JPH11350729A - Reinforcing fitting of form outside angle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a reinforcing fitting disposed along the outside angle of mutually joined forms and for reinforcing joining between the forms. SOLUTION: The reinforcing fitting 1 is disposed along the outer face of the outside angle of mutually joined forms A, A, and reinforces joining between the forms A, A. In this case, right and left screw parts 30a, 30b formed on the inner ends of right and left arm members 3a, 3b respectively are screwed on a cylinder 2 providing screw nut parts 21a, 21b in both ends, the right and left arm members 3a, 3b are bent to form curvature parts 31, 31, a plate piece 32 is integrally provided on both the curvature parts 31, 31, and a wedge insertion oblong 32a is drilled in these plate piece. The wedge insertion oblong hole 32a is overlapped on a wedge driving oblong hole B1 by rotating a cylinder 2, a wedge F is driven in the wedge driving oblong hole B1 to firmly fix the forms A, A, and the joining state of the mutually joined forms A, A can be reinforced in a series of working for rotating the cylinder 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint between two molds, which is disposed along a protruding corner of a mold formed by joining opposing portions of the mold at a desired angle. More specifically, the joining state of the joined formwork is integrated with the tip of the stay rod projecting from the outer surface of each formwork at the protruding corner of the formwork joined to each other. The present invention relates to a reinforcing metal fitting at a corner of a formwork for firmly reinforcing steel.

[0002]

2. Description of the Related Art Conventionally, in order to construct a reinforced concrete building, a wooden formwork is erected at regular intervals, a reinforcing bar is incorporated in the formwork, and concrete is cast. The construction method is used.

[0003] However, in the above-mentioned formwork method, in the middle part in the longitudinal direction of the formwork, even if concrete is poured between the forms, the formwork is not damaged or deformed, but it is a corner portion of the building. The part corresponding to the corner of the column or beam, that is,
In the part where the formwork is joined to each other, a situation that a part of the formwork is often opened due to the weight or expansion of the concrete put between the formwork, and when such a situation occurs, the construction cannot be continued. But not
A great deal of labor and time is wasted on repairs.

In order to avoid the above situation, as shown in FIG. 7, the left and right arm members 5 are attached to a cylinder 51 having left and right screw nuts provided at both ends.
A left screw portion and a right screw portion formed at the inner ends of the two and 52 are screwed together, and the outer ends of the left and right arm members 52 and 52 are bent in the same direction to form a bent portion. At the outer end of the bent portion, through-holes 53, 53 for fitting to the distal end portions of stay rods B protruding from the outer surface of the form at the protruding corners of the form joined to each other are bent. There has been proposed a reinforcing metal fitting 5 penetrating in a direction corresponding to the direction.

[0005] In order to use the reinforcing metal fittings 5, first, the molds A, A are firmly fixed in a state where they are joined to each other by a conventional method. Thereafter, by holding and rotating the cylindrical body 51 with a spanner or the like, the gap between the through holes 53, 53 of the left and right arm members 52, 52 of the reinforcing metal fitting 5 is adjusted to the form frames A, A joined to each other. At the protruding corners of each of the form rods A, A, which are projected from the outer surface of each of the form rods A, B. The through-holes 53 of the left and right arm members 52 of the reinforcing metal fitting 5 are fitted to connect the stay rods B with the reinforcing metal fitting 5, and then the cylindrical body 51 is rotated to reinforce the reinforcement. Left and right arm members 5 of metal fittings 5
The stay rods B, B are drawn toward the corners of the molds A, A and used by narrowing the interval between the through holes 53, 53 of 2, 52.

However, as described above, the reinforcing metal fittings 5 need to separately perform the work of disposing and fixing the mold frames A, A and the connecting work of the stay rods B, B by the reinforcing metal fittings 5. There is a problem that it is very complicated and burdens an operator.

[0007] In addition to the above-mentioned reinforcing fitting, as such a reinforcing fitting, as shown in FIG.
Left and right wedge-shaped plate pieces 6 oriented at the top and bottom of each of 61
Reinforcing metal fittings 6 integrally provided with 2, 62 have also been proposed.

[0008] The reinforcing bracket 6 has left and right wedge-shaped plate pieces 62,
Form rods A, 62 are joined to each other, and stay rods B projecting from the outer surfaces of the respective form forms A, A at the corners of the form A, Wedge driving penetrating in the vertical direction, penetrating through the tips of the B. Slot B1,
Used by driving into B1.

When the reinforcing bracket 6 is used, the form A,
Although the work of arranging and fixing A and the work of connecting the stay rods B, B by the reinforcing bracket 6 can be performed simultaneously, the interval between the left and right wedge-shaped plate pieces 62, 62 of the reinforcing bracket is fixed at a constant interval. Therefore, the left and right wedge-shaped plate pieces 62,
62 and the long holes B for driving the stay rods B, B
1. It was necessary to match the interval between B1 and the adjustment work was very complicated.

In addition, the right and left wedge-shaped plate pieces 6 of the reinforcing metal member 6 are provided.
2 and 62 are inserted into stay rods B and B1 and B
When driving the wedge-shaped plate pieces 62, the degree of driving of the stay rods B, B into the elongated holes B1, B1 of the stay rods B, B is substantially between the right wedge-shaped plate piece 62 and the left wedge-shaped plate piece 62. It is necessary to proceed with the work so as to be substantially the same, that is, the long holes B for driving the wedges of the stay rods B, B of the left and right wedge-shaped plate pieces 62, 62.
1. It is necessary to perform left and right driving alternately so that the degree of driving into B1 is always substantially constant between the two, and the operation is very complicated.

[0011]

DISCLOSURE OF THE INVENTION The present invention relates to a reinforcing metal fitting which is provided along a protruding corner of a formwork joined to each other to reinforce the joint between the two forms, and more particularly, to a metal fitting joined to each other. Regardless of the distance between the stay rods protruding from the outer surface of each formwork at the protruding corners of the formwork, the work of arranging and fixing the formwork joined together and the work of connecting the stayrods with the reinforcing metal fittings Provided is a reinforcing bracket that can be performed in a series of operations.

[0012]

According to the first aspect of the present invention, the reinforcing metal fittings at the corners of the formwork are arranged along the outer surfaces of the corners of the formwork joined to each other to reinforce the joint between the two forms. The left and right screw portions formed at the inner ends of the left and right arm members respectively in a cylindrical body provided with a left screw nut portion and a right screw nut portion in both end portions. The outer ends of these left and right arm members are bent in the same direction while being screwed together to form a bent portion, and a wide plate piece is provided integrally in both bending portions in the bending direction, and these plate pieces are joined to each other. It is characterized in that a long wedge insertion long hole penetrates in a direction perpendicular to the outer surface of the formwork.

[0013]

In order to use the reinforcing metal fittings at the corners of the form of the present invention, first, a square fitting is provided at the inner corner of the form joined to each other at a desired angle. Are projected through the through holes formed in the respective molds to the outer surface of the mold, and a protruding screw portion of the square fastener has a wedge driving long hole penetrating in a vertical direction at a tip end thereof. Screw holes. Further, a longitudinal rod is attached to the outer surface of each of the form frames joined to each other, and a lateral rod is attached to the outer surface of the vertical member, and a stay rod protruding from between the outer surfaces of the lateral member. The fitting plate is fitted to the protruding front end of the horizontal fluttering material, and the fitting plate is attached to the outer surface of the horizontal flap material.

On the other hand, by rotating the cylindrical body of the reinforcing bracket, the left and right arm members screwed to the left and right ends thereof are advanced and retracted, and a plate provided integrally with the bent portion of the reinforcing bracket. The distance between the long holes for inserting wedges penetrating into the piece is set at the protruding tip of the stay rod protruding from the outer surface of each mold at the corner of the form joined to each other. It is adjusted in advance to match the interval between the long holes.

The wedge-inserting long holes of the left and right arm members of the reinforcing metal fitting are placed on the wedge driving long holes of the stay rod.
After superimposing the inner end of the wedge insertion long hole so as to protrude more toward the formwork than the base end inner surface of the wedge driving long hole, the stay is passed through the wedge insertion long hole of the reinforcing metal fitting. By driving a wedge from above into the long hole for wedge driving of the rod, pulling the stay rod outward, and pressing the contact plate attached to the lateral flap material toward the formwork side by the reaction force, The joined state of the formwork joined together is firmly fixed.

Thereafter, by gripping and rotating the cylindrical body of the reinforcing bracket with a wrench or the like, the left and right arm members screwed to the left and right ends of the cylindrical body so as to be able to advance and retreat are screwed toward the cylindrical body. By moving the stay rod, the distance between the wedge-inserting slots of the plate piece provided integrally with the bent portions of the left and right arm members is reduced, and the inner surface at the tip of the wedge-inserting slot is extended by the stay rod-inserting length of the stay rod. The stay rod is connected to the inner surface of the wedge driven into the hole by the reinforcing bracket.

[0017]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an example of a reinforcing metal fitting at a corner of a mold according to the present invention. As shown in FIGS. 1 and 2, the reinforcing metal fitting 1 at the corner of the form of the present invention comprises a cylindrical body 2 having left and right screw nut portions 21a and 21b provided at both ends thereof, and a left and right screw nut portion. Left and right arm members 3a and 3b, which are threadably engaged with 21a and 21b, and a bent portion 31 formed by bending the left and right arm members 3a and 3b in the same direction.
The wedge insertion slots 32a, 32a are formed through the plate pieces 32b, 32b formed integrally with the base 31.

As shown in FIG. 2, the cylindrical body 2 is formed of a substantially cylindrical body which penetrates in the left-right direction, and has a right screw nut portion 21a on an inner surface on a left end thereof and an inner surface on a right end portion thereof. The left screw nut portion 21b is screwed by a fixed length, and the center portion 22 is formed to have a substantially square cross section, so that the cylinder 2 can be easily and securely gripped and rotated by a spanner or the like. It is configured to be possible.

The left and right arm members 3a and 3b are formed of rods having a fixed length, and can be screwed to the inner end of the left arm member 3a with the right screw nut 21a of the cylinder 2 so as to be able to advance and retreat. A right screw portion 30a is provided at an inner end of the right arm member 3b with a left screw portion 30b which can be screwed into the left screw nut portion 21b of the cylindrical body 2 so as to be able to advance and retreat, respectively, by a fixed length. A turnbuckle is formed by screwing the left and right screw portions 30a and 30b of the left and right arm members 3a and 3b with the left and right screw nut portions 21a and 21b of the cylindrical body 2 so as to be able to advance and retreat.

Therefore, by rotating the cylindrical body 2 of the reinforcing bracket 1 in a certain direction, the left and right arm members 3a and 3b screwed to the left and right ends of the cylindrical body 2 are both screwed into the cylindrical body 2. Then, the wedge insertion slots 32a, 32 of the left and right arm members 3a, 3b are
a can be reduced, while the reinforcing bracket 1
By rotating the cylindrical body 2 in the opposite direction to the above,
The left and right arm members 3a and 3b screwed to the left and right end portions of the cylindrical body 2 are both screwed out of the cylindrical body 2 to remove the left and right arm members 3a and 3b.
The distance between the wedge insertion slots 32a, 32a can be increased.

Each of the left and right arm members 3a and 3b is bent at the same angle backward from the center to the outer end from the center, and bent portions 31 and 31 are formed by the bent outer portions. Further, each bent portion 3 of the left and right arm members 3a, 3b
In 1 and 31, the plate-shaped body 32, 32 of a plane vertically long rectangular shape whose length is longer than the length of the bent portions 31, 31 matches its length direction to the length direction of the bent portions 31, 31. It is provided integrally in a state where it is set.

In addition, the bent portions 3 of the plate-like members 32, 32
Projections protruding outward from the outer ends of 1, 31 have plate-like pieces 32b, 32 having a substantially rectangular flat shape obliquely inward toward the rear.
b are projected, and the plate pieces 32b, 32b are orthogonal to the outer surfaces of the respective molds A, A when the reinforcing metal fittings 1 are arranged along the corners of the molds joined together. The long wedge insertion holes 32a, 32a are formed in the vertical direction.

Next, how to use the above-mentioned reinforcing bracket 1 will be described. First, a description will be given of the structure of the corners of the formwork joined together where the reinforcing metal fittings 1 are arranged. As shown in FIGS. 3 and 4, the corners of the formwork joined to each other are provided with corner fittings A1 at the inner corners of the formwork A, A joined to each other. Are inserted into through holes A2, A2 formed through the inner and outer surfaces of the molds A, A, respectively, and the square fasteners A1 are projected to the outer surface side of the molds A, A. The screw holes of the stay rods B and B are screwed into the respective tip screw portions, and the outer end surface of the large-diameter head A11 provided integrally at both ends of the square fastener A1 and the base of the stay rod B are provided. The form A is sandwiched between the end faces. Although FIGS. 3 and 4 show the case where the molds are joined at right angles to each other, the present invention is not limited to this, and the joining angles of the molds may be any of acute angles and obtuse angles other than right angles.

A long hole B1 for driving a wedge is formed at the tip end of the stay rod B so as to penetrate the upper and lower surfaces. The long hole B1 for driving a wedge is formed with respect to the outer surface of the mold A. It is formed long in the direction perpendicular to the direction. And, on the outer surface of the formwork A, A, a horizontal flutter material C and a vertical flutter material D are respectively arranged,
The wedge driving slot B1 of the stay rod B has a part thereof protruding from between the outer surfaces of the lateral flutter members C, C.

Further, by inserting the through hole E1 of the contact plate E into a protruding tip portion of the stay rod B projecting from the outer surface of the lateral flutter members C, C, the contact plate E is attached to the lateral flutter member C. It is attached to the outer surface of C.

On the other hand, by gripping and rotating the cylindrical body 2 of the reinforcing metal fitting 1 with a spanner or the like, the left and right arm members 3a and 3b screwed to the left and right ends thereof are advanced and retreated to reinforce. The distance between the long wedge insertion holes 32a, 32a penetrating through the plate pieces 32b, 32b provided integrally with the bent portions 31, 31, of the metal fitting 1, is set to the wedge driving long holes B1, B1 of the stay rod B. The wedge insertion slot of the reinforcing metal fitting 1 is adjusted so as to match the interval between them.
32a, 32a are inserted into the long holes B1, B1 for wedge driving of the stay rod B.
Lay on top. At this time, the plate piece 32b of the reinforcing bracket 1
, 32b are inserted into the through holes E1 of the contact plate E, and the inner surfaces of the distal ends of the long holes 32a, 32a of the reinforcing metal fitting 1 are positioned closer to the mold A than the contact plate E. It has been adjusted to: The wedge insertion slot 32 of the reinforcing bracket 1
Through a, a wedge F is driven from above into the wedge driving slot B1 of the stay rod B, and the formwork A is firmly joined at a desired angle (see FIG. 5).

The stay rod B has an elongated hole for driving a wedge.
As the wedge F is driven into B1, the plate F is displaced toward the mold A and the wedge F is also driven deeper into the mold A, but the stay rod B has a long hole for driving the wedge.
A slot 32a for inserting a wedge of the reinforcing fitting 1 superimposed on B1
Is longer in the direction perpendicular to the outer surface of the mold A, and the length direction of the wedge driving slot B1 of the stay rod B matches the length direction of the wedge insertion slot 32a of the reinforcing metal fitting 1. In addition, as described above, the elongated wedge insertion holes 32a of the reinforcing metal fitting 1
Since the inner surface of the tip of 32a is adjusted so as to be located closer to the mold frame A than the aforesaid plate E, the slot 32a for inserting the wedge of the reinforcing metal fitting 1 has the slot for inserting the wedge of the stay rod B. It does not affect the operation of driving the wedge F into B1.

Next, by gripping and rotating the cylindrical body 2 of the reinforcing metal fitting 1 with a spanner or the like, left and right arm members 3a and 3b screwed to the left and right ends of the cylindrical body 2 so as to be able to advance and retreat.
Are screwed into the cylindrical body 2 by the same length to reduce the distance between the wedge insertion slots 32a, 32a of the left and right arm members 3a, 3b. 32a, 3
2a, the inner surface of the tip is brought into contact with the inner surface of the wedge F, the stay rods B, B are connected by the reinforcing metal fitting 1, and the stay rods B, B are connected to the corners of the molds A, A. By pulling in the direction, that is, in the direction of the cylindrical body 2 of the reinforcing bracket 1, an unexpected situation in which the molds A and A warp and open can be prevented (see FIG. 6).

The direction in which the vertical and horizontal fluttering members C and D are tightened by driving the wedge F into the wedge driving slot B1 of the stay rod B is determined by the wedge insertion slot 32a of the reinforcing bracket 1 and When the wedge F is driven into the long wedge driving hole B1 of the stay rod B, the wedge F is aligned with the lengthwise direction of the wedge driving long hole B1 of the stay rod B. Since no force is applied to the inner surface of the elongated hole 32a for inserting the wedge of the reinforcing member 1 and the inner surface of the elongated hole B1 for driving the stay rod B, the reinforcing member 1 and the stay rod B are bent. The wedge F can be smoothly driven into the wedge driving long hole B1 of the stay rod B without exerting an excessive force in the direction, and the fixing operation by the reinforcing bracket 1 has almost no influence on the stay rod B. Without fail.

In the above description, the elongated hole for inserting the wedge of the reinforcing bracket 1 is provided.
32a is a plate piece 32b of a plate-like body 32 provided integrally with the bent portion 31.
Although the case where it penetrated was explained, it is not limited to such a structure, for example, the left and right arm members
31, a plate piece 32b obliquely toward the center toward the rear at the outer end of 31
May be integrally provided, and the plate piece 32b may be provided with a long wedge insertion hole 32a.

[0031]

According to the present invention, there is provided a reinforcing metal fitting for a corner of a formwork provided along the outer surface of a corner of a formwork joined to each other to reinforce the joint between the two forms. The left and right screw portions formed at the inner ends of the left and right arm members are screwed into a cylindrical body having left and right screw nut portions provided at both ends, respectively. The outer end of the arm member is bent in the same direction to form a bent portion, and a wide plate piece is integrally provided in both bending portions in the bending direction. Since the long wedge insertion long hole is formed so as to penetrate in the orthogonal direction, the interval between the wedge insertion long holes of the left and right arm members is joined by rotating the cylinder. Between the long holes for wedge driving penetrating the tip of the stay rod protruding from each outer surface of the formwork After matching the gap, the left and right arm member wedge insertion slots are overlapped with the wedge driving slots of the stay rod, and a wedge is driven into the wedge driving slots from above. A series of operations such as firmly fixing and rotating the cylindrical body to reduce the interval between the wedge insertion slots can reinforce the joined state of the joined formwork.

At this time, the wedge is driven as described above in a state where the long hole for inserting the wedge in the reinforcing metal fitting is aligned with the long hole for driving the wedge at the tip of the stay rod.
The acting force of the wedge always acts in the longitudinal direction of the wedge driving slot and the wedge insertion slot, so that an excessive stress in the direction of deforming the reinforcing bracket or the stay rod is applied to the reinforcing bracket or the stay rod. The wedge can be driven smoothly without generation, and an accurate and strong mold joining structure can be obtained.

Moreover, as described above, the spacing between the elongated holes for inserting the wedges of the reinforcing metal fitting can be immediately adjusted by a simple operation such as rotating the cylindrical body, so that the stay rods arranged at any intervals are provided. Can respond to
Unlike the prior art, there is no need to perform a complicated operation such as previously matching the interval between the wedge-shaped plate pieces attached to the tip of the reinforcing bracket and the interval between the stay rods, and the joining of the formwork joined to each other is not required. The condition can be strongly reinforced.

[Brief description of the drawings]

FIG. 1 is a plan view of a reinforcing metal fitting at a corner of a form of the present invention,

FIG. 2 is a cross-sectional view of a reinforcing metal fitting at the corner of the form of the present invention,

FIG. 3 is a plan view showing a state in which a reinforcing metal fitting at the corner of the form of the present invention is mounted on the corner of the form.

FIG. 4 is a perspective view showing a state in which a reinforcing metal fitting at the corner of the form of the present invention is attached to the corner of the form.

FIG. 5 is a cross-sectional view of a long hole portion for inserting a wedge in a state where the reinforcing metal fitting at the corner of the form of the present invention is mounted on the corner of the form.

FIG. 6 is a cross-sectional view of a long hole portion for inserting a wedge in a state where the reinforcing metal fitting at the corner of the form of the present invention is mounted on the corner of the form.

FIG. 7 is a perspective view showing a state where a reinforcing metal fitting at a corner of a conventional mold is mounted on the corner of the mold.

FIG. 8 is a perspective view showing a state in which a reinforcing metal fitting at a corner of a conventional mold is mounted on the corner of the mold.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Reinforcement metal fitting 2 Cylindrical body 21a Right screw nut part 21b Left screw nut part 3a Left arm member 3b Right arm member 30a Right screw part 30b Left screw part 31 Bending part 32 Plate 32a Wedge insertion slot 32b Plate A Frame B Stay rod F Wedge

Claims (1)

[Claims] 1. A reinforcing metal fitting disposed along an outer surface of a protruding corner of a formwork joined to each other to reinforce the joint between the two forms, wherein a left screw nut part and a right screw nut part are provided at both ends. The left screw part and the right screw part respectively formed at the inner ends of the left and right arm members are screwed into the cylindrical body provided with each of them, and the outer ends of these left and right arm members are bent in the same direction. A bent portion is formed, a wide plate piece is provided integrally in both bending portions in the bending direction, and a long wedge insertion long hole is formed in these plate pieces in a direction perpendicular to the outer surface of the formwork joined to each other. Reinforcing metal fittings at the corners of the formwork.