JPH0899312A - Cutting device of block, etc. - Google Patents

Abstract

PURPOSE: To cut off evenly a block on a flat plate by an upper blade and lower blade, by a method wherein the top of the upper blade fitting member is slide-contacted with the circumferential surface of a turning shaft performing an eccentric turning and the lower blade fitting member arranged on the lower part of the upper blade, the flat plate fixed to the bottom and a bearing fixing member are connected with each other by a connecting member. CONSTITUTION: Ring members 51, 52 having a larger diameter than a turning shaft 45 are fitted over both the right and left ends of the turning shaft 45 and an upper blade fitting member 50 is arranged on the lower part of the turning shaft 45. The upper blade fitting member 50 is supported by the turning shaft 45 through U-shaped bolts 54, 55 through which the turning shaft 45 is pierced. Then the lower blade fitting member 71 to which the lower blade 72 is fitted is arranged to the lower part of the upper blade fitting member 50. Then an eccentric action of the turning shaft 45 is performed by operation of a turning operation lever 5 and the upper blade fitting member 50 is lowered to the lower side while slide-contacting with the outer circumferential surfaces of the ring members 51, 52. Therefore, an upper blade 60 and lower blade 70 are approached to each other and a block on a mounting plate 6 is cut off evenly to each other.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cutting device such as a concrete block, an interlocking block, a concrete flat plate or a block used for cutting a block such as natural stone.

[0002]

2. Description of the Related Art Conventionally, a block such as a concrete block, an interlocking block, a concrete flat plate or a natural stone is cut by a well-known diamond cutter or a cutting device such as a block shown in FIG.

The conventional cutting device 100 for cutting a block or the like has a rectangular frame body 101, an upper blade 102 attached to the lower surface of an upper plate portion 101a of the frame body 101, and the frame body. A hydraulic cylinder 103 fixed to the upper surface of the lower plate portion 101b of 101, and a manual operation lever 105 connected to the hydraulic cylinder 103 via a hose 104 for operating a rod 103a of the hydraulic cylinder 103 to move in and out. The oil supply device 106 and the upper surface of the rod 103a, which is fixed to the upper end of the rod 103a, has a mounting surface on which blocks and the like are mounted, and is formed on the inner side surfaces of the left and right plate portions 101c and 101d forming the frame 101. And a mounting table 107 that moves up and down along the rail 101e. Then, when cutting a block or the like (not shown) by the conventional cutting device 100 for a block or the like, the block or the like to be cut is placed on the upper surface of the lowered mounting table 107, and then the manual operation lever 105 is operated. As a result, the hydraulic cylinder 103 is driven to raise the mounting table 107 in the direction of the upper blade 102. With this device, the block or the like is clamped by the upper blade and the mounting table 107, and the block or the like is cut by further raising the mounting table 107.

[0004]

However, the above-mentioned conventional device has various problems described below.
First, the method of cutting a block or the like using a diamond cutter is not only dangerous to the operator, but, for example, when cutting natural stones such as granite and attaching a large number of the natural stones to a wall surface for decoration, Since the trace of the blade of the diamond cutter remains on the surface, it must be ground with a grindstone or the like. On the other hand, in the case of using the cutting device 100 such as the above block, there is no danger to the operator,
Further, even when a large number of natural stones or the like are attached to a wall for decoration, the blocks and the like are broken by the upper blade 102, and thus natural irregularities such as natural stones are formed on the cut surface.
However, in this device 100, the mounting table 10 is operated by operating the manual operation lever 105 every time a block or the like is cut.
Since it is necessary to repeat the descending and ascending of 7 many times,
It takes a very long time to cut a large number of blocks and the like, and quick work cannot be performed. Further, in the above-mentioned device 100, since the block and the like are cut only by the upper blade 102, it is often impossible to cut at a precise position.

Therefore, the present invention was proposed in order to solve the problems of the above-mentioned conventional device, and it is possible to perform the cutting work safely and quickly, and further to cut at an accurate position. An object of the present invention is to provide a cutting device such as a block capable of cutting. Also, the present invention
Another object of the present invention is to provide a cutting device for a block or the like, in which a cutting force acts evenly on a cutting position of the block or the like, and the block or the like can be cut with a relatively small force.

[0006]

DISCLOSURE OF THE INVENTION The present invention has been proposed in order to achieve the above-mentioned object, and a first invention is a rotating shaft formed in a cylindrical shape, and this rotating shaft. A rotation operation lever, one and the other of the support shafts, which are provided to project horizontally from the left and right end surfaces of the rotation shaft and are eccentric to the rotation shaft, and One bearing that rotatably supports the support shaft, the other bearing that rotatably supports the other support shaft, and the upper surface of which is in contact with the peripheral surface of the rotation shaft. A blade mounting member, an upper blade provided on the lower surface of the upper blade mounting member, a bearing fixing member having the one bearing and the other bearing fixed, and a bearing fixing member provided below the upper blade. A lower blade, a lower blade mounting member supporting the lower blade, and a flat plate fixed to the lower surface of the lower blade mounting member, A connecting member formed by connecting the flat plate and the bearing fixing member, and a mounting plate on which a block or the like arranged between the upper blade and the lower blade and cut is mounted. It is characterized by. In a second aspect of the invention, one and the other ring member having a diameter larger than the diameter of the rotating shaft is fitted and fixed on both left and right sides of the rotating shaft, and the upper surface of the upper blade mounting member is fixed. Is characterized in that the outer peripheral surface of one of the ring members and the other of the ring members are in contact with each other.

[0007]

According to the above cutting device for blocks and the like according to the first aspect of the invention, the one and the other support shafts formed on the left and right end surfaces of the rotary shaft are eccentric to the rotary shaft. Therefore, when the rotary shaft is rotated by operating the rotary operation lever, the upper blade mounting member whose upper surface is in contact with the peripheral surface of the rotary shaft and whose upper surface is provided with the upper blade is gradually moved. It is moved downward, and eventually the tip of the upper blade comes into contact with the upper surface of the block or the like. Then, when the rotating shaft is further rotated by rotating the operation lever, the upper blade is further moved in the direction of the block or the like, while the rotating shaft for moving the upper blade mounting member downward is one or more. Since the flat plate, the lower blade mounting member, and the lower blade are connected by the connecting member via the other support shaft, the one and the other bearings, and the bearing fixing member, the entire body including the lower blade is raised. Thus, the block and the like are cut by the cooperation of the upper blade and the lower blade. By rotating the rotation operation lever in the opposite direction, the upper blade and the lower blade are returned to their initial positions. Therefore, according to the cutting device for blocks and the like according to the present invention, it is possible to perform the cutting work for blocks and the like safely and promptly by the turning operation of the turning operation lever,
Since the block and the like are cut by the upper blade and the lower blade, it is possible to cut accurately at a predetermined cutting position. Also, in this device, for the upper blade or the lower blade,
The cutting force acts evenly, for example, because the cutting force does not gradually act on the block or the like from one end side of the upper blade, the combination with the above-mentioned upper blade and lower blade is considered. It is possible to cut at a more accurate position. In the cutting device for blocks and the like according to the second aspect of the invention, one and the other ring members having a diameter larger than the diameter of the rotating shaft are fitted and fixed to the rotating shaft, and Since the upper surface is in contact with the outer peripheral surfaces of the one and the other ring members, the block or the like can be cut by rotating the rotating operation lever with a force smaller than that of the first invention. As a result, the length of the rotation operation lever can be shortened.

[0008]

Embodiments of the present invention will now be described in detail with reference to the drawings. As shown in FIG. 1 or 2, a cutting device 1 for blocks and the like according to this embodiment includes a housing 2, an upper block 3 which is housed in the housing 2 and in which an upper blade described later is arranged, A lower block 4 housed in the housing 2 and arranged below the upper block 3 and having a lower blade described later, and a rotation operation lever 5 for operating the cutting device 1 such as this block,
It is composed of one and the other mounting plates 6 and 7 on which blocks and the like are mounted.

The housing 2 is, as shown in FIG.
First to fourth columns 10, 1 formed in a rectangular parallelepiped shape
1, 12, 13 and a left side plate 14 having one end welded to the outer surface of the first support column 10 and the other end welded to the outer surface of the second support column 11, and one end of the third support column 12 The right side plate 15 is welded to the outer side surface and the other end is welded to the outer side surface of the fourth support column 13, and one end is welded to the upper end side of the inner side surface of the second support column 11 and the other end is the fourth support column 13. An upper horizontal stake 16 welded to the upper end side of the inner side surface of the slab, and one end parallel to the upper horizontal stake 16 and the other end welded to the lower end side of the second support post 11 and the fourth support post 13 Of the first lower horizontal bar 17 welded to the lower end side of the second column, and the second lower end of the second column formed by welding one end to the inner side surface of the lower end side of the first column and the other end to the inner side surface of the third column 12. The lower horizontal stile 18 is provided. The other mounting plate 7 is fixed to the upper surface of the first lower horizontal sill 17 by a screw (not shown), and one mounting plate 6 is illustrated on the upper surface of the second lower horizontal slat 18. Not fixed by screws. And the first
The lower ends of the support columns 10 and the second support columns 11 are welded to the upper surface of the left side support plate 19 having a U-shaped vertical section, and the lower ends of the third support column 12 and the fourth support column 13 are welded. Is
It is welded to the upper surface of the right side support plate 20 having a U-shaped vertical cross section. Further, a bottom horizontal sill 21 formed in a concave shape is formed from the inner side surface of the left side support plate 19 to the inner side surface of the right side support plate 20. As shown in FIG. 3, the left side support plate 19 and the right side support plate 20 are formed with bolt insertion holes (reference numerals are omitted) having threads formed on the inner peripheral surfaces thereof. Bolts 22 and 23 are screwed into the holes as height adjusting members for adjusting the height of the lower block 4, which will be described later.

Further, as shown in FIGS. 2 and 3, axle support pieces 24, 25 are provided on the outer surfaces of the left side support plate 19 and the right side support plate 20 which form the housing 2, respectively.
Are welded, the axle 26 is inserted through insertion holes (not shown) formed in the axle support pieces 24, 25, and wheels 27, 28 are fixed to the left and right ends of the axle 26. In addition, on the front surface of the bottom horizontal sill 21, as shown in FIG. 1, the main cutting device 1 is prevented from tipping over during use, and as shown in FIG.
A fall prevention member 30 having a handle 30b to be gripped by an operator when moving is fixed. The fall prevention member 30 has a cylindrical body 30a having a base end welded to the front surface of the bottom horizontal sill 21 and a cylindrical body 30a formed at the center.
And a handle 30b formed by welding the tip of the handle in a direction orthogonal to the longitudinal direction of the cylindrical body 30a, and the overall shape is T-shaped. Also, this housing 2
Has a substantially U-shaped handle 31 fixed to the outer surface of the first support column 10 and the outer surface of the second support column 11, on the left side surface thereof.
On the right side, the outer surface of the third support column 12 and the fourth support column 1
A grip 32, which is fixed to the outer side surface of 3 and has a substantially U-shape, is provided.

Next, the upper block 3 which constitutes the present apparatus 1
Will be explained. As shown in FIG. 1, the upper block 3 includes a bearing fixing member 40 that has an opening on the lower surface side and is formed into a rectangular parallelepiped outer shape. The bearing fixing member 40 has first and second openings 40a and 40b formed on both left and right side surfaces, and a third opening 40c through which the rotation operation lever 5 moves from the upper surface to the front surface. Has been formed. Then, as shown in FIG. 2, one and the other bearings 41, 42 are fixed by bolts 43, 44 on both left and right sides within the bearing fixing member 40. Then, as shown in FIG. 5, the one bearing 41 is provided with an insertion hole 41a in which one support shaft 46 protruding from the left end surface of a rotation shaft 45 described later is rotatably inserted and supported. Is formed on the other bearing 42.
An insertion hole 42a is formed in which the other support shaft 47 protrudingly provided on the right end surface of the above is rotatably inserted and supported. Further, on the lower surfaces of the one and the other bearings 41 and 42,
Recesses 41b and 42b are formed through which the left and right sides of an upper blade mounting member 50, which will be described later, are inserted. A rotating shaft 45 is rotatably supported in the bearing fixing member 40 by the one and the other bearings 41 and 42, and the left and right end surfaces of the rotating shaft 45 have the one or the other. Spindle 4
6, 47 are integrally formed with the rotating shaft 45. Then, on the upper surface of the rotating shaft 45, a circular recess 45a into which one end of the rotating operation lever 5 for rotating the rotating shaft 45 is inserted is formed. The one and the other support shafts 46 and 47 have an outer diameter smaller than the outer diameter of the rotating shaft 45, and are formed at positions eccentric to the shaft center of the rotating shaft 45. Has been done.

Further, at the left and right ends of the rotary shaft 45, one and the other ring members 51 and 52 having a diameter larger than that of the rotary shaft 45 are externally fitted. An upper blade mounting member 50 is arranged below the rotary shaft 45.
As shown in FIG. 5, the upper blade attachment member 50 is a plate body formed to have the same length as the length from one end of one support shaft 46 to the other end of the other support shaft 47. Alternatively, as shown in FIG. 6, the rotary shaft 45 is supported by the rotary shaft 45 via one and the other U-shaped bolts 54 and 55 that are formed in a U shape and have the rotary shaft 45 inserted therein. , One end side is provided with a recess 41b formed on the lower surface of the one bearing 41,
Further, the other end side is a recess 4 formed on the lower surface of the other bearing 42.
It is stored in 2b. Both ends of the one U-shaped bolt 54 are fixed to L-shaped metal fittings 56 and 57 fixed to the front surface and the back surface of the upper blade mounting member 50 with bolts and nuts. The fixing structure of the other U-shaped bolt 55 is also supported by the upper blade mounting member 50 via the L-shaped metal fitting 58 shown in FIG. 5, similarly to the above-mentioned one U-shaped bolt 54.
Then, on the lower surface of the upper blade mounting member 50, a groove 50a is formed from one end to the other end of the upper blade mounting member 50, as shown in FIGS. 6 and 7, and in the groove 50a. Stores an upper blade 60 for cutting a block or the like. The upper blade 60 has a square cross section, and is attached to the lower surface of the upper blade mounting member 50 by a plurality of screws 61 and 62 screwed to the left and right sides of the groove 50a. Therefore, when the tip of the upper blade 60 is damaged, the screws 61 and 62 can be removed, rotated, and reattached to be used four times in total. Further, as shown in FIGS. 1 and 5, one and the other connecting rods 65 and 66 are rotatably attached to the bearing fixing member 40. The one and the other connecting rods 65 and 66 are formed in a long and thin columnar shape, screws are engraved on the outer peripheral surface, and operation handles 65a and 66a for rotating operation are fixed to the upper end. Has been done. Although not shown in FIGS. 1 to 5, the cutting device 1 for cutting a block or the like according to this embodiment, as shown in FIG. 6, has a front and back side of the box-shaped bearing fixing member 40. A protective cover 63 is attached to the above in order to prevent fragments and the like that may occur when the block or the like is cut.

Next, the lower block 4 provided with the lower blade will be described in detail. As shown in FIG. 8, the lower block 4 is a flat plate 7 having a rectangular planar shape.
0, a lower blade mounting member 71 fixed to the upper surface of the flat plate 70 by a bolt (not shown), and the lower blade mounting member 7
And a lower blade 72 attached to 1. The lower blade mounting member 71 has the same configuration as the upper blade mounting member 50, and a groove 71a in which the upper blade 72 is disposed extends from one end to the other end of the lower blade mounting member 71 on the upper surface. Has been formed. A plurality of screw holes 71b, 71 are provided on the upper surface of the lower blade mounting member 71 and on both the left and right sides of the groove 71a.
c, 71d are formed, and the lower blade 72 has these screw holes 7
Screws 73, 74, 7 screwed into 1b, 71c, 71d
It is designed to be fixed by 5. Further, on the upper surface of the flat plate 70 and on both the left and right sides of the lower blade mounting member 71, one and the other connecting pipes 76, 77 having screws 76a, 77a formed therein are projectingly provided. As described above, the present device 1 is configured such that the one connecting rod 65 is screwed into the one connecting pipe 76, and the other connecting rod 66 is screwed into the other connecting pipe 77. Has been done. Also, on the lower surface of the flat plate 70, vertical plates 78 facing each other in a direction orthogonal to the flat plate 70,
One of the vertical plates 78, 79 is welded to one end plate 80 of which one end of the vertical plate 78, 79 is in contact with the upper end of the bolt 22 when the lower block 4 is housed in the housing 2.
Is welded, and the other contact plate 81 with which the upper end of the bolt 23 abuts is welded to the other end side.

In the upper block 3 and the lower block 4 constructed as described above, as shown in FIG. 2, the one connecting bar 65 is screwed into the one connecting pipe 76, and the other connecting bar 65 is screwed. The connection bar 66 is integrally connected by being screwed into the other connection pipe 77, and the upper block 3 and the lower block 4 thus connected are housed in the housing 2. . The one and the other mounting plates 6 and 7 shown in FIG. 1 have a structure in which the upper block 3 and the lower block 4 are housed in the housing 2 and then the first lower horizontal bar 1 which constitutes the housing 2.
It is attached to the upper surface of 7 or the second lower horizontal stile 18 by welding or screws not shown. In addition, between the one mounting plate 6 and the other mounting plate 7, a lower blade 72 disposed below is attached so as to form an interval at least capable of protruding upward.

The operation of the cutting device 1 such as the block according to the present embodiment described above will be briefly described below while explaining how to use the cutting device 1. First, as shown in FIG. 7, the block B to be cut is mounted on the upper surfaces of the one and the other mounting plates 6 and 7, but at least the interval between the upper blade 60 and the lower blade 72 is cut in advance. The interval is longer than the height of the block B, and the interval is shorter than the height of the block B when the upper blade 60 and the lower blade 72 approach each other by the turning operation of the turning operation lever 5 as described later. It is set by rotating the operation handles 65a and 66a. Also, as will be described later, when the turning operation lever 5 is turned,
The lower blade 72 is moved upward from between the mounting plates 6 and 7, and the bolts 22 and 23 are adjusted in advance so that the upper blade 60 and the lower blade 72 are positioned parallel to the block B to be cut. Further, in the state shown in FIG. 7, a gap is formed between the upper ends of the one and the other U-shaped bolts 54, 55 and the rotating shaft 45.

After mounting the block B on the upper surfaces of the one and the other mounting plates 6 and 7 as described above, the rotary operation lever 5 is rotated counterclockwise in FIG. Then, by the turning operation of the turning operation lever 5, the turning shaft 45 is turned about the one and the other support shafts 46 and 47. At this time, the rotating shaft 45 is formed at a position eccentric from the one and the other supporting shafts 46 and 47, and the rotating shaft 45 and the one and the other U-shaped bolts 54 and 55.
Since a gap is formed between the one and the other ring members 5 fixed to the left and right sides of the rotary shaft 45.
Upper blade mounting member 5 whose upper surface is in contact with the outer peripheral surfaces of 1, 52
0 is gradually lowered in the block B direction while being in contact with the outer peripheral surfaces of the one and the other ring members 51 and 52 and being guided by the recesses 41b and 42b formed in the one and the other bearings 41 and 42. Then, as shown in FIG. 9, the entire upper blade 60 comes into contact with the upper surface of the block B. Further, in this state, the rotating shaft 45 and one and the other U
The space between the V-shaped bolts 54 and 55 is narrower than that in the state shown in FIG. 7, but a slight gap is still formed. When the rotation operation lever 5 is further rotated, the upper blade 60 is further rotated.
Is lowered in the direction of the block B, but the upper block 3 including the rotating shaft 45 for lowering the upper blade mounting member 50.
And the lower block 4 to which the lower blade 72 is attached are connected to the one and the other connecting rods 65 and 66 through the one and the other connecting pipes 76 and 77. Simultaneously with the block 4, it is moved slightly upward (about 20 mm). Therefore,
As shown in FIG. 10, the upper blade 60 apparently maintains the position shown in FIG. 9, while only the lower blade 72 is moved upward.
As a result, the block B is cut by the upper blade 60 and the lower blade 72.

As described above, according to the cutting device 1 for a block or the like according to the present embodiment, the upper blade 60 and the lower blade 72 move close to each other and cooperate with each other so as to be mounted on the upper surfaces of the mounting plates 6 and 7. Since the placed block B is cut, it can be cut at an accurate position. Further, according to the present device 1, since the cutting force acts evenly on the block B from one end to the other end of the upper blade 60 and the lower blade 72,
Whether the block B is thin or thick, an appropriate cutting pressure is applied according to the thickness, so that damage due to cutting is very small, and the block B can be easily cut even if its surface is not flat. Further, since the fall prevention member 30 is fixed to the housing 2, the device 1 does not fall even when the turning operation lever 5 is turned, and further, as shown in FIG. Since the protective cover 63 is attached, as shown in FIG. 10, the block B is cut into _one block B ₁ and the other block B _2, and the other block B ₂ is oriented in the direction in which the worker is located. Even if it is moved or broken pieces (not shown) are scattered, it does not damage the operator's foot or the like.

Further, in the present apparatus 1, the housing 2 is provided with the one and the other wheels 27 and 28, and the handle 30b is formed at the tip of the fall prevention member 30, so that FIG. As shown, the device 1 can be easily moved to another location. In addition, the upper blade 60 and the lower blade 72
The interval between and can be easily adjusted by rotating the operation handles 65a and 66a. Further, the height adjustment of the lower blade 72 and the one and the other mounting plates 6, 7 and the horizontal adjustment of the upper block 3 and the lower block 4 are performed by the bolt 2
It can be easily adjusted by 2, 23.

In particular, in the cutting device 1 for a block or the like according to this embodiment, one and the other ring members 5 having a diameter larger than the outer diameter of the rotary shaft 45 are provided on both the left and right sides of the rotary shaft 45.
1, 52 are fixed, and the outer peripheral surfaces of the ring members 51, 52 and the upper surface of the upper blade mounting member 50 are in contact with each other, so that the frictional resistance is greatly reduced, and thereby the block is applied with a small force. B can be cut,
Further, the length of the rotary operation lever 5 can be shortened. In the present embodiment, the rotation shaft 45 is
Although the one and the other ring members 51 and 52 are arranged on both the left and right sides of the drawing, the present invention is not necessarily provided with the one and the other ring members 51 and 52, and the rotation is not limited. The upper blade mounting member 5 is directly attached to the peripheral surface of the member 45.
It is also possible to use a cutting device such as a block having a structure in which the upper surface of 0 is fold contact.

Further, in the cutting device 1 for cutting a block or the like according to the above embodiment, the device 1 for cutting a block B having a relatively short length has been illustrated and described, but a long block or a natural stone or the like is used. As a device for cutting into several small blocks, a cutting device 90 such as a block shown in FIG. 11 is used.
As described above, the base ends of the horizontally long one and the other mounting members 92 (the reference numerals of the one mounting member are omitted) are welded from the left and right sides of the front surface of the housing 91, and these mounting members are welded. The plate-shaped plate members 93 and 94 may be fixed to the upper surface of 92. The tip of each of the mounting members 92 is bent in a substantially V shape so that the tip comes into contact with the ground, and one of the mounting members and the other of the mounting members 92 are connected to the middle portion. The connecting bar 92a is formed as a handle. Wheels 95 used when the apparatus 90 is moved are provided at the lower end of the housing 91, and a rotation operation lever 96 is attached at the upper end. The housing 91 houses the upper block 3 and the lower block 4 according to the above-described embodiment.

[0021]

As is apparent from the above description of the embodiments of the present invention, the cutting device for blocks and the like according to the first invention described above is formed on the left and right end surfaces of the rotary shaft. Since the one and the other support shafts are eccentric to the rotation shaft, when the rotation shaft is rotated by operating the rotation operation lever, the upper surface is in contact with the peripheral surface of the rotation shaft. The upper blade mounting member having the lower blade disposed on the lower surface is gradually moved downward, and eventually the tip of the upper blade is brought into contact with the upper surface of the block or the like. Then, when the rotating shaft is further rotated by rotating the operation lever, the upper blade is further moved in the direction of the block or the like, while the rotating shaft for moving the upper blade mounting member downward is one or more. Through the other support shaft, one and the other bearing, the bearing fixing member, by the connecting member,
Since it is connected to the flat plate, the lower blade mounting member, and the lower blade, the entire body including the lower blade is lifted, and the block is cut by the upper blade and the lower blade working together. To be done. The upper blade and the lower blade are returned to their initial positions by rotating the rotating operation lever in opposite directions. Therefore, according to the cutting device for blocks and the like according to the present invention, it is possible to safely and quickly perform the cutting work of blocks and the like by the turning operation of the turning operation lever, and to cut the blocks and the like by the upper blade and the lower blade. Since it is to be cut, it can be cut accurately at a predetermined cutting position. Further, in this device, the cutting force is evenly applied to the upper blade or the lower blade, and for example, the cutting force is not gradually applied to the block or the like from one end side of the upper blade. Combined with the configuration of cutting with the upper blade and the lower blade, it is possible to cut at a more accurate position. In the cutting device for blocks and the like according to the second aspect of the invention, one and the other ring members having a diameter larger than the diameter of the rotating shaft are fitted and fixed to the rotating shaft, and Since the upper surface is in contact with the outer peripheral surfaces of the one and the other ring members, the block or the like can be cut by rotating the rotating operation lever with a force smaller than that of the first invention. As a result, the length of the rotation operation lever can be shortened. Therefore, according to the present invention, the block or the like can be cut extremely safely as compared with the case where a diamond cutter is used, and the blade mark of the cutter does not remain on the cut surface.
Therefore, when the natural stone is cut, the cut surface can be directly adhered to the wall or the like without polishing, and the natural texture of the natural stone can be provided on the surface of the wall. Further, since the cutting work of blocks and the like is sufficient by simply turning the turning operation lever, the work of cutting a large number of blocks and the like can be performed extremely quickly, and therefore the construction work of the blocks and the like can be performed. Can be shortened.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a cutting device for blocks and the like according to an embodiment of the present invention.

FIG. 2 is a front view showing a cutting device such as a block.

FIG. 3 is a front view showing a state in which a cutting device such as a block is disassembled.

FIG. 4 is a right side view showing a state in which a cutting device such as a block is moved.

FIG. 5 is a front cross-sectional view showing a state in which an upper block and a lower block are partially broken.

FIG. 6 is a side sectional view showing a main part of a state before a block is cut by a cutting device for a block or the like according to an embodiment.

FIG. 7 is a side sectional view of the upper block.

FIG. 8 is a perspective view showing a state where a lower block is partially disassembled.

FIG. 9 is a view showing a main part of a cutting device such as a block.
It is a side sectional view showing the state after rotating by 5 degrees.

10 is a side cross-sectional view showing a main part of a cutting device such as a block, showing a state after the rotary operation lever is further rotated from the state shown in FIG. 9 to cut the block. It is a figure.

FIG. 11 is a side view showing another embodiment of the present invention.

FIG. 12 is a perspective view showing a conventional cutting device such as a block.

[Explanation of sign]

 1 Cutting Device such as Block 5 Rotating Operation Lever 6 One Mounting Plate 7 Other Mounting Plate 40 Bearing Fixing Member 41 One Bearing 42 Other Bearing 45 Rotating Shaft 46 One Support Shaft 47 The Other Support Shaft 50 Upper blade mounting member 51 One ring member 52 Other ring member 60 Upper blade 65 One connecting rod 66 One connecting rod 70 Other plate 71 Lower blade mounting member 72 Lower blade 76 One connecting pipe 77 Another connecting pipe

Claims (2)

[Claims] 1. A rotating shaft formed in a cylindrical shape, a rotating operation lever attached to the rotating shaft, and horizontally protruding from left and right end surfaces of the rotating shaft, and One and the other support shafts that are eccentric to the rotation shaft, and one bearing that rotatably supports the one support shaft,
The other bearing that rotatably supports the other support shaft, the upper blade mounting member whose upper surface is in contact with the peripheral surface of the rotating shaft, and the lower blade of the upper blade mounting member. Upper blade,
A bearing fixing member formed by fixing one of the bearings and the other bearing, a lower blade arranged below the upper blade, a lower blade mounting member supporting the lower blade, and a lower blade. A flat plate fixed to the lower surface of the blade mounting member, a connecting member connecting the flat plate and the bearing fixing member, a block arranged between the upper blade and the lower blade and cut, and the like are mounted. A cutting device for a block or the like, comprising: a placing plate to be placed. 2. One of the ring members having a diameter larger than the diameter of the rotating shaft is fitted and fixed on both left and right sides of the rotating shaft, and the upper surface of the upper blade mounting member has one of these ring members. And a cutting device for a block or the like, which is in contact with the outer peripheral surface of the other ring member.