JP3083713U - Separator holder for concrete formwork - Google Patents

Abstract

(57) [Summary] PROBLEM TO BE SOLVED: It is possible to reliably and firmly support a separator without deterioration due to elapse of a long period of time or in a cold region, and strength is not reduced. SOLUTION: A metal stopper frame 3 is mounted on the support portion 22 of a holder main body 2 which is integrally provided with a fixing portion 21 for a mold and a support portion 22 for a separator, and is formed on the support portion 22. The stopper piece 35 provided on the stopper frame 3 is positioned in the end insertion hole 24 of the separator.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a separator holder for a concrete formwork used for on-site construction of, for example, building beams.

[0002]

[Prior art]

 A separator holder for a concrete formwork is described in, for example, JP-A-2000-291258. The conventional separator holder is provided with a body having a U-shaped cross section made of Nylon resin at the tip of a mounting member formed of a metal round bar, and fixing the mounting member to an opposing mold. A separator made of a metal round bar is stretched between the main bodies, and the ends are fixed to the main bodies.

[0003]

[Problems to be solved by the invention]

 In the separator holder of the conventional configuration described above, the main body holding the separator is made of resin. Therefore, the resin deteriorates over a long period of time, or hardens and deteriorates in cold regions, resulting in a significant decrease in strength. In particular, the structure in which the separator is fixed with the claw pieces of the holder, and if the claw pieces are made of synthetic resin, the claw pieces are fragile due to deterioration and are easily broken or broken. Therefore, if ready-mixed concrete is poured between the forms while being fixed to the form and holding the separator, the separator will receive a significantly larger load or impact due to the ready-mixed concrete, and the body will be damaged, making it impossible to hold the separator. Serious accidents that make it impossible to support the formwork occur, and it takes time to set up the formwork again. Therefore, an object of the present invention is to provide a separator holder which does not deteriorate for a long time or in a cold region and which can securely support a separator and firmly support a formwork.

[0004]

[Means for Solving the Problems]

 In order to achieve the above object, the invention according to claim 1 of the present invention is directed to a metal stopper frame provided on the support portion of the holder main body, in which a fixing portion for the mold and a support portion for the separator are integrally provided. And a stopper piece provided on the stopper frame is positioned in an end insertion hole of the separator formed in the support portion.

According to a second aspect of the present invention, in the first aspect of the present invention, the stopper frame is provided with an opening facing the end insertion hole of the supporting portion, and the stopper piece is provided. Are provided in the opening so as to face each other in the radial direction in a pair, and are positioned on the lower surface side of the support.

[0006]

[Embodiment of the invention]

 The present invention is described below based on an embodiment shown in the drawings. FIG. 1 is a side view of a state in which the holder main body is partially sectioned and a stopper frame is removed in a vertical cross section. FIG. 2 is a perspective view of the holder main body with the stopper frame removed from below. 4 is a plan view of a state where the stopper frame is expanded, FIG. 4 is a perspective view of a state where the stopper frame is formed from the expanded state, FIG. 5 is a side view showing a part of a state where the separator is inserted, and FIG. 5 is an end view, and FIG. 7 is a side view showing a state where the separator is supported on the mold.

The separator holder 1 of the present invention comprises a holder body 2 and a stopper frame 3 mounted on the holder body 2.

The holder main body 2 integrally includes a fixing portion 21 for the mold and a support portion 22 for the separator, and forms a flange-shaped partition portion 23 between the fixing portion 21 and the support portion 22. Made of metal.

The fixing part 21 has a male screw formed on the surface, and the support part 22 has a thick plate shape and has an end insertion hole 24 for the separator at the center. On the lower surface of the support portion 22, a stopper pin 25 having a low height is protruded from the end insertion hole 24 to the partition portion 23 side.

The stopper frame 3 is formed by press-molding a metal flat plate as shown in FIG. 3. Side portions 32 are provided on the left and right sides of a bottom portion 31, and a short upper surface is provided on an upper end of the side portion 32. The portion 33 extends in a facing manner so as to cover the bottom portion 31, and has a rectangular cylindrical shape in which a part of the upper surface and both ends are open, and the end of the separator is inserted into the center of the bottom portion 31. In this configuration, a rectangular opening 34 is opened, and a stopper piece 35 is extended to oppose two sides of the opening 34 facing each other.

At one end of the bottom 31, a locking piece 36 is provided upright so as to extend to the open portion, and the other end of the bottom 31 is gently lowered downward. A first guide piece 37 that is inclined is provided with a second guide piece 38 at one edge of the opening 34, and a stopper hole 39 is opened at the other edge of the opening 34.

The separator holder 1 of the present invention has a configuration in which the metal stopper frame 3 having the above-described configuration is mounted on the support portion 22 of the holder main body 2. The mounting method is as shown in FIGS. As shown by 2, the open end having the first guide piece 37 is applied to the tip of the support portion 22, and the stopper frame 3 is sufficiently pushed into the support portion 22 for mounting.

In a state where the stopper frame 3 is sufficiently mounted on the support portion 22, the locking piece 36 abuts on the tip of the support portion 22 and the stopper pin 25 engages with the stopper hole 39 as shown in FIG. Therefore, the stopper frame 3 cannot move.

As shown in FIG. 6, the stopper frame 3 has an opening 34 at the lower surface of the end insertion hole 24, and the left and right stopper pieces 35 face the lower surface of the end insertion hole 24 from the left and right. And

When the stopper frame 3 is mounted on the support portion 22, the first guide piece 37 and the second guide piece 38 guide the edge of the bottom portion 31 so that the top edge of the support portion 22 guides the edge. Prevents locking when worn.

As described above, the separator holder 1 of the present invention is configured in a state where the stopper frame 3 is mounted on the support portion 22, and as shown in FIG. Then, the separator holder 1 is applied, the fixing part 21 is made to penetrate the mold 4 and is projected to the outside of the mold, and the protruding end is fixed by the cone 5.

Therefore, since the supporting portion 22 of the separator holder 1 is located on the inner surface of the facing formwork 4 in an opposing manner, the bent end 7 of the separator 6 is inserted into the end insertion hole 24 of the supporting portion 22. Insert firmly from above. Since the external thread 8 is formed at the end 7, the external thread 8 passes through the left and right stopper pieces 35. When the end portion 7 is sufficiently inserted into the insertion hole 24, the tip of the stopper piece 35 bites into the upper end of the male screw portion 8 as shown in FIG. Will be in a bad state.

As described above, when each end 7 of the separator 6 is inserted into and held by the support portion 22 on the inner surfaces of the left and right molds 4, each end 7 of the separator 6 is firmly attached to the separator holder 1. , So that it cannot be detached in a bridging manner between the facing formwork 4.

Therefore, when the ready-mixed concrete is poured into the inside of the mold 4, the separator can be securely supported without coming off or losing due to the impact or load of the concrete.

Although the present invention has been described based on the embodiments shown in the drawings, the present invention is not limited to the above-described embodiments, and unless the configuration described in the claims for utility model registration is changed, It can be implemented in any way. For example, the stopper frame may have any configuration as long as the stopper piece is located in the end insertion hole of the support portion, or may have any configuration as long as the stopper frame can be firmly held in the support portion. . Further, the holder main body without the partition portion 23 may be used.

[0021]

[Effect of the invention]

 In short, in the present invention, a metal stopper frame is attached to the support portion of the holder body, which is integrally provided with a fixing portion for the mold and a support portion for the separator, and the end of the separator formed on the support portion is provided. The stopper piece provided on the stopper frame is positioned in the part insertion hole.

Accordingly, since no synthetic resin is used, the separator does not deteriorate and its strength does not decrease even after a long period of time or even in a cold region, and the separator can be securely supported firmly. An accurate concrete can be constructed without shifting or swinging of the formwork when placing the ready-mixed concrete.

An opening facing the end insertion hole of the support portion is formed in the stopper frame, and a pair of left and right stopper pieces are provided in the opening so as to face in the radial direction. Since it is configured to be located on the lower surface side of the holding portion, it can be used simply by attaching the stopper frame to the support portion, and is of high practical value.

[Brief description of the drawings]

FIG. 1 is a side view of a state in which a holder main body has a partial cross-section and a stopper frame has been removed in a vertical cross-section.

FIG. 2 is a perspective view seen from below of a state in which a stopper frame is removed from a holder main body.

FIG. 3 is a plan view showing a state where a stopper frame is developed.

FIG. 4 is a perspective view of a state in which the stopper frame is molded from an unfolded state.

FIG. 5 is a side view in which a part of a state where a separator is inserted is shown in cross section.

FIG. 6 is an end view in FIG. 5;

FIG. 7 is a side view showing a state where a separator is supported on a mold.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Separator holder 2 Holder main body 3 Stopper frame 21 Fixing part 22 Supporting part 23 Partition part 24 End insertion hole 25 Stopper pin 31 Bottom part 32 Side part 33 Top part 34 Opening 35 Stopper piece 36 Locking piece 37 First guide Piece 38 second guide piece 39 stopper hole

Claims (2)

[Utility model registration claims] 1. A metal stopper frame is mounted on the support portion of a holder main body in which a fixing portion for a mold and a support portion for a separator are integrally provided, and an end portion of the separator formed on the support portion. A separator holder for a concrete form, wherein a stopper piece provided on the stopper frame is positioned in an insertion hole. 2. A stopper frame is provided with an opening facing an end insertion hole of a support portion, and a pair of stopper pieces are provided in the opening so as to face each other in a radial direction. The separator holder for a concrete formwork according to claim 1, wherein the separator holder is located on a lower surface side of the support portion.