JPH04194202A - Concrete block for pavement construction - Google Patents

Abstract

PURPOSE:To make the gap between mutual blocks look like to be wide in external appearance by constituting nearly parallel steps with ridge line parts on the side parts of the upper ridge line parts of a nearly rectangular parallelepi ped concrete block, and constituting round cutoutlike steps on the four corners. CONSTITUTION:On the upper face of a concrete block 1 of nearly rectangular parallelepiped laid for a pavement, steps of nearly parallel width with ridge line parts are formed on the side parts of inside ridge line parts, circular arc likely round cutout steps 2 are formed on the four corner parts, and the upper face 4 is steeply raised or continued with a gentle curve between the upper face 4 and the step 2. The blocks 1 are spacedly laid with a spacer provided in the vertical direction of the block 1, and hence a pavement is constituted. Hereby, external appearance of the gap A between the blocks 1 looks like to be wider than actual gap G, tasteful looking is given to the pavement, and also danger of fitting the extreme end of an umbrella or a stick or the heel of a shoe into the gap can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to concrete blocks that are laid side by side to form a pavement surface.

[Prior art] The material and design of the surface of pavements, especially sidewalks, are
It is an important point for the overall atmosphere of the road, and by extension the atmosphere of the rows of houses and shopping streets surrounding the road.

Among these, there are pavement surfaces made of stones and other materials. This is the case with so-called ``cobblestone pavement'' and ``brick pavement.'' Pavements constructed in this way have a solid, elegant feel and are a type of pavement that is often preferred. There are also concrete blocks laid out in rows. In this method, a pavement is completed by arranging a large number of concrete blocks while adjusting the spacing using sand materials.The demand for this method has increased in recent years as it is possible to create a variety of pavements by devising the shape of the blocks themselves, which are the building blocks. It's getting expensive.

[Problem to be solved by the invention] The basic shape of such concrete blocks is a rectangular parallelepiped, and they are laid out side by side with slight gaps between them, but these gaps cause no shadow in the overall pavement. These are the constituent parts, and the gaps between them form the pattern of the pavement as a whole.

Therefore, if you want to change the pattern other than by changing the arrangement, the only way is to change the spacing. Therefore, in recent years, blocks having a rectangular parallelepiped shape with rounded vertical ridges cut out have come to be used. This notch creates a large gap when the blocks are butted against each other, so the shadow formed by the entire pavement becomes larger at the butt, giving it a different feel than conventional rectangular parallelepiped blocks. You will be giving it to others.

However, if the cutout were made too large, the tips of branches or the heels of high-heeled shoes could get stuck in the gap, which could be dangerous, so in reality, bold cutouts were not made.

[Means for Solving the Problems] Therefore, in view of the above points, the inventor of the present invention conducted intensive research and found that the romco that he saw seemed to have a large notch.
In reality, concrete blocks that do not have the above-mentioned problems are concrete blocks that are roughly rectangular parallelepipeds, and the area around the ridgeline on the top surface is lowered to form a step, and the step is formed in areas other than the four corners. developed a concrete block for pavement laying, which is characterized by having a width approximately parallel to the ridgeline, and having steps formed by rounded notches at the four corners.

Here, the term "approximately rectangular parallelepiped" is defined as including, in addition to an accurate rectangular parallelepiped, a rectangular parallelepiped with some rounding at the edge, a somewhat distorted rectangular parallelepiped, a rectangular parallelepiped with uneven bottom surfaces, etc. Note that the concept of "rectangular parallelepiped" naturally also includes "cube."

The "step" refers to a lower part of the upper surface of the main body, which is generally a rectangular parallelepiped, and is located on the peripheral side of the upper surface, that is, around the ridgeline of the upper surface. By providing steps,
The distance between the blocks appears to be wide in appearance.

The structure of the stages is not limited as long as it meets the purpose. Typically, the steps form a plane parallel to the top surface of the body;
Of course, they do not have to be parallel. In addition, the steps are provided in a shape substantially parallel to the ridgeline of the upper surface of the main body except for the four corner portions, and are configured with round notches at the four corner portions. A round notch means that the apex of a rectangle is notched in a rounded shape or a similar shape, and this has the effect that when the concrete blocks of the present invention are laid out side by side, the gap between the butt portions of the concrete blocks looks large. It will be played.

[Example 1] The present invention will be described in more detail below based on an example shown in the drawings.

FIG. 1 (al Cbl shows one of the embodiments of the concrete block 1 for pavement laying according to the present invention (hereinafter referred to as "the present invention block 1"), and as is clear from the figure, the present invention block 1 has length, width, and height of 1 each.
It is approximately a rectangular parallelepiped with dimensions of 78 x 178 x 60 mm,
A step 2 is provided on its upper surface 4.

The inner edge line 6 of this step 2 is straight at the side part, but
It has an arc shape at the four corners, and is therefore wider at each interval. Incidentally, the protrusions provided in the vertical direction at various places on the vertical surface 5 of the block 1 of the present invention are spacers 3, so that the blocks are laid at intervals. Of course, this gap is filled with sand, just like in the case of regular concrete blocks.

The block shown in Fig. 1 has a steep top surface 4 to form the step 2, but since it can be said that there are problems in terms of strength or safety, the block shown in Fig. 2 is Alternatively, the upper surface 4 and the step 2 may be continuous with a gentle curve.

FIG. 3 shows a state in which a large number of blocks 1 of the present invention shown in FIG. 1 are actually laid out (however, the gaps are exaggerated). It is clear that A (6 mm in the prototype) is wider than the actual gap S (2 mm in the prototype).

[Effects of the Invention] As explained in detail above, the concrete block for pavement laying according to the present invention is a block made of concrete that is approximately rectangular parallelepiped, and the ridgeline portion of the upper surface thereof is lowered to form a step. The width of the step is substantially parallel to the ridgeline except for the four corner portions, and the four corner portions are roundly cut out to constitute the step, and the blocks are The apparent spacing is
The steps are wide enough to create a pavement with a clear contrast, and the gaps are actually narrower than they appear, so there is a risk of high heels or the tip of an umbrella or cane getting stuck in them. It is safe because it is small,
This is an extremely advanced invention that has the following effects.

[Brief explanation of the drawing]

Figure 1 ta+ (bl shows one of the embodiments of the concrete block for pavement laying according to the present invention;
Figure a) is a plan view, and figure (b) is a front view. FIG. 2 is a cross-sectional view showing a part of another embodiment of the present invention, and FIG. 3 is a partially exaggerated plan view showing the state in which concrete blocks for pavement laying according to the present invention are actually laid. be. 1... Concrete block for pavement laying 2...
...Step 3...Spacer 4...Top surface 5...Vertical surface 6...Inner ridgeline A...Appearance gap S・・・・・・Actual gap ≧j

Claims (1)

[Claims] 1. It is a concrete block that is approximately rectangular parallelepiped, and the area around the ridgeline on the top surface is lowered to form a step, and the step has a width that is approximately parallel to the ridgeline except for the four corners. , a concrete block for pavement laying, characterized in that the four corner portions constitute steps with round notches.