JP7028427B2 - Road block unit and road block cover - Google Patents

Description

The present invention relates to a road block unit and a road block cover installed on a road as a Braille block or the like.

Patent Document 1 discloses, as an example of a road block unit, a Braille guiding block including a concrete substrate and a flexible plastic cover over the substrate. A plurality of such road block units are connected and installed via joint portions having a predetermined width (generally about 3 mm). However, with the conventional road block unit, there is a problem in the workability of installation, such as it is difficult to secure a joint portion having a predetermined width.

Japanese Unexamined Patent Publication No. 2001-81742

An object to be solved by the present invention is to provide a road block unit and a road block cover that are effective for improving the workability of installation.

According to one aspect of the present invention, the following road block units are provided.
"A road block unit comprising a resin cover having a square or rectangular box shape in plan view and a concrete block joined within the cover.
The four outer surfaces formed on the four side walls of the cover,
Multiple ridges extending horizontally on each of the two outer surfaces of the four outer surfaces,
Each of the remaining two outer surfaces of the four outer surfaces has a groove provided so as to be continuous over the entire horizontal direction.
The vertical height positions of the plurality of ridges are substantially the same as the vertical height positions of the grooves.
The vertical thickness of the plurality of ridges is smaller than the vertical width of the groove.
The length of protrusion from the outer surface of the plurality of ridges is larger than the depth of the groove.
A road block unit in which a joint portion is formed between facing outer surfaces by fitting the facing ridges and the grooves when adjacent road block units are connected. "

This road block unit can be easily connected to the adjacent road block unit by fitting the ridges and grooves of the adjacent road block units when a plurality of road block units are connected and installed. Moreover, since the protruding length from the side wall of the ridge is larger than the depth of the groove, if the adjacent road block units are connected as described above, it corresponds to the difference between the protruding length of the ridge and the depth of the groove between them. A gap (joint portion) having a width is inevitably generated. That is, by adjusting the difference between the protruding length of the ridge and the depth of the groove, it is possible to easily secure a joint portion having a predetermined width (constant width).
Further, since the groove is continuous over the entire horizontal direction, the ridge can be continuously slid in the horizontal direction along the groove. As a result, the adjacent road block unit can be easily adjusted to an arbitrary position in the horizontal direction.
Further, by fitting the ridge extending in the horizontal direction with the groove, it is possible to stably maintain the connected state with the adjacent road block unit. As a result, the road block unit can be neatly installed (laid) even by a non-skilled worker.

In the road block unit of the present invention, it is preferable that a plurality of ridges are provided on each of the outer surfaces of two adjacent side walls of the four side walls, and grooves are provided on each of the outer surfaces of the remaining two side walls. .. As a result, even if the road block unit has a direction, a plurality of road block units can be connected and installed in a row along the direction by using only one type of road block unit, and the direction can be set in the middle. It is also possible to change the sex by 90 degrees.

In the road block unit of the present invention, it is preferable that the height positions of the plurality of ridges and grooves in the vertical direction are substantially the center of the four side wall portions in the vertical direction. As a result, the fitted state between the ridge and the groove (the connected state of the adjacent road block units) becomes more stable.

The road block unit of the present invention has a plurality of ridges, a first ridge at a substantially central portion in the horizontal direction, a second ridge at one end in the horizontal direction, and a third ridge at the other end in the horizontal direction. Can have. As a result, the fitted state between the ridge and the groove (the connected state of the adjacent road block units) is further stabilized.

The distance between the first and second ridges and the distance between the first and third ridges is preferably greater than the horizontal length of the first ridge. .. These spaced portions serve as filling ports when filling joints between adjacent road block units, and the horizontal length of these spaced portions is larger than the horizontal length of the first ridge. As a result, the filling work of the joint material becomes easy, and since the joint material spreads over the entire joint portion, the strength of the joint portion after filling the joint material is improved.

The horizontal length of the second and third ridges is approximately half the horizontal length of the first ridge, in other words the horizontal length of the first ridge is the second. It can be approximately twice the horizontal length of the ridge and the third ridge. When a plurality of road block units are connected and installed in a staggered manner, the first protrusion is fitted so as to straddle the respective grooves of the two adjacent road block units. At this time, the first protrusion is used. If the horizontal length of the ridges is approximately twice the horizontal length of the second and third ridges, then the mating balance of each ridge and groove in each road block unit. Will improve, and the connected state of adjacent road block units will be stable.

In the road block unit of the present invention, it is preferable that the thickness of the two side wall portions provided with the grooves among the four side wall portions of the cover is larger than the thickness of the remaining two side wall portions. It is possible to compensate for the decrease in strength of the side wall portion due to the provision of the groove.

Further, according to one aspect of the present invention, the following road block covers are provided.
"A road block cover with a square or rectangular box shape in plan view.
The four outer surfaces formed on the four side walls,
Multiple ridges extending horizontally on each of the two outer surfaces of the four outer surfaces,
Each of the remaining two outer surfaces of the four outer surfaces has a groove provided so as to be continuous over the entire horizontal direction.
The vertical height positions of the plurality of ridges are substantially the same as the vertical height positions of the grooves.
The vertical thickness of the plurality of ridges is smaller than the vertical width of the groove.
The length of protrusion from the outer surface of the plurality of ridges is larger than the depth of the groove.
A road block cover in which joints are formed between facing outer surfaces by fitting the facing protrusions and the grooves when adjacent road block covers are connected. "
By joining a concrete block into the road block cover, the road block unit of the present invention described above can be obtained.

According to the present invention, the workability of installing a road block unit is improved, and a good installation state can be easily realized.

A road block unit (guidance block) according to an embodiment of the present invention is shown, (a) is a plan view, (b) is a left side view, (c) is a right side view, and (d) is a front view. e) is a cross-sectional view taken along the line AA of (a). It is a top view which shows the road block unit (warning block) which is another embodiment of this invention. It is a top view which shows the installation example of the guide block of FIG. It is a top view which shows the installation example of the warning block of FIG.

1A and 1B show a road block unit according to an embodiment of the present invention, (a) is a plan view, (b) is a left side view, (c) is a right side view, and (d) is a front view. , (E) are sectional views taken along the line AA of (a).

The road block unit shown in FIG. 1 is a guidance block for guiding the traveling direction (walking direction) among the visually impaired guiding blocks (Braille blocks) installed on sidewalks, station platforms, and the like. .. The guide block 10A includes a resin cover 20 having a square plan view and a concrete block 30 joined in the cover 20. In the following description, "up and down" means up and down in a state where the guidance block 10A is installed on the road surface.

The cover 20 includes a thin plate-shaped main body portion 21 that covers the upper surface of the block 30, and four side wall portions 22a to d that cover the side surfaces of the block 30, and has a box-like shape as a whole. A plurality of linear protrusions 23a are provided in parallel on the upper surface of the main body 21 so that a visually impaired person can recognize the traveling direction via a cane, the sole of the foot, or the like. That is, the guiding block 10A has a direction in the extending direction of the linear protrusion 23a. On the other hand, a plurality of convex portions (pins) 24 are scattered on the lower surface of the main body portion 21. Each of these plurality of convex portions 24 is wrapped in the block 30 by filling the cover 20 with concrete. As a result, the block 30 is firmly joined in the cover 20. It is also possible to simply join the block 30 inside the cover 20 without providing the convex portion 24.

Of the four side wall portions 22a to d of the cover 20, the outer surfaces of the two adjacent side wall portions 22a and 22b are provided with the first to third ridges 25a to 25 as ridges extending in the horizontal direction. Specifically, a first ridge 25a is provided at a substantially central portion of the side wall portions 22a and 22b in the horizontal direction, a second ridge 25b is provided at one end in the horizontal direction, and a third ridge 25c is provided at the other end in the horizontal direction. Has been done. The height positions (height levels) of these ridges 25a to 25c in the vertical direction (vertical direction) are substantially the same, and in the present embodiment, they are substantially the center of the side wall portions 22a and 22b in the vertical direction. Further, the horizontal lengths of the second ridge 25b and the third ridge 25c are substantially the same, which is approximately half the horizontal length of the first ridge 25a. Further, the distance L1 between the first ridge 25a and the second ridge 25b and the distance L1 between the first ridge 25a and the third ridge 25c are substantially the same, and these distances. L1 and L1 are larger than the horizontal length L2 of the first ridge 25a.

Of the four side wall portions 22a to d of the cover 20, each of the outer surfaces of the remaining side wall portions 22c and 22d is provided with a groove 26 continuous over the entire horizontal direction. The groove 26 can be fitted with the ridges 25a to 25c of the adjacent guiding blocks 10A when a plurality of guiding blocks 10A are connected and installed. That is, the vertical height position of the groove 26 is substantially the same as the vertical height position of the ridges 25a to 25, and the vertical width of the groove 26 is larger than the vertical thickness of the ridges 25a to c. .. As an example, the vertical width of the groove 26 is 5 mm, and the vertical thickness of the ridges 25a to 25c is 4 mm. Further, in the present embodiment, the height position of the lower surface of the groove 26 in the vertical direction is designed to be the same as the height position of the lower surface of the ridges 25a to 25c in the vertical direction. Therefore, in the present embodiment, the vertical center height position of the groove 26 and the vertical center height position of the ridges 25a to 25c are not completely the same, but the groove 26 and the ridges 25a to 25c are guide blocks. It can be fitted when a plurality of 10A are connected and installed. That is, the vertical height position of the ridge and the vertical height position of the groove are "substantially the same", which means that they can be fitted when a plurality of guide blocks (road block units) are connected and installed. If so, it means that they are substantially the same. Other terms such as "substantially the same", "substantially center", and "substantially half" also mean that they are substantially the same, center, and half if they can achieve the intended effect. Of course, "abbreviation" includes the range of variation at the error level.

Continuing to explain the relationship between the shapes of the ridges 25a to 25c and the groove 26, the protrusion lengths of the ridges 25a to 25c from the side wall portions 22a to d are substantially the same, and this protrusion length is the depth of the groove 26. Greater than Therefore, when the ridges 25a to 25c of the adjacent guide blocks 10A and 10A and the groove 26 are fitted, the protrusion length of the ridges 25a to 25 and the depth of the groove 26 are formed between the adjacent guide blocks 10A and 10A. A gap (joint portion) having a width corresponding to the difference between the two is inevitably generated. As an example, when the protrusion length of the ridges 25a to 25c is 6 mm and the depth of the groove 26 is 3 mm, a joint portion having a width of 3 mm is formed between the adjacent guide blocks 10A and 10A. By making the protruding length of the ridges 25a to 25c larger than the depth of the groove 26 in this way, the adjacent guides can be guided only by fitting the ridges 25a to 25c of the adjacent guide blocks 10A and 10A and the groove 26. A joint portion having a constant width (predetermined width) can be easily secured between the blocks 10A and 10A.

The thickness (t2) of the two side wall portions 22c and 22d provided with the groove 26 is larger than the thickness (t1) of the two side wall portions 22a and 22b provided with the ridges 25a to 25c. This makes it possible to compensate for the decrease in strength of the side wall portions 22c and 22d due to the provision of the groove 26. As an example, the thickness (t1) of the side wall portions 22a and 22b is 3 mm, and the thickness (t2) of the side wall portions 22c and 22d is 4.5 mm.

FIG. 2 shows a road block unit according to another embodiment of the present invention in a plan view. The road block unit shown in the figure is a warning block for indicating the position of a dangerous place or a facility to be guided among the blocks for guiding visually impaired persons (Braille blocks). The configuration of the warning block 10B is the same as the configuration of the guidance block 10A of FIG. 1 except that a punctate projection 23b is provided on the upper surface of the main body 21 in place of the linear projection 23a (see FIG. 1). Is. Since the arrangement of the punctate protrusions 23b in the warning block 10B has no directionality, the warning block 10B itself has no directionality.

Specific examples of the resin material constituting the cover 20 of the induction block 10A and the warning block 10B include a thermoplastic resin. Examples of the thermoplastic resin include ABS resin (acrylonitrile, butadiene, styrene copolymer synthetic resin), polypropylene, polycarbonate, olefin elastomer, styrene elastomer and the like. Specific examples of the concrete material constituting the block 30 include cement concrete, resin concrete, and resin concrete. For the resin concrete, an elastic aggregate such as a rubber aggregate may be used. The convex portion 24 of the cover 20 can be obtained by primary molding by injection molding or the like and then adjusting the shape of the convex portion 24 (secondary molding) with a trowel or the like. Then, an uncured concrete material is filled in the cover 20 (the space formed by the main body portion 21 and the four side wall portions 22a to d), and the induction block 10A and the warning block 10B can be manufactured by curing the uncured concrete material. ..

FIG. 3 shows an installation example of the guidance block 10A. As described above, the guiding block 10A has a directionality in the extending direction of the linear protrusion 23a, but has ridges 25a to 25c on two adjacent side wall portions 22a and 22b among the four side wall portions 22a to d, and the rest. Since the two side wall portions 22c and 22d are configured to have grooves 26, as shown in FIG. 3, a plurality of guide blocks 10A of one type can be connected and installed in a row along the direction thereof. It is possible, and the direction can be changed by 90 degrees via the warning block 10B on the way. Further, in connecting the adjacent guide blocks 10A and 10A or the warning block 10B, the protrusions 25a to 25c on one side and the groove 26 on the other side can be easily connected by simply fitting them. Moreover, since the protruding length of the ridges 25a to 25c is larger than the depth of the groove 26, when the adjacent road block units 10A and 10A or the warning block 10B are connected, the protruding length of the ridges 25a to 25 and the groove 26 are connected between them. A gap (joint portion 40) having a width W corresponding to the difference from the depth of is inevitably generated. That is, by adjusting the difference between the protruding lengths of the ridges 25a to 25c and the depth of the groove 26, it is possible to easily secure a joint portion having a predetermined width (constant width).

Further, by fitting the ridges 25a to 25c extending in the horizontal direction with the groove 26, the connected state of the adjacent guide blocks 10A and 10A or the warning block 10B can be stably maintained. Further, the guide block 10A has, as a plurality of ridges, a first ridge 25a at a substantially central portion in the horizontal direction, a second ridge 25b at one end in the horizontal direction, and a third ridge 25c at the other end in the horizontal direction. By having these ridges 25a to 25 fitted to the groove 26, the connected state of the adjacent guide blocks 10A and 10A or the warning block 10B can be maintained more stably. That is, by fitting the ridges 25a to 25c into the groove 26, even if an external force in the vertical or diagonal direction acts on the adjacent guiding blocks 10A, 10A or the warning block 10B, the adjacent guiding blocks 10A, The connected state of 10A or the warning block 10B can be stably maintained. Moreover, since the height position of the ridges 25a to 25c in the vertical direction is substantially at the center of the four side wall portions 22a to d in the vertical direction, the ridges 25a to 25c and the groove 26 are in a fitted state (adjacent guide blocks). The connected state of 10A, 10A or the warning block 10B) becomes more stable.

The joint portion 40 formed by connecting the adjacent guide blocks 10A and 10A or the warning block 10B is filled by injecting a joint material such as mortar or joint sand. Here, as described with reference to FIG. 1, the distance L1 between the first ridge 25a and the second ridge 25b and the distance L1 between the first ridge 25a and the third ridge 25c are set. It is larger than the horizontal length L2 of the first ridge 25a. These intervals L1 and L1 are filling ports when the joint material is filled in the joint portion 40 between the adjacent guide blocks 10A and 10A or the warning block 10B, but the horizontal lengths of the ridges 25a to 25c are long. When the distances L1 and L1 are large, that is, the amount of the joint material is small, the joint material is less likely to be filled below the ridges 25a to 25c, and the joint strength after the joint material is filled is lowered. The connected state of the adjacent induction blocks 10A and 10A or the warning block 10B may become unstable. However, since the horizontal length of the intervals L1 and L1 is larger than the horizontal length (L2) of the first ridge 25a, the filling work of the joint material becomes easy and the joint material is the joint portion 40. Since it is distributed throughout, the strength of the joint after filling the joint material is improved.

FIG. 4 shows an installation example of the warning block 10B. In this installation example, the warning blocks 10B are connected and installed in a staggered manner. When the warning blocks 10B are connected in a staggered manner in this way, the first ridge 25a of one warning block 10B is fitted so as to straddle the respective grooves 26 of the two adjacent warning blocks 10B and 10B. At this time, since the horizontal length of the first ridge 25a is approximately twice the horizontal length of the second ridge 25b and the third ridge 25c, each ridge in each warning block 10B. The balance of fitting between 25a to c and the groove 26 is improved, and the connected state of the adjacent warning blocks 10B and 10B is stabilized.

Further, since the groove 26 is continuous over the entire length in the horizontal direction, the ridges 25a to 25c can be continuously slid in the horizontal direction along the groove 26. Thereby, when the warning blocks 10B are connected in a staggered manner as shown in FIG. 4, the horizontal positions of the adjacent warning blocks 10B and 10B can be easily adjusted.

As mentioned above, the installation examples of the guidance block 10A and the warning block 10B are shown in FIGS. 3 and 4, but of course, the installation examples are not limited to these. For example, the guidance block 10A can be connected and installed in a staggered manner as shown in FIG. 4, or the guidance block 10A and the warning block 10B can be installed in combination.

Further, although the guide block 10A and the warning block 10B have a square shape in a plan view, the same effect can be obtained even if the guide block 10A and the warning block 10B have a rectangular shape. Further, the road block unit of the present invention can be applied not only to Braille blocks (guidance blocks or warning blocks) but also to decorative blocks installed on sidewalks and the like.

10A guidance block (road block unit)
20 cover (road block cover)
21 Main body 22a to d Side wall 23a Linear protrusion 23b Pointed protrusion 24 Convex 25a to c First to third ridges (ridges)
26 Groove 30 Block 40 Joint

Claims (14)

A road block unit comprising a resin cover having a square or rectangular box shape in plan view and a concrete block joined within the cover.
The four outer surfaces formed on the four side walls of the cover,
Multiple ridges extending horizontally on each of the two outer surfaces of the four outer surfaces,
Each of the remaining two outer surfaces of the four outer surfaces has a groove provided so as to be continuous over the entire horizontal direction.
The vertical height positions of the plurality of ridges are substantially the same as the vertical height positions of the grooves.
The vertical thickness of the plurality of ridges is smaller than the vertical width of the groove.
The length of protrusion from the outer surface of the plurality of ridges is larger than the depth of the groove.
A road block unit in which a joint portion is formed between facing outer surfaces by fitting the facing ridges and the grooves when adjacent road block units are connected. The road according to claim 1, wherein each of the outer surfaces of two adjacent side walls of the four side walls has the plurality of ridges, and each of the outer surfaces of the remaining two side walls has the groove. For block unit. The road block unit according to claim 1 or 2, wherein the height positions of the plurality of ridges and the grooves in the vertical direction are substantially central in the vertical direction of the four side wall portions. Claims 1 to 3, wherein the plurality of ridges have a first ridge at a substantially central portion in the horizontal direction, a second ridge at one end in the horizontal direction, and a third ridge at the other end in the horizontal direction. The road block unit described in either. The distance between the first ridge and the second ridge and the distance between the first ridge and the third ridge are the horizontal lengths of the first ridge. The road block unit according to claim 4, which is larger than the horizontal one. The road block according to claim 4 or 5, wherein the horizontal length of the second ridge and the third ridge is approximately half the horizontal length of the first ridge. unit. The road block unit according to any one of claims 1 to 6, wherein the thickness of the two side wall portions provided with the groove among the four side wall portions is larger than the thickness of the remaining two side wall portions. A road block cover having a square or rectangular box-like shape in plan view.
The four outer surfaces formed on the four side walls,
Multiple ridges extending horizontally on each of the two outer surfaces of the four outer surfaces,
Each of the remaining two outer surfaces of the four outer surfaces has a groove provided so as to be continuous over the entire horizontal direction.
The vertical height positions of the plurality of ridges are substantially the same as the vertical height positions of the grooves.
The vertical thickness of the plurality of ridges is smaller than the vertical width of the groove.
The length of protrusion from the outer surface of the plurality of ridges is larger than the depth of the groove.
A road block cover in which joints are formed between facing outer surfaces by fitting the facing protrusions and the grooves when adjacent road block covers are connected. It comprises a resin cover having a square or rectangular box shape in plan view and a concrete block joined within the cover.
Each of the outer surfaces of two of the four side walls of the cover has a plurality of horizontally extending ridges.
Each of the outer surfaces of the remaining two sidewalls has a continuous groove over the entire horizontal direction.
The vertical height positions of the plurality of ridges are substantially the same as the vertical height positions of the grooves.
The vertical thickness of the plurality of ridges is smaller than the vertical width of the groove.
The length of protrusion from the side wall portion of the plurality of ridges is larger than the depth of the groove.
A road block unit having a first ridge at a substantially central portion in the horizontal direction, a second ridge at one end in the horizontal direction, and a third ridge at the other end in the horizontal direction as the plurality of ridges. The road according to claim 9, wherein each of the outer surfaces of two adjacent side walls of the four side walls has the plurality of ridges, and each of the outer surfaces of the remaining two side walls has the groove. For block unit. The road block unit according to claim 9 or 10, wherein the height positions of the plurality of ridges and the grooves in the vertical direction are substantially central in the vertical direction of the four side wall portions. The distance between the first ridge and the second ridge and the distance between the first ridge and the third ridge are the horizontal lengths of the first ridge. The road block unit according to any one of claims 9 to 11, which is larger than the above. 12. The aspect of any of claims 9 to 12, wherein the horizontal length of the second ridge and the third ridge is approximately half the horizontal length of the first ridge. Road block unit. It comprises a resin cover having a square or rectangular box shape in plan view and a concrete block joined within the cover.
Each of the outer surfaces of two of the four side walls of the cover has a plurality of horizontally extending ridges.
Each of the outer surfaces of the remaining two sidewalls has a continuous groove over the entire horizontal direction.
The vertical height positions of the plurality of ridges are substantially the same as the vertical height positions of the grooves.
The vertical thickness of the plurality of ridges is smaller than the vertical width of the groove.
The length of protrusion from the side wall portion of the plurality of ridges is larger than the depth of the groove.
A road block unit in which the thickness of two side wall portions provided with the groove among the four side wall portions is larger than the thickness of the remaining two side wall portions.

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