JP2003253617A - Road surface cutter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To form a cutting groove at a prescribed interval on a road surface. <P>SOLUTION: This road surface cutter has a cutting device and a guide wheel in a bottom part of a self-traveling vehicle, and vertically moves the cutting device by interlocking with rotation of the guide wheel. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a road surface cutting machine,
In particular, the present invention relates to a road surface cutting machine for forming cutting grooves at predetermined intervals on a road surface.

[0002]

2. Description of the Related Art Conventionally, as a method of forming cutting grooves at predetermined intervals on a road surface, a method of manually moving a cutting device of a road surface cutting machine up and down has been mainly used. Further, a method of arranging heated pipes on a road surface at a predetermined interval and rolling them by rollers, a method of installing a groove type frame on the road surface immediately after paving, and rolling it are known. Further, a method of rolling the heated road surface or the road surface immediately after paving with a roller having a projection welded to a wheel has been proposed.

[0003]

However, the above-mentioned prior art has the following problems. First, in the method of manually moving the cutting device of the road surface cutting machine up and down, it is difficult to match the traveling distance and the cutting position, and it is difficult to form cutting grooves at predetermined intervals. Secondly, the methods using heated pipes and groove-type molds all require a lot of human power, which requires time and labor. Thirdly, the method using the roller in which the protrusions are welded to the wheel has a problem that the density of the finished pavement varies. An object of the present invention is to solve these problems of the prior art.

[0004]

In order to solve the above-mentioned problems, a road surface cutting machine according to a first aspect of the present invention is a road surface cutting machine having a cutting device and a guide wheel at the bottom of a self-propelled vehicle. The cutting device is configured to move up and down in conjunction with the rotation of the guide wheel. A road surface cutting machine according to a second aspect of the present invention is the road surface cutting machine according to the first aspect, wherein the road surface cutting machine is disposed above the guide wheel and the lower end portion of the road surface cutting machine is provided with a bearing member. And a tubular member engaged with the guide wheel so as to be rotatable, connected to the vehicle body of the self-propelled vehicle through a connecting member inserted into the cylinder of the tubular member, and It is characterized by having a sliding member that slides up and down in conjunction with rotation and a conversion member that converts the rotational movement of the guide wheel into the sliding movement of the sliding member.

A road surface cutting machine according to a third aspect of the present invention is the road surface cutting machine according to the second aspect, wherein the conversion member is
It is characterized in that it comprises a plate-like member provided on a side portion of the guide wheel and having a substantially regular polygonal shape, and a member receiving wheel rotatably engaged with a lower end portion of the sliding member. A road surface cutting machine according to a fourth aspect of the present invention is the road surface cutting machine according to the second aspect, wherein the lower end portion of the conversion member is engaged at a position deviated from the center of the guide wheel side portion. It is characterized in that it comprises a connecting rod whose upper end is engaged with. A road surface cutting machine according to a fifth aspect of the present invention is the road surface cutting machine according to the first aspect, wherein the road surface cutting machine is disposed above the guide wheel and a guide wheel having a substantially regular polygonal shape. At the same time, a lower end portion of the guide wheel is engaged with the guide wheel so that the guide wheel can rotate, and an upper end portion of the guide member is fixed to a vehicle body of the self-propelled vehicle.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to FIGS.
A description will be given based on FIG. A road surface cutting machine according to the present invention is a self-propelled vehicle 1 including a cutting device 3 at the bottom of a vehicle body 2.
Consists of. The cutting device 3 is located on the rear right side of the vehicle body,
A guide wheel 4 consisting of two wheels is provided in front of it.

FIG. 1 is a perspective view according to the first embodiment of the present invention. The guide wheel 4 is rotatably supported at the lower end of the tubular member 6 via the axle bearing member 10.
An approximately square plate-shaped member 5 is provided in the center of the side part sandwiched between the two wheels.
Is attached. The plate-shaped member 5 has a center position coinciding with the axle of the guide wheel 4 and rotates integrally with the guide wheel 4. A sliding member 7 is inserted inside the tubular member 6 disposed above the guide wheel 4, and a rotatable member receiving wheel 8 is attached to the guide wheel 4 at the lower end of the sliding member 7. It is installed so as to contact the plate-shaped member 5. When the guide wheel 4 rotates and the plate-shaped member 5 and the member receiving wheel 8 come into contact with each other, the sliding member 7 slides up and down inside the tubular member 6. The upper end of the sliding member 7 is connected to the vehicle body 2 of the self-propelled vehicle 1 via the connecting member 9, and the sliding member 7 slides up and down to arrange cutting on the rear right side of the vehicle body 2. The device 3 is configured to move up and down in conjunction with each other.

Next, the operation will be described. In FIG. 2, arrow a is the traveling direction of the vehicle 1. When the self-propelled vehicle 1 travels in the arrow A direction, the guide wheel 4 rotates in the arrow B direction. When the self-propelled vehicle 1 is at the position shown in FIG. 2A, the side portion of the plate member 5 is in contact with the member receiving wheel 8 and the sliding member 7 is at the bottom dead center. At this time, the rotor 11 of the cutting device 3
Is in contact with the road surface, and the road surface is cut by the rotor 11. When the self-propelled vehicle 1 travels in the direction of arrow A, as shown in FIG.
When it reaches the position of (b), the apex portion of the plate member 5 comes into contact with the member receiving wheel 8 to move the sliding member 7 upward.
At this time, the rotor 11 of the cutting device 3 also moves upward in conjunction with this and separates from the road surface, so that the road surface is not cut. When the self-propelled vehicle 1 further travels in the direction of arrow a and advances to the position shown in FIG. 2A, the side portion of the plate member 5 again contacts the member receiving wheel 8 and the sliding member 7 is moved downward. Move to.
At this time, the rotor 11 of the cutting device 3 also moves downwardly in contact with the road surface and comes into contact with the road surface, so that the road surface is cut by the rotor 11. Hereinafter, the above-described operation is repeated as the self-propelled vehicle 1 travels, so that cutting grooves having predetermined intervals are formed on the road surface (see FIG. 6B). The locus of the rotor 11 at this time is as shown in FIG.

FIG. 3 is a front view according to the second embodiment of the present invention. The guide wheel 4 is rotatably supported on the lower end of the tubular member 6 via an axle bearing member 10 '. A sliding member 7 is provided inside the tubular member 6 disposed above the guide wheel 4.
Is inserted, and slides up and down inside the tubular member 6 in conjunction with the rotation of the guide wheel 4. The guide wheel 4 and the sliding member 7 are connected by a connecting rod 12.
The lower end of is engaged at a position displaced from the center of the guide wheel 4,
The upper end of the connecting rod 12 is engaged with a height adjusting screw 13 provided inside the sliding member 7. The height adjusting screw 13 is configured to slide vertically together with the sliding member 7. A hydraulic motor 14 is arranged above the height adjusting screw 13. By rotating the height adjusting screw 13 with the hydraulic motor 14, the relative height between the guide wheel 4 and the cutting device 3 is finely adjusted. be able to. The upper end of the sliding member 7 is connected to the vehicle body 2 of the self-propelled vehicle 1 via the connecting member 9, and the sliding member 7 slides up and down to provide cutting on the right side of the rear portion of the vehicle body 2. The device 3 is configured to move up and down in conjunction with each other.

Next, the operation will be described. In FIG. 4, arrow a is the traveling direction of the self-propelled vehicle 1. When the self-propelled vehicle 1 travels in the arrow A direction, the guide wheel 4 rotates in the arrow B direction. When the self-propelled vehicle 1 is in the position shown in FIG. 4A, the lower end of the connecting rod 12 is located at the top dead center position which is displaced upward from the center of the guide wheel 4. At this time, the rotor 11 of the cutting device 3 is located away from the road surface, so the road surface is not cut. When the self-propelled vehicle 1 travels in the direction of arrow A and goes through the position of FIG. 4 (b) to the position of FIG. 4 (c), the lower end of the connecting rod 12 is displaced downward from the center of the guide wheel 4. It moves to the position of the dead point and moves the sliding member 7 downward. At this time, the rotor 11 of the cutting device 3 also moves downwardly in contact with the road surface and comes into contact with the road surface, so that the road surface is cut by the rotor 11. When the self-propelled vehicle 1 further travels in the direction of arrow A and advances to the position shown in FIG. 4 (a) through the position shown in FIG. 4 (d), the rotor 11 of the cutting device 3 moves away from the road surface. The road surface is not cut because it moves. Hereinafter, the above-described operation is repeated as the self-propelled vehicle 1 travels, whereby cutting grooves are formed at predetermined intervals on the road surface.

FIG. 5 is a side view according to the third embodiment of the present invention. The guide wheel 4 is rotatably supported by the support member 15, and the self-propelled vehicle 1 is also supported by the support member 15.
It is fixed to the car body 2. In the present embodiment, the shape of the guide wheel 4 is a substantially square shape, but the shape is not limited to this, and a substantially regular polygonal shape is applicable. The cutting device 3 is movable up and down in conjunction with the vehicle body 2.

Next, the operation will be described. In FIG. 5, arrow a is the traveling direction of the self-propelled vehicle 1. When the self-propelled vehicle 1 travels in the arrow A direction, the guide wheel 4 rotates in the arrow B direction. When the self-propelled vehicle 1 is at the position shown in FIG. 5A, the side portion of the guide wheel 4 is in contact with the road surface and the support member 15 is at the bottom dead center. At this time, the rotor 11 of the cutting device 3 is in a position in contact with the road surface, and the road surface is cut by the rotor 11. When the self-propelled vehicle 1 travels in the direction of arrow A and advances to the position shown in FIG. 5B, the apex portion of the guide wheel 4 comes into contact with the road surface and the supporting member 1
Move 5 upwards. At this time, the rotor 1 of the cutting device 3
Since 1 also moves upward and separates from the road surface,
The road surface is not cut. When the self-propelled vehicle 1 further travels in the direction of arrow a and reaches the position shown in FIG. 5C, the side portion of the guide wheel 4 again contacts the road surface, and the support member 15 moves downward. At this time, the rotor 11 of the cutting device 3 also moves downwardly in contact with the road surface and comes into contact with the road surface, so that the road surface is cut by the rotor 11. Hereinafter, the above-described operation is repeated as the self-propelled vehicle 1 travels, whereby cutting grooves are formed at predetermined intervals on the road surface.

[0013]

According to the road surface cutting machine of the present invention, it is possible to easily and accurately form cutting grooves at predetermined intervals on the road surface as compared with the conventional method. In particular, by providing a continuous cutting groove in the shoulder or central portion of the roadway, when the running vehicle is about to deviate from the main roadway due to drowsiness driving, the tire of the running vehicle passes through the cutting groove. A so-called alert structure can be provided in which a sound or a vibration that sometimes occurs alerts the driver of the vehicle.

Most of the conventional warning structures of this type are provided with a convex portion. However, in areas where snow removal is performed on the roadway during the winter, such as snowy cold regions, the convex portion is peeled off from the road surface due to snow removal. There is a risk that However, according to the road surface cutting machine of the present invention, since the cutting groove is provided on the road surface, there is no such concern.

[Brief description of drawings]

FIG. 1 is a perspective view showing a road surface cutting machine according to the present invention.

FIG. 2 is a side view showing the first embodiment of the present invention.

FIG. 3 is a front view showing a road surface cutting machine according to a second embodiment of the present invention.

FIG. 4 is a side view showing a second embodiment of the present invention.

FIG. 5 is a side view showing a third embodiment of the present invention.

FIG. 6 is a schematic view showing the trajectory of the rotor and the shape of the groove when the cutting groove is formed in the present invention.

[Explanation of symbols]

1 self-propelled vehicle 2 car body 3 cutting equipment 4 guide wheels 5 Plate-shaped members 6 tubular members 7 Sliding member 8 member receiving wheels 9 Connection member 11 rotor

Continued front page    (72) Inventor Naoyuki Kataoka             1-19-11 Kyobashi, Chuo-ku, Tokyo Japan             Dodo Co., Ltd. (72) Inventor Takayoshi Hayama             1-19-11 Kyobashi, Chuo-ku, Tokyo Japan             Dodo Co., Ltd. (72) Inventor Yuki Nakamura             2-20-6 Kanda Jinbocho, Chiyoda-ku, Tokyo               Within Wirtgen Japan Co., Ltd. F term (reference) 2D053 AA03 AA22 AB02 BA01

Claims (5)

[Claims] 1. A road surface cutting machine having a cutting device and a guide wheel at the bottom of a self-propelled vehicle, wherein the cutting device moves up and down in conjunction with rotation of the guide wheel. Road cutting machine. 2. A tubular member in which the road surface cutting machine is disposed above the guide wheel and is engaged with the guide wheel such that the lower end portion of the road cutting machine is rotatable via an axle bearing member. A sliding member that is inserted into the cylinder of the tubular member, is connected to the vehicle body of the self-propelled vehicle through a connecting member, and slides up and down in conjunction with the rotation of the guide wheel; The road surface cutting machine according to claim 1, further comprising a conversion member that converts the rotational movement of the sliding movement into the sliding movement of the sliding member. 3. A plate-shaped member, wherein the conversion member is provided on a side portion of the guide wheel and has a substantially regular polygonal shape, and a member receiving wheel rotatably engaged with a lower end portion of the sliding member. The road surface cutting machine according to claim 2, wherein the road surface cutting machine comprises: 4. The conversion member comprises a connecting rod having a lower end engaged with a position displaced from the center of the guide wheel side and an upper end engaged with the sliding member. Item 2. A road surface cutting machine according to item 2. 5. The road surface cutting machine has a guide wheel having a substantially regular polygonal shape, and the guide wheel is disposed above the guide wheel and has a lower end portion such that the guide wheel is rotatable. The road surface cutting machine according to claim 1, wherein the upper end portion of the road surface cutting member is engaged with the support member and is fixed to the vehicle body of the self-propelled vehicle.