JP4579225B2 - Side groove block - Google Patents

Description

  The present invention relates to a gutter block that is laid along or crossing a road mainly for drainage of the road, and is particularly suitable for curve construction.

Conventionally, there have been mainly three methods for curve construction of the side groove block. The first is a method of connecting and laying side groove blocks whose end faces are not perpendicular to the axis, as shown in Patent Document 1 below. The second is a method of manufacturing a bent side groove block, which is shown in the following Patent Document 1 as a prior art, and connecting and laying the block. Third, as shown in Patent Document 2 below, a flexible packing is sandwiched between the connecting portions of the side groove blocks, the blocks on both sides are pressed together to deform the packing, and the side groove blocks on both sides are laid at an angle. It is a method to do.
JP-A-9-32094 Japanese Patent Laid-Open No. 10-54073

  The first and second methods can be applied only to a curve having a predetermined curvature because the end face is not perpendicular to the axis or is connected to a bent side groove block and laid. When building a curve, you have to make a block that matches it. Therefore, in order to cope with various types of curvature, a very large number of types of blocks are required, and many types of molds are required, which is extremely expensive. The third method is not limited to a curve with a certain curvature, but the work of pressing the blocks on both sides together to deform the packing and laying the adjacent side groove blocks at a predetermined angle is complicated. Furthermore, there is a problem that it is not suitable for a curve with a large curvature.

  An object of the present invention is to develop a side groove block that can be applied unconditionally to curves of various curvatures and that can be easily laid.

(Claim 1)
The present invention, inner size according to the one end face and a flat planar end face, the other end surface a convex end face of the curved surface forming a convex arc shape in plan view, the block side wall inner surface, go to the end of the projecting end surface side The side groove block is characterized in that a slope having a narrow dimensional width is formed, and the thickness of the side wall on the convex end surface is made larger than the thickness of the side wall on the flat surface .

(Claim 2 )
Further, the present invention is the side groove block according to claim 1 , wherein the convex end surface is formed with an upward stepped portion with a lower portion projecting from an upper portion, or a reverse stepped portion opposite thereto. is there.

(Claim 3 )
In the present invention, one end surface is a flat flat end surface, and the other end surface is a concave concave end surface having a concave arc shape in plan view, and the inner surface of the block side wall is gradually increased toward the concave end surface side. The side groove block is characterized in that an inclined surface having a large dimensional width is formed, and the thickness of the side wall on the concave end surface is made thinner than the thickness of the side wall on the flat surface .

(Claim 4 )
Further, the present invention provides the side groove block according to claim 3 , wherein a downward stepped portion with an upper portion projecting from a lower portion or an opposite upward step portion is formed on the concave end surface. is there.

(Claim 5 )
In the present invention, the flat end surface of the side groove block according to claim 1 or 2 is connected to one end portion of the side groove block whose both end surfaces are flat flat end surfaces, and the other end portion is The side groove block according to claim 3 or 4 is connected to the flat end surface side, and these three side groove blocks are integrated.

  Since one end surface of the block (convex block) having the convex end surface of the present invention is a flat end surface, a normal block (flat block) having both end surfaces flat can be connected to the flat end surface. Since one end surface of the block (concave block) having a concave end surface according to the present invention is a flat end surface, a flat block can be similarly connected. The convex end surface of the convex block and the concave end surface of the concave block can be connected at an arbitrary angle. Therefore, the curve construction of arbitrary curvature can be easily performed by connecting like a flat block, a convex block, a concave block, a flat block, a convex block, a concave block. Also, it is possible to easily cope with a case where the curvature changes in the middle of the curve.

  Conventional flat side groove blocks can be used as the flat block, and the convex block and the concave block only need to be manufactured with a very short length, so that the manufacturing cost of the mold is greatly reduced. Moreover, it is desirable that the formwork for manufacturing the convex block and the concave block is such that the length of the block can be freely changed. By doing in this way, the convex block or concave block of desired length can be manufactured with one formwork, and the operation | work which cuts a block according to the condition of the field can be eliminated in a construction site.

  On the inner surface of the convex block side wall, a slope is formed so that the inner dimension width becomes narrower toward the end on the convex end surface side, and the thickness of the side wall on the convex end surface is thicker than the thickness of the other end side wall. In the connection part with the concave block, the contact area of the side wall of the adjacent block becomes large, the block can be connected with a large angle, and the curve construction with a larger curvature can be dealt with.

  On the inner surface of the concave block side wall, a slope is formed so that the internal dimension width becomes wider toward the end of the concave end surface side, and the thickness of the side wall on the concave end surface is made thinner than the thickness of the side wall on the flat surface. It is possible to prevent the effective width of the side groove from becoming narrow at the connecting portion with the convex block.

  A convex block is formed by forming an upward stepped portion with a lower portion projecting from the upper portion on one of the convex end surface or the concave end surface, and forming a downward stepped portion corresponding to the upward stepped portion on the other end surface and projecting the upper portion from the lower portion. And the concave block are connected, the downward stepped portion of the adjacent block is supported on the upward stepped portion, and uneven settlement of the adjacent blocks at the block connecting portion is prevented, resulting in a step difference in the adjacent blocks. Can be prevented.

  If the convex block and the concave block are connected and integrated in advance on both sides of the flat block, the work at the site becomes even easier.

  Hereinafter, the present invention will be described in detail with reference to the drawings showing examples. 1 is a perspective view of the side groove block 1 (convex block) of the embodiment, FIG. 2 is a perspective view of the side groove block 9 (concave block) of the embodiment, FIG. 3 is a plan view of the side groove 15 of the embodiment, and FIG. Is a cross-sectional view illustrating the connection state between the side groove blocks 1 and 9, FIG. 5 is a cross-sectional view illustrating the connection state between the side groove blocks 1 ′ and 9, and FIG. 6 is a plan view of the side groove block 18 of the embodiment. 7 is a side view of the side groove block 18 of the embodiment, FIG. 8 is a perspective view of the side groove block 21 of the embodiment, FIG. 9 is a plan view of the side groove block 21 of the embodiment, and FIG. 10 is a side groove of the embodiment. FIG. 11 is a plan view of the side groove block 29 of the embodiment, FIG. 12 is a side view of the connecting portion of the side groove blocks 21 and 29, and FIG. 13 is a perspective view of the side groove block 36 of the embodiment. 14 is a perspective view of the side groove block 42 of the embodiment, and FIG. 15 is a side groove block. It is a cross-sectional view illustrating a connection state of the click 1 'and 47.

  A side groove block (convex block) 1 shown in FIG. 1 is used to construct a culvert side groove, and the bottom ends of opposing left and right side walls 2, 2 are connected and integrated with a bottom plate 3, and the upper end is connected and integrated with a top plate 4, and the whole is substantially It is formed in a square cylinder shape. The top plate can be provided with a slit or grating for allowing water to flow in. One end face of the block 1 is a convex end face 5 that forms a convex arc in plan view, and the other end face is a flat flat end face 6. The left and right side walls 2 are provided with connecting fittings 8 for connecting to the flat block 16. On the inner surface of the side wall of the convex block 1, a slope 7 is formed so that the internal dimension width becomes narrower toward one end (the end on the convex end surface 5 side), and the thickness of the end side wall on the convex end surface side is increased. Is made thicker than the thickness of the end side wall on the flat end face side.

  A side groove block (concave block) 9 shown in FIG. 2 is used in combination with the convex block 1, and the bottom ends of the opposite left and right side walls 10, 10 are connected and integrated with the bottom plate 11 and the upper end with the top plate 12. The whole is formed in a substantially rectangular tube shape. The top plate can be provided with a slit or grating for allowing water to flow in. One end face of the block 9 is a concave end face 13 that forms a concave arc in plan view, and the other end face is a flat flat end face 14. The left and right side walls 10 are provided with connecting fittings 8 for connecting to the flat block 16. The cross sections of the convex block 1 and the concave block 9 in the width direction are equal, and the curvature radii of the convex end surface 5 and the concave end surface 13 are equal.

  FIG. 3 shows a side groove 15 constructed by combining the convex block 1, the concave block 9 and the flat block 16. The flat block 16 is a normal block for a dark wall having a cross-section in the width direction that is substantially a square cylinder that is equal to the convex block 1 and the concave block 9, and both end surfaces are flat end surfaces 17. The straight portions of the side grooves 15 continuously connect the flat blocks. At the start portion of the curve, the flat end surface 6 of the convex block 1 (or the flat end surface 14 of the concave block 9) is connected to the flat end surface 17 of the flat block 16. After that, the connection is made like a concave block, a flat block, a convex block, a concave block,... (Or a convex block, a flat block, a concave block, a convex block,...). Since the connection part of the convex block 1 and the concave block 9 is connected by the convex end surface 5 and the concave end surface 13, an angle can be freely set and curve construction of arbitrary curvature can be performed easily. As illustrated in FIG. 7, each flat end face is firmly connected by inserting a bolt 19 into a hole of the connecting fitting 8 and tightening with a nut 20. The connection fitting is not limited to this example, and various types of connection fittings can be used. Moreover, you may just attach together, without using a connection metal fitting. In the present embodiment, the connection between the convex end surface and the concave end surface is merely an attachment, but it is also possible to connect them firmly using a connecting metal fitting. Further, it is possible to provide a packing material for preventing water leakage on each end face.

  FIG. 4 shows a connecting portion between the convex block 1 and the concave block 9 in the side groove 15. Since the slope 7 is formed on the inner surface of the side wall of the convex block 1, the contact area between the side walls of adjacent blocks is sufficiently large even when the blocks are connected at a large angle at the connection portion (A portion in FIG. 4). can do. FIG. 5 shows a case where convex blocks 1 ′ having no inclined surface 7 and having a uniform wall thickness are connected. Compared with FIG. 4, the connection area of the block 1 ′ (part A in FIG. 5) has a smaller contact area between the side walls of adjacent blocks, and the blocks cannot be connected with a larger angle. In FIG. 4, the arrows indicate the direction of water flow. In this way, it is preferable to lay the wall with the thicker side wall toward the downstream side so as not to cause turbulence in the water flow.

  6 and 7, the side groove block 18 is obtained by connecting and integrating the convex block 1 and the concave block 9 in advance on both sides of the flat block 16. The flat end face 6 of the convex block 1 is connected to one flat end face 17 of the flat block 16, and the flat end face 14 of the concave block 9 is connected to the other flat end face 17, and are firmly connected by the connecting fitting 8. Thus, if the convex block and the concave block are connected and integrated on both sides of the flat block in advance, the work at the site becomes even easier.

  A side groove block (convex block) 21 shown in FIGS. 8 and 9 is formed by forming a downward stepped portion 28 on the convex block 1, with the bottom plate 23 at the lower ends of the opposing left and right side walls 22, 22 and the top plate 24 at the upper end. They are connected and integrated to form a substantially rectangular tube as a whole. The top plate can be provided with a slit or grating for allowing water to flow in. One end face of the block 21 is a convex end face 25 that forms a convex arc in plan view, and the other end face is a flat flat end face 26. The left and right side walls 22 are provided with connecting fittings 8 for connecting to the flat block. A slope 27 is formed on the inner surface of the side wall of the convex block 21 such that the inner dimension width becomes narrower toward one end (the end on the convex end surface 25 side), and the thickness of the one end side wall is increased. It is made thicker than the wall thickness of the other end side wall. The downward stepped portion 28 has a shape in which a part of the side wall 2 and the bottom plate 3 of the convex block 1 is cut out, and the curvature radius of the convex end surface 25 above the downward stepped portion 28 is convex as shown in FIG. The same “r” as the convex end surface 5 of the block 1, the radius of curvature of the convex end surface 25 ′ below the downward stepped portion 28 is “r ′”, and the centers of curvature O 1 of the convex end surfaces 25, 25 ′ are common.

  A side groove block (concave block) 29 shown in FIGS. 10 and 11 is formed by forming an upward step 35 on the concave block 9, and the lower end of the opposite left and right side walls 30, 30 is a bottom plate 31 and the upper end is a top plate 32. They are connected and integrated, and the whole is formed in a substantially rectangular tube shape. The top plate can be provided with a slit or grating for allowing water to flow in. One end face of the block 29 is a concave end face 33 that forms a concave arc in plan view, and the other end face is a flat flat end face 34. The left and right side walls 30 are provided with connecting fittings 8 for connecting to the flat block 16. The upward step portion 35 has a shape in which a part of the side wall 10 and the bottom plate 11 of the concave block 9 is protruded. As shown in FIG. 11, the radius of curvature of the concave end surface 33 above the upward step portion 35 is concave. The same radius “r” as the concave end surface 13 of the block 9, the radius of curvature of the concave end surface 33 ′ below the upward stepped portion 35 is “r ′”, and the centers of curvature O 2 of the concave end surfaces 33, 33 ′ are common. Further, “r” of the convex block 21 and “r” of the concave block 29 are equal, and “r ′” of the convex block 21 and “r ′” of the concave block 29 are also equal.

  The downward step portion 28 and the upward step portion 35 are provided at corresponding positions, and the sizes also correspond. As shown in FIG. 12, at the connecting portion of the convex block 21 and the concave block 29, the downward step portion 28 of the convex block 21 is supported on the upward step portion 35 of the concave block 29. Unequal sinking of the matching blocks is prevented, and a difference between adjacent blocks is prevented. In the present embodiment, the upward stepped portion 35 is formed in the concave block 29 and the downward stepped portion 28 is formed in the convex block 21, but the opposite may be possible. The height of the upward step portion 35 and the downward step portion 28 is arbitrary, but the height of the upward step portion 35 and the downward step portion 28 is the same, or the downward step portion 28 is formed in consideration of manufacturing errors. It is desirable to form at a slightly higher position (about 1 to 2 mm) than the upward stepped portion 35.

  The side groove block and the side groove of the present invention can be applied to side grooves having various cross-sectional shapes, not limited to underdrains. A side groove block (convex block) 36 in FIG. 13 is an example of a so-called variable-gradient side groove, in which upper ends of opposing left and right side walls 37, 37 are connected and integrated by a top plate 38. The top plate can be provided with a slit or grating for allowing water to flow in. One end face of the convex block 36 is a convex end face 39 forming a convex arc in plan view, and the other end face is a flat flat end face 40. The slope 41 is provided on the inner surface of the side walls 37, 37, as in the above-described embodiment. This side groove block 36 can also be easily constructed with a curve having an arbitrary curvature in the same manner as the side groove 15 by using a corresponding concave block and flat block (not shown).

  The side groove block (convex block) 42 in FIG. 14 is a so-called U-shaped groove, and is obtained by connecting and integrating lower ends of opposing left and right side walls 43, 43 with a bottom plate 44. Usually, the upper opening is closed with a lid (not shown). One end face of the convex block 42 is a convex end face 45 that forms a convex arc in plan view, and the other end face is a flat flat end face 46. The slopes 47 are provided on the inner surfaces of the side walls 43, 43, as in the previous embodiment. This side groove block 42 can also be easily curved with an arbitrary curvature similarly to the side groove 15 by using a corresponding concave block and flat block (not shown).

  In FIG. 15, a slope 49 is formed so that the internal dimension width increases as it goes to the end on the concave end surface side, and the thickness of the side wall on the concave end surface 48 is made thinner than the thickness of the side wall on the flat surface 50. The case where the convex block 1 'with the uniform wall thickness is connected to the concave block 47 of the embodiment is shown. In FIG. 5, since the concave block 9 having no slope is connected to the convex block 1 ′, the effective width w of the side groove is narrowed at the connecting portion. This is because the side wall (B portion in FIG. 5) on the concave end face side of the concave block 9 protrudes inside the side groove. The concave block 47 of FIG. 15 prevents the effective width of the connecting portion from becoming narrow due to the effect of the inclined surface 49. The concave block having such a slope is formed by providing a slope on the inner surface of the side wall of the concave block as shown in FIGS. Moreover, it forms also by providing the slope of the side wall inner surface of the concave block corresponding to the variable gradient type | mold of FIG. 13, or the concave block corresponding to the U-shaped groove | channel of FIG.

It is a perspective view of the block 1 for side grooves (convex block) of an Example. It is a perspective view of the block 9 for a side groove (concave block) of an Example. It is a top view of the side groove 15 of an Example. It is a cross-sectional view explaining the connection state of blocks 1 and 9 for side grooves. It is a cross-sectional view explaining the connection state of blocks 1 'and 9 for side grooves. It is a top view of the block 18 for side grooves of an Example. It is a side view of the block 18 for side grooves of an Example. It is a perspective view of the block 21 for side grooves of an Example. It is a top view of the block 21 for side grooves of an Example. It is a perspective view of the block 29 for side grooves of an Example. It is a top view of the block 29 for side grooves of an Example. It is a side view of the connection part of the blocks 21 and 29 for side grooves. It is a perspective view of the block 36 for side grooves of an Example. It is a perspective view of the block 42 for side grooves of an Example. It is a cross-sectional view explaining the connection state of blocks 1 'and 47 for side grooves.

Explanation of symbols

1 Side groove block (convex block)
2 Side wall 3 Bottom plate 4 Top plate 5 Convex end surface 6 Flat end surface 7 Slope 8 Connecting bracket 9 Side groove block (concave block)
DESCRIPTION OF SYMBOLS 10 Side wall 11 Bottom plate 12 Top plate 13 Concave end surface 14 Flat end surface 15 Side groove 16 Flat block 17 Flat end surface 18 Side groove block 19 Bolt 20 Nut 21 Side groove block (convex block)
22 Side wall 23 Bottom plate 24 Top plate 25 Convex end surface 26 Flat end surface 27 Slope 28 Downward stepped portion 29 Side groove block (concave block)
30 Side wall 31 Bottom plate 32 Top plate 33 Concave end surface 34 Flat end surface 35 Upward stepped portion 36 Side groove block (convex block)
37 Side wall 38 Top plate 39 Convex end face 40 Flat end face 41 Slope 42 Side groove block (convex block)
43 Side wall 44 Bottom plate 45 Convex end face 46 Flat end face 47 Side groove block (concave block)
48 Concave end face 49 Slope 50 Flat end face

Claims (5)

One end surface is a flat flat end surface, and the other end surface is a convex end surface having a curved arc shape that is convex in plan view, and the inner dimension width decreases toward the end of the block end surface on the inner surface of the block side wall. The side groove block is characterized in that a slope is formed and the thickness of the side wall of the convex end surface is made larger than the thickness of the side wall of the flat surface . 2. The side groove block according to claim 1 , wherein an upward stepped portion having a lower portion projecting from an upper portion or the opposite downward step portion is formed on the convex end surface. One end surface is a flat flat end surface, and the other end surface is a concave concave end surface having a concave arc shape in plan view, and the inner dimension width increases toward the end of the block end surface on the inner surface of the block side wall. The side groove block is characterized in that a slope is formed and the thickness of the side wall of the concave end surface is made thinner than the thickness of the side wall of the flat surface . 4. The side groove block according to claim 3 , wherein a downward stepped portion having an upper portion protruding from a lower portion or an opposite upward step portion is formed on the concave end surface. The flat end surface of the side groove block according to claim 1 or 2 is connected to one end portion of the side groove block whose both end surfaces are flat flat end surfaces, and the other end portion according to claim 3 or 4. A side groove block characterized by connecting the flat end face side of the side groove block and integrating the three side groove blocks.

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