JP2722188B2 - Form clamp 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 support for a form clamp used in constructing an RC column.

[0002]

2. Description of the Related Art When assembling a RC pillar form using a metal form panel called a metal foam, a predetermined form clamp is attached around the form panel to firmly fix the form panel. It is common.

FIG. 8A shows an example of such a form clamp. A form clamp 1 shown in FIG. 1 includes a pair of clamp members 2 and 2 opposed to each other with an RC column to be constructed sandwiched therebetween, and a binding member 3 for binding these members to each other.
3, and each clamp member 2 is configured by connecting two arms 5 a and 5 b via an L-shaped bracket 4 in an orthogonal direction.

Here, the L-shaped bracket 4 is connected to one of the arms 5a.
The side is fixed on the side, but the connection 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 arm 5b side.

On the other hand, as can be clearly understood from FIGS. 1 (b) and 1 (c), the binding member 3 comprises two pulling rods 1 arranged in parallel.
1 and 11 are penetrated through the reaction plate 12, and the ends thereof are fixed to the pull plate 13, and a predetermined screw member 14 is screwed into the pull plate 13, and the tip thereof is connected to the reaction plate 12. Is in contact with Then, the reaction force plate 12 is applied to a predetermined portion of the arm 5b, and the pulling rods 11, 11 are sandwiched from above and below the arm 5a, and the pin 9 is pierced into the ring 15 formed at the tip of the pulling rod 11 and the arm 5a. Into the pin hole 8.

If the screw member 14 is turned in this state, the pulling plate 13 and the pulling rod 11 move toward the arm 5b with respect to the reaction force plate 12, and thus the arm 5a of the one clamp member 2 and the other are moved. The arm 5b of the clamp member 2 is tightened.

FIG. 9 shows a state in which a formwork of an RC column is assembled by combining a standard formwork panel 21 and a corner formwork panel 22, and the above-described formwork clamp 1 is attached around the formwork. It is.

[0008]

SUMMARY OF THE INVENTION
Can be applied to RC pillars having various cross-sectional dimensions or cross-sectional shapes by appropriately adjusting the connecting position between the L-shaped bracket 4 and the arm 5b and the connecting position between the arm 5a and the arm 5b belonging to different clamp members 2. However, there is room for improvement in the workability of the installation and removal.

That is, when attaching the form 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 2 requires a minimum of three workers to attach the form clamp 1, and the worker has to keep the clamp member 2 fixed during the clamping operation of the clamp member 2. Had to be held by hand, causing a problem that it became a great burden for workers.

[0010] Such a problem similarly occurs when the form clamp 1 is removed, and there is room for consideration in terms of safety when work is performed at a high place.

SUMMARY OF THE INVENTION The present invention has been made in consideration of the above circumstances, and has as its object to provide a support for a form clamp capable of safely and easily mounting and removing the form clamp. .

[0012]

In order to achieve the above object, a support for a form clamp according to the present invention is provided with a clip hole formed in a rib on the back side of a form panel. A bracket member having a hook inserted at one end and a predetermined supporting piece projecting from the hook at a distance between the clip hole and the edge of the rib, and a through hole through which the bracket member is inserted; A holding member having a hole formed therein and holding a form clamp placed on the bracket member is formed at an upper end, and a holding member is screwed in from the other end of the bracket member to press the holding member against the form clamp. It consists of a nut member.

[0013] Further, in the support of the form clamp according to the present invention, a sleeve is protruded from a through hole of the holding member.

In the support of the form clamp according to the present invention, first, the form panel of the RC column to be constructed is erected at a predetermined position. Next, the bracket member according to the present invention is approached from obliquely above the back of the form panel, and a hook provided at the tip thereof is inserted into a clip hole formed in a rib on the back of the form panel. Then, the bracket member is lowered toward the user, and the support 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 furthermore, the pin at the tip hook is supported by pins, and the support piece at a position away from the hook is horizontally supported. Therefore, the bracket member keeps the balance. Thus, when a load is loaded on the bracket member, the bracket member is in a state capable of stably supporting the load.

Next, a pair of clamp members are placed on the bracket member and temporarily placed, and the holding member inserted into 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 to press the holding member against the clamp member, and the clamp member is fixed to the form panel, and the clamp members are tightened using a predetermined tightening member. .

Here, since the direction of the 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 projects through the through hole of the holding member. In this case, the holding member is prevented from tilting, and the tightening force of the nut member is sufficiently transmitted to the clamp member.

[0019]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a support for a form clamp according to the present invention. It is to be noted that the same reference numerals are given to components and the like that are substantially the same as those in the conventional technology, and description thereof will be omitted.

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 the same, and FIG.
It is the same top view and the side view seen from two orthogonal directions. As can be seen from these drawings, the support 31 of the form clamp according to the present embodiment is generally constituted by a bracket member 32, a holding member 33, and a nut member.

The bracket member 32 is formed entirely of a rod-shaped member having a diameter of about 10 mm, and one end thereof is bent substantially at a right angle to form a hook 35, and an angle-shaped support piece 36 is welded to an intermediate position. Protruded by
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 through the clip hole 24 is formed.
5 is bent upward at a predetermined angle so as not to fall out naturally. Note that the clip holes 24 are formed in the form panels 21 and 2.
A large number of holes are drilled in the ribs 23 to mount U-shaped clips connecting the two to each other. Of these clip holes, those not used for mounting the U-shaped clip are used for mounting the bracket member 32. do it.

The support 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 clearly seen in FIG.

The holding member 33 is formed of a substantially rectangular plate as a whole. The holding member 33 has a through hole 38 through which the bracket member 32 is inserted at a position below the center thereof, and the upper end is formed by bending. There is 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, as can be clearly seen in FIG. 3B, and the through hole 38 of the holding member 33 is formed in the bracket member 32. When the nut member 34 is screwed into the male screw 37 through the clamp member 2, the clamp member 2 is pressed and held between the bracket member 32 and the bracket member 32. Further, a sleeve 40 is protruded around the through hole 38 by welding or the like, so that the holding member 33 is prevented from tilting, so that the tightening force of the nut member 34 can be sufficiently transmitted to the clamp member 2. I have.

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

First, the clamp member 2 constituting the form clamp 1 is assembled in advance on the ground, for example. When assembling the clamp member 2, as described in the related art, FIG.
As shown in (a), the pin 6 of the L-shaped bracket 4 is pulled out and replaced with another pin hole 7 as appropriate. And L-shaped bracket 4
The connecting position between the arm and the arm 5b is changed. FIG. 4B shows a state where the clamp member 2 is expanded to the maximum.

On the other hand, as shown in FIG. 5 (a), by appropriately combining the standard formwork panel 21 and the corner formwork panel 22, the formwork 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 approached from obliquely above the back surface of the form panels 21 and 22, and the hook 35 provided at the end thereof is connected to the clip hole 24 formed in the rib 23. Plug in. Then, the bracket member 32 is lowered toward the user, and the support 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. At 35, a pin is supported, and at a position remote from the hook 35, the support piece 36 is horizontally supported, so that the bracket member 32 keeps balance. Thus, the bracket member 32 can stably support the load thereon.

Next, as shown in FIG. 6A, the clamp member 2 is placed on the bracket member 32 and temporarily placed, and then the holding member 33 is inserted into the bracket member 32 so that the holding piece 39 is attached. Align with the top end 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 form panels 21 and 22.

Here, since the direction of the 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. Since the sleeve 40 protrudes from the holding member 38, the inclination of the holding member 33 is prevented, 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 in the same procedure as described above (FIG. 6).
(b)).

Finally, as shown in FIG. 7, the clamp members 2, 2 are fastened to each other using the fastening member 3. Note that the structure of the binding member 3 and the method of attaching the same are the same as in the related art, and thus description thereof is omitted here.

After the concrete has been poured and cured, the form clamp 1 is removed from the form panels 21 and 22 in the reverse order to prepare for the next conversion.

As described above, according to the support of the form clamp according to the present embodiment, it is possible to temporarily place the clamp member on the form panel once, and to tighten the clamp members in such a state. Become.

Therefore, conventionally, three workers were required to mount the form clamp. However, if the supporter of the present embodiment is used, one worker can perform the work including the tightening work by the tightening member. The number of members is sufficient, and the work of assembling the formwork of the RC column is greatly reduced.

When removing the form clamp, it is not necessary to separately support the two clamp members when loosening the binding member, so that only one worker is required.
Conventionally, it was necessary to carefully loosen the binding member so as not to drop the clamp member. However, according to the present embodiment, it is not necessary to use nerves for such work, and workability is improved and safety is improved. There is no problem in this regard. In particular, it is possible to prevent a situation in which an operator accidentally drops the clamp member when dismantling at a high place.

When removing the mold, it is not always necessary to completely remove the form clamp 1 from the form panels 21 and 22. In some cases, only the binding member 3 is removed, and the clamp member 2 is fixed to the form by the support 31. Panels 21, 22
It is also possible to fix or temporarily place it on the floor and hang it with a crane in such a state.

Further, according to the present embodiment, since the sleeve is projected from the through hole of the holding member, it is possible to prevent the holding member from tilting, and to sufficiently transmit the tightening force of the nut member to the clamp member. can do.

In this embodiment, the form clamp is used as shown in FIG.
However, the support of the present embodiment is not limited to such a form clamp, and is fixed to each other while surrounding the form panel. If it is a type, it can be applied to all form clamps.

[0041]

As described above, the support for the form clamp according to the present invention has a hook formed at one end thereof, which is inserted into a clip hole formed in a rib on the back side of the form panel. A bracket member having a predetermined supporting piece protrudingly provided at 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 piece for holding the form clamp is formed of a holding member formed at the upper end and a nut member screwed from the other end of the bracket member to press the holding member against the form clamp, the mounting of the form clamp is performed. In addition, removal can be performed safely and easily.

[0042]

[Brief description of the 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 of the mold clamp according to the embodiment.

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

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

FIG. 5 is a view showing a procedure for mounting the form clamp.

FIG. 6 is a view showing a procedure for mounting the form clamp.

FIG. 7 is a view showing a state where a form clamp is attached to a form panel;

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

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

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 form clamp 2 clamp member 3 binding member 21, 22 form panel 23 rib 24 clip hole 31 support tool 32 bracket member 33 holding member 34 nut member 35 hook 36 support piece 37 male screw 38 through hole 39 holding piece 40 sleeve

Claims (2)

(57) [Claims] A hook inserted into a clip hole formed in a rib on the back side of a form panel is formed at one end, and a hook is provided at a position separated from the hook by a distance between the clip hole and an edge of the rib. A bracket member having a support piece protruding therefrom, a holding member having a through hole through which the bracket member is inserted, and a holding piece formed at an upper end for holding a form clamp placed on the bracket member; And a nut member screwed from the other end of the bracket member to press the holding member against the mold clamp. 2. A support for a form clamp according to claim 1, wherein a sleeve is provided in a through hole of said holding member.