JP7171366B2 - Restraint block - Google Patents

Description

The present invention relates to constraining blocks. More particularly, the present invention relates to a restraining block used to enclose the perimeter of a paving area paved with a large number of paving blocks and prevent the paving blocks from coming loose or moving.

There is a concrete curbstone disclosed in Patent Document 1 as a conventional restraint block.
This concrete curb stone has a substantially rectangular parallelepiped shape, and has an uneven portion (convex portion and concave portion) for combining with the adjacent concrete curb stone, and a projection portion for forming a joint between the adjacent concrete curb stone. It is prepared.

According to the above-described prior art, since the adjacent concrete curb stones are meshed with each other in the convex portion and the concave portion, it is possible to restrain the concrete curb stone from breaking up and moving in the width direction. However, vertical movement cannot be restricted.
As a result, the concrete curbs may partially subside, resulting in steps on the paved surface.

JP 2016-142010 A

SUMMARY OF THE INVENTION In view of the above circumstances, it is an object of the present invention to provide a restraining block that does not cause any separation or movement in the width direction and no movement in the vertical direction between adjacent restraining blocks.

A restraining block of a first invention is a restraining block for restraining the movement of a paving block, and has a rectangular parallelepiped shape having a pair of long-side end faces and a pair of short-side end faces in a plan view. On the short side end face of the , a lateral restraint is formed between the upper part and the adjacent restraint block to restrain the lateral movement, and the lower part of the lateral restraint is formed between the adjacent restraint block. A vertical restraint body that restrains directional movement is formed .
A constraining block according to a second aspect of the invention is, in the first aspect, formed on the short side end face on one side of the center line, assuming that the lateral constraint body divides the short side end faces into left and right sides. and a vertically extending narrow concave portion formed in the end surface of the short side on the other side of the center line.
A constraining block according to a third aspect of the present invention is, in the first aspect, formed on the short side end surface on one side of the center line where the vertical direction restraining body divides the short side end surface into left and right, assuming a center line. and a wide concave portion formed on the short side end surface on the other side of the center line.
A restraining block according to a fourth aspect of the invention is the second aspect, wherein the narrow convex portion has a semi-cylindrical shape and is formed to protrude from the end face on the short side, and the narrow concave portion has a semicircular shape. It is a concave groove, and is characterized in that it is formed by being recessed from the end face on the short side.
A constraining block according to a fifth aspect of the invention is the constraining block according to the third aspect, wherein the wide convex portion has a trapezoidal shape in plan view and is formed to protrude from the end face on the short side, and the wide concave portion has a trapezoidal shape in plan view. and is formed so as to be recessed from the end face on the short side.
A constraining block according to a sixth aspect of the invention is the constraining block according to the fourth aspect of the invention, wherein a joint-forming narrow ridge is formed on the semicircular wall surface of the narrow concave portion so as to contact the narrow convex portion of the adjacent constraining block. It is characterized by
A constraining block according to a seventh aspect of the invention is characterized in that, in the constraining block according to the fifth aspect of the invention, a joint-forming narrow ridge is formed on the front end surface of the wide convex portion to contact the wide concave portion of the adjacent constraining block. and

According to the 1st invention, there exist the following effects.
a) Since the horizontal direction restraint restrains the lateral movement between the adjacent restraining blocks, it is possible to prevent the paving blocks from falling apart or moving, and the vertical restraint prevents the vertical movement between the adjacent restraining blocks. Since it is constrained, it is possible to prevent the constraining block from settling down or forming a step.
b) Since the lateral restraining body is formed near the upper surface of the block where the external force for lateral movement directly acts, the restraining force for lateral movement is increased.
According to the second aspect of the present invention, when a plurality of restraining blocks are arranged in a row, the vertically extending narrow protrusions between the adjacent restraining blocks are fitted into the vertically extending narrow recesses, so that the adjacent restraining blocks are connected to each other. each other's lateral movement can be constrained between the constraining blocks.
According to the third aspect of the invention, when a plurality of restraining blocks are arranged in a row, the wide protrusions and wide recesses between the adjacent restraining blocks overlap each other in the vertical direction. Up and down movement can be constrained.
According to the fourth aspect of the invention, since the narrow protrusion is semi-cylindrical and the narrow recess is a semi-circular groove, the contact area during fitting is large, and even when a lateral external force is applied, the contact area is large. Since rattling is less likely to occur between the convex portion and the concave portion, the lateral movement is strongly restrained.
According to the fifth invention, the wide convex portion and the wide concave portion are trapezoidal in plan view, and have a wide contact area. Therefore, even if an external force is applied in the vertical direction, the supporting force of the wide convex portion and the wide concave portion is large, so the vertical movement is strongly restrained.
According to the sixth aspect of the invention, since a gap is formed between the wall surface of the narrow concave portion and the wall surface of the narrow convex portion of the adjacent restraining block by the narrow ridge, joint sand is put into the gap to form the joint. be able to.
According to the seventh invention, since a gap is formed between the front end face of the wide protrusion and the wall surface of the wide protrusion of the adjacent block for restraint by the narrow ridge, joint sand is put into the gap to form the joint. be able to.

It is a perspective view of block A for restraint concerning one embodiment of the present invention. FIG. 2 is a plan view of the restraining block A shown in FIG. 1; FIG. 2 is a side view of the restraining block A shown in FIG. 1; It is a front view of the block A for restraint shown in FIG. It is an enlarged plan view of a lateral restraint. It is an enlarged plan view of a vertical restraint. It is a perspective view of a state in which two restraining blocks A are arranged in a row. It is explanatory drawing which shows the use condition of the block A for restraint.

Next, embodiments of the present invention will be described with reference to the drawings.
The restraining block A according to the present invention is a block that is installed along the extension of a pavement surface formed by laying a large number of pavement blocks.

Examples of pavement blocks for forming a pavement surface include those disclosed in Japanese Patent Laid-Open No. 2018-31193. In such a paving block, a concave portion and a convex portion are provided around a rectangular block body, and adjacently arranged paving blocks are constrained so as not to move in the lateral direction. It is designed to be These paving blocks will not come apart as long as the perimeter of the paving surface on which they are laid is fixed. However, when the surroundings are no longer fixed, they tend to separate from each other, causing the paving blocks within the pavement surface to move or come apart.
The restraining block A of the present invention is a block used for fixing the outer circumference of the paved surface as described above.

The basic shape of the restraining block A according to this embodiment is, as shown in FIG. It has 4 six faces.
Height, width, and length as used herein mean height H shown in FIG. It is used in the sense of the direction indicated by L. In addition, it is used on the premise of normal use.

The upper surface 3 and the bottom surface 4 of the restraining block A are flat horizontal surfaces. The pair of long side end surfaces 1, 1 are basically flat vertical surfaces. The pair of short-side end faces 2, 2 has a flat vertical surface on which unevennesses forming the lateral restraint body 10 and the vertical restraint body 20 are formed. Flat and vertical end faces (short side end faces 2a, 2b, and 2c, which will be described later) are left on the short side end faces 2 where no irregularities are formed.

A small step 1s extends laterally near the middle position in the height direction between the pair of long side end faces 1, 1, separating the upper end face 1a from the lower end face 1b.
The upper end face 1a is slightly smaller in width than the lower end face 1b. Such a step 1s is provided because, as shown in FIG. In the case of enclosing with, a part of the restraining block A is cut in the middle of the length direction L, and the end face is applied to the side surface of another restraining block A and installed at a right angle. This is to ensure a gap to be filled with sand.

A lateral restraint body 10 and a vertical restraint body 20 are formed on the pair of short side end faces 2 , 2 .
In the present invention, the upper part and the lower part of the short side end face refer to the upper part and the lower part of the horizontal line drawn at an arbitrary height point on the short side end face. In terms of form, the part above the horizontal line Lh of approximately the middle height shown in FIG. 4 is called the upper part, and the part below it is called the lower part.

Further, in the present invention, the one side and the other side of the short side end face refer to the one side and the other side bounded by a vertical line drawn at a point approximately in the middle position in the width direction of the short side end face. In the embodiment described in FIG. 4, the left side of the center line Lv drawn vertically at the widthwise middle point shown in FIG. 4 is called one side, and the right side is called the other side.

The laterally restraining body 10 restrains the lateral movement between the adjacent restraining blocks A, and is formed above the short side end surfaces 2,2. The vertical restraining body 20 restrains the vertical movement between the adjacent restraining blocks A, and is formed below the short side end surfaces 2,2.

Further details will be described below with reference to FIGS. 1 to 4. FIG.
On the short side end face 2, as described above, the vertical end portion after forming the unevenness constituting the lateral restraint body 10 and the vertical restraint body 20 is left. is vertical and flat in use.

The laterally restraining body 10 is composed of a longitudinally extending narrow protrusion 11 and a longitudinally extending narrow recess 12 .
The narrow convex portion 11 is formed on one side (left side in FIGS. 1 and 4) of the imaginary center line Lv in the upper portion of the short-side end surface 2, and on both sides thereof is a partial short-side end surface 2a. , 2b are left.
The narrow convex portion 11 has a semi-cylindrical shape and is formed so as to protrude from the partial short-side end surfaces 2a and 2b.

The narrow recess 12 is formed on the other side (on the right side in FIGS. 1 and 4) of the imaginary center line, with partial short side end surfaces 2b and 2c left on both sides.
The narrow concave portion 12 is a semicircular concave groove, and is formed by being recessed from the partial short-side end surfaces 2b and 2c.

The narrow convex portion 11 and the narrow concave portion 12 are semicircles of the same size, and as shown in FIG. placement is the same. In other words, when viewed from above, the narrow protrusions 11 on one of the short-side end surfaces 2 are formed at positions corresponding to the narrow recesses 12 on the other short-side end surface 2 . The narrow concave portion 12 on one of the short side end faces is formed at a position corresponding to the narrow convex portion 11 on the other short side end face 2 . Therefore, the narrow protrusions 11 and the narrow recesses 12 of the restraining blocks A, A arranged adjacent to each other can be fitted together.

The vertical restraint body 20 is composed of a wide protrusion 21 and a wide recess 22 .
A wide convex portion 21 is formed on one side (left side in FIGS. 1 and 4) of the imaginary center line Lv of the short side end face 2, and a wide concave portion is formed on the other side (right side in FIGS. 1 and 4) of the center line Lv. 22 are formed.

The wide convex portion 21 has a trapezoidal shape in plan view, and is formed to protrude from the short-side end surface 2 . Further, the upper surface of the wide protrusion 21 is formed as an inclined surface in the direction in which the front end is lowered. The wide recessed portion 22 has a trapezoidal shape in a plan view and is formed by being recessed from the short side end face 2 . The upper surface of this wide concave portion 22 is formed as an inclined surface in a direction downward toward the back.

The wide convex portion 21 and the wide concave portion 22 are connected by an inclined surface 23 . The center position of the inclined surface 23 coincides with the imaginary center line Lv. Since the upper surfaces of the wide protrusion 21 and the wide recess 22 are both inclined surfaces, and the connecting portion of the wide protrusion 21 and the wide recess 22 is an inclined surface 23, the adjacent wide protrusion 21 and the wide recess 22 are formed. can be easily fitted.

As shown in FIG. 2, they are formed on the two short side end faces 2, 2 at both ends in the length direction, and the arrangement along the width direction is the same. In other words, when viewed from above, the wide convex portion 21 on one of the short side end faces 2 is formed at a position corresponding to the wide concave portion 22 on the other short side end face 2. The wide concave portion 22 of the short side end face 2 is formed at a position corresponding to the wide convex portion 21 of the other short side end face 2 . Therefore, the wide protrusions 21 and the wide recesses 22 of the restraining blocks A, A arranged adjacent to each other can be fitted together.

As shown in FIGS. 2, 4 and 5, on the semicircular wall surface of the narrow recess 12, two thin ridges 13 for joint formation are formed vertically and in parallel. In addition, one thin ridge 14 is vertically formed on the short side end face 2c on the right side of the narrow recess 12. As shown in FIG. These two narrow protrusions 13, 13 and one narrow protrusion 14 can be brought into contact with the narrow protrusions 11 of the adjacent restraining blocks, and between the narrow recesses 12 and the narrow protrusions 11, It is possible to form joint gaps with uniform gaps in

As shown in FIGS. 2, 4 and 6, a thin ridge 24 for joint formation is formed on the front end face of the wide projection 21. As shown in FIG. The narrow ridge 24 can be brought into contact with the front end face of the wide concave portion 22 of the adjacent restraining block, and a joint gap having a uniform gap can be formed between the wide convex portion 21 and the wide concave portion 22.例文帳に追加

The narrow ridges 13, 14 and the narrow ridges 24 can form a uniform gap between the short side end surfaces 2, 2 when the restraining blocks A, A are arranged in series in the longitudinal direction. can. Therefore, joint sand can be easily put in during construction, and rattling between the adjacent restraint blocks A after the joint sand is put in can be eliminated, so that the installed state of the constructed restraint block A can be maintained for a long time. .

Next, how to use the restraining block A will be explained.
As shown in FIG. 7, a plurality of restraining blocks A, A, . FIG. 8 shows an example of a place where the restraining blocks A connected in this way are used. Symbol P indicates a paved surface paved with general pavement blocks B, and symbol R indicates a road surface paved with asphalt or the like. The restraining block A is installed at the boundary between the pavement surface P and the road surface R, and is used to prevent the pavement block B from coming apart or moving.

Advantages of the restraining block A according to this embodiment will be described.
(1) As shown in FIG. 7, when a plurality of restraining blocks A, A are arranged in a row, the vertically extending narrow protrusions 11 between the adjacent restraining blocks A, A extend vertically. By fitting into the width recess 12, it is possible to restrain mutual lateral movement between the adjacent restraining blocks A, A. Similarly, when the restraining blocks A, A are arranged in a row, the wide protrusions 21 and the wide recesses 22 between the adjacent restraining blocks A, A overlap each other vertically, so that the adjacent restraining blocks A, A It is possible to constrain the vertical movement of each other between them. Therefore, it is possible to prevent the constraining block A from settling down or forming a step.

(2) Since the narrow convex portion 11 is semi-cylindrical and the narrow concave portion 12 is a semi-circular concave groove, the contact area at the time of fitting is large, and the width is narrow even when lateral external force is applied. When the arcuate surface of the convex portion 11 and the arcuate surface of the narrow concave portion 12 are in contact with each other, rattling is less likely to occur, so that the lateral movement is strongly restrained.
Both the wide convex portion 21 and the wide concave portion 22 are trapezoidal in plan view and have a wide contact area. Therefore, even if an external force is applied in the vertical direction, the supporting force of the wide convex portion 21 and the wide concave portion 22 is large, so that the vertical movement is strongly restrained.

(3) The thin ridges 13 and 14 create a gap between the wall surface of the narrow concave portion 12 and the wall surface of the narrow convex portion 11 of the adjacent restraining blocks A and A. Fill the gap with joint sand. Joints can be formed.
In addition, since a gap is formed between the front end face of the wide protrusion 21 and the wall surface of the wide protrusion 21 of the adjacent restraining blocks A, A by the narrow ridge 14, joint sand is put into the gap to form a joint. can do.

(4) As described above, the lateral restraint 10 restrains the lateral movement between adjacent restraining blocks. Since it is formed, the restraining force for lateral movement is strengthened. In addition, since the wide convex portion 21 and the wide concave portion 22 of the vertical direction restraining body 20 are formed in the lower portion of the block body, manufacturing is facilitated.

A Constraining block 1 Long side end surface 2 Short side end surface 3 Top surface 4 Bottom surface 10 Lateral direction restraint 11 Narrow protrusion 12 Narrow recess 13 Narrow protrusion 20 Vertical direction restraint 21 Wide protrusion 22 Wide recess 24 Thin ridge

Claims (7)

A restraining block for restraining movement of the paving block,
A rectangular parallelepiped having a pair of long side end faces and a pair of short side end faces in plan view,
On the pair of short side end faces, a lateral restraint body is formed between the upper portion thereof and the adjacent restraining block to restrain lateral movement, and the lower portion thereof between the adjacent restraining block. A block for restraint, characterized in that a vertical restraint body for restraining movement in the vertical direction is formed . Assuming that the horizontal constraining body is a center line dividing the short side end face into left and right, a vertically extending narrow convex portion formed on the short side end face on one side of the center line; 2. The restraining block according to claim 1 , further comprising a longitudinally extending narrow recess formed in the end face of the short side on the other side of the center line. Assuming that the vertical restraint body has a center line that divides the short side end face into left and right, a wide convex portion formed on the short side end face on one side of the center line and a wide protrusion formed on the short side end face on the other side of the center line 2. The restraining block according to claim 1 , further comprising a wide concave portion formed in the end face of the short side. The narrow convex portion has a semi-cylindrical shape and is formed so as to protrude from the end surface on the short side,
3. The restraining block according to claim 2 , wherein said narrow recess is a semi-circular recess groove formed by fitting recess from said short side end face. The wide convex portion has a trapezoidal shape in plan view and is formed to protrude from the short side end face,
4. The restraining block according to claim 3 , wherein the wide recess has a trapezoidal shape in a plan view, and is formed so as to be recessed from the end face on the short side. 5. The restraining block according to claim 4 , wherein a joint-forming thin ridge is formed on the semicircular wall surface of the narrow concave portion and is brought into contact with the narrow convex portion of the adjacent restraining block. . 6. The restraining block according to claim 5 , wherein the front end surface of said wide protrusion is formed with a joint-forming thin ridge that contacts the wide recess of an adjacent restraining block.

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