JPH0470963B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a stone plate used for pasting on floors, walls, etc. of buildings.

[Prior art] Conventionally, when stone materials such as granite and marble are used as interior materials, exterior materials, structural materials, etc. of buildings, in order to obtain a rough surface that is close to natural on the surface of the stone, rough finishing is performed using a jet burner. It has been implemented. Jet burner finishing involves spraying a flame of high-pressure mixed gas on the surface (cutting surface) of a stone that has already been cut, causing the surface of the stone to bounce, creating a rough surface with relatively shallow irregularities.

[Problems to be solved by the invention] However, the above-mentioned jet burner finish
Before that, it is necessary to cut the stone into a plate shape. Furthermore, since the jet burner finish burns the surface of the stone to make it repellent, there is a problem in that it inevitably damages the unique surface condition of the stone, which is produced by nature.

In addition, as another method for obtaining the stone plate 1 having an uneven surface, as shown in FIG. It is conceivable to crush the stone by applying pressure to the edge surfaces 2 in the same orthogonal plane, thereby obtaining a crushed surface 3 having an uneven surface.

However, in the case of the stone plate 1 obtained by the above-mentioned crushing process, the 1
Although a substantially linear fabric weight 5 corresponding to a blade mark is formed on the ridge where the opposing edge surfaces 2 and the surface 3 of one set intersect, the opposing edge surfaces 2 and the surface 3 of the other pair are formed. The intersecting edges are irregularly concave or convex, and no basis weight is formed. For this reason, the height of the ridge on the front side where the above basis weight is not formed relative to the back side
t' is different for each stone slab, and when stone is laid as shown in FIG. 4B, there is a difference in the height of each stone slab 1 relative to the mortar base 6. Therefore, it is impossible to form a flat and orderly floor and wall surface with adjacent stone slabs 1, and there are also inconveniences such as having to set large joints 7 to blur the difference in level between them.

The present invention aims to provide a stone board having a surface with a natural uneven texture peculiar to stone, and having a basis weight located approximately in the same plane on all of the ridges where each facet and the surface intersect. purpose.

[Means for Solving the Problems] The stone plate according to the present invention is a stone plate having a substantially rectangular parallelepiped shape comprising a front surface, a back surface, and four edge surfaces, and the four edge surfaces are formed by cutting and forming a cut surface. is,
The surface is a fractured surface formed by crushing with a press blade that simultaneously applies pressure to each of the four edge surfaces within the same plane substantially perpendicular to the four edge surfaces.

[Function] According to the present invention, the surface of the stone plate is a crushed surface that has been crushed by a press blade, and has a natural uneven surface unique to stone.

In addition, each of the four ridges where the surface intersects with each of the two pairs of opposing facets cut by the press blade has a ridge that corresponds to the blade mark and is in approximately the same plane and is approximately in a straight line. A basis weight is formed. That is, it is possible to form fabric weights located substantially in the same plane on all of the edges where each edge face intersects with the front surface.

[Example] Fig. 1 is a schematic diagram showing the stone plate of the present invention, Fig. 2 A and B are schematic diagrams showing the manufacturing process of the stone plate of the present invention,
FIGS. 3A to 3D are schematic diagrams showing the crushing process in manufacturing the stone plate of the present invention, and FIGS. 4A and 4B are schematic diagrams showing the state of stone lining.

The stone plate 10 is made of a stone material such as granite or marble, and has a substantially rectangular parallelepiped shape with a front surface 11, a back surface 12, and four edge surfaces 13, as shown in FIG. The four edge surfaces 13 of the stone plate 10 are cut surfaces formed by cutting. Further, each of the front surface 11 and the back surface 12 of the stone plate 10 is crushed by a press blade 14 made of tool steel or the like that is simultaneously pressed against each of the four fore faces 13 in the same plane substantially orthogonal to the four fore faces 13. It is considered to be a fractured surface formed by processing.

FIG. 2A shows an example of cutting a stone 15 with a rotary cutting blade 16 to form a face 13.

Figure 2B shows a stone 15 with a face 13 formed thereon.
This is an example of crushing by the upper and lower press blades 14A, 14B and the left and right press blades 14C, 14D. At this time, the upper press blade 14A and the left and right press blades 14C, 14D are connected to the hydraulic cylinder 17A, respectively.
17C and 17D are moved simultaneously, and the lower press blade 14B is fixed to the pedestal 18. Press blade 14 by hydraulic cylinders 17A, 17C, 17D
The crushing strokes of A, 14C, and 14D are for stone 1
5 is sufficient for a slight stroke to start crushing.

Next, the operation of the stone plate 10 will be explained.

According to the above embodiment, the surface of the stone plate 10 is a crushed surface that has been crushed by the press blade 14, and has a natural uneven surface unique to stone.

In addition, each of the four edges where the front surface 11 (or back surface 12) intersects with each of the two sets of opposing fore surfaces 13 cut by the press blade 14 has a mark in substantially the same plane that corresponds to the blade mark. The fabric weight is 11A (or 12A) and each is approximately straight.
A) is formed. In other words, all of the edges where each edge surface 13 and the front surface 11 (or back surface 12) intersect are provided with a basis weight 11A (or 12A) located in substantially the same plane.

Therefore, the height t of each of the four edges on the front surface 11 side of the stone slab 10 relative to the back surface 12 is approximately the same between the stone slabs 10, and when the stone slabs 10 are laid out as shown in FIG. 4A. , each stone plate 10 has a mortar base 1
There is no step difference in height with respect to 9.
Therefore, it is possible to form a flat and orderly floor surface and wall surface by using the adjacent stone plates 10, and it is also possible to set the joints 20 small and form a beautiful stone-clad state.

In addition, when manufacturing the stone plate 10, when crushing the stone plates 10 one by one using the press blade 14 from the end of the large-sized stone 15 as shown in FIG. The central part of the surface 11 surrounded by the basis weight located at is likely to be approximately concave (Fig. 3B)
reference). This is considered to be a phenomenon that is caused by the unbalanced resistance to the pressing force applied by the press blade 14 on both sides of the crushing surface of the stone 15. Therefore, the above phenomenon can be prevented by the following or.

The stone 15 (total length L) is crushed at the center (L/2), and then this halved stone 15 (total length L/2) is crushed.
2) is repeated at the center portion (L/4) to balance the proof stress against the press force applied by the press blade 14 (see FIG. 3A).

As shown in FIG. 3C, a back-up plate 2
1 is pressed and held, thereby balancing the proof stress against the pressing force applied by the press blade 14. 22 is a hydraulic cylinder, and FIG. 3D shows the result of crushing using this cylinder.

[Effects of the Invention] As described above, according to the present invention, the surface is provided with a natural uneven texture peculiar to stone, and all of the ridges where each facet and the surface intersect are located substantially in the same plane. It is possible to provide a stone slab having a basis weight of

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram showing the stone plate of the present invention, FIGS. 2A and B are schematic diagrams showing the manufacturing process of the stone plate of the present invention,
Figures 3A to 3D are schematic diagrams showing the crushing process in manufacturing the stone slab of the present invention, Figures 4A and B are schematic diagrams showing the state of the stones being covered, and Figure 5 is a schematic diagram showing a pair of facing stones on the surface side. FIG. 2 is a schematic diagram showing a stone slab with a basis weight formed only on the edges. 10...Stone tablet, 11...Front side, 12...Back side,
13... Edge surface, 14... Press blade, 11A, 1
2A... weight.

Claims (1)

[Claims] 1. In a stone plate having a substantially rectangular parallelepiped shape and having a front surface, a back surface, and four edge surfaces, the four edge surfaces are cut surfaces formed by cutting, and the front surface is formed in the same plane approximately perpendicular to the four edge surfaces. A stone plate characterized by having a crushed surface formed by crushing with a press blade that simultaneously pressurizes each of the four edge surfaces.