JPH06101334A - Concrete foam - Google Patents

Abstract

PURPOSE:To facilitate joining between mutual concrete forms, and enable joining with a metallic form by fixing metallic joining connecting members to the four side edge parts of a wooden concrete form body. CONSTITUTION:Metallic joining connecting members 3 are fixed to the four side edge parts 2a, 2c and 2d of a wooden panel 2. Here, the joining connecting members 3 are formed in an L shape cross section by means of a panel fixing part 4 being fixed by coming into contact with the wooden panel 2 and a connecting part 5 formed vertically in the panel fixing part 4. Plural connecting holes 8 are also formed in the connecting part 5, and these are joined together by means of adjacent concrete forms, U clips, bolts and the like through the connecting holes 8. Thereby, concrete form setting workability and peeling workability can be improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete formwork used for forming concrete into a predetermined shape.

[0002]

2. Description of the Related Art A concrete formwork is used to form a concrete structure and is framed in accordance with the shape of the concrete structure. Fresh concrete is allowed to flow into the framed concrete formwork and solidified. Let
After the concrete has set, the concrete form is removed to form a concrete building.

As this concrete formwork, there are known ones that usually use wooden panels (formwork) and ones made of metal, especially iron, which are advantageous for adapting to curved surfaces.

[0004]

However, when the conventional wooden formwork is used, since it is difficult to connect it to the metal formwork, it can only be used in a part which is normally composed only of a flat surface. There is a problem in that reuse may be difficult because the edge of the wooden form may be damaged when the form is peeled off from the periphery because the force may be applied to the end of the form.

Further, when a metal mold is used, there is a problem that the mold itself has a heavy weight, resulting in poor workability and an increase in manufacturing cost. .

Therefore, the present invention is to provide a wooden concrete formwork which facilitates connection between concrete formworks and enables connection with a metal formwork.

[0007]

Therefore, the present invention is
This is because the connection members for connection were fixed to the four edges of the wooden concrete form body.

[0008]

Therefore, in the present invention, since the connecting members are fixed to the four edges of the wooden concrete formwork, the connecting members make it easy to connect the concrete formwork to each other, and the connecting members are made of metal. The above-mentioned problems can be achieved by enabling connection with the formwork.

[0009]

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

The concrete formwork 1 shown in FIG.
Is the four edges 2a, 2b, 2c, 2d of the wooden panel 2.
It is formed by fixing a metal coupling member 3 to the.

As shown in FIG. 2, the connecting member 3 for connection is composed of a panel fixing portion 4 that is fixed to abut the wooden panel 2 and a connecting portion 5 that is formed perpendicularly to the panel fixing portion 4. It has an L-shaped cross section. Further, the connecting member 3 for connection is provided with a support piece 6 for mechanically assisting the panel fixing portion 4 and the connecting portion 5, and through a plurality of screw holes formed in the panel fixing portion 4. The wood screws 7 fix the wood panel 2.

A plurality of connecting holes 8 are formed in the connecting portion 5 of the connecting member 3 for connecting.
It can be connected to the concrete formwork that is adjacent via the U-clip and bolts.

In the concrete formwork 1 having the above structure,
As shown in FIG. 3, the concrete formwork 1 according to the present invention is brought into contact with the connecting portion 4 and is locked by, for example, a U-clip 20 to be connected to form a frame. In a place where it is considered better to use a metal formwork, the metal formwork 10 is used to connect and join the joining part 10a of the metal formwork 10 and the joining part 5 of the concrete formwork 1. As a result, it can cope with various conditions of the concrete framework.

When connecting the concrete formwork 1 to each other, as shown in FIG. 4, the connecting portions 5 of the connecting members 3 for connecting each other are brought into contact with each other, and the U clips 20 are inserted into the connecting holes 8 and 8.
The fulcrum 20a of the U-clip 20
By means of this, the joint portions 8, 8 are sandwiched and fixed. In this embodiment, the method of connecting with the U-clip 20 has been described, but a method of connecting with a bolt and a nut may be used, and the connecting method is not limited.

Further, as shown in FIG. 5, the connection between the metal form 10 and the concrete form 1 is performed by bringing the connecting part 10a of the metal form and the connecting part 5 of the concrete form 1 into contact with each other. The connecting hole 10b formed in the connecting portion 10a and the connecting portion 5
The connecting holes 8 are aligned, the fulcrum 20 of the U clip 20 is inserted through the connecting holes 10b and 8, and the connecting portions 10a and 4 are clamped and fixed by the engaging portion 20b. is there.

Further, as shown in FIGS. 6 and 7, when the concrete formworks 1 are mutually connected or the concrete formwork 1 and the metal formwork 10 are vertically connected, a connecting member 40 is interposed between them. It is possible to combine them.

After the concrete framework is completed by combining the above-mentioned various connections, ready-mixed concrete is poured into the concrete framework, and after the concrete is solidified, the concrete framework is peeled off to complete a concrete building. When the concrete frame is peeled off, the four edge portions (peripheral edge portions) 2a to 2d of the concrete formwork 1 are the connecting members 3 for connection.
It is reinforced by so that it can be easily peeled off and reused even though it is made of wood.

[0018]

As described above, according to the present invention, by connecting the connecting members for connection to the four edges of the wooden concrete formwork, it is possible to connect the metal formwork. Since it is made of wood, which is lighter in weight than the metal formwork, the work becomes easier and the workability of the concrete formwork can be improved. Further, since the connecting connecting members can strengthen the four edges of the wooden concrete formwork, the drawbacks of the wooden concrete formwork can be eliminated and the wooden concrete formwork can be used several times.

[Brief description of drawings]

FIG. 1 is a perspective view of a concrete formwork of an embodiment according to the present invention.

FIG. 2 is a partially enlarged perspective view showing a fixed portion of a coupling connecting member according to an embodiment of the present invention.

FIG. 3 is an explanatory view showing an example of assembling the concrete formwork according to the present invention.

FIG. 4 is an explanatory cross-sectional view showing the connection between concrete forms.

FIG. 5 is an explanatory sectional view showing a connection between a concrete formwork and a metal formwork.

FIG. 6 is an explanatory cross-sectional view when concrete formworks are vertically connected to each other.

FIG. 7 is an explanatory cross-sectional view when the concrete formwork and the metal formwork are vertically connected.

[Explanation of symbols]

 1 Concrete formwork 2 Wooden panel 3 Connection member for connection 4 Panel fixing part 5 Connection part

Claims (1)

[Claims] 1. A concrete formwork, characterized in that a connecting member for connection is fixed to four edges of a wooden formwork body.