JP2002364063A - Concrete catch basin - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structurally new concrete catch basin which can adequately secure required durability, load bearing properties, etc., while making a basin body formed with great design freedom. SOLUTION: A plurality of supporting protrusions 32, which are protruded from the side of at least either the basin body 14 or a lid body 16, are fixed to positions, except upper parts of openings 18 of side surfaces, on a part 22 on which the lid body 16 is placed around an upper opening 20 of the basin body 14, so that the lid body 16 can be supported on the basin body 14 via the supporting protrusions 32.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water collecting basin installed at a connecting portion such as an intersection in a water channel such as a drain pipe or a gutter and connecting the water channel, and more particularly, has an upper end opening covered with a metal lid. It relates to a concrete water collecting basin.

[0002]

2. Description of the Related Art Conventionally, in a waterway composed of a pipe or a groove through which rainwater, irrigation water, drainage, or the like is passed, the waterway is branched or merged, and foreign matters such as mud and dust mixed in the water are separated and removed. For this purpose, a water collecting basin (including a water basin, etc .; the same applies hereinafter) is installed at an appropriate place. As such a water collecting basin, generally, a side opening for connecting a water channel is formed in the peripheral wall of a concrete basin having a polygonal cylindrical peripheral wall, and an upper end opening of the basin main body is formed. A structure in which a part is covered with a removable lid is employed.

[0003] Such a catchment basin is often installed at the center of a road or at the shoulder of a road, and heavy objects such as vehicles act as direct load and earth pressure from the side. , Large load strength is required.

[0004] Therefore, when a large load strength is required, a metal lid such as a grating is used instead of a concrete lid.

However, the present inventors have studied and found that
If a metal lid is used for the purpose of withstanding the load capacity of the water collecting basin, when a large load is applied, cracks are likely to occur at the upper edge of the peripheral wall opening of the basin body, and there is a possibility that it may be broken. It has been found that it is difficult to say that the required load bearing strength can be sufficiently satisfied.

[0006]

The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide a novel structure capable of greatly improving load-bearing performance with a simple structure. Another object of the present invention is to provide a concrete water collecting basin having a simple structure.

[0007]

That is, in order to solve the above-mentioned problems, the present inventors perform stress analysis by FEM (finite element method) and a large number of experiments on a water collecting basin employing a metal lid. Investigations have shown that when a metal lid is used, the lid itself cannot be deformed from the lid to the box body due to the fact that the lid itself is allowed to be elastically deformed during loading of an automobile or the like. As a result of the intensive load being transmitted in a uniform distribution, especially when the intensive load is transmitted above the side opening in the cascade body with a small effective cross-sectional area of the member, the rupture may occur to such a part. I learned that intensive stress would be caused, and
The present invention has been completed based on such new knowledge.

Hereinafter, embodiments of the present invention thus made will be described. The components employed in each of the embodiments described below can be employed in any combination as possible. Further, aspects or technical features of the present invention include:
It is understood that the present invention is not limited to the following description, but is described in the entire specification and drawings, or is recognized based on the inventive concept that can be understood by those skilled in the art from the description. Should.

First, a first aspect of the present invention is to provide a box body having a polygonal cylindrical peripheral wall portion and a metal lid, and a side opening for connecting a water channel is provided in the peripheral wall portion of the box body. Is formed, and an upper opening of the basin body is covered by the lid, and in a concrete water collecting basin installed at a connection portion of a water channel, the lid body around the upper opening of the basin body is provided. A plurality of support projections protruding from at least one of the side of the box body and the lid are fixedly provided at a position avoiding above the side opening at the mounting portion, and the support projections are provided through the support projections. It is characterized in that the lid body is supported by the main body.

[0010] In the concrete water collecting basin having the structure according to the present embodiment, a supporting projection is provided at a portion where the basin main body and the lid are overlapped with each other at a position above the side opening of the basin main body. A gap having a size corresponding to the protrusion height of the portion is formed. Therefore, even if a large load is applied to the lid and the lid is elastically deformed, the gap between the support projections reduces or avoids the lid coming into contact with the upper side opening of the box body. Since the large load exerted on the lid is effectively applied to the high strength portion where the side opening is not formed in the main body of the basin, the large withstand load of the concrete water collecting basin as a whole is obtained. The strength can be exhibited efficiently.

The specific shapes and structures of the basin main body and the lid are not particularly limited, and are appropriately set according to the use of the concrete water collecting basin, the load conditions, and the like. Yes, for example, as the basin body, various peripheral wall shapes such as a triangular cylindrical shape, a square cylindrical shape, or a cylindrical shape can be adopted, and the bottom wall portion can be integrally formed as necessary, As the lid, a metal plate such as a manhole cover, a perforated plate having a through hole such as grating, or the like can be employed. In addition, the side opening of the basin body is formed in advance, and, as described in, for example, Japanese Patent Application Laid-Open No. Hei 10-237937, the rear side opening is appropriately adjusted according to the shape and size of the water channel to be connected. It is also possible to form by processing, and it is also possible to form a cutting groove in a portion where a side opening is to be formed by post-processing or to make the portion to be formed thinner. Furthermore, the support protrusion may be provided on either the basin main body or the lid, but particularly when the receiving portion of the lid in the basin main body is formed of concrete, in order to prevent the support protrusion from being chipped or the like. It is desirable to fix the support projection only to the lid.
The shape, size, number, etc. of the support protrusions are not particularly limited, and only the support protrusions should be placed at positions avoiding above the side openings in the cell body in consideration of the shape and structure of the cell body. The lid body is formed so as to be supported by the cascade main body through the intermediary of the cascade main body. For example, the lid bodies are provided independently for a plurality of corners (corner portions) in the cascade main body.

According to a second aspect of the present invention, in a concrete water collecting basin having a structure according to the first aspect, a reinforcing bracket extending in an axial direction with respect to a corner portion of the main body is buried. At the same time, the lid is supported at the corner portion via the support projection. In this embodiment, the load applied from the lid to the box body via the support protrusion is intensively applied to a plurality of corner portions of the box body. Since the strength against buckling and buckling is improved by the reinforcing metal fittings buried and fixed in the concrete, the load-bearing strength of the entire water collecting basin can be further efficiently improved.

Further, in the concrete water collecting basin having the structure according to the second aspect, a connecting reinforcing metal fitting for connecting the plurality of reinforcing metal fittings arranged at the corner portion of the main body to each other in a circumferential direction. It is also effective to adopt the method described above, whereby the outer peripheral portion of the side opening can be surrounded by the reinforcing metal and the connecting reinforcing metal, so that the strength of the upper portion of the side opening, which tends to cause a problem in strength, can be improved. .

As the above-mentioned reinforcing metal fittings and connecting reinforcing metal fittings, for example, a steel material such as a reinforcing steel bar or an extruded member is suitably employed.

Further, a third aspect of the present invention is directed to a concrete water collecting basin having a structure according to the first or second aspect, wherein the upper opening of the main body of the basin has an upper end face opened. A receiving frame fitting is provided, and the lid is supported by the receiving frame fitting via the supporting projection. In this embodiment, the transmission of the external load applied to the lid to the box body can be dispersed by the frame fittings interposed between the lid and the box body. By reducing or eliminating the concentration of the load, it is possible to further improve the load-bearing performance of the box body.

In the third aspect, the support projection is provided to project from at least one of the lid and the frame fitting. In addition, it is desirable in terms of strength that the receiving frame metal fitting is entirely placed in close contact with the surface of the box body. Furthermore, preferably, the receiving frame fitting has an annular structure that covers the entire upper end surface of the basin main body, and more preferably, the inner peripheral edge and the outer peripheral edge of the receiving frame fitting are moved downward in the axial direction. A structure is adopted in which the horn is bent toward the inner peripheral surface and the outer peripheral surface of the peripheral wall portion of the cascade main body and overlapped, and a fragile corner portion of the upper opening of the basin main body is reinforced.

Still further, according to a fourth aspect of the present invention, in the concrete water collecting basin having the structure according to the third aspect, the receiving frame fitting is replaced with a reinforcing fitting having the structure according to the second aspect. It is characterized by being fixed by welding or the like. In such an embodiment, for example, when molding the truss body, by filling concrete into a molding cavity in a mold housing the assembly of the receiving frame fitting and the reinforcing fitting, the gusset body having the receiving frame fitting is removed. , And can be easily manufactured. In addition, since the receiving frame is fixed to the reinforcing metal, the receiving frame can be fixed to the measure body with higher strength.

According to a fifth aspect of the present invention, there is provided a concrete water collecting basin having a structure according to any of the first to fourth aspects, wherein the upper opening portion of the basin main body is provided in a circumferential direction. Forming a continuous fitting recess, the lid was fitted in the fitting recess and arranged.
Features. In this aspect, the state of attachment of the lid to the box body is further stabilized, and for example, the rebound of the lid due to the effect of an impact load when the vehicle passes can be reduced or prevented. More preferably, bolt fastening means for detachably fixing the lid to the box body is employed. Further, the fitting recess has a depth dimension substantially equal to a thickness dimension of the lid body, so that the lid body and the peripheral wall of the casing main body can be formed under the cover state in which the lid body is attached to the casing body. It is desirable that the upper end surface of the portion is substantially flush.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, in order to clarify the present invention more specifically, embodiments of the present invention will be described in detail with reference to the drawings.

First, FIGS. 1 to 3 show a gutter collecting basin 10 as an embodiment of the present invention. This water collecting basin 10 is installed on a water channel including a plurality of gate-shaped side grooves 12 (see FIG. 9), and a basin body 14
And a grating lid 16 as a lid. In the following description, the up-down direction refers to the up-down direction in FIG. 1 in principle.

More specifically, the basin body 14 is constituted by a rectangular cylindrical peripheral wall having four side wall plates, and is made of concrete. In three of these four side wall plate portions, connection window portions 18 as side surface openings are respectively formed so as to penetrate in the plate thickness direction. These connection windows 18 are provided at positions slightly deviated above the center of each side wall plate, and have a substantially rectangular hole shape. Further, in the present embodiment, the inner peripheral surface of each connection window portion 18 is provided with a slight taper that gradually becomes smaller from the outside to the inside.

At a position slightly axially below the opening end face 21 of the upper opening 20 of the cell body 14, a support frame 22 as a mounting portion having a rectangular frame plate shape is provided.
Projecting inward in the direction perpendicular to the axis from the inner peripheral surface of the main body 14, whereby the upper opening 20 of the cell body 14 is formed into a stepped opening shape including the opening end face 21 and the upper surface of the support frame 22. ing. As is clear from this,
In the present embodiment, the support frame 22 is connected to each connection window 1.
8 includes a part of the outer peripheral edge of the upper end.

Further, on the open end face 21 of the measure body 14,
A metal plate 24 as a receiving frame is attached almost entirely. The metal plate 24 is made of thin stainless steel or the like, and includes an upper plate portion 23 that is superimposed on the opening end surface 21 of the measuring body 14 and a support frame portion 22.
The lower plate portion 25 having a rectangular frame shape slightly smaller than the upper plate portion 23 overlapped with the step portion 2 having a rectangular cylindrical shape
It is formed with a step-shaped section connected at 7. The metal plate 24 is attached so as to cover the entire upper end surface of the support frame portion 22 from the open end surface 21 of the measure main body 14. The outer peripheral edge and the inner peripheral edge of the metal plate 24 are bent downward, and the outer peripheral rib 29 and the inner peripheral rib 31 each having a rectangular cylindrical shape are integrally formed. Surface and the inner peripheral surface of the support frame portion 22 in close contact with each other, and wrapped around the inner peripheral surface and the outer peripheral surface of the upper opening 20 so as to be superimposed over substantially the entire upper opening 20. Have been. In addition, four fixing screw holes 26 are formed near the corners of the support frame 22 so as to penetrate the metal plate 24. Furthermore, a large number of uneven portions are formed on the upper surface of the upper plate portion 23 of the metal plate 24, and have an anti-slip function.

At each of the corners (columns) of the main body 14, angle irons 28 as reinforcing metal fittings are provided.
It is buried so as to extend in the axial direction. As is well known, these angle irons 28 have a substantially constant L-shaped cross section in the longitudinal direction, and are formed of a rigid material such as stainless steel. In particular, in the present embodiment, as shown in FIGS. 4 and 5, the concave inner peripheral surfaces of the upper ends of the angle irons 28 are respectively formed on the outer peripheral surfaces of the corners of the step portion 27 of the metal plate 24. They are superimposed and fixed by welding or the like.

Furthermore, rectangular frame-shaped connecting fittings 30 made of reinforcing steel or the like are embedded in the upper and lower outer peripheral edges of the connecting window 18, respectively. In addition, these connecting fittings 30
Are fixed to each angle iron 28 by welding or the like, as shown in FIGS. 4 and 5, so that a plurality of angle irons 28 are wound in the circumferential direction of the box body 14. And fixedly support each other.

On the other hand, the grating cover 16 is shown in FIGS.
As shown in FIG. 7, it has a well-known structure in which a plurality of thin rectangular plates are arranged in a lattice shape inside a rectangular frame, and is formed of a rigid material such as cast iron. Further, in the present embodiment, in particular, a plurality of support plate fittings 32 as support projections are provided on the bottom surface of the grating cover fitting 16. These support plate fittings 32 have a thin rectangular plate shape and are fixed to each corner of the grating cover fitting 16 by welding or the like.

Further, four supporting fittings (not shown) are fixed to a gap at a predetermined position formed by a lattice on the outer peripheral edge of the grating cover fitting 16.
A fixing bolt 34 is provided for each of these support fittings.
Is inserted. Then, the fixing bolts 34 are screwed into the fixing screw holes 26 of the support frame portion 22, so that the grating cover metal fitting 16 covers the upper opening 20 of the measure main body 14, and is attached to the measure main body 14. It is adapted to be fixedly and removably mounted to this. As a result, the main body 14 and the grating lid 16
Is formed. In addition, as is clear from the above description, in the present embodiment, a fitting recess is formed by the upper surface of the support frame portion 22 and the inner peripheral surface of the upper opening 20. The height (plate thickness) of the grating cover 16 including the support plate 32 is substantially the same as the length from the upper surface of the support frame portion 22 to the opening end surface 21 of the box body 14. Thereby, when the grating cover metal fitting 16 is attached to the box body 14,
The upper surface of the grating cover metal fitting 16 and the opening end face 21 of the measuring body 14 are made substantially flush. In addition, as shown in FIGS.
Metal plate 24, angle iron 28 and connecting fittings 30, 3
0 is embedded in the main body fitting 36.

Here, as shown in FIGS. 1 and 8, the support plate metal fitting 32 disposed at the corner of the bottom surface of the grating cover metal fitting 16 is arranged so as to avoid above the connection window 18. It is mounted on a corner portion (corner portion) of the support frame portion 22. As a result, a portion having a height corresponding to the thickness of the support plate 32 above the connection window 18 where the support plate 32 is not provided between the support frame 22 and the grating cover 16. A gap is formed. In short, in this embodiment, when a large dynamic load or a static load is applied from the upper part, the load transmission from the lid fitting 16 to the cell body 14 is performed by a plurality of support plate fittings as shown in FIG. The load mainly applied to the corner portion of the measure body 14 via 32 and applied to the wall located above the connection window 18 can be reduced or avoided by the presence of the gap. .

Then, such a water collecting basin for gutter 10 is
As shown in FIG. 9, each connection window 18 is connected to an opening of the gate-side groove 12, and is installed at an intersection of a water channel formed by joining a plurality of the gate-side grooves 12. Is done. It should be noted that the specific shape and structure of the gate-side groove 12 are not particularly limited, and it is needless to say that any groove having a conventional structure other than the gate-side groove 12 as shown can be employed. .

The gutter collecting basin 10 having the above-described structure.
In the above, when a load is applied, the stress generated in the upper part of the connection window 18 having a small strength of the member can be reduced or avoided. Therefore, in the related art, a metal lid is provided on the upper part. A great improvement in load bearing strength can be achieved as compared to a concrete water collecting basin having a structure.

In addition, in the present embodiment, the grating cover 16 having a rectangular plate shape is supported at four points at the corners of the box body 14 via the support plate 32, thereby achieving a good balance. , The more stable basin body 1
4 can be supported.

In the present embodiment, the angle iron 28 is embedded in each corner of the basin body 14 and the connection window 18
The connection metal fittings 30 are buried in the upper and lower outer peripheral edges, respectively, and the angle irons 28 are connected to each other by being wound in the circumferential direction of the box body 14, so that stress is concentrated. The load-bearing strength of each corner of the basin body 14 is further improved, and the high-strength gutter catchment basin 10 can be realized more advantageously.

Furthermore, in the present embodiment, since the grating cover 16 is fitted and supported by the metal plate 24 disposed in the upper opening 20 of the basin body 14, the workability of assembling the cover 16 is improved. The grating cover 1 in the direction perpendicular to the axis can be improved more advantageously.
The relative displacement between 6 and the main body 14 can be reduced or avoided.

Further, in the present embodiment, the metal plate 24, the angle iron 28 and the connection fittings 30, 30 are
The main body fittings 36 as shown in FIGS.
4 can be easily formed simply by pouring concrete into a mold having a predetermined shape and inserting the main body fitting 36 into the mold, so that manufacturability and assembling workability can be advantageously improved. In addition, since the metal plate 24 constitutes a part of the main body fitting 36, the main body fitting 36 is set at a predetermined position in the concrete form, thereby positioning the metal body 24 to the upper opening 20 of the box body 14. The arrangement can be realized advantageously.

In the present embodiment, the size of the opening of the gate-side groove 12 connected to the measuring body 14 is reduced by the fact that the connecting window 18 of the measuring body 14 is tapered. In the case of being larger than or equal to the portion 18, it is possible to reduce or avoid the accumulation of mud, dust and the like mixed in the water on the outer peripheral edge of the connection window portion 18. The size of the opening of the gate-shaped groove 12 connected to the basin body 14 is not limited to the case where the size of the opening of the gate-shaped groove 12 is smaller than the connection window 18. When the 12 openings are connected, the open portion of the connection window 18 is filled with concrete.

Further, in the grating cover 16 having the support plate 32 of the present embodiment, only by appropriately changing the height of the support plate 32, the fitting cover provided in the upper opening of the box body can be changed. It can easily cope with various concrete catch basins with different depths of recesses.

Further, in the present embodiment, since the bottom plate of the basin body 14 is not formed in advance, it is possible to strike the bottom plate of the basin body 14 at the time of installation in a gutter channel, for example. The height of the cell body 14 can be adjusted only by appropriately changing the height (plate thickness) of the bottom plate.
4 can further expand the applicable range in various waterways.

Further, in this embodiment, the shape and size of the connection window 18 can be appropriately changed according to the shape and size of the gutter channel at the site. For example, a gutter collecting basin as shown in FIGS. 10 to 13 can be realized. In FIGS. 10 to 13, in order to facilitate the understanding,
In the drawings, the same reference numerals are given to members and parts having the same structure as in the present embodiment.

First, the drainage catch basin 38 shown in FIG.
Are connected to a pair of side wall plates, respectively.
An opening 8 of the gate-shaped side groove 12 is connected to each connection window 18 and installed in a straight gutter channel.

Further, in the drainage collecting basin 40 shown in FIGS. 11 to 12, in three of the four side wall plate portions, connection windows 42 each having a substantially inverted trapezoidal shape are formed in the plate thickness direction. For example, as shown in FIG. 13, it is installed at the intersection of a gutter channel including a number of U-shaped gutters 44.

Next, FIG. 14 shows a precast product 4 constituting a gutter collecting basin according to a second embodiment of the present invention.
6 is shown. In FIG. 14, in order to facilitate the understanding, members and portions having the same structure as the first embodiment are respectively shown in the drawing.
The same reference numerals as in the first embodiment are used.

More specifically, the precast product 46 comprises:
It is constituted by a rectangular cylindrical body-shaped peripheral wall provided with four side wall plates, and is made of concrete. In addition, a main body fitting (36) is embedded in the precast product 46 as shown in FIGS. Thereby, the metal plate 24 is placed in the upper opening 20 of the precast product 46, each angle iron (28) is placed in each column (corner portion) of the precast product 46, and the precast product 4
In the vicinity of the upper and lower end edges of 6, each connecting metal fitting (30) is positioned and arranged.

For the production of such a precast product 46, a method is employed in which concrete is poured into a concrete mold having a predetermined shape, and at the same time, the main body fitting 36 is inserted into the mold.

In the present embodiment, the work of installing the gutter collecting basin in the gutter channel using the precast product 46 involves transporting the precast product 46 previously manufactured by a manufacturing facility such as a factory to the installation site. At the same time, after the bottom plate (not shown) of the basin body 14 is hit on the planned crossing portion of the gutter channel, the size and shape of the opening of the gutter are appropriately adjusted as shown in FIG. Then, the connection window 18 is placed on the bottom plate of the precast product 46 at the site or in a factory, and the connection window 18 and the side groove are connected to each other. ing. Whether the attaching work of the separately formed grating cover (16) is performed in advance at a factory or the like or at the site can be appropriately set according to the conditions of those skilled in the art.

Therefore, in the precast product 46 having the above-described structure, as shown in FIG. 15, the connection window 18 can be cut into an appropriate shape and size. In this way, it is possible to advantageously realize the box body 14 corresponding to the openings of the side grooves of various shapes.

Although the embodiments of the present invention have been described in detail above, these are merely examples, and the present invention
The specific descriptions in these embodiments should not be construed as limiting in any way.

For example, in the above-described embodiment, a rigid material such as a metal material (support plate 32) is employed for the support projection of the lid. However, the support projection has a cushioning property for absorbing impact. It is also possible to use an elastomer material or the like.

Further, it is also possible to provide a bolt insertion hole through which the fixing bolt 34 is inserted through the support plate 32, and to fix the grating cover 16 to the cell body 14 on the corner of the cell body 14. It is.

Further, in the above-described embodiment, the support metal fitting 32 is formed in a substantially columnar portion of the box body 14 (a corner portion of the support frame 22).
Although it is placed so as to fit on the top, it may extend slightly to the outer peripheral edge of the upper end of the connection window 18.

Further, the support frame portion 22 of the main body 14 is
It is provided as appropriate according to the use conditions, manufacturability, and the like of the measure body 14, and is not essential. Also, the support frame 2
In the case where 2 is not provided in the upper opening 20 of the measure main body 14, the grating lid 16 is directly placed on the opening end face 21 of the upper opening 20 and is fixed to the measure main body 14.

Further, the measure body 1 of the grating cover fitting 16
4 is not limited to the one shown in the example. For example, a fixing bolt fixed to the support frame portion 22 of the basin body 14 such that the screw thread extends upward is used. It is also possible to fix the lid 16 to the box body 14 by inserting the tip of the bolt into a fixing nut by inserting the bolt into the gap of the grating lid 16.

In addition, the concrete water collecting basin of the present invention can be installed in a gutter channel including a gate-shaped gutter, a U-shaped gutter, and the like, as shown in FIG. It is also possible to install a concrete collecting basin in the drainage pipe.

In addition, although not enumerated one by one, the present invention
Based on the knowledge of those skilled in the art, various changes, modifications, improvements, and the like can be made, and unless such embodiments depart from the spirit of the present invention.
Both are included in the scope of the present invention,
Needless to say.

[0054]

As is apparent from the above description, in the concrete water collecting basin having the structure according to the present invention,
A gap corresponding to the protruding height of the support projection is formed between the opposing surface of the lid and the peripheral wall of the measure body above the side opening, and a direct load from the lid to the peripheral wall of the measure body is formed. The transmission can be reduced or avoided, whereby the stress generated in the upper part of the side opening having a small load-bearing strength can be reduced particularly in the peripheral wall portion of the basin main body, so that the concrete water collecting basin as a whole can withstand. An improvement in load strength can be achieved.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a gutter collecting basin as one embodiment of the present invention.

FIG. 2 is an explanatory perspective view showing a gutter collecting basin shown in FIG. 1;

FIG. 3 is a longitudinal perspective view showing a basin main body constituting the drainage basin shown in FIG. 1;

FIG. 4 is a perspective view showing a main body fitting constituting the gutter collecting basin shown in FIG. 1;

FIG. 5 is a bottom perspective view showing the main body fitting shown in FIG. 4;

FIG. 6 is an explanatory perspective view showing a grating lid fitting that constitutes the gutter collecting basin shown in FIG. 1;

FIG. 7 is a bottom perspective view showing the grating lid shown in FIG. 6;

FIG. 8 is an explanatory diagram of the dynamics of the gutter catch basin shown in FIG. 1;

FIG. 9 is an explanatory perspective view showing a specific application example of the gutter collecting basin shown in FIG. 1;

FIG. 10 is an explanatory perspective view showing a specific application example of a gutter collecting basin as another embodiment of the present invention.

FIG. 11 is an exploded perspective view showing a gutter collecting basin as still another embodiment of the present invention.

FIG. 12 is an explanatory perspective view showing a gutter collecting basin shown in FIG. 11;

FIG. 13 is an explanatory perspective view showing a specific application example of the gutter collecting basin shown in FIG. 11;

FIG. 14 is a perspective view showing a precast product constituting a gutter collecting basin as a second embodiment of the present invention.

FIG. 15 is an explanatory perspective view showing one manufacturing process of the drainage catchment basin as the second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF REFERENCE NUMERALS 10 Water collecting basin for gutter 14 Masu main body 16 Grating lid 18 Connection window 20 Upper opening 22 Support frame 32 Support plate metal

Claims (5)

[Claims] 1. A measure main body having a polygonal cylindrical peripheral wall portion, a metal lid, a side opening for connecting a water channel is formed in the peripheral wall portion of the measure main body, and the measure main body is provided. The upper opening of the container is covered with the lid, and the concrete water collecting basin is installed at a connection part of a water channel. A plurality of support protrusions projecting from at least one of the side of the main body and the lid are fixed to a position avoiding the upper side, and the lid is attached to the main body via the support protrusions. A concrete water collecting basin characterized by being supported. 2. A method according to claim 1, wherein a reinforcing member extending in an axial direction is buried in a corner portion of said basin body, and said lid is supported at said corner portion via said support projection. 2. The concrete water collecting basin according to 1. 3. A receiving frame fitting is provided on an upper end surface of the main body where the upper opening is opened, and the lid is supported by the receiving fitting via the supporting projection. The concrete collecting basin according to claim 1 or 2, wherein 4. The concrete water collecting basin according to claim 3, wherein the receiving frame fitting is fixed to the reinforcing fitting according to claim 2 by welding or the like. 5. The fitting body according to claim 1, wherein a fitting recess is formed in the upper opening portion of the basin body, and the lid is fitted in the fitting recess. Concrete water collecting basin described in.