JPH085779Y2 - Retaining wall block corner formwork - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a mold for molding a block used in a corner portion of a retaining wall constructed by an L-shaped block or a tension block.

[0002]

2. Description of the Related Art As shown in FIG. 3, a mold for molding a block 1 (see FIG. 4) used in a corner portion of a retaining wall has two inner plates 2 and 2 which are angled by an inner hinge 3. The inner frame 4 and the two outer plates 5 and 5 connected to each other freely adjust the outer hinge 6.
And an outer frame 7 which is connected to adjust the angle freely, are fixed to a base 9 with a gap 8 corresponding to the wall thickness of the block 1 therebetween and fixed to both sides, and a small plate 12 is fixed to both sides thereof. This is a structure for forming a cavity 13 for block molding.

[0003]

In the corner formwork of the conventional structure, the inner frame 4 and the outer frame 7 have a hinge structure in order to freely set the corner angle of the block 1 to be molded. However, if the outer frame 7 has a structure in which the angle can be adjusted by the outer hinge 6, a gap 15 is formed between the opposite sides 14, 14 of the two outer plates 5, 5 when the angle is made obtuse, and this gap is formed. A flexible member 16 for filling must be provided between the two 14, 14.

However, when the flexible member 16 is too soft, it is deformed by the pressure of concrete and the corner portion cannot be accurately formed, and when it is too hard, the amount of deformation is small and it is not possible to cope with a wide range of angle changes. was there.

The dimension of the corner block 1 is set as the distance W from the tip of the corner of the outer surface 17 of the block to the inside of the edge plate 12, as shown in FIG. In the formwork in which the corner angle of the block can be adjusted by the hinge structure, the width dimension W varies each time the angle is changed, regardless of whether the edge plate 12 is fixed to the outer frame 7 side or the inner frame 4 side. Therefore, there is a problem that the fixing position of the edge plate 12 has to be changed one by one.

Further, the hinge structure of the inner frame 4 in the conventional mold has two inner plates 2 and 2 when the opening angle is changed.
There is a problem that it is troublesome to change the opening angle because it is necessary to move both of them, or the inner frame needs to be disassembled and then reassembled, or the disassembly is troublesome.

The present invention has been made to solve the above problems. A first object of the present invention is to prevent a gap from being formed between the opposite sides of the outer plate even when the opening angle of the outer frame is changed. In addition, it is to provide a mold that can easily change the opening angle of the inner frame and disassemble the inner frame. A second object of the present invention is to provide a mold that is molded even when the opening angle of the outer frame is changed. It is to provide a formwork in which the width dimension W does not change.

[0008]

The outer frame 7 of the corner formwork of the present invention is provided with two outer plates 5 and 5 whose open angles are adjustable by an outer hinge 6, and the inner frame 4 is A fixed inner plate 2a fixed to the base 9 and a movable inner plate 2b swingably connected to the fixed inner plate 2 by vertical pins 28 are provided.

An inner plate 32 is provided on the inner surface of the outer plate 5 so as to be movable with respect to the outer plate 5 in a direction intersecting with the axis of the outer hinge 6, and the hinge-side end of the fixed inner plate 2a is provided. ,
An arc 24 bent in a partially cylindrical shape when seen in a plan view is provided, and an end of the movable inner side plate 2b on the hinge side is provided with an arc groove 26 that is in sliding contact with the arc 24. And fixed inner plate 2
The a and the movable inner plate 2b are connected to each other by a pin 28 erected at the center of the arc 24 with its tip open, and a bracket 30 pivotally attached to the pin 28.

The moving structure of the inner plate 32 is such that the bolt hole 38 provided in the outer plate 5 for fixing the inner plate 32 is a long hole so that the inner plate 32 can move along the long hole.
The interior plate 32 may be fixed by fastening bolts 39 inserted into the bolt holes 38.

The structure for achieving the second object is achieved by fixing the fore-edge plate 12 to the interior plate 32.

[0012]

In the formwork having the above structure, the movable inner plate 2b is rotated around the pin 28 while the fixed inner plate 2a is fixed and fixed to the base 9 at a desired opening angle, and the outer plates 5 are opened from each other. The corner is adjusted according to the opening angle of the inner frame 4, and then the inner plate 32 is pushed toward the outer hinge 6 to abut the opposing sides 40 of the two inner plates 32, and then the inner plate 32 is moved to the outer plate. Assembled at the desired opening angle by fixing to 5.

The inner frame 4 can be easily disassembled by lifting the movable inner plate 2b upward with a crane or the like.

On the opposite sides 40 of the interior plates to be butted,
If necessary, a sealing rubber 41 is provided along the side thereof so that the abutment portion is completely closed.

According to the formwork of this invention, the interior plate 32
Since it is always necessary, it seems that it is more expensive and economically disadvantageous than the conventional formwork, but in reality almost all blocks for retaining walls have decorative patterns on the surface. It is a block, and the decorative sheet 35 is indispensable for providing a decorative pattern. Since this decorative sheet is fixed to the outer plate 5 in a state of being stuck to an iron plate, it is used as it is as the interior plate 32 of the present invention. It is possible to raise the cost of the formwork with little risk.

As described above, the inner plate 32 is the outer plate 5
Since the facing sides 40 are fixed in a state of abutting each other regardless of the size of the opening angle, if the edge plate 12 is fixed to the interior plate 32, the edge plate 12 also moves at the same time as the interior plate 32. The width W of the molded block is always constant.

[0017]

1 and 2 show an embodiment of the present invention. FIG. 1 is a perspective view of a corner mold and FIG. 2 is an enlarged sectional view of a connecting portion of an outer frame. The inner frame 4 is composed of a fixed inner side plate 2a fixed to the base 9 and a movable inner side plate 2b which is swingable around a connecting portion with the fixed inner side plate. An arc 24 bent in a partially circular shape when seen in a plan view is provided at an end of the fixed inner plate 2a on the movable inner plate 2b side, and a horizontal reinforcing plate 23 is provided on the back surface thereof. On the other hand, the end of the movable inner side plate 2b on the fixed inner side plate 2a side has the arc 24
A circular arc groove 26 is formed in sliding contact with the circular arc groove 26. The circular arc groove 26 and the circular arc 24 are fixed to the base 9 by bolts 27 in a state of being in close contact with each other.

Guarantees the close contact between the arc 24 and the arc groove 26,
In addition, in order to facilitate the angle adjustment work performed by swinging the movable inner plate 2b, a pin 28 that is aligned with the central axis P of the arc 24 is erected on the reinforcing plate 23 of the fixed inner plate. Horizontal reinforcing plate 2 provided on the back surface of 2b
The bracket 3 extending around the end of the circular arc 24 in 9
0 is provided, and the tip of the bracket 30 and the pin 2
8 and 8 are pivotally connected. Pin 28 of movable inner plate 2b
The peripheral opening angle can be read by the scale plate 31 fixed to the base 9.

The opening angle of the inner frame 4 is changed by changing the movable inner plate 2b.
The bolt 27 that fixes the movable inner plate 2b to the base 9 is removed, the movable inner plate 2b is rotated around the pin 28 to adjust the movable plate 2b to a predetermined opening angle with the scale plate 31, and the bolt 27 again fixes the movable inner plate 2b to the base 9. It should be fixed to. Further, since the upper end of the pin 28 is released, the bolt 27 is removed and the movable inner plate 2b is lifted up by a crane or the like,
The fixed inner side plate 2a and the movable inner side plate 2b can be easily separated, and the mold can be easily cleaned or repaired.

As shown in FIG. 2, the outer frame 7 is formed by connecting two outer plates 5 to each other with outer hinges 6 so that their opening angles can be adjusted, and an inner plate 32 is formed on the inner surface of the outer plate 5. Are movably provided in a horizontal direction intersecting with the outer hinge 6. The interior plate 32 is made by sticking a urethane decorative sheet 35 to the inside of the frame 33 of an iron plate 34 having a frame 33 on the periphery, and a mounting seat 37 having a tap hole 36 is fixed to the back surface thereof by welding. ing. An elongated hole 38 that is long in the horizontal direction is provided at a portion of the outer plate 5 that faces the tap hole 36. A bolt 39 that is inserted into the elongated hole is screwed into the tap hole 36 so that the inner plate 32 is attached to the outer plate 5. Fastened and fixed. The edge plate 12 is fixed to the outer end of the interior plate 32, and the edge plate 12 also moves as the makeup 32 moves.

The opening angle of the outer frame 7 is adjusted with the bolts 39 fixing the inner plate 32 loosened.
After setting the opening angle of the
Are brought into contact with each other, and in this state, the inner plate 32 is fixed with the bolt 39.

When there is a change in the opening angle of the mold shown in FIG. 1, first, the movable inner plate 2b is swung around the pin 28 according to the above-mentioned procedure to change the opening angle of the inner frame 4 so that it can be moved. The inner plate 2b is fixed to the base 9, and the outer frame 7 is attached at the same opening angle.
The outer frame 7 is fixed to the base 9, and finally the inner plate 32 is moved toward the outer hinge 6 so that the opposite sides 40 of the two inner plates 32 are butted against each other, and the inner plate 32 is fixed with the bolt 39. 32
To fix.

1 and 2 show a mold for molding the corner portion of a simple plate-shaped tension block in order to facilitate understanding of the structure of the present invention. It goes without saying that the structure of the present invention can be adopted as a mold for molding a corner portion, and if the structure of the portion for molding the backing plate 10 (see FIG. 4) at this time is the same as the conventional structure, it can be used. Good.

[0024]

[Effect of the Invention] The corner formwork of the present invention is always fixed with the opposite sides of the interior plates abutting each other regardless of the opening angle of the outer plate, so the opening angle of the outer frame can be changed. In addition, no gap is formed in the connecting portion of the two outer plates, and it is not necessary to interpose a flexible member between the outer plates 5. Further, the opening angle of the inner frame can be easily adjusted, and the inner frame can be easily disassembled.

Further, by fixing the edge plate for determining the width dimension of the block to the interior plate, even if the opening angle of the outer frame is changed, from the contact portion of the two interior plates to each edge plate. The distance is always constant, the width of the block does not change, and there is no need to change the position of the edge plate.

[Brief description of drawings]

FIG. 1 is a perspective view of an essential part of a corner formwork of the present invention.

FIG. 2 is an enlarged cross-sectional view of a connecting portion of an outer plate.

FIG. 3 is a plan view of a conventional corner formwork for an L-shaped block.

FIG. 4 is a perspective view of an L-shaped block for corners.

[Explanation of symbols]

 2, 2a, 2b Inner plate 3 Inner hinge 4 Inner frame 5 Outer plate 6 Outer hinge 7 Outer frame 8 Gap 9 Base 12 Small plate 32 Interior plate 38 Long hole 39 Bolt

Claims (2)

[Scope of utility model registration request] 1. An outer frame (7) in which two outer plates (5) are connected by an outer hinge (6) so that the angle can be adjusted, and two inner plates (2).
In a corner form of a retaining wall block having an inner frame (4) in which a and 2b) are connected by an inner hinge (3) so that the angle can be adjusted, the inner frame (4) is a fixed inner side fixed to a base (9). A plate (2a) and a movable inner plate (2b) swingably connected to the fixed inner plate by vertical pins (28) are provided.
An inner plate (32) is mounted on the inner surface of each of the outer plates (5) so as to be movable in the direction intersecting the axis of the outer hinge (6) with respect to the outer plate (5). (2a)
The hinge-side end of the movable inner plate (2b) has a circular arc (24) bent in a partially cylindrical shape when seen in a plan view, and the hinge-side end of the movable inner plate (2b) has an arc groove (26) slidably contacting the circular arc (24). ), The fixed inner plate (2a) and the movable inner plate (2b)
Is a pin (28) which is erected with the tip open at the center of the arc (24) and a bracket (3) pivotally attached to the pin (28).
0) and the corner formwork of the retaining wall block, characterized in that they are connected via. 2. A corner formwork for a retaining wall block according to claim 1, wherein a small edge plate (12) is fixed to the interior plate (32).