JP2001003311A - Cutting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a cutting line halving high flexibility mixed with straight lines and curves without being limited to straight line or circular line when the road surface is cut. SOLUTION: A bar-shaped cutting member 1 is constituted of a driving member 2 in a drivable manner, and the members 1 and 2 are moved in required directions by means of a moving device 3 to form a cutting line mixed with straight lines and curves. The moving device 3 is constituted of an arm 10 rotating with a ring-like guide member 8 and a rotational bearing member 11 as the center to cut a circle. A traveling motor and a transverse motor 15 driven by velocity components of two axes disassembling the moving device 3 into them by an orthotropic coordinate system are provided, and a traveling truck 12 and a transverse truck 13 are synchronously driven. By the constitution, the corrugated cutting line is formed. A roller provided in the vicinity of the cutting member 1 is driven by the traveling motor and, at the same time, it is so constituted that it is turned by a turning motor.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cutting device for cutting a road surface, particularly a pavement surface of a road, with a straight line or a curved line and a line in which the straight line and the curved line are mixed.

[0002]

2. Description of the Related Art When repairing gas pipes and water pipes laid underground, part of the paved road is cut or repaired, and furthermore, existing manholes and telephone poles are repaired. In the case of replacement, a target portion on a pavement surface is cut to remove the pavement on a road surface.

[0003] Since a device for cutting a road surface generally uses a disk cutter (first known example), all the cutting grooves are straight. For this reason, as shown in FIGS. 8A and 8B, when the road surface is partially cut by combining the straight cutting grooves 51, a portion 52 to be peeled off on the pavement surface.
In order to secure the dimensions of the disk cutter, a cut-up portion 51a corresponding to the diameter of the disk cutter and the cutting depth is inevitably formed. As shown in FIG. 3C, when a specific section of the pavement surface is repaired, the boundary between the non-repaired portion and the repaired portion is clearly separated by a straight cutting groove 51.

Recently, a technique (second known example) of cutting a pavement surface with a hole saw has been developed. This technology is used when replacing a manhole cover or repairing a pavement surface of a road including an existing manhole.

[0005]

In the first known example,
Since the cutting tool is a disk cutter, it cannot be cut with a line other than a straight line. For this reason, the cut-up portion of the cutting groove is formed around the pavement portion to be separated, and when performing re-paving, it becomes difficult to fill the cut-up portion with the pavement material, and thereby, the swelling increases. There is a problem that unevenness is formed on the pavement surface.

[0006] In the second known example, when a circle is cut, no cut-up portion is formed, and the cutting operation is completed by one operation, so that the cutting time is advantageously shortened. However, there is a problem that when the diameter of the circle to be cut changes, it is necessary to replace the hole saw.

In any of the first and second known examples, since it is a dedicated device for a straight line or a circle, a line including a straight line and an arc cannot be cut. In particular, even when cutting can be performed only with a straight line, if a cut-off portion in each direction is formed at an intersection of a straight line in two directions, a workability problem and a finish problem in repaving occur.

In repairing a road as shown in FIG. 8 (c), if the road is cut in a straight line in a direction crossing the road and repaved, a linear step may be generated, and a car or a car may be damaged. When a bicycle or a wheelchair passes, an impact may occur. For this reason, it is preferable to make the cutting line in the direction crossing the road into a waveform. However, there is a problem that such cutting cannot be performed in the first known example and the second known example.

SUMMARY OF THE INVENTION An object of the present invention is to provide a cutting device which can cut a road surface with one stroke by combining a straight line and a curved line or a combination of both lines.

[0010]

According to the present invention, there is provided a cutting device for cutting a road surface, wherein the cutting device is a rod-shaped cutting member having a cutting edge on a tip surface and a side surface. And a driving member for driving the cutting member, and a moving device for moving the cutting member and the driving member.

In the above-described cutting device, the cutting member is formed in a rod shape having a cutting edge on a tip end surface and a side surface. Therefore, the cutting member is driven by a driving member and is simultaneously moved by a moving device, so that the road surface is straight or straight. It can be cut into a curve or a line combining these.

In particular, since the cutting member is rod-shaped, when cutting a road surface, the cut portion can be regarded as a point. For this reason, even if the cutting line is a line obtained by combining two straight lines, the intersection can be formed by a continuous line, and the target member is cut by moving the cutting member into a continuous curve. I can do it.

In the above cutting device, the moving device has a guide member formed corresponding to a preset cutting line, and a moving member for moving the cutting member and the drive member along the guide member. In this case, since the cutting member can be guided along the guide member, a cutting line similar to the guide member can be formed on the road surface.

[0014] Further, the moving device comprises a rotating support member installed at the center of a preset cutting line, one end rotatably supported by the rotating support member, a cutting member attached to the other end, and a driving member at a predetermined position. In this case, the cutting member can be moved on a circumference having a radius set for the arm member, so that the road surface can be cut in a circular shape.

The moving device has two moving members corresponding to two orthogonal directions, and each moving member is moved at a speed in two orthogonal axes directions in a rectangular coordinate system of a cutting line set in advance. In the case of driving according to the components, assuming that the road surface is a coordinate plane, the target cutting line is decomposed into components in the orthogonal two-axis directions, and the two moving members are respectively driven according to the decomposed components. Thus, the road surface can be cut into a straight line and a curved line.

Further, a moving member for moving the cutting member and the driving member at a predetermined speed, and a maneuver for maneuvering the moving member so that the moving direction of the moving member is tangential to the predetermined cutting line. When configured with a member,
The road surface can be cut into a straight line and a curved line by moving the cutting member while maneuvering in the tangential direction of the cutting portion at the target cutting line.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the above cutting device will be described below with reference to the drawings. FIG. 1 is a schematic diagram illustrating the configuration of the cutting device according to the first embodiment. FIG. 2 is a schematic diagram illustrating the entire configuration of the cutting device according to the second embodiment. FIG. 3 is a schematic sectional view illustrating a main part of a cutting device according to a second embodiment. FIG. 4 is a schematic diagram illustrating the configuration of a cutting device according to the third embodiment. FIG. 5 is a schematic plan view illustrating the configuration of the cutting device according to the fourth embodiment. FIG.
FIG. 9 is a schematic side view illustrating a configuration of a cutting device according to a fourth embodiment. FIG. 7 is a schematic diagram illustrating the configuration of a cutting device according to a fifth embodiment.

FIG. 1 is a view for explaining a cutting apparatus A according to a first embodiment. In the drawing, a cutting device A includes a rod-shaped cutting member 1 provided with a cutting blade 1a at a tip and a side surface;
And a moving device 3 for moving the cutting member 1 and the driving member 2. In the cutting device A, the driving member 2 drives the cutting member 1 to cut the road surface F, and operates the moving device 3 to move these members 1 and 2 along a preset cutting line. Thus, it is possible to form a cutting line composed of a continuous line on the road surface F.

The cutting member 1 is formed in a rod shape having a cutting edge 1a on the front end surface and side surface. An example of such a cutting member 1 is an end mill used for machining.
Further, a drill formed to have a similar function may be used. In any case, when cutting the road surface F into a linear shape, a relatively large bending force acts on the cutting member 1, and therefore, it is necessary to have strength enough to withstand this bending force.

The driving member 2 drives the cutting member 1 with a force capable of cutting the road surface F, and it is possible to use a motor such as an electric motor or a hydraulic motor. In the driving member 2, it is preferable that the rotation speed of the cutting member 1 can be appropriately adjusted so that the cutting member 1 can set an optimum speed when cutting the road surface F. Therefore, when an electric motor is used as the driving member 2, it is preferable that the cutting member 1 be driven via the transmission member 4 including the reduction gear and the transmission.

A chuck 5 for detachably holding the cutting member 1 is attached to the output shaft of the driving member 2 or the output shaft 4a of the conduction member 4. This chuck 5 is a cutting member 1
The one corresponding to the configuration of the shank part is adopted.

The moving device 3 moves the cutting member 1 and the driving member 2, and can be configured to be manually operable as in the present embodiment or to be automatically operable as described later. It is. That is, the moving device 3 includes the cutting member 1.
Any control may be used as long as it has a function of moving the drive member 2 and the type of control is not limited.

In this embodiment, the moving device 3 has a carriage 6 having three or four legs 6a, and a lifting member 7 for moving the cutting member 1 up and down. A free caster 6b is attached to each leg 6a, and when the operator pushes the cart 6, the cart 6 moves in the pushed direction.

The elevating member 7 includes a vertical member 7a arranged vertically and a bracket 7b moving along the vertical member 7a.
And a screw 7c for moving the bracket 7b. The bracket 7b is provided with a driving member 2, and the bracket 7b (the cutting member 1 and the driving member 2) can be moved up and down by rotating a handle 7d attached to the upper end of the screw 7c. .

In the cutting device A configured as described above, the operator moves the cutting device A to the end of the line to be cut on the road surface F, and activates the driving member 2 at this position to drive the cutting member 1. Then, the cutting member 1 is lowered by rotating the handle 7d, thereby cutting the road surface F to a preset depth (for example, a depth greater than the thickness of the surface pavement), and cutting to a predetermined depth. Then, by moving the carriage 6 along the line to be cut, the road surface F can be cut with a straight line, a curved line, or a line in which the straight line and the curved line are mixed.

In the above-mentioned cutting, the portion cut on the road surface F is apparently a point by the cutting member 1, and is formed as a line by moving the cutting member 1 by the carriage 6. That is, the cutting line by the cutting member 1 is formed by one stroke. For this reason, even when a part where the straight lines in two directions intersect is cut, it is possible to form the intersection with one continuous line without one line penetrating the other line.

Therefore, for example, when the road surface F is to be partially repaired, the thickness of the cutting member 1 is set to about 10 mm to 20 mm and the cutting depth is set to about 50 mm to 100 mm, so that the road surface F can be repaired. It is possible to cut the pavement formed on the surface and to separate the cut pavement from the ground.

For example, when a relatively thin cable is buried on the road surface F, a cutting member 1 having a thickness of, for example, about 50 mm to 80 mm corresponding to the diameter of the cable is employed, and a cutting depth is set. The cable burial depth according to 20
By setting the distance to about 0 mm to 300 mm, it is possible to form a groove formed of a continuous straight line, a curved line, or a line in which the straight line and the curved line are mixed on the road surface F, and embed a target cable in this groove.

FIGS. 2 and 3 are views illustrating the configuration of a cutting device B according to a second embodiment. In the figure, the first
The same portions and portions having the same functions as in the embodiment are denoted by the same reference numerals, and description thereof is omitted (the same applies hereinafter).

The cutting device B shown in the figure is configured to be used when cutting the road surface F into a circle, and has a ring-shaped guide member 8 for guiding the moving device 3. The guide member 8 is formed in a ring shape by connecting a plurality of arc-shaped pieces, and is configured to stably guide the moving device 3 when installed on the road surface F. In addition, the inner peripheral surface of the guide member 8 may be formed perpendicular to the road surface F, and the diameter of the upper part may be set to be slightly larger than the diameter of the lower part (tapered shape whose diameter increases toward the upper part). good. In the latter case, the work for removing the pavement portion after the road surface F is cut into a circular shape is facilitated.

The moving device 3 has a carriage 9 which is provided with a bracket 9a which straddles the guide member 8 and faces the inner and outer surfaces of the guide member 8 and has a U-shape in a side view. Each bracket 9a is provided with a roller 9b, and the roller 9b is configured to be able to move the carriage 9 along the guide member 8 by abutting on the inner surface and the outer surface of the guide member 8.

The bracket 7 of the elevating member 7 provided on the carriage 9
b is formed to extend toward the center of the circle constituting the guide member 8, the bracket 7b is provided with a horizontal screw 7e, and the cutting member 1 is guided by operating the screw 7e. It is configured to be able to move in the radial direction of the member 8.

In the above cutting device B, the guide member 8 is installed at a cutting portion on the road surface F, and the cutting member 1 is moved by operating the screw 7e so as to match the radius set in advance. Then, the cutting member 1 is driven by the driving member 2, and in this state, the lifting member 7 is operated to cut the road surface F to a predetermined depth.
, The road surface F can be cut in a circular shape.

FIG. 4 is a view for explaining the configuration of a cutting device C according to the third embodiment. The cutting device C shown in the figure is configured to be able to cut the road surface F into a circle, the moving device 3 is formed by an arm 10, and the arm 10 rotates about the rotation support member 11. It is configured as follows.

The arm 10 has one end of the main body 10a rotatably attached to the rotation support member 11, and the other end thereof has a leg 10b attached thereto. An elevating member 7 is provided on the leg 10b, and a cutting member 1 and a driving member 2 are arranged on a bracket 7b constituting the elevating member 7.

The main body 10a of the arm 10 is constituted by using a plurality of rod-shaped members. For example, one of the members is fitted to the other member so that it can slide or be fixed in the longitudinal direction. Have been. By configuring the main body 10a of the arm 10 in this manner, the rotation supporting member 11 can be
It is possible to cut circles with different radii by changing the distance to.

The rotation support member 11 is composed of a base member 11a stably installed on the road surface F and a bearing 11b provided on the base member 11a. By connecting the main body 10a of the arm 10 to the bearing portion 11b, the arm 10 constituting the moving device 3 can be rotated about the rotation support member 11.

In the cutting device C configured as described above, the rotary support member 11 is installed at the center of the circle to be cut on the road surface F, and the length of the main body 10a of the arm 10 is adjusted to adjust the cutting member 1. To the radius of the circle to be cut. Then, the cutting member 1 is driven by the driving member 2, and in this state, the elevating member 7 is operated to cut the road surface F to a predetermined depth, and the arm 10 serving as the moving device 3 is rotated about the rotation support member 11. This makes it possible to cut the road surface F into a circle.

In the cutting devices A to C according to the above embodiments,
The operation for moving the cutting member 1 may be manual.
However, in the rod-shaped cutting member 1 used in the present invention, the road surface A
When cutting is performed, a bending force is applied with the chuck 5 as a fulcrum and the actual cut portion as a power point. For this reason, the cutting member 1
When an excessive bending force acts on the cutting member 1, the cutting member 1 may be damaged.

Accordingly, by setting the speed (cutting speed) at which the cutting member 1 is moved to a speed suitable for the cutting member 1 to cut the road surface A and keeping this speed constant,
It is preferable that the cutting member 1 is configured to always apply a uniform bending force to perform good cutting.

That is, in the case of the cutting device B, by selectively driving from among the rollers 9b provided on the cart 9,
Is a self-propelled bogie, whereby the cutting member 1 can be moved at a substantially constant speed. In the case of the cutting device C, the casters 10c provided on the legs 10b of the arm 10 are driven by a driving device (not shown),
The cutting member 1 can be moved at a substantially constant speed.

FIGS. 5 and 6 show a cutting device D according to a fourth embodiment.
FIG. 3 is a diagram illustrating the configuration of FIG. The cutting device D shown in the figure is configured so that a complicated cutting line in which a straight line and a curve are mixed on the road surface F can be formed, and the traveling direction of the traveling vehicle 12 is applied to the traveling vehicle 12 constituting the moving device 3. A trolley 13 traversing in a direction perpendicular to the trolley 13 is arranged, and the cutting member 1 is mounted on the trolley 13 and the running speed of the trolley 12 and the traverse speed of the trolley 13 can be controlled. .

The traveling carriage 12 has four legs 12a and these legs
It has a frame 12b formed by connecting 12a, and a wheel 14a that cannot change direction is provided for each leg 12a. A running motor 14b is provided on the frame 12b, and a transmission member 14 such as a gear or a sprocket or a shaft is provided between the running motor 14b and each wheel 14a.
c are arranged, and each wheel 14
a can be operated synchronously. Thus, the traveling carriage 12 is configured to be able to travel in the x direction in FIG.

The traveling vehicle 12 is provided with a cross rail 12c in a direction (y direction) orthogonal to the traveling direction of the traveling vehicle 12, and a traversing vehicle 13 is arranged on the cross rail 12c so as to be able to traverse. The traversing truck 13 is provided with a traversing motor 15 for causing the traversing truck 13 to traverse, and the traversing motor 15 is configured to cause the traversing truck 13 to traverse in the y direction.

In the cutting apparatus D configured as described above, the cutting member 1 is operated in synchronization with the traveling amount of the traveling vehicle 12 and the traveling vehicle 13
Can be moved in the direction in which the traversing amount is combined. Therefore, the cutting line 16 (see FIG. 5) set in advance is decomposed into a component in the x direction and a component in the y direction in the rectangular coordinate system, and the traveling motor 14b and the traverse motor 15 are made to correspond to the respective directional components. By driving, the cutting member 1 is moved to the cutting line 16.
Can be moved in accordance with.

That is, a cutting line is previously provided to a control device (not shown).
The drive information of the traveling motor 14b corresponding to the component in the x direction of 16 and the drive information of the traversing motor 15 corresponding to the component in the y direction are stored, and the cutting device D is installed at the start position of the cutting line 16 and driven. The cutting member 1 is driven by the member 2 and at the same time, the elevating member 7 is operated to cut the road surface F to a predetermined depth. After the cutting depth by the cutting member 1 reaches a predetermined value,
When the operation of the traveling motor 14b and the traversing motor 15 is started, the traveling vehicle 12 travels in the x direction while changing the traveling speed, and at the same time, the traveling vehicle 13 changes the traveling speed and reciprocates on the cross rail 12c.

The cutting member 1 moves in a direction in which the traveling carriage 12 travels in the x direction and the traversing carriage 13 travels in the y direction (a direction coinciding with the cutting line 16). The cutting line 16 can be formed by cutting the road surface F.

FIG. 7 is a view for explaining the configuration of a cutting apparatus E according to the fifth embodiment. The cutting device E shown in the figure is configured based on the cutting device A according to the first embodiment,
The cutting member 1 is configured to move in a tangential direction of a target cutting line.

A roller 17b driven by a traveling motor 17a is arranged near the cutting member 1. The roller 17b has a function of causing the cutting device E to travel at a substantially constant speed in contact with the road surface F. Roller 17
b is mounted on the tip of a pipe 17c which is arranged vertically and rotatably provided on the carriage 6, and has a conductive member 17d such as a shaft or a chain disposed inside the pipe 17c.
Is connected to the traveling motor 17a via the.

The pipe 17c is fitted to a bearing 18 provided on the truck 6 and is configured to be pivotable about a vertical axis.
A turning motor 19 for turning the pipe 17c is disposed near the upper end of the pipe 17c, and the pipe 17c and the turning motor 19 are connected via a transmission member 19a such as a gear or a sprocket.

In the cutting device E configured as described above, a control device (not shown) stores the distance from the end of the target cutting line and information on the tangential direction at the distance in advance.
The cutting device E is moved to the start position of the cutting line, and the road surface F is cut to a predetermined depth by the cutting member 1 at this position. Thereafter, the operation of the traveling motor 17a and the turning motor 19 is started simultaneously.

The rotation of the traveling motor 17a or the roller 17
The travel distance of the truck 6 accompanying the rotation of b is accumulated every moment, and the distance on the cutting line is calculated based on the accumulated information. Information on the tangential direction of the cutting line is read out in accordance with the calculation result, and the turning motor 19 is driven based on this information. That is, the moving direction of the cutting device E changes while moving at a substantially constant speed.

Therefore, the entire cutting device E moves along the cutting line, and it is possible to form a cutting line similar to the target cutting line in this moving process. At this time, although the roller 17b draws a locus that coincides with the cutting line, the locus of the cutting member 1 does not always coincide with the target cutting line because the cutting member 1 is located at a position separated from the roller 17b. Become. However, it is possible to form a cutting line with sufficiently high precision for cutting the road surface F.

[0054]

As described in detail above, in the cutting device according to the present invention, the rod-shaped cutting member having the cutting edge formed at the tip and side is driven by the driving member and moved by the moving device, so that it is moved. The cutting member becomes an apparent point, and can be moved in a desired direction without directionality. Therefore, cutting can be performed whether the cutting line is a straight line or a curved line, and even when the straight line in two directions intersects, the intersection can be cut into a continuous linear shape. .

When the moving device has a guide member, cutting can be performed according to the shape of the guide member.

When the moving device is composed of a rotation support member and an arm member rotating about the rotation support member, a circle having the arm member as a radius can be cut.

In the case where two moving members having the moving devices made orthogonal to each other are driven in accordance with the velocity components decomposed in two orthogonal directions of the cutting line, a waveform line or a zigzag line is cut. You can do it.

When the moving device is operated so that the moving member for moving the cutting member at a preset speed is moved in the tangential direction of the cutting line, the entire cutting device is moved to the target cutting line. It can be moved along and cut.

[Brief description of the drawings]

FIG. 1 is a schematic diagram illustrating a configuration of a cutting device according to a first embodiment.

FIG. 2 is a schematic diagram illustrating an overall configuration of a cutting device according to a second embodiment.

FIG. 3 is a schematic sectional view illustrating a main part of a cutting device according to a second embodiment.

FIG. 4 is a schematic diagram illustrating a configuration of a cutting device according to a third embodiment.

FIG. 5 is a schematic plan view illustrating the configuration of a cutting device according to a fourth embodiment.

FIG. 6 is a schematic side view illustrating a configuration of a cutting device according to a fourth embodiment.

FIG. 7 is a schematic diagram illustrating a configuration of a cutting device according to a fifth embodiment.

FIG. 8 is a diagram illustrating a state of a conventional cutting line when cutting a road surface.

[Description of Signs] A to E Cutting device F Road surface 1 Cutting member 1a Cutting blade 2 Drive member 3 Moving device 4 Conductive member 4a Output shaft 5 Chuck 6 Cart 6a Leg 6b Free caster 7 Elevating member 7a Vertical member 7b Bracket 7c, 7e Screw 7d Handle 8 Guide member 9 Dolly 9a Bracket 9b Roller 10 Arm 10a Body 10b Leg 10c Caster 11 Rotation support member 11a Base member 11b Bearing unit 12 Traveling trolley 12a Leg 12b Frame 12c Cross rail 13 Traversing truck 14a Wheel 14b Traveling motor 14c Conduction Member 15 Traverse motor 16 Cutting line 17a Traveling motor 17b Roller 17c Pipe 17d Conductive member 18 Bearing unit 19 Swing motor 19a Conductive member

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Hyodo Nakamaro 1-22-2 Nishi-Shinjuku, Shinjuku-ku, Tokyo Haneda Hume Kanko Co., Ltd. (72) Inventor Shinichi Tsubakimori Kyoto University 1-1 Himachi Epo Co., Ltd. F-term (reference) 2D053 AA24 AB02 AC01 BA01 BA07 DA03 DA05

Claims (5)

[Claims] 1. A cutting device for cutting a road surface, comprising: a rod-shaped cutting member having a cutting edge on a tip surface and a side surface;
A cutting device comprising: a driving member that drives the cutting member; and a moving device that moves the cutting member and the driving member. 2. The moving device according to claim 1, wherein the moving device includes a guide member formed corresponding to a preset cutting line, and a moving member that moves the cutting member and the driving member along the guide member. The cutting device according to claim 1, wherein: 3. The apparatus according to claim 1, wherein the moving device includes a rotation support member installed at a center of a predetermined cutting line, a rotation member having one end rotatably supported by the rotation support member, and a cutting member attached to the other end. The cutting device according to claim 1, further comprising an arm member that supports the driving member. 4. The moving device has two moving members corresponding to two orthogonal directions, and sets each moving member in a two-axis direction orthogonal to each other in a rectangular coordinate system of a cutting line set in advance. The cutting device according to claim 1, wherein the cutting device is configured to be driven in accordance with the speed component of the cutting force. 5. A moving member for moving a cutting member and a driving member at a preset speed, and a moving direction of the moving member is steered so as to be tangential to a preset cutting line. The cutting device according to claim 1, further comprising a steering member.