JPH11193643A - Asbestos removing device, removing head and removing tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an asbestos removing device, a removing head and a removing tool which can restrain the scattering of an asbestos to the utmost and carry out a removing work efficient economically and in pont of time. SOLUTION: An asbestos removing device is a device for removing an asbestos provided on the wall face of a building, and is equipped with a moving truck 10, an articulated arm 11 and a removing head 12. The articulated arm 11 is turnably provided on the moving truck 2 and oscilatabily supports the removing head 12. The removing head 12 is equipped with a removing head case 30, an asbestos removing tool 31 and a bubble injection pipe 32. The asbestos removing tool 31 is equipped with a trapezoid member and a cutting member, and rotatably provided inside the removing head case 30. The cutting member is formed in a bent belt-shape and has a plurality of projections on the outside. The cutting member is attached to the outer edge of the trapezoid member at one end and mutually connected at the other end. The bubble injection pipe jets a bubble consistingof a drug to prevent the scattering of asbestos removed pieces.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an asbestos removing device, a removing head and a removing tool used for removing asbestos provided on a wall of an existing building.

[0002]

2. Description of the Related Art Asbestos has been used as a heat insulating material, a sound insulating material and a sound absorbing material which is sprayed onto a ceiling or a wall surface of a building made of concrete or the like and has a thickness of 1 cm to 4 cm.

[0003] However, when the asbestos is scattered due to deterioration or damage, there is a concern that the asbestos may affect a building user or a construction worker. For this reason, asbestos is currently banned. Also, in existing buildings using asbestos as a heat insulating material in the past, asbestos has been removed for the reasons described above.

Conventionally, asbestos provided by spraying on the wall of a building or the like has been removed by the following procedure. First, the entire work place is isolated from the outside by a curing sheet made of a vinyl sheet or the like, and is kept at a pressure lower than the atmospheric pressure using a ventilation device or the like.
Then, water or the like is infiltrated into the asbestos, and as shown in FIG. 5, an operator 102 scrapes off the asbestos 104 in the work place 101 using a removing tool 103 such as, for example, a wrench rod.

[0005] Asbestos remaining on the wall of the building after removal by the removal tool 103 is scraped off using a brush or the like. The asbestos that has been scraped off and scraped is collected and packed in a bag, and the asbestos remaining on the wall of the building is sealed with a chemical solution. Then, the cured sheet is washed with water or the like to remove asbestos attached to the sheet and packed in a bag.

[0006]

In the above-described conventional asbestos removing method, as shown in FIG. 5, when the operator 102 uses the removing tool 103 to scrape the asbestos 104, the removing tool 103 and the asbestos are removed. Due to the mechanical contact, as shown, the removed pieces of asbestos 104 are scattered in the work place 101.

For this reason, as shown in FIG. 6, the atmosphere inside the work place 101 is discharged to the outside 106 of the work place 101 by using a dust removing device 105 or the like. In order to suppress the dust concentration of the asbestos 104 discharged to the outside 106, it is necessary to improve the dust collection efficiency of the filter of the dust removal device 105. However, when the dust collection efficiency of the filter is improved, the filter becomes clogged or the like, and the atmosphere of the work place 101 becomes
May not be discharged to

Further, as described above, most of the asbestos removal work conventionally performed depends on the manual work of the worker 102, which is inefficient in terms of time and economy. Work has been done. Furthermore, worker 1
In No. 02, it is necessary to take sufficient dust-proof measures, for example, by wearing a protective suit or a dust-proof mask, and the workability is reduced.

Further, in the above-mentioned conventional asbestos removal method, the entire inside of the work place 101 is cured several times with a vinyl sheet or the like, and the entrance of the worker 102 and the entrance 107 of the removal tool 103 (see FIG. 6) is separated from the outside 106 by, for example, providing a separate section. For this reason, the labor and cost required for preparation such as the above-mentioned curing are increased.

[0010] Accordingly, an object of the present invention is to reduce asbestos scattering as much as possible in the work of removing asbestos from the walls of an existing building, thereby suppressing the influence on workers and economically in terms of time. Another object of the present invention is to provide an asbestos removing device, a removing head, and a removing tool that can efficiently perform a removing operation.

[0011]

According to a first aspect of the present invention, there is provided an asbestos removing apparatus for removing asbestos provided on a wall surface of a building, wherein the asbestos removing apparatus is provided with a moving part. A trolley, a multi-joint arm rotatably provided on the movable trolley, and a removing head provided at a tip of the multi-joint arm and removing means for removing the asbestos by pressing against a wall surface of the building. And a recovery unit provided on the movable trolley and recovering asbestos removed by the removal head.

[0012] The asbestos removing apparatus according to claim 2 is
The asbestos removing apparatus according to claim 1, wherein the removing head is pressed against a wall surface of the building, and a sealing unit that comes into close contact with the wall surface, and a foam ejecting unit that injects a foam made of a medicine toward the wall surface. And a supply unit for supplying foam to the foam injection means is provided on the movable carriage.

The removal head according to claim 3 is used in an apparatus for removing asbestos provided on a wall surface of a building, and provided with a sealing means that is pressed against the wall surface of the building and comes into close contact with the wall surface. A case, an asbestos removal tool rotatably provided inside the removal head case, comprising: a removal means for removing the asbestos pressed against a wall surface of the building; and A foam supply means for injecting foam made of a medicine toward the wall surface, a foam supply hose for supplying the foam to the foam injection means is connected, and a collection hose for collecting asbestos removal pieces in the removal head case is provided. It is characterized by being connected.

According to a fourth aspect of the present invention, there is provided a removing head according to the third aspect.
The removal head according to any one of claims 1 to 3, further comprising a pressing unit that urges the asbestos removal tool toward the wall surface.

[0015] The removing head according to the fifth aspect is the third aspect.
Alternatively, in the removing head according to claim 4, the asbestos removing tool is provided inside the removing head case so as to be movable along two directions intersecting each other.

[0016] The asbestos removal tool according to claim 6 is
A trapezoidal member rotated by a driving device, comprising a plurality of cutting members formed in a curved band shape and having a cutting blade for cutting asbestos on a surface located outside, wherein one end of each of the cutting members is trapezoidal. It is characterized in that it is attached to the outer edge of the member and the other end is connected to each other.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. The asbestos removing apparatus 1 shown in FIG. 1 is an apparatus for removing an asbestos 5a provided by spraying on a wall 5 such as a ceiling or a side wall of an existing building 2 shown in FIG. is there.

As shown in FIG. 1, the asbestos removing apparatus 1 includes a movable trolley 10, an articulated arm 11, a removing head 12, a collecting unit 13, a supply unit 14, and the like.
The mobile trolley 10 is movable on a floor 6 or the like in the work place 7.

The movable trolley 10 is provided with a swivel base 15 that can turn along an arrow K about an axis P indicated by a two-dot chain line in FIG. In the illustrated example, when the floor surface 6 is flat, the axis P is substantially perpendicular to the floor surface 6.

The articulated arm 11 is provided on the swivel 15. The articulated arm 11 is connected to the turntable 15
From the side, a first arm 16, a second arm 17, a head support 18, the arms 16, 17 and the support 1
First to third joint drive units 1 provided between
9, 20, 21 are provided. The first arm section 16 and the second arm section 17 each include a plurality of members formed in a rod shape.

The first joint drive section 19 is provided on the swivel base 15 and is connected to one end 16a of the first arm section 16. The first joint drive unit 19 is configured to
5, and is rotatable about an axis P, and supports the first arm 16 so as to be rotatable about the one end 16a.

The second joint drive section 20 includes the other end 16 b of the first arm 16 and the one end 17 of the second arm 17.
and a are connected to each other. The second joint driving unit 20
The first and second arms 16 and 17 are supported rotatably around the other end 16b and one end 17a, respectively.

The third joint drive section 21 connects the other end 17b of the second arm section 17 and the head support section 18 to each other. The third joint drive section 21 supports the second arm section 17 rotatably about the other end 17b, and also supports the head support section 18 rotatably.

Further, these joint driving parts 19, 20, 2
1 is driven by a driving device such as a motor or a cylinder (not shown) to stop at a desired position.

The head support 18 is provided with the removal head 12.
From a state in which an asbestos removing tool 31 described later is opposed to a wall surface 5 such as a ceiling, is swingably supported in a plurality of directions intersecting the axis P, for example, along arrows K1 and K2 in the drawing. ing. For this reason, the head support 18
Means that the removal head 12 is swingably supported in any direction crossing the axis P.

The head support 18 includes a first motor 22 rotatable along the arrow K1 and a second motor 23 rotatable along the arrow K2. By driving these motors 22 and 23, the head support 18 swings the asbestos removal tool 31 in any direction intersecting the axis P and directs it in a desired direction.

With the above-described configuration, the articulated arm 11
The drive device, the motors 22 and 23, and the like are driven to position the removal head 12 at a desired position and to direct the asbestos removal tool 31 in a desired direction.

As shown in FIG. 2, the removing head 12 includes a removing head case 30, an asbestos removing tool 31, and a foam injection tube 32. The removal head case 30
The asbestos removal tool 31 and the foam supply pipe 32 are built in, and are formed in a box shape having an opening 33 in a part.

The removal head case 30 is provided with the opening 33.
Is provided with a brush seal 35 as a sealing means in a peripheral portion 34 of the printer. The brush seal 35 is formed by bundling thin fibers made of nylon or the like, and is provided so as to surround the opening 33.

The brush seal 35 is mounted on the removing head 12.
When pressed against the wall surface 5, it comes into close contact with the wall surface 5. The brush seal 35 has a function of isolating the inside of the removal head case 30 from the work place 7 when the brush seal 35 is in close contact with the wall surface 5. Thus, the brush seal 35
This prevents the asbestos removal tool 31 from scattering the asbestos removal pieces H (shown in FIG. 3) generated by removing the asbestos 5 a to the work place 7.

The removal head case 30 is provided with the opening 33.
The collection pipe 36 is connected to a part located on the opposite side of the collection pipe 36.
The collecting pipe 36 has a collecting hose 56 to be described later of the collecting unit 13.
Is connected. Collection tube 36 of removal head case 30
Is swingably supported by the head support 18 so that the opening 33 faces the wall surface 5 or the like.

The foam injection tube 32 is formed of an annular pipe, does not protrude from the opening 33 when viewed from the side, and is provided along the edge of the opening 33 when viewed from above. The foam injection pipe 32 is provided with a plurality of foam injection nozzles 37 that open outward from the opening 33 of the removing head case 30 at substantially equal intervals in the circumferential direction. In addition, foam injection tube 3
2 is connected to a later-described foam supply hose 53 of the supply unit 14. Note that the foam injection pipe 32 and the foam injection nozzle 37 constitute a foam injection unit described in this specification.

With the configuration described above, the foam injection tube 32 is
When the supply unit 14 supplies a foam made of a chemical or the like for preventing the asbestos-removed pieces H from scattering, the foam injection nozzle 3
This foam is sprayed from 7 toward the asbestos 5a. The foam ejection tube 32 has a function of preventing the asbestos removal piece H from scattering from a slight gap between the removal head case 30 and the wall surface 5 by injecting foam.

The asbestos removal tool 31 includes a trapezoidal member 38.
And a plurality of cutting members 39 attached to the trapezoidal member 38. The trapezoidal member 38 has a plurality of hollow portions 40 formed in a disk shape and formed in the same shape at equal intervals in the circumferential direction.

The trapezoidal member 38 is, as shown in FIG.
A driving member 42 connected to an output end 41a of a motor 41 as a driving device is connected to substantially the center. This motor 41
Has a function of rotating the driving member 42 about its axis Q along the arrow J in the drawing.

The cutting member 39 is formed in a curved band shape. The cutting member 39 has a projection 43 as a shaving blade for shaving the asbestos 5a on a curved outer surface.
Are provided. One end of each of the cutting members 39 is attached to the outer edge 38a of the trapezoidal member 38 at equal intervals in the circumferential direction, and the other ends are connected to each other. As shown in FIG. 3, the other ends of the cutting members 39 connected to each other have an arc shape that is continuous with each other when viewed from the side. Note that the cutting member 39 constitutes a removing unit described in this specification.

Thus, the asbestos removal tool 31
The other end of the cutting member 39 is connected to each other, so that the tip portion is formed like an acorn. Further, it is formed hollow by a space surrounded by a plurality of cutting members 39 and the like. In the asbestos removing tool 31, a top portion 44 formed by connecting the other ends of the cutting member 39 to each other is located on an extension of the axis Q of the driving member 42.

The asbestos removing tool 31 is surrounded by the foam supply pipe 32 inside the removing head case 30 and the cutting member 39 is connected to the opening 3.
3 is provided so as to protrude therefrom. The asbestos removal tool 31 is mounted in the removal head case 30 by a plurality of support members 45. The support member 45 is
It is fixed inside the removal head case 30 so as not to hinder the rotation of the driving member 42 and the like.

The asbestos removal tool 31 is
1 rotates the trapezoidal member 38 and the cutting member 39 along the arrow J shown in FIG.
Will scrape asbestos 5a. Cutting member 39
As a result, the asbestos removing tool 31 formed in an acorn shape can easily scrape the asbestos 5a as compared with a conventionally used brush type or propeller type removing tool.

The supply section 14 is provided on the movable carriage 10 as shown in FIG. The supply unit 14 includes a supply tank 50 that contains a chemical for preventing the asbestos-removed pieces H from scattering, a foam generator 51, a compressor 52, a foam supply hose 53, and the like.

The supply section 14 forms the medicine in the supply tank 50 into a foam by a foam generator 51, and foams the above-mentioned foam by the foamer supply hose 53 by a compressor 52 or the like.
Is supplied to the foam injection tube 32 of the removal head 12 via the

The collecting section 13 is provided on the movable trolley 10 as shown in FIG. The collection unit 13 includes a blower 54 as a collection device, a collection tank 55, and a collection hose 56.
, An exhaust hose 57, an exhaust duct 58, and the like.

The collection tank 55 is connected to a collection hose 56 and is connected to a blower 54 via a suction hose 59.
Is connected to The blower 54 is connected to a collection hose 56 via a suction hose 59 and the like, and is connected to an exhaust duct 58 via an exhaust hose 57.

The blower 54 sucks gas and the like in the recovery hose 56 through the suction hose 59 and the like, and exhausts the gas from the exhaust duct 58 through the exhaust hose 57.

When the blower 54 is operated, the recovery unit 13 removes the asbestos removal pieces H (FIG. 3) generated by the asbestos removal tool 31 and accumulated in the removal head case 30.
Is sucked through the collection hose 56 together with the foam supplied by the supply unit 14. After the defoaming, the above-mentioned asbestos-removed pieces H are collected in the collection tank 55. After that, the gas from which the asbestos-removed pieces H have been removed is exhausted from the exhaust duct 58 to the work place 7 or the outside of the work place 7 via the exhaust hose 57.

The mobile trolley 10 has an articulated arm 1
Arm operating device 6 for operating the driving devices for driving the joint driving units 19, 20, 21 and the motors 22, 23, etc.
0 and a head controller 61 for operating the operation of the removing head 12 are connected.

Using the asbestos removing device 1 described above,
When removing the asbestos 5a provided on the wall 5 of the building 2, first, the asbestos removing device 1 is installed at a desired position where the asbestos 5a is removed.

Then, using the arm operating device 60, until the brush seal 35 comes into close contact with the wall surface 5, the removal head 12
The multi-joint arm 11 is driven so as to press against the wall surface 5.

When the brush seal 35 and the like are pressed against the asbestos 5a, the blower 54 is operated.
The suction inside the removal head case 30 and the brush seal 35 causes the pressure inside the work place 7 to be suctioned by the blower 54.
The pressure becomes lower than the pressure. For this reason, the brush seal 3
Fine dust made of asbestos generated when 5 or the like comes into contact with the asbestos 5a does not scatter to the work place 7.

Thereafter, the head operating device 61 is operated to drive the motor 41 of the asbestos removing tool 31 provided on the removing head 12 to rotate the trapezoidal member 38 and the cutting member 39. In this state, using the arm operating device 60,
Further, the multi-joint arm 11 is driven so as to press the removing head 12 against the wall surface 5 to scrape the asbestos 5a.

At this time, by operating the blower 54,
As shown in FIG. 3, the scraped asbestos-removed pieces H are collected in the collection tank 55. And the supply tank 5
The chemical for preventing the asbestos-removed pieces H in 0 from scattering is foamed and sprayed from the foam injection nozzle 37 of the foam injection pipe 32 toward the asbestos 5a.

Thereafter, while the motor 41 of the asbestos removing tool 31 is driven and the blower 54 and the compressor 52 are operated as described above, as shown in FIG. The articulated arm 11 including the head support 18 is driven so as to move parallel to the wall surface 5 along the arrow I. Thus, the asbestos 5a is removed from the wall surface 5.

According to the present embodiment, as shown in FIG.
When removing the asbestos 5a while moving the asbestos removal tool 31 in parallel to the wall surface 5, even if a step is generated between the portion where the asbestos 5a has already been removed and the portion before the removal, the brush seal 35 is removed. Are in close contact with the wall surface 5 and the asbestos 5a.

Further, a bubble made of a chemical for preventing the asbestos-removed pieces H from being scattered from the foam injection nozzle 37 is sprayed toward the asbestos 5a and the wall surface 5, and the blower 54 and the like are used to remove the asbestos-removed pieces H during the removal of the asbestos 5a.
And so on. Therefore, scattering of the asbestos-removed pieces H from the space between the brush seal 35 and the wall surface 5 and the asbestos 5a into the work place 7 is suppressed.

Therefore, the asbestos-removed pieces H removed from the wall surface 5 can be greatly suppressed from scattering to the work place 7 and the work environment for the worker can be greatly improved. The discharge concentration of the asbestos-removed pieces H to the outside can be greatly reduced.

Therefore, it is possible to reduce the labor and cost required for curing performed before the asbestos 5a removal operation. In addition, by driving the articulated arm 11 including the head support portion 18, the asbestos removing tool 31 can be moved in parallel to the wall surface 5, so that the time required for the asbestos removing operation can be reduced. Becomes

Further, since the removing head 12 provided with the asbestos removing tool 31 is swingably attached to the head supporting portion 12 provided at the tip of the articulated arm 11, the asbestos 5a on the ceiling having a desired height is provided. Can be easily removed, and the asbestos 5a on the side wall provided perpendicular to the floor surface 6 can also be easily removed.

FIG. 4 is a perspective view of the removing head 12 according to the second embodiment, and the same components as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted. In the present embodiment, the removing head 12 has the asbestos removing tool 31 provided inside the removing head case 30 movably along two directions intersecting each other. Further, the removing head 12 urges the asbestos removing tool 31 toward the wall surface 5 when the removing head 12 faces the wall surface 5.

The opening 33 of the removing head case 30
Is provided with a sealing material 70 as a sealing means in the peripheral portion 34 of the first embodiment. The seal member 70 is made of an elastic body such as rubber or sponge. The sealing material 70 is provided so as to surround the opening 33 from the outer peripheral side.

In the illustrated example, the removing head 12
The opening 33 is formed so as to be a square such as a rectangle, and the asbestos removal tool 31 is
The opening 33 is orthogonal to the arrows X and Y and movable in directions along the arrows X and Y orthogonal to each other.
And is urged along an arrow Z shown in the drawing in a direction protruding therefrom.

In the illustrated example, the foam injection tube 32 is formed in a rectangular shape such as a rectangle when viewed from above, and the side wall 30 of the head case 30 is provided inside the removal head case 30.
a, 30b, 30c, 30d.

Further, in the illustrated example, the arrow X is
The arrow Y points along the mutually parallel side walls 30a, 30b facing each other and along the other parallel side walls 30b, 30d. It is oriented in the direction.

The asbestos removal tool 3
An X-direction moving mechanism 71 that makes the movable member 1 movable along the arrow X, a Y-directional moving mechanism 72 that makes the movable member 1 movable along the arrow Y, and Z as a pressing unit that urges along the arrow Z And a direction urging mechanism 73.

The X-direction moving mechanism 71 includes a pair of X-axis guide rods 74 and 75 provided along the arrow X, a pair of flange portions 76 and 77, pulleys 78 and 79, a motor 80, 81.

The flanges 76 and 77 are provided with the arrow X
Are provided outside of one of the side walls 30d of the side walls 30b and 30d along the arrow X, and at both ends along the arrow X. The flange portions 76 and 77 are respectively provided with the pulley 7.
8, 79 are rotatably supported.

The output end of the motor 81 is connected to one of the pulleys 78 and 79.
The pulley 78 rotates. The wire 81 is wound around pulleys 78 and 79.

One of the X-axis guide rods 74, 75 is provided outside the wall surface 30d and connecting the flange portions 76, 77 to each other. The other X-axis guide rod 75 is attached to the side walls 30b, 3 along the arrow X.
0d, both ends are fixed to the side walls 30a, 30c inside the other wall surface 30b.

The Y-direction moving mechanism 72 includes a pair of slide fittings 82 and 83, pulleys 84 and 85, a motor 86,
A wire 87 and a pair of Ys provided along the arrow Y
The shaft guide rods 88 and 89 are provided.

The slide fittings 82 and 83 are slidably mounted on the X-axis guide rods 74 and 75 along the arrow X, respectively. Among the slide fittings 82 and 83, the slide fitting 82 attached to the X-axis guide rod 74 provided on the wall surface 30d is fixed to the wire 81.

The Y-axis guide rods 88 and 89 are provided in parallel with each other along the arrow Y. Y-axis guide rod 8
8 and 89 are provided by connecting the slide fittings 82 and 83 to each other. The pulleys 84 and 85
Are rotatably provided on the slide fittings 82 and 83, respectively.

The output end of the motor 86 is connected to the pulley 8.
The pulley 84 is connected to one of the pulleys 84 and 85 so as to rotate. The wire 8
7 is bridged between pulleys 84 and 85.

The slide fitting 83, the wire 87 and the Y-axis guide rods 88, 89 are connected to the side wall 30 by
b, 30d. These wall surfaces 30b, 30
d is the slide bracket 83, the wire 87, respectively.
Further, seal members 95 and 96 are provided in a range where the Y-axis guide rods 88 and 89 penetrate and slide along the arrow X as described later.

The sealing members 95 and 96 are made of fibers made of sponge, nylon or the like. The seal members 95 and 96 do not hinder the sliding movement of the slide fitting 83, the wire 87, the Y-axis guide rods 88 and 89, and the like, and do not scatter the asbestos cut pieces H generated by the asbestos removing tool 31 to the work place 7. It has become.

The Z-direction urging mechanism 73 includes a Y-axis slide table 90, a pressing air cylinder 91, and an elevating table 92. The Y-axis slide table 90 is slidably attached to the Y-axis guide rods 88 and 89 along the arrow Y and fixed to the wire 87. In addition, approximately at the center of the Y-axis slide table 90,
An asbestos removal tool 31 is slidably provided along the arrow Z.

The pressing air cylinder 91 is fixed to the fixing portion 9.
3 and a piston rod 94 provided to be able to expand and contract with respect to the fixed portion 93 when a pressurized fluid is supplied from a pressurized fluid supply source (not shown). In the pressing air cylinder 91, the fixed portion 93 is fixed to the Y-axis slide table 9.
0, and the tip of the piston rod 94 is attached to the elevating table 92.

The elevating table 92 is provided so as to be able to freely contact and separate from the Y-axis slide table 90, and
An asbestos removing tool 31 slidably provided along the arrow Z is attached to the shaft slide table 90.

According to the configuration described above, the X-direction moving mechanism 7
1 is a pulley 78 driven by a motor 80.
Is rotated, and the slide fitting 8 is connected via a wire 81 or the like.
2 is slid along the arrow X. The sliding movement of the slide fitting 82 causes the Z-direction urging mechanism 7 to move.
The asbestos removal tool 31 moves along the arrow X together with the third Y-axis slide table 90.

The Y-direction moving mechanism 72 rotates the pulley 84 by driving the motor 86,
The asbestos removal tool 31 is slid along the Y-axis along with the Y-axis slide table 90 of the Z-direction urging mechanism 73 via the like.

The Z-direction urging mechanism 73 causes the asbestos removing tool 31 to move toward the asbestos 5a and the wall surface 5 by reducing the piston rod 94 by, for example, supplying a pressurized fluid to the pressing air cylinder 91. It is urged with a substantially constant force.

According to the present embodiment, in addition to the effects of the first embodiment described above, the asbestos removing tool 31 is movable along the directions of the arrows X and Y, so that the articulated arm 11 is frequently moved. It is not necessary to drive and always move the removing head 12.

Therefore, the frequency of rubbing of the asbestos 5 a with the sealing material 70 as the sealing means of the removing head 12 is reduced, and the dust of asbestos scattered to the work place 7 is reduced. Therefore, the working environment for the worker can be further improved.

Further, since the Z-direction urging mechanism 73 urges the asbestos removing tool 31 toward the wall surface 5,
The asbestos 5a can be surely removed even if the surface has irregularities such as undulations.

[0083]

According to the asbestos removing apparatus of the present invention,
Since the removal head is provided at the tip of the articulated arm rotatably provided on the movable cart, the removal head can be pressed against a desired wall surface from which asbestos is removed. For this reason, time efficient and reliable asbestos removal operation can be performed.

Since the removing head is provided with a removing means for removing asbestos, and a collecting section for collecting the removed asbestos is provided on the movable trolley, scattering of asbestos during the removing operation can be suppressed, and In addition to suppressing the influence on the asbestos, it is possible to perform a time efficient and reliable asbestos removal operation.

Further, when the removing head is pressed against the wall surface, the removing head is provided with a sealing means which comes into close contact with the wall surface, and a foam ejecting means for injecting a foam of the medicine toward the wall surface. For this reason, the asbestos removed by the removing means is suppressed from flying to the work place.

Therefore, the influence on the worker can be further suppressed, and the time and cost required for the curing operation can be suppressed, and the asbestos removal operation can be reliably performed.

Further, the removing head is provided with an asbestos removing tool provided with a removing means and rotatably provided, and a foam ejecting means for ejecting a foam made of a chemical toward the wall surface, and pressed against the wall surface. And a removing head case provided with a sealing means which is in close contact with the wall surface.

For this reason, when the articulated arm presses the removal head against the wall surface, the sealing means comes into close contact with the wall surface, and the inside of the removal head case provided with the asbestos removal tool and the foam injection means is placed in a work place. Will be isolated from Foam can be jetted from the foam jetting means during the asbestos removal tool removing operation.

Further, since the collecting head of the collecting section is connected to the removing head case, the asbestos removed by the asbestos removing tool is collected from the collecting hose without scattering to the work place.

Therefore, the scattering of asbestos during the removing operation can be further suppressed, the influence on the worker can be further suppressed, and the time and cost required for the curing operation can be suppressed and the asbestos can be surely reduced. Removal work can be performed.

When the removing head is provided with a pressing means for urging the asbestos removing tool toward the wall surface, the asbestos can be reliably removed even if the surface of the wall surface has irregularities such as undulations. it can.

When the removal head is provided with an asbestos removal tool inside the removal head case so as to be movable in two directions intersecting each other, it is necessary to frequently drive the multi-joint arm to constantly move the removal head. Disappears.

[0093] Therefore, the frequency at which the sealing means and asbestos rub against each other is reduced, and the dust made of asbestos generated by the rubbing between the sealing means and asbestos scattered at the work place is reduced. Therefore, the working environment for the worker can be further improved.

The asbestos removing tool of the present invention includes a plurality of cutting members formed in a curved band shape and having a cutting blade on an outer surface, and one end of each of the cutting members is rotated by a driving device. The other end is connected to the outer edge of the trapezoidal member. Therefore, by rotating the trapezoidal member together with the cutting member by the driving device, the cutting blade of the cutting member can reliably remove asbestos.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an asbestos removing device according to a first embodiment of the present invention.

FIG. 2 is a perspective view of the asbestos removal device shown in FIG. 1 with a part of a removal head cut away.

FIG. 3 is a sectional view showing an asbestos removing state of a removing head of the asbestos removing apparatus shown in FIG. 1;

FIG. 4 is a perspective view of a removal head according to a second embodiment of the present invention, with a portion cut away.

FIG. 5 is a view showing a conventional asbestos removal method.

FIG. 6 is a diagram showing a dust reduction method in a conventional asbestos removal method.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Asbestos removal apparatus, 2 ... Building, 5 ... Wall surface, 5a ... Asbestos, 10 ... Moving trolley, 11 ... Articulated arm, 12 ... Removal head, 13 ... Recovery part, 14 ... Supply part, 30 ... Removal head case 31, asbestos removal tool, 32, foam injection tube (foam injection means), 35, brush seal (sealing means), 37, foam injection nozzle (foam injection means), 38, trapezoidal member, 39, cutting member (removal) 41) Motor (drive device), 43 ... Protrusion (sharpening blade), 53 ... Foam supply hose, 56 ... Recovery hose, 70 ... Seal material (seal means), 73 ... Z-direction biasing mechanism (pressing means) H: Asbestos-removed pieces.

Continued on the front page (72) Inventor Tetsuro Mori 4-33, Kitahamahigashi, Chuo-ku, Osaka-shi, Osaka Inside the Obayashi Gumi Co., Ltd. (72) Ryo Sakamoto Takataka 4-33, Kitahamahigashi, Chuo-ku, Osaka, Osaka Obayashi Corporation

Claims (6)

[Claims] 1. An apparatus for removing asbestos provided on a wall surface of a building, comprising: a movable trolley; a multi-joint arm rotatably provided on the movable trolley; and a multi-joint arm provided at a tip of the multi-joint arm. A removal head provided with a removal unit that is pressed against a wall surface of the building to remove the asbestos; and a collection unit that is provided on the movable trolley and collects the asbestos removed by the removal head. An asbestos removal device characterized by the following. 2. The method according to claim 1, wherein the removing head comprises: a sealing unit which is in close contact with the wall surface of the building when pressed against the wall surface of the building; and a foam ejecting unit which ejects a foam made of a medicine toward the wall surface. The asbestos removal device according to claim 1, wherein a supply unit that supplies foam to the foam injection unit is provided on the cart. 3. A removing head case, which is used in an apparatus for removing asbestos provided on a wall surface of a building, and has a sealing means which is pressed against the wall surface of the building and is provided with sealing means which comes into close contact with the wall surface. An asbestos removal tool provided with a removal means pressed against the asbestos and rotatably provided inside the removal head case; and an asbestos removal tool provided inside the removal head case and facing the wall surface. A foam supply means for injecting foam, a foam supply hose for supplying the foam is connected to the foam injection means, and a collection hose for collecting asbestos removal pieces is connected to the removal head case. And removal head. 4. The apparatus according to claim 3, further comprising pressing means for urging said asbestos removal tool toward said wall surface.
The removal head as described. 5. The removing head according to claim 3, wherein the asbestos removing tool is provided inside the removing head case so as to be movable along two directions intersecting each other. 6. A trapezoidal member rotated by a driving device, and a plurality of cutting members formed in a curved band shape and having a cutting blade for cutting asbestos on an outer surface. An asbestos removal tool characterized in that one end is attached to the outer edge of the trapezoidal member and the other end is connected to each other.