JPH0643237Y2 - Formwork for legal form - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a legal formwork.

[0002]

2. Description of the Related Art A conventional formwork for a formwork is composed of belt nets facing each other and spacers in the shape of a cross girder that foldably connect the nets. Further, the formwork for the legal form is used for construction of the legal form by deploying it on the slope and laying it, then arranging reinforcing bars between the strips and spraying concrete.

[0003]

[Problems to be Solved by the Present Invention] In the conventional bar arrangement work for the formwork, due to its structure, one rebar must be inserted from one side of the formwork. The work of transporting the reinforcing bars on the slope with bad scaffolding and inserting them one by one into the form requires a great deal of effort, and proposals for improvement techniques are desired.

[0004]

[Purpose of the Invention] An object of the present invention is to provide a formwork for a legal framework which can be easily arranged and has excellent workability.

[0005]

[Means for Solving the Problems] That is, the present invention comprises two opposing webs and a spacer connecting the webs in a foldable manner, the spacers having an inverted gate shape, and U A formwork for a legal form, characterized in that a hooking portion for hooking a letter-shaped lower stirrup streak is provided.

[0006]

[Configuration of the Invention] The invention will be described with reference to FIGS. 1 and 4.

<A> Overall Configuration As shown in FIG. 1, the form A of the present invention is constructed by a spacer 1 supporting two strips 2 which are erected opposite to each other. Since the spacer 1 and the web 2 are movably connected to each other, the left and right webs 2 can be folded.

<B> Spacer As shown in FIG. 4, the spacer 1 is constructed so that the lower stirrup muscle 3 can be attached thereto. Spacer 1
Has a total of four connecting portions 13, one on each of the upper, lower, left and right sides.
Connected with. When assembling the form A, the spacer 1 can be fitted with the lower stirrup streak 3 in the upper hooking portion 11 and the lower hooking portion 12 so that the spacer 1 can be hooked. The upper and lower hook portions 11 and 12 are provided in consideration of the outer diameter of the lower stirrup bar 3 in advance, so that the lower stirrup bar 3 can be easily fitted into the spacer 1. The upper hook portion 11 and the lower hook portion 12 are connected by a vertical line 14. The upper hooking portion 11 and the connecting portion 13 are connected by the upper connecting portion 15. Further, the lower hook portion 12 is fixed on a lower connecting wire 16 that connects the lower left and right connecting portions 13.

[0009]

[Operation] The method of constructing the method frame will be described. <a> Installation of formwork Open the convoluted formwork A and lay it on the slope.

<B> Bar Arrangement First, the lower stirrup bar 3 is fitted into the lower hook portion 12 and the upper hook portion 11 of the spacer 1. Next, as shown in FIG. 2, the required number of rebars 5 are placed on the lower stirrup bar 3. At this time, since the lower stirrup bar 3 is arranged so as to open upward, it is not necessary to insert the reinforcing bar 5 from the side. Finally, the upper stirrup muscle 4 is arranged as shown in FIG.

<C> Assembling Form Form As shown in FIG. 3, a spacer A, a lower stirrup streak 3, an upper stirrup streak 4 and a reinforcing bar 5 are bound by binding wires to assemble a form A.

<D> Spraying of concrete Then, concrete or mortar is sprayed onto the form A for finishing.

[0013]

Since the present invention has been described above, the following effects can be obtained. <A> When the mold is assembled, since the spacer has a hooking function, the temporary stirrup of the lower stirrup can be easily performed.

<B> When the spacer is in the shape of a cross, it is necessary to insert the center of the spacer to arrange the reinforcing bar 5, which requires a great deal of labor. In the present invention, since the upper part of the formwork is open, the reinforcing bar can be dropped from above the formwork to facilitate the rebar arrangement.

<C> According to the present invention, since the mold and the lower stirrup streak are separated from each other, they are convenient to carry and handle.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a side sectional view of the present invention when arranging a bar.

FIG. 3 is a side sectional view of a legal frame.

FIG. 4 is a perspective view of a spacer of the present invention.

Claims (1)

[Scope of utility model registration request] 1. A pair of opposing webs and a spacer connecting the webs in a foldable manner, the spacers having an inverted gate shape and retaining a U-shaped lower stirrup streak. A formwork for a legal form, characterized by having a hooking part.