JPH10266562A - Joint metal tool for assembling concrete form - Google Patents

Abstract

PROBLEM TO BE SOLVED: To rapidly connect and assemble mutual ends of a concrete form board such as plywood and also rapidly disassemble the forms and improve the assembling and finishing precision without skills and positional deviation by anyone and reduce the construction period and cost. SOLUTION: This joint metal tool is provided with a plate forming beveled and notched holes for assembling and wide-mouthed and oval holes for assembling, a bolt 2 bent at right angles at both ends so as to correspond to the distance of the notched hole and the oval hole of the plate 1, a holding metal tool 3 with the width of the form, made to fix to the bolt 2 by bending both ends, and various kinds of plates and bolts deformed in accordance with the shape of the connection part of the concrete forms. In this way, concrete forms are assembled so as to be adaptable for various connections of the concrete forms by the various plates 1 and bolts 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete formwork for joining and assembling end faces of wooden boards such as plywood (plywood), which can be assembled by being deformed into a shape conforming to a joint portion. The present invention relates to fittings for fittings.

[0002]

2. Description of the Related Art In assembling a formwork which cannot be standardized due to a large scale such as a retaining wall or a wall of concrete, a formwork plate material is cut or added at the site, and the site is assembled. Since it is often required to assemble the formwork according to the assembling situation, it is common to join together wooden boards such as plywood (plywood). Then, in order to assemble the formwork by joining the wooden boards, a joining formwork conventionally manufactured by framed a pier is nailed to the end of the joined portion of the wooden board. Then, the concrete formwork has been assembled by nailing together the piers of the joining formwork.

[0003] However, the method of assembling the formwork by nailing the joining formwork is liable to be displaced at the time of nailing, and not only requires experience and skill but also requires time for assembling and dismantling the formwork. As a result, it is not possible to shorten the construction period or reduce the construction cost, and due to misalignment, a step is formed at the jointed part, and the finish is not clean, or the width of the formwork fluctuates due to the internal pressure at the time of concrete inflow. However, there is a problem such as inconsistency.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention is suitable for assembling a concrete formwork by joining wooden boards together with shapes and assembling conditions of various joints such as flat surfaces and corners. By providing joint fittings, it is possible to assemble and disassemble in a short time without requiring experience and skill, to shorten the construction period and reduce the cost, and to reduce the displacement of the joints and the inflow of concrete. The variation of the form width is prevented by the internal pressure to obtain a finish with a constant dimensional accuracy, and the solution is as follows. That is,

(1) A plate provided with a plurality of assembling holes on each side of a square, a bolt having both ends bent in the same direction so as to match a positional interval between the assembling holes of the plate, and A holding metal fitting having a form width in which both ends are bent in the same direction and locked, and the plate and the bolt are deformed in accordance with a joint portion of the form plate material, for assembling a concrete form. It is a fitting.

(2) An elliptical hole for assembly having a wide opening on two sides opposite to a grooved notch for assembly is provided symmetrically on each side of a square plate. When assembling bolts and plates deformed according to the corner joints of the formwork with the joint fittings for assembling the concrete formwork, release the bolts so that the tips do not hit the holes for plate assembly It is a joint fitting made easy to perform.

(3) The concrete according to (1), characterized in that ribs are protruded at the edges of the grooved notch for assembly in (2) and the oval hole for assembly having a wide opening. When using a thin metal plate to form a notch hole or an oval hole using a thin metal plate with a formwork assembly fitting, the strength of the assembly hole is reinforced to make it difficult to deform, and the tightening nut is attached to the plate A joint fitting which is easily lifted and removed from the surface by floating from the surface.

(4) The joint for assembling a concrete formwork according to (1), wherein the plate is bent at a right angle from any of the longitudinal and lateral center lines of the plate according to (2) and (3). The fitting is a fitting fitting suitable for joining the form plates having an outer corner or an inner corner at a corner of a concrete formwork.

(5) The plate is bent at a right angle by being displaced from either the vertical or horizontal center line of the plate according to (2) and (3) according to the thickness of the form plate, or
(1) The position of the notch for assembly and the oval hole on either side bent from the center line of either the vertical or horizontal direction is displaced in accordance with the thickness of the mold plate material. When joining the outer and inner bends at the corners of the concrete formwork with the joint fittings for concrete formwork assembly,
A fitting fitting adapted to take into account the thickness of the form plate material.

(6) The joint fitting for assembling a concrete formwork according to (1), wherein the plate is cut off from the longitudinal or horizontal center line of the plate according to (2) and (3). Thus, the present invention provides a joint fitting suitable for flat joining of a frame plate material at an upper end portion or a lower end portion of a concrete formwork.

(7) The joint fitting for assembling a concrete form according to (1), wherein the joint is separated from a center of the plate bent at a right angle described in (4) and (5). A joint fitting suitable for joining at the upper and lower ends of the outer corner and the inner corner at the corner of the concrete formwork.

(8) The concrete mold according to (1), wherein both ends are bent at a right angle in the same direction or opposite directions from the center of a bolt whose both ends are bent at a right angle in the same direction. A joint metal fitting for frame assembly, which is suitable for joining an outer corner or an inner corner at a corner of a concrete formwork.

(9) Displacement from the center of the bolt whose both ends are bent at the right angle in the same direction in accordance with the thickness of the form plate, and bent at the same or opposite to the bending direction at both ends. The joint fitting for concrete formwork assembly according to (1), wherein the joint fitting is adapted to be joined in consideration of the thickness of the formwork plate material at the outer corner or the inner corner at the corner of the concrete formwork. Metal fittings.

(10) A notch groove is provided inside the bending root of the holding bracket whose both ends are bent in the same direction, and the notch groove is fitted into the notch groove of the bolt and locked to maintain the form width. The joint fitting for concrete formwork as set forth in (1), wherein the width of the formwork does not fluctuate due to the internal pressure of the concrete when the concrete flows therein.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings showing an embodiment. As shown in FIG. 1, the present invention has a plurality of assembly holes provided on each side of a square. A plate 1 and a bolt 2 having both ends bent in the same direction at a right angle so as to match the position interval of the assembling holes of the plate, and a mold having both ends bent in the same direction and locked to the bolt. A holding metal fitting 3 having a frame width, and the plate 1 and the bolt 2
Is deformed in accordance with the joint portion of the form plate material.

The plate 1 is a rectangular metal thin plate, and has notches A, A, B, B, C, C, C, C, and C on each side.
C is provided, and the oblong holes D, D, E, and E for assembling are provided symmetrically with the wide-open relief provided on two opposing sides. In addition, the plate is provided with a center hole, a reference hole at the time of seam assembly,
Considering that a holding bracket (not shown) of the existing form width can be attached, a hole for nailing is provided in each of the four spaces so that it can be used when it cannot be assembled with temporary fixing or bolts. consider.

The bolt 2 is formed with threads at both ends so that a dimension B, which is bent at a right angle in the same direction, matches the positional interval A between the cutout hole and the oblong hole provided in the plate 1. . The bolt 2 is provided with cutout grooves 2a at both ends or a center portion for engaging a holding fitting having a form width (provided at both ends in the present embodiment). In assembling a formwork at a construction site or the like, the notch groove 2a may not be provided. The holding metal fitting 3 has both ends bent in the same direction, and the notch grooves 3a, 3
a is provided, and fitted and locked in the notch grooves 2a provided at both ends or the center of the bolt 2, so that the width of the formwork can be maintained.

When the assembling hole of the plate is formed as a notched hole or an oblong hole using a thin metal plate, the strength of the hole is reduced, and the hole is easily deformed when repeatedly attached and detached with a bolt and a tightening nut or a tightening tool. . In this case, as shown in FIG. 2A, the plate is provided with ribs 1a, 1
It is assumed that b is protruded. Since the notch hole and the oblong hole for assembly are reinforced by projecting a rib on the edge,
It is difficult to be deformed and the durability is improved. In addition, since the fastening nut or the fastening tool can be assembled in a state of being floated from the plate surface, attachment and detachment can be easily and quickly performed.

The plates 1 and 1A have a horizontal center line X-
The plate 1 is bent at a right angle from any of the center lines X and the vertical center line YY. For example, the plate 1 is bent at a right angle from the center lines XX and YY of the plate 1 as shown in FIGS.
By deforming as shown in FIGS. 1B and 1C, it is made suitable for the seam assembly of the corner portion of the concrete formwork.
When the plate 1B is formed with an assembling hole through a bolt tip in accordance with the position of a notch hole or an oval hole for assembling the plate in the form plate material, the plate 1B and the plate 1A are vertically or horizontally aligned. It may be bent, but if an assembly hole is to be drilled in the form plate beforehand with the same dimensions from the end face and a bolt point is to be assembled, displacement is made according to the thickness of the form plate from the vertical or horizontal center line. At the position where it is bent at a right angle, or the position of the assembly notch hole or the oval hole on one side bent from the center line is displaced according to the thickness of the mold plate material, and the concrete mold plate material is provided. It should be suitable for the seam assembly of the corner part.
In the case of bending the plate 1A having the ribs protruded, the plate is bent so that the ribs protrude outward for the outer curved corners, and is bent such that the ribs protrude inward for the inner curved corners.

The plates 1 and 1A are separated from any one of the horizontal center line XX and the vertical center line YY, for example, separated from the center line XX of the plate 1, The plate is deformed like a plate 1D shown in FIG. 5 so as to be suitable for the flat seam assembly of the form plates at the upper end and lower end of the concrete form.

FIGS. 3 and 4 show an example in which the plates 1 and 1A are bent at right angles and deformed so as to be adapted to the seam assembly of the corner portion of the concrete form as described above. -Z, deformed into plates 1E and 1F as shown in FIGS. 6 and 7 and adapted to the seam assembly of the upper and lower corners of the inner and outer corners of the corner of the concrete formwork. I did it.

The bolt 2 shown in FIG. 1 is bent at a right angle from the center in the same direction as the bending direction of both ends, and is deformed like a bolt 2A shown in FIG. Alternatively, it is displaced from the center position according to the thickness of the form plate material, and is similarly bent and deformed. Further, the bolt 2 is bent at a right angle from the center in a direction opposite to the bending direction of both ends, and is deformed like a bolt 2B shown in FIG. Alternatively, it is displaced from the center position according to the thickness of the form plate material, and is similarly bent and deformed.

As described above, the bolts 2 in FIG. 1 are deformed, and the plates formed by bending the plates 1 and 1A at right angles are applied to the joints of the inner corners and the outer corners of the corners of the concrete formwork. When the plate is applied to the joint at the inner bend, the bolt 2A is applied to the outer bend, and the bolt 2B is passed through the inside of the mold and tightened with a tightening nut or a fastener. When an assembling hole for assembling through the bolt tip with the same dimension from the end face of the form plate is made in advance, the plate and the bolt displaced from the center and bent in accordance with the thickness of the form plate are assembled correspondingly. .

Next, referring to FIG. 10 which shows a part of an embodiment in which a mold is assembled using the joint fitting for assembling a concrete mold according to the present invention, a wooden board such as a plywood (plywood) is used. Form plate materials W1, W2, ... W12
In the seam assembling, form plate materials W1, W2, W
In the four-plane joint assembly of W3 and W4, the plate 1 is applied equally to the ends of the four form plates so as to equally lie on the center hole of the plate 1 and the bolts 2,
2, the bolts are inserted from the inside of the formwork by connecting the formwork plate members W1 and W2, W3 and W4,
B through the b, b, b
4. Assemble by tightening with 4, 4 or existing fasteners (not shown). Alternatively, the bolts 2 and 2 are connected to the form plates W1 and W3 and W
2 and W4, the bolts can be assembled by passing the bolts through the notches C, C, C, and C for assembling the plate. Crossover may be performed using a notch for assembly.

Formwork plate W1 at the upper end of concrete formwork
And W2 and W9 and W10 on the opposite side in the joint assembly, a plate 1D cut off from either the vertical or horizontal center line of the plate 1 is attached to the ends of the two form plates. The bolts 2 and 2 are applied so that the bolts 2 and 2 can be used to connect the form plates W1 and W2 and W9 and W10, and the bolts can be passed through the form from within the form and tightened with a tightening nut or an existing tightening tool. The bolts 2 and 2 hold both ends of the holding metal fitting 3 so that the width of the formwork does not fluctuate due to the internal pressure when flowing into the concrete formwork. The holding fitting 3 does not have to be used in places where the strength of the form plate material is sufficient and there is no possibility of deformation of the form plate material due to the internal pressure due to the inflow of concrete or in the construction site form form assembling.

In the joint assembly of the corners of the concrete formwork, the plates 1B and 1C, which are bent at right angles from either the vertical or horizontal center line of the plate 1, apply the outer bend angles of the corners to the plate 1B. Frame board material W
1 and W5 and W3 and W7 are bent from the center of the bolt in the direction opposite to the bent portions at both ends, so that bolts 2B and 2B are connected to each other so that the bolts are respectively inserted into the cutout holes A, A, B, and B of the plate 1B. Through the assembly, using a tightening nut or an existing tightening tool. The inner bend angle is applied to the plate 1C, and the form plates W5 and W6, and W7 and W8 are bent from the center of the bolt 2 in the same direction as the bent portions at both ends.
By cross-joining A and 2A, bolts are respectively passed through the assembling holes D, D, E, and E of the plate 1C, and assembled with a fastening nut or an existing fastening tool. In the case of a plate having ribs protruding from the notch hole and the oblong hole for assembly, the plate is used by protruding outward.

In the joint assembling of the corners of the corners of the concrete formwork, plates 1E and 1F, which are obtained by dividing the plates 1B and 1C from the center, are applied to the outer and inner bends of the upper end of the corners, and the outer bend is set to the plate 1E.
To form plates W1 and W5 and W11 and W1 on the opposite side.
2 is bent from the center of the bolt 2 in the direction opposite to the bent portion at both ends, so that the plate 1
Insert the bolts into the notches A and A
Assembling with a fastening nut or an existing fastening tool, the inner bend angle is applied to the plate 1F, and the form plates W5 and W6 and the opposite sides W9 and W11 are bent from the center of the bolt 2 in the same direction as the bent portions at both ends from the center of the bolt 2. The bolts are passed through the assembling holes E and E of the plate 1F, and assembled with a fastening nut or an existing fastening tool.

In assembling the corner portion, the bolts 2B used for the plates 1B and 1E of the outer curved portion have a shape in which the bolt ends are spread outward, so that the plate assembling holes are formed with notches. The bolt 2A used for the plates 1C and 1F of the inner bend has a shape in which the bolt tip is narrowed inward. Therefore, the assembling hole of the plate is an oval hole with a wide opening relief. This facilitates attachment and detachment. Also, in joining the frame plate materials in the corner portion, when assembling by previously drilling an assembly hole for passing a bolt at the same dimension position from the end face of the form plate material,
Since the plate assembly hole position and the bolt bending position do not match depending on the thickness of the form plate, the plate and bolt bending position and the plate assembly hole position are set in the form plate positions provided in the form plate in advance. The displacement is performed so as to match In the case of a plate having ribs protruding from the notch hole and the oval hole for assembly, the outer bent corner plate is protruded outward, and the inner bent corner plate is protruded inward.

[0029]

According to the present invention, when joining wooden boards such as plywood and assembling a concrete formwork, a metal fitting fitting adapted to the joint is used to assemble and disassemble during disassembly. In addition to facilitating the assembly, it is possible to quickly provide metal fittings that match the on-site assembly conditions, and without the need for experience or skill, the concrete formwork can be assembled and dismantled in a short time, shortening the construction period and This is extremely effective in reducing construction costs. In addition, the joint portion is assembled while being pressed down so as to be flush with the metal plate surface, and the holding width of the forming width does not fluctuate the forming width due to the internal pressure at the time of inflow of the concrete, and has a constant size. A uniform and smooth finished surface can be obtained.

[Brief description of the drawings]

FIG. 1 is a perspective view of an embodiment of a joint fitting for assembling a concrete formwork according to the present invention, wherein (1-1) is a plate, (1-2) is a bolt, and (1-3) is a holding fitting.

FIG. 2 is a perspective view of a plate having ribs protruding from a notch for assembly and an oblong hole for assembly of the plate 1 in FIG.

FIG. 3 is a perspective view of a plate formed by bending the plate 1 in FIG. 1 at a right angle from a horizontal center line XX.

FIG. 4 is a perspective view of a plate which is bent at a right angle from a vertical center line YY of the plate 1 in FIG.

FIG. 5 is a perspective view of a plate divided from a horizontal center line XX of the blade 1 in FIG.

FIG. 6 is a perspective view of a plate divided from a plate 1B (1) ZZ in FIG. 3;

FIG. 7 is a perspective view of a plate obtained by dividing the plate 1C in FIG. 4 from ZZ.

8 is a perspective view of a bolt formed by bending the bolt 2 in FIG. 1 in the same direction as the bending direction at both ends.

9 is a perspective view of a bolt obtained by bending the bolt 2 in FIG. 1 in a direction opposite to a bending direction at both ends.

FIG. 10 is a perspective view showing a part of an embodiment in which the formwork is assembled by the joint fitting for assembling the concrete formwork according to the present invention.

[Explanation of symbols]

1, 1A, 1B, 1C, 1D, 1E, 1F Plate 1a, 1b Rib 2, 2A, 2B Bolt 2a, 3a Cutout groove 3 Holder 4 Tightening nut I, B, C Cutout hole for assembly D, E Assembly length Circular hole F Center hole G Nail hole W1, W2, W3, W4, W5, W6, W7, W8, W
9, W10, W11, W12 Form plate

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[Procedure amendment]

[Submission date] July 7, 1997

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claim 3

[Correction method] Change

[Correction contents]

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] Claim 4

[Correction method] Change

[Correction contents]

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] Claim 5

[Correction method] Change

[Correction contents]

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] Claim 6

[Correction method] Change

[Correction contents]

[Procedure amendment 5]

[Document name to be amended] Statement

[Correction target item name] Claim 7

[Correction method] Change

[Correction contents]

Claims (10)

[Claims] 1. A plate having a plurality of assembling holes on each side of a square, a bolt having both ends bent at a right angle in the same direction so as to match a positional interval between the assembling holes of the plate, and the bolt A holding metal fitting having a form width in which both ends are bent in the same direction and locked, and a concrete form formed by deforming the plate and the bolt in accordance with a joint portion of the form plate. Fitting fittings for assembly. 2. The assembly according to claim 1, wherein an oblong hole for assembly having a wide opening on two sides opposite to the notched hole for assembly is provided symmetrically on each side of the rectangular plate. Joint fitting for concrete formwork assembly. 3. The concrete mold according to claim 1, wherein ribs are protruded at edges of the grooved notch for assembly and the oval hole for assembly having a wide opening. Joint fittings for frame assembly. 4. The joint fitting for assembling a concrete formwork according to claim 1, wherein the plate is bent at a right angle from any of the vertical and horizontal center lines of the plate according to claim 2. 5. The plate according to claim 2, wherein the plate is displaced at a right angle from a vertical or horizontal center line of the plate according to the thickness of the form plate, or the plate is vertically or horizontally. 2. The concrete formwork assembly according to claim 1, wherein the positions of the notch for assembly and the oval hole on one side bent from one of the center lines are displaced in accordance with the thickness of the formwork plate material. Fittings. 6. The joint fitting for assembling a concrete formwork according to claim 1, wherein the joint is cut off from a longitudinal or lateral center line of the plate according to claim 2. 7. The joint fitting for assembling a concrete formwork according to claim 1, wherein the joint is separated from a center of the plate bent at a right angle according to claim 4 or 5. 8. The concrete formwork according to claim 1, wherein both ends are bent at right angles in the same or opposite directions from the center of a bolt having both ends bent at right angles in the same direction. Fitting fittings for assembly. 9. A method in which both ends are displaced from the center of a bolt bent at a right angle in the same direction in accordance with the thickness of a form plate, and bent at the same or opposite to the bending direction at both ends. The joint fitting for assembling a concrete formwork according to claim 1, wherein: 10. A notch groove is provided inside a bending root of a holding bracket having both ends bent in the same direction, and the notch groove is fitted and locked in a notch groove of a bolt to maintain a form width. The joint fitting for assembling a concrete formwork according to claim 1, wherein: