JP2000176921A - Concrete form for forming pattern - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a concrete form for forming a pattern, by which a plurality of forms, each made of a unit block body and can be arranged in combination at a proper arrangement position without complicating an arrangement work and, at the same time, no unnatural joint line is formed on the surface of a retaining wall. SOLUTION: By arranging unit block bodies 1 under the state that their edge side parts are abutted against one another with no gap between them with a certain directionality since an upper and a lower unit block bodies 1 adjacent to each other shift horizontally, the edge side parts of the unit block bodies 1 adjacent to each other not only do not cross nearly crosswise but also the joint line can be made complicated through the combination of simple- shaped unit block bodies, resulting in allowing to give a natural impression in appearance. Further, since no directing properties changes even when the unit block body 1 is turned leftside right or upside down, no previous determination of the arrangement positions and directions of the individual unit block body 1 is unnecessary and the arrangements of the unit block bodies can be easily executed at site.

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 forming a pattern, and more particularly to a concrete formwork for retaining walls such as seawalls and slopes.
The present invention relates to a pattern-forming concrete formwork used for forming a pattern such as a valley pattern.

[0002]

2. Description of the Related Art Conventionally, when constructing a river revetment retaining wall, a residential land development retaining wall, a steep slope retaining wall, or the like, a masonry pattern or the like is formed on the surface of the concrete retaining wall so as not to emphasize the inorganic concrete ground surface. Various concrete forms for forming patterns have been proposed.

In these proposals, a concrete retaining wall is constructed by disposing the formwork, and a random pile pattern of natural stones is formed on the surface of the retaining wall. For example, Utility Model Registration No. 2523973 As shown in the official gazette, the unit block body of the mold is not square or rectangular, but has a notch formed in a corner portion. But a square,
And a shape in which two adjacent small squares having a half length of the square sides and two vertices sharing a vertex between the adjacent sides are provided on adjacent sides of the square. A mold using a unit block body formed in a valley-like contour has been proposed.

[0004]

However, when constructing a retaining wall by combining and arranging these conventional concrete molds for forming a pattern, the concrete block is formed by adjacent side edges of the unit block body of the mold. The joint lines were formed linearly, and the appearance of the masonry was artificial and monotonous in appearance.

In order to prevent the joint lines from appearing artificially and unnaturally, the joint lines may be composed of a plurality of types of unit blocks having different sizes and shapes, or if the shapes of the unit blocks are complicated, individual unit blocks may be previously set. There is a problem that the arrangement position and the direction of the block body must be determined, and the arrangement work is troublesome.

Therefore, the present invention focuses on the above-mentioned problems, and does not complicate the work of arranging the unit blocks and does not form unnatural joint lines on the surface of the retaining wall. It is an object to provide a concrete formwork for forming.

[0007]

In order to solve the above-mentioned problems, a concrete formwork for forming a pattern according to the present invention is used for forming a pattern on a surface of a concrete retaining wall. A concrete formwork, wherein the formwork comprises a plurality of unit blocks each having a concave portion forming a pattern on a surface, and these unit blocks have two identical shapes having a long side and a short side. Each of the unit rectangles is vertically and horizontally abutted to form a substantially L-shaped shape, and the two L-shaped bases are abutted with each other. This unit block body is point-symmetric with respect to its center point. And is formed so as not to be line-symmetric with respect to an arbitrary straight line passing through the center point. According to this feature, if unit blocks having the same shape are arranged with a fixed direction while abutting each other with no gap between the edges, the adjacent upper and lower unit blocks are displaced in the left-right direction. In addition to the fact that the end portions of adjacent unit block bodies do not intersect in a substantially cross shape, the joint lines can be complicated by a combination of unit block bodies having a simple shape, so that a natural appearance can be given. Further, since the directionality does not change even if the left and right or up and down directions of the unit blocks are reversed, the unit blocks can be easily arranged on site without previously determining the arrangement position and direction of each unit block. be able to.

[0008]

Embodiments of the present invention will be described below with reference to the drawings.

[0009]

FIG. 1 is a plan view showing the structure of a unit block 1 constituting a concrete formwork for pattern formation according to an embodiment of the present invention.
Approximately L in which two unit rectangles 3a and 3b of the same shape having a long side and a short side having a length ratio of 3 × 2 are abutted vertically and horizontally, respectively.
A shape that can be formed by abutting the bases of the L-shape and the substantially L-shape of the other unit rectangles 3c and 3d, respectively, and that the whole is point-symmetric about the point 7 and an arbitrary straight line passing through the point 7 Are formed so as not to be line-symmetric with respect to.
With such a configuration, two valleys 42 and six ridges 43 are formed at the edge of the unit block body 1.

The unit block body 1 in this embodiment is made of a foamed resin, and as shown in FIGS. 2 and 3, the surface of the concrete retaining wall is formed on the concrete placing surface 11 in accordance with the unit rectangles 3a to 3d. Concave part 1 forming stone pattern
3a, 13b, 14a and 14b are formed respectively. The rear surface of the concrete casting surface 11 is a contact surface 15 that is in contact with the inner surface of the panel 21 on the front surface side of the retaining wall assembled for concrete casting.

[0011] As shown in FIG.
a, 13b, 14a, and 14b around the protrusions 12a, 1
2b are formed, and the respective concave portions 13a, 13b, 14a,
The width of the convex portion 12a formed between the side portions of 14b is twice as large as the width of the convex portion 12b constituting the outer edge of the unit block body 1.

The construction procedure and functions of the formwork of this embodiment will be described below with reference to FIGS. In addition, in the construction procedure, the procedure of disposing the unit block 1 on the panel 21 will be mainly described.

First, as shown in FIG. 4, the unit block 1a is attached to the inner surface of the panel 21 on the retaining wall surface side by the edge 31.
a is disposed at a predetermined position in a state where it is inclined by about 45 degrees with respect to the installation perpendicular P or the installation horizontal line H which is a reference at the time of installation, and the other unit block 1b The valley portion 42b of the unit block body 1a corresponds to the valley portion 42b of the unit block body 1a.
Are arranged so as to be fitted respectively. At this time, since the end sides of the unit block bodies 1a and 1b are in contact with the long side and the short side of the unit rectangle 3, the troughs 42e and 42f are formed.

Further, as shown in FIG. 5, after the edge 31a of the unit block 1a is brought into contact with the edge 31c of the unit block 1c, the crest 43 of the unit block 1d is contacted.
When d is fitted to the valley 42e formed by the unit block bodies 1a and 1b, the crest 43 of the unit block body 1d
d ′ corresponds to the valley portion 42c of the unit block body 1c, and the crest 43c of the unit block body 1c corresponds to the valley portion 42 of the unit block body 1d.
d.

By repeating the above pattern and arranging the unit block bodies 1 on the panel 21 with a certain direction in a plane, a plurality of unit block bodies 1 are formed as shown in FIG. It can be arranged over a wide range.

When the unit block bodies 1 having such a shape are arranged adjacent to each other, the adjacent unit block bodies 1 come into contact with the long sides and the short sides of the unit rectangles. The side 31a and the unit block 1a
Are shifted from the edge 31b of the unit block body 1b adjacent to the unit block, so that they are not connected in a straight line. Therefore, as shown in FIG. 6, the end sides 31 of the plurality of unit block bodies 1 disposed on the panel 21 and facing obliquely to the right are not formed in a straight line. In addition, the edge 31 ′ of the plurality of unit block bodies 1 that faces obliquely to the left is also formed in a straight line because a gap occurs due to the mountain valleys 42 and 43 formed in advance on the edge of the unit block body 1. Never.

After the plurality of unit blocks 1 are combined and arranged on the panel 21 as described above, a concrete casting formwork is assembled using the panel 21 based on a conventionally known method. The retaining wall can be formed by placing concrete in the formwork and removing the panel 21 after the concrete has hardened.

In this embodiment, the uppermost and lowermost parts of the plurality of unit block bodies 1 arranged in this embodiment are unit block bodies 1f having a different shape of a substantially triangular shape as shown in FIG.
Are arranged. The shape and the like of such a unit block body 1f can be appropriately changed depending on the shape of the unit block body 1 and need not be particularly used.

As described above, the unit block body 1 according to the present embodiment has a length ratio of 3 × 2.
Two identical unit rectangles 3a having a long side and a short side,
3b are abutted in the vertical and horizontal directions, respectively, so that the L-shape formed by the other unit rectangles 3c and 3d abuts each other. Since the upper and lower unit blocks 1 are displaced in the left-right direction only by combining them in a certain direction, the joint lines 22 formed between the stone patterns become complicated as shown in FIG. You can give a good impression.

Further, since each unit block body 1 is configured to be point-symmetric about the point 7 and not to be line-symmetric with respect to an arbitrary straight line passing through the point 7, as shown in FIG. The unit block body 1 can be disposed even if the left-right direction and the up-down direction are reversed (the arrows in the figure indicate the left-right direction and the oblique left-right direction of the unit block body 1). The unit blocks 1 can be easily installed on site without deciding the installation position and orientation. Further, the fitting of the peaks and valleys formed at the end sides of the predetermined unit block body 1 allows the adjacent unit block body 1 to be fitted.
Since the relative movement between them is restricted, and in the present embodiment, each unit block body 1 is installed such that the edge 31 thereof is inclined at a predetermined angle with respect to the installation perpendicular line P or the installation horizontal line H. In particular, relative movement in the horizontal or vertical direction is effectively restricted. Therefore, when the unit block 1 is placed, when the concrete block is cast, or the like, a load is applied to the unit block 1, deviation from the arrangement position is prevented.

Further, the recesses 13a, 13b, 14a, 1
4b is formed in a rectangular shape, and these concave portions 13a, 13
b, 14a, and among the convex portions 12a formed between 14b,
Particularly, since the projections 12a 'and 12a "are formed so as not to cross each other, the joint lines 22 formed on the surface of the retaining wall are formed.
Becomes more complicated, and a natural impression can be given more effectively in appearance.

Since the width of the projection 12a is twice as large as the width of the projection 12b, when the unit blocks 1 are arranged adjacent to each other, the projection 12a of the predetermined unit block 1
Since b and the protruding portion 12b of the other unit block body 1 form a protruding portion having the same width as the protruding portion 12a, it is possible to form the joint line 22 having a uniform width on the surface of the concrete retaining wall.

Although the embodiments of the present invention have been described with reference to the drawings, the present invention is not limited to the above-described embodiments, but may be modified or added without departing from the spirit of the present invention. Needless to say, this is included in the present invention.

For example, the ratio of the length of the long side to the length of the short side of the unit rectangle constituting the unit block is 3 × 2, but these ratios are arbitrary and variously deform if they are not approximately the same size. It is possible.

Further, the unit block body 1 in this embodiment is
Is arranged such that each end is inclined at an angle of about 45 degrees with respect to the installation perpendicular line P or the installation horizontal line H, but the inclination angle at the time of arrangement is arbitrary.

[0026]

The present invention has the following effects.

(A) According to the first aspect of the present invention, if unit blocks having the same shape are arranged in a fixed direction while their end sides are in contact with each other without a gap, the adjacent upper and lower unit blocks are arranged. Since the bodies are displaced in the left-right direction, not only the edges of adjacent unit blocks do not cross in a substantially cross shape, but also the joint lines can be complicated by combining simple unit blocks, so that the appearance is natural. You can give a good impression. In addition, since the direction does not change even if the left and right or up and down directions of the unit block body are reversed,
The individual unit blocks can be easily arranged on site without previously determining the arrangement position and orientation of each unit block.

[Brief description of the drawings]

FIG. 1 is a plan view showing a configuration of a unit block body as a concrete formwork for pattern formation according to an embodiment of the present invention.

FIG. 2 is a plan view showing a unit block body of FIG. 1;

FIG. 3 is a sectional view taken along line II of FIG. 1;

FIG. 4 is a plan view showing a process of disposing a unit block on a panel.

FIG. 5 is a plan view showing a process of disposing a unit block body on a panel.

FIG. 6 is a perspective view showing a concrete casting formwork on which unit block bodies are disposed.

FIG. 7 is a front view showing the surface of a concrete retaining wall.

[Explanation of symbols]

 1, 1a-1d Unit block body 1f Unit block body 3a-3d Unit rectangle 7 points 11 Concrete casting surface 12 Convex part 12a, 12a ', 12a "Convex part 12b Convex part 13a, 13b Concave part 14a, 14b Concave part 15 Contact Surface 21 Panel 22 Joint line 31, 31 'Edge 31a-31c Edge 42 Valley 42a-42d Valley 43 Mountain 43a-43f, 43d' Mountain

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Makoto Mita 1-9-11-506 Ichikawa, Ichikawa-shi, Chiba Oshima Design Co., Ltd. (72) Inventor Toshishi Imazaki 3-10 Iwamotocho, Chiyoda-ku, Tokyo 7 Nikken Metal Co., Ltd. (72) Eiji Miyamoto 3-10-7 Iwamotocho, Chiyoda-ku, Tokyo F-term in Nikken Metal Co., Ltd. 4G053 CA22 EA11 EA26 EB03

Claims (1)

[Claims] 1. A concrete formwork for forming a pattern, which is used at the time of casting concrete to form a pattern on the surface of concrete, wherein the formwork has a plurality of recesses formed on a surface thereof. Each of the unit block bodies includes two unit rectangles having a long side and a short side, each of which has a substantially L-shape by vertically and horizontally abutting each other, and further has two bases of the L-shape. This unit block body is formed in a shape that is point-symmetric with respect to the center point thereof and is not line-symmetric with respect to any straight line passing through the center point. A concrete formwork for forming a pattern, characterized in that: