JPH11151676A - Ceramic brush for polishing surface of concrete - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a brush for removing the deposit on a concrete surface which suppresses scattering of constituent parts, reduces the wear of the constituent parts, and suppresses operation cost. SOLUTION: This ceramic brush has a cylindrical drum 32, a plurality of elastic blades 36 which are provided and protrude on a surface of the drum 32 through a mounted part 34 provided around the cylindrical drum 32, and a ceramic for polishing 38 fixed on surfaces of respective elastic blades 36. The cylindrical drum 32 is attached to a rotary shaft of a drive motor. Respective elastic blades 36 are embedded in the mounted part 34 along a generating line on a cylindrical surface of the mounted part 34, are extended radially when viewed from an end face of the cylindrical drum 32, and have a recessed part on a projecting surface in the direction of rotation of the drive motor. The ceramic for polishing 38 is fixed in the recessed part so as to protrude from the projecting surface slightly.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a ceramic brush for polishing a surface of concrete or the like. More specifically, the present invention relates to concrete or asphalt (hereinafter, referred to as
"Concrete etc." ) To remove the skid marks adhered to the surface, remove road signs such as white lines baked on the surface of concrete, etc. The present invention relates to a ceramic brush useful for roughening the surface of concrete that has already been solidified for joining.

[0002]

2. Description of the Related Art In an aircraft runway, when an aircraft lands, a rubber material sticks to the surface of a concrete or the like of a tire runway as a black stain. These black spots are called "skid marks" and gradually increase in thickness each time the aircraft repeats landings. If there is a skid mark stuck to the surface of concrete or the like on the runway, the skid mark deprives the tire of grip when the aircraft lands. An aircraft may lose its steering characteristics as if it had landed on an ice burn, and this could cause a serious aircraft accident. In particular, even when the aircraft decelerates after landing in rainy weather, the tires are likely to slip on the skid mark, and there is a risk of causing a serious accident due to runway runoff. Conventionally, in order to periodically remove the skid marks, a brush having a plurality of steel wires such as piano wires projecting from the surface of a rotating disk has been used. When the rotating disk is driven to rotate and pressed against the runway, the steel wire scrapes off skid marks sticking to the surface of concrete or the like.

[0003]

However, since the above brush uses a steel wire, the steel wire may be broken from the base of the rotating disk and scattered on the runway. Further, the steel wire may be broken in the middle and scattered on the runway as a short wire. In such a state, when the aircraft takes off and land on the runway, the scattered steel wire is sucked into the engine and causes a failure, and in the worst case, it may cause an aircraft accident.

Further, the conventional brush has a drawback that if the surface of concrete or the like is frequently polished, the brush is shortened due to abrasion, and replacement and maintenance are required, thereby increasing the maintenance cost.
Even in the other applications mentioned above, steel brushes suffer from severe wear, requiring frequent brushing and increased operating costs.

[0005] It is an object of the present invention to provide a brush in which the scattering of components during operation is suppressed. It is another object of the present invention to provide a brush with reduced wear and reduced operating costs.

[0006]

According to the present invention, there is firstly provided a cylindrical drum which can be driven to rotate, a plurality of rubber elastic blades protruding from a peripheral surface of the drum along a longitudinal direction, and The object has been achieved by a ceramic brush having a polishing ceramic fixed to the surface of an elastic blade. When the cylindrical drum is pressed against the surface of concrete or the like while rotating, the rubber elastic blade is elastically deformed following the surface of concrete or the like by its own elasticity. The polishing ceramic fixed on the surface of the elastic blade is pressed against the surface of concrete or the like with an appropriate pressing force by the elasticity of the elastic blade. Then, the skid marks attached to the surface of concrete or the like are scraped off by the polishing ceramic. As the polishing ceramic, for example, a high-hardness ceramic such as silicon nitride or carbon silicon is used. By using these polishing ceramics, the surface of concrete or the like is scraped off, and any skid marks are removed. Normally, silicon nitride or the like has high hardness, but has brittleness, but the elastic blade presses the polishing ceramic against the surface of concrete or the like with an appropriate pressing force, so that the polishing ceramic is damaged or chipped. Protected from damage.

It is preferable that the elastic blade has a convex shape in the rotation direction, and the polishing ceramic is fixed to the convex surface. When the cylindrical drum is rotated, the polishing ceramic fixed on the convex surface is easily pressed against the surface of concrete or the like, and the attached matter such as skid marks is efficiently removed.

Further, it is preferable that the elastic blades are separated in the generatrix direction of the cylindrical drum. When pressing a ceramic brush on a flat surface of concrete, etc., there is no problem by using a plate-shaped elastic blade extending in the generatrix direction. It is necessary to press the polishing ceramic. When the elastic blades are separated in the generatrix direction of the cylindrical drum, the polishing ceramic is pressed against the surface of concrete or the like with an independent pressing force. As a result, even if there is a deposit in the concave portion, the elastic blade bends due to its elasticity and the polishing ceramic removes the deposit.

The present invention secondly provides a disk-shaped flange that can be driven to rotate, a plurality of rubber elastic blades protruding radially from the surface of the flange, and a polishing fixed to the surface of the elastic blade. The above problem was solved by a ceramic brush having a ceramic for use. When the disk-shaped flange is pressed against the surface of concrete or the like while rotating, the rubber elastic blade elastically deforms following the surface of concrete or the like by its own elasticity. The polishing ceramic fixed on the surface of the elastic blade is pressed against the surface of concrete or the like with an appropriate pressing force by the elasticity of the elastic blade. Then, the skid marks attached to the surface of concrete or the like are scraped off by the polishing ceramic.

It is preferable that the elastic blade has a spiral shape in the rotating direction, and the polishing ceramic brush is fixed to a convex surface of the spiral elastic blade. Further, it is preferable that the elastic blades are spaced apart in a radial direction of the disc-shaped flange. These preferred embodiments are the same as the case where the ceramic brush is formed using the cylindrical drum as described above.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a ceramic brush according to the present invention will be described with reference to the drawings. 1 to 3 show a first embodiment of a ceramic brush according to the present invention. A ceramic brush for polishing a surface of concrete or the like is used, for example, mounted on a vehicle. The ceramic brush of the present embodiment is mounted on a vehicle for the purpose of removing deposits on the road surface. However, when the ceramic brush is used for another purpose, the peripheral structure is modified according to the purpose.

A ceramic brush support device 10 is provided in front of the vehicle V. The support device 10 includes a horizontal turning device 12 attached to a fitting J of the vehicle frame,
The vertical swing device 1 attached to the horizontal swing device 12
4 and a ceramic brush drive motor 16. The horizontal turning device 12 includes a horizontal turning frame 18 capable of turning horizontally with respect to the vehicle, and a hydraulic cylinder (not shown) mounted between the vehicle V and the horizontal turning frame 18. The hydraulic cylinder is operated by a vehicle driver. The vertical swinging device 14 is mounted on the horizontal turning frame 18 and is capable of swinging in a plane perpendicular to the road surface. The hydraulic cylinder 20 is mounted on the horizontal turning frame 18 at the center and is perpendicular to the road surface. It has a swing arm 24 that can swing in a plane, and a ceramic brush support arm 26 provided integrally with the swing arm 24. A rod 28 of the hydraulic cylinder 20 is rotatably attached at one end to the swing arm 24. The swing arm 24
Has a ceramic brush support arm 26 attached at the other end. The hydraulic cylinder 20 is operated by a vehicle driver. The ceramic brush 30 has both ends rotatably attached to the support arm 28.
The drive motor 16 is attached to the support arm 28. The rotation axis of the drive motor 16 is a ceramic brush 30
Attached to. The drive motor 16 is operated by a vehicle driver to start / stop, low-speed rotation, high-speed rotation, and the like. The above-described ceramic brush support device 10 turns the ceramic brush 30 in a predetermined direction with respect to the vehicle V, presses the ceramic brush 39 with an appropriate pressing force against the road surface, and places the ceramic brush 39 in a place where the driver should work. 30 for setting the usage environment.

The ceramic brush 30 is a cylindrical drum 3
2, a plurality of elastic blades 36 protruding from the surface of the cylindrical drum 32 via an adhered portion 34 provided around the cylindrical drum 32, and polishing fixed to the surface of each elastic blade 36 For use. The cylindrical drum 32 is attached to a rotation shaft of the drive motor 16. The elastic blade 36 has a rubber plate shape.
Each of the elastic blades 36 is embedded in the attached portion 34 along a generatrix on the cylindrical surface of the attached portion 34. However, the elastic blade 36 can be attached to the adherend 34 by other means.
May be provided. The elastic blade 36 extends radially when viewed from the end surface of the cylindrical drum 32 and is convex in the rotation direction of the drive motor 16. Elastic blade 36
Has a concave portion on the convex surface. This recess is open at the radial outer edge of the elastic blade 36. The polishing ceramic 38 is fixed to the concave portion so as to slightly protrude from the convex surface.

In order to remove the deposits on the road surface, for example, skid marks, the vehicle V is guided to the place where the skid marks are to be removed, and then the ceramic brush 30 is pressed against the road surface by the vertical swing device 14. . Then, the drive motor 16 is started to rotate the ceramic brush 30 at a predetermined rotation speed. The elastic blade 36 presses the convex surface against the road surface while being deformed by its elasticity. A polishing ceramic 38 is fixed to the convex surface, and the polishing ceramic 38 is applied with an appropriate pressing force of the elastic blade 36.
Scrapes off the attached matter, and the elastic blade 36 pushes the attached matter forward of the vehicle V by the restoring force. It should be noted that the horizontal turning device 12 is mainly used for pushing out the scraped deposits to the side of the vehicle, and is not always necessary.

In this embodiment, an elastic blade extending in the generatrix direction of the cylindrical drum is used. However, if the road surface has irregularities, the polishing ceramic does not enter the concave portions. Therefore, when the road surface has many irregularities, it is preferable to separate the elastic blades in the generatrix direction and to scatter a plurality of elastic blades in the circumferential direction and the generatrix direction of the cylindrical drum. By doing so, the elastic blades are deformed independently of each other in accordance with the unevenness of the road surface, and the deposits on the uneven road surface can be efficiently scraped off by the polishing ceramic.

FIGS. 4 and 5 show a second embodiment of the ceramic brush according to the present invention. The ceramic brush 50 of the present embodiment shows an example in which a polishing ceramic is provided on a disc-shaped flange 52. The ceramic brush 50 is
It is attached to the vehicle via a horizontal turning device (not shown), a lifting device (not shown), and a vertical swing device 54.
A drive motor 5 is attached to a swing arm 56 of the vertical swing device 54.
8 is attached, and a ceramic brush 50 is attached to a rotating shaft thereof.

The ceramic brush 50 includes a disk-shaped flange 52, a plurality of elastic blades 60 projecting from the surface of the disk-shaped flange 52, and respective elastic blades 60.
And a polishing ceramic fixed to the surface of the ceramic. The disc-shaped flange 52 is attached to a rotation shaft of a drive motor 58. The elastic blade 60 has a rubber plate shape.
Each elastic blade 60 is provided radially and spirally on the surface of the disk-shaped flange 52. The elastic blade 60 has a concave portion on the spiral convex surface. The recess is open at the lower edge and the side edge of the elastic blade 60. The polishing ceramic is fixed to the concave portion so as to slightly protrude from the convex surface.

In order to remove the adhesion portion of the road surface, for example, the skid mark, the vehicle is guided and driven to a place where the skid mark is present, and then the ceramic brush 50 is pressed against the road surface by the lifting device. Then, the drive motor 58 is activated to rotate the ceramic brush 50. The elastic blade 60 presses the polishing ceramic against the road surface with an appropriate pressing force while being deformed by its elasticity. By doing so, the polishing ceramic scrapes the skid marks. Then, the attached material from which the restoring force of the elastic blade 60 has been removed is flipped off.

In the case of this embodiment, as shown in FIG. 5, the maximum width W capable of removing the attached matter is the diameter of the ceramic brush 50, but by using the vertical swing device 54,
The width over which deposits can be removed can be changed. That is, the ceramic brush 50 using the vertical disturbance device 54 is used.
When the ceramic brush 50 is moved up and down by the elevating device after tilting the ceramic brush 50 at a certain angle, the elastic blade 60 of the ceramic brush 50 is deformed, and the width X of the elastic blade 60 contacting the road surface is changed. Since the width of the skid mark is not constant and the width of the road sign on the road surface is not constant, pressing the ceramic brush with a wide width against the road surface will damage the concrete surface that does not need to be removed. Therefore, in this embodiment, by changing the contact width of the ceramic brush, it is possible to remove the deposits only for the skid marks or road signs to be removed.

As in the first embodiment, the elastic blades may be separated from each other in the radial direction, and the elastic blades may be provided on the surface of the disk-shaped flange in a dotted manner. By doing this,
The elastic blade and the polishing ceramic can enter the concave portion on the uneven road surface, and the deposits on the concave portion can be removed.

[0021]

According to the first aspect of the present invention, the ceramic brush is
A cylindrical drum that can be driven to rotate, a plurality of rubber elastic blades protruding along the longitudinal direction on the peripheral surface of the drum,
A polishing ceramic fixed to the surface of the elastic blade, and the polishing ceramic fixed to the surface is pressed against the surface of concrete or the like with an appropriate pressing force by the elasticity of the elastic blade. Scraping off deposits on the surface of concrete etc. Therefore, when removing adhering substances such as skid marks and the like, even if some abrasion powder of the polishing ceramic is generated, no harmful foreign matter is scattered around. In addition, since the elastic blade controls the pressing force of the polishing ceramic within a certain range to prevent unnecessary wear, the economics of reducing damage and abrasion due to the use of a high-hardness polishing ceramic with less wear. In conjunction with this, the operating cost can be minimized.

According to the second aspect of the present invention, the polishing ceramic is fixed to the surface of the convex elastic blade in the rotation direction, so that the polishing ceramic easily comes into contact with the surface of concrete or the like, and is provided with a skid mark or the like. Kimono can be removed efficiently. And the elastic deformation of the elastic blade is reduced, and the restoring force of the elastic blade is also reduced accordingly, so that the scattering of the removed deposits is prevented,
It is easy to collect the deposits.

According to the third aspect of the present invention, if the elastic blade is separated in the generatrix direction of the cylindrical drum, the elastic blade and the polishing ceramic follow the surface of concrete or the like independently of each other. Even if there is a deposit on the surface of certain concrete etc., even if each elastic blade bends due to its elasticity and there is a deposit in the recess,
The deposit can be removed by the polishing ceramic.

According to a fourth aspect of the present invention, there is provided a ceramic brush which is rotatably driven, a plurality of rubber elastic blades protruding radially from the surface of the flange, and is fixed to the surface of the elastic blade. The polishing ceramic fixed to the surface by the elasticity of the elastic blade is pressed against the surface of concrete or the like with an appropriate pressing force to remove the deposits on the surface of concrete or the like. Scrape off. Therefore, when removing adhering substances such as skid marks, no harmful foreign substances are scattered around even if abrasion powder of the ceramic for polishing is small. In addition, since the elastic blade controls the pressing force of the polishing ceramic within a certain range to prevent unnecessary wear, the economics of reducing damage and abrasion due to the use of a high-hardness polishing ceramic with less wear. In conjunction with this, the operating cost can be minimized.

According to the fifth aspect of the present invention, since the polishing ceramic is fixed to the convex surface of the spiral elastic blade, when the elastic blade is pressed against the surface of concrete or the like, the polishing ceramic is applied to the surface of concrete or the like. It is easy to follow the contact, and it is possible to efficiently remove the attached matter such as the skid mark. And the elastic deformation of the elastic blade is reduced, and the restoring force of the elastic blade is also reduced accordingly, so that the scattering of the removed deposits is prevented,
It is easy to collect the deposits.

According to the sixth aspect of the present invention, if the elastic blade is spaced apart in the radial direction of the disk-shaped flange, the elastic blade and the polishing ceramic follow the surface of concrete or the like independently of each other. Even if there is a deposit on the surface of concrete or the like, even if each elastic blade is bent by its elasticity and there is a deposit in the recess,
The deposit can be removed by the polishing ceramic.

[Brief description of the drawings]

FIG. 1 is a side view of a vehicle equipped with a ceramic brush according to the present invention.

FIG. 2 is a perspective view of a ceramic brush and a support arm.

FIG. 3 is an enlarged perspective view of an elastic blade and a polishing ceramic in a ceramic brush.

FIG. 4 is a partial side view of a vehicle equipped with a ceramic brush according to another embodiment of the present invention.

FIG. 5 is a plan view of the ceramic brush of FIG. 4;

[Explanation of symbols]

V vehicle 10 support device 12 horizontal turning device 14
Vertical swing device 16 Drive motor 18 Horizontal turning frame 20 Hydraulic cylinder 24 Swing arm 26 Support arm 28 Rod 30 Ceramic brush 32 Cylindrical drum 34
Adhered part 36 Elastic blade 38 Polishing ceramic 50 Ceramic brush 52 Disc-shaped flange 54 Vertical swing device 56 Swing arm 58
Drive motor 60 elastic blade

Claims (6)

[Claims] 1. A cylindrical drum that can be driven to rotate, a plurality of rubber elastic blades protruding from a peripheral surface of the drum along a longitudinal direction, and a polishing ceramic fixed to a surface of the elastic blade. A ceramic brush, comprising: 2. The ceramic brush according to claim 1, wherein said elastic blade is convex in a rotational direction, and said polishing ceramic is fixed to said convex surface. 3. The ceramic brush according to claim 1, wherein the elastic blades are separated in a generatrix direction of the cylindrical drum. 4. A disk-shaped flange that can be driven to rotate, a plurality of rubber elastic blades protruding radially from the surface of the flange, and a polishing ceramic fixed to the surface of the elastic blade. A ceramic brush. 5. The ceramic brush according to claim 4, wherein said elastic blade is spiral in a rotational direction, and said polishing ceramic brush is fixed to a convex surface of said spiral elastic blade. 6. The ceramic brush according to claim 5, wherein the elastic blades are spaced apart in a radial direction of the disc-shaped flange.