JPH1077738A - Support for concrete formwork - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a support which has no possibility of positional slippage in setting up a concrete formwork, and can set up the height of a foundation concrete to a desired value. SOLUTION: A concrete formwork support is equipped with a bottom plate 11; a pair of bearing legs 12 formed of metallic bars; and a bearing lever 13 to connect both the bearing legs 12. The bearing leg 12 is formed in a lateral U-shape, and composed of the fixed part 12a of the bottom part, a vertically provided leg part 12b and an upper receiving part 12c. A pair of receiving plates 14 has a stopping piece 14a bended upward on one end edge, and an side edge opposite to the stopping piece 14a is weldedly joined to the lower face of the receiving part 12c of the bearing leg 12. A space keeper is mounted on the support plate 14, and a concrete formwork is supported on the receiving part 12c of the bearing leg 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a support for a concrete formwork used for supporting a concrete formwork, for example, when placing a foundation concrete for a house.

[0002]

2. Description of the Related Art In a conventional support for a concrete formwork of this kind, as shown in FIG.
A pair of metal supporting legs 32 are erected and fixed at a predetermined interval, and a metal supporting portion 33 is fixed horizontally between the two supporting legs 32. The upper portions of both support legs 32 are bent in the lateral direction, and the receiving plate 34 having both sides bent thereon is fixed by welding at the center position. An interval holder 35 is placed on the receiving plate 34, and a concrete form 36 is supported at a predetermined interval.

[0003] When the foundation concrete is cast, the support is placed on the discarded concrete.
The concrete form 36 is supported on the receiving plate 34 of the support tool.

[0004]

However, in this conventional support for a concrete formwork, the receiving plate 34 is fixed by welding to the support legs 32 at the center thereof, and the heavy concrete formwork 36 is supported thereon. Therefore, as shown by the two-dot chain line in FIG. 11, the receiving plate 34 bends downward on both sides around the center portion, and the position of the mold 36 shifts downward.
Therefore, the height of the support from the bottom plate 31 to the formwork 36 changes from H shown in FIG. 11 to h, and the height of the foundation concrete may not be set to a desired value. there were.

[0005] The present invention has been made by paying attention to such problems existing in the prior art. An object of the present invention is to provide a concrete form support capable of setting a height of a foundation concrete to a desired value without causing a positional shift when installing a concrete form. is there.

[0006]

In order to achieve the above object, the invention of a concrete form support according to the first aspect of the present invention includes a metal support leg, and a concrete form on the support leg. In a concrete form support that is adapted to support a mounting body for supporting a spacing retainer for maintaining a spacing of the concrete form to the support leg,
The upper edge of the receiver is set to be the same height as the upper edge of the support leg or lower than the upper edge of the support leg.

According to a second aspect of the present invention, in the support for a concrete formwork according to the first aspect, the support legs are constituted by a pair of metal rods, and both support legs are connected by a connecting member. The receiving body is composed of a receiving plate, and a side edge of the receiving plate is bent to form a stopper, and the upper edge of the stopper is flush with the upper edge of the supporting leg or on the supporting leg. It is set to be lower than the edge.

According to a third aspect of the present invention, in the concrete form support of the second aspect, the pair of support legs are formed in a substantially inverted U-shape by bending a metal rod, and the bottom portion thereof is formed. Is joined to the bottom plate, the upper part of the support leg is used as a receiving part for supporting the concrete formwork, and the receiving plate is joined to the lower surface of the receiving part.

According to a fourth aspect of the present invention, in the concrete form support of the second or third aspect, the receiving plate is made of a plate cut out from a bottom plate. According to a fifth aspect of the present invention, in the support for a concrete formwork according to the first aspect, the receiving body is formed of a round bar.

Therefore, when the foundation concrete is cast using the concrete form support of the first aspect, the support is placed on the discarded concrete, and the two support legs are mounted. Support the concrete formwork on the upper edge. At this time, since the upper edge of the receiving portion is set to be the same height as the upper edge of the support leg or lower than the upper edge of the support leg, the concrete form is substantially on the support leg. Supported by

Therefore, there is no possibility that the receiving portion is bent, and no displacement occurs. As a result, the height of the foundation concrete can be set to a desired value. In the support for concrete formwork according to claim 2, since the support legs are constituted by a pair of metal rods and the two support legs are connected by the connecting member, the structure of the support can be simplified. it can. Further, the side edge of the receiving plate is bent to form a stopper, and the upper edge of the stopper is set to be the same height as the upper edge of the support leg or lower than the upper edge of the support leg. Is done. For this reason, the movement of the spacing member on which the stopper piece is placed on the receiving plate can be restricted, and the concrete form can be substantially supported on the support legs.

In a third aspect of the present invention, the pair of support legs are formed in a substantially inverted U-shape by bending a metal bar, and the bottoms thereof are joined to the bottom plate and supported. A receiving plate is joined to the lower surface of the receiving portion located on the upper part of the leg. Therefore, the upper edge of the stopper provided on the side edge of the receiving plate can be easily set to be lower than the upper edge of the support leg, and the support can be easily manufactured.

According to the fourth aspect of the present invention, the receiving plate is formed of a plate cut out from the bottom plate. For this reason, while maintaining the function of the bottom plate, it is possible to save the material for manufacturing the receiving plate, and it is possible to reduce the manufacturing cost of the support.

In the support for a concrete form according to a fifth aspect, the receiving body is constituted by a round bar. For this reason, even when the concrete form is inadvertently brought into contact with the receiver, deformation of the receiver can be effectively prevented.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION

(First Embodiment) Hereinafter, a first embodiment of the present invention will be described in detail with reference to FIGS.

As shown in FIG. 1, the support according to the first embodiment includes a bottom plate 11, a pair of support legs 12 formed in a substantially horizontal U-shape, and a connecting member for connecting the two support legs 12. And a pair of receiving plates 14 as receiving bodies joined to the upper portions of the supporting legs 12. The bottom plate 11 is formed in a flat plate shape from a metal plate such as iron, and has a rectangular drain hole 15 for extracting water and extra mortar at two places in the center, and a support member is positioned on both sides. A pair of mark notches 16 are formed.

Each of the support legs 12 is folded in a substantially horizontal U-shape by a round bar made of metal such as iron so as to have a fixed portion 12a at a bottom position, a leg portion 12b at an intermediate position, and a receiving portion 12c at an upper position. It is bent and fixed by welding at a predetermined interval in an upright state on the upper surface of the bottom plate 11 at the fixing portion 12a.

Each of the receiving plates 14 is formed of a square plate-shaped metal plate, one side edge of which is welded and fixed to the lower surface of the receiving portion 12c of the support leg 12, and the other side edge thereof is perpendicularly formed upward by press molding. It is bent to form a stop piece 14a. The stopper piece 14a restricts the movement of the spacing member mounted on the stopper member in the width direction, reinforces the receiving plate 14, and prevents the receiving plate 14 from being twisted. As shown in FIG. 2, the stopper 14 a has an upper edge formed on the receiving portion 12 c of the support leg 12.
Is set lower than the upper edge by a distance D so that the cloth-based concrete formwork 17 does not contact when supported on the receiving portion 12c of the support leg 12.

The supporting rod 13 is cut into a predetermined length by a metal round bar, and is fixed by welding to a middle part of the legs 12b of the two supporting legs 12 in a state of being horizontally suspended. Then, as shown in FIG. 3, the form support is supported on a mortar 20 formed to a predetermined thickness on a cobblestone 19 spread on the ground 18. A spacing holder 21 is placed on the support plate 14 of the supporter, and the support leg 12 is held in a state in which the position of the mold 17 is restricted between the outer regulating piece 22 and the inner regulating piece 23.
Is supported on the receiving portion 12c.

Furthermore, the mortar 2 on both sides of the support
The base concrete formwork 24 is installed on the top 0, and the inner edges thereof are supported on the receiving portions 12c of the both support legs 12. Reinforcing bars 25 composed of a large number of horizontal bars 25a and vertical bars 25b are inserted between the formwork 17 for the cloth foundation concrete,
The lowermost horizontal streak 25a is supported on the support rod 13 of each support. When the concrete is cast, the base concrete formwork 24 forms the base concrete 26.
Is molded, and the formwork 17 for the cloth foundation concrete is formed.
Thereby, the cloth foundation concrete 27 is formed.

Next, the operation of the concrete form support thus constructed will be described. By the way, when we put foundation concrete using this support,
As shown in FIG. 3, paving stones 19 are spread over the ground 18 and a mortar 20 is formed thereon to a predetermined thickness. A plurality of supports are placed on the mortar 20 so as to be arranged in a line at predetermined intervals with the mark notch 16 as a mark for positioning. At this time, since the excess mortar 20 comes out from the hole 15 of the bottom plate 11 of the support, the positioning of the support can be performed accurately, and the bottom plate 11 of the support can be stably placed on the mortar 20 after the mortar 20 is hardened. It can be fixed in the state where it was done.

Next, the spacing member 21 is placed on both receiving plates 14 of each supporting member. In this state, the fabric base concrete formwork 17 is supported on the receiving portions 12c of the two support legs 12 of each support tool, and the position is regulated by the outer regulating piece 22 and the inner regulating piece 23 of the spacing member 21. A base concrete formwork 24 is installed on the mortar 20 on both sides of the support, and the inner edges thereof are supported on the receiving portions 13c of the support legs 13.

Further, the form 1 for fabric-based concrete
A reinforcing bar 25 composed of a large number of horizontal bars 25a and vertical bars 25b is inserted between the bars 7, and the lowermost horizontal bar 25a is supported on the support rod 13 of each support.

Thereafter, when concrete is poured between the form foundations 17 for the cloth foundation concrete, the base concrete 26 is formed by the form bases 24 for the base concrete, and the foundation concrete 27 is formed by the form forms 17 for the foundation foundation concrete. Is done. And each supporting tool is a reinforcing bar 2
5 together with these concretes 26 and 27.

The effects exerted by the above embodiment will be described below. (1) Since the upper edge of the stopper piece 14 a provided on the side edge of the receiving plate 14 is set lower than the upper edge of the support leg 12, when the cloth foundation concrete 27 is poured, both supports are provided. When the concrete form 17 is supported on the upper edge of the leg 12, there is no possibility that the form 17 is placed on the receiving plate 14. For this reason, the receiving plate 14 does not bend, and the concrete form 17 is supported on the receiving portion 12c of the support leg 12, so that no displacement occurs.

Accordingly, the heavy and large formwork 17 can be supported on the support legs 12. Further, the height of the cloth foundation concrete 27 can be set to a desired value. (2) The pair of support legs 12 are formed in a substantially horizontal U-shape by bending a metal round bar, and the fixed portion 12a at the bottom thereof is joined to the bottom plate 11 and the receiving portion above the support leg 12 is provided. 1
2c supports the concrete form 17 and its receiving portion 12
The receiving plate 14 is joined to the lower surface of c. For this reason, the upper edge of the stopper 14a provided on the side edge of the receiving plate 14 is
It can be easily set to be lower than the upper edge of the second receiving portion 12c, and the support can be easily manufactured. (3) The concrete form 17 is a stopper 1 of the receiving plate 14.
The mold 17 is easy to move because it is supported on the receiving portion 12c of the round bar-shaped support leg 12 instead of on the mold 4a.
7 can be easily installed. (Second Embodiment) Next, a second embodiment of the present invention will be described with reference to FIG.
Explanation will be made based on FIG.

As shown in FIG. 4, in the second embodiment, each of the holes 15 formed by a pair of holes 15a and 15b provided in the bottom plate 11 of the supporting member has the same rectangular size. Is formed. And FIG.
As shown in (1), both plate members 28 cut out by the respective holes 15a and 15b are used as the receiving plate 14. That is, one side edge of each receiving plate 14 is bent at a right angle to a predetermined width by press molding to form a stopper 14a.

Then, the side edge of the receiving plate 14 opposite to the stopper piece 14a is joined to the lower surface of the receiving portion 12c of the support leg 12 by welding. In this way, the receiving plate 14 for supporting the spacing member 21 is attached to the supporting member.

According to the second embodiment, the receiving plate 14
However, since it is composed of the plate material 28 cut out from the bottom plate 11, it is possible to save the material for manufacturing the receiving plate 14 while maintaining the function of the bottom plate 11, and to reduce the manufacturing cost of the support. Can be. (Third Embodiment) Next, a third embodiment of the present invention will be described with reference to FIG.
It will be described based on.

As shown in FIG. 7, in the third embodiment, the rhombus-shaped hole 15 is formed in the bottom plate 11 of the support.
And a rectangular hole 15
c are provided on both sides of the bottom plate 11. The plurality of reinforcing ribs 11a are formed vertically and horizontally on the bottom plate 11, and
1 b is formed around the bottom plate 11. The leg portion 12b and the receiving portion 12c of the pair of support legs 12 form an inverted U shape, and the center leg portion 12b is connected by a support rod 13.

The fixing portion 12a of the support leg 12 extends on the bottom plate 11 in a direction orthogonal to a plane formed by the leg portion 12b and the receiving portion 12c. A plurality of concave reinforcing ribs 14b are formed on the receiving plate 14, and the reinforcing portions 14c
Is formed on the stopper 14a of the receiving plate 14 so as to correspond to the reinforcing rib 14b.

According to the third embodiment, in addition to the effects of the first embodiment, the reinforcing ribs 14b and the reinforcing portions 14c provide
The strength of the receiving plate 14 can be increased. In addition, bottom plate 1
The support tool can be easily and reliably positioned at a predetermined position on the mortar by the one hole 15, 15c.
The strength of the bottom plate 11 can be improved by the plurality of reinforcing ribs 11a and the ridges 11b. (Fourth Embodiment) Next, a fourth embodiment of the present invention will be described with reference to FIG.
It will be described based on. In this embodiment,
Mainly, portions different from the third embodiment will be described.

The first leg 12d, which is located at the lower part outside the support leg 12, is disposed so as to be located inside the second leg 12e, which is upper. The sloping portion 12f includes the first leg 1
It is formed obliquely so as to connect 2d and the second leg 12e. The nail holes 30 are provided at the four corners of the bottom plate 11, and the bottom plate 11 is positioned and fixed on the mortar 20 by using a nail (not shown) using the nail holes 30. Neither the hole 15c nor the reinforcing rib 11a is provided.

According to the fourth embodiment, the first leg 12
d is connected to the second leg 12e via the inclined portion 12f, and the first leg 12d is located inside the second leg 12e. For this reason, the support can be easily arranged on the mortar 20 without coming into contact with a not-shown base concrete reinforcing bar extending in a direction orthogonal to the surface of the support leg 12.

The present invention can be embodied by changing the form as follows. (A) In the second embodiment, the holes 15a, 15b
Is made into one large hole, and the cut plate material is cut into a receiving plate. (B) As shown in FIG. 6 (a), a stopper 14a of the receiving plate 14 is provided on both sides of one end of the receiving plate 14,
As shown in (b), a stopper 14a of the receiving plate 14 is provided at the center of one end of the receiving plate 14. (C) As shown in FIG. 6 (c), the rectangular plate member 28 is cut along its diagonal line to form a pair of triangular plate members 28a, the tops of which are bent to form the stopper pieces 14a, and the receiving plate 14 is formed. To configure. In this case, the plate member 28 can be effectively used. (D) As shown in FIG. 9A, the stopper plate 14a is omitted as the receiving plate 14, and the receiving plate 14 is formed in a flat plate shape. (E) As shown in FIG. 9 (b), the receiving plate 14 is positioned on both sides of the support leg 12, and the stoppers 14a are provided at both end edges.
To be bent. Also, as shown in FIG.
A semi-cylindrical engaging concave portion 29 is provided at the center position of the receiving plate 14, and the engaging concave portion 29 is engaged with the lower surface of the receiving portion 12 c of the support leg 12 and fixed by welding, and at the same time, the stopper pieces 1 are provided at both end edges.
4a is bent.

In this way, the spacing member 21 can be placed on any side of the receiving plate 14 in accordance with the spacing of the supporting members. (F) As shown in FIG. 9D, the receiving plate 14 is formed in a flat plate shape, and one side edge thereof is fixed by welding to the lateral surface of the leg portion 12 b of the support leg 12. As shown in FIG. 9 (e), the receiving plate 14 is formed in a corrugated plate shape, and one side edge thereof is fixed by welding to the lateral surface of the leg portion 12 b of the support leg 12. (G) As shown in FIG. 10A, the base end of the receiving plate 14 is joined to the lower surface of the receiving portion 12c of the support leg 12, and the distal end is bent downward, laterally, and upward. . Then, the spacing member 21 having the engaging portion 21 a to be engaged with the mold 17 is mounted on the receiving plate 14.

In this way, even if the receiving plate 14 is slightly bent, the spacing member 21 can be prevented from dropping from the receiving plate 14. (H) As shown in FIG. 10 (b), the receiving plate 14 is formed in a flat plate shape, is joined to the lower surface of the receiving portion 12c of the support leg 12, and has a folded portion at the tip.

In this way, even if the receiving plate 14 is inclined or bent, the spacing member 21 can be prevented from dropping from the receiving plate 14. (I) As shown in FIG. 10 (c), the receiving plate 14 is bent in a U-shape, and one side thereof is
To be joined. (G) In each of the above embodiments, the distance D between the upper edge of the stopper 14a of the receiving plate 14 and the upper edge of the receiving portion 12c of the support leg 12 is 0, that is, the upper edge of the stopper 14a and the receiving portion 12c.
Set to the same height as the top edge of

Even with such a configuration, the mold 17 can be substantially supported on the receiving portion 12c of the support leg 12. (L) The receiving plate 14 is formed into a corrugated plate or provided with reinforcing ribs for reinforcement. (E) The support legs 12 are formed in a shape such as a prism such as a quadrangular prism or an elliptical column. (W) Improve the strength of the bottom plate 11 by forming ridges, projections, recesses, and the like on the bottom plate 11. (F) The round bar as the receiving body is inserted into the receiving portion 1 of the supporting leg 12.
Joining to extend laterally from the lower or side of 2c. In addition to this round bar, besides having a perfect circular cross section,
This is a concept that includes a deformed one such as an elliptical shape.

Further, the technical ideas that can be grasped from the above embodiment will be described below. (1) The concrete form support according to claim 1, wherein the receiving plate is cantilevered with respect to a support leg.

In such a configuration, one side edge of the receiving plate may be joined to the lower surface of the support leg, so that the support can be easily formed and the plate material can be effectively used. (2) The concrete form support according to claim 4, wherein the pair of receiving plates have the same shape.

In this way, the receiving plate can be easily manufactured, and the cost can be reduced. (3) The pair of support legs are formed into an inverted U-shape by bending a metal bar, and the bottoms thereof are bent and extended in opposite directions to be joined to the bottom plate. 3. A support for a concrete formwork according to claim 2, wherein a support portion is provided for supporting the support, and a receiving plate is joined to a lower surface of the support portion.

With this configuration, the strength of the support leg can be increased, and the support leg can be fixed to the bottom plate in a stable state. (4) The above-mentioned (3), wherein the lower part is disposed at an inner position from the upper part on the outside of the support leg, and an inclined part is provided between the upper part and the lower part.
The support for a concrete formwork according to 1.

With this configuration, the support can be easily arranged without contacting the reinforcing steel for the base concrete.

[0045]

The present invention is configured as described above, and has the following effects. ADVANTAGE OF THE INVENTION According to the support for concrete forms of the invention of Claim 1, there is no possibility of causing a displacement at the time of installing a concrete form, and the height of foundation concrete can be set to a desired value. .

According to the second aspect of the present invention, the structure of the supporting member can be simplified, the movement of the spacing member in which the stopper is placed on the receiving plate can be restricted, and the concrete formwork can be formed. Can be substantially supported on the support legs.

According to the third aspect of the present invention, the upper edge of the stopper provided on the side edge of the receiving plate can be easily set to be equal to or lower than the upper edge of the support leg. It can be easily manufactured.

According to the fourth aspect of the present invention, while maintaining the function of the bottom plate, the material for manufacturing the receiving plate can be saved, and the manufacturing cost of the support can be reduced. According to the fifth aspect of the present invention, since the receiving body is constituted by the round bar, even when the concrete form is inadvertently brought into contact with the receiving body, the deformation of the receiving body is more effectively prevented. Can be.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a formwork support of a first embodiment.

FIG. 2 is a side view showing a state where the formwork is supported on a formwork support.

FIG. 3 is a cross-sectional view showing a use state of a formwork support.

FIG. 4 is a perspective view showing a formwork support according to a second embodiment.

FIG. 5 is a perspective view showing a pair of receiving plates of the second embodiment.

FIGS. 6A to 6C are perspective views showing another example of the receiving plate.

FIG. 7 is a perspective view showing a formwork support according to a third embodiment.

FIG. 8 is a perspective view showing a formwork support according to a fourth embodiment.

9A to 9E are partial side views showing another example of the receiving plate attached to the support leg.

10A to 10C are partial side views showing another example of the receiving plate attached to the support leg.

FIG. 11 is a side view showing a conventional support for a formwork supporting the formwork.

[Explanation of symbols]

11: bottom plate, 12: supporting leg, 13: supporting rod as connecting member, 14: receiving plate as receiving body, 14a: stopper,
17: Formwork for cloth foundation concrete, 21: Spacing retainer,
28. Plate material.

Claims (5)

[Claims] 1. A concrete formwork support comprising a metal support leg and supporting a concrete formwork on the support leg, wherein the support leg keeps the space between the concrete forms. A support for a concrete formwork in which a receiving body for supporting the pedestal is attached and the upper edge of the receiving body is set to be the same height as the upper edge of the supporting leg or lower than the upper edge of the supporting leg. Utensils. 2. The support leg is formed by a pair of metal rods, the support leg is connected by a connecting member, and a receiving body is formed by a receiving plate, and a side edge of the receiving plate is bent to stop the stopper. 2. The concrete form support according to claim 1, wherein the upper edge of the stopper is set so as to be flush with the upper edge of the support leg or lower than the upper edge of the support leg. 3. The pair of support legs are formed in a substantially inverted U shape by bending a metal bar, and the bottoms thereof are joined to a bottom plate, and the upper portions of the support legs are used as receiving portions for supporting a concrete formwork. A receiving plate joined to a lower surface of the receiving portion.
The support for a concrete formwork according to 1. 4. The concrete form support according to claim 2, wherein the receiving plate is formed of a plate cut out from a bottom plate. 5. The support for a concrete formwork according to claim 1, wherein the receiving body is constituted by a round bar.