JP3116063U - Cone for formwork support - Google Patents

Abstract

[PROBLEMS] To remove a mold foot and remove a mold frame when removing the mold frame, and to prevent reuse of the mold material because it does not cause damage to the mold frame (such as a control panel). A support cone is provided.
A metal female screw cylinder is embedded in almost the entire length of the central part of the tapered cone body having a large diameter on the mold side, and a separator can be screwed into the inner end thereof. A mold support cone that allows the inner end of the shaft foot to be screwed on the outer end side of the screw cylinder with a concrete mold in between. The end of the separator is screwed to the inner end side of the female screw cylinder. The inner end of the shaft foot is screwed to the outer end side with a concrete mold in between, and a concrete formwork is fixed by screwing a formwork clamping rod to the outer end portion of the shaft foot. After the concrete placed in the frame is solidified, the shaft foot is removed, and it can be used to remove the formwork.
[Selection] Figure 1

Description

This invention relates to a formwork support cone, and in particular, this invention is a formwork support cone in which a metal female screw cylinder is embedded in the center of a cone body, and includes a separator and a shaft foot. It can be attached to the female screw cylinder, and the concrete is cast and molded in the concrete mold fixed by the mold support cone and the mold clamp, and after the concrete is solidified, the shaft foot is removed, The present invention relates to a formwork support cone which can be removed.

In constructing the concrete wall, as shown in FIG. 8, both end portions of the separator 4 (only one end portion is shown in this figure) are connected to the cone body 2 and the female screw cylinder 3 having the shaft foot portion 6 on one side. Is screwed into the inner end side of the female thread cylinder 3 of the cone 1 for supporting the formwork, and the shaft foot portion 6 is protruded from the concrete formwork 5. A concrete tie 5 is fixed by screwing a foam tie (not shown). After the concrete C placed in the form 5 is solidified, the form 5 is removed, and the cone body 2 is removed to form a cavity. The cavities 7 are filled with mortar so that the cavities 7 are filled.

Japanese Patent Laid-Open No. 2001-173232 (see Patent Document 1) discloses an end of a separator on the inner end side of a female screw cylinder of a mold supporting cone in which a metal female screw cylinder is embedded in the center of a cone body. Screw the part, screw the inner end of the shaft foot with a concrete mold on the outer end side of the female screw cylinder, and screw the formwork clamping rod to the outer end of the shaft foot to form the concrete mold After the concrete placed in this formwork has solidified, the shaft end is removed and the formwork is removed. In the concrete wall construction method, the outer end face of the female screw cylinder is more than the outer end face of the cone body. Use a mold support cone that has been immersed inward, and remove the shaft foot so that a cavity made of synthetic resin or rubber covers the cavity, and the inside of the cavity The projecting annular projection presses against the inner surface of the cavity, and Concrete wall construction method is shown, characterized in that formed by filling screwed by write means.
JP 2001-173232 A

In the conventional example shown in FIG. 8, the shaft foot portion is screwed into the inner end side of the female screw cylinder of the cone for supporting the formwork composed of the cone main body and the female screw cylinder provided with the shaft foot portion on one side, and the shaft foot portion is a concrete mold It protrudes from the frame. Therefore, when the concrete formwork is fixed by screwing the formwork tightening rod to the shaft foot, and the concrete placed in this formwork is solidified and the formwork is removed, the shaft foot There was a drawback that the removal work would be obstructed and the formwork (such as the control panel) would be damaged, making it difficult to reuse the formwork material.

In addition, the mold support cone disclosed in Japanese Patent Laid-Open No. 2001-173232 (see Patent Document 1) uses a mold support cone in which the outer end surface of the female screw cylinder is recessed inward from the outer end surface of the cone body. A mold supporting cone is shown in which a synthetic resin or rubber heel is screwed into a cavity portion of a cone which has become a cavity by removing a foot so as to cover the cavity portion. In this example, the shaft foot can be removed from the cone body, but the cone for supporting the formwork has a structure in which the outer end surface of the female screw cylinder is immersed inward from the outer end surface of the cone body, so that the embedded formwork support Because the shrinkage rate of concrete and plastic mold support cones is different, there is a gap and water can easily enter, and the concrete placed in the immersive part provided on the outer end surface of the female screw cylinder There was a problem that clogging was likely to occur.

In view of the above-mentioned problems, the present invention can remove the shaft foot and remove the mold frame when removing the mold, so that the shaft foot does not interfere with the removal work of the mold, It is another object of the present invention to provide a mold supporting cone that can promote the reuse of the mold material because it does not cause damage to the mold (such as a control panel).
At the same time, it is an embedded mold or a detachable mold support cone, and the recess after removal of the mold support cone is filled with mortar of the same shrinkage rate so that there is no gap and water etc. does not enter and the female Another object of the present invention is to provide a mold supporting cone that does not cause clogging of the cast concrete because there is no immersive portion on the outer end surface of the screw cylinder.

That is, in the mold support cone according to the first aspect of the present invention, a metal female screw cylinder is embedded in substantially the entire length of the center of the tapered cone body having a large diameter on the mold side, and the female The separator is screwable on the inner end side of the screw cylinder, and on the outer end side of the female screw cylinder is a formwork support cone that allows the inner end of the shaft foot to be screwed with a concrete mold in between. Then, the end of the separator is screwed into the inner end of the female screw cylinder, the inner end of the shaft foot is screwed into the outer end of the female screw cylinder with a concrete mold in between, and the outer end of the shaft foot is The concrete formwork was fixed by screwing the formwork tightening rod to the concrete, and after the concrete placed in this formwork had solidified, it was made possible to use it to remove the shaft foot and remove the formwork It is characterized by.

The mold support cone of the invention according to claim 2 is characterized in that the mold support cone has a solid structure of the entire tapered cone body.

According to a third aspect of the present invention, the metal support cylinder of the invention is characterized in that a flange is provided on the small diameter side of the tapered cone body.

According to the first aspect of the present invention, the shaft foot can be removed and the mold frame can be removed when removing the formwork, so that the shaft foot does not interfere with the work for removing the formwork. Since the frame (such as the control panel) is not damaged, it is possible to provide a mold supporting cone that can promote the reuse of the mold material.
In addition, it is possible to provide an embedded mold or a removable combination mold support cone. When removing the mold support cone, the recess is filled with mortar having the same shrinkage rate as that of concrete, so that no gap is formed and water or the like can be prevented from entering.

According to the second aspect of the present invention, since there is no immersive portion on the outer end surface of the female screw cylinder, it is possible to provide a mold supporting cone in which the placed concrete does not clog.

According to the third aspect of the present invention, the metal female screw cylinder is provided with a flange on the small diameter side of the tapered cone body, so that the mold clamping pin is provided at the outer end of the shaft foot. It is possible to reliably receive the load applied when the concrete mold is fixed by screwing the flange, and it is possible to provide a mold support cone that is easy to manufacture and has no problem in strength. It was.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a mold support cone according to the present invention will be described below in detail with reference to the drawings.
FIG. 1 is a side view showing an embodiment of a mold supporting cone according to the present invention, FIG. 2 is a front view thereof, FIG. 3 is a rear view thereof, and FIG. 5 is a side view showing a first procedure of mold removal, FIG. 6 is a side view showing a second procedure of mold removal, and FIG. 7 is a side view showing a third procedure of mold removal. is there.

As shown in FIGS. 1 to 3, the mold support cone 11 is concentric with the tapered cone body 12 having a large diameter on the mold side and substantially the entire length of the cone body 12 at the center of the cone body 12. It is comprised with the metal female screw cylinder 13 embed | buried in the shape.
The mold supporting cone 11 is made of a strong synthetic resin, and it is preferable to use a material that is preferably familiar with the cast concrete. A female screw portion 14 is formed in the metal female screw cylinder 13.

A separator 15 can be screwed into the inner end side of the female screw cylinder 13, and a concrete mold 17 (metal, control panel, etc.) is sandwiched between the outer end side of the female screw cylinder 13 and the male screw is extended over the entire length. The inner end portion of the shaft foot 16 having the shape can be screwed.

The mold support cone 11 of the present invention is also characterized in that the entire tapered cone body 12 is a solid structure. That is, since there is no recess in the outer end surface of the female screw cylinder 13 of the tapered cone body 12, the placed concrete does not become clogged, and the subsequent clogging removal work becomes unnecessary.

Further, the mold supporting cone 11 of the present invention is characterized in that the metal female screw cylinder 13 is provided with a flange 18 on the small diameter side of the tapered cone body 12. This flange 18 can reliably receive the load applied when fixing the concrete formwork 17 by screwing a formwork tightening rod (form tie not shown) to the outer end of the shaft foot 16. Therefore, it is possible to provide a mold support cone that is easy and has no problem in strength.

Next, a concrete wall construction procedure using the formwork supporting cone 11 of the present invention will be described with reference to FIGS.
First, as shown in FIG. 4, the end of the separator 15 is screwed into the inner end of the female screw cylinder 13, and the concrete mold 17 is sandwiched between the inner ends of the shaft legs 16 on the outer end of the female screw cylinder 13. The end is screwed, and a formwork clamping rod (form tie not shown) is screwed onto the outer end of the shaft foot 16 to fix the concrete formwork 17.

Next, as shown in FIG. 5, after the concrete cast in the concrete mold 17 is solidified, the mold clamps (form tie not shown) are removed, and then the shaft foot 16 is also removed.
Thereafter, as shown in FIG. 6, the concrete mold 17 is removed. However, since the shaft foot 16 has already been removed, it may interfere with the removal work of the concrete mold 17, or the concrete mold 17 (such as a control panel). The problem that it becomes difficult to reuse the formwork material due to the damage of the mold.

In particular, in the demolding of the concrete mold 17 inside the structure having a curve, an unreasonable force is not applied to the concrete mold 17, so that a fall accident at the time of demolding can be prevented.
Further, when removing the concrete formwork 17, it is possible to remove a large amount of the concrete formwork 17 at a time by staking the upper part of the concrete formwork 17, so that the work efficiency is improved and the concrete formwork is improved. Since it is not necessary to hand 17, it is possible to prevent the concrete formwork 17 from being dropped.
When the concrete formwork 17 is removed, the outer end face of the cone body 12 of the formwork support cone 11 is exposed flush with the concrete wall face.

Finally, as shown in FIG. 7, the mold support cone 11 is removed, and the separator 15 is waterproofed.

The formwork support cone of the present invention can be used not only in ordinary concrete wall placing work, but also in reinforced concrete placing work and other concrete structure placing work.
For example, when a reinforced concrete structure is manufactured, it is possible to secure the cover of a general structure and to prevent water from entering by lengthening the form support cone.

It is a side view which shows one Example of the cone for formwork support of this invention. It is the front view. FIG. It is a side view which shows the state of the assembly completion of a formwork. It is a side view which shows the 1st procedure of mold removal of a formwork. It is a side view which shows the 2nd procedure of mold removal of a formwork. It is a side view which shows the 3rd procedure of mold removal of a formwork. It is a side view explaining the conventional cone for cone support.

Explanation of symbols

11 Cone for supporting formwork 12 Cone body 13 Female threaded cylinder 14 Female threaded part 15 Separator 16 Shaft foot 17 Concrete formwork 18 Flange

Claims (3)

A metal female screw cylinder is embedded in almost the entire length of the central part of the tapered cone body having a large diameter on the mold side, and a separator can be screwed into the inner end side of the female screw cylinder. On the outer end side of the female screw cylinder is a mold support cone in which the inner end of the shaft foot can be screwed with a concrete mold in between, and the end of the separator is provided on the inner end side of the female screw cylinder Screw in and screw the inner end of the shaft foot into the outer end of the female screw cylinder with the concrete mold in between, and screw the formwork clamp to the outer end of the shaft foot to fix the concrete formwork Then, after the concrete cast in the mold is solidified, the shaft foot is removed, and the mold support cone can be used to remove the mold. The formwork support cone according to claim 1, wherein the formwork support cone has a solid structure of the entire tapered cone body. The mold support cone according to claim 1 or 2, wherein the metal female screw cylinder is provided with a flange on a small diameter side of the tapered cone body.

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