JPH0218089Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a concrete block that can be used as a curb for a flower bed, a curb for a road, or as a stopper for gravel around buildings.

<Prior Art> Conventionally, bricks and the like have been used as curb stones for flower beds, and flower beds are constructed by stacking the bricks vertically or arranging them horizontally and joining them with mortar. For this reason, in the past, construction took time and effort, and the finish was not always good. Therefore, in recent years, concrete blocks have become commercially available that can be used as curbstones for flower beds simply by arranging them horizontally and connecting them. As shown in FIGS. 8 to 13, this concrete block is shaped like five cylindrical columns arranged side by side and fixed together. That is, the front and back surfaces of the concrete block 1 have five consecutive arcuate curved surfaces, and the right side end 1a in the figure is a substantially arcuate convex curved surface. On the other hand, the side end 1b on the left side in the figure has an arcuate concave curved surface with the same curvature so that it can be closely fitted to the side 1a. Also concrete block 1
A vertical hole 3 passes through each of the left and right sides. To construct a flower bed using such concrete blocks 1 as curb stones, as shown in Fig. 13, a plurality of concrete blocks 1 are arranged horizontally, the side ends 1b are fitted into the side ends 1a, and the adjacent concrete The cutout 4 is fitted into the vertical hole 3 of the block 1 and connected. Since the fitting surfaces of the side end portions 1a and 1b are arcuate curved surfaces, the angle for connecting the concrete blocks 1 is +
It can take any angle from 90° to -90°.

<Problems to be solved by the invention> However, in the conventional concrete block 1 described above, the fitting surfaces of the side ends 1a and 1b are arcuate curved surfaces, so the angle for connecting the concrete blocks 1 is +90 Although the angle can be set arbitrarily from -90° to -90°, on the other hand, it has been difficult to accurately set a specific angle, for example 90°. That is,
When constructing a typical rectangular flower bed, an appropriate number of concrete blocks are connected in a straight line, bent at 90 degrees, and then an appropriate number of concrete blocks are connected in a straight line. In many cases, the flowerbeds could not be connected to each other, or could not be connected accurately in a straight line, resulting in flowerbeds with distorted shapes. The object of the present invention is to solve the problems of the prior art and provide a concrete block that can be accurately connected at a specific angle.

<Means for Solving the Problems> The structure of the concrete blocks of the present invention that achieves the above object is that the concrete blocks are connected to each other by fitting the side ends, and the side ends of the concrete blocks One of the sections horizontally connects several rectangular surfaces, and the interior angles of the adjacent rectangular surfaces are all equally obtuse angles, and the other side end of the concrete block is connected to the one side end. It is characterized in that it is formed by connecting at least two rectangular surfaces laterally with an external angle equal to the obtuse angle so that it can fit into any rectangular surface in the section.

<Operation> When a plurality of concrete blocks according to the present invention are used and connected, the inner angles at one side end of the concrete blocks are equally obtuse and the rectangular faces are connected laterally. However, at least two rectangular surfaces connected laterally with an external angle equal to this obtuse angle at the other side end can be fitted, so it is necessary to accurately connect the concrete blocks at a specific angle. This is possible.

<Example> Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

As shown in FIGS. 1 to 7, the concrete block 5 of this embodiment has a shape like four polygonal pillars arranged side by side and fixed together. The front and back surfaces have a plurality of rectangular surfaces 6 that are continuous and undulating, while the side ends 7 and 8 of the concrete block 5 are shaped so that they can fit into each other. That is, at the left side end 7 of the concrete block 5 in FIGS. 2 and 6, several rectangular surfaces 9 of the same shape (six in the figure) are connected laterally, and adjacent rectangular surfaces 9 are connected laterally. The interior angles θ formed by the angles 9 are all obtuse angles. On the other hand, at the right side end 8 of the concrete block 5 in FIGS. 2 and 6, two rectangular surfaces 10 having the same shape as the rectangular surface 9 are connected with an external angle θ equal to the internal angle. ing. Therefore, the two rectangular surfaces 10 of the side end 8 are connected to the adjacent rectangular surfaces 9 of the side end 7.
If you fit any two of them closely together,
As shown in FIG. 1, it can be connected precisely at a specific angle to the concrete block 5. Here, the specific angle is 90° in the illustrated example,
There are five angles: 45°, 0°, -45°, and -90°, but by appropriately selecting the sizes of the interior and exterior angles, the angle can be larger or smaller. In this embodiment, it is not possible to connect the concrete blocks 5 to each other at an angle other than such a specific angle, but on the other hand, it is not possible to connect the concrete blocks 5 accurately at a specific angle. For example, when constructing a rectangular flower bed, etc., this concrete block 5 can be used.
By using it as a curbstone, you can create a flowerbed with an accurate shape. Also, concrete block 5
Four vertical holes 11 are bored at equal intervals in the bottom of the holder, and the vertical holes 11 on both sides are deeper than the one in the center. Therefore, when using the concrete blocks 5 in a stacked manner, the vertical holes 11 on both sides
It is preferable to extend the vertical hole 11 upward and insert a reinforcing bar or the like into this vertical hole 11.

In addition, in the above embodiment, the concrete block 5
Although the front and back surfaces have a shape in which a plurality of rectangular surfaces 6 are continuously undulated, the shape is not limited to this and may be flat. Further, the material of the concrete block 5 is not limited to concrete, and a part or all of it may be replaced with other materials depending on the purpose of use.

<Effects of the Invention> As described above in detail based on the present invention, the concrete blocks of the present invention can be connected accurately at specific angles, so it is convenient for constructing flower beds and the like. Furthermore, the concrete blocks of the present invention can be used not only as curbstones for flower beds, but also as curbstones for roads, gravel stops around buildings, etc.

[Brief explanation of the drawing]

Figures 1 to 7 relate to one embodiment of the present invention; Figure 1 is a perspective view showing a state in which concrete blocks are connected; Figures 2, 3, 4, 5, and 6; Figure 7 is a plan view, front view, left side view, right side view, bottom view, and second view of the concrete block, respectively.
A-A cross-sectional view in the figure, Figures 8, 9, and 10
11, 12, and 13 respectively show a front view, a plan view, a sectional view taken along line B-B in FIG. 9, a left side view, a right side view, and a connected state of a conventional concrete block. It is an explanatory diagram. In the drawing, 5 is a concrete block, 6, 9,
10 is a rectangular surface, 7 and 8 are side ends, and 11 is a vertical hole.

Claims (1)

[Scope of utility model registration request] Concrete blocks that are connected to each other by fitting side ends, one of the side ends of the concrete block connects several rectangular faces laterally, and the internal angles formed by the adjacent rectangular faces are Both sides are formed with an equally obtuse angle, and the other side end of the concrete block has at least two external angles that are equal to the obtuse angle so that it can fit into any of the rectangular surfaces at the one side end.
A concrete block characterized by being formed by connecting rectangular surfaces horizontally.