JP2020056245A - Side ditch block and its lid - Google Patents

Abstract

To provide an easily removable lid to solve the problem in which side walls of a side ditch block may fall down inward and the lid installed in the upper release part may not come off.SOLUTION: There is provided a side ditch block 1 whose upper part opens, on which a plane 9 receiving a plurality of lids 100 standardized on the inside of opposing side walls is formed, and a first area which is an area facing one of the lids and in which a convex portion 20 is formed from the inner side surface and a second area which is the area opposite to the front of the other and in which the convex portion is not formed are provided on the inner side surface 11 of the side wall between the plane and the upper edge of the side wall to prevent the lid from coming off.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an improvement of a gutter block and a lid thereof.

  As a method of draining rainwater or the like, construction of a gutter having an open upper side is widely used. Patent Document 1 proposes a gutter block, and Patent Documents 2 and 3 propose a gutter cover. Recently, the bottom surface of the gutter is deeper from the ground surface so that a high drainage effect can be obtained with a smaller construction area. Along with this, the gutter block is also elongated in the substantially vertical direction.

JP 2005-248595 A Japanese Utility Model Registration No. 3128682 Japanese Utility Model Registration No. 3180924

  With the increase in the size of the side groove block, its deformation has been regarded as a problem. In particular, there is a problem that the side walls fall inward. Possible causes of the side wall collapse include deformation of the gutter block due to temperature shrinkage, deformation due to the rolling roller load during pavement on the road surface, and deformation due to earth pressure or wheel load from around the gutter.

If the side wall of the gutter block falls inward in this manner, the lid provided on the upper release portion may not come off. It is necessary to remove this lid from the gutter block for maintenance such as maintenance after construction, but if the side wall falls down, the side wall will interfere with the lid and not only will it take time to remove it , It may not be possible to remove itself.
In order to prevent the side wall from falling down, it is conceivable to secure a gap between the side wall and the lid by forcibly fitting the spacer between the inner side surfaces of the side wall, but it is troublesome and material cost increases to install the spacer, or However, the spacer itself may be lost due to the vibration of the wheels of the automobile or the like, and the purpose may not be fulfilled.

The present inventors have conducted intensive studies to solve the above-mentioned problems, and as a result, have arrived at the present invention as follows.
The first aspect of the present invention is defined as follows. That is,
The upper side is a gutter block to be released, and a plane for receiving a plurality of standardized lids is formed inside the opposing side wall,
A first region in which a convex portion is formed on the inner surface of the side wall between the plane and the upper edge of the side wall, the first region being a region facing one of the lids, and the other being A gutter block including a region facing the lid and a second region where the protrusion is not formed.

According to the gutter block of the first aspect defined in this way, the clearance between the first region and the lid arranged in the first region is small due to the projection formed on the first region. Become. In other words, when the side wall is deformed and falls down inside, the convex portion of the first region first interferes with the side edge of the lid. At this time, in the second region having no convex portion, the clearance between the second region and the lid disposed there is large, so that interference with the lid does not occur. Even if the bias (earth pressure or the like) that causes the side wall to fall inwardly increases, the projection of the first region interferes with the lid, so that the sidewall does not further fall. As a result, in the second area, the clearance between the cover and the lid is maintained, so that there is no problem in removing the lid.
Of course, when the projection and the lid do not interfere, all the lids can be removed.

The second aspect of the present invention is defined as follows. That is,
In the gutter block defined in the first aspect, four lids having the same standardized width (dimension B; having the same length; see FIG. 1) are continuously arranged, and the first region has both ends. Are provided facing the two lids.
The gutter block of the second aspect defined in this way is a relatively large one on which four lids are installed. Then, a portion where the lids at both ends are set as a first region is provided with a convex portion. By setting both ends to the first region in this way, even if the side wall of the gutter block tries to fall inward, the projections of the first region at both ends interfere with the lid, so that further fall-in is performed. It can be reliably prevented. In other words, the clearance between the two lids located at the center (second region) of the side groove block and the side wall is reliably maintained, and the operability of removing the lids is ensured.

The third aspect of the present invention is defined as follows. That is,
In the side groove block defined in the first or second aspect, the convex portion of the first region is formed on each of the inner surfaces facing each other.
According to the gutter block of the third aspect defined in this way, since the convex portions are provided on both inner side surfaces facing the lid having the same width B on the side wall, the convex portions are provided only on one side. The protrusion amount of the convex portion is smaller than that of. As a result, it becomes easy to remove the mold at the time of manufacturing the side groove block, and thus it is possible to provide an inexpensive side groove amount block.
When the convex portion is provided only on one side of the side wall, the lid is easily shifted to the other side wall in the side groove block. Therefore, a positional shift may occur between the cover and the lid provided in the second area, which may impair the design. Therefore, by providing a convex portion on each of the inner side surfaces of the side walls constituting the first region, the lid installed there will surely stay at the center position of the opening, and the gap between the lid and the lid in the second region will be eliminated. Is suppressed.

In addition, the protrusion amount of the convex portion in the first region can be defined as follows. Here, it is assumed that the protrusions are formed on both inner side surfaces of the side wall facing the lid.
(Fourth aspect) (see FIG. 1)
A is the distance between opposing inner surfaces, B is the width of the lid,
When the protrusion amount of the protrusion of the first region on the opposed inner surface is c,
c <(A−B) × １ ／.
(Fifth aspect)
c is ／ to の of the value of (A−B) × １ ／.
In addition, when the convex portion is formed on only one of the inner side surfaces, the protrusion amount c of the convex portion is
c <(AB), preferably 3/4 to 1/4 of the value of (AB).
When the protrusion amount c of the projection is set as described above, the lid can be installed on the gutter block without resistance when the side wall of the gutter block does not fall down. On the other hand, when the side wall is inclined inward, the protrusion interferes and suppresses the inclination with a constant width. Thus, the removal of the lid in the second area is ensured.

The sixth aspect of the present invention is defined as follows. That is,
In the gutter block defined in the first to fifth aspects, the convex portion has a truncated cone shape, and a pair thereof is formed near both ends of the first region.
According to the gutter block of the sixth aspect defined in this way, the head is less likely to be crushed by making the convex portion a truncated cone. Also, the design is improved.

The seventh aspect of the present invention is defined as follows. That is,
In the gutter block defined in the first to sixth aspects, a mark is formed on an upper edge of the side wall, and the mark indicates the first region and / or the second region.
According to the gutter block defined in the seventh aspect defined in this way, even if the side wall falls down inside, the position of the lid installed in the second area can be easily determined using the mark as a mark. You can check. Thereby, the operation of removing the lid can be smoothly performed.

  As described above, a convex portion is provided in the first region on the inner side surface of the side wall of the side groove block, and the convex portion is preferentially provided to the lid portion disposed in the first region when the side wall is deformed so as to fall inward. Cause interference. Thereby, further falling down is prevented. When the convex portion of the first region interferes with the lid, a clearance is secured between the inner surface of the second region and the lid. Therefore, the ease of the work of removing the lid in the second area is ensured.

Such an effect can be obtained even when the convex portion is provided on the side edge of the lid or on both the lid side edge and the inner surface of the first region facing the side edge.
According to the study of the present inventors, when a convex portion is provided on the lid, it is preferable to provide a convex portion on each edge facing the side wall. The amount of protrusion of the projection is approximately the same at each edge. This can prevent the lid from being unevenly distributed when the lid is installed in the opening of the gutter block.

Here, the distance between the opposing inner surfaces is A, the width of the lid is B,
Assuming that the protrusion amount of the protrusions provided on both edges of the lid is c, c is ／ to の of the value of (A−B) × １０ (see FIG. 10).
By designing the protrusion amount c of the projection as described above, the lid can be installed on the gutter block without resistance when the side wall of the gutter block does not fall down. Further, the inward inclination of the side wall is prevented, so that the removal of the lid having the same width dimension B without the convex portion becomes easy. In addition, by providing the protrusions on both edges of the lid, uneven distribution of the lid with respect to the side groove block can be prevented.

FIG. 1 is a side view showing a configuration of a gutter block according to an embodiment of the present invention. FIG. 2A is a plan view of the same, and FIG. 2B is a sectional view taken along line BB in FIG. 2A. 3 (A) and 3 (C) are plan views of a side groove block according to a modification of the embodiment of the present invention, and FIG. 3 (B) is a sectional view taken along the line BB in FIG. 3 (A). FIG. 3D is a sectional view taken along line DD in FIG. 3C. FIG. 4A is a plan view of a gutter block according to a modification of the embodiment of the present invention, and FIG. 4B is a cross-sectional view taken along line BB in FIG. 4A. FIG. 5A is a side view of another modification of the embodiment of the present invention, and FIG. 5B is a partial plan view thereof. FIG. 6A is a side view of another modification of the embodiment of the present invention, and FIG. 6B is a partial plan view thereof. FIG. 7A is a side view of another modification of the embodiment of the present invention, and FIG. 7B is a partial plan view thereof. FIG. 8 is a side view of another modification of the embodiment of the present invention. 9A is a plan view of the same, and FIG. 9B is a cross-sectional view taken along line BB in FIG. 9A. FIG. 10A is a side view of another modification of the embodiment of the present invention, and FIG. 10B is a partial plan view thereof. FIG. 11A is a side view of another modification of the embodiment of the present invention, and FIG. 11B is a partial plan view thereof.

FIG. 1 shows a side view of a gutter block according to an embodiment of the present invention. 2 (A) is a plan view, and FIG. 2 (B) is a cross-sectional view (without a lid) taken along line BB in FIG. 2 (A).
The gutter block 1 has a substantially U-shaped cross section made of concrete, and a pair of side walls 5 stand substantially vertically from both edges of the bottom wall 3. On the inner peripheral surface of each side wall 5, a ridge 7 is bulged, and the upper surface thereof is a flat surface 9 on which the lid 100 is placed. An inner surface 11 is provided between the plane 9 and the upper edge 6 of the side wall 5. The inner side surface 11 faces both edges of the lid 100 placed on the plane 9 of the ridge 7. The inner side surface 11 is inclined in accordance with the inclination of both edges of the lid 100.

  As shown in FIG. 2, the side groove block 1 is formed in a long shape, and four lids 100 having a specified size and shape are placed thereon. In other words, since the lid 100 is standardized, the position where the lid 100 is placed on the side groove block 1 is determined. That is, as disclosed in FIG. 2B, four virtual regions are defined corresponding to the lid 100. In this example, the two regions on both sides are defined as a first region A1, and a convex portion 20 is formed on the inner surface 11 thereof. The protrusion 20 is not provided in the inner second region A2.

The protrusion 20 has a truncated conical shape, and is integrally formed on both ends of the inner surface 11 of the first region A1 on each side wall 5. At the upper edge of the side wall 5, a portion corresponding to the second area A <b> 2 is provided with a triangular mark 8 formed of a shallow depression.
The projection 20 is not formed in the second region A2.
The lid 100 is standardized, and a concave portion 101 is formed substantially at the center of one edge orthogonal to the arrangement direction.

In this embodiment, when the distance between the inner side surfaces 11 is A, the width of the lid 100 is B, and the protrusion amount of the projection 20 is c, the value of c is (A−B) ××. 3/4 to 1/4.
For example, the distance A may be 370 mm, the width B may be 362 mm, and the protrusion amount c of the protrusion may be 2 mm.
Note that the above distances A and B are distances of the upper edge portion. As shown in FIG. 1, since the inner side surface 11 and the side edge of the lid 100 are both inclined, the value of (AB) is assumed to be maintained between the inner side surface 11 and the side edge of the lid 100. .

Hereinafter, modifications of the above-described gutter block 1 will be described with reference to FIGS. 3 to 7, the same elements as those in FIGS. 1 and 2 are denoted by the same reference numerals, and the description thereof will be partially omitted.
In the modification shown in FIGS. 3A and 3B, the first areas A1 and the second areas A2 are alternately arranged.

In the modification shown in FIGS. 3C and 3D, a first area A1 is formed at the center of a side groove block on which three lids 100 are placed, and the other area is formed as a second area A2. And In this example, an X mark 18 is provided on the upper edge 6 corresponding to the first area A1. Also in the types of FIGS. 3C and 3D, both ends (or one end) thereof may be the first region A1, and the remainder may be the second region A2.
As described above, the gutter block 1 can be shortened or lengthened according to the number of the lids 100.
The lid specified here refers to a lid whose size and shape are determined by a plan such as JIS. For example, the length of the lid 100 used in FIG. 1 (the axial direction of the gutter block 1) is 500 mm, and as a result, the length of the gutter block 1 is 20,000 mm.

  In the modification shown in FIG. 4, one first region A1 is formed in the center of the side groove block, and the other region is a second region A2. In this example, an X mark 18 is provided on the upper edge 6 corresponding to the first area A1.

In the modification shown in FIG. 5, a horizontally long ridge 21 is provided on the inner surface 11 of the first region A1. The ridge 21 may be formed over the entire length of the inner surface 11 of the first area A1.
In the modification shown in FIGS. 6 and 7, only one inner surface 11 of the side wall 5 is provided with the protrusion 20 or the protrusion 21.

  8 and 9 show a block 201 for a gutter in another embodiment. In this example, the side wall 205 of the gutter block rises vertically from the bottom wall 203, and the upper end bulges outward. Then, a flat surface 209 on which the lid 100 is placed is formed by notching the inner surface. A convex portion 220 is provided on an inner side surface 211 between the flat surface 209 and the upper edge 206 of the side wall 205 to define a first region A1.

The projection 220 of this example has an inverted trapezoidal shape when viewed from the front, and its upper edge is flush with the upper edge 206 of the side wall.
As described above, the shape of the convex portion can be arbitrarily selected, and the number thereof is not particularly limited. For example, one projection may be provided at the center of the first region A1. This is because it is only necessary to prevent the side wall from falling down. In the first region A1, the shape of the convex portion can be made different. The ridge shown in FIG. 5 is also a form of the ridge.

FIG. 10 shows another embodiment of the present invention. The gutter block 301 used in this embodiment is a general-purpose block, and does not include the above-described protrusion. In this example, the protrusions 120 are provided on both edges of the lid 100. As in the previous example, when the distance between the inner surfaces 11 is A, the width of the lid 100 is B, and the protrusion amount of the protrusion 120 is c, the value of c is (A). -B) 3/4 to 1/4 of the value of x1 / 2.
In the example of FIG. 11, a horizontally long ridge 121 is provided instead of the ridge 120.
10 and 11, the same elements as those in FIGS. 1 and 2 are denoted by the same reference numerals, and description thereof is omitted.

In the above, the example in which the convex portions are provided on both side edges of the lid has been described, but the convex portions may be provided only on one side edge of the lid. Protrusions may be provided on each of the inner side surface of the side wall of the side groove block and the side edge of the lid.
In the above example, the protrusions protrude from the inner surface and the lid of the side wall of the gutter block, which is a concrete product, and are integral with them.
Of course, the convex portions can be formed separately. In this case, in order to prevent the protrusion from falling off, it is preferable to prepare an undercut portion on the base side of the protrusion and bury it as an insert in a concrete product. The inserted undercut portion and the convex portion can be detachably and firmly connected to each other by using a means such as a screw.

  The present invention is not limited to the above embodiments, examples, and modifications. Various modifications are included in the present invention without departing from the scope of the claims and within the scope of those skilled in the art.

1, 101, 301 Side groove block 5, 205 Side wall 6, 206 Upper edge 9, 209 Side wall 11, 211 Inner side surface 20, 21, 220, 221 Convex part 100 Cover A1 First area A2 Second area

Claims (8)

The upper side is a gutter block to be released, and a plane for receiving a plurality of standardized lids is formed inside the opposing side wall,
A first region in which a convex portion is formed on the inner surface of the side wall between the plane and the upper edge of the side wall, the first region being a region facing one of the lids, and the other being A gutter block including a region facing the lid and a second region where the protrusion is not formed.   The gutter block according to claim 1, wherein three or more standardized lids are continuously arranged, and the first region is provided to face two lids at both ends.   The gutter block according to claim 1, wherein the convex portion of the first region is formed on each of the opposing inner side surfaces. A is the distance between the opposed inner surfaces, B is the width of the lid,
When the protrusion amount of the protrusion of the first region on the opposed inner surface is c,
4. The gutter block according to claim 3, wherein a relationship of c <(A−B) × 1/2 is satisfied. 5. The gutter block according to claim 4, wherein the protrusion amount c of the convex portion satisfies the following relationship: c is Ａ to の of a value of (A−B) × １ ／.   The side groove block according to any one of claims 1 to 5, wherein the convex portion has a truncated cone shape, and a pair thereof is formed near both ends of the first region.   The gutter block according to any one of claims 1 to 6, wherein a mark is formed on an upper edge of the side wall, and the mark indicates the first region and / or the second region. A lid formed over a side block having an upper open side having a flat surface formed on an opposing side wall and an inner surface of the side wall between the flat surface and an upper edge of the side wall, the lid being a flat surface of the side wall. On the lid, the side edge of which is opposed to the inner surface,
Protrusions are formed on both side edges of the lid, and the protrusion amount c of the protrusions is defined as follows:
When the distance between the opposed inner surfaces is A and the width of the lid is B,
c is a lid which is covered with a gutter block which is 3/4 to 1/4 of the value of (AB) x 1/2.

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