JP2939152B2 - Formwork for corner block molding of L-shaped retaining wall - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mold for forming a corner block (hereinafter, abbreviated as "block") made of precast concrete in an L-shaped retaining wall block (hereinafter, abbreviated as "form"). In particular, the present invention relates to a corner block forming formwork of an L-shaped retaining wall capable of forming blocks corresponding to various corner angles with one forming formwork.

[0002]

2. Description of the Related Art Generally, in the construction of a corner portion in the construction of a retaining wall using an L-shaped retaining wall block, a method of cutting each block end portion at a predetermined angle and abutting them at the corner angle to connect them. Was taken.

[0003] However, due to the problems of such a method, such as securing strength and complicated and labor-saving production of a forming mold for forming a block at each corner angle, conventionally, There have been proposed molds capable of variably setting various corner angles for the purpose of molding blocks corresponding to various corner angles with one molding mold.

For example, there have been proposed (1) Japanese Utility Model Publication No. 63-50085 (hereinafter abbreviated as invention), and (2) Japanese Utility Model Publication No. 4-15445 (hereinafter abbreviated as invention).

[0005] The contents of these inventions are referred to the official gazette, and detailed description thereof is omitted here.

[0006]

First, as pointed out in the invention, as described in the invention, there is an inconvenience of replacing a cover plate having an end plate with each set corner angle. Was.

On the other hand, as a problem of the present invention, it is not necessary to replace the cover plate, but a partition plate for the same purpose as the end plate of the above-mentioned invention is also adjusted to the set corner angle similarly to the invention. There was inconvenience to change every time. Therefore, it was necessary to prepare various things.

Further, as the invention and common to the inventions, a center post (invention) or a plurality of columns (inventions) (hereinafter abbreviated as "columns, etc.") on a base.
It is an essential component to fix vertically (referred to as “standing”).

However, providing such a column has the advantage that the center is fixed and can be easily operated when the pair of inner forming frames for setting the bending angle (or opening angle) corresponding to the corner angle is moved. On the other hand, the following disadvantages also existed.

[0010] That is, since it is necessary to always maintain the column and the like vertically, the mounting strength must be increased and the column must be firmly mounted. On the other hand, there is a problem that it is difficult to maintain the verticality due to repeated use for many years. When the support was not perpendicular, the movement of the inner forming frame was hindered. On the contrary, there is a problem that the correction is difficult because the mounting is hard.

The setting of the corner angle of the block is as follows.
It is usually set in 5 ° to 10 ° units instead of the precise number of minutes, and there is little demand for moving the inner forming frame linearly (continuously). Therefore, when moving it more linearly, the pillars that are effective are
There was little need for it. Rather, it is not only possible to make the whole structure more robust, but also to make the above-mentioned correction and maintenance easier than to make the pillars bear the shape-retaining and supporting forces of the inner formwork. Can be done.

Further, the size of such a block tends to be gradually increased (for example, 2 m in four directions), and the size of the molding frame naturally becomes larger. Therefore, in the movement (for example, moving from the formwork factory to the molding factory), the pillars and the like are usually assembled at the stage of shipment in order to secure the mounting strength, but the transportation is not easy because it is usual.

[0013]

SUMMARY OF THE INVENTION The present invention has been made in view of such a problem. The purpose of the present invention is to form each constituent frame independently and to assemble them at the time of use. L which can form a molding form corresponding to each corner angle of the above, and can facilitate maintenance and maintenance by simplifying disassembly after use.
A mold for forming a corner block of a mold retaining wall is provided.

[0014]

In order to achieve the above object, the present invention is configured as follows. That is, it has a vertical outer wall plate (10) that forms the outer wall surface (80) of the block (8), and ends (1) along the vertical direction of each other.
1) The members can be connected to each other with a flexible material (12) and slid along a guide with a desired opening angle α (= corner angle).
And fixed on the base (7)
A pair of left and right outer forming frames (1a, 1b), a vertical inner wall plate (20) juxtaposed with the vertical outer wall plate (10) of the outer forming frame (1) at regular intervals, and an outer forming frame from the upper end thereof A horizontal plate (2) extending substantially horizontally in the opposite direction to (1)
Vertical 1) and consists, and each other of the vertical inner wall plate (20)
When the ends (23) along the vertical direction are abutted and connected together,
To be slidable along the guide and detachable
A pair of left and right inner forming frames (2a, 2b) standing and fixed on a stand (7), and a vertical portion of the inner forming frames (2a, 2b).
The inner wall plate (20) and the hanging of the outer forming frames (1a, 1b)
A bottom molding frame (3) which is detachably and suitably arranged on a bottom side of a space (S) partitioned from the outer wall plate (10) ;
Closure plate (4 wherein in the detachable to each vicinity of wings opening space (S) is arranged fixed to close the both said wings opening
0) and an upright plate (4) to be placed upright on the horizontal plate (21).
1) a substantially inverted L-shaped fore-edge molding frame (4) comprising:
Horizontal plates (21a, 2a) of a pair of inner forming frames (2a, 2b)
1b) It is bridged over and arranged on the left and right edge forming frames (4).
Small while abutting the horizontal tip (43) of the standing plate (41)
Make it possible to slide according to the movement of the mouth forming frame (4)
The attached end molding frame (5) and the pair of horizontal plates (2
1a, 21b) and a pair of horizontal plates
(21a, 21b) can cover various open spaces
And a connecting lid plate (6) formed in a size as large as possible.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a specific embodiment of a mold for forming a corner block of an L-shaped retaining wall ("mold") according to the present invention will be described in detail with reference to the drawings.

FIG. 1 is a perspective view showing the entirety of the present embodiment except for a connecting cover plate, FIG. 2 is a plan view showing the entirety of the present embodiment, and FIG. 3 is viewed from an arrow A in FIG. FIG. 4 is a side view of the present embodiment, and FIG. 4 is a sectional view taken along line BB in FIG. FIG. 5 is a perspective view showing a block formed by setting the form of the present embodiment to an opening angle of 90 °.

In the formwork of the present embodiment, the bottom forming section of the block 8 is arranged so as to be located above the formwork.
That is, the positional relationship of the block 8 immediately after the mold release is a state where the top and bottom are opposite to the state shown in FIG.

First, the main components of the mold of the embodiment of the present invention are an outer molding frame 1, an inner molding frame 2, a bottom molding frame 3, a fore molding frame 4, an end molding frame 5, a connecting lid plate 6, and these components. And a base 7 for mounting and holding them. These will be described in order.

First, a vertical outer wall plate 10 for forming the outer wall 80 of the block 8 is disposed on one side of the outer forming frame 1, and reinforcing ribs (not shown) are provided at appropriate intervals on the back side. It has a thin box-shaped frame attached.
The outer molding frame 1 is a pair (a, b) of two right and left (on the figure)
And opposing ends 11a, 11 along the vertical direction.
As shown in FIG. 6 in which the dashed circle C in FIG. 2 is shown in an enlarged cross-sectional view, b is connected over the entire length of the end by a flexible member 12 which can be bent. The flexible member 12 may be made of a resin material such as urethane rubber or a metal material as long as it is bendable.

A pair of left and right outer molding frames 1a, 1b
Is moved along the guide groove 70 on the base 7 to bend the flexible member 12 to a desired opening angle α.
The vertical outer wall plate 10 is vertically erected and fixed. The fixing of the outer molding frame 1 is made detachable by fastening means 13 arranged at the bottom.

A plurality of engagement guides 14 each having a substantially L-shape in plan view project from a plurality of positions (three positions in this embodiment) of the ends 11a and 11b. They are connected by engagement of a pin 16 that slides in the groove 15. This is to prevent a tensile force or a compressive force other than bending from acting on the flexible member 12 when the outer molding frame 1 moves.

Here, the angle formed by the pair of outer molding frames 1a and 1b due to the bending is defined herein as the "opening angle" of the mold, which is the corner angle α in the block.
Corresponds to

Next, the inner molding frame 2 is
And the vertical inner wall plate 20 which is juxtaposed with the vertical outer wall plate 10 at a predetermined distance m (this distance is the thickness of the side wall 81 of the block 8), and substantially horizontally in a direction opposite to the outer forming frame 1 from the upper end thereof. And an extended horizontal plate 21 to form a substantially inverted L-shape.

A corner 22 is formed continuously at the connection between the vertical inner wall plate 20 and the horizontal plate 21. With this configuration, the vertical inner wall plate 20 forms the inner wall surface 82 of the block 8, the horizontal plate 21 forms the bottom inner surface 83 of the block 8, and the corner 22 forms the corner slope 84 of the block 8.

The inner molding frame 2 is constituted by a pair of left and right two parts, and their vertical ends 23a and 23b are abutted and connected to each other. In this connection means, as shown in FIG. 7, which is an enlarged plan view of a dashed circle D in FIG. 4, a columnar engaging projection 24 is attached over the entire length of one end 23a, and the other end is provided. A plurality of (three in this embodiment) arcuate engagement recesses 25 that match the curvature of the cylinder are attached to the end 23b. Tongue-shaped engaging pieces 26a and 26b are formed to project from a position inside the end 23, and the engaging piece 26 is formed with a long hole 26h. Further, a connecting member 27 which is slidably engaged with and fixed in the elongated hole 26h is attached.

At the lower end of the cylindrical engaging projection 24, as shown in FIG. 8, which is an enlarged longitudinal sectional view of a broken circle E in FIG. Are formed. The circular convex portion 28 fits with a circular concave portion 72 formed on a positioning plate 71 fixed at a predetermined position on the base 7.

Further, at the upper end of the cylindrical engaging projection 24, a broken circle F in FIG.
As shown in FIG. 7, a circular concave portion 29 having a truncated cone shape is formed. The circular concave portion 29 is fitted with a fitting convex portion 60 of the connecting lid plate 6 described later.

Each horizontal plate 21a of the inner forming frame 2
21b has an opening angle α of 90 ° as shown (FIG. 2).
Are formed in a substantially right triangular shape having a center angle of about 45 ° from the end portion 23 so that they come into contact with each other at the time. And
On the upper surface thereof, a long hole 21h penetrating in an arc shape for fixing a later-described connecting cover plate 6 at an appropriate position is formed.

Next, the bottom molding frame 3 has a rectangular cross section and a predetermined height. The planar shape is a shape that conforms to the space S defined by the vertical outer wall plate 10 of the outer molding frame 1 and the vertical inner wall plate 20 of the inner molding frame 2, and the base 7 on the bottom side of the space S is formed. It is detachably mounted and fixed on the top. The bottom molding frames 3 are prepared according to the shape of the space S according to the set opening angle α. Further, by adjusting the height, the height of the side wall 81 of the block 8 can be set in various ways.

Next, the fore-edge forming frame 4 is disposed near each of the left and right wings of the space S, and a rectangular parallelepiped closing plate 40 for closing the open portions of the space S on both wings. At a substantially right angle to this, the horizontal plate 21 of the inner forming frame 2
And an upright plate 41 of a constant height extending along. The upper end 42 of the standing plate 41 is formed so as to substantially coincide with the upper end 17 of the outer molding frame 1. That is, the closing plate 40 and the upright plate 41 are configured in a substantially inverted L shape, and are in a positional relationship perpendicular to the vertical outer wall plate 10 of the outer forming frame 1.

The fore-molded frame 4 is detachably attached to the outer and inner molded frames 1 and 2 by fastening means such as bolts and nuts. With such installation,
The closing plate 40 forms the side end surface 85 of the side wall 81 of the block 8, and the standing plate 41 forms the bottom end surface 86. Further, the width of the side wall 81 of the block 8 and the size of the bottom portion are determined by the mounting position of the fore-edge molding frame 4 in the space S.

Next, the end forming frame 5 has a long box shape having an end forming plate 50 having the same height as the standing plate 41. The end forming frame 5 is configured such that the end forming plate 50 is brought into contact with the horizontal front end 43 of the fore-edge forming frame 4, and the counter-engaging portion (2
It is arranged so as to bridge over the horizontal plate on the 4, 25) side. The end forming frame 5 is attached so as to be able to move horizontally on the horizontal plate 21 in the radial direction (arrow x) around the engaging portion.

The end forming plate 50 of the end forming frame 5 forms the square-cut end surface 87 at the bottom of the block 8. Lastly, the connecting lid plate 6 has a polygonal plate shape in plan view as shown in FIG. 10 (see FIG. 10), and is arranged so as to bridge the horizontal plates 21 a and 21 b of the pair of inner forming frames 2. ing. On the lower surface of the connecting lid side end of the connecting lid plate 6, a truncated conical fitting convex portion 60 is formed so as to protrude. The horizontal plate 2 of the inner forming frame 2 is provided on the surface of the connecting lid plate 6.
A plurality of through-holes 61 corresponding to the long holes 21h opened in 1 are opened.

Thus, the fitting projection 60 of the connecting lid plate 6 is formed.
Is fitted to the circular concave portion 29 of the connecting portion of the inner forming frame 2, and the connecting cover plate 6 and the horizontal plate 2 are tightened by aligning the through hole 61 with the elongated hole 21 h and fastening the screw 62.
1 is connected and fixed.

[0035]

The operation of the present embodiment operates as follows with the above construction. First, while moving the pair of outer forming frames 1a and 1b on the base 7 along the guide grooves 70, the flexible member 12 is bent to set a target opening angle α. After such setting, the outer molding frame 1 is fixed on the base 7 by fastening of the fastening means 13.

Next, on the base 7 below the vertical outer wall plate 10, the opening angle α and the height required for the height of the side wall 81 of the block 8 are matched with the thickness of the side wall 81. T width m
The bottom molding frame 3 having the shape is placed and fixed.

Next, the pair of inner forming frames 2a and 2b are placed on the base 7 so as to be aligned along the pair of outer forming frames 1a and 1b, and the opening angle α is set to a similar value. The engaging concave portion 24 and the engaging convex portion 25 are brought into contact with each other, and the engaging pieces 26a and 26b are fastened by the connecting member 27 and fixed to the base 7 by the fastening means 73.

Further, the fore-molded frames 4a, 4b are respectively arranged at the open ends of the wings of the space S, and are fixed with fasteners such as bolts and nuts. The width of the side wall 81 of the block 8 is set at the position where the fore-edge molding frame 4 is attached.

Finally, the end molding frame 5 is moved so as to abut on the horizontal front end 43 of the fore-mold molding frame 4, and is fastened and fixed by the fastening means 51 at this position. After assembling, a pair of outer molding frames 1a, 1b, a pair of inner molding frames 2a, 2b,
Concrete liquid is poured into a section S surrounded by the left and right fore-edge molding frames 4 and 4 and the end molding frame 5 to form a desired block 8.

FIGS. 1 and 2 show a state in which the opening angle α is set to 90 °. When the opening angle α is set to 110 °, the state is as shown in FIG.

[0041]

With the above configuration, the present invention has the following effects. The pair of outer molding frame and inner molding frame are molded independently from each other on the left and right sides to stand and hold on the base, and
Fixed to the base by moving according to the guide
Continuous opening angle of each area without providing upright columns
Can be set to be variable.
Blocks with various corner angles that are optimally suited to the construction site can be formed.

Moreover, it is independent, there is an exploded after use easily, and the effect of that Ru can to facilitate service and maintenance. In addition, a pair of horizontal plates
Because the connecting lid plate is placed and connected so as to cover
It is possible to correspond to the opening angle of various horizontal plates with the connecting lid plate.
Wear. In addition, an end molding frame that can be moved horizontally
The horizontal plate is moved according to the movement of the horizontal plate.
By contacting the tip, the end molding frame
There is an excellent advantage that there is no need to provide many separate units.

Furthermore, since the support columns and the like are not fixed on the base, there is an effect that repair and replacement for each of the independent forming frames can be performed easily and easily. Also,
The ease of assembling and disassembly is convenient for carrying and moving.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the entirety of the present embodiment except for a connecting lid plate.

FIG. 2 is a plan view showing the entire embodiment.

FIG. 3 is a side view of the present embodiment viewed from an arrow A in FIG. 2;

FIG. 4 is a sectional view taken along line BB in FIG. 2;

FIG. 5 is a perspective view showing a block formed by setting the form of the present embodiment to a corner angle of 90 °.

FIG. 6 is an enlarged cross-sectional view showing a dashed circle portion C in FIG. 2;

FIG. 7 is an enlarged plan view showing a broken circle D in FIG. 4;

FIG. 8 is an enlarged longitudinal sectional view of a dashed circle portion E in FIG. 4;

FIG. 9 is an enlarged longitudinal sectional view of a broken circle F in FIG. 4;

FIG. 10 is a plan view and a front view showing a connecting lid plate of the present embodiment;
FIG.

FIG. 11 is a plan view when the opening angle of the mold of the present embodiment is set to 110 °.

[Explanation of symbols]

1a, 1b: Outside forming frame 10: Vertical outer wall plate 11: End
12 ... flexible member 13 ... fastening means 14 ... engagement guide
15 groove 16 pin 17 upper end 2a, 2b inner forming frame 20 vertical inner wall plate 21 horizontal plate
22 ... corner 23 ... end 24 ... engagement convex
25 ... engaging recess 26 ... engaging piece 27 ... connecting tool
28: circular convex portion 29: circular concave portion 3: bottom molding frame 4a, 4b: small molding frame 40: closing plate 41: standing plate
42 ... upper end 43 ... horizontal tip 5 ... end forming frame 50 ... end forming plate 51 ... fastening means 6 ... connecting lid plate 60 ... fitting Convex part 61: Through-hole
62 Screw 7 Base 70 Guide groove 71 Positioning board
72: circular recess 73: fastening means 8: block 80: outer wall surface 81: side wall
82 ... inner wall surface 83 ... bottom inner surface 84 ... corner slope
85 ... side end face 86 ... bottom end face 87 ... square cut end face

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-7-156124 (JP, A) JP-A 63-130205 (JP, U) JP-A 61-120507 (JP, U) JP-A 1-120507 156907 (JP, U) Japanese Utility Model Hei 3-66705 (JP, U) Japanese Utility Model Utility Model 4-126815 (JP, U) Japanese Utility Model Utility Model 4-100812 (JP, U) (58) Fields surveyed (Int. ⁶ , DB name) B28B 7/04 B28B 7/02

Claims (3)

(57) [Claims] 1. A vertical outer wall plate (10) forming an outer wall surface (80) of a block (8) and perpendicular to each other.
Along end it was what (11) with a connection to the desired opening angle alpha (= corner angle) of a flexible material (12), the guide
Base (7) that is configured to be slidable and removable along the base
An outer molding frame (1a, 1a,
1b), a vertical inner wall plate (20) which is juxtaposed with the vertical outer wall plate (10) of the outer forming frame (1) at a predetermined interval, and substantially horizontally from the upper end in a direction opposite to the outer forming frame (1). extending horizontal plate (21) consists, and each other of the vertical inner wall plate (2
The ends (23) along the vertical direction of ( 0) are abutted and connected to each other.
As well as slidably and detachably along the guide.
And a pair of left and right inner forming frames (2a, 2b) standing and fixed on a base (7), and a vertical inner wall plate (20) of the inner forming frames (2a, 2b). ,
A bottom molding frame (3) detachably fitted and disposed on a bottom side of a space (S) defined by the outer molding frames (1a, 1b) and the vertical outer wall plate (10); and the space (S). the arrangement is fixed in detachable to each vicinity of wings opening, closing plate for closing the both said wings opening (4
0) and an upright plate (4) to be placed upright on the horizontal plate (21).
1), and a horizontal plate (21) of the pair of inner forming frames (2a, 2b).
a, 21b) overlaid on the left and right edge forming frames
(4) abuts on the horizontal tip (43) of the standing plate (41)
Sliding movement is possible while moving the fore-molding frame (4)
And an end forming frame (5) attached in a manner to be mounted on the pair of horizontal plates (21a, 21b).
And a variety of opening of a pair of horizontal plates (21a, 21b)
A connecting lid plate (6) formed to have a size capable of covering a space; and a corner block forming form of an L-shaped retaining wall, comprising: 2. The vertical shape of a pair of inner forming frames (2a, 2b).
In the connection of the inner wall plate (20), a columnar engaging projection (2) along one end (23a) is provided.
4. The mold for forming a corner block of an L-shaped retaining wall according to claim 1, wherein the other end (23b) is abutted and connected as an arcuate engaging recess (25). . 3. A pair of outer molding frames (1a, 1a,
1b) is set by engaging and moving a guide groove (70) formed on the base (7), and a pair of inner forming frames (2a) by a guide following the setting. , 2
The setting of the opening angle α in b) is performed by separately engaging the left and right sides with the guide grooves (70) formed on the base (70) and moving them. The mold for forming a corner block of an L-shaped retaining wall according to claim 1 or 2.