JPS598889A - Mold frame in sash attaching method - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a formwork used in the sash tipping method. The satsushi tip construction method has recently been adopted at many construction sites as part of labor-saving efforts, but while it has achieved the objectives of shortening construction time and saving labor, it has resulted in a decline in quality and accuracy. .

Conventionally, the formwork used in the satsushi tipping construction method consists of a single formwork for the opening between the inner and outer walls of the building frame, and the opening frame is placed around the outer periphery of the formwork, so the hardened concrete IJ
- It is difficult to remove the formwork from the opening of the window, and the formwork is deformed, or in the case of wooden formwork, it is completely destroyed and removed. In the case of -, significant 11g modification is required only on-site. Moreover, there is a drawback that the concrete IJ-t is easily damaged when the formwork is removed, and a great deal of time is consumed in removing the formwork.

Special request for these! r7-. 397! ;! Invention No. i, "Formwork in the sash tip construction method," is an external formwork having a mold shape for the inner periphery of the opening on the external side of the opening of a concrete building, and an opening frame for the sash provided at the opening. The concrete formwork is divided into an internal formwork that supports the concrete formwork, and the external formwork and the internal formwork are each removable, and the external formwork and the internal formwork are separated and fastened so that they can be dismantled after concrete pouring. Formwork in advance construction method. Because the formwork for the opening is divided into inner and outer parts and joined together, the mold can be easily dismantled and damage to the concrete is reduced. The mold is lighter and easier to handle, reducing deformation and damage to the mold during disassembly. The internal formwork can be used regardless of the thickness of the concrete because the position where the internal formwork and external formwork are separated is the outside surface of the sash opening frame. And the formwork can be used repeatedly. Furthermore, based on the above-mentioned invention, many inventions and ideas have been made, such as one in which the concrete formwork of the opening is divided and fastened vertically vertically in the direction of projection to further facilitate demolding. ing.

However, in each of the above-mentioned inventions and ideas, the concrete formwork for the opening is first assembled by fastening it to an outer plate supported by external scaffolding or the like. However, if this is done, all of the concrete formwork must be brought inside, and it will be difficult to support the molds for the floorboards on the upper floor until after that. The work efficiency is not good because the outer plates of the concrete formwork that forms the outside of the building are first erected. Therefore, the conventional method of supporting the concrete formwork of the open frame by fastening it to the outside plate is accompanied by restrictions on the process.

However, it is difficult to use the conventional concrete formwork for the opening to support it from the indoor side. Immediately -1 Even if the outer plate covers the opening,
Since the mold will be removed eventually, there is no problem even if it gets damaged, so you can attach the concrete formwork as you like, but the inner board on the indoor side is a finishing base material that also serves as the concrete formwork, so cover the opening. I can't. Also, do not make it biased. Therefore, there is a problem in that the concrete formwork cannot be directly fixed to the indoor side as in the above-mentioned invention of the formwork in the sash tipping method.

As an example of the present invention, the internal formwork supporting the sash of the formwork is extended inward so that the concrete formwork of the opening used in the sash tipping method can be fixed to the inner board on the indoor side. A fitting portion is provided at the edge portion of the plate that abuts the open frame, and a mounting member for attaching to the inner plate is provided on the outside of the fitting portion.

Embodiments of the present invention will be described below with reference to the drawings.

Figure 1 is a front view of one window section of a concrete building as seen from the inside of the building under construction. FIG. 2 is an enlarged sectional view taken along the line AA of the opening shown in FIG. 1, and FIG. 3 is an enlarged sectional view taken along the line BB.

The internal formwork-2 is a rectangular rigid structure that is spaced apart by the thickness of the inclusions such as plywood 5 from the largest rectangular body that passes through the inside and outside directions of the opening frame 3 of the aluminum sash. A fitting part l fitted into the plywood 5 through the plywood 5 extends to the inside. The opening edge 7 of the inner board of the finishing ground on the indoor side, which also serves as a concrete formwork, is square, and the edge 7, the inner side of the opening frame 3, and the outer flange 9
After removing the mold, a picture frame is constructed and fitted in between. A mounting 7 flange // is formed as an outer flange at the inner extension end of the fitting part so as to abut against the inner plate 6, and the mounting flange
/ has an edge 7 of a heat insulating material (for example, a synthetic resin molded product) 7.2 (same surface as the edge 7 of the above-mentioned inner plate O), which is fastened along the entire circumference to the inside surface t of the sash and the inner plate 6. The fitting member /J is in contact with the opening frame J and has a shape that closes the gap between the opening frame J and the heat insulating material 7.2, and is fitted into the edge 7 arranged in a square shape.
is surrounded and welded.

The internal formwork is fitted into the fitting part formed by the edge 7, and the mounting flange // is brought into contact with the inner plate 6, and these are connected using the common holes of the mounting flange //, the inner plate 6, and the insulation material /. It is concluded.

The insulation material 7.2 has a sleeve /y recessed into it, and a cylindrical part that fits into the hole in the inner plate 6 on the plate 6 side /! Insert the hexagonal head nut /6 through the washer, apply the holding plate /71g to the insulation material /2, insert the bolt / groove into the sleeve /ll, and tighten the nut /A's cylindrical part /
Screw into S female thread, mounting flange //, inner plate 6,
The insulation material/co is tightened. In this sash tip construction method, the inner board 6 is first supported by a frame such as a stay between the floor and the facing wall.

As shown in Fig. 1, L-shaped brackets /q are welded to the inner circumference of the fitting part at the center of each side of the connecting part.
As shown in Figures 1 and 3, the cross beam y/
is fixed by bolt/nut: 1.2. Cross beam/
Alternatively, the cruciform intersecting parts may be connected by bolts or rigidly. The cross beams are for keeping the internal formwork rigid and for firmly fastening the external formwork, which will be explained later, to the internal formwork.

Since the internal formwork is as described above, you can attach the internal formwork to the inner board B and then fit the opening frame 3 into the fitting part of the internal formwork through the left side of the plywood. When the opening part of the inner plate B can pass through the opening frame 3 of the aluminum sash, the opening frame 3 may be fitted into the internal formwork in advance. Since the opening frame 3 of the aluminum sash abuts against the outer surface 10 of the fitting member/3, the position of the opening frame 3 is precisely sized in the direction from the inner panel 6 on the indoor side.

The external formwork 23 has an opening 0.241 for disassembly at the external end of the rectangular mold forming the external side of the opening 241, and is equipped with 7 lunges S around the opening 241, and the flange 2
Bolt nuts and 2 mounting holes are drilled in S, and a partition material 27 is provided at the inner end to be in contact with the outer surface of the opening frame 3 either directly or with a thin plywood or the like interposed (not shown), and the partition material core is It comes into contact with the inner flange, 2g, provided on the inner formwork,
The partition member 27 is fastened with bolt nuts 29 that pass through common bolt holes in the inner flange j[.

The lower part of the partitioning material 27 of the external formwork unit 3 is open [ ] and retreats in a stepped manner to the outside, avoiding the screen door rail 32 of the lower frame 3 / of the frame 3 to form a supporting wall 33 . The additional external formwork 3S, which has a part that will become the mold for the opening between the water return J4 (between the lower frame 3/ of the opening frame 3) comes into contact with the support wall 33, and the additional external formwork 33
By screwing the bolt 34 inserted into the bolt hole of the support wall 33 into the nut tl-O fixed to the attached external formwork 3S.
is fixed to the external formwork 23. The additional external formwork 3S is separated from the external formwork 23 to facilitate demolding.

A stay 37 is arranged inside the external mold frame part J.

One end of the stay 37 abuts against the cross beam 2/ and can be attached or detached using bolts and nuts 3g. The other end of the stay 37 is a flange for attaching the outer plate 3q, and is welded to the left side of the flange 2, and reinforcing material q/ is arranged, and reinforcement material /
Both ends are welded to the outer peripheral material of the external formwork 23 and the stay 37, respectively. The stay 37 and the reinforcing material are made of band steel or the like, but may be made of other shaped steel materials.

Although the external formwork 23 is not shown, generally, an upper formwork, an F formwork that extends outward to provide a water gradient, and a vertical formwork are assembled in four directions to facilitate demolding.

The concrete formwork of the present invention constructed in this manner has already been partially assembled, but when it is assembled as a whole, bolts and nuts are inserted into the cross beams from the openings of the inner plate A, which is fixedly arranged. Insert 2 into the internal formwork with 2/ attached, abut against the mounting 7 lange//inner plate 6, and fix with bolts/nuts/6, 1g. Next, the opening frame 3 is made of plywood S
Insert it into the fitting part q of the internal formwork via.

Then, the additional external formwork 3S is fitted to the external formwork 3, and the external formwork is connected by screwing the bolt 3A into the nut θ, the partition material 23, 27, and the 7 langes of the internal formwork 2,
When g is brought into contact with each other, the stay 37 and the cross beam 2/ are also brought into contact.

And Bolt Nut 29. ．． 3g, the inner formwork 3 and the outer formwork 2J are fastened together. Then, attach the outer plate 3q to the left side of the outer formwork and flange 2J using bolts and nuts 2B. It is expedient to attach the cut-out profile 47.2 to the external formwork 3 beforehand for the internal cut.

Concrete is poured vertically. Since the internal formwork 23 is fixed to the internal formwork 2 and the internal formwork 23 is fixed to the internal formwork 2, the support is based on the indoor side, and the weight of the formwork itself and the opening frame 3 are initially It is supported by the inner plate O. Between inner board 6 and outer board 39? Separate stay bolt (
At the step of joining at intervals (not shown), they support each other as a whole.

To disassemble the concrete formwork, remove the bolts and nuts 26, remove the outer plate 3q, and remove the bolts 36.

Remove Bolt Naratoko 9.3g. Then, if the internal mold is divided into upper and lower vertical formwork in the direction of projection, remove the bolts (2.2) and the cross beam (2.2). If the internal formwork is integral, it is a cross beam, and 2/ is a fixed beam. Then, unscrew the nut/6 and remove it. Pull it out to the outside, and finally remove the attached external formwork 3S.Plug the hole in the inner plate O into which the nut/A was inserted.

FIG. 9 and FIG. 5 show other embodiments of the present invention.
The figure is an enlarged sectional view taken along line A-A in Figure 1, and Figure S is an enlarged cross-sectional view taken along line B-A in Figure 1.
13 is an enlarged sectional view. Only the parts that are different from the first embodiment will be described. The fitting part of the inner formwork does not extend to the same plane as the inner surface of the inner plate B, but is bent toward the edge 7 to form the surrounding edge material 1.
Form I41. The end edge 7, the inner surface of the inner plate B following the edge 7, the 7 lange //1 that touches the inner surface g of the opening frame 3 and surrounds the inner formwork, the fitting member /31, the mold material part. A mounting type steel material S having an outer surface 10' and a surrounding edge material 1It
The ends of I and I are welded to the mating member. Other than the above, this embodiment is the same as the first embodiment.

16, the present invention is based on the Narashi tipping construction method ((Since a mounting member is provided for the inner plate of the open part of the formwork to be used, the installation work outside the mold can be carried out by first standing the inner plate. Since the inner board is supported on the floor of that floor and the formwork is fixed to the inner board, the inner board side becomes the reference and the sash opening frame can be placed at a certain position +i in the expected direction. Since the internal formwork fits into the "L" part between the inner plates, the opening frame can be placed accurately.The internal formwork can be constant regardless of the wall thickness. It is firmly supported by fastening to the inner plate and fitting the inner formwork into the opening of the inner ifllll plate.The inner periphery of the fitting part of the inner formwork is connected with a cross beam, and the cross beam is connected to the outer formwork. Since it is fixed to the top and connected to the stay, the formwork divided into the inside and outside is firmly connected, and there is little deformation of the formwork against the outside plate 7h-t and concrete pouring pressure.Since the cross beam was provided, When inserting the inner formwork into the opening of the inner plate, it can be held by hand for positioning, allowing safe work.

[Brief explanation of drawings]

The drawings all show embodiments of the present invention, and FIG. 1 is a front view seen from the inside of the opening, FIG. 4 is an enlarged sectional view taken along line A-A in FIG. 1, and FIG. 13-B enlarged sectional view, No. 9
3 show another embodiment of the present invention, FIG. 9 is an enlarged sectional view taken along the line AA in FIG. 1, and FIG. 5 is an enlarged sectional view taken along the line BB in FIG. 1. /... Opening a... Internal formwork 3... Opening frame q...
Fitting part 5...Plywood 6...Inner plate 7...Edge g...
Inner opening frame 11111 9... Outer flange 10.0
Outer surface //... Mounting flange / Yu... Insulation material /3
・・Mating part /4／・・Sleeve /S・・Cylindrical part /6・・Nut /7・・Press plate it・・Bolt nut/bracket KO/self・cross beam, 2−＠・bolt nut), 2.7@・External formwork, 24'...laC
] 2j-・flange, 26ψ・bolt nut 2
7. Partition material Cog...Inner flange, 2q--Bolt nut 3/...F frame of open ['' frame, 7.1-...Screen door rail, 3J-Middle support wall 347...Water return 3k... (Additional external) (Frame 3 B...Bolt 37φ・Stay, 3
g-・Bolt nut 39・・Outside plate G・・・Nut I
I/... Reinforcement material, Chamfered material, qg... Surrounding edge material, tlS... Mounting type@ri. Patent applicant Fujisash Co., Ltd.

Claims (1)

[Claims] 1. The part that supports the aluminum sash opening frame on the inside side of the concrete formwork for the opening of a concrete building is extended inward, and the extended part is attached to the inside plate of the internal finishing base material that also serves as the concrete formwork. A formwork for use in the sash tipping construction method, characterized by being equipped with a mounting member.