JP2001131909A - Device for rubbing granular material into recessed portion of paved surface - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device for efficiently and densely rubbing and filling granular material into whole recessed portions of a paved surface. SOLUTION: A plurality of rubbing vane members 2 formed in an internally bent shape in the rotating direction, as means of rubbing granular material into recessed portions of a paved surface, are mounted on the bottom face of a disc 1 rotated by a rotation driving mechanism 3 for rubbing rubbed material while whirling under the disc.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus suitable for an operation of sliding a granular material into a concave portion of a pavement surface.

[0002]

2. Description of the Related Art As a pavement on a road, a sidewalk, a sports facility, or the like, a material obtained by mixing a particulate matter with a binder and spreading or spraying the same, as represented by asphalt pavement, asphalt concrete pavement or elastic pavement. Is commonly used. In such a pavement, if a concave portion remains on the pavement surface, it is necessary to fill the concave portion with a granular material immediately after construction to flatten the concave portion. Also, for example, in the case of a permeable asphalt concrete pavement, in order to reduce noise or reduce consumption due to penetration of a snow melting agent, particle voids (recesses) constituting the pavement surface are used.
It is necessary to densely fill granular materials. Further, in the case of the elastic pavement, fine-grained rubber chips are sometimes filled in the particle voids on the elastic pavement surface in order to crush the surface.

In such a case, it is necessary to increase the density by rubbing in, since the material can be easily removed by simply filling the concave portion of the pavement surface with the material. Conventionally, as a method, a sliding material is sprayed on a pavement surface immediately after spreading or spraying, and is rubbed with a plastering iron or a hot iron. However, since this method is a manual operation, a large burden is applied to the waist, which causes fatigue, and requires time and labor, and is inefficient. For this reason, the area which can be constructed is limited, and a great cost is required. It is desired that the rubbing work be completed before the binders constituting the pavement surface are hardened, but it is difficult to follow the spraying speed and the laying speed to form the pavement surface because of inefficiency, and the After curing, the date must be changed again using another material and binder, resulting in a heterogeneous appearance on the completed construction surface, and the rubbed material peeling off in a short period of time. It was also causing problems.

[0004] As a countermeasure, the present inventor tried to hang a screed vertically in front of or behind a traveling cart and spread the sliding material with the screed to fill the recess. However, in this method, since there is a wave on the pavement surface, the lower end of the skid is flat, so that the material is not reliably slid into the concave portion, but is merely filled in a rough and floating shape, There is a problem in that the material is easily peeled off, and further, the sliding material is filled in a forward region of the concave portion in the traveling bogie traveling direction, but a gap is generated in the region opposite to the traveling direction because the material is not filled. there were.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems. It is an object of the present invention to efficiently apply a granular material to the entire concave portion of a pavement surface. Another object of the present invention is to provide a device which can be rubbed and filled densely.

[0006]

In order to achieve the above object, the present invention provides a means for rubbing a granular material into a concave portion of a pavement surface. It is characterized in that a plurality of rubbing blade members that are curved inward in the direction are attached. The rubbing blade member has a predetermined rubbing angle in the rotational direction with respect to the pavement surface, and has a degree of curvature in which the outer end located at a portion near the periphery of the disc does not allow the material to escape in the radial direction and has a degree of curvature. It is configured relatively stronger than the other parts. The rubbing angle α is usually set from a range of 45 ° or less.

[0007] In addition to the case where the rubbing blade member is fixed to the disk, the case where the blade member is detachably attached is included. The device of the present invention includes a case where a plurality of disks with rubbing blade members are arranged in the traveling device and automatically moved, in addition to a case where the device is moved manually.

The present invention is applicable to any case where the granular material is rubbed into the recess immediately after the pavement surface is constructed. Also,
In addition, the present invention is also applied to a repair work for flattening when a granular material constituting a pavement surface is partially peeled off and a concave portion has been formed over a period of time from the time of construction. In the present invention, the “recess” includes not only dents and holes formed on the construction surface but also voids between relatively coarse particles constituting the pavement surface. The pavement surface according to the present invention is a track for sports, a tennis court, a multi-purpose open space, a promenade, a sidewalk, a passage, a jogging course, a playground in a park, the outside of a welfare facility for the elderly and disabled, a hospital, etc., a poolside, a veranda, a rooftop. It can be applied to all types of pavement, such as elastic pavement, inelastic pavement, permeable pavement, and non-permeable pavement. In the present invention, the “slid-in material” is not limited to an elastic material such as a rubber chip as long as it is a granular material.
Includes particulates such as pebbles and metal powder. The size of the granular material is not limited, and includes all of fine particles of 0.1 mm or less to relatively large particles of more than 1 mm or a mixture of such fine particles.

[0009]

Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 and 2 show a first embodiment of a device for rubbing granular material into a pavement recess according to the invention.
Reference numeral 1 denotes a disk, which is made of a desired hard material such as metal, wood, and hard synthetic resin. This disc 1 has a central hole 10
The output portion 30 of the rotary drive mechanism 3 including, for example, a motor with a speed reducer is provided with the central hole 10.
And the torque is transmitted. Known bayonet protrusions 100 are provided at equal intervals inside the central hole 10, and are engaged with and integrated with the bayonet protrusions 300 provided on the periphery of the output unit 30. , And receives the transmission of rotational force. The rotary drive mechanism 3 is mounted on a casing 4. In this example, a handle 4a for movement is provided upright on one side of the casing, and a caster 4b that can move up and down is provided near the handle. Casing 4 is disk 1
Has a cover 40 that covers the upper part of.

Reference numeral 2 denotes a plurality (three in this example) of rubbing blade members attached to the lower surface of the disk 1, that is, the surface facing the pavement surface A. It is located at equal intervals on the circumference and has a shape of a trailing blade that curves inward in the traveling direction. In this example, the base end portion (the innermost portion in the radial direction) 20 of each rubbing blade member 2 is located in the vicinity of the center hole 10 and gradually bends in the rotational direction from this position in the radial direction. And the radially outer outer end 21 terminates at or near the outer edge of the disc 1. In this example, the outer end 21
In the rotational direction, the base end 20 of the next rubbing blade member 2 is located at substantially the same position on the circumference.

Outer end 21 of each of the rubbing blade members 2
Has a high degree of bending so that the sliding material w can be wound into the area of the disk 1 without escaping radially outward. For example, the angle θ formed by the tangent line TL to the circumference is 90 degrees or more. The proximal end 20 is preferably at an angle of about 90 degrees to radiation passing through the center of the central hole 10 so that the material can be pushed into the center. The curvature of the intermediate region 22 from the base end portion 20 to the outer end portion 21 may be the same curvature, but preferably, the curvature is gentler toward the base end portion 20, and is tighter toward the outer end portion 21. To be. That is, it is a parabola or a similar shape.
If the intermediate region 22 is made in this manner, the rubbed material w can be appropriately extruded radially outward in a region close to the base end portion 20, and the rubbed material w becomes closer to the outer end portion 21.
In the radial direction can be weakened and tend to be entangled within the disk area.

Each of the rubbing blade members 2 is shown in FIG.
(A) As shown in (b) and (c), the contact surface 200 with the pavement surface level GL has a predetermined sliding angle α with respect to the traveling direction.
It is necessary to have The reason is that when the rubbing angle α is large, it is easy to move the rubbed material w on the pavement surface and fill the concave portion a, but it is necessary to make the rubbed material w put in the concave portion dense. This is because the rolling pressure becomes weak. The smaller the sliding angle α is, the higher the rolling pressure is, so that the recessed material a can be reliably filled with the sliding material w and pressed strongly. However, if the sliding angle α is too small, the filling efficiency of the sliding material w into the concave portion decreases, and the material is pressed and crushed before entering the concave portion a. The sliding angle α is usually 5 to 45 °, and may be appropriately selected depending on the area and depth of the concave portion. The bottom surface of each rubbing blade member 2, that is, the contact surface 200 with the pavement surface, preferably has a contact area as large as possible from the viewpoint of ensuring abrasion resistance. The shape may be a straight line as shown in FIG. 4 (c), but is preferably an arc as shown in FIGS. 4 (a) and 4 (b). It is possible to prevent unnecessary scratching of the pavement surface A and to prevent the pavement layer constituent material from peeling, and to adjust the sliding angle α by adjusting the curvature without adjusting the angle. That's why. FIG. 4B shows an example in which the curvature R is made larger and smoother than in FIG. 4A and the sliding angle α is made smaller. The contact surface 200
Other cross-sections may be linear.

The material of the rubbing blade member 2 is a pavement surface A
Considering the case of concrete, asphalt concrete, etc., those with low wear are preferable.Examples of such a material include a steel layer in which a hard nitride or a hard carbide is formed on a surface layer, and a hard film coated on a steel material. Stuff, cemented carbide,
Ceramic or the like can be used. Further, a material having excellent wear resistance, such as a synthetic resin material represented by hard urethane, monomer cast nylon, high-strength polyester, or ultrahigh molecular weight polyethylene, may be selected and used. Synthetic resin-based ones have the advantages of being lightweight and of being easy to process in cross-section and bend inward. As long as it has such abrasion resistance, the form of the rubbing blade member 2 may be a rod or a plate.

The rubbing blade member 2 may be fixed to the disk 1 by fixing means 5 such as welding as shown in FIG. 5A. Alternatively, the plate 6 may be fixed to the back of the sliding blade member 2 as shown in (b), and the plate 6 may be fixed to the disk 1 by screws or the like. FIG.
And FIG. 3 show this example. Further, as shown in FIG. 5 (c), a holding member 6 'having a groove 60 on the bottom surface of the disk 1 is fixed by screws or the like, and the rubbing blade member 2 is fitted into the groove 60 of the holding member 6'. You may. In this case, the holding member 6 'does not necessarily have to be provided over the entire length of the rubbing blade member 2, and may support a plurality of locations. When the holding member 6 'is used in this manner, there is an advantage that replacement when the rubbing blade member 2 is worn becomes easy.

FIGS. 6 and 7 show a second embodiment of the present invention. This embodiment shows an example in which a plurality of granular material rubbing devices S are arranged in the traveling device 7 and the material rubbing device A automatically rubs the material into the concave portion a on a wide surface. . The granular material rubbing device A has a disk 1 rotated by the rotation drive mechanism 3 in the same manner as in the first embodiment, and a plurality of rubbing blade members 2 attached to the bottom surface of the disk 1. The rubbing blade member 2 has a trailing blade shape that is curved inward in the traveling direction. The detailed description of the configuration will use the first embodiment. The traveling device 7 has a frame 70, and has caterpillars 81 driven and rotated by a motor 80 on both sides of the frame 70. The granular material rubbing device S is positioned so that the rubbed surfaces overlap in the traveling direction inside the frame 70, and is suspended by the housing 4. This type of suspension is optional, and the frame 70
Alternatively, a vertically movable frame may be provided in the frame 70, and the housing 4 may be suspended from the frame by a chain or a pin. In these cases, it is also preferable that the granular material rubbing device S can be freely moved to the right or left or back and forth.

In this example, a screed plate 7 for roughing the material in the traveling direction of the frame 70 of the traveling device 7 is provided.
3 are equipped. The spraying vehicle 9 is located ahead of the traveling device 7 in the traveling direction. The spraying car 9 has a pump 90 for automatically measuring a binder such as urethane resin.
And an automixer 91 with a hopper for making a rubbed material w by combining a binder and granules. In the case where the rubbed material w is not sprayed freely but sprayed, a spray nozzle is connected to the hopper-mounted automixer 91 of the spraying car 9 and sprayed on the pavement surface in the traveling direction of the traveling device 7. May be attached. In this case, the screed plate 73 may be removed and rubbed immediately by each granular material rubbing device A without roughening.

The above description is merely some examples of the present invention, and the present invention is not limited to these examples. In the drawing, each of the granular material rubbing devices S has a rotary drive mechanism. However, the present invention is not limited to this, and a common rotary drive mechanism is used, and the driving force is transmitted to each disk by drive take-out means. You may make it. Further, the device of the present invention not only has a rotary drive mechanism, but also, for example, as shown in FIG.
The self-propelling mechanism may be provided so that the caster 4b can be driven by a driving mechanism so as to be able to run on its own. Alternatively, traction means may be used instead of the handle 4a.

[0018]

The operation of the granular material rubbing apparatus according to the present invention will be described. In the first embodiment, the operator operates the handle 4a while the rubbed material w is sprayed on the pavement surface A by an arbitrary method. Then, the disc 1 is positioned above the rubbing material w, and the casters 4b are lifted to bring the rubbing blade member 2 into contact with the rubbing material w. In this state, the rotation drive mechanism 3 is operated to move the disc 1 While rotating, the whole moves in the horizontal direction or the front-back direction. In this case, the rubbing blade member 2 is integrally rotated by the rotation of the disk 1, and the rubbed material w is automatically slid into the recess a of the pavement surface A by the rubbing blade member 2.

That is, since the rubbing blade member 2 comes into sliding contact with the pavement surface A, the rubbing material w is moved in the circumferential direction and is filled in the concave portion a, but the rubbing blade member 2 is moved in the traveling direction. The shape of the trailing blade is curved inward toward the outer edge, and the degree of curvature of the outer end portion 21 is particularly increased so as to draw a parabola. For this reason, even if the disc 1 rotates at a considerably high speed and a centrifugal force acts, the sliding material w is scattered in the radial direction from within the area of the disc 1 or the outward suction force acts on the recess a. Therefore, the recessed material w can be smoothly and reliably filled in the concave portion while being rolled into the area of the disc without being swept out of the concave portion. In addition, the rubbing blade member 2 has an inner curve, and a plurality of wing blade members 2 are provided at equal intervals and are rotated by 360 degrees, so that the recess can be filled from all directions.

Further, the rubbing blade member 2 has a pavement surface A
Has a predetermined sliding angle α of 45 ° or less. For this reason, the rubbing material w is not only filled in the concave portion a but also strongly pressed obliquely rearward as shown in FIGS. 8A and 8B, and the rubbing blade member 2 advances. The material w
Can be slid into the interior from the periphery of the concave portion a so as to draw an arc in the same manner as when the operator rubs in with irons, and the rubbing can be performed efficiently. FIG. 9 (a) shows a case where a sliding material w made of an elastic granular material is rubbed into a space portion of a pavement component A on a pavement surface A made of an asphalt concrete layer, and FIG. 9 (b) uses a rubber chip urethane resin or the like. This shows a case where a sliding material w made of an elastic granular material is rubbed into the concave portion for repairing the elastic pavement surface A.

In the case of the second embodiment, the screed plate 73 on the front surface can be formed by running the traveling device 7 immediately after the material w has been rubbed into the pavement surface A from the automixer 91 of the scatterer 9 and scattered. The sliding material w is roughly leveled, and subsequently each of the disks 1 and 2 of the plurality of granular material sliding devices S in the traveling device 7.
Since 1 is rotating, the sliding material w is automatically rubbed into the concave portion a by the mechanism described above. The same applies to the case where the traveling device 7 is run immediately after the sliding material w is sprayed by the spray nozzle. Therefore, in such an embodiment, the material can be efficiently slid into the recess over a wide area at once.

The rubbing blade member 2 is attached to the disk 1 by welding or the like. Instead, a holding member 6 ′ is attached to the disk 1 so that the rubbing blade member 2 is fitted into the groove 60. In this case, the rubbing blade member 2 can be attached and detached, so that the optimum sliding angle α can be easily set according to the size and depth of the concave portion. Also,
There is an advantage that the worn or missing rubbing blade member 2 can be easily replaced.

[0023]

According to the first aspect of the present invention described above, the granular material can be efficiently and reliably rubbed and filled into the concave portion of the pavement surface, and the structure is simple and inexpensive. An excellent effect of being able to do this is obtained.
According to the second aspect, the rubbing blade member 2 has a predetermined rubbing angle in the rotational direction with respect to the pavement surface, and the outer end portion 21 located at a position near the disk periphery entrains the material. As a result, an excellent effect is obtained that the sliding material can be reliably filled and slid into the corners of the recess. According to claim 3, since the rubbing blade member 2 is detachably attached to the disk 1, there is no need to replace the disk itself when the rubbing blade member 2 is worn or damaged. An excellent effect that the function can be easily restored can be obtained.
According to the fourth aspect, since a plurality of frames are arranged on the frame of the traveling device, an excellent effect that each of the devices according to the present invention can automatically and efficiently rub the material into the concave portion of the wide pavement surface can be obtained.

[Brief description of the drawings]

FIG. 1 is a partially cutaway side view showing a first embodiment of the device of the present invention.

2A is a bottom view of FIG. 1, and FIG. 2B is a bottom view of the disk alone.

FIG. 3 is an explanatory view showing an example of a rubbing blade member in the present invention in detail.

FIGS. 4A, 4B, and 4C are cross-sectional views illustrating the sliding angle of a rubbing blade member.

FIGS. 5A, 5B, and 5C are cross-sectional views showing examples of attaching a rubbing blade member to a disk.

FIG. 6 is a vertical sectional side view showing a second embodiment of the device of the present invention.

FIG. 7 is a plan view of a second embodiment.

FIGS. 8A and 8B are cross-sectional views showing a sliding state to which the present invention is applied.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Disc 2 Rubbing blade member 3 Drive rotation mechanism 7 Traveling device 21 Tip part 70 Frame α Sliding angle

Claims (4)

[Claims] 1. A means for rubbing a granular material into a concave portion of a pavement surface, wherein said disk is rotated by a drive rotating mechanism.
A plurality of rubbing blade members 2 having an inwardly curved shape in the rotation direction are attached to the bottom surface of the pavement surface, and the apparatus for rubbing granular material into a concave portion of a pavement surface is provided. 2. The rubbing blade member 2 has a predetermined rubbing angle α in the rotational direction with respect to the pavement surface A, and the outer end portion 21 located at a position near the periphery of the disc has the rubbing material w. 2. The apparatus for rubbing granular material into a concave portion of a pavement surface according to claim 1, wherein the device is configured to have a strong bending degree so as to be wrapped in without escaping in a radial direction. 3. The apparatus for rubbing granular material into a recess of a pavement surface according to claim 1, wherein the blade member for rubbing 2 includes one that is detachably attached to the disk 1. 4. A device for rubbing a granular material into a recess of a pavement surface according to claim 1, wherein a plurality of disks 2 with rubbing blade members are arranged in the traveling device 7. .