portions 1a and 1b is bent into a substantially "<" shape and the end portion has a curved surface b. The opening 1f may be used. This curved surface b is intended to alleviate the impact when the metal fitting 1 is dropped, and to be safe even in the collision of the operator's head or the like. It is provided so that it can be relaxed and smoothly inserted.

  The board-attached cloth frame gap preventing metal fitting 1 is provided with a color different from the color of the claw portion 3b of the cloth board 3a on the whole or a part of the metal fitting. This can be done, for example, by painting the entire bracket in yellow, making it a zebra pattern in black and yellow, or in other words, if the worker stands on the cloth board and is easy to distinguish Good. Therefore, in particular, color is applied to the upper part and the side part of the gate shape in the gap preventing metal fitting 1 for the cloth frame with a plate.

  As shown in FIG. 3 and FIG. 5, the method for using the gap preventing metal fitting 1 for the board-equipped cloth frame formed in this way is the claw of the cloth boards 3 a and 3 a adjacent in the left-right direction after the building frame is constructed. It is inserted across the neck 3d of the part 3b. This insertion is done by the operator's hand and pushed from top to bottom. This work time is a short time of only about 1 to 3 seconds.

  And the insertion operation | work of the said gap prevention metal fitting 1 for board | substrates cloth frames can be performed by a series of work after the installation work of the cloth board 3a. On the other hand, since the number 4 and the like in the conventional example are separate operations, the assembly period of the frame scaffold is greatly shortened by the gap preventing metal fittings 1 for the cloth frame with a plate of the present invention. is there.

Furthermore, even in the dismantling operation, it can be easily removed manually from the top of the cloth plate 3a. Therefore, the construction period of the dismantling is significantly shortened compared to the case of the wire 4 or the like. Moreover, the fitted with fabric frame for clearance prevention fitting 1, the running cost is reusable is reduced, thereby contributing to the CO ₂ reduction as recycled material.

It is a front view of the clearance gap prevention metal fitting 1 for board | substrates cloth frames which concerns on this invention. It is the perspective view (A) of the frame combination place 2 which uses the clearance gap prevention metal fitting 1 for board | substrate cloth frames of the same invention, and the perspective view (B) of the whole scaffold. It is sectional drawing of the use condition of the clearance gap prevention metal fitting 1 for board | substrates cloth frames which concerns on the same invention. It is a partial front view which shows the modification of the edge part of the clearance gap prevention metal fitting 1 for the cloth frames with a board. It is explanatory drawing which shows the use condition of the clearance gap prevention metal fitting 1 for the board-attached cloth frames. It is explanatory drawing which shows a mode in the case of fastening the cloth board 3a with the number wire 4 based on a prior art example.

Explanation of symbols

1 Clearance prevention bracket for cloth frame with plate,
1a, 1b leg, 1c, 1d bending guide part 1e jaw part, 1f opening part,
2 framework scaffolding, 2a pipe,
3 cloth frame, 3a cloth board,
3b claw part, 3c lower corner part,
3d neck,
Line 4.

Claims (2)

The gap between the cloth plates provided in the cloth frame of the frame scaffolding is regulated so that it does not widen due to lateral displacement, and the metal hardware is made into a gate shape so that a series of operations can be performed from the top in the laying work of the cloth plates. Te, the bent guide portion having a curved surface is bent outward in the portal elastic within a plane both ends of the hardware of the legs having a are formed, the width between the legs of the gantry is left The width is set so as to sandwich the thickness corresponding to the thickness of the nail for the cloth plate adjacent to the direction and the nail for the cloth plate adjacent to the longitudinal direction, and the end of the leg portion is a straight portion. The jaw part of the bending guide part to be bent outward is bent inward so as to be caught by the lower corner part of the laying claw in contact with the linear part,
The gap prevention metal fitting for cloth frames with a board characterized by. In the construction method of the frame scaffolding, after building the building frame, the cloth board is continuously laid in the front-rear direction on the building frame and then laid, and then the cloth that is installed and adjacent in the left-right direction perpendicular to the front-rear direction A frame scaffolding is constructed by straddling and sandwiching the gap preventing metal fittings for the board-equipped cloth frame according to claim 1 from the step of the cloth board, and the frame scaffolding is disassembled. Can be removed from the stage,
Construction method of a framework scaffold characterized by

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