JP2902363B2 - Road surface paint removal device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for removing a display paint fixed on a road surface in order to make a predetermined display on the road surface.

[0002]

2. Description of the Related Art On road surfaces such as roads and sidewalks, lines representing road shoulders, lanes, center lines, pedestrian crossings, etc., characters and symbols representing traffic signs, etc. are formed in a predetermined shape using road surface display paint. It is drawn in. Such road surface display paints fixed on the road surface may be deleted from the road surface for the purpose of changing the use area of the road surface or re-applying. Therefore, various road surface display paint removal devices have been proposed. Have been. For example, this is described in Japanese Utility Model Publication No. 7-50082.

[0003] The above-described conventional road surface display paint removing apparatus includes a rotating disk rotating around an axis perpendicular to the road surface, and a rotating disk rotatable about an axis perpendicular to the vertical axis. And a cutter pin radially protruding from the outer peripheral portion and contacting the road surface.The cutting pin of the rotary cutter collides with the road surface display paint fixed on the road surface and breaks it finely. And then remove it.

[0004]

The road marking paint contains, as specified in, for example, JIS K 5665, an aggregate, a pigment, and a resin as main components, and is applied to a road in a fluidized state dissolved by heating. It is fixed to the road surface by being cured after being applied with a predetermined thickness. For this reason, especially when the road surface temperature is high, such as in summer, when the road surface display paint is sticky, even if the cutting pin of the rotary cutter is inserted, the impact hardly causes cracking or peeling from the road surface. Therefore, the conventional road surface display paint removing device has a disadvantage that the efficiency of the work of removing the road surface display paint fixed on the road surface is significantly reduced.

The present invention has been made in view of the above circumstances, and an object of the present invention is to remove road marking paint with high efficiency even when the road marking paint is sticky. It is to provide a road surface display paint removing device.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, the gist of the present invention is to provide a road surface for removing a display paint fixed at a predetermined thickness on the road surface while moving on the road surface. A display paint removing device, (a) a rotating body that is driven to rotate around an axis perpendicular to the road surface,
(b) a plurality of radially projecting protruding pins are provided on the outer peripheral portion, and a surface perpendicular to the vertical axis at the outer peripheral portion of the rotating body so that the tip of the protruding pin substantially abuts the road surface. A rotating cutter rotatably supported around an axis located therein, and (c) a cutting member protruding toward the road surface, wherein the rotating body is arranged such that a tip end of the cutting member substantially abuts the road surface. And a fixed cutter fixed to an outer peripheral portion of the fixed cutter.

[0007]

According to this structure, a plurality of projecting pins projecting radially are provided on the outer peripheral portion, and the vertical axis is formed on the outer peripheral portion of the rotating body so that the tip of the projecting pin substantially contacts the road surface. A rotary cutter rotatably supported around an axis positioned in a plane perpendicular to the surface, and a cutting member protruding toward the road surface, such that the tip end of the cutting member substantially abuts the road surface, Since the fixed cutter fixed to the outer peripheral portion of the rotating body is provided, even if the road surface display paint is sticky, the protruding pins protruding from the rotary cutter push the road surface display paint fixed to the road surface. Holes and cracks are formed in the road marking paint at a predetermined density by being put in, and the road marking paint having such holes and cracks is scratched by the cutting member of the fixed cutter. Ri is the pavement marking paint which is fixed to the road surface is efficiently removed.

[0008]

Preferably, the rotary cutter and the fixed cutter are provided alternately in a circumferential direction on an outer peripheral portion of the rotating body. If you do this,
During the movement of the road marking paint removal device, immediately after holes or cracks are formed in the road marking paint at a predetermined density by the rotating cutter, that part is scratched by the fixed cutter, so that the road marking paint is completely removed without remaining There are advantages.

Preferably, the rotating cutter and the fixed cutter have a rotating diameter of the projecting pin of the rotating cutter on the road surface equal to or greater than a rotating diameter of the cutting member of the fixed cutter on the road surface. And provided on the rotating body. In this way, during the movement of the road surface display paint removing device, the fixed cutter does not scratch the road surface display paint adhered to the road surface first, and the rotating cutter always ensures that the road surface display paint has a predetermined density of holes and cracks. After the part is formed, it is scratched by the fixed cutter,
The efficiency of removing the road marking paint is further enhanced.

[0010] Preferably, the cutting member of the solid cutter is constituted by a plurality of hardened steel or cemented carbide pins which are erected at predetermined intervals. In this way, the road surface display paint fixed on the road surface is efficiently removed by scratching the plurality of hardened steel or cemented carbide pins.

Preferably, the plurality of protruding pins radially protruding from the outer peripheral portion of the rotary cutter are provided at regular intervals in a circumferential direction with two pins spaced at a predetermined interval in the direction of the rotation axis. It was done.

[0012] Preferably, the cutting member of the fixed cutter has a tip on the road surface when two protruding pins adjacent in the circumferential direction among the protruding pins of the rotary cutter simultaneously reach the road surface. It has a length to reach.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a diagram illustrating a configuration of a road surface display paint removing device 10 to which the present invention is applied.

In FIG. 1, a road surface paint removing device 10 is shown.
Is provided with a pair of front wheels or steering wheels 12 and a pair of rear wheels or driving wheels 14,
The vehicle body 16 is supported by the vehicle 4 horizontally, that is, parallel to the road surface 34. The steering angle of the steering wheel 12 is changed according to the turning operation of the steering wheel 18. The drive wheels 14 are rotationally driven by the output of an engine 24 transmitted through a transmission 22 whose rotation direction or transmission ratio is selected by a transmission lever 20. Therefore, the vehicle body 16 can be moved forward or backward according to the operation of the shift lever 20 by the driver sitting on the seat 25.

The lower part of the center of the vehicle body 16 is covered with a circular cutter cover 28 and a seal rubber 30.
The cutter device 3 driven to rotate by the engine 24
2 is provided, and is moved to a position separated from the road surface 34 and a position to be brought into contact with the road surface 34 with a predetermined pressing force by operating a tilt lever 26 provided on the vehicle body 16. . Further, by operating the pressing force adjusting handle 27, the pressing force of the cutter device 32, which is moved to the position in contact with the road surface 34, against the road surface 34 is adjusted. The cutter device 32
Is for removing the road surface display paint 36 fixed on the road surface 34, and is configured as shown in FIG. 2, FIG. 3, and FIG.

In FIG. 2, a drive shaft 38 connected to the engine 24 via a power transmission mechanism (not shown)
6 is rotated in one direction around a rotation axis A perpendicular to the lower surface or the road surface 34, and a flange 40 for fixing the cutter device 32 is fixed to a lower end thereof. . A disk-shaped rotating body 42 of the cutter device 32 is fastened to the flange 40 by four bolts 46 via a stopper rotor plate 44. Therefore, the rotating body 42 is driven to rotate about an axis A perpendicular to the road surface 34.

The rotating body 42 fixed to the flange 40
A plurality of projecting pins 50 projecting radially
Is provided on the outer peripheral portion, and an axis centered in a plane perpendicular to the rotation axis A perpendicular to the road surface 34 so that the tip of the protruding pin 50 substantially abuts on the road surface 34. It has a pair of rotary cutters 52 rotatably supported around a rotation axis B orthogonal to the rotation axis A, and a cutting member 54 protruding toward the road surface 34, and a tip end of the cutting member 54 is substantially on the road surface 34. A pair of fixed cutters 56 fixed so as to be in contact with each other are provided.

The plurality of protruding pins 50 are made of a material having high wear resistance, such as hardened steel or cemented carbide, and have a diameter of about 6 to 7 mm. A pair of projecting pins 50 adjacent to each other at predetermined intervals in the direction are provided at nine positions at equal intervals in the circumferential direction, so that a total of 18 projecting pins are provided for one rotary cutter 52. The cutting member 54 includes three parallel pins having a diameter of about 6 to 7 mm and made of a material having high wear resistance, such as hardened steel or cemented carbide. , And are arranged in a circle.

When the two protruding pins 50 adjacent to each other in the circumferential direction of the rotary cutter 52 come into contact with the road surface 34 at the same time, the cutting member 54 of the fixed cutter 56 , In other words, as shown in FIG.
The rotating member 42 is provided such that the cutting member 54 of the fixed cutter 56 is separated from the road surface 34 by a predetermined distance E when the projecting pin 50 perpendicular to the second road surface 34 contacts the road surface 34.

The rotary cutter 52 and the fixed cutter 56 are provided alternately in the circumferential direction on the outer peripheral portion of the rotating body 42 as shown in FIG. The rotary member 42 is provided so that the rotational diameter D ₁ of the cutting member 54 on the road surface 34 of the cutting member 54 located on the outer peripheral side of the fixed cutter 56 is substantially equal to or greater than the rotational diameter D _{2 of} the cutting member 54. ing.

FIG. 4 is a view showing a cross-section passing through the rotation axis B in FIG. 3 to the rotation axis A and passing through the center of the bolt 46, and shows a mounting structure of the rotating body 42. In FIG. 4, the rotating body 42 is fixed to the flange 40 while being sandwiched by a pair of cylindrical rubber bushings 60 inserted through bolts 46.
Thus, since the rotating body 42 is elastically supported by the flange 40, even if the road surface 34 is inclined with respect to the vehicle body 16, the rotating body 42 is driven to rotate in a state in which the rotating body 42 is parallel to the road surface 34. . The rotary cutter 52
Is rotatably supported around the rotation axis B by screwing a bolt 58 penetrating the center thereof to the side surface of the rotating body 42.

According to the road surface display paint removing device 10 constructed as described above, when the shift lever 20 is operated forward while the engine 24 is operated, the vehicle body 16 is moved forward and at the same time the cutter device is moved. 32 is driven to rotate. At this time, when the tilt lever 26 is operated to lower the cutter device 32 to a position where the cutter device 32 comes into contact with the fixed road surface display paint 36 on the road surface 34, the road surface display paint 3
In No. 6, holes and cracks were sequentially formed at a predetermined density by the rotary cutter 52 and the holes and cracks were formed by the fixed cutter 56 even if the road surface 34 was sticky due to the high temperature. Since the portions are sequentially scratched, they are efficiently removed from the road surface 34.

As described above, according to the present embodiment, a plurality of projecting pins 50 projecting radially are provided on the outer peripheral portion, and the rotating body 42 is formed so that the tips of the projecting pins 50 substantially contact the road surface 34. A rotary cutter 52 rotatably supported around an axis B located in a plane perpendicular to an axis A perpendicular to the road surface 34 at an outer peripheral portion, and a cutting member 54 protruding toward the road surface 34; Since the fixed cutter 56 fixed to the outer peripheral portion of the rotating body 42 is provided so that the tip end of the cutting member 54 substantially abuts on the road surface, even if the road surface display paint 36 is sticky, The projecting pin 50 projecting from the rotary cutter 52 is used to
The holes and cracks are formed at a predetermined density in the road surface display paint 36 by being pierced into the road surface display paint 36 fixed to the fixed surface 56. The road surface display paint 36 fixed to the road surface 34 is efficiently removed by being scraped off from the road surface 34 by being scratched by the cutting member 54.

Incidentally, when the road surface display paint 36 fixed to the road surface 34 is to be deleted using only the fixed cutter 56, the more the road surface display paint 36 becomes more sticky, the more the fixed cutter 56 becomes. The surface layer 36 is scratched while sliding, and the lower layer portion of the road surface display layer 36 remains adhered to the road surface 34, and the road surface layer paint 36 is not suitably removed. In addition, Japanese Patent Publication No. 56-3140
As described in Japanese Unexamined Patent Application Publication No. 2 (1993) -205, a rotary cutter 5 rotatably supported around a parallel rotation axis at a predetermined distance from a rotation axis B in a plane perpendicular to the rotation axis A.
When the road surface display paint 36 fixed to the road surface 34 is to be removed by using the rotary cutter 2, the protrusion pins 50 are used as compared with the case where the rotary cutter 52 rotatably supported around the rotation axis B is used. Is slightly slid on the road surface 34, the effect of removing the sticky road surface display paint 36 is increased to some extent. However, the road surface display paint 36 is not sufficiently removed, and the delete effect is extremely insufficient. It is.

Also, according to the present embodiment, the rotary cutter 52
Since the fixed cutter 56 and the fixed cutter 56 are provided alternately in the circumferential direction on the outer peripheral portion of the rotating body 42, during the movement of the road surface display paint removing device 10, holes or cracks are formed in the road surface display paint 36 by the rotary cutter 52. Immediately after being formed at the density, the portion is scratched by the fixed cutter 56, so that there is an advantage that the road surface display paint 36 is completely removed without remaining.

Further, according to the present embodiment, the rotary cutter 52
The fixed cutter 56 has a rotation diameter D ₁ of the protruding pin 50 of the rotating cutter 52 on the road surface 34.
Is provided on the rotating body 42 so as to be equal to or larger than the rotation diameter D ₂ of the cutting member 54 on the road surface 34. In this way, the fixed cutter 56 does not first scratch the road surface display paint 36 fixed to the road surface 34 during the movement of the road surface paint removal device 10, and the rotary cutter 5
After the holes and cracks are formed at a predetermined density in the road surface display paint 36 by 2, the portions are scratched by the fixed cutter 56, so that the efficiency of removing the road surface display paint 36 is further enhanced. Incidentally, when the rotation diameter D _{1 of the} protruding pin 50 on the road surface 34 is smaller than the rotation diameter D _{2 of the} cutting member 54 on the road surface 34, the fixing cutter 56 fixes the road surface display paint 36 fixed to the road surface 34. In this case, only the surface layer of the road surface display paint 36 is scratched and the lower layer remains in a fixed state.
The function of No. 6 cannot be obtained sufficiently.

According to the present embodiment, the solid cutter 56
The cutting member 54 is composed of a plurality of pins, that is, three hardened steel or cemented carbide pins, which are erected at predetermined intervals. Alternatively, the road surface display paint 36 fixed on the road surface 34 is efficiently removed by scratching at the three points of the tip of the cemented carbide pin as compared with the case where it is composed of one member.

Also, according to the present embodiment, the fixed cutter 56
The cutting member 54 has a length such that the tip reaches the road surface when two circumferentially adjacent protruding pins of the protruding pins 50 of the rotary cutter 52 reach the road surface. From the cutting member 54 and the protruding pin 50
However, there is an advantage that wear is substantially uniform.

Although the embodiment of the present invention has been described with reference to the drawings, the present invention can be applied to other embodiments.

For example, the rotary cutter 52 of the above-described embodiment is used.
Is supported by the rotating body 42 so as to be rotatable around the rotation axis B, but rotates about a parallel rotation axis at a predetermined distance from the rotation axis B in a plane perpendicular to the rotation axis A. It may be supported as much as possible. If you do this,
Since the projecting pin 50 of the rotary cutter 52 slightly slides on the road surface 34, a certain degree of scratching effect is generated on the rotary cutter 52 itself.
Is obtained.

Further, the cutting member 54 of the above-described embodiment is constituted by three hardened steel or cemented carbide pins which are erected at predetermined intervals. It may be a book or four or more pins, or may be a single wear-resistant material shaped like a cutting tool.

The rotary cutter 52 and the fixed cutter 56 in the above-described embodiment are provided on the rotating body 42 two by two. However, one or three rotary cutters may be provided on the rotary body 42, or the rotary cutter 52 may be provided. The same number of 52 and fixed cutters 56 need not be provided.

Although the road surface display paint removing apparatus of the above-described embodiment is of a self-propelled type, it may be of a hand-operated type.

In addition, the present invention can be variously modified without departing from the gist thereof.

[Brief description of the drawings]

FIG. 1 is a diagram showing an appearance of a road surface display paint removing apparatus according to an embodiment of the present invention.

FIG. 2 is a front view of the cutter device of the embodiment shown in FIG. 1;

FIG. 3 is a diagram showing a bottom surface of the cutter device of the embodiment of FIG. 1;

FIG. 4 is a view showing a cross section of the cutter device of FIG. 3;

[Description of sign]

 10: Road surface display paint removing device 32: Cutter device 34: Road surface 36: Road surface display paint 42: Rotating body 50: Projection pin 52: Rotating cutter 54: Cutting member 56: Fixed cutter

Claims (3)

(57) [Claims] 1. A road surface display paint removing device for removing a display paint fixed at a predetermined thickness on a road surface while moving on the road surface, wherein the device removes a display paint fixed on the road surface, the device being rotated about an axis perpendicular to the road surface. A rotating body to be driven, and a plurality of radially projecting protruding pins provided on an outer peripheral portion, such that a tip of the protruding pin substantially abuts the road surface with respect to the vertical axis at an outer peripheral portion of the rotating body. A rotating cutter rotatably supported around an axis located in a plane perpendicular to the road surface, and a cutting member protruding toward the road surface, such that a tip end of the cutting member substantially abuts the road surface, A road surface paint removing device, comprising: a fixed cutter fixed to an outer peripheral portion of a rotating body. 2. The road surface display paint removing device according to claim 1, wherein the rotating cutter and the fixed cutter are provided alternately in a circumferential direction on an outer peripheral portion of the rotating body. 3. The rotating cutter and the fixed cutter, wherein the rotation diameter of the protruding pin of the rotating cutter is equal to or greater than the rotation diameter of the cutting member of the fixed cutter on the road surface. The road surface display paint removing device according to claim 1, which is provided on a body.