JP4773629B2 - Paving surface cutting equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention provides a circular paved surface to form a hole for construction in manhole installation work, piping work such as gas pipes and water pipes, and repairing and inspection work of pipes that have already been buried. The present invention relates to a soundproof structure in a cutting apparatus.
[0002]
[Prior art]
In general, construction of newly installed manholes on paved roads, construction of pipes such as gas pipes and water pipes under paved roads, or repair and inspection of pipes that have already been buried When performing construction, it is necessary to break the asphalt and concrete pavement on the road surface to expose the ground.
[0003]
At this time, it is necessary to minimize the range of breaking the pavement surface in order to maintain the aesthetics of the re-paved pavement surface after construction and to reduce the cost of re-paving. Most preferably, it is cut into pieces.
In particular, in manhole installation work, it is desirable to cut the pavement surface concentrically with the manhole installation position.
And by cutting the pavement surface into a circle in this way, it becomes easy to uniformly roll the repair compound during the main repair after the construction.
[0004]
Conventionally, the following method is used to cut a painted surface into a circle.
That is, the first method is a method in which a ring member is pressed into an asphalt pavement surface softened by heating to cut the asphalt pavement surface, and the second method is a ring cutter formed with an outer diameter to be cut. This is a method of cutting by entering the asphalt pavement surface.
FIG. 9 shows the first method, in which the asphalt pavement surface GL is heated and softened by the burner A, and then a steel cylindrical ring having a required diameter as shown in FIG. B is pressed into the asphalt pavement surface GL and cut.
FIG. 11 shows a second method, in which a paved surface is cut through a circular shape using a cylindrical cutter C having a cutting edge C1 formed at the lower end edge.
[0005]
[Problems to be solved by the invention]
However, the first method has a problem that the time required for construction such as heating is long and the cut surface becomes rough.
Furthermore, the diameter of the round hole to be formed is determined by the diameter of the cylindrical ring B prepared at the site, and there is a problem that the diameter of the round hole cannot be arbitrarily set.
Further, in the second method, the cutter C is a consumable part and is expensive, and is large and heavy, so that a large power source and a dedicated vehicle are required to perform cutting with the cutter C. There is a problem that the time and labor required for installation and removal become very large. In particular, in the second direction, frictional noise between the ground and the cutter C generated when the ring cutter C cuts the road surface is large, and annoyance to residents living in the vicinity of the work is increased.
[0006]
The object of the present invention is, firstly, in view of the problems in the above-mentioned conventional cutting apparatus, it is possible to reduce the equipment and time required for the construction and prevent an increase in the cost required for cutting, and to prevent leakage of noise generated during work. It is providing the cutting device of the pavement surface provided with the structure which can be suppressed.
[0007]
[Means for Solving the Problems]
In order to achieve this object, the present invention provides a fulcrum member that is fixed at an arbitrary position on the pavement surface and serves as a fulcrum, and the fulcrum member is provided at an end in the extending direction, and is provided at an end opposite to the end. integrating the a base movable on a circumference drawn by a radius centered on the fulcrum member, a cutting drive source support member being kicked set to the base, and the cutting drive source support member And a rotary blade that is driven to rotate by the cutting drive source, and a sound insulation portion that constitutes a sealed space that surrounds the top from the ground is provided at the periphery of the rotary blade. A suction port for removing cutting powder generated from a position where the rotary blade is in contact with the ground is provided oppositely above the rotary blade of the sound insulating portion .
[0008]
Further, in the cutting device for a paving surface according to the present invention, the sound insulation portion is configured by a dome body that has an opening attached to the base and surrounds members installed on the base. It is characterized by that.
[0009]
Further, according to the present invention, in the above-described pavement surface cutting device, the base provided with the sound insulation portion made of the dome body includes a self-propelled wheel, and the wheel is mounted on a rail installed on the ground. It is characterized by having a configuration capable of rolling .
[0010]
Moreover, the present invention is characterized in that, in the above-described pavement surface cutting device, the wheel can be unmannedly driven on the rail .
[0012]
[Action]
In the present invention, since the sound insulating portion that constitutes a sealed space that can surround the top from the ground is provided in the periphery of the rotary blade, the noise generated at the contact position between the rotary blade and the ground is not leaked to the outside. it can. In addition, since the sound insulating portion includes a suction port portion for removing cutting powder, noise can be leaked and cutting powder can be removed by using a common structure without using a special structure.
[0014]
Further, in the present invention, since the sound insulation portion is constituted by a dome-shaped body that has an opening attached to the base and surrounds the members installed on the base, it can cover almost the entire area of the cutting device, Noise can be blocked between the cutting device and the surrounding area.
[0015]
In the present invention, since the wheel provided on the base to which the sound insulation portion made of the dome body is attached can roll on the rail installed on the ground, even if the cutting device cannot be visually recognized from the outside. Predetermined cutting can be performed. In particular, by allowing the wheels to run unattended , monitoring during cutting becomes unnecessary, and work labor can be reduced.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the illustrated examples.
FIG. 1 is a schematic diagram for explaining the configuration of a cutting apparatus according to an embodiment of the present invention.
In FIG. 1, the cutting device 1 includes a fulcrum support member 4 that is integrated with a side surface of a base 3 including an operation handle 2 and can be parallel to a pavement surface GL.
One end of the fulcrum support member 4 is fixed to the base 3, and the other end of the fulcrum support member 4 is detachably provided with a fulcrum member 5 that can pierce the pavement surface. As shown in FIG. 1 (B), the fulcrum member 5 is mounted and fixed in any one of the support holes 4A formed in the fulcrum support member 4 along the extending direction. Each of the holes 4A is formed at a position where a cutting radius by a rotary blade described later can be set.
In the vicinity of the support hole 4 </ b> A, a radius display portion is provided by numerical display so that the position for inserting the fulcrum member 5 can be easily selected.
[0017]
The base 3 is provided with a cutting drive source support member 6 supported so as to be tiltable via a support shaft 3A. The cutting drive source support member 6 includes a cutting drive for a rotary blade 7 to be described later. The electric motor 8 which makes a source is attached.
A rotary blade 7 is attached to the output shaft of the electric motor 8.
1 to 3, the rotary blade 7 has a surface 7 </ b> A that bulges outward across a circumference (indicated by a symbol L in FIG. 3) drawn by a radius set by the position of the fulcrum member 5. The inner surface has a dish shape that is inclined at the same angle as the outer surface.
As shown in FIGS. 2 and 3, the front and back surfaces of the rotary blade 7 are formed with cutting surfaces 7 </ b> A <b> 1 in which diamond chips are embedded in regions arranged at equal intervals along the circumferential direction. The cutting surface 7A1 is also provided on a peripheral edge (portion indicated by reference numeral 7A2 in FIG. 2) that is an entry portion to the pavement surface. Further, a cut portion (indicated by reference numeral 7A3 in FIG. 2) is formed in the circumferential surface of the rotary blade 7 at the approximate center of each cutting surface 7A1 in the circumferential direction, reducing resistance during cutting and frictional heat. It is designed to be a heat dissipation surface.
[0018]
As shown in FIG. 4, the rotary blade 7 rotates in a direction (indicated by reference numeral C in FIG. 4) that moves in the same direction at the contact position with the pavement surface GL with respect to the traveling direction F of the cutting device. In other words, the base 3 rotates in the direction in which the traveling direction of the base 3 is reversed. As a result, the direction in which the base 3 moves to cut the round hole and the direction in which the reaction force from the soil acting when the rotary blade 7 enters the pavement surface are contradictory to each other. Therefore, unlike the case where the rotary blade 7 rotates in the moving direction of the base 3, it is possible to prevent a progression that causes a rapid speed increase when the rotary blade 7 enters the pavement surface. Thus, the runaway of the cutting device 1 is prevented.
[0019]
In FIG. 1, a cover 9 attached to the base 3 with the bottom open is attached to and integrated with the base 3 so as to cover the space above the rotary blade 7. . The cover 9 can shield the outside and the inside, thereby constituting a sound insulation portion that does not leak noise generated from the cutting position by the rotary blade 7 to the outside. A suction port member 10 is provided in an upper space of the rotary blade 7 so as to face the suction blade member 10, and the suction port member 10 communicates with a dust collection member 12 and a suction pump 13 installed outside by a hose 11. The suction port member 10 constitutes a sealed space that surrounds the upper side of the rotary blade 7. With this configuration, the suction port member 10 also functions as a sound insulation portion that shields noise generated from the rotary blade 7. In FIG. 1, reference numeral 14 denotes a skirt member that shields the lower periphery of the base 3 from the outside, and makes it difficult for the dust generated from the cutting position to be leaked to the outside during cutting by the rotary blade 7. The skirt 14 can shield noise that tends to leak to the outside from the lower portion of the base 3 due to its installation structure, and can function as a sound insulation portion of the cutting device 1 together with the cover 9 and the suction port member 10 described above. It has become.
[0020]
Since the present embodiment has the above-described configuration, the fulcrum member 5 is inserted into the support hole 4A at the position corresponding to the cutting radius among the support holes 4A in the fulcrum support member 4 at the corresponding cutting positions on the pavement surface. The fulcrum member 5 is stabbed into the pavement surface.
As shown in FIG. 3, the rotary blade 7 is set to an angle at which the approach direction is perpendicular to the pavement surface GL (an angle at which a vertical line indicated by S <b> 1 in FIG. 3 is obtained). For this reason, the cutting drive source support member 6 is tilted with respect to the base 3 so that the approach angle of the rotary blade 7 is obtained, and the angle is adjusted.
Adjustment of the approach angle of the rotary blade 7 can be performed by inclining the cutting drive source support member 6 about the support shaft 3A mounted on the base 3 and maintaining the inclined state.
[0021]
In addition to the case where the approach angle of the rotary blade 7 is set to be perpendicular to the pavement surface GL, the cutting drive source support member 4 is arranged from the position of the support hole 4A having the smallest diameter among the support holes 4A of the fulcrum support member 4. However, it is also tilted when a round hole with a smaller diameter is cut. In this case, the angle is set to an angle at which the peripheral edge of the rotary blade 7 can enter inside the radius centered on the fulcrum member 5 (an angle indicated by reference sign S2 in FIG. 3). Thereby, as indicated by the symbol R in FIG. 3, it is possible to cut a round hole in which a circumference having a radius R1 smaller than the minimum radius obtained by the position of the support hole 4A of the fulcrum support member 4 is obtained.
The tilting is not limited to the cutting radius described above, but can be performed according to the size of the blade, that is, the blade width and the diameter of the blade. In any case, the blade can easily enter the pavement surface. Can be made easier to cut.
[0022]
As shown in FIG. 4, the rotary blade 7 facing the pavement surface is rotating in the direction in which the base 3, in other words, the cutting device 1 is advanced, on the side opposite to the traveling direction F of the cutting device 1. The rapid increase in speed as in the case of rotating in the same direction as the direction is prevented, and the entry in the pavement surface is smoothed.
Moreover, as shown in FIG. 2 (B), the rotary blade 7 moves from the soil acting on the bulging surface and the force F1 in the traveling (moving) direction of the cutting device 1 in the process of moving within the pavement surface due to the dish-like shape. The resultant force G with the resistance force P is along the circumferential direction drawn by the radius from the fulcrum member 5, thereby causing smooth movement in the circumferential direction, which is necessary for cutting. Labor and time will be reduced.
[0023]
On the other hand, the noise generated from the cutting position of the rotary blade 7 during cutting is due to the presence of a plurality of sound insulation parts due to the suction port member 10, the skirt 14, and the cover 9 that are arranged in order from a position close to the rotary blade 7. Noises to the outside are easily cut off, which makes it easier to achieve noise insulation to the outside.
[0024]
FIG. 5 is a view showing a partial modification of the configuration shown in FIG. 1, and is different in that the cover 9 shown in FIG. 1 is not provided. In FIG. 5, the same members as those shown in FIG.
First, the difference between the configuration shown in FIG. 5 and the configuration shown in FIG. 1 will be described. In the configuration shown in FIG. 5, the cutting drive source support member 6 is slidably provided.
The cutting drive source support member 6 is slid in the direction of the arrow shown in parallel with the other operation handle 15 by a guide member 17 fitted to the other operation handle 16 provided in parallel with the operation handle 2. The sliding position can be identified by a numerical display member 18 provided in the vicinity of the other operation handle 15.
Although not shown in FIG. 1, the base 3 is provided with wheels 19 using rollers or tires that allow the rotary blade 7 to move while rotating, and the fulcrum support member 4 adjacent to the base 3. Is provided so as to be able to rise and fall through a hinge member 20 such as a hinge.
The fulcrum support member 4 is tilted at the time of operation, and can set the turning center of the rotary blade 7 in the same manner as the example shown in FIG. 1, and as shown by a two-dot chain line in FIG. Can be folded to the side. For example, it is folded at the time of transportation, and in this state, it can be prevented from being hindered during transportation because it does not protrude sideways.
[0025]
In the configuration shown in FIG. 5, the suction port member 10 is configured in a box shape that forms a sealed space surrounding the periphery of the rotary blade 7 except for the bottom, and a part of the suction port member 10 is a drive source of the rotary blade 7. An exhaust pipe 15 having an opening is connected in the vicinity of the heat radiating portion of the electric motor 8.
The exhaust pipe 15 is a member for avoiding turbulent flow in the suction port member 10 due to exhaust from the electric motor 8, and exhausts the exhaust from the electric motor 8 to the outside. Since the exhaust pipe 15 has an opening in the vicinity of the rotary blade 7 which is a noise generating source, a sound absorbing material and a sound deadening material are loaded in the vicinity of the opening located outside, although not shown. As a result, the sound wave propagating through the exhaust pipe 15 is absorbed by the sound absorbing material and the sound deadening material, and leakage to the outside is prevented.
[0026]
Next, another example according to the embodiment of the present invention will be described.
FIG. 6 is a diagram showing the configuration of the present embodiment. In the configuration shown in FIG. 6, the base of the cutting apparatus 1 except for the wheel 19 mounted on the base 3 and the bottom where the rotary blade 7 is exposed. 3 is provided with a dome body 21 that constitutes a sealed space in which various members respectively provided in 3 can be surrounded. This dome body 21 is intended for the cutting device 1 in a working position, that is, the base 3 and the fulcrum support member 4 that is brought down and protrudes to the side. Attached to the side of the. Further, the attachment time corresponds to after the turning center of the cutting device 1 in the fulcrum support member 4 is set.
The dome body 21 is formed of a transparent body having a property that the operator can contract when operating the operation switches, although the operator does not attach the operation handles 2 and 16 and the reference numerals. In addition, it can replace with the property to shrink | contract and it can also provide a glove part in a part of dome body 21 so that a hand can be inserted.
[0027]
According to this configuration, almost the entire cutting device 1 can be surrounded and shielded from the outside, so that noise generated inside can be almost completely blocked. In addition, since the dome body 21 is a transparent body and is in a state in which various operation units can be operated, the operator can perform cutting while pushing and moving as in the configuration shown in FIG. 1 or FIG.
[0028]
Next, another example according to the embodiment of the present invention will be described.
FIG. 7 shows an example in which the configuration of the wheels (for the sake of convenience, reference numeral 19 ′ is used) can be rolled on the rail 22 installed on the ground for the configuration shown in FIG.
That is, before starting the cutting operation, a rail 22 following the cutting locus is laid in advance around the cutting position, and the wheel 19 ′ of the cutting apparatus 1 is placed on the rail 22.
In the work, as in the case shown in FIG. 6, the operator pushes and moves the round hole along the laying locus of the rail 22.
According to this configuration, since the round hole shape can be set by the rail 22, it is not necessary to use the fulcrum support member 4 for determining the turning center shown in FIGS. Therefore, the fulcrum support member 4 can be reduced in weight by being folded or removed from the hinge member 20, and workability is improved.
[0029]
Next, another example according to the embodiment of the present invention will be described.
The present embodiment is characterized in that the cutting operation by unmanned traveling is performed by setting the wheel 19 ′ as a structure capable of self-running for the configuration shown in FIG.
That is, the wheel 19 ′ is provided so as to be interlocked with an electric motor (not shown) serving as a self-running drive source, and the electric motor is provided with a control unit 23 shown in FIG.
In FIG. 8, the main part of the control unit 23 is constituted by a microcomputer, a receiving unit 24 such as a transmitter is connected to the input side via an I / O interface (not shown), and an electric motor and a cutting machine are connected to the output side. The drive part 25.26 of the electric motor 8 which is a drive source for operation is connected. In this embodiment, the cutting drive source support member 6 that supports the electric motor 8 can be advanced and retracted by a drive source such as a linear motor (not shown) so that the rotary blade 7 can be automatically advanced. Preferably, when this linear motor is used, its drive unit is connected to the output side of the control unit 23, and a potentiometer capable of detecting the amount of advancement / retraction of the rotary blade 7 is connected to the input side of the control unit 23. Is done.
Although not shown, the control unit 23 starts and stops the electric motor for wheels and the electric motor 8 that is a cutting drive source in accordance with a transmission command from the transmission unit 27 held by the operator. For this reason, the control part 23 is used as a remote control part for making the cutting device 1 self-propelled with a transmission part. When the advance / retreat amount of the electric motor 8 is controlled, the advance amount of the rotary blade 7, that is, the cutting depth is calculated based on position information from a potentiometer (not shown), and the necessary advance amount is set for the linear motor.
[0030]
In the present embodiment, operation control of the electric motor for the wheel 19 ′ and the electric motor 8 as a cutting drive source is performed by the start or stop command from the transmission unit, and the self-running of the cutting device 1 and the rotation of the rotary blade 7 are performed. In addition, the amount of progress of the rotary blade 7 is set.
According to the present embodiment, after the measure device 1 is mounted on the rail 22, the cutting device 1 can be self-propelled and cut by the unmanned operation.
[0031]
【The invention's effect】
According to the first aspect of the present invention, since the sound insulation portion constituting the sealed space that can surround the upper portion from the ground is provided in the peripheral portion of the rotary blade, the noise generated at the contact position between the rotary blade and the ground is reduced. It is possible to prevent leakage to the outside, and noise pollution around the work site can be reduced.
[0032]
According to invention of Claim 2, since the sound insulation part uses the suction part which removes cutting powder, the leakage of noise can be prevented without using a special structure by making the structure common.
[0033]
In the invention according to claim 3, since the sound insulating portion is configured by the dome-shaped body that has the opening attached to the base and surrounds the members installed on the base, it can cover almost the entire area of the cutting device. It is possible to cut off noise between the cutting device and the periphery.
[0034]
According to invention of Claim 4 and 5, since the wheel provided in the base with which the sound insulation part which consists of a dome body is attached can roll on the rail installed in the ground, a cutting device is outside. Even if it cannot be visually recognized, predetermined cutting can be performed. In particular, in the invention described in claim 5, since the wheel can run unattended, monitoring during cutting becomes unnecessary, and work labor can be reduced.
[Brief description of the drawings]
FIG. 1 is a schematic diagram for explaining the configuration of a cutting device according to an embodiment of the present invention, where FIG. 1 (A) is a diagram showing the whole, and FIG. It is a top view.
2A and 2B are diagrams showing a configuration of a rotary blade used in the cutting apparatus shown in FIG. 1, FIG. 2A is a perspective view, and FIG. 2B is a plan view.
FIG. 3 is an end view of the rotary blade shown in FIG. 2;
FIG. 4 is a schematic diagram for explaining a rotation direction of a rotary blade.
FIG. 5 is a diagram for explaining a partial modification of the configuration shown in FIG. 1;
FIG. 6 is a view corresponding to FIG. 5 for explaining another example according to the embodiment of the present invention.
7 is a view corresponding to FIG. 5 for explaining another example of S et al. According to the embodiment of the present invention.
FIG. 8 is a block diagram for explaining a configuration of a control unit used in still another example according to the embodiment of the present invention.
FIG. 9 is a diagram illustrating one conventional example of a paving surface cutting method.
FIG. 10 is a diagram for explaining one of the procedures in the construction method shown in FIG.
FIG. 11 is a diagram showing another example of a conventional example of a pavement surface cutting method.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Cutting device 2 Operation handle 3 Base 4 Support point support member 4A Support hole 5 Support point member 6 Cutting drive source support member 7 Rotary blades 7A and 7B Cutting surface 8 Electric motor 9 which is a drive source for cutting One of the sound insulation parts A certain cover 10 Suction port member 19, 19 ′ wheel 21, a dome body 22, a rail 23, a control unit 24, a receiving unit 25, a driving unit 27, a transmitting unit, which is another one of the sound insulating units

Claims (4)

A fulcrum member that is fixed at an arbitrary position on the pavement surface and serves as a fulcrum, and the fulcrum member is provided at the end in the extending direction, and the end opposite the end is drawn with a radius centered on the fulcrum member a base of the upper circumferential movable to a cutting drive source support member being kicked set to the base, a cutting drive source that is integrated with the cutting drive source support members, the cutting A rotary blade that is rotated by a drive source for
In the periphery of the rotary blade, there is provided a sound insulation portion that constitutes a sealed space that surrounds the top from the ground,
A pavement surface cutting apparatus, wherein a suction port for removing cutting powder generated from a position where the rotary blade contacts the ground is provided above the rotary blade of the sound insulating portion . In the cutting device of the pavement surface according to claim 1,
The sound-insulating part is constituted by a dome body that has an opening attached to the base and surrounds members installed on the base, respectively . In the cutting device of the pavement surface according to claim 2 ,
A pavement characterized in that a self-propelled wheel is provided on a base provided with a sound insulation portion made of the dome body, and the wheel has a configuration capable of rolling on a rail installed on the ground. Surface cutting device. In the cutting device of the pavement surface according to claim 3,
The wheel is capable of unmanned traveling on the rail, and the paving surface cutting device.

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