JP2012127142A - Road stud - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a road stud having projections which project on the top face of a road stud body and has large surface friction resistance, capable of exerting a high nonslip effect for pedestrians and two-wheel vehicles treading thereon for a long period.SOLUTION: A road stud 1 to be fastened on a road surface for use includes a road stud body 10 made of synthetic resin or rubber with a top face having a number of projections 13 which are integrally formed. The road stud body 10 contains a number of granular materials 15 blended therein. Part of the granular materials 15 are exposed at least on the surface of the projections 13 of the road stud body 10.

Description

  The present invention relates to road fences used in parking lots of private companies, shopping malls, etc., in addition to road outside lines, center lines, stop lines, and more specifically, slip prevention effects when pedestrians, motorcycles, etc. ride on It relates to road fences that have improved

  Conventionally, road anchors made of metal such as aluminum or synthetic resin have been used as outer lines, center lines, stop lines, etc. of roads by being fixed to the road surface (Patent Documents 1 to 3). Recently, rubber road fences have also been proposed.

  If such a roadway remains wet with moisture adhering to the upper surface during rainy weather or the like, there is a problem that when a pedestrian or a two-wheeled vehicle rides on the roadway, it easily slips and falls. This is particularly noticeable in the case of metal road fences. Synthetic resin or rubber road fences are less slippery than metal road fences, and in general, the upper surface of the road fence is inclined to remove moisture adhering to the upper surface. Although it is devised so that it can drain along an inclined surface, it is difficult to drain completely, and there is a risk of causing slippage when a pedestrian or motorcycle rides on the top surface.

  With respect to such a problem of the road surface slip, Patent Document 3 discloses that an inclined surface is provided by providing a plurality of disc-shaped protrusions at intervals along the edge of the inclined surface formed on the upper surface of the road surface. The protrusions prevent slipping at the edges of the skirt so that they do not slide to the inclined surface.

Japanese Utility Model Publication No. 60-029455 Japanese Patent Application Laid-Open No. 08-209641 JP 2008-190156 A

  However, even if the protrusions are provided along the edges of the inclined surface formed on the upper surface of the roadway as in Patent Document 3, slipping may occur depending on conditions such as the arrangement and dimensions of the protrusions. there were.

  For example, in Patent Document 3, since the protruding portion is formed along the edge of the inclined surface, if the height of the protruding portion is too small, the protruding portion is not easily caught, and the feet of pedestrians and motorcycles that ride There is a risk that the wheel easily slips over the protrusion and slips. Moreover, if the protrusions are buried in the water adhering to the upper surface of the road fence, there is a problem that slipping is more likely to occur. At this time, when the arrangement of the protrusions is rough (the density is small), the anti-slip function of the protrusions is further lowered, and there is a possibility that the protrusions may be more easily slipped.

  For this reason, it is desirable that the protrusions formed on the upper surface of the roadside are high in height and finely arranged. However, when the protrusions are high, particularly in the case of protrusions such as mountain shapes or corrugated shapes. If the surface area is increased, the surface of the protrusion may be slippery. Further, as the arrangement of the protrusions becomes finer (the density becomes larger), it becomes difficult to obtain the catch, so that there is also a problem that the slip is likely to occur.

  Therefore, the present invention exhibits a high anti-slip effect for a long period of time even when a pedestrian or a motorcycle rides by increasing the frictional resistance of the surface of the protrusion protruding from the upper surface of the main body of the road fence. It is an object to provide a road fence that can be used.

  The other subject of this invention becomes clear by the following description.

  The above-described problems of the present invention are solved by the following inventions.

(Claim 1)
In a road fence used by being fixed to the road surface, a large number of protrusions are integrally formed on the upper surface of the synthetic resin or rubber road fence body, and a large number of particles are formed in the road fence body. A road fence characterized in that a part of the granular material is raised on at least the surface of the protrusion in the road fence main body.

(Claim 2)
2. A roadway according to claim 1, wherein the granular material has a particle size of 0.5 mm to 4.0 mm.

(Claim 3)
The road fence according to claim 1 or 2, wherein the granular material is at least one of inorganic fine particles and rubber chips of waste tires.

(Claim 4)
4. The road fence according to claim 3, wherein the inorganic fine particles are at least one of sand, iron, glass, alumina, and silica.

(Claim 5)
5. The road fence according to claim 1, wherein a cross-sectional shape of the projecting portion is at least one of a triangular shape, a wave shape, a rectangular shape, a trapezoidal shape, and a dome shape.

(Claim 6)
The road ridge according to claim 1, wherein the protrusion has a height of 2.0 mm to 8.0 mm.

(Claim 7)
The road fence according to any one of claims 1 to 6, wherein an interval between the adjacent projecting portions is 4.0 mm to 8.0 mm.

(Claim 8)
8. The road fence according to claim 1, wherein an upper surface of the road fence body is an inclined surface that is inclined downward toward a side of the road fence body.

  According to the present invention, the granular material raised on the surface of the protrusion integrally formed on the upper surface of the roadside main body can increase the frictional resistance of the surface of the protrusion, and is high even when a pedestrian or motorcycle rides on the surface. An anti-slip effect can be exhibited.

  In addition, the granular material is mixed in the main body of the road fence, and the protrusion is formed integrally with the main body of the road fence. Since the granular material that has come to the surface rises and the frictional resistance of the granular material is maintained, the anti-slip effect can be exhibited over a long period of time.

Plan view of road fence according to the present invention Side view seen from direction A in FIG. Side view seen from direction B in FIG. Enlarged view showing the surface of one protrusion (A)-(c) is sectional drawing which shows a mode that a projection part is worn out Enlarged view inside the cavity showing the part corresponding to one protrusion of the mold by the casting method (A)-(d) is a side view which shows the other aspect of a projection part.

  The road fence in the present invention has a large number of protrusions integrally formed on the upper surface of a synthetic resin or rubber road fence body, and a large number of granular materials are mixed in the road fence body. Part of the granular material is protruded at least on the surface of the protrusion in the main body.

  As the synthetic resin or rubber (synthetic rubber) constituting the roadway, a high-strength material that can ensure durability against vehicle contact and riding is used, in particular, preventing damage due to vehicle contact and riding, and In order to absorb the impact, a soft material or an elastic material that is elastically deformed appropriately is preferably used. Examples thereof include olefin resins such as polyethylene and polypropylene, vinyl chloride resins, urethane resins (urethane rubbers), vinyl chloride acrylic copolymer resins, ethylene vinyl acetate copolymer resins, and the like, among which urethane rubber is preferably used.

  Part of the granular material mixed in the main body of the road fence (a part of which is mixed in the main body of the road main body) protrudes at least on the surface of the projection formed integrally from the upper surface of the main body of the road base. As a result, the surface of the protrusion is roughened. As a result, the frictional resistance of the surface of the protrusion is increased, and a high anti-slip effect is exhibited against the riding of pedestrians and motorcycles. For this reason, even if the protrusions are formed large and the surface area is increased, the occurrence of slipping can be suppressed. Even if the density of the protrusions is reduced, the large frictional resistance caused by the granular material After all, the occurrence of slipping can be suppressed.

  In addition, it has floated on the surface that the particle | grains which comprise one granule are located in the surface of a projection part, and are exposed to this surface. In order to further increase the frictional resistance, it is preferable that the granular material positioned on the surface of the protrusion as described above protrudes from the surface and is exposed.

  Moreover, since the granular material is mixed in the main body of the roadway, the granular material other than the granular material that is raised on the surface of the protruding portion exists in a state of being buried in the protruding portion. For this reason, even if the projections wear out due to long-term use, etc., and the granular material that floats on the surface disappears, new granular materials buried inside gradually protrude as the projections wear. It comes to be located on the surface of the part, and it comes to be raised on the surface and exhibits frictional resistance. Therefore, the anti-slip effect on the protrusion surface can be exhibited over a long period of time.

  Furthermore, if the granular material is provided so as to also protrude from the upper surface of the main body of the road fence (between adjacent protrusions), even if the protrusion is worn or destroyed due to long-term use, etc. The anti-slip effect over the range can be exhibited.

  The particle size of the granular material is preferably 0.5 mm to 4.0 mm.

  As the granular material suitably used in the present invention, inorganic fine particles and rubber chips of waste tires can be preferably used. Either one of these may be used, or both may be used in combination.

  As the inorganic fine particles, sand, iron, glass, alumina, and silica can be preferably used. Any one of these may be used, or two or more kinds may be appropriately mixed and used.

  From the viewpoint of ease of molding, the granular material preferably has a higher specific gravity than the material used for the main body of the road fence. If the granular material is mixed in the material in advance, and the material is poured into a mold placed so that the upper surface of the main body of the roadside is down, the granular material with a high specific gravity dispersed in the material will naturally fall downward. Since it moves and settles in the mold near the top surface of the main body of the road fence and the bottom surface that becomes the projection, the material is cured after standing for a predetermined time, so that the upper surface of the molded body of the road fence and the surface of the projection In addition, a large number of granular bodies can be raised, and the granular bodies can be buried in the interior.

  From the viewpoint of further improving the anti-slip effect, the protruding portion preferably has a height of 2.0 mm to 8.0 mm, more preferably 3.0 mm to 8.0 mm. 4.0 mm to 8.0 mm is more preferable.

  Further, from the viewpoint of further improving the drainage effect of water adhering to the upper surface of the main body of the roadway, the distance between adjacent protrusions is preferably 4.0 mm to 8.0 mm, and preferably 5.0 mm to 8.0 mm. Is more preferable, and 6.0 mm to 8.0 mm is still more preferable.

  The protrusions are formed in a convex shape protruding from the upper surface of the roadside main body and are two-dimensionally arranged on the upper surface, and become a drainage groove that opens between the adjacent protrusions to the side of the roadway main body. Yes. Since the protruding portion has a convex shape that protrudes from the upper surface of the main body of the road fence, the upper surface of the main body of the road fence is not formed with a concave portion with a closed periphery that causes water to cause slippage. The water adhering to can be drained well by the drainage grooves between the protrusions.

  The shape of the protrusion in the present invention is not particularly limited as long as it can prevent slippage when a pedestrian or motorcycle rides, but in general, the cross-sectional shape is triangular, wave shape, rectangular shape, It can be either trapezoidal or dome-shaped. These two or more types of projecting portions can be mixed and projected on the upper surface of the main body of the road fence.

  In the present invention, the upper surface (between adjacent protrusions) of the roadside main body does not have a flat surface (horizontal plane) and is directed toward the side of the roadside main body in order to improve drainage. The inclined surface is inclined downward. The inclined surface may be a flat inclined surface or a curved inclined surface. In addition, the inclined surface may be one that slopes downward from the vicinity of the center of the upper surface of the main body of the roadway (gable type or dormitory type), or one that slopes downward only to one side (single flow) Type).

  Next, specific embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a plan view of a road fence according to the present invention, FIG. 2 is a side view seen from the direction A in FIG. 1, and FIG. 3 is a side view seen from the direction B in FIG.

  The road fence 1 has a road fence body 10 exposed on the road surface when laid, and a leg portion protruding from the back surface of the road fence body 10 and embedded in the road when laid to fix the road fence 1 to the road. 20.

  Here, the main body 10 is made of polyurethane rubber, and presents a block-like body having a rectangular shape in plan view that protrudes upward from the road surface when laid. In the lower part of both sides of the road fence body 10, there are flange parts 11 that spread laterally and come into contact with the road surface. A large number of reflectors 12 are arranged. A retroreflective lens called a so-called cat's eye is used for the reflector 12 and is embedded in the road fence body 10 so that a substantially hemispherical head protrudes from the side surface of the road fence body 10.

  On the upper surface 10 a of the roadside main body 10, a large number of protrusions 13 are formed integrally with the roadway main body 10 and protrude. Each protrusion 13 is a rectangular parallelepiped having a protruding height from the upper surface 10a of 5 mm and a rectangular shape of 12 mm × 10 mm in plan view. Here, the upper surface 10a having a large number of protrusions 13 is a curved inclined surface that is gently inclined toward both sides in the longitudinal direction, and each protrusion 13 is an upper surface that is the curved inclined surface. 10a are arranged at intervals of 6 mm in the vertical and horizontal directions. Thus, a lattice-shaped drainage groove 14 that opens to the side of the roadside main body 10 is formed by the upper surface 10a of the roadside main body 10 located between the adjacent protrusions 13 and 13.

  As shown in FIG. 4, a large number of granular materials 15 are mixed in the roadway main body 10, and the upper surface 10 a (the bottom surface of the drainage groove 14) and the surface of each protruding portion 13 (the upper surface and side surfaces of the protruding portion 13). ), A part of the granular bodies 15 are provided so as to be exposed and floated, and a large number of granular bodies 15 are also buried in the interior of the main body 10 and the protrusions 13. Here, sand corresponding to dredged sand No. 4 was used as the granular material 15.

  The upper surface 10a of the roadside main body 10 and the surface of the protruding portion 13 become rough due to the exposure of a large number of granular bodies 15, and the frictional resistance of this portion increases, so that when pedestrians, motorcycles, etc. get on during rainy weather High anti-slip effect is demonstrated. In particular, as shown in FIG. 4, the upper surface 13a of the protrusion 13 is a flat surface, but since the granular material 15 is also raised on the upper surface 13a, a high anti-slip effect can be obtained even in rainy weather. .

  In addition, since a large number of granular materials 15 are embedded in the upper surface 10a of the main body 10 and the protrusions 13, even if the surface of the protrusions 13 is worn, new particles embedded in the interior are provided. The body 15 is raised on the surface. 5 (a) to 5 (c) show the state in which the protrusion 13 is worn in cross section, but the surface of the protrusion 13 is worn from the initial state shown in (a) as shown in (b). However, the new granular material 15 embedded in the protrusion 13 comes to be positioned on the surface of the protrusion 13 and eventually emerges on the surface of the protrusion 13. Further, as shown in (c), even if the wear progresses, the new granular material 15 buried further inside the protruding portion 13 is positioned on the surface of the protruding portion 13 and eventually comes to the surface. Therefore, a large frictional resistance on the surface of the protrusion 13 can be maintained for a long time. The granular material 15 floating on the upper surface 10a of the roadside main body 10 also functions in the same manner.

  Next, an example of a method for manufacturing such a road fence 1 will be described. Here, an example of manufacturing by a cast molding method is given, but it can also be manufactured by an injection molding method.

  First, the granular rubber 15 is mixed with the polyurethane rubber material for forming the road fence main body 10 so as to be 20 to 30% (weight ratio) of the material, and is stirred and dispersed in the material. After pouring into a mold placed so that the upper surface 10a and the protruding portion 13 of 10 are on the bottom, it is allowed to stand for a predetermined time.

  FIG. 6 shows a portion of one protrusion in the cavity 101 of the mold 100, and as shown in the figure, the granular material 15 having a higher specific gravity than the material 200 in the cavity 101 is gradually formed on the bottom surface of the cavity 101. Settling. Since the molding die 100 is arranged so that the upper surface 10a and the protruding portion 13 of the main body 10 are located below, a part of the granular material 15 that has settled near the bottom surface of the cavity 101 is taken out after molding. The molded product comes to be raised on the upper surface 10a of the main body 10 of the road fence and the surface of the protrusion 13.

  In this way, the granular material 15 is premixed in the material, and after pouring into the mold, the granular material 15 settles to the vicinity of the bottom surface of the molding die and is allowed to stand for a predetermined time until it concentrates near the bottom surface. Then, by simply forming in accordance with a normal forming method, a part of the granular material 15 is easily raised on the upper surface 10a of the roadway 10 and the surface of the protrusion 13, and the other granular material 15 is buried inside. It can exist in the form.

  FIG. 7 shows another aspect of the protrusion 13. The leg 20 is not shown.

  (A) is the aspect which formed the projection part 13 in the cross-sectional triangle shape. The outer shape of the protruding portion 13 may be a conical shape, or may be a pyramid shape such as a triangle or a square.

  (B) is the aspect which formed the projection part 13 in the corrugated form with which cross-sectional triangle shape continued. Since the bases of the adjacent protrusions 13 and 13 are in contact with each other, the drainage groove 14 is formed in a V shape.

  (C) is the aspect which formed the projection part 13 in the cross-sectional trapezoid shape. The shape of the projection 13 in plan view may be circular or rectangular.

  (D) is the aspect which formed the projection part 13 in the cross-sectional dome shape (hemisphere).

  In the protrusion 13 shown in (a), (b), and (d), when the granular material in the material is precipitated and molded as shown in FIG. 5, the top of the protrusion 13 on which a pedestrian, motorcycle, etc. rides. Since the granular material concentrates on the surface, a higher anti-slip effect can be obtained. In particular, in the projections 13 of (a) and (b) having a sharp apex at the top, the granular material can be more concentrated on the top, so that a higher anti-slip effect can be exhibited.

  The protrusions 13 shown in (c) and (d) are also formed in a continuous trapezoidal shape or dome shape by arranging so that the bases of the adjacent protrusions 13 and 13 are in contact with each other as shown in (b). May be.

DESCRIPTION OF SYMBOLS 1: Road fence 10: Road fence main body 10a: Upper surface 11: Eaves part 12: Reflector 13: Protrusion part 13a: Upper surface of protrusion part 14: Drainage groove 15: Granule 20: Leg part 100: Mold 101: Cavity 200 :material

Claims (8)

  In a road fence used by being fixed to the road surface, a large number of protrusions are integrally formed on the upper surface of the synthetic resin or rubber road fence body, and a large number of particles are formed in the road fence body. A road fence characterized in that a part of the granular material is raised on at least the surface of the protrusion in the road fence main body.   2. A roadway according to claim 1, wherein the granular material has a particle size of 0.5 mm to 4.0 mm.   The road fence according to claim 1 or 2, wherein the granular material is at least one of inorganic fine particles and rubber chips of waste tires.   4. The road fence according to claim 3, wherein the inorganic fine particles are at least one of sand, iron, glass, alumina, and silica.   5. The road fence according to claim 1, wherein a cross-sectional shape of the projecting portion is at least one of a triangular shape, a wave shape, a rectangular shape, a trapezoidal shape, and a dome shape.   The road ridge according to claim 1, wherein the protrusion has a height of 2.0 mm to 8.0 mm.   The road fence according to any one of claims 1 to 6, wherein an interval between the adjacent projecting portions is 4.0 mm to 8.0 mm. 8. The road fence according to claim 1, wherein an upper surface of the road fence body is an inclined surface that is inclined downward toward a side of the road fence body.

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