JPH0540302U - Pavement block - Google Patents

Abstract

(57) [Abstract] [Purpose] When paving with paving blocks, when a vacant space that is not enough for one unit block occurs at the boundary with the curb, etc. If so, it can be easily broken to form a block of an odd size, and the unevenness of the fracture surface can be reduced to make the fracture surface clean. [Structure] A slit 11 that facilitates breakage of the paving block 10 along a straight line that crosses the surface in a desired direction is formed in a penetrating or deep groove shape toward the back surface.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a paving block that is easy to break and has a smooth fracture surface.

[0002]

[Prior Art]

 Although various shapes of paving blocks are known, when paving the ground using these paving blocks, the paving blocks are used at the edge of the paving area, for example, at the boundary with the curb of the pavement. In many cases, one block (unit block) lacks a vacant space. For example, as shown in FIG. 4, when hexagonal unit blocks 1 and square unit blocks 2 are arranged and paved, a triangular void is formed along the straight edge S. Further, as shown in FIG. 5, when only rectangular unit blocks 3 are used and arranged in a mosaic pattern, large and small kinds of triangular or trapezoidal voids are formed along the straight edges. ..

In such a case, conventionally, the unit blocks 1, 2 and 3 were broken into desired sizes and fitted into the above-mentioned voids. That is, the square unit block 2 is broken in a diagonal direction, and the rectangular unit block 3 is broken along a line intersecting its long side at an angle of 45 degrees. As a method of breaking, a method of breaking with a manual pressing machine having a knife on the top and bottom and cutting with a diamond cutter has been adopted. In addition, instead of breaking the unit block, it was also performed in advance to manufacture a block with an odd shape less than that size with a dedicated mold in advance.

[0004]

[Problems to be solved by the device]

 However, when breaking with a manual press, it is difficult to obtain the desired shape by breaking in an unexpected direction, so the block becomes unusable and wasteful, and large irregularities occur on the fracture surface. There was a problem. Also, when using a diamond cutter, it takes time and labor, and the cost is high because the blade is expensive, and when pre-manufacturing with a dedicated die, die cost is required. There was such a problem.

The present invention provides a paving block that can be easily broken at the site of paving work with a hammer and has a small fracture surface unevenness and a clean fracture surface.

[0006]

[Means for Solving the Problems]

 In the paving block of the present invention, slits for facilitating breakage of the paving block along a straight line crossing the surface of the paving block in a desired direction are provided in a penetrating or deep groove shape toward the back surface. Characterize.

[0007]

[Action]

 The paving block of this invention is easily broken along the slit by holding one side of the slit in the hand and hitting the other side of the slit with a hammer, and there is little unevenness of the fracture surface obtained by the fracture. .. Therefore, by providing the above slits along any number of straight lines that are expected to break, a small block to be fitted into the edge of the paving range can be easily made on the site of paving work. The efficiency of paving work is improved and the waste of blocks is reduced. Since the block of this invention has the same shape as the unit block itself, it can be used similarly to the unit block. Also, when paving with such a block, the slits form a pattern, and especially when the slits are formed in a penetrating manner, the drainage is further improved.

[0008]

【Example】

 FIG. 1 shows a pavement block 10 having a 100 mm square upper surface and a height of 80 mm. In this embodiment, slits 11 each having a length of 40 mm and a width of 5 mm are arranged at intervals of 12 mm along the diagonal line. It is provided so as to penetrate toward. By breaking the pavement block 10 along the slits 11 and 11, the pavement block 10 can be placed in a triangular space along the edge S of FIG. This pavement block 10 is provided, for example, when two blade plates corresponding to the slits 11 are projected downward on the upper die (press plate) of the pavement block molding machine and the upper die is lowered. It is molded by pushing this blade into the concrete and mortar filled in the lower mold.

The paving block 20 shown in FIG. 2 has a rectangular parallelepiped shape in which the length of the paving block 10 shown in FIG. 1 is doubled, and two rows of slits 21 and 22 are provided on the upper side of the upper surface. And is inclined at an angle of 45 degrees, and is provided in a groove shape having a depth of 65 mm. The slits 21 in one row are provided along a straight line that passes through one corner of the paving block 20, and the slits 22 in the other row are along a straight line that divides the paving block 20 into two equal parts. Is provided. Therefore, the small block obtained by breaking along the slit 21 is used to fill the triangular void along the edge S in FIG. 4, and the intermediate obtained by halving the large block and the slit 22. Blocks of size are used to fill large and small trapezoidal voids along edge S in FIG.

In the paving block 20 of FIG. 2 described above, the slits 21 and 22 can be provided in a penetrating manner as in the embodiment of FIG. Further, in the paving block 10 of FIG. 1, the slit 11 can be provided in a deep groove shape as in the embodiment of FIG. FIG. 3 shows this example, and two deep groove-shaped slits 12 are provided along the diagonal of the square paving block 10. Further, in the embodiments of FIGS. 1 and 2 described above, the inclination angles of the slits 11, 21, 22 with respect to the sides can be arbitrarily set according to the purpose.

[0011]

[Effect of the device]

 As mentioned above, this device has a slit for paving blocks to facilitate its breaking.Therefore, by hitting with a hammer, the blocks can be easily broken along the slits, and unevenness can be obtained. A fracture surface with less damage is obtained, and the efficiency of paving work is improved. Further, at the time of the above-mentioned breakage, the break line does not deviate from the desired position to render the above block unusable, and waste is greatly reduced. In addition, since both sides of the slit are connected at both ends of the slit, it can be used in the same manner as an ordinary unit block if the above breakage is not caused. Moreover, since the molding can be performed only by protruding the blade plate corresponding to the above-mentioned slit downward on the upper die (press plate) of the conventional molding machine, the manufacturing cost can be reduced.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention.

FIG. 2 is a perspective view of another embodiment.

3 is a vertical cross-sectional view of a modified example of the embodiment of FIG.

FIG. 4 is a plan view showing an example of a paved surface.

FIG. 5 is a plan view showing another example of a pavement surface.

[Explanation of symbols]

 10: Square pavement block 11, 12: Slit 20: Rectangular pavement block 21, 22: Slit

Claims (1)

[Scope of utility model registration request] 1. A pavement comprising slits for facilitating breakage of the pavement block along a straight line crossing the surface of the pavement block in a desired direction toward the back surface in a penetrating or deep groove shape. block.