JPH0996106A - Support for form clamp - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate the attachment and removable of a form clamp in safety. SOLUTION: A support 31 for a form clamp is substantially composed of a bracket member 32, a holding member 33 and a nut member 34. One end part of the bracket member 32 is bent by a right angle so as to form a hook 35, an angle-like support piece 36 is welded to the intermediate position thereof so as to be projected therefrom, and the other end part thereof is formed with a male thread 37 adapted to be threadedly engaged with the nut member 31. The hook 35 can be inserted in a clip hole 24 formed in a rib 23 on the rear surface side of a form panel 21. The holding member 33 is formed at a position near and below the center a through-hole in which the bracket member 32 is inserted, and is bent in its upper end part so as to constitute a holding piece.

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 mold clamp used in constructing RC columns.

[0002]

2. Description of the Related Art When assembling an RC column formwork using a metal formwork panel called a metal foam, a predetermined formwork clamp is attached around the formwork panel to firmly fix the formwork panel. Is common.

FIG. 8 (a) shows an example of such a form clamp. The formwork clamp 1 shown in the figure includes a pair of clamp members 2 and 2 arranged to face each other with an RC column to be constructed therebetween, and a binding member 3 for tightly binding them together.
Each of the clamp members 2 is configured by connecting two arms 5a and 5b in an orthogonal direction via an L-shaped metal fitting 4.

Here, the L-shaped metal fitting 4 has one arm 5a.
It is fixed on the side, but on the other arm 5b side, the connecting position with the arm 5b can be changed by pulling out the pin 6 and replacing it with another pin hole 7.

On the other hand, the binding member 3 includes two pulling rods 1 arranged in parallel, as can be seen from FIGS. 2 (b) and 2 (c).
1, 11 are passed through the reaction force plate 12, the ends thereof are fixed to the attracting plate 13, and a predetermined screw member 14 is screwed onto the attracting plate 13, and the tip thereof is the reaction force plate 12. Abutted against. Then, the reaction force plate 12 is applied to a predetermined portion of the arm 5b, the pulling rods 11 and 11 are sandwiched from the upper and lower sides of the arm 5a, and the pin 9 is drilled in the ring 15 formed at the tip of the pulling rod 11 and the arm 5a. The pin hole 8 is inserted.

When the screw member 14 is turned in such a state, the attracting plate 13 and the attracting rod 11 move to the arm 5b side with respect to the reaction plate 12, and thus the arm 5a of one clamp member 2 and the other of the other. The arm 5b of the clamp member 2 is tightly connected.

FIG. 9 shows a state in which the standard form panel 21 and the corner form panel 22 are combined to form an RC column form, and the form clamp 1 described above is attached to the periphery of the form. Is.

[0008]

Such a mold clamp 1
Is to be applied to RC columns having various cross-sectional dimensions or cross-sectional shapes by appropriately adjusting the connection position between the L-shaped metal fitting 4 and the arm 5b and the connection position between the arms 5a and 5b belonging to different clamp members 2. However, there was room for improvement in workability of installation and removal.

That is, when mounting the mold clamp 1, two workers hold the clamp members 2 and 2 separately, and in this state, a third worker uses the binding member 3 to clamp the clamp member 2. Since the work procedure is such that the work clamps 2 are fastened together, the problem that at least three workers are required for the work of attaching the form clamp 1 and that the work force is kept constant during the work of fastening the clamp members 2. It had to be carried by hand, which caused a problem that it was a heavy burden on workers.

Such a problem similarly occurs when the mold clamp 1 is removed, and there is room for consideration in terms of safety when work is performed at a high place.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a support tool for a mold clamp which enables safe and easy mounting and dismounting of the mold clamp. .

[0012]

In order to achieve the above object, the support of the mold clamp according to the present invention has a clip hole formed in a rib on the rear side of the mold panel as described in claim 1. A bracket member having a hook to be inserted at one end, and a predetermined supporting piece protruding from the hook at a position separated from the hook by the distance between the clip hole and the edge of the rib, and a penetrating member through which the bracket member is inserted. A holding member having a hole formed at the upper end for holding a mold clamp mounted on the bracket member, and a holding member screwed from the other end of the bracket member to press the holding member against the mold clamp. It is composed of a nut member.

Further, in the supporting tool of the mold clamp according to the present invention, a sleeve is projected from the through hole of the holding member.

In the support tool of the form clamp according to the present invention, first, the form panel of the RC column to be constructed is built in a predetermined position. Next, the bracket member according to the present invention is approached from diagonally above the back surface of the formwork panel, and a hook provided at the tip thereof is inserted into a clip hole formed in a rib on the back surface of the formwork panel. Then, the bracket member is tilted to the front, and the supporting piece is brought into contact with the edge of the rib of the form panel.

Here, the distance from the hook to the support piece is
Since the distance from the clip hole to the edge of the rib is substantially equal, the bracket member is in a substantially horizontal state, and further, the hook at the tip end is supported by a pin, and the support piece apart from the hook is horizontally supported. Therefore, the bracket member maintains balance. Thus, the bracket member is in a state capable of stably supporting the load when the load is loaded thereon.

Next, a pair of clamp members are placed on the bracket member and temporarily placed, and the holding member inserted in the bracket member is moved to the clamp side. Then, the holding piece formed on the upper end is aligned with the top end of the clamp member.

Next, the nut member is screwed into the other end of the bracket member, the holding member is pressed against the clamp member, the clamp member is fixed to the form panel, and the clamp members are tightly joined together using a predetermined fastening member. .

Since the direction of tightening by the nut member and the direction of the reaction force received from the clamp member do not coincide with each other and are eccentric, the holding member tends to be slightly inclined, but the sleeve is projected into the through hole of the holding member. When provided, the holding member is prevented from tilting and the tightening force of the nut member is sufficiently transmitted to the clamp member.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a support for a mold clamp according to the present invention will be described below with reference to the accompanying drawings. It should be noted that parts and the like which are substantially the same as those of the conventional technique are designated by the same reference numerals and the description thereof will be omitted.

FIG. 1 is a perspective view of a support for a form clamp according to this embodiment, FIG. 2 is an exploded perspective view of the same, and FIG.
FIG. 3 is a plan view and a side view seen from two directions orthogonal to each other. As can be seen from these drawings, the support 31 of the form clamp according to the present embodiment is generally composed of a bracket member 32, a holding member 33 and a nut member 34.

The bracket member 32 is entirely constituted by a rod-shaped member having a diameter of about 10 mm. One end of the bracket member 32 is bent at a substantially right angle to form a hook 35, and an angle-shaped support piece 36 is welded at an intermediate position. By the
Further, a male screw 37 for screwing the nut member 34 is provided at the other end.

The hook 35 can be inserted into a clip hole 24 formed in the rib 23 on the back side of the form panel 21, and the hook 3 inserted into the clip hole 24.
5 is bent upward at a predetermined angle so as not to come out naturally. The clip holes 24 are formed in the formwork panels 21, 2
A large number of holes are formed in the rib 23 for attaching a U-shaped clip for connecting the two to each other. Of these clip holes, those not used for attaching the U-shaped clip are used for attaching the bracket member 32. do it.

The supporting piece 36 is provided at a position separated from the hook 35 by a distance D between the clip hole 24 and the edge of the rib 23, as can be seen in FIG. 3 (a).

The holding member 33 is composed of a substantially rectangular plate as a whole, and a through hole 38 into which the bracket member 32 is inserted is formed at a position near the center lower side thereof, and the upper end is bent and formed to be held. It is as a piece 39. Here, the holding piece 39 is formed so that the lower surface thereof coincides with the top end of the clamp member 2 and the through hole 38 of the holding member 33 is formed in the bracket member 32, as can be seen clearly in FIG. When the nut member 34 is screwed into the male screw 37 by passing it through, the clamp member 2 is pressed against the bracket member 32 and held. A sleeve 40 is provided around the through hole 38 by welding or the like so that the holding member 33 can be prevented from tilting and the tightening force of the nut member 34 can be sufficiently transmitted to the clamp member 2. There is.

Next, the operation when the support 31 of the mold clamp according to this embodiment is applied to the mold clamp 1 will be described.

First, the clamp member 2 constituting the mold clamp 1 is preassembled, for example, on the ground. When assembling the clamp member 2, as described in the related art, depending on the size of the RC column to be constructed, as shown in FIG.
As shown in (a), pull out the pin 6 of the L-shaped metal fitting 4 and replace it with another pin hole 7. And L-shaped metal fitting 4
And the connecting position of the arm 5b is changed. FIG. 4B shows a state in which the clamp member 2 is expanded most.

On the other hand, as shown in FIG. 5 (a), by appropriately combining the standard form panel 21 and the corner form panel 22, the form of the RC column to be constructed is built at a predetermined position. Put in.

Next, as shown in FIG. 5 (b), the bracket member 32 is brought closer to the form panels 21 and 22 obliquely from the upper rear side, and a hook 35 provided at the tip thereof is clipped in a clip hole 24 formed in the rib 23. Plug in. Then, the bracket member 32 is tilted to the front, and the supporting piece 36 is brought into contact with the edge of the rib 23.

Here, since the distance from the hook 35 to the support piece 36 is substantially equal to the distance from the clip hole 24 to the edge of the rib 23, the bracket member 32 is in a substantially horizontal state, and further, the hook at the tip end. Since it is pin-supported by 35, and horizontally supported by a support piece 36 located away from the hook 35, the bracket member 32 maintains balance. Thus, the bracket member 32 is in a state in which it can stably support the loaded load on it.

Next, as shown in FIG. 6 (a), the clamp member 2 is placed on the bracket member 32 and is temporarily placed, and then the holding member 33 is inserted into the bracket member 32 to attach the holding piece 39. Align with the top of the clamp member 2.
Then, the nut member 34 is screwed into the other end of the bracket member 32 to press the holding member 33 against the clamp member 2,
The clamp member 2 is fixed to the formwork panels 21 and 22.

Since the direction of tightening by the nut member 34 and the direction of the reaction force received from the clamp member 2 do not coincide with each other and are eccentric, the holding member 33 tends to be slightly inclined, but the through hole of the holding member 33 is formed. Since the sleeve 40 is provided so as to project from the sleeve 38, the holding member 33 is prevented from tilting, and the tightening force of the nut member 34 is sufficiently transmitted to the clamp member 2.

Next, the other clamp member 2 is fixed to the form panels 21 and 22 by the same procedure as described above (FIG. 6).
(b)).

Finally, as shown in FIG. 7, the clamp members 2 are tightly connected to each other by using the tightening member 3. The structure of the binding member 3 and the method of mounting the binding member 3 are the same as those in the prior art, and therefore the description thereof is omitted here.

After the concrete is poured and cured, the mold clamp 1 is removed from the mold panels 21 and 22 in the reverse order to prepare for the next diversion.

As described above, according to the support tool for the form clamp according to the present embodiment, the clamp member can be temporarily placed on the form panel and the clamp members can be tightly connected in this state. Become.

Therefore, in the past, three workers were required to mount the form clamp, but if the support of the present embodiment is used, one worker can perform the work including the tightening work using the tightening member. The number of workers is sufficient, and the work of assembling the RC column formwork is greatly reduced.

Even when the form clamp is removed, it is not necessary to separately support the two clamp members when loosening the binding member, and it is sufficient for a single worker.
In the past, it was necessary to carefully loosen the binding member so as not to drop the clamp member, but according to this embodiment, it is not necessary to use nerves for such work, workability is improved, and safety is improved. There is no problem in terms of. In particular, it is possible to avoid a situation in which a worker accidentally drops the clamp member at the time of disassembling at a high place.

Further, it is not always necessary to completely remove the mold clamp 1 from the mold panels 21 and 22 at the time of demolding. In some cases, only the binding member 3 is removed, and the clamp member 2 is supported by the support 31 to form the mold. Panels 21, 22
It is also possible to hang it with a crane and divert it in such a state that it is fixed or temporarily placed.

Further, according to this embodiment, since the sleeve is provided so as to project in the through hole of the holding member, it is possible to prevent the holding member from tilting, and the tightening force of the nut member is sufficiently transmitted to the clamp member. can do.

In this embodiment, the form clamp is shown in FIG.
However, the support of the present embodiment is not limited to such a form clamp, and is tightly connected to each other while surrounding the form panel. It can be applied to any form clamps of any type.

[0041]

As described above, in the support tool of the mold clamp according to the present invention, the hook which is inserted into the clip hole formed in the rib on the rear side of the mold panel is formed at one end, and A bracket member having a predetermined support piece projecting from a position separated from the hook by a distance from the edge of the rib and a through hole through which the bracket member is inserted are formed and placed on the bracket member. Since the holding member for holding the form clamp is formed on the upper end and the nut member screwed from the other end of the bracket member to press the holding member against the form clamp, mounting of the form clamp In addition, the removal can be performed safely and easily.

[0042]

[Brief description of drawings]

FIG. 1 is a perspective view of a support for a form clamp according to the present embodiment.

FIG. 2 is an exploded perspective view of a support tool of the form clamp according to the present embodiment.

FIG. 3 is also a view of the support according to the present embodiment,
(a) is a plan view, (b) is a side view taken along the line AA, (c)
Is a side view seen from the line BB.

FIG. 4 is a view showing a procedure for attaching the form clamp to the form panel using the support tool according to the present embodiment.

FIG. 5 is a view showing a procedure for attaching the form clamp in the same manner.

FIG. 6 is a view showing a procedure for attaching the form clamp in the same manner.

FIG. 7 is a view showing a state in which a mold clamp is attached to a mold panel.

FIG. 8 is a view showing a formwork clamp of the prior art,
(a) is an overall perspective view, (b) is a side view of the binding member, and (c) is a plan view of the same.

FIG. 9 is an overall perspective view showing how a conventional form clamp is attached to a form panel.

[Explanation of symbols]

 1 Formwork Clamp 2 Clamping Member 3 Tightening Member 21, 22 Formwork Panel 23 Rib 24 Clip Hole 31 Support Tool 32 Bracket Member 33 Holding Member 34 Nut Member 35 Hook 36 Supporting Piece 37 Male Screw 38 Through Hole 39 Holding Piece 40 Sleeve

Claims (2)

[Claims] 1. A hook which is inserted into a clip hole formed in a rib on the rear side of the formwork panel is formed at one end, and a predetermined distance is provided between the clip hole and the edge of the rib. A bracket member on which a support piece is provided, a holding member having a through hole through which the bracket member is formed, and a holding piece for holding a formwork clamp placed on the bracket member, formed on the upper end; A support tool for a mold clamp, comprising a nut member screwed from the other end of the bracket member to press the holding member against the mold clamp. 2. The support tool for a mold clamp according to claim 1, wherein a sleeve is provided in a projecting manner in the through hole of the holding member.