JP3794334B2 - Road surface cutting machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a road surface cutting machine, and more particularly to a road surface cutting machine for forming cutting grooves having a predetermined interval on a road surface.
[0002]
[Prior art]
As a method for forming the cutting grooves at a predetermined interval on the road surface, conventionally, a method of manually moving the cutting device of the road surface cutting machine up and down manually has been performed. There are also known a method in which heated pipes are arranged on a road surface at predetermined intervals, and this is rolled with a roller, a method in which a groove-shaped mold is installed on a road surface immediately after paving and the like is rolled. Furthermore, a method has also been proposed in which a heated road surface or a road surface just after paving is rolled with a roller in which protrusions are welded to wheels.
[0003]
[Problems to be solved by the invention]
However, the above 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 travel distance and the cutting position, and it is difficult to form the cutting grooves at a predetermined interval.
Second, the methods using heated pipes and grooved molds all depend on human power and require time and labor.
Thirdly, the method using a roller in which protrusions are welded to wheels has problems such as variations in the density of the finished pavement.
An object of the present invention is to solve these problems of the prior art.
[0004]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, a road surface cutting machine according to a first aspect of the present invention is a road surface cutting machine comprising 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.
The 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 wheel cutting machine is interposed through an axle bearing member. A cylindrical member engaged with the guide wheel so as to be rotatable, and inserted into a cylinder of the cylindrical member and connected to the vehicle body of the self-propelled vehicle via a connecting member, and the guide wheel It has a sliding member that slides up and down in conjunction with rotation, and a conversion member that converts the rotational motion of the guide wheel into the sliding motion of the sliding member.
[0005]
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 provided on a side portion of the guide wheel and the plate-shaped member is a substantially regular polygon. It consists of a member receiving wheel rotatably engaged with the lower end part of the said sliding member, It is characterized by the above-mentioned.
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 conversion member is engaged with the lower end portion at a position shifted from the center of the guide wheel side portion and the sliding member. It is characterized by comprising a connecting rod whose upper end is engaged.
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 a guide wheel having a substantially regular polygon shape and a guide wheel. The lower end portion is engaged with the guide wheel so that the guide wheel can rotate, and the upper end portion is formed of a support member fixed to the vehicle body of the self-propelled vehicle.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to FIGS. The road surface cutting machine according to the present invention includes a self-propelled vehicle 1 including a cutting device 3 at the bottom of a vehicle body 2. The cutting device 3 is located on the right side of the rear portion of the vehicle body, and a guide wheel 4 composed of two wheels is provided in front of the cutting device 3.
[0007]
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 portion of the cylindrical member 6 via an axle bearing member 10, and a substantially regular square plate-like member 5 at the center of the side portion sandwiched between the two wheels of the guide wheel 4. Is attached. The center position of the plate-like member 5 coincides with the axle of the guide wheel 4 and is rotated integrally with the guide wheel 4. A sliding member 7 is inserted inside a cylindrical 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 come into contact with the plate-like member 5. When the guide wheel 4 rotates and the plate-like member 5 and the member receiving wheel 8 come into contact with each other, the sliding member 7 slides up and down inside the cylindrical member 6. The upper end portion of the sliding member 7 is connected to the vehicle body 2 of the self-propelled vehicle 1 through the connecting member 9, and the cutting disposed on the right side of the rear portion of the vehicle body 2 as the sliding member 7 slides up and down. The apparatus 3 is configured to move up and down in conjunction with each other.
[0008]
Next, the operation will be described. In FIG. 2, the arrow “a” is the traveling direction of the self-propelled vehicle 1. When the self-propelled vehicle 1 travels in the direction of arrow A, the guide wheel 4 rotates in the direction of arrow B. When the self-propelled vehicle 1 is in the position of FIG. 2A, the side portion of the plate-like 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 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 proceeds to the position shown in FIG. 2B, the apex portion of the plate-like member 5 comes into contact with the member receiving wheel 8 and moves the sliding member 7 upward. At this time, the rotor 11 of the cutting device 3 also moves upward in conjunction with this and moves away 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 proceeds to a position where the state shown in FIG. Move to. At this time, the rotor 11 of the cutting device 3 also moves downward in conjunction with this and comes into contact with the road surface, so the road surface is cut by the rotor 11. Thereafter, the above operation is repeated as the self-propelled vehicle 1 travels, whereby cutting grooves having a predetermined interval are formed on the road surface (see FIG. 6B). The locus of the rotor 11 at this time is as shown in FIG.
[0009]
FIG. 3 is a front view according to the second embodiment of the present invention. The guide wheel 4 is rotatably supported by the lower end part of the cylindrical member 6 via the wheel bearing member 10 '. A sliding member 7 is inserted inside the cylindrical member 6 disposed above the guide wheel 4, and slides up and down on the inner side of the cylindrical member 6 in conjunction with the rotation of the guide wheel 4. ing. The guide wheel 4 and the sliding member 7 are connected by a connecting rod 12, the lower end portion of the connecting rod 12 is engaged at a position shifted from the center of the guide wheel 4, and the upper end portion of the connecting rod 12 is the sliding member 7. Is engaged with a height adjusting screw 13 provided in the inside of the. The height adjusting screw 13 is configured to slide up and down integrally with the sliding member 7. A hydraulic motor 14 is disposed above the height adjustment screw 13, and the height adjustment screw 13 is rotated by the hydraulic motor 14 to finely adjust the relative height between the guide wheel 4 and the cutting device 3. be able to. The upper end portion of the sliding member 7 is connected to the vehicle body 2 of the self-propelled vehicle 1 through the connecting member 9, and the cutting disposed on the right side of the rear portion of the vehicle body 2 as the sliding member 7 slides up and down. The apparatus 3 is configured to move up and down in conjunction with each other.
[0010]
Next, the operation will be described. In FIG. 4, the arrow a is the traveling direction of the self-propelled vehicle 1. When the self-propelled vehicle 1 travels in the direction of arrow A, the guide wheel 4 rotates in the direction of arrow B. When the self-propelled vehicle 1 is in the position of FIG. 4A, the lower end portion of the connecting rod 12 is at the top dead center position shifted upward from the center of the guide wheel 4. At this time, since the rotor 11 of the cutting device 3 is located away from the road surface, the road surface is not cut. When the self-propelled vehicle 1 travels in the direction of arrow A and proceeds to the position of FIG. 4C through the position of FIG. It moves to the position of the dead point, and the sliding member 7 is moved downward. At this time, the rotor 11 of the cutting device 3 also moves downward in conjunction with this and comes into contact with the road surface, so the road surface is cut by the rotor 11. When the self-propelled vehicle 1 further travels in the direction of the arrow A and proceeds to the position where the state shown in FIG. 4A is reached again through the position shown in FIG. Because it moves, the road surface is not cut. Thereafter, the above operation is repeated as the self-propelled vehicle 1 travels, whereby cutting grooves having a predetermined interval are formed on the road surface.
[0011]
FIG. 5 is a side view according to the third embodiment of the present invention. The guide wheel 4 is rotatably supported by a support member 15 and is fixed to the vehicle body 2 of the self-propelled vehicle 1 via the support member 15. In the present embodiment, the shape of the guide wheel 4 is a substantially regular square. However, the shape is not limited to this, and any shape can be applied as long as it is a substantially regular polygon. The cutting device 3 can move up and down in conjunction with the vehicle body 2.
[0012]
Next, the operation will be described. In FIG. 5, the arrow a is the traveling direction of the self-propelled vehicle 1. When the self-propelled vehicle 1 travels in the direction of arrow A, the guide wheel 4 rotates in the direction of arrow B. 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 proceeds to the position of FIG. 5B, the apex portion of the guide wheel 4 comes into contact with the road surface and moves the support member 15 upward. At this time, the rotor 11 of the cutting device 3 also moves upward in conjunction with this and moves away 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 proceeds to the position shown in FIG. 5C, the side portion of the guide wheel 4 comes into contact with the road surface again and the support member 15 moves downward. At this time, the rotor 11 of the cutting device 3 also moves downward in conjunction with this and comes into contact with the road surface, so the road surface is cut by the rotor 11. Thereafter, the above operation is repeated as the self-propelled vehicle 1 travels, whereby cutting grooves having a predetermined interval are formed on the road surface.
[0013]
【The invention's effect】
According to the road surface cutting machine of the present invention, it is possible to provide cutting grooves with a predetermined interval on the road surface easily and accurately as compared with the conventional method. In particular, by providing continuous cutting grooves on the shoulder or center of the roadway, when the traveling vehicle is about to deviate from the main road due to snoozing driving, the tires of the traveling vehicle have passed through the cutting groove. A so-called alerting structure in which sounds and vibrations that are sometimes generated alerts the driver of the vehicle.
[0014]
Many conventional warning structures of this type are provided with a convex part, but in areas where snow is removed from the roadway in winter, such as in snowy and cold areas, the convex part may be peeled off the road surface due to snow removal. is there. 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 the 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 illustrating a second embodiment of the present invention.
FIG. 5 is a side view illustrating a third embodiment of the present invention.
FIG. 6 is a schematic view showing a locus of a rotor and a shape of a groove when forming a cutting groove in the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Self-propelled vehicle 2 Car body 3 Cutting device 4 Guide wheel 5 Plate member 6 Cylindrical member 7 Sliding member 8 Member receiving wheel 9 Connecting member 11 Rotor

Claims (5)

In a road surface cutting machine provided with 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 . Road surface cutting machine for forming cutting grooves .   A cylindrical member that is disposed above the guide wheel and is engaged with the guide wheel so that the lower end of the road cutting machine is rotatable via an axle bearing member; A sliding member that is inserted into the cylinder of the member and is connected to the vehicle body of the self-propelled vehicle via 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 sliding movement of the sliding member.   The conversion member includes a plate-like member that is provided on a side portion of the guide wheel and has a substantially regular polygon shape, and a member receiving wheel that is rotatably engaged with a lower end portion of the sliding member. The road surface cutting machine according to claim 2.   3. The conversion member according to claim 2, wherein the conversion member includes a connecting rod having a lower end engaged at a position shifted from a center of the guide wheel side portion and an upper end engaged with the sliding member. Road cutting machine.   The road surface cutting machine is disposed above the guide wheel with a substantially regular polygonal shape, and its lower end is engaged with the guide wheel so that the guide wheel can rotate. The road surface cutting machine according to claim 1, wherein the portion includes a support member fixed to a vehicle body of the self-propelled vehicle.

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