Road surface step elimination unit and road surface step elimination method

Abstract

To provide a unit to eliminate road surface level differences that can eliminate bigger road surface level differences than before and improve safety and efficiency of installing operation by workers.SOLUTION: A unit to eliminate road surface level differences 1 for eliminating a level difference S occurring on a road surface R comprises two or more road surface level difference elimination members 11 each having a top surface 11a inclined at a predetermined angle θ with respect to a bottom surface 11b and multiple flat raising materials 12. Each of the road surface level difference elimination members 11 is divided into two or more divided road surface level difference elimination members 111, 112, 113. The first road surface level difference elimination member 11A is installed on the road surface R at a position farthest from the level difference S. Two or more raising members 12 are arranged side by side on the road surface R adjacent to the first road surface level difference elimination member 11A. The second road surface level difference elimination member 11B is installed on two or more raising members 12.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present disclosure relates to a road surface step elimination unit and a road surface step elimination method.

Background Art

[0002] Conventionally, a road surface step elimination material for eliminating steps generated on the road surface has been known. This conventional road surface step elimination material includes a base block made of foamed resin, a load dispersion material, and an appropriate number of reinforcing members (Patent Document 1, Summary, Claim 1, etc.). The base block includes a bottom surface portion and an inclined upper surface portion that inclines at a predetermined angle with respect to the bottom surface portion. The load dispersion material is provided on the inclined upper surface portion of the base block. The reinforcing members are provided along the inclined direction of the inclined upper surface portion of the base block. Further, the load dispersion material is provided on the base block with the reinforcing members installed on the inclined upper surface portion of the base block.

[0003] In addition, the above-mentioned conventional road surface step elimination material may be entirely divided into two or more divided road surface step elimination materials in the inclined direction of the inclined upper surface portion (Patent Document 1, Summary, Claim 2, etc.). In this case, each divided road surface step elimination material is joined by a connecting mechanism.

[0004] Conventionally, a temporary slope suitable for passing a cart through a stepped portion provided in a work area such as a construction site or a manufacturing site has been known. This conventional temporary slope is a slope provided at a stepped portion between a low floor portion and a high floor portion, and has a plurality of rectangular blocks and inclined blocks (Patent Document 2, Claim 2, etc.). The rectangular blocks are formed of a resin material and are set to have a longer length than the height. The inclined blocks are obtained by cutting the rectangular blocks along the diagonal line in the length direction.

[0005] The above-described conventional temporary slope is configured by stacking the rectangular blocks in a stepped manner on the step portion, arranging the inclined blocks above the stacked rectangular blocks and adjacent to the step composed of a single row of rectangular blocks, and making the inclined surfaces formed by the inclined blocks continuous. This temporary slope is provided with a connecting mechanism between adjacent blocks and between stacked blocks.

Prior Art Documents

Patent Documents

[0006]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0007] The above-described conventional road surface step elimination material can quickly and easily eliminate the steps generated on the road surface, and by connecting a plurality of divided road surface step elimination materials, even for higher steps, it is possible to connect the lower part and the higher part with a continuous inclined surface. However, when the step becomes even higher, the height of the divided road surface step elimination material increases, resulting in an increase in weight, which may make it difficult for workers to install.

[0008] Therefore, it is conceivable to use the rectangular blocks of the above-described conventional temporary slope together with the above road surface step elimination material. However, convex portions and concave portions constituting the connecting portions are respectively formed on the upper surface and the bottom surface of this rectangular block (see Patent Document 2, FIGS. 4 and 5, etc.). Therefore, when installing the rectangular block, for example, a worker may slip on the convex portion on the upper surface of the rectangular block and lose balance, or dust may clog the concave portion of the rectangular block, preventing the connection between the upper and lower rectangular blocks, which may reduce the safety and efficiency of the installation work.

[0009] The present disclosure provides a road surface step elimination unit and a road surface step elimination method that can eliminate steps higher than those in the prior art and can improve the safety and efficiency of installation work by workers.

Means for Solving the Problems

[0010] One aspect of the present disclosure is a road surface step elimination unit for eliminating a step formed on a road surface, including two or more road surface step elimination members in which the upper surface is inclined at a predetermined angle with respect to the bottom surface, and a plurality of flat raising members. Each of the road surface step elimination members is divided into two or more divided road surface step elimination members in the inclination direction of the upper surface. Among the two or more road surface step elimination members, the first road surface step elimination member is installed on the road surface at a position farthest from the step in accordance with the inclination direction and the step passing direction in which the vehicle passes through the step. Among the plurality of raising members, two or more raising members are arranged side by side on the road surface adjacent to the first road surface step elimination member in the step passing direction. Among the two or more road surface step elimination members, the second road surface step elimination member is installed on the two or more raising members adjacent to the first road surface step elimination member in accordance with the inclination direction and the step passing direction. It is a road surface step elimination unit characterized by this.

[0011] Another aspect of the present disclosure is a road surface step elimination method for eliminating steps formed on a road surface, comprising: two or more road surface step elimination materials having an upper surface inclined at a predetermined angle with respect to a bottom surface; and a plurality of flat raising materials. Each of the road surface step elimination materials uses a road surface step elimination unit divided into two or more divided road surface step elimination materials in the inclination direction of the upper surface. Among the two or more road surface step elimination materials, a first road surface step elimination material is installed on the road surface at a position farthest from the step with the inclination direction aligned with the step passing direction in which the vehicle passes the step. Among the plurality of raising materials, two or more raising materials are arranged side by side on the road surface adjacent to the first road surface step elimination material in the step passing direction. Among the two or more road surface step elimination materials, a second road surface step elimination material is installed on the two or more raising materials adjacent to the first road surface step elimination material with the inclination direction aligned with the step passing direction. This is a road surface step elimination method characterized by the above.

Effect of the Invention

[0012] According to each of the above aspects of the present disclosure, it is possible to provide a road surface step elimination unit and a road surface step elimination method that can eliminate steps higher than before and improve the safety and efficiency of installation work by workers.

Brief Description of the Drawings

[0013]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Mode for Carrying Out the Invention

[0014] Hereinafter, the road surface step elimination unit according to the present disclosure will be described with reference to the drawings.

[0015] FIG. 1 is a cross-sectional view showing an embodiment of the step elimination unit according to the present disclosure. FIG. 2 is a plan view of the road surface step elimination unit 1 shown in FIG. 1. The road surface step elimination unit 1 of the present embodiment is installed on a road surface R such as a highway or a road bridge, for example, and eliminates a step S generated on the road surface R to enable vehicles to pass.

[0016] Such a step S on the road surface R may occur at a road joint such as a highway or a road bridge due to a natural disaster such as an earthquake. Further, at the time of occurrence of a natural disaster such as an earthquake, in addition to the step S, an opening G may occur at a road joint such as a highway or a road bridge. The road surface step elimination unit 1 of the present embodiment also eliminates the opening G generated on the road surface R such as a highway or a road bridge, and enables vehicles such as emergency vehicles and freight trucks to pass.

[0017] The road surface step elimination unit 1 includes two or more road surface step elimination materials 11 whose upper surface 11a is inclined at a predetermined angle θ with respect to the bottom surface 11b, and a plurality of flat raising materials 12. Each road surface step elimination material 11 is divided into two or more divided road surface step elimination materials 111, 112, 113 in the inclination direction Dt of the upper surface 11a. Further, the road surface step elimination unit 1 of the present embodiment further includes, for example, a flat bridging material 13.

[0018] As shown in FIG. 1, the road surface step elimination unit 1 includes, for example, two road surface step elimination materials 11 in the step passing direction Ds, which is the direction in which the vehicle passes through the step S, but may include three or more road surface step elimination materials 11 according to the height of the step S. Further, each road surface step elimination material 11 is divided into three divided road surface step elimination materials 111, 112, 113 in the inclination direction Dt of the upper surface 11a, but may be divided into two or four or more.

[0019] Further, the road surface step elimination unit 1 includes two or more sets of two or more road surface step elimination materials 11 arranged in the step passing direction Ds in two or more sets in the width direction Dw orthogonal to the step passing direction Ds. In the example shown in FIG. 2, the road surface step elimination unit 1 includes two sets of two road surface step elimination materials 11 arranged in the step passing direction Ds with a gap in the width direction Dw. Note that the road surface step elimination unit 1 may include three or more sets of two or more road surface step elimination materials 11 arranged in the step passing direction Ds in the width direction Dw. In this case, each set of road surface step elimination materials 11 arranged in the width direction Dw may be arranged without a gap in the width direction Dw, for example.

[0020] Among two or more road surface step elimination materials 11 arranged in the step passing direction Ds, the first road surface step elimination material 11A is installed on the road surface R below the step S at a position farthest from the step S with the inclination direction Dt of the upper surface 11a aligned with the step passing direction Ds. Among the plurality of raising materials 12, two or more raising materials 12 are arranged side by side on the road surface R below the step S adjacent to the first road surface step elimination material 11A in the step passing direction Ds.

[0021] In the example shown in FIG. 1, among the plurality of lifting members 12 of the road surface step elimination unit 1, in the step passing direction Ds, two or more lifting members 12 arranged side by side adjacent to the first road surface step elimination member 11A are stacked in two or more upper and lower stages. More specifically, in the step passing direction Ds, four lifting members 12 are arranged side by side adjacent to the step S side of the first road surface step elimination member 11A, and these four lifting members 12 arranged in the step passing direction Ds are stacked in three upper and lower stages. Note that the number of lifting members 12 arranged side by side in the step passing direction Ds may be two, three, or five or more, and the number of stages of the lifting members 12 stacked vertically may be four or more.

[0022] In the example shown in FIG. 1, the plurality of lifting members 12 of the road surface step elimination unit 1 include a first lifting member 12A and a second lifting member 12B. In the step passing direction Ds, the dimension of the second lifting member 12B is larger than the dimension of the first lifting member 12A. In the step passing direction Ds, the dimension of the first lifting member 12A is, for example, about 500 mm, and the dimension of the second lifting member 12B is, for example, about 880 mm. In the step passing direction Ds, the dimension of the second lifting member 12B is, for example, about one-third of the dimension of each road surface step elimination member 11.

[0023] Further, among two or more road surface step elimination members 11, the second road surface step elimination member 11B is installed on two or more lifting members 12 adjacent to the first road surface step elimination member 11A with the inclination direction Dt aligned with the step passing direction Ds. In the example shown in FIG. 1, in the step passing direction Ds, adjacent to the first road surface step elimination member 11A, a total of four lifting members 12 including one first lifting member 12A and three second lifting members 12B adjacent to this first lifting member 12A are arranged. Also, these four lifting members 12 arranged in the step passing direction Ds are stacked in three upper and lower stages.

[0024] Therefore, in the example shown in FIG. 1, the second road surface step elimination material 11B is disposed on a total of 12 lifting materials 12. Further, as described above, in the step passing direction Ds, the dimension of the first lifting material 12A is smaller than the dimension of the second lifting material 12B, and the dimension of the second lifting material 12B is, for example, about one-third of the dimension of the road surface step elimination material 11. Thus, in the step passing direction Ds, the second lifting material 12B that is farthest from the first road surface step elimination material 11A and closest to the step S protrudes from the end portion on the step S side of the second road surface step elimination material 11B toward the step S by the dimension of the first lifting material 12A.

[0025] In the road surface step elimination unit 1 of the present embodiment, two or more first lifting materials 12A are installed on the second lifting material 12B that is stacked in three levels vertically and protrudes from the end portion on the step S side of the second road surface step elimination material 11B. In the example shown in FIG. 1, three first lifting materials 12A are stacked on the second lifting material 12B that protrudes from the end portion on the step S side of the second road surface step elimination material 11B and is stacked in three levels. Further, in the example shown in FIG. 1, the thicknesses of all the lifting materials 12 including the first lifting material 12A and the second lifting material 12B are equal.

[0026] The thickness of the lifting material 12 is, for example, the difference between the thickness of the rear end portion on the step S side of the road surface step elimination material 11 having the maximum thickness and the thickness of the front end portion on the side opposite to the step S of the road surface step elimination material 11 having the minimum thickness, divided by the number of levels stacked vertically. More specifically, in the example shown in FIG. 1, the thickness of the lifting material 12 is about one-third of the difference between the thickness of the rear end portion and the thickness of the front end portion of the road surface step elimination material 11. In this case, three lifting materials 12 are stacked vertically on the road surface R adjacent to the rear end portion of the first road surface step elimination material 11A installed on the road surface R, and the second road surface step elimination material 11B is installed thereon. Then, the upper surface 11a of the first road surface step elimination material 11A and the upper surface 11a of the second road surface step elimination material 11B are continuously connected without a step in the inclination direction Dt.

[0027] Also, as described above, on the second raising member 12B that is disposed below the second road surface step eliminating material 11B and protrudes from the rear end portion on the step S side of the second road surface step eliminating material 11B, three first raising members 12A are stacked. As a result, a step corresponding to the thickness of the tip portion of the second road surface step eliminating material 11B is formed between the upper surface 12a of the uppermost first raising member 12A among these three first raising members 12A and the upper surface 11a of the rear end portion of the second road surface step eliminating material 11B.

[0028] In this way, one end of the bridging member 13 is disposed on the first raising member 12A having a step in the height direction with respect to the rear end portion of the second road surface step eliminating material 11B, and the other end of the bridging member 13 is disposed on the road surface R above the step S. Thereby, the bridging member 13 is bridged over the opening G in the step passing direction Ds formed between the road surface R below the step S and the road surface R above. As described above, in the road surface step eliminating unit 1 of the present embodiment, the bridging member 13 is disposed on two or more raising members 12 that are not disposed below the second road surface step eliminating material 11B among the plurality of raising members 12.

[0029] Further, in the road surface step eliminating unit 1 of the present embodiment, the dimensions of each raising member 12 in the step passing direction Ds are different from the dimensions of each divided road surface step eliminating material 111, 112, 113 in the step passing direction Ds. Therefore, in the step passing direction Ds, the joints 12j of two or more raising members 12 disposed below the second raising member 12B are displaced from the joints 11j of the two or more divided road surface step eliminating materials 111, 112, 113 of the second road surface step eliminating material 11B.

[0030] More specifically, for example, the dimension of the first split road surface step elimination material 111 in the step passing direction Ds is larger than the dimension of the first raising material 12A in the step passing direction Ds and smaller than the dimension of the second raising material 12B in the step passing direction Ds. Also, the dimension of the second split road surface step elimination material 112 in the step passing direction Ds is, for example, slightly smaller than the dimension of the second raising material 12B in the step passing direction Ds. Further, the dimension of the third split road surface step elimination material 113 in the step passing direction Ds is, for example, larger than the dimension of the second raising material 12B in the step passing direction Ds.

[0031] Also, the road surface step elimination unit 1 includes two or more raising materials 12 arranged in the step passing direction Ds in two or more sets in the width direction Dw orthogonal to the step passing direction Ds. In the example shown in FIG. 2, the road surface step elimination unit 1 includes two sets of twelve raising materials 12 arranged in four in the step passing direction Ds and stacked in three levels vertically, and three raising materials 12 stacked thereon, with a gap therebetween in the width direction Dw. Note that the road surface step elimination unit 1 may include three or more sets of raising materials 12 arranged in two or more in the step passing direction Ds and stacked in two or more levels vertically in the width direction Dw. In this case, each set of the raising materials 12 arranged in the width direction Dw may be arranged without a gap, for example, in the width direction Dw.

[0032] FIGS. 3 and 4 are exploded perspective views of the base block 11c of the road surface step elimination material 11 shown in FIGS. 1 and 2, respectively, viewed obliquely upward and obliquely downward. FIG. 5 is a perspective view of the load dispersion material 11d and the reinforcing member 11e of the road surface step elimination material 11 viewed obliquely upward. FIG. 6 is a top view and a side view of the road surface step elimination material 11 shown in FIGS. 1 and 2. The road surface step elimination material 11 includes, for example, a base block 11c, a load dispersion material 11d, and a reinforcing member 11e.

[0033] The base block 11c is, for example, a member made of foamed resin, and includes a flat bottom surface portion 11c1 and a flat inclined upper surface portion 11c2 that is inclined at a required angle θ with respect to the bottom surface portion 11c1. The angle θ of the inclined upper surface portion 11c2 with respect to the bottom surface portion 11c1 is, for example, about 1 degree to about 10 degrees. Also, the dimension in the width direction Dw of the base block 11c is, for example, about 1000 mm. Both side surfaces 11c3 on both sides in the width direction Dw of the base block 11c and the rear end surface 11c4 in the step passing direction Ds are perpendicular to the bottom surface portion 11c1, respectively.

[0034] The base block 11c that constitutes the divided road surface step elimination member 111 at the tip of the road surface step elimination member 11 has a shape in which the tip of a triangle in side view is cut off. At this cut-off tip portion, the bottom surface portion 11c1 of the base block 11c is cut out over the entire width direction Dw to form a stepped space portion. As shown in FIG. 6, at the tip of the divided road surface step elimination member 111 at the tip of the road surface step elimination member 11, a tip protection member 11f is provided in the space portion at the tip of the base block 11c. The tip protection member 11f is formed of, for example, the same material as the load dispersion material 11d. The tip protection member 11f has a flat bottom surface portion 11f1 and an inclined upper surface portion 11f2 that is inclined at a predetermined angle θ with respect to the bottom surface portion 11f1. The tip portion of the tip protection member 11f is chamfered.

[0035] The inclined upper surface portion 11c2 of the base block 11c has a plurality of recessed grooves 11c5 that extend parallel to each other in the inclined direction Dt over the entire inclined direction Dt. The bottom surface of the recessed groove 11c5 is open in the space portion formed at the tip portion of the base block 11c that constitutes the first divided road surface step elimination member 111 at the tip of the road surface step elimination member 11. At a position close to the bottom surface portion 11c1 on the side surface 11c3 of the base block 11c, a notch 11c6 having a size that allows a person's hand to enter is formed. The material of the base block 11c made of foamed resin is preferably foamed polystyrene having a foaming ratio of about 15 to 30 times because it is lightweight and easily ensures the required strength. However, other materials such as polypropylene, rigid urethane, ABS resin, and vinyl chloride may also be used.

[0036] The base block 11c that constitutes the first divided road surface step elimination material 111 at the tip of the road surface step elimination material 11 has a notch recess 11c7 that is recessed from the bottom surface portion 11c1 toward the inclined upper surface portion 11c2 at the rear end portion disposed on the step S side in the step passing direction Ds. Also, a notch recess 11c7 similar to the base block 11c of the first divided road surface step elimination material 111 is formed at the rear end portion of the base block 11c that constitutes the second divided road surface step elimination material 112 in the middle of the road surface step elimination material 11. A plurality of T-shaped locking protrusions 11c8 that protrude downward are integrally formed on the top surface portions of these notch recesses 11c7.

[0037] Also, the base block 11c that constitutes the second divided road surface step elimination material 112 at the center of the road surface step elimination material 11 has a notch recess 11c9 that is recessed from the inclined upper surface portion 11c2 toward the bottom surface portion 11c1 at the tip portion disposed on the side opposite to the step S in the step passing direction Ds. Also, a notch recess 11c9 similar to the base block 11c of the second divided road surface step elimination material 112 is formed at the tip portion of the base block 11c that constitutes the third divided road surface step elimination material 113 at the rear end of the road surface step elimination material 11. A plurality of T-shaped locking concave grooves 11c10 that are recessed downward are integrally formed on the bottom surface portions of these notch recesses 11c9.

[0038] The notch recess 11c7 at the rear end portion of the first divided road surface step elimination material 111 and the notch recess 11c9 at the tip portion of the second divided road surface step elimination material 112 have the same depth in the vertical direction and the same depth in the depth direction in the step passing direction Ds. Similarly, the notch recess 11c7 at the rear end portion of the second divided road surface step elimination material 112 and the notch recess 11c9 at the tip portion of the third divided road surface step elimination material 113 have the same depth in the vertical direction and the same depth in the depth direction in the step passing direction Ds.

[0039] In addition, the T-shaped locking protrusion 11c8 provided on the base block 11c of the first split road surface step elimination material 111 and the T-shaped locking groove 11c10 provided on the base block 11c of the second split road surface step elimination material 112 are approximately the same in shape and dimensions. Similarly, the T-shaped locking protrusion 11c8 provided on the base block 11c of the second split road surface step elimination material 112 and the T-shaped locking groove 11c10 provided on the base block 11c of the third split road surface step elimination material 113 are approximately the same in shape and dimensions.

[0040] In addition, the T-shaped locking protrusion 11c8 and the T-shaped locking groove 11c10 are formed at equal positions in the width direction Dw on their respective base blocks 11c. As a result, when the notch recess 11c7 of the base block 11c of the first split road surface step elimination material 111 and the notch recess 11c9 of the base block 11c of the second split road surface step elimination material 112 are stacked vertically, the T-shaped locking protrusion 11c8 fits into the T-shaped locking groove 11c10. Also, when the notch recess 11c7 of the base block 11c of the second split road surface step elimination material 112 and the notch recess 11c9 of the base block 11c of the third split road surface step elimination material 113 are stacked vertically, the T-shaped locking protrusion 11c8 fits into the T-shaped locking groove 11c10.

[0041] The road surface step elimination material 11 is assembled, for example, by the following procedure. First, the T-shaped locking protrusion 11c8 at the rear end of the second split road surface step elimination material 112 is fitted into the T-shaped locking groove 11c10 at the tip of the third split road surface step elimination material 113 to integrally connect the third split road surface step elimination material 113 and the second split road surface step elimination material 112. Next, the T-shaped locking protrusion 11c8 at the rear end of the first split road surface step elimination material 111 is fitted into the T-shaped locking groove 11c10 at the tip of the second split road surface step elimination material 112 to integrally connect the first split road surface step elimination material 111, the second split road surface step elimination material 112, and the third split road surface step elimination material 113.

[0042] That is, each road surface step elimination material 11 is provided with a connection mechanism including a notch recess 11c7, a T-shaped locking projection 11c8, a notch recess 11c9, and a T-shaped locking groove 11c10. And two or more divided road surface step elimination materials 111, 112, 113 of each road surface step elimination material 11 are connected and joined by the connection mechanism.

[0043] As shown in FIGS. 5 and 6, each road surface step elimination material 11 includes a load dispersion material 11d and a reinforcing member 11e. The load dispersion material 11d is a flat plate-like member provided on the inclined upper surface portion 11c2 of the base block 11c constituting each of the divided road surface step elimination materials 111, 112, 113. The load dispersion material 11d disperses the load when the vehicle passes over the road surface step elimination material 11, avoiding a large concentrated load acting on the base block 11c. The surface of the load dispersion material 11d that becomes the upper surface 11a of the road surface step elimination material 11 may be a flat surface, but may have minute irregularities for preventing the vehicle from slipping, or may be subjected to surface treatment for slip prevention.

[0044] A suitable number of reinforcing members 11e are provided along the inclined direction Dt of each road surface step elimination material 11. In the example shown in FIG. 5, three reinforcing members 11e are provided for each load dispersion material 11d. The reinforcing member 11e is fixed to the load dispersion material 11d. The reinforcing member 11e is fitted into a recessed groove 11c5 provided in the inclined upper surface portion 11c2 of the base block 11c constituting each of the divided road surface step elimination materials 111, 112, 113 of the road surface step elimination material 11 shown in FIG. 3, installed in the recessed groove 11c5, and fixed by an adhesive. In this way, by fitting and fixing the reinforcing member 11e fixed to the load dispersion material 11d into the recessed groove 11c5 of the base block 11c, the load dispersion material 11d is provided on the base block 11c in a state where the reinforcing member 11e is installed on the inclined upper surface portion 11c2 of the base block 11c.

[0045] The materials of the load dispersing member 11d and the reinforcing member 11e are not particularly limited. For example, materials having sufficient strength against the load of a vehicle such as resin materials, steel materials, concrete materials, fiber reinforced resin materials, wood-based synthetic materials, synthetic rubber, and rubber-containing resin materials can be selected. From the viewpoint of achieving both weight reduction and sufficient strength assurance of the load dispersing member 11d and the reinforcing member 11e, the materials of the load dispersing member 11d and the reinforcing member 11e are preferably fiber reinforced resin materials.

[0046] FIG. 7 is a top view and a side view of the lifting member 12 shown in FIGS. 1 and 2. In FIG. 7, a top view and a side view of the first lifting member 12A are shown on the left side, and a top view and a side view of the second lifting member 12B are shown on the right side. The lifting member 12 includes a base block 121 made of foamed resin and a surface material 122 provided on the base block 121.

[0047] The base block 121 is, for example, a rectangular plate-like member having the step passing direction Ds as the short side direction and the width direction Dw orthogonal to the step passing direction Ds as the long side direction. As the material of the base block 121, for example, the same material as the base block 11c of the road surface step eliminating member 11 can be used. The thickness of the base block 121 is, for example, about 90 mm.

[0048] The surface material 122 is, for example, a rubber mat having a thickness of about 5 mm and is joined to the upper surface of the base block 121 via an adhesive. Note that the surface material 122 is not limited to a rubber mat, and for example, the same material as the load dispersing member 11d of the road surface step eliminating member 11 can also be used. Further, the surface 122a of the surface material 122 that becomes the upper surface of the lifting member 12 may be flat or may have minute irregularities.

[0049] FIG. 8 is a top view and an enlarged side view showing examples of minute convex portions 122b and 122c formed on the surface 122a of the surface material 122 of the lifting member 12 in FIG. 7. In FIG. 8, a plurality of convex portions 122b provided in a staggered pattern are shown on the left side, and a plurality of convex portions 122c provided in a streak pattern are shown on the right side.

[0050] As shown on the left side of FIG. 8, a plurality of convex portions 122b arranged in a staggered manner, for example, each convex portion 122b has a circular shape in plan view. The height h of this circular convex portion 122b is 5 mm or less. More specifically, the convex portion 122b, for example, has a height h of about 1.6 mm and a diameter d of about 10 mm. Also, the thickness t of the surface material 122 is, for example, about 5 mm.

[0051] Also, the total area of the portions of the surface 122a of the surface material 122 where the convex portions 122b are formed is, for example, 5% or more of the total area of the entire surface 122a. More specifically, the total area of the portions of the surface 122a of the surface material 122 where a plurality of convex portions 122b are formed is, for example, about 6.5% of the total area of the entire surface 122a.

[0052] Also, as shown on the right side of FIG. 8, a plurality of convex portions 122c provided in a rib shape, for example, extend in a direction intersecting the step passing direction Ds. More specifically, the plurality of convex portions 122c, for example, extend in a direction perpendicular to the step passing direction Ds and parallel to the width direction Dw. The height h of this rib-shaped convex portion 122c is 5 mm or less.

[0053] More specifically, the rib-shaped convex portion 122c, for example, has a height h of about 1.6 mm, a width w in the step passing direction Ds of about 2.2 mm, and a spacing c between adjacent convex portions 122c of about 2.5 mm. In the step passing direction Ds, the spacing c between two adjacent convex portions 122c among the plurality of convex portions 122c is, for example, 80% or more and 120% or less of the width w of each convex portion 122c.

[0054] Also, the thickness t of the surface material 122 provided with the rib-shaped convex portions 122c is, for example, about 5 mm. Also, the total area of the portions of the surface 122a of the surface material 122 where a plurality of rib-shaped convex portions 122c are formed is, for example, 5% or more of the total area of the entire surface 122a. More specifically, the total area of the portions of the surface 122a of the surface material 122 where the convex portions 122c are formed is, for example, 51% or less of the total area of the entire surface 122a.

[0055] FIG. 9 is a perspective view of the bridging member 13 of the road surface step elimination unit 1 shown in FIG. 1. The bridging member 13 is disposed on two or more of the raising members 12 that are not disposed under the second road surface step elimination member 11B among the plurality of raising members 12. The bridging member 13 is made of a fiber-reinforced resin and is provided, for example, in a hollow flat plate shape. More specifically, the bridging member 13 has, for example, an upper plate 131, a lower plate 132, and a plurality of reinforcing members 133.

[0056] The upper plate 131 and the lower plate 132 are, for example, rectangular flat plates made of a fiber-reinforced resin. The reinforcing member 133 is, for example, a square tubular member made of a fiber-reinforced resin. The plurality of reinforcing members 133 are arranged, for example, parallel to the step passing direction Ds of the road surface step elimination unit 1, arranged at equal intervals in the width direction Dw of the road surface step elimination unit 1, and disposed between the upper plate 131 and the lower plate 132. The upper plate 131, the lower plate 132, and the plurality of reinforcing members 133 are joined and integrated, for example, via an adhesive. Note that the number of the reinforcing members 133 is not limited to three shown in FIG. 9 and may be four or more.

[0057] Note that, instead of the bridging member 13 shown in FIG. 9, it is also possible to use the load dispersing member 11d shown in FIG. 5 as the bridging member. In this case, the load dispersing member 11d may have four or more reinforcing members 11e, or may not have the reinforcing members 11e. Further, when the load dispersing member 11d is used as the bridging member, the material of the load dispersing member 11d is not particularly limited, but a fiber-reinforced reinforcing resin material can be used from the viewpoint of achieving both weight reduction and ensuring sufficient strength.

[0058] Hereinafter, the operation of the road surface step elimination unit 1 of the present embodiment will be described.

[0059] For example, when a natural disaster such as an earthquake occurs, a step S may occur at a road joint such as a highway or a road bridge. Further, at the time of a disaster, an opening G may also occur at the road joint in addition to the step S. In such a case, it is required to quickly eliminate the step S and the opening G generated on the road surface R and allow vehicles such as emergency vehicles rushing to the disaster site and freight trucks transporting materials to the disaster site to pass through.

[0060] The conventional road surface step elimination material described in the aforementioned Patent Document 1 can quickly and easily eliminate the steps generated on the road surface. By connecting a plurality of divided road surface step elimination materials, for example, even for a step as high as about 30 cm, it is possible to connect the lower part and the higher part with a continuous inclined surface. However, when the step becomes even higher, the height of the divided road surface step elimination material increases, resulting in an increase in weight, which may make it difficult for workers to install.

[0061] Therefore, it is conceivable to use the rectangular blocks described in the aforementioned Patent Document 2 together with the above road surface step elimination material. However, convex portions and concave portions constituting the connecting portions are respectively formed on the upper surface and the bottom surface of the rectangular block. Therefore, when installing the rectangular block, for example, a worker may slip on the convex portion of the upper surface of the rectangular block and lose balance, or dust may accumulate in the concave portion of the rectangular block, preventing the connection of the upper and lower rectangular blocks, which may reduce the efficiency of the installation work.

[0062] In contrast, the road surface step elimination unit 1 of the present embodiment eliminates the step S generated on the road surface R with the following configuration. The road surface step elimination unit 1 includes two or more road surface step elimination materials 11 in which the upper surface 11a is inclined at a predetermined angle θ with respect to the bottom surface 11b, and a plurality of flat raising materials 12. Each road surface step elimination material 11 is divided into two or more divided road surface step elimination materials 111, 112, 113 in the inclination direction Dt of the upper surface 11a. Among these two or more divided road surface step elimination materials 111, 112, 113, the first road surface step elimination material 11A is installed on the road surface R at a position farthest from the step S with the inclination direction Dt aligned with the step passing direction Ds in which the vehicle passes through the step S. Among the plurality of raising materials 12, two or more raising materials 12 are arranged side by side on the road surface R adjacent to the first divided road surface step elimination material 111 in the step passing direction Ds. And among the two or more road surface step elimination materials 11, the second road surface step elimination material 11B is installed on two or more raising materials 12 adjacent to the first road surface step elimination material 11A with the inclination direction Dt aligned with the step passing direction Ds.

[0063] Further, the road surface step elimination method of the present embodiment includes two or more road surface step elimination members 11 in which the upper surface 11a is inclined at a predetermined angle θ with respect to the bottom surface 11b, and a plurality of flat raising members 12. Each road surface step elimination member 11 uses a road surface step elimination unit 1 divided into two or more divided road surface step elimination members 111, 112, 113 in the inclination direction Dt of the upper surface 11a to eliminate the steps generated on the road surface. Specifically, first, among the two or more road surface step elimination members 11, the first road surface step elimination member 11A is installed on the road surface R at the position farthest from the step S with the inclination direction Dt aligned with the step passing direction Ds in which the vehicle passes through the step S. Next, among the plurality of raising members 12, two or more raising members 12 are arranged side by side on the road surface R adjacent to the first road surface step elimination member 11A in the step passing direction Ds. Then, among the two or more road surface step elimination members 11, the second road surface step elimination member 11B is installed on two or more raising members 12 adjacent to the first road surface step elimination member 11A with the inclination direction Dt aligned with the step passing direction Ds.

[0064] With such a configuration, the road surface step elimination unit 1 and the road surface step elimination method of the present embodiment can eliminate the step S generated on the road surface R by the first road surface step elimination member 11A installed on the road surface R, two or more raising members 12 installed on the road surface R adjacent to the first road surface step elimination member 11A, and the second road surface step elimination member 11B installed on the two or more raising members 12. Thereby, the height of the second road surface step elimination member 11B can be raised by the raising member 12, and for example, a step S higher than the conventional one of about 40 cm to about 60 cm can be eliminated without increasing the height of each road surface step elimination member 11.

[0065] Therefore, among the two or more divided road surface step elimination materials 111, 112, and 113 that make up the road surface step elimination material 11, the divided road surface step elimination material 113 that is arranged closest to the step S and has the maximum height at the rear end on the step S side can have its weight increase suppressed. Therefore, according to the road surface step elimination unit 1 of the present embodiment, while being able to eliminate a step S higher than before, it is possible to suppress an increase in the weight of the road surface step elimination material 11 and facilitate the installation of the road surface step elimination material 11 by an operator.

[0066] Also, the raising material 12 of the road surface step elimination unit 1 of the present embodiment is flat and does not have the convex and concave portions that form the connecting portions on the upper and lower surfaces like the conventional rectangular block. Therefore, when installing the raising material 12, an operator can work stably on the raising material 12. Also, since the raising material 12 does not have convex or concave portions that form the connecting portions on the upper and lower surfaces, a decrease in the efficiency of the installation work due to clogging of dust like the conventional rectangular block is prevented. Therefore, according to the road surface step elimination unit 1 of the present embodiment, it is possible to improve the safety and efficiency of the installation work by an operator compared to before.

[0067] Also, when the conventional rectangular block described in Patent Document 2 is installed by stacking on the road surface, for example, a step may occur between adjacent rectangular blocks due to the unevenness of the road surface. As a result, a step may occur between the inclined surfaces of adjacent inclined blocks. Such a step on the inclined surface can be a factor causing displacement in the rectangular blocks or inclined blocks arranged in a stepped manner, for example, when a vehicle passes.

[0068] In contrast, for the road surface step elimination unit 1 of the present embodiment, the dimensions of each of the plurality of raising members 12 in the step passing direction Ds of the raising member 12 are different from the dimensions of each of the two or more divided road surface step elimination members 111, 112, 113 in the step passing direction Ds of the divided road surface step elimination members 111, 112, 113. As a result, in the step passing direction Ds, the joints 12j of the two or more raising members 12 arranged under the second road surface step elimination member 11B are offset from the joints 11j of the plurality of divided road surface step elimination members 111, 112, 113 of the second road surface step elimination member 11B.

[0069] With such a configuration, the road surface step elimination unit 1 of the present embodiment can prevent steps from occurring at the joints 11j of the divided road surface step elimination members 111, 112, 113 of the second road surface step elimination member 11B due to the unevenness of the road surface R. More specifically, due to the unevenness of the road surface R, steps may occur at the joints 12j of the two or more raising members 12 arranged side by side on the road surface R. However, the joints 12j of the raising members 12 where steps have occurred and the joints 11j of the divided road surface step elimination members 111, 112, 113 of the second road surface step elimination member 11B installed thereon are offset in the step passing direction Ds.

[0070] Therefore, the steps generated at the joints 12j of the raising members 12 are pushed downward by the bottom surfaces of the individual divided road surface step elimination members 111, 112, 113 and reduced. In addition, the steps generated at the joints 12j of the raising members 12 prevent steps from occurring at the joints 11j of the divided road surface step elimination members 111, 112, 113. Thereby, the stability and safety of the vehicle passing through the step S eliminated by the road surface step elimination unit 1 can be improved. The offset in the step passing direction Ds between the joints 12j of the raising members 12 and the joints 11j of the divided road surface step elimination members 111, 112, 113 may be, for example, 1 cm or more, preferably 5 cm or more, and more preferably larger within an appropriate range such as 10 cm or more, 20 cm or more, or 30 cm or more.

[0071] In addition, in the road surface step elimination unit 1 of the present embodiment, each of the raising members 12 includes a base block 121 made of foamed resin and a surface material 122 provided on the base block 121. A plurality of convex portions 122b or 122c having a height of 5 mm or less are regularly formed on the surface 122a of the surface material 122 which is the upper surface of the raising member. The total area of the portions where the convex portions 122b or 122c are formed on the surface 122a of the surface material 122 is 5% or more of the total area of the surface 122a.

[0072] With such a configuration, in the road surface step elimination unit 1 of the present embodiment, since the raising member 12 includes the base block 121 made of foamed resin, the weight of the raising member 12 can be reduced, facilitating the installation work by the operator and improving the efficiency of the installation work. In addition, the plurality of convex portions 122b or 122c having a height of 5 mm or less regularly formed on the surface 122a of the surface material 122 which is the upper surface of the raising member 12 function as an anti-slip for the surface 122a of the surface material 122.

[0073] Thereby, when the raising members 12 are stacked, the displacement between the upper and lower raising members 12 can be prevented. Further, since the height of the plurality of convex portions 122b or 122c is 5 mm or less, it is possible to prevent an operator working on the raising member 12 from being tripped or slipping, and the work can be carried out stably. Therefore, according to the road surface step elimination unit 1 of the present embodiment, the safety and work efficiency of the installation work by the operator can be improved.

[0074] In addition, in the road surface step elimination unit 1 of the present embodiment, the surface material 122 of the raising member 12 is a rubber mat. Further, the plurality of convex portions 122c on the surface 122a of the surface material 122 are provided in a strip shape extending in a direction intersecting the step passing direction Ds. In the step passing direction Ds, the interval c between two adjacent convex portions 122c of the plurality of convex portions 122c is 80% or more and 120% or less of the width w of each convex portion 122c.

[0075] With such a configuration, the road surface step elimination unit 1 of the present embodiment can further improve the anti-slip function provided by the convex portions 122c provided on the surface 122a of the surface material 122 of the raising material 12. In addition, it is possible to facilitate the discharge of foreign matters such as dust from between the convex portions 122c, prevent clogging between the convex portions 122c, and prevent a decrease in the anti-slip function due to the plurality of strip-shaped convex portions 122c.

[0076] In addition, the road surface step elimination unit 1 of the present embodiment further includes, for example, a hollow flat plate-shaped bridging material 13 made of fiber-reinforced resin, which is disposed on two or more raising materials 12 that are not disposed under the second road surface step elimination material 11B among the plurality of raising materials 12. Further, the road surface step elimination method of the present embodiment disposes the bridging material 13 on two or more raising materials 12 that are not disposed under the second road surface step elimination material 11B among the plurality of raising materials 12. With this configuration, the road surface step elimination unit 1 and the road surface step elimination method of the present embodiment can dispose one end of the bridging material 13 on two or more raising materials 12 disposed on the step S side with respect to the second road surface step elimination material 11B, and dispose the other end of the bridging material 13 on the road surface R above the step S. Thereby, the road surface step elimination unit 1 and the road surface step elimination method of the present embodiment can bridge the bridging material 13 over the opening G in the step passing direction Ds generated between the road surface R below the step S and the road surface R above, so that not only the step S generated on the road surface R but also the opening G generated on the road surface R can be eliminated.

[0077] In addition, in the road surface step elimination unit 1 of the present embodiment, each of the two or more road surface step elimination materials 11 includes a base block 11c made of foamed resin, a load dispersion material 11d, and an appropriate number of reinforcing members 11e. The base block 11c includes at least a bottom surface portion 11c1 and an inclined upper surface portion 11c2 that inclines at a predetermined angle θ with respect to the bottom surface portion 11c1. The load dispersion material 11d is provided on the inclined upper surface portion 11c2 of the base block 11c. The reinforcing members 11e are provided along the inclined direction Dt. The load dispersion material 11d is provided on the base block 11c with the reinforcing members 11e installed on the bottom surface portion 11c1 of the base block 11c. Two or more divided road surface step elimination materials 111, 112, 113 of each road surface step elimination material 11 are joined by a connection mechanism as described above.

[0078] With such a configuration, in the road surface step elimination unit 1 of the present embodiment, the base block 11c made of foamed resin of the road surface step elimination material 11 reduces the weight of the road surface step elimination material 11, and the installation work of the road surface step elimination material 11 can be performed easily and quickly. Further, an inclined surface for eliminating the step S can be formed by the inclined upper surface portion 11c2 of the base block 11c and the load dispersion material 11d provided thereon, and emergency vehicles, freight vehicles, etc. can pass through highways and road bridges where the step S has occurred.

[0079] In addition, the load dispersion material 11d can disperse the load of the vehicle passing over the road surface step elimination material 11 and prevent a concentrated load from acting on the base block 11c made of foamed resin. Also, an appropriate number of reinforcing members 11e can give the road surface step elimination material 11 the required strength.

[0080] Furthermore, two or more divided road surface step elimination materials 111, 112, 113 of each road surface step elimination material 11 are joined by a connection mechanism as described above. Therefore, it is possible to surely prevent the two or more divided road surface step elimination materials 111, 112, 113 from separating due to vibrations when a vehicle passes over the road surface step elimination unit 1 and forces acting in the step passing direction Ds and the width direction Dw.

[0081] As described above, according to the present embodiment, it is possible to eliminate a step S higher than before, improve the stability and safety of a vehicle passing through the eliminated step, and improve the safety and efficiency of installation work by an operator. It is possible to provide a road surface step elimination unit 1. Note that the road surface step elimination unit according to the present disclosure is not limited to the configuration of the road surface step elimination unit 1 of the present embodiment. Hereinafter, with reference to FIGS. 10 to 12, a modified example of the road surface step elimination unit 1 of the present embodiment will be described.

[0082] FIG. 10 is a cross-sectional view showing a modified example 1 of the road surface step elimination unit 1 of FIG. 1. FIG. 11 is a cross-sectional view showing a modified example 2 of the road surface step elimination unit 1 of FIG. 1. In these modified examples, only a step S occurs on the road surface R, and no opening G occurs. In this case, in the road surface step elimination unit 1, all the raising members 12 are disposed under the second road surface step elimination member 11B, and the bridging member 13 is not provided. Further, in the modified example 1 shown in FIG. 10, the plurality of raising members 12 of the road surface step elimination unit 1 are a plurality of second raising members 12B and do not include the first road surface step elimination member 11A.

[0083] Further, in the modified example 2 shown in FIG. 11, the plurality of raising members 12 of the road surface step elimination unit 1 include a plurality of first raising members 12A stacked in three levels vertically adjacent to the first road surface step elimination member 11A, and a plurality of first raising members 12A stacked in three levels vertically adjacent to the step S. Further, in the modified example 2 shown in FIG. 11, the plurality of raising members 12 of the road surface step elimination unit 1 include a plurality of second raising members 12B disposed between the first raising members 12A stacked in three levels vertically on both sides in the step passing direction Ds. The plurality of second raising members 12B are arranged in two rows in the step passing direction Ds and stacked in three levels vertically.

[0084] According to the road surface step elimination unit 1 of these modification examples 1 and 2, similar to the road surface step elimination unit 1 of the aforementioned embodiment, it can eliminate a step S higher than before, improve the stability and safety of a vehicle passing through the eliminated step, and can also improve the safety and efficiency of the installation work by workers.

[0085] FIG. 12 is a cross-sectional view showing a modification example 3 of the road surface step elimination unit 1 in FIG. 1. In the road surface step elimination unit 1 of this modification example 3, the bridging material 13 is also arranged between the first road surface step elimination material 11A and the second road surface step elimination material 11B. That is, in the road surface step elimination method of this modification example 3, the bridging material 13 is arranged between the first road surface step elimination material 11A and the second road surface step elimination material 11B. More specifically, the road surface step elimination unit 1 of modification example 3 further includes two or more lifting materials 12 and a bridging material 13 arranged thereon between the first road surface step elimination material 11A and the second road surface step elimination material 11B and a lifting material 12 arranged thereunder.

[0086] In the example shown in FIG. 12, the first lifting material 12A and the second lifting material 12B are alternately arranged in the step passing direction Ds on the road surface R between the first road surface step elimination material 11A and the second road surface step elimination material 11B, and a total of four lifting materials 12 are arranged in the step passing direction Ds. Further, the four lifting materials 12 arranged in this step passing direction Ds are stacked in three levels vertically. The bridging material 13 is arranged on the 12 lifting materials 12 arranged and stacked on this road surface R and is arranged between the first road surface step elimination material 11A and the second road surface step elimination material 11B.

[0087] According to the road surface step elimination unit 1 of modification example 3, a flat surface can be formed between the inclined surface of the first road surface step elimination material 11A and the inclined surface of the second road surface step elimination material 11B by two or more lifting materials 12 and a bridging material 13 installed thereon. Therefore, according to the road surface step elimination unit 1 of modification example 3, the gradient formed by the road surface step elimination unit 1 can be made gentle, and the passage of a large vehicle with a low vehicle height such as a tank truck can be facilitated.

[0088] In addition, in the road surface step elimination unit 1 of Modification 3, the bridging material 13 disposed between the first road surface step elimination material 11A and the second road surface step elimination material 11B may be omitted. In this case, the vehicle passes over two or more raising members 12 disposed between the first road surface step elimination material 11A and the second road surface step elimination material 11B. Therefore, the surface material 122 of the raising member 12 may be formed of the same material as the load dispersing material 11d of the road surface step elimination material 11, and may be provided with an anti-slip process similar to the surface of the load dispersing material 11d.

[0089] As described above, the embodiments and modifications of the road surface step elimination unit according to the present disclosure have been described in detail with reference to the drawings. However, the specific configuration is not limited to these embodiments and modifications, and even if there are design changes and the like without departing from the gist of the present disclosure, they are included in the present disclosure.

[0090] [Evaluation of Raising Member] The evaluation of the raising member of the road surface step elimination unit was carried out according to the following procedure. First, a comparative example raising member that is only a foam resin base block without a surface material was prepared. Next, a raising member of Example 1 in which a flat rubber mat having no convex portion as a surface material was joined on the foam resin base block was prepared. Also, on the foam resin base block, raising members of Example 2 and Example 3 in which a rubber mat having a plurality of diamond-shaped circular convex portions and a rubber mat having a plurality of strip-shaped convex portions were joined as surface materials, respectively, were prepared.

[0091] In the raising members of Example 2 and Example 3, the height of the convex portion of the surface material was 1.6 mm. Also, in the raising member of Example 2, the total area of the portions where the circular convex portions were formed on the surface of the surface material was 6.5% of the total area of the surface of the surface material. Further, in the raising member of Example 3, the total area of the portions where the strip-shaped convex portions were formed on the surface of the surface material was 51% of the total area of the surface of the surface material.

[0092] As shown in Fig. 1, the pavement step elimination units using a plurality of raising materials of the above comparative examples and Examples 1 to 3 were installed together with two pavement step elimination materials and a bridging material so as to eliminate the steps and gaps formed on the pavement. Thereafter, for the raising materials used in each pavement step elimination unit, running performance verification, wear resistance verification, and workability verification were carried out by the following methods.

[0093] (Running performance verification) After passing five work vehicles (4-ton trucks) over the pavement step elimination unit, the gap generated at the joint of the raising material is measured. If this gap is 2 mm or less, it is considered qualified.

[0094] (Wear resistance verification) The installation and removal of the pavement step elimination unit are repeated five times to check for damage to the surface of the raising material. No damage is considered qualified.

[0095] (Workability verification) During rainy days, the installation and removal of the pavement step elimination unit are repeated five times to check the evaluation of workability by the operator. If there is no problem with workability, it is considered qualified.

[0096] For the raising material of the comparative example with only a foamed resin-based foundation block without a surface material and the raising material of Example 1 using a flat rubber mat without convex portions as the surface material, a gap of 3 mm or more occurred in the running performance verification. Also, for these raising materials of the comparative example and Example 1, in the workability verification, the feet of the workers slipped, and there were problems with workability.

[0097] Also, for the raising material of the comparative example with only a foamed resin-based foundation block without a surface material, chipping occurred on the surface in the wear resistance verification, but for the raising material of Example 1 using a flat rubber mat as the surface material, damage to the foundation block could be prevented. Also, for the raising material of Example 2 using a rubber mat having a plurality of circular convex portions arranged in a zigzag pattern as the surface material, all the verification results of running performance verification, wear resistance verification, and workability verification were good.

[0098] Furthermore, the leveling material of Example 3 using a rubber mat having a plurality of rib-shaped convex portions as the surface material obtained good results similar to those of the leveling material of Example 2 in the abrasion resistance verification. Also, the leveling material of Example 3 obtained better results compared to the leveling material of Example 2 in the running performance verification and the workability verification.

Explanation of Signs

[0099] 1 Road surface step elimination unit 11 Road surface step elimination material 111 Divided road surface step elimination material 112 Divided road surface step elimination material 113 Divided road surface step elimination material 11A First road surface step elimination material 11B Second road surface step elimination material 11a Upper surface 11b Bottom surface 11c Base block 11c1 Bottom part 11c2 Inclined upper surface part 11c7 Notch recess (connection mechanism) 11c8 T-shaped locking projection (connection mechanism) 11c9 Notch recess (connection mechanism) 11c10 T-shaped locking groove (connection mechanism) 11d Load distribution material 11e Reinforcing member 11j Joint 12 Leveling material 121 Base block 122 Surface material 122a Surface 122b Convex portion 122c Convex portion 12j Joint 13 Transition material c Spacing Ds Step passing direction Dt Inclination direction h Height R Road surface S Step w Width θ Angle

Claims

1. A road surface step elimination unit for eliminating steps formed on a road surface, comprising: two or more road surface step elimination materials with an upper surface inclined at a predetermined angle with respect to a bottom surface, and a plurality of flat raising materials; each of the road surface step elimination materials is divided into two or more divided road surface step elimination materials in the inclination direction of the upper surface; among the two or more road surface step elimination materials, a first road surface step elimination material is installed on the road surface at a position farthest from the step in accordance with the inclination direction and the step passing direction in which the vehicle passes through the step; among the plurality of raising materials, two or more raising materials are arranged side by side on the road surface adjacent to the first road surface step elimination material in the step passing direction; among the two or more road surface step elimination materials, a second road surface step elimination material is installed on the two or more raising materials adjacent to the first road surface step elimination material in accordance with the inclination direction and the step passing direction; each of the raising materials includes a base block made of foamed resin and a surface material provided on the base block; a plurality of convex portions with a height of 5 mm or less are regularly formed on the surface of the surface material which is the upper surface of the raising material; the total area of the portions of the surface of the surface material where the convex portions are formed is 5% or more of the total area of the surface. A road surface step elimination unit characterized by the above.

2. The dimensions of each of the raising materials in the step passing direction among the plurality of raising materials are different from the dimensions of each of the divided road surface step elimination materials in the step passing direction among the two or more divided road surface step elimination materials, and the joints of the two or more raising materials arranged under the second road surface step elimination material and the joints of the two or more divided road surface step elimination materials of the second road surface step elimination material are offset in the step passing direction. The road surface step elimination unit according to Claim 1, characterized by this.

3. The surface material of the raising material is a rubber mat, the plurality of convex portions are provided in a strip shape extending in a direction intersecting the step passing direction, and the interval between two adjacent convex portions among the plurality of convex portions in the step passing direction is 80% or more and 120% or less of the width of each convex portion. The road surface step elimination unit according to Claim 1, characterized by this.

4. The road surface step elimination unit according to any one of claims 1 to 3, further comprising a bridging material made of fiber-reinforced resin, which is disposed on two or more raising materials among the plurality of raising materials and is not disposed under the second road surface step elimination material.

5. The road surface step elimination unit according to claim 4, wherein the bridging material is disposed between the first road surface step elimination material and the second road surface step elimination material.

6. A road surface step elimination method for eliminating a step generated on a road surface, The road surface step elimination method includes: two or more road surface step elimination materials, the upper surface of which is inclined at a predetermined angle with respect to the bottom surface, and a plurality of flat raising materials, and each of the road surface step elimination materials uses a road surface step elimination unit divided into two or more divided road surface step elimination materials in the inclination direction of the upper surface, Among the two or more road surface step elimination materials, a first road surface step elimination material is installed on the road surface at a position farthest from the step in accordance with the inclination direction, with the vehicle passing through the step in the step passing direction, Among the plurality of raising materials, two or more raising materials are arranged side by side on the road surface adjacent to the first road surface step elimination material in the step passing direction, Among the two or more road surface step elimination materials, a second road surface step elimination material is installed on the two or more raising materials adjacent to the first road surface step elimination material in accordance with the inclination direction in the step passing direction, Each of the raising materials includes a base block made of foamed resin and a surface material provided on the base block, A plurality of convex portions having a height of 5 mm or less are regularly formed on the surface of the surface material, which is the upper surface of the raising material, The total area of the portions of the surface of the surface material where the convex portions are formed is 5% or more of the total area of the entire surface. This is a road surface step elimination method characterized by this.

7. The road surface step elimination method according to claim 6, wherein a bridging material is disposed on two or more raising materials among the plurality of raising materials and is not disposed under the second road surface step elimination material.

8. The road surface step elimination method according to claim 7, wherein the bridging material is disposed between the first road surface step elimination material and the second road surface step elimination material.

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