JP2585155Y2 - Concrete formwork support - Google Patents

Description

[Detailed description of the invention]

[0001]

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

[0002]

2. Description of the Related Art Conventionally, as this type of form support, there has been known a form support, for example, which is formed in a gate shape and provided with a concave portion in the upper center of which a reinforcing bar is arranged. Both upper sides of the form support are form receiving parts for supporting the form. In addition, as a formwork support, support legs are erected on the bottom plate,
It is also known that the lower end of the support leg is fixed to the bottom plate by welding, and a form receiving portion is provided at the upper end of the support leg.

[0003]

However, since the support leg of the conventional form support is formed by bending a single metal rod, the space between the two form receiving portions, that is, the reinforcing bars are arranged. It is difficult to adjust the interval between the concave portions to be formed each time the device is manufactured. That is, the required intervals of the concave portions between the support legs are various, and to cope with this, it is necessary to prepare various types of support legs having different intervals.

Therefore, an object of the present invention is to provide a concrete form support which can reduce the number of support legs and is advantageous in manufacturing.

[0005]

In order to solve the above-mentioned problems, a mold supporting device according to the present invention comprises a bottom plate made of a metal plate and a metal rod bent to provide a mold receiving portion at an upper end thereof. A concrete form support having a pair of support legs, fixing the support legs on the bottom plate in an upright posture, and providing a horizontal rod support portion between the support legs, wherein the support legs are inverted U-shaped.
Or it is formed in a step shape, and it is
The holding part extending in the direction crossing the
In addition, the same shape as the support leg is arranged symmetrically to the left and right.

[0006]

When manufacturing the form support having the above structure,
Since the supporting legs having the same shape are arranged symmetrically to the left and right, the same type of supporting legs is used even if the distance between the molds is changed. Therefore, the types of the support legs can be reduced, and the manufacture thereof is facilitated. In use, the mold is placed on the mold receiving portion, and a reinforcing bar is arranged on the horizontal rod supporting portion.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Embodiment) A first embodiment of the present invention will now be described with reference to FIGS.
It will be described based on.

[0008] As shown in FIG. 1, the support 1 is used by being placed on a discarded concrete 2. A pair of concrete forms 3 for forming a fabric foundation is supported on a support 1 via a spacing holder 4. Outer regulating pieces 5 and inner regulating pieces 6 for regulating the position of the concrete formwork 3 are protruded from both ends of the spacing member 4. A pair of base concrete forms 7 are installed on the discarded concrete 2, and the upper ends thereof are supported by the support 1. Reference numeral 8 denotes a reinforcing bar, and the horizontal bar 8a is supported by the support 1.

As shown in FIGS. 2 to 14, the support 1 has a rectangular bottom plate 10 formed by pressing a metal plate. A projecting edge 11 is provided on the bottom plate 10 so as to protrude all around, and a reinforcing rib 12 is formed so as to extend vertically and horizontally. A diamond-shaped mark hole 13 for centering the support 1 is provided through the center of the bottom plate 10. A pair of through holes 14 are formed in the vicinity of the mark holes 13, from which uncured waste concrete 2 is projected so that the support 1 can be installed in a stable state.

A pair of support legs 16 are erected on the bottom plate 10. Each support leg 16 is formed by bending a metal bar into a substantially U-shape having the same shape, and includes two legs 17, a form receiving portion 18 at an upper end, and a holding portion 19 at a lower end.
Between the intermediate portions of the inner leg portions 17, a horizontal bar supporting rod 20 as a horizontal rod supporting portion formed by cutting a striped reinforcing bar to a required length is horizontally welded. Then, the interval between the two form receiving portions 18 is maintained at a predetermined interval. The holding portion 19 is bent at a right angle to the lower end of the leg portion 17 so as to hold the support leg 16 in a substantially upright posture. The protruding edge 11 as a positioning portion
Engages with the outer holding portion 19 to attach the support leg 16 to the bottom plate 10.
Are positioned in the longitudinal direction. And each holding part 19
Are fixed to the bottom plate 10 by spot welding.

A receiving plate 22 on which the spacing member 4 is placed is attached to the form receiving portion 18. The receiving plate 22 is formed in a rectangular shape by press molding, and the both sides of the receiving plate 22
The restricting ribs 23 for restricting the position are bent upward, and the reinforcing ribs 24 are bent downward at both end edges. At both ends of the receiving plate 22, narrowed portions 25 project from the lower surface side, and a concave portion 26 is provided at the center thereof (see FIG. 14). The receiving plate 22 is spot-welded to the support leg 16 in a state where the concave portion 26 is fitted and centered in the form receiving portion 18.

The plurality of supports 1 constructed as described above are arranged in a row on the concrete. Receiving plate 2
The concrete formwork 3 is supported on the support 2 via the spacing member 4, and the horizontal streaks 8 a are supported on the horizontal streak support rods 20. In this case, since the reinforcing ribs 12 are provided on the bottom plate 10 vertically and horizontally, the strength of the bottom plate 10 can be increased, and even when the large concrete form 3 is supported, the bottom plate 10 is not likely to be deformed. Since the receiving plate 22 includes the regulating ribs 23, the reinforcing ribs 24, and the squeezed portions 25, the deformation at these portions can be reliably prevented. Also, the horizontal muscle supporting rod 20
Since a striped reinforcing bar having an uneven surface is used, the horizontal bar 8a can be accurately arranged at a predetermined position.

When the support 1 is manufactured, a pair of support legs 16 are placed on the bottom plate 10, the holding portions 19 are welded to the bottom plate 10, and the horizontal bar support rods 20 are welded to the two inner legs 17. The receiving plate 22 is welded to the form receiving portion 18. In this case, the support leg 16 is positioned at a predetermined position on the bottom plate 10 by the engagement between the holding portion 19 and the protruding edge 11, and is held in the upright posture by the holding portion 19.

Therefore, the support legs 16 can be easily welded while being temporarily placed on the bottom plate 10, and can be assembled with high accuracy. The receiving plate 22 is supported by the support legs 16 at the concave portions 26.
Since this is centered, this portion can also be easily and accurately assembled. In addition, since the support legs 16 having the same shape are used, the types of the support legs 16 can be reduced, and the manufacture is easy and the cost is low. In addition, when changing the distance between the two form receiving portions 18, a bottom plate 10 having a predetermined size is prepared, and
It can be easily done simply by changing the length. Second Embodiment Next, a second embodiment of the present invention will be described with reference to FIGS. In the support 1 of the second embodiment, the shape of the support leg 16 is different from that of the first embodiment, and the bottom plate 10 and the receiving plate 2
2 is the same as in the first embodiment. In the figure, the same reference numerals as those in the first embodiment denote the same or corresponding members.

As shown in FIGS. 15 and 20, the pair of support legs 16 are formed by bending a metal bar in a stepwise manner, and are erected on the bottom plate 10 in a superposed state. Each support leg 16 is a horizontal muscle support 2 as a horizontal rod support parallel to the form receiving portion 18.
8 and a bottom rod portion 29. The bottom rod portion 29 is the bottom plate 10
Of the bottom plate 10
(See FIG. 21). The positioning recess 30 is formed between the reinforcing ribs 12 so as to extend in the longitudinal direction of the bottom plate 10 (see FIGS. 2 and 9).
As in the first embodiment, the holding portion 19 holds the support leg 16 in a substantially upright posture at both ends thereof, and the protruding edge 11 engages with the holding portion 19 to position the support leg 16 in the longitudinal direction of the bottom plate 10. doing.

When the support 1 is manufactured, each support leg 16 is placed on the bottom plate 10 in a superposed state, and
9 and the bottom rod portion 29 are welded to the bottom plate 10, and the horizontal streak support portions 28 are welded to each other. Therefore, similarly to the first embodiment, the support legs 16 can be easily and accurately assembled with the support legs 16 temporarily placed on the bottom plate 10. In particular, since the bottom rod portion 29 is positioned in the concave portion 30, the support leg 16
Can be accurately centered on the bottom plate 10. Further, since the horizontal streak support portion 28 is formed integrally with the support leg 16, there is an advantage that the number of components can be reduced. In addition,
In the second embodiment, the rear view of the support 1 is shown in FIG.
(Front view). Third Embodiment As shown in FIGS. 22 to 25, the third embodiment shows a modification of the second embodiment. Here, a support leg 16 having a shape as shown in FIG. 25 in which the bottom rod portion 28 and the holding portion 19 connected thereto are omitted from the support leg 16 of the second embodiment is used. The support leg 16 is welded to the bottom plate 10 at two locations, the holding portion 19 on the long leg 17 side and the lower end of the short leg 32. In this case, by aligning the lower end of the short leg portion 32 with the positioning concave portion 30, the support leg 16 can be easily centered. In addition, there is an advantage that the support legs 16 are formed in the same shape and can be manufactured at low cost. In this modification, the back view of the support 1 is the same as FIG. 22 (front view), the bottom view is the same as FIG. 17, and the left side view is the same as FIG. 24 (right side view). . (Fourth embodiment) A fourth embodiment shows another modification of the second embodiment, as shown in FIGS. Here, support leg 1
The bottom rod portion 29 is provided at the lower end of 6, and its length is set to about half of the bottom rod portion 29 of the second embodiment. The low rod portion 29 is fitted in the positioning recess 30 so that the support leg 16 can be centered on the bottom plate 10 (see FIG. 21).

The present invention is not limited to the above embodiments, but can be embodied by appropriately changing the shape and configuration of each part as exemplified below. (1) The receiving plate 22 is omitted from the support 1. In this case, the concrete form 3 is directly supported on the form receiving portion 18 of the support leg 16 without using the spacing member 4. (2) Cut and raise the positioning part on the inner part of the bottom plate 10,
Thus, the holding section 19 is positioned. in this case,
The protruding edge 11 may be omitted. (3) In the first embodiment, the same metal rod as that of the support leg 16 is cut to form the horizontal bar support rod 20, which is welded to the leg 17.

[0018]

As described in detail above, according to the present invention, the number of types of supporting legs can be reduced, and an excellent effect is obtained in that it is very advantageous in manufacturing.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a concrete form support of a first embodiment according to the present invention in use.

FIG. 2 is a perspective view of the support of FIG.

FIG. 3 is a front view of the support of FIG. 1;

FIG. 4 is a rear view of the support of FIG. 1;

FIG. 5 is a plan view of the support of FIG. 1;

FIG. 6 is a bottom view of the support of FIG. 1;

FIG. 7 is a right side view of the support of FIG. 1;

FIG. 8 is a left side view of the support of FIG. 1;

FIG. 9 is a sectional view taken along line AA of FIG. 3;

FIG. 10 is an end view taken along line BB of FIG. 9;

FIG. 11 is an end view taken along the line CC of FIG. 9;

FIG. 12 is an end view taken along line DD of FIG. 9;

13 is a cross-sectional view showing a main part along line EE in FIG. 5;

FIG. 14 is a cross-sectional view showing a main part along line FF in FIG. 5;

FIG. 15 is a front view showing a support according to a second embodiment of the present invention.

FIG. 16 is a plan view of the support of FIG.

FIG. 17 is a bottom view of the support of FIG.

FIG. 18 is a right side view of the support of FIG.

FIG. 19 is a left side view of the support of FIG.

FIG. 20 is a perspective view showing a support leg of the support tool of FIG.

FIG. 21 is an end view showing a main part along line GG of FIG. 15;

FIG. 22 is a front view of a support according to a third embodiment.

FIG. 23 is a plan view of the support of FIG. 22.

FIG. 24 is a right side view of the support of FIG. 22.

FIG. 25 is a perspective view showing a support leg of the support tool of FIG. 22;

FIG. 26 is a front view of a support according to a fourth embodiment.

FIG. 27 is a perspective view showing a support leg of the support tool of FIG. 26;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Supporting tool, 3 ... Concrete formwork, 10 ... Bottom plate, 11
... projecting edge, 12 ... reinforcing rib, 16 ... support leg, 18 ... form receiving part, 19 ... holding part, 30 ... positioning concave part.

Claims (1)

(57) [Scope of request for utility model registration] 1. A bottom plate made of a metal plate, and a pair of support legs formed by bending a metal bar and providing a form receiving portion at an upper end thereof, and fixing the support legs on the bottom plate in an upright posture; In a concrete form support having a horizontal rod supporting portion between supporting legs , the supporting legs are formed in an inverted U-shape or a step shape, and the number of supporting legs is reduced.
At least one end has a holding part extending in the direction crossing it.
A concrete form support tool characterized by being formed in an extended manner and having the same shape as a support leg arranged symmetrically to the left and right.