JPH11810A - Working device for road surface ditch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To smoothen and quicken a ditch depth setting work for a cutter. SOLUTION: This working device for a road surface ditch is provided with a body 101, a rotary cutter in a body lower part, a cutting energizing means 103 to rotate the cutter, wheels 104, 105 arranged in both end parts of the body, a moving energizing means 106 to drive the wheel 104, and a lifting mechanism 107 to hold the wheel 105 to be freely liftable from the body 102, and has a distance sensor 2 to detect a distance to a road surface varying according to elevation of the wheel 105, a lifting motion energizing means 3 to energize a lifting motion of the wheel 105 through the lifting mechanism 107, a motion control means to control the motion of the means 3, and a wheel positioning control function to conduct motion control for the means 3 by the motion control means to position the wheel 105 at the prescribed position based on an output of the distance sensor 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a road surface grooving device, and more particularly to a road surface grooving device for grooving a road surface such as an airport runway or a highway.

[0002]

2. Description of the Related Art FIG. 12 shows a conventional example. This conventional road surface groove processing apparatus 100 includes a vehicle body 101 and a rotary cutter 10 for cutting a road surface groove provided on a lower surface of the vehicle body 101.
2 (see FIG. 17 (B)), and a cutter engine 1 installed inside the vehicle body 101 and driving the cutter 102
03 and the drive wheel 1 mounted on the lower front side of the vehicle body 101
04, a moving engine 106 for urging the driving wheels 104 to rotate, two working receiving wheels 105 (the other is not shown) mounted on each rear side of the vehicle body 101, and each working receiving Two lifting mechanisms 107 that hold the wheels 105 and allow the wheels 105 to freely move up and down from the vehicle body 101
(The other is not shown).

On each side of the vehicle body 101, moving wheels 108 (moving wheels 108 on the opposite side are not shown) are provided so as to be able to move up and down. A driver's seat 109 and an operation panel 110 are provided.

When the vehicle body 101 is not working, the moving wheels 108 are lowered below the working wheels 105, and are supported on the road surface at three points of the moving wheels 108 and the driving wheels 104.

[0005] A hydraulic motor 104a is provided alongside the drive wheel 104, and the drive wheel 104 is driven to rotate by the drive motor 104a.
Make a move. The hydraulic motor 104a is connected to the engine 1
A rotational force is generated by the hydraulic pressure applied from a hydraulic pump 106a connected to the hydraulic pump 106. Also, as shown in FIG.
The drive wheels 104 have a function of steering the vehicle body 101. That is, the drive wheel 104 and the hydraulic motor 10
4a, a link mechanism 104c for rotatably holding the bracket 104b about a vertical direction, and a hydraulic cylinder 104d for urging the driving wheel 104 to change the traveling direction via the link mechanism 104c. Are attached to the drive wheel 104. The hydraulic cylinder 104d is provided with the hydraulic pump 10 described above.
6a (with a route different from the hydraulic motor 104a), the driving wheels 104 are steered by the application of hydraulic pressure, and the traveling direction of the vehicle body 101 can be freely changed.

On the other hand, the moving wheels 108 are non-powered driven wheels as shown in FIG.
08 is rotatably held at the tip of a hydraulic cylinder 108a that expands and contracts in the vertical direction so as to be able to move up and down freely. The hydraulic cylinder 108a is expanded and contracted by the above-described hydraulic pump 106a (or an independent hydraulic pump not shown). When the vehicle body 101 is moved, at least the working receiving wheels 105 and the cutting edges of the cutters 102 are moved to the road surface. Movement wheel 1 until floating
08 is lowered to the road surface side.

The above-described operation of driving the driving wheels 104, and raising and lowering the steering and moving wheels 108 is performed via an electromagnetic hydraulic valve (not shown) provided in each hydraulic circuit.
This is performed by inputting an operation command from the control unit 10.

The above-mentioned cutter 102 is used for the vehicle body 1 described later.
At a position substantially between the two lifting mechanisms 107 provided on both sides of the vehicle body 01, a plurality (29) of blades are provided with the cutting edge directed from the lower surface of the vehicle body 101 to the road surface. 101 are arranged along the traveling direction of the vehicle 101 and perpendicular to the road surface, and a plurality thereof are arranged at equal intervals on the same central axis along the horizontal direction. Then, at the time of cutting, the depth of the groove on the road surface of each cutter 102 is adjusted by the vertical movement of the vehicle body 101 due to the lifting and lowering of each working wheel 105 described later.

The work receiving wheel 105 and the lifting mechanism 107 for holding the work receiving wheel 105 are provided on both sides of the vehicle body 101 in pairs. As shown in FIG. 15, the lifting mechanism 107 includes a wheel holding member 107a that simultaneously holds the two work receiving wheels 105 rotatably along the traveling direction of the vehicle body 101, and each of the wheel holding members 107a held by the wheel holding member 107a. In the middle of the work receiving wheel 105, the wheel holding member 107
a rotatable link 107b for rotatably holding the link a.
An adjusting mechanism 111 for urging the work receiving wheel 105 to move in the elevating direction and adjusting the amount of the movement is provided alongside the work receiving wheel 105 via the switch 07b.

More specifically, the wheel holding member 107a of the elevating mechanism 107 is formed in a ladder shape, and the work receiving wheels 105 are held one by one at both ends. on the other hand,
The lifting link 107b is rotatably connected to a substantially intermediate portion of the wheel holding member 107a at a V-shaped bent portion,
As a result, the wheel holding member 107a is
Even when the angle fluctuates in 7b, it freely rotates and allows both working receiving wheels 105 to abut on the road surface.

Further, one end of the lifting link 107b is rotatably connected to the vehicle body 101 with the bent portion therebetween, and the other end is connected to the adjusting mechanism 111. The adjusting mechanism 111 includes an adjusting screw portion 111a disposed in a vertical direction, and a holding portion 111b fixedly mounted on the vehicle body 101 and engaged with the adjusting screw portion 111a in a screwed state. The adjusting screw portion 111a has an upper end portion formed in a quadrangular prism shape to facilitate biasing of rotational force by a tool such as a spanner, and a lower end portion is rotatably connected to the other end of the lifting link 107b. Therefore, by rotating the adjusting screw portion 111a, the lifting link 107
b is moved up and down to move the lifting link 10
7b is rotated, and thereby the wheel holding member 107 is rotated.
a and the work receiving wheel 105 can be freely raised and lowered with respect to the vehicle body 101.

In the prior art, when moving before starting work, as shown in FIG. 16A, each moving wheel 108 is lowered, and each working receiving wheel 105 is lifted off the road surface. In this state, driving and steering of the driving wheels 104 are performed. At the same time, as shown in FIG. 16B, the cutting edges of the respective cutters 102 are also floated from the road surface.

At the time of work, as shown in FIG. 17A, the moving wheels 108 are lifted upward, and the respective work receiving wheels 105 contact the road surface instead. At this time, the work receiving wheel 105 is adjusted in advance by the adjusting mechanism 111 via the elevating mechanism 107 so that at least the lower end surface of each work receiving wheel 105 is lower than the cutting edge of each cutter 102.

Then, the rotation of each cutter 102 is started when each work receiving wheel 105 is grounded, and the rotation of the lifting link 107b of the lifting mechanism 107 is adjusted by the adjusting mechanisms 111 on both side surfaces of the vehicle body 101. The receiving wheel 105 is pulled up to the vehicle body 101 side. This allows
The vehicle body 101 descends to the road surface side, and the respective cutters 102 disposed on the lower surface side of the vehicle body 101 bring the cutting edges into contact with the road surface. Further, as shown in FIG. 17 (B), from this state, the adjusting screw portion 111a of the adjusting mechanism 111 is further moved.
Is rotated by a tool such as a spanner, and the lowering operation of the vehicle body 101 is performed until the cutting edge of each cutter 102 reaches a predetermined depth.

After the depth of each cutter 102 is set, the driving of the drive wheels 104 is urged by a hydraulic motor 104a, and the vehicle body 101 moves while cutting by each cutter 102 is performed. A groove of a predetermined length is formed thereon.

[0016]

However, in the above conventional example, the height adjustment of the vehicle body 101 for setting the groove depth is performed manually by using a tool such as a spanner with respect to the adjustment screw 111a of the adjustment mechanism 111. Work was done. For this reason, there has been an inconvenience that a large amount of labor and work time are consumed for such complicated setting of the groove depth.

Further, since the work receiving wheels 105 are provided on both sides of the vehicle body 101, it is necessary to make adjustments on both of them, and it is difficult for a single operator to make adjustments, and uniform adjustments are made on both sides. There is a disadvantage that it is difficult and difficult to set the depth to a desired level.

[0018]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a road groove machining apparatus which can solve the disadvantages of the prior art and can facilitate and speed up the operation.

[0019]

SUMMARY OF THE INVENTION The present invention provides a vehicle body, a rotary cutter for cutting a road surface groove provided on the vehicle body, and cutting biasing means for biasing the rotational force of the cutter.
Wheels respectively mounted near one end and the other end of the vehicle body, moving biasing means for biasing one of the wheels to a rotational force, and a vehicle body of the wheel holding one of the wheels and holding one of the wheels And an elevating mechanism for freely moving up and down.

Then, a distance sensor for detecting a distance to a road surface which is changed by raising and lowering one of the wheels, a raising and lowering operation urging means for urging the raising and lowering operation of one of the wheels via a raising and lowering mechanism, Operation control means for controlling the operation of the urging means, the operation control means positioning the one wheel at a predetermined height with respect to the lifting / lowering operation urging means based on the output of the distance sensor. , Which has a wheel positioning control function.

In the above-described configuration, the wheels equipped with the lifting mechanism are in a position (initial position) in which the wheels are sufficiently pulled down from the vehicle body toward the road surface, and the cutting edge of the cutter is located between the vehicle body and the road surface. The distance that cannot be reached is secured. From this initial position, the rotation drive of the cutter is started, and the operation control means controls the operation of moving the wheels to the vehicle body side by the elevating operation urging means via the elevating mechanism.

As a result, the vehicle body approaches the road surface, the cutter comes into contact with the road surface, and groove machining is started. At this time, the distance sensor detects a changing distance between the vehicle body and the road surface and outputs the detected distance to the operation control means. On the other hand, in the operation control means, when the detected distance becomes a distance corresponding to the target groove depth by the wheel positioning control function, the moving operation of the wheel by the lifting / lowering operation urging means is stopped, and The wheel is positioned.

After the positioning of the wheels, the wheels are driven by the moving urging means, and a groove having a predetermined depth is formed on the road surface along the moving direction of the vehicle body.

Here, the above-described lifting / lowering operation urging means may be configured to include a hydraulic cylinder and a hydraulic valve.
In the case of such a configuration, the operation control means controls the opening and closing operation of the hydraulic valve, whereby the hydraulic cylinder is expanded and contracted, and the expansion and contraction operation is urged by the expansion and contraction mechanism to perform the lifting and lowering operation of the wheels.

In addition, the operation control means is provided with an input means, and the operation control means has a vehicle height calculating function for calculating a predetermined position of a wheel which goes up and down based on input information inputted from the input means. It is good also as composition. The wheel positioning control function described above controls the operation of the lifting / lowering operation urging means based on the predetermined position calculated by the vehicle body height calculation function.

The distance sensor may be an ultrasonic distance sensor or a laser beam irradiation type distance sensor.

Further, the above invention may be configured as follows. That is, the above-mentioned distance sensor is fixedly mounted on the vehicle body in a direction for detecting a distance in a direction perpendicular to the road surface when the blade edge of the cutter comes into contact with the road surface by raising and lowering the wheels.
According to the above-described vehicle height calculating function, the input information input from the input means is the groove depth d to be cut, and the distance sensor is in a state where the distance sensor is oriented perpendicular to the road surface. The distance from the vehicle to the road surface is L ₀ , the distance from the wheel that does not move up and down in the direction parallel to the road surface in the same state is L ₂ , and the distance from the wheel that does not move up and down in the direction parallel to the road surface is When the distance to the blade edge of the cutter is L ₁ , the radius of the wheel that does not move up and down is R ₁ , and the radius of the cutter is R ₂ , the distance H ₁ is calculated by the following equation.

[0028]

(Equation 2)

Furthermore, the wheel position control function described above, the distance sensor performs the operation control for a predetermined position of the wheel for lifting when it detects a distance H _1.

In the above arrangement, the depth d of the groove to be cut is input by the input means in advance. Distance H ₁ is calculated by the equation described above on the basis of the value of such a d. When the cutter starts rotating to cut the groove and the wheels are pulled up to the vehicle body and the vehicle body moves down to the road surface side, the change in the distance from the vehicle body to the road surface is detected by the distance sensor as needed. And output to the operation control means. Since the vehicle body is lowered, the detection distance is gradually reduced, the lifting motion of the wheel is stopped when reaching the distance H ₁ and equivalent calculated, the wheel is maintained in that position. Further, a rotational force is applied to one of the wheels to advance the vehicle body, whereby a groove having a target depth d is formed on the road surface.

The present invention is intended to achieve the above-mentioned object by each of the above-mentioned constitutions.

[0032]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIGS. This embodiment shows a road surface grooving device 10 that performs grooving (grooving) of a road surface. Among the configurations of the road surface groove processing device 10, the same components as those of the above-described road surface groove processing device 100 are denoted by the same reference numerals, and redundant description will be omitted.

As shown in FIG. 1, the road surface groove machining apparatus 10 includes a vehicle body 101 and a rotary cutter 102 for cutting a road surface groove, which is mounted on a portion of the vehicle body 101 facing the road surface.
(See FIG. 6), and a cutter driving engine 10 as cutting urging means for urging the rotational force of the cutter 102.
3, a driving wheel 104 as a wheel mounted on the lower front side of the vehicle body 101, a moving engine 106 as a moving urging means for urging the driving wheel 104 to rotate, and a rear part of the vehicle body 101. The work receiving wheels 105 (one is not shown) as two wheels mounted on each side of the vehicle, and the work receiving wheels 1
05 is provided with two elevating mechanisms 107 (one is not shown) that can freely move up and down with respect to the vehicle body 101.

Further, the road surface groove machining apparatus 10 includes a distance sensor 2 for detecting a distance to a road surface which changes as the work receiving wheel 105 is raised and lowered, and a lifting and lowering mechanism for the work receiving wheel 105 which is separately provided in parallel with a lifting mechanism 107. It has two elevating operation urging means 3 (one not shown) for energizing the operation, and an operation control means 4 (FIG. 2) for controlling the operation of the elevating operation urging means 3.

A moving wheel 108 (the moving wheel 108 on the opposite side is not shown) is provided on each side surface of the vehicle body 101 so as to be able to move up and down. The driver's seat 109 and the operation panel 5 are provided.

In the vicinity of the cutter 102 on the lower surface side of the vehicle body 101, a dust collecting device for sucking dust generated when cutting the groove is provided.
Although a steering sensor is provided to detect a marking on a groove or the like formed in advance on the road surface and cause the steering operation of the drive wheel 104 to follow the marking, none of them is shown.

Hereinafter, each part of the above-described road surface groove machining apparatus 10 will be described in detail.

As shown in FIG. 3, the above-described lifting / lowering operation urging means 3 is fixedly mounted on a hydraulic cylinder 31 which expands and contracts by hydraulic pressure, and one end of the hydraulic cylinder 31 so as to be rotatable. Hydraulic pump 106a connected to an engine 106 that urges hydraulic pressure to the hydraulic cylinder 31 (the hydraulic pump 106a is also used for driving the drive wheels 104, steering, and moving up and down the moving wheels 108). ) And a hydraulic valve 33 for switching between a biased state and a non-biased state of the hydraulic pressure from the hydraulic pump 106a. The lifting operation urging means 3
Are mounted on both sides of the vehicle body 101 in correspondence with the lifting mechanism 107.

The other end of the hydraulic cylinder 31 is rotatably connected to an elevating link 107b of an elevating mechanism 107. The elongating and lowering operation of the hydraulic cylinder 31 causes the elevating link 107b to rotate. The vertical movement is energized (the distance sensor 2 is not shown in FIG. 3).

As the hydraulic valve 33, a proportional control valve is used, and switching of the opening and closing and adjustment of the opening and closing amount are performed based on an operation command signal of the operation control means 4. Note that a servo valve may be used as the hydraulic valve 33.

Engines 103 and 106 are both
It has a starting means and an output adjusting means (not shown),
The start, stop, and output adjustment are performed by an operation command signal from the operation control means 4.

The cutter 102 is provided with the engine 103 described above.
4 through a transmission mechanism, and as shown in FIG. 4, a plurality (for example, 29
) Are equipped to rotate simultaneously. Further, the center axis of each cutter 102 is, as shown in FIG.
1 is set to be equidistant from the two work receiving wheels 105 on one side when the lifting / lowering mechanism 107 sets a horizontal state (the lower surface of the vehicle body 101 is parallel to the road surface).

Further, each of the cutters 102 is shown in FIG.
As shown in FIG. 5, when the vehicle body 101 is in a horizontal state, the work receiving wheels 105 and the elevating mechanism 1 are arranged such that the height of the central axis of the vehicle from the road surface is such that the cutting edge thereof comes into contact with the road surface.
07, the arrangement position is set.

The above-described distance sensor 2 is provided near one side of the cutter 102 on one side surface of the vehicle body 101. This distance sensor 2 is an ultrasonic distance sensor,
It comprises an oscillating source that oscillates ultrasonic waves toward the road surface and detection means that detects a reflected wave from the road surface. In addition,
This distance sensor is not limited to an ultrasonic distance sensor, and a laser beam irradiation type distance sensor including a laser light source and a light receiving unit may be used.

The distance sensor 2 is mounted on one side of the vehicle body 101 via a mounting arm 2a.
01 is fixed in a state in which it is oriented in a vertical direction with respect to the lower surface of the lower surface. For this reason, as shown in FIG.
Is in a horizontal state, the distance sensor 2 performs distance detection in a direction perpendicular to the road surface. The distance to the road surface in the state of such a drawing and H _0. As shown in FIG. 6A, the arrangement of each cutter 102 and the distance sensor 2 is set so that the detection direction of the distance sensor 2 (the direction of the dotted line in the figure) intersects the center axis of the cutter 102. Have been.

On the other hand, as shown in FIG. 6 (B), each work receiving wheel 5 is raised and lowered by the lifting and lowering operation urging means 3 via the lifting and lowering mechanism 107, and the direction in which the rear end of the vehicle body 101 descends. When the distance sensor 2 is tilted to
The distance detection to the road surface in the direction inclined at the same angle as that of 1 is performed. In this case, since the rear end of the vehicle body 101 approaches the road surface, the road surface is cut by the cutter 102 in accordance with the approach distance. The groove depth of the target by such cutting as d, the distance detected by the distance sensor 2 when dug to a depth d and H _1.
The relationship between these groove depth d and the detection distance H ₁ below.

Next, the operation control means 4 will be described.
As shown in FIG. 2, the operation control means 4 includes a hydraulic cylinder 31 (more precisely, a hydraulic cylinder 3) of the lifting / lowering operation urging means 3.
Hydraulic valve 33 attached to 1), moving engine 1
06, hydraulic cylinder 1 for steering of drive wheel 104
04d (more precisely, a hydraulic valve attached to the hydraulic cylinder 104d), a hydraulic motor 104a for driving the drive wheel 104
(More precisely, a hydraulic valve attached to the hydraulic motor 104a), a hydraulic cylinder 108a (more precisely, a hydraulic valve attached to the hydraulic cylinder 108a) for urging the moving wheel 108 up and down, and the engine 103 for driving the cutter. Perform operation control.

The operation control means 4 is provided with an operation panel 5 as an input means. Based on the operation command input from the operation panel 5, the operation control means 4 controls the movement of the engine 106 for movement. Engine 103 for starting / stopping and output, expansion and contraction of hydraulic cylinder 104d for steering, output of hydraulic motor 104a for driving driving wheels, expansion and contraction of hydraulic cylinder 108a for moving up and down wheels for movement, and cutter driving
It controls operation such as starting and stopping and output. The operation panel 5 inputs a groove depth d to be cut.

The operation control means 4 outputs the detected distance detected from the distance sensor 2 described above. On the other hand, the operation control means 4 expands / contracts the hydraulic cylinder 31 of the lifting / lowering operation urging means 3 through the hydraulic valve 33 by a predetermined amount in order to position the work receiving wheel 105 at a predetermined position based on the detected distance. Wheel positioning control function 41 to be performed,
It has a vehicle height calculating function 42 for calculating a predetermined position of the work receiving wheel 105 based on a groove depth d as a cutting target as input information.

The wheel positioning control function 41 and the vehicle height calculating function 42 will be described in more detail. FIG. 7 is an explanatory diagram in which only the main parts of the road surface groove processing device 10 are extracted and shown. FIG. 7A shows the driving wheels 104, the cutter 102, and the distance sensor 2 when the vehicle body 101 is in a horizontal state. FIG. 7B shows the arrangement and distance, and FIG.
Shows the arrangement and distance of each part in the state where it is cut to
FIG. 7C shows an enlarged state of a main part of FIG. 7B.

As shown in FIGS. 7A and 7B, R
₁ is the radius of the drive wheels 104, R ₂ is the radius of the cutter 102,
L ₁ is the distance in the horizontal direction to the ground point of the cutting edge of the cutter 102 from the ground point of the drive wheel 104, L ₂ and L ₁ is the distance (in this embodiment of the horizontal direction from the drive wheel 104 to a distance sensor 2 Although the L ₂ are set equidistant shall mention the case where the distance as illustrated are different), also to road H ₀ from the distance sensor 2 when the vehicle body 101 is horizontally as described above distance, H ₁ denotes the detection distance of the distance sensor 2 in the case of cutting to the groove depth d. Here, it is assumed that the inclination angle of the inclined body 101 is θ, the distance between the centers of the driving wheels 104 and the cutter 102 is L ₀ , and the inclination angle of a straight line connecting these centers with respect to the road surface is θ ₁ .

First, from FIG. 7A, the following equations (1),
(2) is derived.

[0053]

(Equation 3)

[0054] Further, as shown in FIG. 7 (B), the relationship between the drive wheel 104 and difference and L ₀ of the height from the center of the road surface of the cutter 102, the following equation (3) is derived.

[0055]

(Equation 4)

As shown in FIG. 7C, the distance from the center of the cutter 102 to the road surface in the measurement direction of the distance sensor 2 is h, and the distance sensor 2 and the cutter 102
The following equation (4) is derived from the relationship between the difference between the lengths of the upper and lower bases of the trapezoid formed between and the height of the trapezoid.

[0057]

(Equation 5)

Here, h is obtained by the following equation (5).

[0059]

(Equation 6)

The following equation (6) is obtained by substituting the above equation (1) into the above equation (2).

[0061]

(Equation 7)

Further, by substituting the above equations (1) and (6) into the above equation (3) and eliminating L0 and θ1, θ is represented by the following equation (7).

[0063]

(Equation 8)

By substituting the above equations (5) and (7) into the above equation (4), H ₁ is expressed by the following equation (8).

[0065]

(Equation 9)

Here, as described above, since the distance sensor 2 and the central axis of the cutter 102 are disposed at the same position in the horizontal direction, L ₁ = L ₂ , and the above equation (8) is (9).

[0067]

(Equation 10)

In the vehicle body height calculating function 42, when the groove depth d to be cut is input from the operation panel 5 as input information, the distance H ₁ is calculated based on the above equation (9), and the wheel H1 is calculated. the positioning control function 41, when performing drives the vertical movement urging means 3 positioned in the working receiving wheel 105, the vertical movement biasing when the detected distance from the distance sensor 2 is equal to the distance H ₁ The operation control of stopping the means 3 and positioning each work receiving wheel 105 at that position is performed.

Hereinafter, the operation of the road surface groove machining apparatus 10 having the above-described configurations will be described with reference to FIG. First, each of the engines 103 and 106 starts driving (step S
1). At this time, the moving wheels 108 are lowered below the cutting edges of the work receiving wheels 105 and the cutter 102.

The road groove processing apparatus 10 is moved to a predetermined position on the road surface, and the moving wheel 108 is raised (step S2). At this time, each work receiving wheel 105
Is lowered at least below the cutting edge of each cutter 102.

[0071] groove depth d to the cutting target through the operation panel 5 is inputted, and based on this, the distance H ₁ is calculated by the vehicle height calculation unit 42 (step S3).

The hydraulic valve 33 is opened, the hydraulic cylinder 31 is retracted, and the rear end of the vehicle body 101 is lowered. As a result, the cutting edge of each cutter 102 comes into contact with the road surface, and groove cutting is started (step S4).

[0073] The wheel positioning control function 41, the detection distance to be detected from the distance sensor 2 is compared for equality with the calculated distance H ₁ (step S5). The lowering operation of the vehicle body 101 is continued until they become equal, and when they become equal, the drive of the lifting / lowering operation urging means 3 is stopped, and each work receiving wheel 105 is fixed at that position (step S6). This allows
Each cutter 102 cuts from the road surface to a depth d.

When the hydraulic motor 104a is started, the driving wheels 1
04 is driven to move the road surface groove processing device 10 on the road surface. As a result, a groove having a depth d is formed on the road surface, and after a predetermined distance corresponding to the target groove length, the driving wheel 104
Is stopped (step S7).

The moving wheel 108 is lowered to a position lower than the cutting edge of each cutter 102, and the road surface groove processing device 10 is moved from the road surface to complete the operation.

As described above, according to the present embodiment, the distance sensor 2 is provided so that the vehicle body 1 descending to the road surface side can be provided.
While detecting the distance to the road surface that changes with 01,
By the wheel positioning control function 41 of the operation control means 4,
Since the operation control for raising and lowering each work receiving wheel 105 to a predetermined position is performed on the lifting / lowering operation urging means 3 based on the detection distance, it is necessary to manually adjust the height of the vehicle body as in the related art. In addition, it is possible to eliminate such complicated work and to effectively suppress waste of a large amount of labor and work time. For this reason, it is possible to improve the efficiency and speed of the entire road surface groove cutting work.

Further, since the lifting and lowering operation urging means 3 is provided for each of the work receiving wheels 105 on each side of the vehicle body 101, the operation of raising and lowering the work receiving wheels 105 on both sides can be performed simultaneously. Adjustment can be easily performed by a single operator.

Further, an operation panel 5 is provided, and the body depth calculation function 42 of the operation control means 4 in accordance with the input information from the operation panel 5 causes the target groove depth d input from the operation panel 5 to be cut.
From the expected detection distance H ₁ by the distance sensor 2 which is calculated on the basis of the above-mentioned equation (9), actually because of the arrangement to determine the vertical position of the vehicle body 101 by comparing the detected detected distance from the distance sensor This eliminates the need for the operator to calculate the groove depth from the detection distance, thereby eliminating complicated work,
It is possible to further increase the efficiency and speed of the entire road surface groove cutting work.

Here, an application example of the groove processing by the road surface groove processing apparatus 10 will be described. In the processing operation of the road surface groove processing device 10 described above, the distance sensor 2
The distance to the road surface is detected, and the depth of the machining groove is determined based on the distance. However, according to this, when fine irregularities are generated on the road surface, the operation control of the lifting / lowering operation urging means 3 is performed according to the irregularities, and similar irregularities are formed on the bottom surface of the machining groove. .

Therefore, in such an application example, as shown in FIG. 9, a rope M (ribbon-shaped, rod-shaped or flat-shaped) having a predetermined height is previously placed at a processing position on the road surface in parallel with the processing direction along the processing direction. Anything that can maintain a uniform height from the road surface in a constant longitudinal direction, such as a shape-like object, may be used, and the distance sensor 2 employs a method of causing the rope M to perform distance detection. .

According to this application example, as shown in FIG. 10, even when there is road surface unevenness T (unevenness) on the road surface, the bottom portion S of the machining groove is not affected by the road surface unevenness T. It is formed parallel to the rope M.

Further, the cutter 102 of the above-described road groove processing apparatus 10 may be replaced with a polishing roller, and each configuration relating to the road groove processing apparatus 10 may be applied to the road surface polishing apparatus.
That is, a cylindrical polishing roller 102A having the same outer diameter as the cutter 102 and having the same center axis position is provided, and this polishing roller 102A is connected to the engine 103.

In the planar polishing operation of the road surface by the cylindrical polishing roller, when the raising and lowering mechanisms 107 at both ends of the polishing roller are manually adjusted, as shown in FIG. The inclination of the rollers causes the road surface to be inclined (d ₁ ≠ d ₂ : d ₁ , d ₂ is the polishing amount at each end). In this case, in addition to this, a deviation in the amount of wear occurs at both end portions of the polishing roller (FIG. 11C), and the vehicle 10 in the case of performing the polishing operation again.
1 had an inconvenience that the height adjustment on both side surfaces became more difficult (d ₁ = d ₂ , R ₁ ≠ R ₂ : R ₁ , R ₂ is the distance of the center axis from the road surface at each end). .

However, the above-described road groove processing apparatus 1
When 0 is applied to the road surface polishing apparatus, the amount of elevating by the elevating mechanism 107 can be set to the right and left uniformly by the operation control of the elevating operation urging means 3 based on the detection distance of the distance sensor 2. Each of the above inconveniences is resolved, and FIG.
As shown in (A), the amount of polishing at both ends can be made uniform (d ₁ = d ₂ ), thereby making it possible to prevent inclination of the amount of wear at both ends. This also makes it possible to provide a road surface polishing apparatus having the same effect as in the case of groove processing.

[0085]

According to the present invention, a distance sensor is provided to detect a distance to a changing road surface together with a vehicle body descending to the road surface side, and to move up and down based on the detected distance by a wheel positioning control function of operation control means. Since the operation biasing means is configured to perform operation control for raising and lowering the wheels to a predetermined position, there is no need to manually adjust the height of the vehicle body as in the related art, eliminating such cumbersome work labor, It is possible to effectively suppress waste of labor and working time. For this reason, it is possible to improve the efficiency and speed of the entire road surface groove cutting work.

Even when the vehicle body has wheels on both sides, the lifting operation of both wheels can be performed simultaneously by equipping each wheel with the lifting operation urging means. The adjustment can be easily performed by the user.

Further, in the case where the input means is provided, and the body height calculating function of the operation control means calculates a predetermined position of the wheel to be raised and lowered in accordance with the input information, cutting is performed in accordance with various situations. The setting of the groove depth can be changed, and the workability of the device can be improved.

Further, by the vehicle body height calculating function, the expected detection distance by the distance sensor calculated based on a constant formula from the groove depth as the cutting target input from the input means,
In the case of a configuration in which the ascent / descent position of the vehicle body is determined by comparing the detected distance detected by the distance sensor with the actual distance, the operator does not need to calculate the groove depth from the detected distance, thereby eliminating complicated work. However, it is possible to further increase the efficiency and speed of the entire road surface groove cutting work.

Since the present invention is constructed and functions as described above, according to the present invention, it is possible to provide an excellent road surface groove processing device which has not been achieved conventionally.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a block diagram showing one embodiment of the present invention.

FIG. 3 is a partial extraction explanatory view showing a configuration around a work receiving wheel of the road surface groove processing device disclosed in FIG. 1;

FIG. 4 is a schematic explanatory view showing an arrangement state of each cutter.

FIG. 5 is an explanatory diagram showing a parallel state of a vehicle body.

6A and 6B are partial explanatory views showing a machining operation of the road surface groove machining apparatus. FIG. 6A shows a parallel state of the vehicle body before cutting, and FIG. Show.

FIG. 7 is an explanatory diagram extracting and showing only a main part of the road surface groove processing device. FIG. 7A is a diagram illustrating driving wheels, a cutter, and a distance sensor when the vehicle body is in a horizontal state. FIG. 7B shows the arrangement and distance, and FIG. 7C shows the arrangement and distance of each part in a state where the cutting is performed to the target groove depth.
7B shows a state where the main part of FIG. 7B is enlarged, and shows a state where the main part is enlarged.

FIG. 8 is a flowchart showing the operation of the embodiment of the present invention.

FIG. 9 is a schematic explanatory view showing an application example.

FIG. 10 is a cross-sectional view illustrating a processed groove on a road surface according to an application example.

FIG. 11 is an explanatory view showing a road surface polishing state in an example in which the embodiment of the invention is applied to a road surface polishing apparatus;
11A shows a road surface polishing state by the road surface polishing apparatus to which the embodiment of the invention is applied, and FIG. 11B shows a road surface polishing state when the position of the polishing roller is manually adjusted. (C) shows the worn state of the polishing roller whose position has been adjusted manually.

FIG. 12 is a perspective view showing a conventional example.

FIG. 13 is a perspective view showing a configuration around a drive wheel disclosed in FIG. 12;

FIG. 14 is a perspective view showing a configuration around a moving wheel disclosed in FIG. 12;

FIG. 15 is a perspective view showing a configuration of a work receiving wheel disclosed in FIG. 12;

FIG. 16 is a partially omitted plan view showing a moving operation of a conventional example, in which FIG. 16 (A) shows a state of a work receiving wheel before cutting, and FIG. 16 (B) shows a state of a cutter before cutting. Is shown.

17A and 17B are partially omitted plan views showing a working operation of a conventional example, in which FIG. 17A shows a state in which a moving wheel is raised before cutting, and FIG. 17B is a cutter after starting cutting. 2 shows the operation of positioning the cutting depth of the cutting.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Road surface groove processing apparatus 101 Body 102 Rotary cutter 103 Engine for driving the cutter (cutting urging means) 104 Drive wheel (one wheel) 105 Work receiving wheel (the other wheel) 106 Engine for movement (with moving) 107 Elevating mechanism 2 Distance sensor 3 Elevating operation urging means 31 Hydraulic cylinder 33 Hydraulic valve 4 Operation control means 41 Wheel positioning control function 42 Body height calculation function 5 Operation panel (input means)

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Yukatsu Koizumi 2-16-46 Minami Kamata, Ota-ku, Tokyo Inside Tokimec Co., Ltd.

Claims (7)

[Claims] 1. A vehicle body, a rotary cutter for cutting a road surface groove mounted on the vehicle body, cutting biasing means for biasing a rotational force of the cutter, and a front and rear vicinity of the vehicle body, respectively. A wheel for supporting the vehicle body on a road surface, a moving urging means for urging one of the wheels to rotate, and an elevating mechanism for holding one of the wheels so as to be able to move up and down from the vehicle body A distance sensor that detects a distance to a road surface that is changed by lifting and lowering the one wheel, a lifting operation biasing unit that biases the lifting operation of the wheel held by the lifting mechanism, Operation control means for controlling the operation of the urging means, wherein the operation control means comprises:
A road surface groove processing device having a wheel positioning control function for performing an operation control for positioning a wheel held by the lifting mechanism at a predetermined position based on an output of the distance sensor. 2. A vehicle body, a rotary cutter for cutting a road surface groove, which is provided at a portion facing the road surface near the rear of the vehicle body, a cutting urging means for urging a rotational force of the cutter, A drive wheel provided in front of the vehicle body, a moving urging means for biasing the drive wheel to a rotational force, a work receiving wheel provided behind the vehicle body, and a work receiving wheel A distance sensor that detects a distance to a road surface that is changed by lifting and lowering the work receiving wheel, and a lifting operation urging unit that urges the lifting operation of the work receiving wheel. And operation control means for controlling the operation of the lifting operation urging means, wherein the operation control means
A road surface groove processing device having a wheel positioning control function for performing an operation control for positioning the work receiving wheel at a predetermined position based on an output of the distance sensor. 3. The apparatus according to claim 1, wherein the lifting / lowering operation urging means includes a hydraulic cylinder and a hydraulic valve.
The road surface grooving device as described in the above. 4. A vehicle height calculating function in which an input means is provided in addition to the motion control means, and wherein the motion control means calculates a predetermined position of the ascending / descending wheel based on input information input from the input means. The road surface groove processing apparatus according to claim 1, 2, or 3, further comprising: 5. The operation control device according to claim 1, wherein the distance sensor is fixedly mounted on the vehicle body in a direction for detecting a distance in a direction perpendicular to the road surface when the cutting edge of the cutter comes into contact with the road surface by raising and lowering the wheels. The input information input from the input means is used to calculate the groove depth d to be cut by the vehicle height calculating function of the means.
And the distance from the distance sensor to the road surface in a state where the distance sensor is oriented perpendicular to the road surface is H
₀ , the distance from the wheel that does not perform the elevation in the direction parallel to the road surface in the same state to the distance sensor is L ₂ , and the cutting edge of the cutter from the wheel that does not perform the elevation in the direction parallel to the road surface in the same state the distance to the L _1, the radius of the wheel is not performed the elevator is R _1, the radius of the cutter R ₂
When it is, the feature that calculates the distance H ₁ from the following equation, by the wheel positioning control function controls the operation of the predetermined position of the wheels of the lift when the said distance sensor detects the distance H ₁ The road surface groove machining apparatus according to claim 4. (Equation 1) 6. The road surface groove machining apparatus according to claim 1, wherein the distance sensor is an ultrasonic distance sensor. 7. The road surface groove processing apparatus according to claim 1, wherein the distance sensor is a laser beam irradiation type distance sensor.