JP2004027513A - Concrete form support tool - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a concrete form support tool usable even when a width interval of a reinforcement structure becomes narrow when constructing a reinforced concrete foundation. <P>SOLUTION: This concrete form support tool 1 has support legs 3 and 3 on a bottom plate 2, and has a form placing part 5 for placing a concrete form on the support legs 3 and 3. The form placing part 5 is formed as a separate body so as to be attachable-detachable to the support legs 3 and 3. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention provides a method for constructing a base portion and a rising portion, which are the foundation of reinforced concrete, on a reference surface, by supporting a reinforcing bar buried in the basic concrete at a predetermined position from the foundation surface and forming a rising portion. And a support for supporting the concrete formwork.
[0002]
[Prior art]
The conventional concrete form support has a structure shown in FIG. In the concrete form support 1a, support legs 3, 3 are integrally welded to the bottom plate 2, and a horizontal bar 4 is stretched between the support legs 3, 3.
[0003]
Then, at the time of construction, as shown in FIG. 6, gravel or the like 8 is laid on the ground 9 and crushed stones are rolled to obtain a predetermined level, and then the above-described concrete form support 1a is mounted thereon at a predetermined interval. Place it.
[0004]
Next, the rebar structure 12 assembled in advance is placed at the position where the concrete is to be cast while placing it on the horizontal bar 4 of the concrete form support 1a. The concrete formwork 10a, 10b is placed on the placement part of the support leg 3, and the space holder 11 for regulating the space between the inner frame 10a and the outer frame 10b is attached.
[0005]
Finally, concrete is cast, and the reinforced concrete foundation 15 in which the base portion 13 and the rising portion 14 are integrated is completed.
[0006]
[Problems to be solved by the invention]
However, as shown in FIG. 7, the reinforcing bar structure 12 is one which is previously welded and assembled at a factory and transported to a construction site for installation, and the reinforcing bars are assembled at intervals corresponding to the construction site. Things. Therefore, when the interval A between the reinforcing bars is smaller than the length obtained by subtracting the length D from the length C of the concrete form support 1a (see FIG. 5), the situation where the concrete form support cannot be used has occurred. .
[0007]
In view of the above points, an object of the present invention is to provide a concrete form support which can be used even when the width interval of a reinforced structure is reduced when constructing a reinforced concrete foundation.
[0008]
[Means for Solving the Problems]
The invention according to claim 1 is a concrete form support having a support leg on a bottom plate and a form placing part for placing a concrete form on the support leg, wherein the form placing part is a support leg. It is characterized in that it is separate so that it can be attached to and detached from.
[0009]
The invention according to claim 2 is characterized in that it has a locking means for integrating the form mounting portion and both or either of the support legs with each other.
[0010]
The invention according to claim 3 is characterized in that the locking means is provided with a retaining means.
[0011]
The invention according to claim 4 is characterized in that the support leg is provided with an inclined portion extending obliquely inward from the bottom plate so as to avoid contact with a reinforcing material for reinforcing concrete.
[0012]
The invention according to claim 5 is characterized in that a form placing portion for placing a concrete form has an avoiding portion so as to avoid contact with a reinforcing material for reinforcing concrete.
[0013]
The invention according to claim 6 is characterized in that the form placing portion on which the concrete form is placed has an interval holding means for regulating the interval between the inner frame and the outer frame of the concrete form.
[0014]
The invention of claim 7 is characterized in that a part or all of the bottom plate, the support legs, and the form placing portion are made of metal.
[0015]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an exploded explanatory view showing a concrete form support according to the present invention. The right and left support legs 3 and 3 of the concrete form support 1 are fixed to the bottom plate 2 by welding.
[0016]
The support leg 3 has a substantially inverted U-shape, and has vertical portions 3 a and 3 b perpendicular to the bottom plate 2 and an inclined portion 3 c inclined inward with respect to the bottom plate 2. By the presence of the inclined portion 3c, it is possible to avoid contact with a reinforcing bar provided to reinforce the foundation concrete.
[0017]
A horizontal bar 4 is stretched between the support legs 3 and 3 and is fixed. The horizontal bar 4 is for mounting a reinforcing bar to be provided.
[0018]
The frame mounting portion 5 is mounted on the support legs 3, 3, and the frame mounting portion 5 is provided with locking means 6, 6 which is detachably fitted to the support legs 3, 3. Have been.
[0019]
The locking means 6, 6 are provided with retaining means 6a, 6a.
[0020]
Further, an avoiding portion 5a is provided at the center of the frame placing portion 5 for avoiding a reinforcing bar which is a reinforcing material of concrete.
[0021]
Here, in the concrete form support 1 according to the present invention, the support legs 3 and 3 and the frame mounting portion 5 are separately provided in order to solve the above-described conventional problems. That is, even if the longitudinal dimension of the frame mounting portion 5 is longer than the dimension A of the reinforcing bar structure 12 shown in FIG. After being installed inside the structure 12, the frame mounting portion 5 may be inserted into the reinforcing bar structure 12 and fitted to the support legs 3, 3 so as to avoid the provided reinforcing bars.
[0022]
Although the frame mounting portion 5 shown in FIG. 1 is formed by processing a round bar, it is formed by processing a flat plate like the frame mounting portion 5b shown in FIG. It may be something.
[0023]
FIG. 3 is an explanatory view showing a portion of the locking means. As shown in FIG. 1, the locking means 6 and 6 are fixed to the frame mounting portion 5 at two positions on the side opposite to the side on which the concrete form is mounted by welding or the like.
[0024]
The locking means 6 allows the frame mounting portion 5 to be disengaged from the support leg 3 by bending inward the U-shaped section fitted into the vertical portion 3b of the support leg 3 and the groove 6b. This is constituted by the retaining means 6a which is made so as not to exist.
[0025]
FIG. 4 is an explanatory view showing another example of the frame placing portion of the concrete formwork support according to the present invention. The frame mounting portion 5c has locking means 6 and 6, and retaining means 6a and 6a, and the portion on which the concrete form is mounted has a space between the inner frame and the outer frame of the form. It also serves as the regulating interval holding means 7. Therefore, what has been conventionally mounted at another place of the concrete formwork using a separate space holding tool can be used for mounting on the concrete form support by using the frame mounting portion 5c. Since work can be performed simultaneously with work, workability can be improved.
[0026]
It goes without saying that various embodiments can be adopted without departing from the spirit of the present invention. In the above embodiment, the locking means is provided on the frame mounting parts 5, 5b, 5c side. However, the locking means may be provided on the support leg 3 side. , 5b, 5c and the support legs 3 may be provided with locking means.
[0027]
Also, the concrete form support according to the present invention is planned to be manufactured entirely of metal, but the present invention is not limited to this, and a part is made of metal and the other part is made of plastic or the like. It may be made of various materials such as synthetic resin.
[0028]
【The invention's effect】
The invention according to claim 1 is a concrete form support having a support leg on a bottom plate and a form placing part for placing a concrete form on the support leg, wherein the form placing part is a support leg. This is a versatile concrete form support that can be used even when the spacing between the reinforcing steel structures is small, since it is characterized by being separately mounted so that it can be attached to and detached from.
[0029]
The invention of claim 2 is characterized in that it has a locking means for integrating the form mounting portion and both or either of the support legs with each other, so that the invention of claim 1 is provided. This is a versatile concrete form support that can be used even when the spacing between the reinforcing structures is narrow.
[0030]
The invention according to claim 3 is characterized in that the retaining means is provided with a retaining means, so that the fixing between the support leg and the form placing portion can be made strong.
[0031]
The invention according to claim 4 is characterized in that the support leg is provided with an inclined portion that extends obliquely inward from the bottom plate so as to avoid contact with a reinforcing material for reinforcing concrete. Can be prevented from contacting the reinforcing bar.
[0032]
The invention according to claim 5 is characterized in that the form placing portion for placing the concrete form has an avoiding portion so as to avoid contact with a reinforcing material for reinforcing concrete. Similarly to the fourth aspect of the present invention, it is possible to avoid contact with a reinforcing bar as a reinforcing material.
[0033]
The invention of claim 6 is characterized in that the form placing portion for placing the concrete form has a space holding means for regulating the space between the inner frame and the outer frame of the concrete form. In addition, there is no need to separately install a space holder, and the workability can be improved.
[0034]
The invention of claim 7 is characterized in that a part or all of the bottom plate, the support legs, and the form mounting portion are made of metal, so that the processing is easy and the manufacturing cost of the concrete form support can be reduced. it can.
[Brief description of the drawings]
FIG. 1 is an exploded explanatory view showing a concrete form support according to the present invention.
FIG. 2 is an explanatory view showing another example of the frame mounting portion of the concrete form support according to the present invention.
FIG. 3 is an explanatory view showing a locking means portion of the concrete form support according to the present invention.
FIG. 4 is an explanatory view showing another example of the frame mounting portion of the concrete formwork support according to the present invention.
FIG. 5 is an explanatory view showing a conventional concrete form support.
FIG. 6 is an explanatory view showing a state where a conventional concrete form support is used at a construction site.
FIG. 7 is an explanatory view showing a reinforcing bar structure.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1, 1a Concrete form support 2 Bottom plate 3 Support leg 4 Horizontal bar 5, 5b, 5c Frame mounting part 6 Locking means 6a Retaining means 7 Spacing means 11 Spacing means 12 Reinforcing structure 13 Base part 14 Stand up Part 15 Reinforced concrete foundation

Claims (7)

A concrete form support having a support leg on a bottom plate and a form placing portion for placing a concrete form on the support leg,
A concrete form support, wherein the form placing portion is detachable from the support leg. The concrete form support according to claim 1, further comprising a locking means for integrating the form mounting portion and both or one of the support legs with each other. 3. The concrete form support according to claim 2, wherein a retaining means is provided in the locking means. 4. The support leg according to claim 1, wherein the support leg has an inclined portion extending obliquely inward from the bottom plate so as to avoid contact with a reinforcing material for reinforcing concrete. Concrete formwork support. 5. The form placement part on which a concrete form is placed has an avoiding part so as to avoid contact with a reinforcing material for reinforcing concrete. 4. The concrete form support according to item 1. 6. The form placing part on which the concrete form is placed has a spacing means for regulating a distance between an inner frame and an outer frame of the concrete form. 4. The concrete form support according to item 1. The concrete form support according to any one of claims 1 to 6, wherein a part or all of the bottom plate, the support legs, and the form placing portion are made of metal.

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