JP2002113377A - Bilding breaker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bilding breaker capable of facilitating wrecking work of a concrete bilding. SOLUTION: This breaker is provided with a pair of breaking arms 1011 and 1012 which are rotatable with first pins 1051 and 1052 as the centers respectively and have sides 1021 and 1022 each being opposite to the other respectively wherein the rotation of each of the breaking arms 1011 and 1012 is performed by driving the corresponding one of hydraulic cylinders 1071 and 1072 each of which is connected to the corresponding one of second end parts 1061 and 1062 positioned apart from the sides 1021 and 1022 respectively, the breaking arms 1011 and 1012 are bent each in the same direction as the bending direction of the other and provided with cutter parts 1031 and 1032 respectively, the repulsion force applied from a material to be broken to the cutter parts 1031 and 1032 can be reduced by adjusting the angle between the surface of the material to be broken and each of the cutter parts 1031 and 1032, brought into contact with the surface of the material to be broken, and further, by bending the breaking arms 1011 and 1012, the front end of each of the cutter parts 1031 and 1032 can be observed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a pair of crushing arms having rotatably connected first ends of sides having cutter portions facing each other, and having a second end separated from the respective sides of the crushing arms. The present invention relates to an improvement of a building crusher in which a hydraulic cylinder is connected to an end of a building.

[0002]

2. Description of the Related Art Conventionally, when a concrete building is dismantled, a building crusher is attached to a power shovel as an attachment as shown in FIG. In FIG. 2, 201 is a construct crusher, 202 is a boom, and 203 is a caterpillar.

FIG. 3A is a perspective view showing the structure of a conventional building crusher, and FIG. 3B is a plan view thereof.
012 is a pair of crushing arms, 3021 and 3022 are mutually facing cutter portions of the crushing arms 3011 and 3012, and 3031 and 3032 are the cutter portions 3021 and 3021.
The side having 3022, 3041 and 3042 are sides 303
The first end of each of the first and third 3032 is a pin for rotatably connecting the first end 3041 and 3042, and the first and second sides 3031 and 3062 are the respective sides 3031 and 30.
A second end set at a location remote from 32, 3071,
3072 has one end of the second end 3061
The hydraulic cylinder is connected to each of the cylinders 3062. 308
Is an arm support having a rectangular cross section, and the first ends 3041 of the crushing arms 3011 and 3012 with respect to each other.
, And 3042 are connected and the hydraulic cylinders 3071 and 3072 are housed to support the other ends. Further, the first ends 3041 and 3042 and the second ends 3061 of the crushing arms 3011 and 3012 are further supported. 3
062 is stored. Reference numeral 309 denotes a disk-shaped flange for fixing the arm support 308, and reference numeral 3010 denotes a mounting bracket, which is mounted on the tip of the boom 202 as shown in FIG.

[0004]

In the work of dismantling a concrete building, for example, as shown in FIG.
When dismantling the crushing arm 402, first,
03 between the upper and lower surfaces of the floor surface 401 and the floor 40
The disassembly starts from the middle part 404 of FIG. Middle part 40
When the dismantling of No. 4 is completed, the dismantling is performed from the near side to the back side along the wall surface 405. When the concrete floor surface 401 remaining by this operation is viewed from above, it has a waveform as shown in FIG. This seems to be because: The crushing arm crushes the concrete so as to be substantially perpendicular to the floor surface, but when moving from the near side to the back side, the crushing arm 402 is moved to the wall surface 405 as shown in FIG.
The crushing arm 402 receives a large rebound in the normal direction from the concrete floor 401 at the time of crushing. . As a result, the floor near the wall surface is cut into a waveform. The operator must further remove the concrete remaining on the corrugations to facilitate the subsequent work of falling down the wall.

[0005] Further, for example, in the case of dismantling a column left behind a floor surface disassembled as described above and a disassembled wall surface, the lower portion is crushed and dismantled. However, it was difficult for the operator to see the tip of the crushing arm, and the work efficiency was poor.

Further, when disassembling an edge of a building such as a veranda from the inside of a building, it is easier to apply force when the tip of the crushing arm is as perpendicular as possible to the concrete surface. It was difficult to increase the angle with the concrete surface, so that it was difficult to apply force to the tip of the crushing arm, making it difficult to work.

Further, there is an operation of cutting a support pile for removing soil below the underground beam in order to remove the underground beam remaining in the ground. However, as shown in FIG. Without digging deeply, the crushing arm 602 could not reach the support pile 603.

An object of the present invention is to provide a building crusher which facilitates demolition work of a concrete floor.

It is an object of the present invention to provide a building crusher in which the tip of the crushing arm can be seen.

[0010] An object of the present invention is to provide a building crusher capable of easily dismantling an edge protruding from a building from the inside of the building.

An object of the present invention is to provide a construction crusher which facilitates the work of cutting a support pile of an underground beam.

[0012]

In order to solve the above-mentioned problems, a construction crusher according to the present invention rotatably connects a first end of a side of a pair of crushing arms having cutter portions facing each other, In a building crusher in which a hydraulic cylinder is connected to a second end of the crushing arm remote from each of the sides, the crushing arm is curved in the same direction.

[0013]

The construction crusher according to the present invention operates as follows. The pair of crushing arms is rotatable about the first detail. This rotation is performed by driving a hydraulic cylinder connected to a second end of the crushing arm remote from the respective sides. Each of the crushing arms is curved in the same direction, and the repulsion from the crushed portion can be reduced by the cutter portion depending on the angle at which the cutter portion of the crushing arm intersects the crushed object. Also,
Due to the curvature, the tip can be visually observed, and the work becomes easy. Alternatively, it is easier to disassemble the edge that protrudes from the building, and it is easier to perform the work below the buried underground by the curved portion.

[0014]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of a construction crusher according to the present invention. FIG. 1 is a left side view (FIG. 1 (a)), a plan view (FIG. 1 (b)) and a front view (FIG. 1 (c)) for explaining one embodiment. In FIG.
1, 1012 is a pair of crushing arms, 1021, 1022
Are the sides of the crushing arms 1011 and 1012 facing each other, 1031 and 1032 are the sides 1 facing each other.
Cutter part provided in 021, 1022, 1041, 10
42 is a first end of each of the sides 1021 and 1022, 1051 and 1052 are pins for rotatably connecting the first ends 1041 and 1042, 1061 and 106
Reference numeral 2 denotes a second end set apart from each of the sides 1021 and 1022 and substantially aligned with the first ends 1041 and 1042. Reference numerals 1071 and 1072 denote one ends of the respective second ends 1061 , 1062. Reference numeral 108 denotes an arm support having a rectangular cross section, which connects and supports the first ends 1041 and 1042 of the crushing arms 1011 and 1012 and accommodates the hydraulic cylinders 1071 and 1072 to support the other ends. And the first ends 1041, 104 of the crushing arms 1011, 1012
2. The second ends 1061 and 1062 are stored. 109
Is a disk-shaped flange for fixing the arm support 108, and 1010 is a mounting bracket. Plan view (Fig. 1
In (b)), the mounting bracket 109 is partially omitted.

The pair of crushing arms 1011 and 1012 have curved portions 1011a and 1012a. This curved part 10
Assuming the conventional flat crushing arms 1011b and 1012b as shown in FIG. 7, 11a and 1012a are both sides 1011 of the crushing arms 1011 and 1012.
c, 1012c are in the original positions, and the center side 10
21 and 1022 are connected to the cutter 103
Crushing arm 1011b assumed with 1,1032,
The plane 1012b is curved by the same distance in the direction perpendicular to the plane. The amount of bending the distal ends of the crushing arms 1011 and 1012 is, for example, 30 degrees to 35 degrees.

In the work of dismantling a concrete building, when the floor is dismantled in the same manner as described in the prior art, first, the cutter portion of the crushing arm is engaged with the upper and lower surfaces of the floor, and the middle part of the floor is used. Start dismantling from. When the disassembly of the intermediate portion is completed, the disassembly is disassembled from the near side to the far side along the wall surface. At this time, as shown in FIG. 8, the worker sets the convex sides of the curved portions 1011a and 1012a to face the concrete 801 to be newly deleted.
In this state, the crushing arms 1011 and 1012 are opened and closed by making the cutter section bite the upper and lower surfaces of the floor 802.
When crushing the concrete 801, use the crushing arm 10
An operation is performed to advance the building crusher while opening and closing 11, 1012 (FIG. 8A). Concrete 801
The angle α at which the crushing arms 1011 and 1012 contact the crushing surface of the concrete 801 decreases with the crushing of the concrete 801, and the crushing arms 1011 and 1012
8 (Fig. 8)
(B)). At this time, the crushing arms 1011 and 1012 that are closed when crushing are curved so as to slightly avoid the repulsion without receiving a large repulsion in the normal direction as described in the related art.

Further, when dismantling the pillars remaining after dismantling the floor surface and the wall surface, the lower portion is crushed from the near side to the front side. At this time, as shown in FIG. 9, even if the distal ends of the crushing arms 1011 and 1012 are directed downward, the downward angle at which the distal end can be seen from the operator's eyes e becomes large, and the column 901 is made as small as possible. It can meet the requirement that it be crushed from below.

Further, when dismantling an edge of a building such as a veranda from the inside of the building, it is easier to apply force if the tip of the crushing arm is as perpendicular as possible to the concrete surface. In the embodiment, the bending portions 1011a and 1012a
The ends of the crushing arms 1011 and 1012 provided with can be made to be close to a right angle. FIG. 10A shows a state in which it is pushed down from above the edge 1001 and dismantled, and FIG.
(B) shows a state in which the edge 1002 is dismantled by being pushed up from below. As shown in FIG.
The convex sides of the twelve curved portions 1011a and 1012a are directed away from the operator. By doing so, the distal end portions of the crushing arms 1011 and 1012 become close to a right angle to the concrete surface, force is easily applied, and work efficiency is improved.

Further, there is an operation of cutting a support pile for removing soil under the underground beam in order to remove an underground beam remaining in the ground. In this embodiment, the distal ends of the crushing arms 1011 and 1012 can be delivered to the support pile 1101 without digging the base portion of the underground beam too wide or deep as shown in FIG. At this time, the crushing arms 1011 and 1012
The work is performed with the convex sides of the curved portions 1011a and 1012a facing downward. The crushing arms 1011 and 1012 are on the ground 112
Even at a small angle β toward the curved portion 1011a,
Since 1012a is bent under the underground beam 1102, it can be easily inserted under the underground beam 1102, and it is not necessary to dig deeper or deeper.

In the above description, the structure shown in FIG. 1 has been described, but the structure shown in FIGS. 12 and 13 may be used. FIG. 12A is a plan view of one using a hydraulic cylinder for driving a crushing arm, and FIG. 12B is a perspective view. 12A and 12B, reference numerals 12011, 1211
012 is a pair of crushing arms; 12021 and 12022 are sides of the crushing arms 12011 and 12012 facing each other; 12031 and 12032 are cutter parts provided on the sides 12021 and 12022 facing each other;
Reference numerals 041 and 12042 denote first ends of the sides 12021 and 12022, 12051 and 12052 denote pins for rotatably connecting the first ends 12041 and 12042, 12061 and 12062 denote the respective sides 1221 and 12042.
021, 12022, said first end 1204
1 and the second set at the position located after 12042
End 1207 is the second end 12061, 1202
62 are hydraulic cylinders that connect both ends to each of them. 12
Reference numerals 081 and 12082 denote a pair of arm supports.
Of the crushing arms 12011 and 12012 so as to connect and support the ends 12041 and 12042 of the crushing arms 12011 and 12012. Reference numeral 1209 denotes the arm supports 12081 and 12
A disc-shaped flange 1210 for fixing 082 is a mounting bracket which is partially omitted and illustrated. In FIG. 12B, the upper arm support 12081 is indicated by a dashed line.

FIG. 13 (a) is a plan view of two hydraulic cylinders for driving the crushing arm, and FIG. 13 (b) is a perspective view. In FIGS. 13A and 13B, 1301
1,13012 is a pair of crushing arms, 13021,13
Reference numeral 022 denotes sides of the crushing arms 13011 and 13012 facing each other, 13031 and 13032 denote cutter parts provided on the sides 13021 and 13022 facing each other, and 13041 and 13042 denote the sides 13021 and 1321.
022, first ends 13051, 1305
2 are the first ends 13041 and 13042, respectively.
The pins 13061 and 13062 are rotatably connected to each other, and are second ends set at locations away from the sides 13021 and 13022 and in front of the first ends 13041 and 13042. 13071, 1307
Reference numeral 2 denotes a hydraulic cylinder, one end of which is connected to each of the second ends 13061 and 13062, and the other end is connected to members 13041a and 13042a which are extended when the first ends 13041 and 13042 intersect. It is a hydraulic cylinder. 13081 and 13082 are a pair of arm supports, which are connected to the intersection 1304c of the members 13041a and 13042a to form the crushing arms 13011 and 1
3012 on both sides to support them.
Reference numeral 1309 denotes a disk-shaped flange for fixing the arm support 1308, and reference numeral 1310 denotes a mounting bracket which is partially omitted and illustrated. In FIG. 13B, the upper arm support 13081 is indicated by a dashed line.

[0022]

As described above in detail, according to the present invention, the curved portion of the crushing arm makes it easy to disassemble the concrete floor surface, so that the tip of the crushing arm can be seen. The column can be easily dismantled, and the edge of the crushing arm with the curved part can be easily dismantled from the inside of the building, and the cutting work of the underground beam support pile can be easily performed. The construction crusher can be provided.

[Brief description of the drawings]

FIG. 1 is a left side view, a plan view, and a front view of an embodiment of a building crusher according to the present invention.

FIG. 2 is a diagram illustrating an attached state of a building crusher.

FIG. 3 is a perspective view and a plan view showing a configuration of a conventional building crusher.

FIG. 4 is a diagram illustrating a floor dismantling operation.

FIG. 5 is a diagram illustrating a state in which a floor is crushed by a conventional crushing arm.

FIG. 6 is a diagram illustrating an operation of removing an underground beam using a conventional crushing arm.

FIG. 7 is a perspective view for explaining the bending of the crushing arm according to the present invention.

FIG. 8 is a diagram illustrating a floor dismantling operation using the crushing arm according to the present invention.

FIG. 9 is a diagram illustrating a column dismantling operation using the crushing arm according to the present invention.

FIG. 10 is a diagram for explaining a work of dismantling an edge protruding from a building such as a veranda using a crushing arm according to the present invention.

FIG. 11 is a diagram illustrating a cutting operation of a supporting pile of an underground beam using a crushing arm according to the present invention.

FIG. 12 is a plan view and a perspective view of another embodiment of the present invention.

FIG. 13 is a plan view and a perspective view of another embodiment of the present invention.

[Explanation of symbols]

1011, 1012 ... crushing arm, 1021, 1022
... Side, 1031, 1032 ... Cutter part, 1041,1
042 first end, 1051, 1052 pin, 10
61, 1062 ... second end, 1071, 1072 ... hydraulic cylinder, 1081, 1082 ... arm support, 10
9 ... Flange, 1010 ... Mounting bracket, 1011a,
1012a ... bending part.

Claims (1)

[Claims] A hydraulic cylinder is connected to a first end of a side of the pair of crushing arms having cutter parts facing each other so as to be rotatable, and a second end of the pair of crushing arms remote from the respective side. A crushing machine, wherein the crushing arm is curved in the same direction.