JPH08103908A - Stone splitting and tool used for stone breaking - Google Patents

Abstract

PURPOSE: To ensure that the split face of a stone is flat and the finish processing of the split face is easy and at the same time, the yield of a processed stone is increased by forming a traversing groove on the upper surface of a stone, introducing a pair of intervenient materials into the groove, then interposing a wedge between these paired intervenient materials, and stroking this wedge. CONSTITUTION: A stone 1 is positioned with the upper surface 2 levelled, and a groove 4 with a recessed cross section is formed traversing the upper surface 2 along almost the center longitudinal direction. In addition, a pair of intervenient materials 5, 5 which are thick and somewhat long with an almost L cross section, consisting of a vertical interposed part and a horizontal deposition part, are hooked in the groove 4. In this case, the inner face angular part of the deposition part and the interposed part are fitted to an angular part with the groove 4 on the upper surface 2 of the stone, then the inner surface of the deposition part is allowed to come into contact with the upper surface 2 of the stone, and the inner surface of the interposed part is also allowed to come into contact with the wall of the groove 4. Further, the wedge 12 is caused to intervene in the gradient faces 7, 7 of the intervenient materials 5, 5. When splitting the stone 1, an outwardly acting force is repeatedly applied to the gradient faces 7, 7 against which the intervenient materials 5, 5 are set by stroking the heads 13 of the wedges 12 alternately. Thus the center of the tip bottom of the wedge 12 is repeatedly forced to come into contact with the interposed part.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention provides a quarrying method for crushing a stone material to produce, for example, a pedestal for decoration, a tombstone, a building material, and the like, and a tool for use in the method.

[0002]

2. Description of the Related Art Conventionally, in order to break a stone, a method has been used in which a hole is made in a stone, for example, in a row with a drill, and the stone is cut along the row of holes.

[0003]

Conventionally, when a hole is drilled in a stone to break the stone, the stone is scattered violently as fine dust and contaminates the surroundings. There was a problem that it was exposed to danger. When a stone is broken by the conventional method, there is a problem that a large number of man-hours, such as cutting and polishing, are required to finish the cracked surface smoothly because a hole left by a drill remains on the cracked surface. was there. As a result, there is a problem that the yield of stones is reduced, and in the case of expensive stones, the economic loss is increased.

In order to solve the above problems, the present invention provides
It is an object of the present invention to provide a method of breaking stones and a tool used in the method.

[0005]

In order to achieve the above-mentioned object, the present invention provides a stone-cutting method in which a groove is formed in an upper surface of a stone material and a pair of intermediate members is received in the groove, and a pair of intermediate members is received in the groove. The wedge is interposed between the intermediate members, and the stone is broken by hitting the wedge. It is characterized in that both ends of the groove are open. The wedge is interposed between the nearly vertical inclined surfaces of the pair of intermediate members received in the grooves. A groove formed in the upper surface of the stone material that crosses the upper surface, and is composed of a pair of intermediate members received in the groove, the pair of intermediate members having an inclined surface in contact with a wedge interposed therebetween; To do. The intermediate member is characterized by being formed in a substantially L-shaped cross section from the intervention portion and the placing portion.

[0006]

A groove is formed in the upper surface of the stone material so as to cross the upper surface, a pair of intermediate members are received in the groove, a wedge is interposed between the pair of intermediate members, and the stone is broken by hitting the wedge. Therefore, the stone can be easily divided, the cracked surface is flat, and the finishing of the cracked surface can be performed very easily, and the generation of dust is extremely small.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The method of the present invention and the tools used in this method will be described below in the order of FIGS. FIG. 1 is a perspective view showing a square stone 1. The upper surface 2 of the stone 1 is slightly rectangular, and the side surfaces 3 on both sides are also rectangular. Here, the stone 1 is placed with its upper surface 2 positioned horizontally. The shape of the stone is not limited to a rectangular shape. A cross section that crosses the substantially center of the upper surface 2 along the longitudinal direction forms a groove 4 having a concave shape, and both ends of the groove 4 are open on the side surface 3 (FIG. 2). Here, the width between the vertically rising walls 8, 8 of the groove 4 is slightly longer than the width of the side surface 3, and the depth of the groove 4 from the upper surface 2 to the horizontal bottom 9 is the side surface. 3 has a slight depth compared to the height. Note that the number of grooves is not limited to one. Further, the shape, width, and depth of the groove may be appropriately determined depending on the material and shape of the stone material.

FIG. 3 is a perspective view showing a state before the pair of intermediate members 5, 5 are received in the grooves 4 on the upper surface 2 of the stone 1.
Here, the pair of intermediate members 5 have the same shape. The intermediate material 5 is formed from a vertical intervention portion 10 which is a main body of the intermediate material and a horizontal mounting portion 11 into a thick and slightly longitudinal cross-section substantially L-shaped. Reference numeral 6 in the figure is a corner between the intervention unit 10 and the placement unit 11. With the corner 6 as a base end, the outer surface of the intervention portion 10 is inclined by providing a slight outward inclination angle to the intervention portion 10, and this is used as the inclined surface 7 of the intermediate member 5.

FIG. 4 shows a state in which the intermediate member 5 is hooked along the entire length of the groove 4 of the stone material 1 and is received in the groove, and the wedge 1.
It is a perspective view showing the state before intervening between 2 inclines 7 and 7 of intermediate material 5. Here, in the intermediate material 5, the inner surface corners of the mounting portion 11 and the intervention portion 10 are aligned with the upper surface 2 of the stone material 1 and the corner portions of the groove 4, and the inner surface of the mounting portion 11 is placed on the upper surface 2 of the stone material 1. They are brought into contact with each other, and the inner surface of the intervention portion 10 is brought into contact with the wall 8 of the groove 4 so as to be hooked. In the groove 4, the lower edge 7 ′ of the sloping surface 7 near the vertical shape of the intermediate member 5 is slightly higher than the bottom 9 of the groove 4, and the lower edges 7 ′, 7 ′ opposed to each other. There is a slight gap between them. Here, the five wedges 12 shown in the figure are all of the same shape, and the wedge 12 has a substantially rectangular top portion 13, side surfaces 14 on both sides having a substantially inverted isosceles triangular shape, and a pair of wedges 12. It is formed in a substantially V-shaped square shape having a rectangular inclined front surface 15. Further, the apex angle of the side surface 14 of the wedge 12 is twice as large as the inclination angle of the inclined surface 7 of the intermediate member 5 described above.

FIG. 5 shows that the five wedges 12 are interposed between the opposed inclined surfaces 7, 7 of the intermediate member 5 at substantially equal intervals along the entire length of the groove 4, and then the stone 1 is removed. It is a perspective view which shows the state at the moment of breaking into two. Here, the wedge 12 is attached to the inclined surface 7,
When intervening between the seven positions, the inclined front surface 15 of the wedge 12 is in contact with the inclined surface 7. At the same time, the leading end of the wedge 12 fits through the gap between the lower edges 7 ′ and 7 ′
6 is in contact with the bottom 9 of the groove 4. Therefore, in order to break the stone 1, the tops 13 of the five wedges 12 are alternately or simultaneously and repeatedly struck, and an external force directed outward on each of the inclined surfaces 7, 7 of the intermediate members 5, 5 is applied. Apply repeatedly. This external force acts almost evenly on the walls 8, 8 of the groove 4 by the interposition of the intermediate members 5, and the tip 16 of the wedge 12 repeatedly presses the center of the bottom 9, so that the stone 1 can be easily and reliably attached. Can be broken. When the stone 1 is broken, the side 3
The edge 17 of the cracked surface of the stone 1 appears at the center of
The edge 18 of the cracked surface also appears at the center of. At this time, the two adjacent cracked surfaces of the stone 1 are separated from the center line of the bottom 9 of the groove 4 along the edges 17 and 18 of the cracked surface.
And spreads out flatly all over the area vertically below.

[0011] Since the intermediate member and the wedge described above have a simple configuration, for example, according to the size of the stone material and the like,
Each size can be provided economically. Further, the intermediate material and the wedge are not limited to those described above, and various shapes can be provided to suit the material and shape of the stone material, for example.

[0012]

According to the method of the present invention, a groove is formed on the upper surface of a stone material so as to cross the upper surface, a pair of intermediate members is received in the groove, and a wedge is interposed between the pair of intermediate members. Since the stone is broken by hitting the stone, the stone can be easily broken. Further, the cracked surface is flat, and has an effect that the finishing process can be performed very easily and the yield of the stone material can be increased. Since the groove has a concave cross section and has both ends open, it has an effect that the stone can be more easily and surely split. The intermediate member is formed in a substantially L-shaped cross section from the intervention portion and the mounting portion, and the wedge has a simple configuration formed in a substantially V-shaped rectangular bar shape. It has an effect that can be provided.

[Brief description of drawings]

FIG. 1 is a perspective view showing a stone material.

FIG. 2 is a perspective view showing a stone and a groove formed in the stone.

FIG. 3 is a perspective view showing an intermediate material and a stone material having a groove formed therein.

FIG. 4 is a perspective view showing a state in which an intermediate member is received by a stone and a wedge.

FIG. 5 is a perspective view showing a moment when a stone is cracked.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Stone material 2 Top surface 3 Side surface 4 Groove 5 Intermediate material 7 Inclined surface 8 Wall 9 Bottom 10 Intervention part 11 Placement part 12 Wedge 13 Top part 14 Side surface 15 Front

Claims (5)

[Claims] 1. A stone is formed on the upper surface of a stone material by forming a groove crossing the upper surface, receiving a pair of intermediate members in the groove, interposing a wedge between the pair of intermediate members, and hitting the wedge to remove the stone. A stone-cutting method characterized by splitting. 2. The method according to claim 1, wherein both ends of the groove are open. 3. The method according to claim 1, wherein the wedge is interposed between nearly vertical inclined surfaces of a pair of intermediate members received in the grooves. 4. An upper surface of a stone material is formed with a groove that traverses the upper surface and is composed of a pair of intermediate members received in the groove, the pair of intermediate members having an inclined surface in contact with a wedge interposed therebetween. A tool for use in a quarry method characterized by having. 5. The tool used in the stone quarrying method according to claim 4, wherein the intermediate material is formed from the intervention portion and the placing portion into a substantially L-shaped cross-section.