JP3246215U - approach block - Google Patents

Abstract

[Problem] To provide an access block that can prevent tire punctures even if a driver of a car does not notice the existence of the access block and rubs his/her tire against the edge of the access block. [Solution] The access block 100 is formed with a slope 20 that eliminates or reduces the step caused by the difference in height between the road surface height of the road D and the height of the entrance part of the road adjacent area DR, and is characterized in that at least one end of the slope 20 in the width direction is formed with a second slope 50 that is continuous with the slope 40 and the height position of the road adjacent area DR. [Selected Figure] Figure 2

Description

This invention relates to an access block, and more specifically, to an access block that is arranged between a road and an adjacent area that is adjacent to the road and at a different height from the road surface, and that is intended to reduce the impact that occurs when vehicles travel between the road and the adjacent area.

Entry blocks that allow vehicles, such as automobiles, to travel between roads and adjacent areas that are at a different height from the road surface are widely known. An example of an entry block that has been proposed in the past is one with a configuration such as that disclosed in Patent Document 1 (JP Patent Publication No. 2003-293308). Specifically, this entry block has anti-slip protrusions made of yellow-colored rubber material that are arranged on the slope where vehicles enter, making them less slippery and more noticeable.

JP 2003-293308 A

The approach block disclosed in Patent Document 1 uses a rubber material colored yellow to improve visibility, but the entire approach block is not colored yellow, and visibility from the vehicle driver is poor. This is not sufficient, and there is a problem that the presence of the entry block may not be noticed and the tire of the vehicle may rub against the edge of the entry block, resulting in a tire blowout.

Therefore, the purpose of this invention is to provide an approach block that can prevent tire punctures even if the driver of a vehicle does not notice the presence of the approach block and rubs the vehicle's tire against the edge of the approach block.

In order to solve the above problems, the present inventor conducted intensive research and came up with the following configuration. That is, an approach block is formed with an inclined surface that eliminates or alleviates a level difference caused by a difference in height between the road surface height and the entrance portion of an area adjacent to the road, and at least one end in the width direction of the inclined surface. The approach block is characterized in that a second inclined surface is formed at a height of the inclined surface and the area adjacent to the road.

Thereby, even if the driver of the vehicle rubs the tire of the vehicle against the end of the approach block without noticing the presence of the approach block, it is possible to prevent the tire from going flat.

Further, it is preferable that a reflecting plate is embedded in the second inclined surface.

This makes it easier for the driver of the vehicle to notice the presence of the approach block, and reduces the risk of the vehicle's tires rubbing against the end of the approach block.

Further, a plurality of convex portions are arranged on the inclined surface at predetermined intervals along the inclined surface, and a plurality of convex portions are arranged on the second inclined surface at the same spacing as the convex portions formed on the inclined surface. It is preferable that the convex portion is formed with.

This makes it possible to prevent the vehicle's tires from slipping on slopes when driving from the road into an area adjacent to the road, even in rainy or snowy weather.

By adopting the configuration according to the present invention, there is no exposed edge at the end of the approach block that could cause a puncture of the vehicle's tires, so the driver of the vehicle does not notice the existence of the approach block. Even if a vehicle tire rubs against the edge of the approach block, tire puncture can be prevented.

It is a front view of the approach block in this embodiment. It is a top view of the approach block in this embodiment. 3 is a sectional view taken along line III-III in FIG. 2. FIG. FIG. 3 is a right side view of the approach block in use in this embodiment. FIG. 11 is a plan view showing a modified example of the entrance block according to the present invention. It is a top view which shows the modification of the approach block concerning this invention.

As shown in FIGS. 1 to 4, the approach block 100 in this embodiment includes a road side standing portion 10 that stands up at a required height from the road surface RM of the road D, and an entrance to the road adjacent area DR from the road surface RM of the road D. A road-adjacent area-side upright part 20 formed higher than the road-side upright part 10 that stands up to the height of the road-adjacent area DR, and a top surface formed at the same height as the entrance part of the road-adjacent area DR. 30, and an inclined surface 40 connecting the upper end of the road side upright portion 10 and the top surface 30. Although a lattice body made of reinforcing bars 90 is embedded in the bottom surface of the approach block 100 in this embodiment, a cage body formed of the reinforcing bars 90 can also be embedded following the cross-sectional shape of the approach block 100. The height of the road side upright portion 10 is not particularly limited, but is preferably about 100 mm.

Such an approach block 100 is arranged between the road D and the road adjacent area DR located at a different height from the road surface RM of the road D, and is designed to prevent a step caused by a height difference between the road D and the road adjacent area DR. It is intended to eliminate or alleviate the An example of such a road adjacent area DR is cultivated land such as a field, but the road adjacent area DR is not limited to cultivated land.

Further, a second inclined surface 50 is formed on at least one of the ends of the approach block 100 in the width direction. In the approach block 100 in this embodiment, the second inclined surface 50 is formed only at the right end portion of the approach block 100. This is because the approach block 100 in this embodiment is arranged at the right end position of another approach block 100 (not shown). Therefore, when the approach block 100 is disposed at the left end position of another approach block 100 (not shown), the second inclined surface 50 is formed at the left end portion of the approach block 100. Furthermore, when one approach block 100 is used, second inclined surfaces 50 are formed at both ends of the approach block 100 in the width direction. The second inclined surface 50 in this embodiment eliminates the level difference caused by the height difference between the upper edge of the road side upright portion 10 and the top surface 30 at the right end of the approach block 100. In the approach block 100 in this embodiment, the portion where the upper end edge of the road side upright portion 10 intersects with the inclined surface 40 and the second inclined surface is dot-shaped, and a predetermined range including this dot-shaped portion is It is also possible to adopt a form formed into a curved surface.

In this embodiment, multiple protrusions 60 are arranged on the inclined surface 40 of the entry block 100. The protrusions 60 are erected at multiple locations at a predetermined interval across the entire range of the inclined surface 40. The planar shape of the protrusions 60 in this embodiment is rectangular, but the planar shape of the protrusions 60 is not particularly limited. The arrangement of the protrusions 60 on the inclined surface 40 can also be omitted.

By using the approach block 100 having such a configuration, when driving a car from the road D into the road adjacent area DR, the vehicle such as a car can enter the frontage of the road adjacent area DR at an approach angle of a predetermined angle or more. In this case, the same feeling of use as the conventional technology can be obtained. In addition, if the vehicle driver does not notice the existence of the approach block 100, or if the vehicle enters at an angle less than a predetermined angle with respect to the frontage of the road adjacent area DR, the vehicle tires may By riding on the slope 50, the tire is prevented from going flat. Moreover, it is advantageous in that the impact when riding on the approach block 100 can be alleviated.

Further, FIG. 5 shows a modification of the approach block 100 according to the present invention. The approach block 100 shown in FIG. 5 has a plurality of second inclined surfaces 50 formed at at least one end in the width direction, which extend from the upper edge of the road side upright portion 10 to the inclined surface 40 and the top surface 30. This configuration is different from the configuration of the previous embodiment. As shown in FIG. 5, each second inclined surface 50 is provided with a convex portion 60 having the same shape as the convex portion 60 provided on the inclined surface 40. As shown in FIG. According to the approach block 100 in this modification, the edge angle of the edge portion formed by the boundary line between the second slope surfaces 50 or between the second slope surface 50 and the slope surface 40 can be increased. It is possible to prevent a puncture of a vehicle tire even if the tire is left unused.

Further, FIG. 6 shows a modification of the approach block 100 according to the present invention. The approach block 100 shown in FIG. 6 differs in configuration from the above embodiment in that a reflection plate 70 is embedded in the second inclined surface 50. The configuration of the second inclined surface 50 in which the reflective plate 70 is embedded in this manner is advantageous in that the existence of the approach block 100 can be emphasized to the driver of the vehicle. Particularly at night, the reflection plate 70 reflects the light from the vehicle's lights, which greatly improves the alertness of the vehicle driver and enables safer vehicle passage.

Although the approach block 100 according to the present invention has been described above based on the embodiments, the present invention is not limited to the above embodiments. For example, in the above embodiment, the top surface 30 is formed at the same height position as the entrance portion of the road adjacent area DR, but the height position of the top surface 30 is It does not have to be at the same height as the height position at the entrance of the road adjacent area DR. Further, although the top surface 30 in this embodiment is formed as a horizontal surface, the top surface 30 may not be a horizontal surface, and the specific shape of the top surface 30 is not particularly limited.

Further, it is also possible to adopt a form of the approach block 100 in which at least one of the road side upright portion 10 and the top surface 30 is not substantially formed. In particular, in the approach block 100 in which the road side upright part 10 is not formed, the portion where the road side upright part 10 intersects with the slope 40 and the second slope 50 is located near the road surface RM of the road D. Therefore, it is advantageous in that it is possible to prevent tire punctures of the vehicle without forming a predetermined range including the intersection of the road side upright portion 10, the inclined surface 40, and the second inclined surface 50 into a curved surface. It is. Further, by omitting the road side upright portion 10, it is possible to eliminate the level difference caused by the height difference between the road surface RM height of the road D and the height at the entrance portion of the road adjacent area DR.

Furthermore, it is also possible to adopt a mode in which the modifications described in the above embodiments are combined as appropriate.

10: Road side standing portion 20: Road adjacent area side standing portion 30: Top surface 40: Inclined surface 50: Second inclined surface 60: Convex portion 70: Reflector plate 90: Rebar 100: Approach block D: Road DR: Road adjacent Area RM: Road surface

Claims (3)

An approach block formed with an inclined surface that eliminates or alleviates the level difference caused by the height difference between the road surface height and the height at the entrance part of the area adjacent to the road,
An approach block characterized in that a second slope is formed at at least one end in the width direction of the slope, the second slope continuing at a height position of the slope and the area adjacent to the road. The approach block according to claim 1, wherein a reflective plate is embedded in the second inclined surface. A plurality of protrusions are arranged on the inclined surface at predetermined intervals along the inclined surface, and a plurality of protrusions are arranged on the second inclined surface at the same intervals as the protrusions formed on the inclined surface. The approach block according to claim 1 or 2, characterized in that a convex portion is formed.

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