JPH08193420A - Synthetic resin separator for mold - Google Patents

Abstract

PURPOSE: To increase workability by close-fitting a mold into an upward channel type close-fit part at both ends and locking the lower side of a check piece which recovers after the mold peripheral parts are passed on the inner surface of a mold peripheral part so as to prevent it from escaping upward. CONSTITUTION: A check piece 8 of a synthetic resin separator A is installed so that its lower side 8' is inclined to the inside of a close-fit part 6 and projected. After it allows the passing of the peripheral part 7 of a synthetic resin mold B from an upper end, it recovers and hooks the peripheral part 8 from the inside. Also reinforcement ribs 12 are provided from an extension part 11 on the outside of raised pieces 1 and 4 provided with the check piece 8 along the outer side of the raised pieces 1 and 4 so that close-fitting of the mold B by the check piece 8 is secured. Then a height difference 13 is provided between the bottom of a concrete depositing interval part 5 and the bottom of the close-fit part 6 so as to absorb a rise height when reinforcements are exposed on the concrete depositing surface. In addition to nail holes 14 in the interval part 5, nail holes 14 are provided in the close-fit part 6 so as to facilitate locking of the separator A with nails. Thus the separator can be detached and attached accurately and easily.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has two synthetic resin mold frames whose front surface is formed as a mold surface and lattice-shaped ribs are provided on the peripheral portion and the back surface surrounded by the peripheral portion so as to face each other. Regarding a separator for a synthetic resin mold frame that is used to stand upright and fit both ends to the peripheral parts of these two mold frames to maintain the concrete driving interval, It is characterized in that a non-return piece is provided so that the peripheral portion of the form is hooked.

[0002]

2. Description of the Related Art Conventional separators are generally made of strip-shaped flat metal, and four standing pieces are erected on one side of the separator to form upwardly U-shaped mold fitting portions at both ends. , The space between the fitting parts at both ends is set to concrete, and the peripheral parts of the two molds standing upright are fitted into the fitting parts, respectively, and then the outermost standing pieces are put inward. It is used by folding back and clamping the peripheral part of the formwork from the inside.

[0003]

As is clear from the above description of the method of use, the conventional separator made of a metal plate is such that the upright piece is bent when the mold is fixed. Therefore, when removing the mold, It requires an operation that causes the standing piece.

For this reason, it is necessary to use a tool for bending and raising the upright piece, which requires much labor.
In addition, since there is no guarantee that the individual separators used will be properly bent to tighten the mold frame, the operator is likely to have variations in construction. And especially when the mold is removed, the mold made of synthetic resin is severely damaged, and metal fatigue occurs in the standing pieces of the separator, so that the mold and the separator have a short period of repeated use and are inferior in durability. is there.

From the above, it is necessary to develop a mold separator which can reduce the labor for constructing the mold, reduce damage to the synthetic resin mold, and facilitate repeated use. Became a problem to be solved.

[0006]

SUMMARY OF THE INVENTION Therefore, according to the present invention, two synthetic resin molds having a front surface formed on a mold surface and lattice-shaped ribs provided on the peripheral portion and the back surface surrounded by the peripheral portion are mutually formed. In a separator for synthetic resin molds, which are installed upright to face each other and have both ends fitted to the peripheral parts of these two molds, and used to maintain the concrete driving interval, the separator is made of synthetic resin. It is made of a molded body, and the first, second, third, and fourth standing pieces are erected on one surface of the flat plate, and the space between the second and third standing pieces is the concrete driving interval portion,
The space between the first and second upright pieces and the space between the third and fourth upright pieces are respectively fitting parts of the synthetic resin mold, and on the inner side surfaces of the first and fourth upright pieces, The upper end is integrally connected to the upright piece, the lower side is inclined so as to project into the fitting portion, elastically allows passage of the peripheral portion of the synthetic resin formwork from the upper end, and then restored, The present invention provides a synthetic resin mold frame separator, which is integrally formed with a non-return piece that hooks a peripheral portion from the inside.

Further, the separator of the present invention is provided with a flat plate-like extending portion on the outside of the first and fourth upright pieces, and stands up in a triangular shape from the extending portion along the outer surface of the upright piece. By providing the reinforcing ribs, the locking of the formwork by the check piece can be further strengthened.

Further, in the separator of the present invention, the extending portion provided with the reinforcing rib and the bottom portion of the fitting portion have a step lower than the bottom portion of the concrete driving interval portion, and The one having the nail hole at the bottom can be stably constructed because the step absorbs the height of the reinforcing bar when the reinforcing bar is exposed on the concrete placing surface. Further, in that case, since the nail for fixing the separator can be driven in by using the nail hole at the bottom of the fitting portion, the work for constructing the form can be performed smoothly and without any trouble.

[0009]

In the separator of the present invention constructed as described above, when the mold is fitted into the upward U-shaped fitting portions at both ends, a non-return piece which moves back around the periphery of the mold and is repositioned. The lower side hooks the inner side surface of the peripheral part to prevent the upper side from coming out. Therefore, the operation of holding the mold is completed only by pushing the synthetic resin mold against the elasticity of the check piece, the use of tools and the like can be omitted, and the mold work with less labor can be performed. Further, since the locking position of the mold by the check piece is constant, the mold can be clamped to a constant level regardless of the operator. When dismantling the formwork, press it against the elasticity of the check piece from the inside of the peripheral part, and retract the lower side from the hooking position,
The synthetic resin mold can be pulled out from the fitting portion of the separator. As described above, the present invention has solved the above-mentioned problems.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, the four standing pieces 1, 2, 3, 4 from the left side in the figure are cross-section T on one side.
The vertical separator A is an integrally molded product of synthetic resin.

The separator A has a concrete driving space 5 between the second and third upstanding pieces 2 and 3, and has a U-shaped upwardly extending first and second upstanding pieces 1 and 2 at both ends. The space and the space between the third and fourth upstanding pieces 3 and 4 are used as fitting portions 6 of the synthetic resin mold B, respectively.

Outer standing pieces 1 and 4 constituting the fitting portion 6
Is a rectangular non-return piece 8 which is provided in the lower portion so as to project obliquely inwardly, leaving a height substantially corresponding to the thickness of the peripheral portion 7 of the synthetic resin mold B. Is equipped with.

The non-return piece 8 has its upper end integrally connected to the respective upstanding pieces 1 and 4, and has a rectangular window hole 9 corresponding to punching on the back side, and the lower side 8'projects into the fitting portion 6. Is provided so as to be inclined, and is elastically allowed to pass through the peripheral portion 7 of the synthetic resin frame B from the upper end, and then restored,
The peripheral portion 7 is hooked from the inside (see FIG. 2).

Further, the outer standing pieces 1 and 4 provided with the check pieces 8 are provided with a groove portion 10 at the upper end thereof, respectively, and the fitting portion 6 is provided.
The fitting of the synthetic resin mold B to the guide is guided. The separator A includes a flat plate-shaped extending portion 11 on the outside of the upstanding pieces 1 and 4 provided with the check pieces 8, and a reinforcing rib that stands up in a triangular shape from the extending portion 11 along the outer surface of the upstanding piece. By providing 12, the fitting of the form B by the check piece 8 can be further strengthened.

Further, the separator A has a step 13 which is set at an appropriate height between the bottom portion of the concrete driving gap portion 5 between the upright pieces 2 and 3 and the bottom portions of the fitting portions 6 at both ends.
Is provided to absorb the height of the protrusion when the reinforcing bar is exposed on the concrete placing surface, and the nail hole 14 at the bottom of the concrete driving interval portion 5 is provided.
Separately from this, a nail hole 14 is also provided in the bottom of the fitting portion 6 having a low height, and when it becomes difficult to nail the separator A onto the concrete placing surface due to the protrusion of the reinforcing bar, the bottom portion of the fitting portion 6 is provided. Also, the nail hole 14 of the above can be used.

As shown in FIG. 2, the synthetic resin mold frame B, which is erected upright to face a predetermined driving interval by using the separator A according to the present invention, has a smooth mold surface 15 on the surface side. An integrally molded product is used, which is formed into a rectangular shape and is continuous from the four sides of the mold surface 15 at a right angle to the rear side, and the lattice-shaped ribs 16 are arranged on the back surface surrounded by the peripheral part 7.

At the time of disassembling the synthetic resin mold B constructed as shown in FIG. 2, the elasticity of the check piece 8 is resisted,
While the lower side 8'which holds the peripheral portion 7 of the synthetic resin frame B is retracted from the inside and pushed into the window hole 9, the fitting portion 6
This can be done by a simple work of pulling out the synthetic resin frame B from the.

[0018]

As described above, since the separator of the present invention is a molded product made of synthetic resin, it is lighter and does not rust as compared with the conventional product made of a metal plate. Further, since the synthetic resin mold is hooked at the fitting position by the lower side of the non-return piece integrally formed in a raised shape on the inner surface of the upright piece outside the fitting portion, the tightening of the mold is constant. To do. Further, since the separator and the mold are attached and detached within the elasticity range of the check piece, it is not necessary to use a special tool, and the detachment can be done manually.

Therefore, the separator and the synthetic resin frame are less damaged, the durability is improved, the labor is reduced, and the time required for the construction is shortened. Further, the cost can be considerably reduced and the economy is excellent as compared with the case where the strip-shaped sheet metal is erected with the upright pieces that form the fitting portion and the concrete driving interval portion. The present invention has extremely excellent effects as described above.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a partially cutaway perspective view showing a usage state of the embodiment.

[Explanation of symbols]

 A Separator 1 1st upright piece 2 2nd upright piece 3 3rd upright piece 4 4th upright piece 5 Concrete driving interval part 6 Fitting part B Synthetic resin form 7 Peripheral part 8 Check piece 8 '' Lower side 9 Window hole 10 Groove portion 11 Extended portion 12 Reinforcing rib 13 Step difference 14 Nail hole 15 Mold surface 16 Rib

Claims (3)

[Claims] 1. A synthetic resin mold frame having a front surface formed on a mold surface and lattice-shaped ribs provided on a peripheral portion and a back surface surrounded by the peripheral portion is erected facing each other. By fitting both ends to the peripheral part of the formwork of the sheet, in the separator for the synthetic resin formwork used to hold the concrete driving interval, the separator is made of a synthetic resin molded body, on one side of the flat plate , 1st, 2nd, 3rd, and 4th standing pieces are erected, and the space between the 2nd and 3rd standing pieces is made into the above-mentioned concrete driving interval part, and between the 1st and 2nd standing pieces. , Third
And the fourth rising piece are fitting parts of the synthetic resin mold, and upper ends are integrally connected to the inner side surfaces of the first and fourth rising pieces and the lower side is fitted. Inclining so as to project into the joint, elastically allowing the passage of the peripheral part of the synthetic resin mold from the upper end and then restoring it, integrally forming a check piece that locks the peripheral part from the inside A separator for molds made of synthetic resin, characterized in that 2. The separator is provided with a flat plate-shaped extending portion on the outside of the first and fourth upright pieces, and a reinforcing member which stands up in a triangular shape from the extended portion along the outer surface of the upright piece. The synthetic resin mold frame separator according to claim 1, further comprising ribs. 3. The extension portion provided with the reinforcing rib and the bottom portion of the fitting portion have a step lower than the bottom portion of the concrete driving interval portion, and a nail hole is formed in the bottom portion of the fitting portion. The synthetic resin mold separator according to claim 2, wherein the separator is provided.