JP2020076231A - Connection structure of side ditch block on side ditch corner part - Google Patents

Abstract

To provide the connection structure of the side ditch block on the side ditch corner part, that can easily and inexpensively form the side ditch corner part according to a bend angle of a road by using an existing straight side ditch block without lowering a drainage function of the side ditch.SOLUTION: In a plurality of the side ditch blocks arranged at a side ditch corner part, semi-arc fitting recess parts for forming circular disk shaft fitting holes are provided at bottom end edge parts facing each other, respectively, and replenishment blocks for replenishing an inner space part and an outer space part of a disc shaft body fitted into disc shaft fitting holes in a connecting bent part of opposing ditch blocks.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a connection structure of gutter blocks at corner portions of a gutter.

  Conventionally, roads such as roads and sidewalks and underground have gutters formed by connecting a plurality of linear gutter blocks along the road, but the road naturally has a corner.

  In order to construct such a corner portion of the gutter according to the corner of the road, in a continuous gutter block, a connecting cylinder body in which a drainage window communicating with both blocks at the end portions of both blocks is formed on the side wall to project is formed. Of the blocks (see, for example, Patent Document 1), or the opposite ends of both blocks are obliquely cut and joined in a plan view (see, for example, Patent Document 2). A bent connection portion is formed between the gutter blocks.

JP 2002-294851 A Utility model registration No. 3184567

  However, in the conventional technology, the connection structure in the bent connection portion of both blocks is complicatedly complicated, the labor for installing the gutter is complicated, the construction cost is high, and the original drainage function of the gutter is deteriorated. There was a fear of causing it.

  That is, the technique disclosed in Patent Document 1 complicates the structure and manufacturing process of the connecting cylinder body that is interposed between the connecting portions of both blocks, and after the installation, the connecting cylinder body does not operate during heavy precipitation such as heavy rain. This was a cause of inadvertent clogging by foreign matter mixed with rainwater flowing through the gutter, causing drainage problems and reducing the drainage function of the gutter.

  Further, the technique disclosed in Patent Document 2 requires precise diagonal cutting of an existing linear gutter block according to the bend angle of a road at a construction site, which imposes a heavy work load on the builder and actually increases the work load. It was not a construction site.

  The present invention has been made in view of such circumstances, without lowering the drainage function of the gutter, using an existing linear gutter block for straight and inexpensive ditch according to the corner of the road. It is intended to provide a connection structure of gutter blocks that can form a corner portion.

  In order to solve the above-mentioned conventional problems, in the present invention, in a plurality of gutter blocks arranged at the corners of the gutter, semicircular arc shapes for forming circular disk shaft fitting holes in the bottom end edge portions facing each other. Replenishing blocks formed by casting in place to replenish the inner and outer space portions of the disc shaft body fitted in the disc shaft fitting holes in the connecting bent portions of the opposing gutter blocks, respectively. The connection structure of the gutter block at the corner portion of the gutter is characterized by being configured as described above.

  According to the present invention, in the plurality of gutter blocks arranged at the corners of the gutter, semi-circular fitting recesses for forming circular disk shaft fitting holes are provided at the bottom end edges facing each other, and Drain drainage of the gutter because it is configured by forming a refill block by casting in place to replenish the inner and outer space parts of the disc shaft body fitted in the disc shaft fitting hole in the connecting bent part of the gutter blocks. It is possible to easily and inexpensively form the corner portion of the gutter corresponding to the corner of the road by using the existing linear gutter block without deteriorating the function.

  That is, without considering the curvature of the corner portion of the desired gutter, simply providing a semi-circular fitting recess at the bottom end edge of the existing linear gutter block, the center of the disk shaft body of each block By arranging the fitting concave portion on the outside and arranging the supplementary block for supplementing each of the inner and outer space portions of the disc shaft body by the in-situ filling so as to be fitted on the same space, the space between the two blocks is increased. There is an effect that it is possible to easily and inexpensively form the bent connecting portion that matches the corner portion of the side groove. In addition, the disk shaft has an effect of improving the drainage function without interfering with the rainwater flowing through the side groove.

It is a top view which shows the connection structure of the block for gutters which concerns on this invention. It is an appearance perspective view showing the connection structure of the gutter block concerning the present invention. FIG. 3 is an external perspective view showing the configuration of a supplementary block of the connection structure for gutter blocks according to the present invention. It is a top view which shows the arrangement structure of the upper surface water passage of the upper cover block which concerns on the connection structure of the block for gutters concerning this invention. FIG. 4 is a plan view of an upper lid block according to the connection structure of the gutter blocks according to the present invention.

  The gist of the present invention is that, in a plurality of gutter blocks arranged at the corners of a gutter, semi-circular fitting recesses for forming circular disk shaft fitting holes are provided at the bottom edge edges facing each other, and In order to replenish the inner and outer space portions of the disc shaft body fitted in the disc shaft fitting hole in the connection bent portion of the gutter blocks to be formed, a replenishing block formed by casting is formed. The purpose of the present invention is to provide a connection structure for a gutter block at a corner portion of the gutter.

  Hereinafter, examples of the present invention will be described in detail. 1 and 2 are a plan view and a perspective view showing a connection structure of a gutter block according to the present invention, FIG. 3 is a perspective view showing a structure of a refill block of the connection structure of a gutter block according to the present invention, and FIG. FIG. 5 is a plan view showing an arrangement configuration of upper surface water holes of the upper lid block according to the connection structure of the gutter blocks according to the present invention, and FIG. 5 is a plan view of the upper block according to the connection structure of the gutter blocks according to the present invention.

  As shown in FIG. 1, the connection structure A of the gutter block according to the present embodiment has a plurality of gutter blocks 10 and 10 ′ arranged at the corners of the gutter, and the edges of the bottom parts 11 and 11 ′ facing each other. The parts are provided with semi-circular fitting recesses 21 and 21 ′ for forming circular disk shaft fitting holes 20 in a state where the edge portions face each other. In the present embodiment, the gutter block 10 uses a U-shaped block having an upper opening, but it may be a tubular block such as a box culvert buried in the ground.

  A plurality of such gutter blocks 10 and 10 'are arranged along the curvature such as a corner of the road, and by the fitting recesses 21 and 21' between the opposing bottom 11 end edges of the blocks 10 and 10 '. A circular disc shaft fitting hole 20 is formed.

  In the disc shaft fitting hole 20, a disc shaft body 30 which is a central bottom portion of a connecting bent portion 40 formed between the gutter blocks 10 and 10 'is fitted. In other words, the fitting recess 21 of the gutter block 10 is formed in an arc shape along the outer peripheral contour of the disc shaft body 30.

  As shown in FIG. 2, the disc shaft body 30 includes a disc bottom portion 31 having a perfect circular shape in plan view, and a handle portion 32 protruding upward at the center of the disc bottom portion 31.

  The disk shaft body 30 is formed to be thinner than the bottom portion 11 of the gutter block 10, and when the blocks 10 and 10 'are arranged along the corners of the gutter, the blocks 10 and 10' are fitted into the outer circumference. The recesses 21 and 21 'are externally fitted and joined together to rotatably connect the blocks 10 and 10'.

  As shown in FIG. 2, the inner and outer spaces of the disk shaft body 30 fitted into the disk shaft fitting hole 20 in the connecting bent portion 40 of the gutter blocks 10, 10 'are filled with respective inner and outer spaces. Two replenishment blocks 50 are formed by pouring concrete.

  The replenishment block 50 is formed by cast-in-place, and a separately provided mold is installed in the inner and outer voids of the connecting bent portion 40, which has a triangular shape in a plan view, and concrete is poured into the mold to be solidified and seen in a plan view. It is formed in a substantially triangular shape. The replenishment block 50 includes an inner replenishment block 50a that replenishes the inside of the connection bent portion 40 and an outer replenishment block 50b that replenishes the outside of the connection bent portion 40.

  In this way, the replenishment block 50 that is formed by casting on the site is joined to the bottom portion 11 of the gutter block 10 and the disc shaft body 30 to form the fan-shaped bottom portion 51 that forms the bottom portion of the connecting bent portion 40, and the fan-shaped bottom portion 51. A bent side wall portion 52 that is joined to the side walls of the rising side groove blocks 10 and 10 ′ from the outer edge to form a side wall portion of the connecting bent portion 40.

  The bent side wall portion 52 of the outer replenishment block 50b is bent so as to be recessed inside the central portion, and the bent side wall portion 52 of the inner replenishment block 50a is bent so as to project inside the central portion. There is.

  The bent side wall portion 52 is a gap formed by the bottom end surfaces of the gutter blocks 10 and 10 and the outer peripheral side surface of the disk shaft body 30 other than being surrounded by the fitting recesses 21 and 21 ′ fitted around the disk shaft body 30. The thickness of the space is set to be substantially the same as the thickness of the side walls of the gutter blocks 10 and 10 ′, and the inner and outer surfaces thereof are substantially flush with the side wall surfaces in a state of being joined to the side walls of the gutter blocks 10 and 10 ′. It is formed by the inflow solidification of concrete so that

  Further, in the edge portion of the fan-shaped bottom portion 51 of the replenishment block 50, similarly to the gutter block 10, an arc-shaped fitting recess 53 along the outer periphery of the disc shaft body 30 is formed by casting in situ.

  The fan-shaped bottom portion 51 is provided in a clearance space formed by the bottom end surfaces of the gutter blocks 10 and 10 and the outer peripheral side surface of the disk shaft body 30 other than being surrounded by the fitting recesses 21 and 21 ′ fitted around the disk shaft body 30. On the other hand, its thickness is set to be substantially the same as the thickness of the bottom portion 11 of the gutter block 10, and concrete is poured and solidified so that the inner and outer bottom surfaces thereof are substantially flush with the inner and outer bottom surfaces of the bottom portions 11 of the gutter blocks 10 and 10 '. Then formed.

  In other words, the fitting recess 53 of the replenishment block 50 is formed at the tip of the fan-shaped bottom portion 51 with the gap space formed by the bottom end faces of the gutter blocks 10 and 10 and the outer peripheral side surface of the disc shaft body 30 as the mold. It is formed by casting along the outer peripheral contour of 30.

  Further, as shown in FIGS. 2 and 3, fitting protrusions 54 and 54 ′ extending in the up-down direction are provided on both end surfaces of the replenishment block 50, and the left and right sidewalls of the gutter blocks 10 and 10 ′ are provided. It is configured to be fitted and joined to the fitting recesses 13 and 13 'formed by extending the ends. That is, the fitting projections 54, 54 'of the refill block 50 are formed using the fitting recesses 13, 13' of the gutter blocks 10, 10 'as a mold.

  Thus, without preparing various blocks in advance for each curvature of the bent side wall portion 52, the disk shaft body 30 fitted in the disk shaft fitting hole 20 in the connecting bent portion 40 of the gutter blocks 10 and 10 '. It is possible to form the replenishment block 50 that realizes reliable watertightness in accordance with the curvature of the bent side wall portion 52 at various sites by performing simple in-situ casting on the inner and outer spaces around the center.

  By connecting the gutter blocks 10 and 10 ′ to each other via the connecting structure A configured in this way, the rectangular front and rear gutter blocks 10 and 10 ′ have a bottom end edge portion around the disc shaft body 30. It can be arranged so as to match the rounded curvature shape of the connection bent portion 40 while finely adjusting the connection angle by rotating through the fitting recesses 21 and 21 '.

  Further, the front and rear side groove blocks 10, 10 'can be firmly connected to the disc shaft body 30 via the fitting recesses 21, 21'. It should be noted that concrete is poured into the upper part of the disc shaft body 30 so as to be flush with the bottom part 11 of the gutter blocks 10, 10 ′.

  The disc shaft body 30 and the disc shaft fitting hole 20 formed as described above have a perfect circular shape as shown in FIGS. 1 and 4, and therefore, the disc shaft body 30 and the disc shaft fitting hole 20 are separated from each other. It is possible to perform block coupling in which the joints of the gutter blocks 10 and 10 ′ that are joined to each other in the front and rear via the gap are bent to form the connection bent portion 40 of the gutter.

  In addition, as shown in FIGS. 4 and 5, the upper surface water passage holes 61 of the upper lid block 60 that closes the upper surfaces of the continuous blocks 10 and 10 ′ can be arranged in a fixed length, and the connecting bent portion 40. The outer appearances of the upper surface water holes 61 of the upper lid blocks 60, 60 '... are arranged at regular intervals so that the outer appearance of the blocks can be made beautiful.

  As shown in FIGS. 4 and 5, the upper lid block 60 has a shape in which the ends serving as the front and rear joints are cut obliquely so as to match the connection bending portion 40, and the oblique cutting portions 62 are joined to form the connection bending portion. The part 40 is formed.

  In such an upper lid block 60, if several kinds of inclination angles of the oblique cutting portion 62 are formed according to the rounded shape of the connecting bent portion 40, the cutting portion 62 corresponding to the rounded shape of the connected bent portion 40 in the field is formed. The blocks are selected and combined in the front and rear to be connected to form the connecting bent portion 40 that achieves a desired curvature.

  The disc shaft body 30 and the disc shaft fitting hole 20 are arranged at the central positions of the joints of the gutter blocks 10, 10 ', and as shown in FIGS. 4 and 5, the upper surface water passage hole 61 of the upper lid block 60 is previously covered with the upper lid. Two blocks 60 are formed, the inner width of which is 1/2 (1 / 2L) of the length L of the center line C of the upper lid block 60, and the distance between the upper surface water passage hole 61 and the end edge of the upper lid block 60 is The length is 1 / 4L.

  In addition, when installing the gutter block 10 and the upper cover block 60 in an area with a large amount of rainfall or a water collecting area where rainwater flows due to rainfall, an upper surface water passage hole 61 of the upper cover block 60 is added as necessary. .. For example, three upper surface water holes 61 may be formed in the upper lid block 60, and the inner width thereof may be 1/4 (1 / 4L) of the length L of the center line C of the upper lid block 60.

  Therefore, as shown in FIGS. 10 and 14 (a), when the connecting bent portion 40 is formed, the upper surface water holes 61 of the upper lid block 60 are formed in the front and rear upper lid blocks 60, 60 '. It is possible to form the beautiful upper lid blocks 60, 60 ', etc. in which the upper surface water passage holes 61 are all equally spaced by 1/2 L and arranged in order.

  As described above, the left and right standard lengths on the center line C of the upper lid block 60 provided with the upper surface water passage holes 61 are set to be constant lengths, so that the upper surface water passage holes 61 are formed at equal intervals in the connecting bent portion. It is possible to make a fixed-length combination block in the connecting bent portion.

  As described above, according to the present invention, the corner portion of the gutter corresponding to the corner of the road can be easily and inexpensively used by using the existing linear gutter block without lowering the drainage function of the gutter. It is possible to provide a connection structure for the gutter blocks that can form the groove.

A Block connection structure for gutter 10 Gutter block 20 Disc shaft fitting hole 21 Fitting recess 30 Disc shaft 31 Disc bottom 32 Handle 40 Connecting bent portion 50 Replenishment block (50a inner replenishment block, 50b outer replenishment block)
51 fan-shaped bottom 52 bent side wall 53 fitting recess

Claims (1)

In a plurality of gutter blocks arranged at the corners of the gutter,
Providing semicircular fitting recesses for forming circular disk shaft fitting holes at the bottom end edges facing each other,
Characterized by forming a replenishment block by in-situ casting to replenish the inner and outer space portions of the disc shaft body fitted in the disc shaft fitting holes in the connecting bent portions of the opposing gutter blocks, respectively. The connection structure of the gutter block at the corner part of the gutter.

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