JPS5940514Y2 - Concrete formwork joint fittings - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a coupling fitting for concrete forms used in constructing concrete structures.

A concrete structure is constructed by pouring concrete into a formwork assembled by connecting concrete formwork with bolts and separators 4.

In the above-mentioned formwork, forming parts such as slabs, slabs and beams, slabs and walls, etc. are formed by supporting formwork arranged in a plane with buffing material, and forming parts such as slabs, slabs and beams, and slabs and walls. They are meant to be connected to each other.

Conventional methods for connecting two-dimensional formwork to each other include bolting and connecting the formwork on both sides by connecting plates and driving nails, but the former bolt connection requires assembly. However, there are problems in that it requires a lot of time for dismantling, is expensive, and cannot be used to join plywood forms.

In addition, the use of connecting plates and nails is uneconomical and cannot be used in steel plate formwork because the formwork cannot be reused many times due to damage after disassembly and use.

Further, each method is inconvenient in that only the formworks can be connected to each other, and another metal fitting must be used for fixing to the buffing material.

This invention was made to solve the above-mentioned problems and inconveniences, and the purpose is to provide a connecting fitting that can simultaneously connect the formwork to each other and fix it to the buffing material.

Hereinafter, embodiments of this invention will be described based on the accompanying drawings.

Figure 1 shows the slabs, beams, and columns of the formwork used to construct a concrete structure.Beam frame material 1 is assembled with a U-shaped cross section, and column frame material 2 is assembled with a cylindrical cross section. The slab portion 3 is assembled so as to communicate with the frame material 1, and the formwork 4,
4 are arranged in a plane.

The formworks 4 forming the slab portion 3 are supported at their lower surfaces by buffing material 5, pipe supports, etc., and are arranged at approximately the same height as the formwork 6 in the beam frame material 1.

A through hole I is provided at each corner and an intermediate portion of the periphery of the formworks 4, 4, and the coupling fitting 11 of this invention is provided with the through hole 7.
The formworks 4 and 4 are connected to each other using the IJ.

In the case of the first embodiment shown in FIGS. 2 to 5, the connecting fittings 11 connect the corner portions of the four formworks 4, and
This joint portion is fixed to the two buffing materials 5 and 3.

The above-mentioned coupling fitting 11 is a pair of fitting fittings 12 and 12' formed in a downward U-shape so as to be Mf on the upper part of the buffing material 5. Tool 1
2, 12' are arranged in two sets on both sides at the hinge part 13,
A pair of presser plates 15 and 15', which are also connected by the hinge part 14 so as to be foldable in half, are arranged on the upper part of the fitting tools 12 and 12', and the hinge parts 13 and 14 corresponding to the upper and lower parts are connected by the connecting member 16. It is constructed by connecting.

The holding plates 15 and 15' are formed to have a wide width equal to the upper surface spacing of the fittings 12 arranged on both sides, and are connected to the formwork 4 in a parallel state between the corresponding surfaces of the fittings 12 and 12' by means of the connecting member 16. It is designed to form an interval that holds the

Protrusions 17 and 18 are provided on the upper surface of each fitting tool 12.12' and the upper and lower corresponding surfaces of the holding plate 15.15' to fit into the through holes γ of the clamped formwork 4Q.

As shown in FIG. 3, the pair of fitting tools 12 and 12' are formed to have different widths so that they fit into each other when folded, so that the hinge parts 13 and 14 and the connecting member The universal joint structure of 16 allows the holding plates 15 and 15' to be folded in half and stacked on the fitting 12, so that the entire coupling fitting 11 becomes low in volume, making it convenient for storage and the like.

In addition, the second example shown in FIG. 6 is for joining the middle of the formworks 4, 4 and fixing them into a single buffing material 5,
It has the same structure as one half of the coupling fitting 11 shown in the first example.

In the past, the connection of the formworks 4, 4 and the formwork 6 of the beam frame material 1 was performed by the first
This is done using another coupling fitting 19 as shown in the figure.

The coupling fittings of this invention have the above-mentioned configuration, and when assembling a form using the beam frame material 1, column frame material 2, and slab part 3, together with the formwork 4, 4ff1 of the slab part 3, The connecting portion is fixed to the barrier material 5 that supports this formwork.

To perform the formwork 4, 4Q connection, a pair of fittings 12.1
2' onto the same backing material 5, press plate 15.15
'ffl Lay the formworks 4, 4 on the backing material 5 in an upright state, and fit the corners and intermediate parts of the formworks 4, 4 with the fitting tools 12, 12'.
, and fit each through hole γ into the protrusion 1γ.

After this, the holding plates 15 and 15' are laid down on both sides] and the formwork 4
, 4, the protrusion 18 fits into the through hole I,
As shown in FIGS. 2 to 4, the adjacent formworks 4 and 4 and the buffing material 5 are connected so as not to move in a plane.

The formwork assembled as described above is formwork 4.

A gap 20 corresponding to the diameter of the circumferential edge bonding portion 13 of No. 4 is created, and this gap 20 is closed with tape or the like that is pasted from the upper surface side.

When concrete is poured into the assembled formwork and the formwork is dismantled after the concrete solidifies, a concrete structure is completed, and the coupling fittings 11 can be reused if they are peeled off from the concrete surface.

As described above, according to this invention, the fitting tool for the buffing material, the holding plate placed above it, and the connecting member O are connected through the formwork clamping interval, and the corresponding surfaces of the fitting tool and the holding plate are connected. Protrusions that fit into the through holes of the formwork are provided on both sides of the connecting member, and one or both of the fitting tool and the holding plate can be folded in half at the joint with the connecting member. This joint part can be fixed to the buff material at the same time as the joint is joined, and the assembly and disassembly work of the formwork can be carried out efficiently.

In addition, since the connections are made using the through holes in the formwork,
It is economical because it can be connected to either plywood or steel formwork, and can be peeled off from the concrete surface and reused.

Furthermore, since one or both of the fitting tool and the holding plate can be folded in half, the projection can be easily fitted into the formwork through-hole, and the entire structure can be folded to reduce its bulk, making it convenient for storage.

[Brief explanation of drawings]

Fig. 1 is a plan view of a formwork assembled using the coupling fittings of this invention, Fig. 2 is an enlarged flat cylindrical view of the main parts of the same, Fig. 3 is a vertical cross-sectional view of the same, and Fig. 4 is a plan view of the same. A vertical side view, FIG. 5 is an exploded perspective view, and FIG. 6 is a flat view showing a second example of the same. 3...Slab part, 4...Formwork, 5...
...Buffing material, T...Through hole, 11...Joining metal fitting, 12,12'...Fitting tool, 13,14
...Binge part, 15,15'...Press plate,
16... Connection member, 17, 18... Protrusion.

Claims (1)

[Scope of utility model registration request] A fitting tool that fits externally on the buffing material, a presser plate placed on the top of the fitting tool, and the center portions of the fitting tool and the presser plate are connected through a formwork clamping interval between the upper and lower corresponding surfaces. and protrusions provided on both sides of the corresponding surfaces of the fitting tool and the holding plate to sandwich the connecting member. A concrete formwork joining fitting characterized by being able to be folded in two at the connecting part.