JP2000087438A - Draining grating, side gutter lid having the same, and manufacture of side gutter lid - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a draining grating allowing rainwater or the like falling on roads to be drained efficiently and constituting a structurally simple and inexpensive side gutter lid and to provide a structurally simple and inexpensive side gutter lid designed to allow rainwater or the like falling on roads to be efficiently drained and a method for manufacturing the same. SOLUTION: A draining grating 1 comprises a main body member 2 in the form of a rectangular tube comprising a pair of approximately L-shaped outer peripheral side face members 5 of the same shape combined to each other with a draining space part 6 formed therein, a lid member 3 fixed on a projecting edge 11 formed at the upper edge of the main body member 2, and a reinforcement guide member 4 assembled in a reinforcement guide groove 9 formed in the lower edge of the main body member 2. A stepped-down draining opening 17 communicated to the draining space part 6 is formed between each longitudinal side of the main body member 2 and the lid member 3. An approximately funnel-shaped draining guide recess part 26 (26a, b) is formed in the principal surface 24 of a concrete main body 21 embedded with the draining grating 1, corresponding to the draining opening 17.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gutter cover and a gutter which constitute a gutter device by closing the opening of a gutter such as a U-shaped groove laid along a road shoulder or the like. The present invention relates to a method for manufacturing a lid and a draining grating buried in the gutter to drain rainwater or the like into the gutter.

[0002]

2. Description of the Related Art Generally, a road or the like is provided with a U-shaped groove or the like along a road shoulder for draining rainwater or the like. In order to prevent danger and the like, a gutter lid for closing the opening is mounted on this gutter, and is configured as a gutter device. As the gutter lid, there are a gutter generally formed of concrete and having a function of exclusively closing the gutter, and a gutter having a function of draining rainwater or the like into the gutter. As for the side groove cover, for example, one having a water draining function is placed at an appropriate interval with respect to the side groove on which a normal specification is placed.

[0003] As a gutter having a drainage function, for example, a gutter for drainage having a grid formed in a frame body is embedded in a concrete body as described in Japanese Utility Model Publication No. 54-4827. I have. By the way, many rebars are embedded in the concrete body to improve the mechanical strength of the gutter, and it is troublesome to assemble these rebars in the concrete formwork and welding. As a result, there is a problem that the plating layer of the draining grating is damaged and durability is deteriorated, and a toxic gas is generated when the plating layer is burned.

[0004] For this reason, the applicant of the present invention has disclosed in
No. 48, the opposite side wall of the frame has an inverted U
A draining grating provided with a U-shaped locking wall so that a reinforcing bar can be inserted is provided. This draining grating facilitates the work of reinforcing bars in the concrete form by eliminating the need for a cutting process of the reinforcing bars, and eliminates the need for a welding process, thereby preventing the plating layer from being damaged, improving mechanical strength and The durability has been improved and it has been well received.

[0005]

By the way, the gutter cover is
If there is a step between the surface of the concrete body and the buried draining grating, rainwater etc. will not be efficiently drained into the gutter, so the draining grating is accurately installed in the concrete formwork and manufactured. There must be. The gutter lid is made of, for example, die-casting and draining grating, which has almost no dimensional change, and the concrete body has a step due to dimensional change due to molding distortion due to hardening of the concrete, thereby decreasing drainage efficiency. There was a problem.

Further, in the side gutter lid, since the drain opening cannot be formed with a large opening size in order to prevent danger or the like, the draining grating is opened inside the frame as described above. It was configured by combining a plurality of grids that regulate the dimensions. Grating for drainage is
For this reason, the number of constituent members has increased, and assembly has been troublesome, which has been relatively expensive. Therefore, in the side groove cover, since the expensive draining grating is used, there is a problem that the cost is increased as a whole.

SUMMARY OF THE INVENTION Accordingly, the present invention has been proposed to provide a draining grating which forms a low-cost gutter with a simple structure and at the same time drains rainwater or the like falling on a road efficiently. is there. Further, the present invention has been proposed for the purpose of providing a simple and inexpensive side gutter lid capable of efficiently draining rainwater or the like that has fallen on a road, and a method of manufacturing the same.

[0008]

According to the present invention, there is provided a draining grating according to the present invention, which comprises a main body member, a lid member, and a reinforcing bar guide member. The body member is
By combining a pair of outer peripheral side members formed in a substantially L-shape, it has an overall rectangular cylindrical shape in which a drainage space portion is formed, and the axes are aligned with one opening edge of the opposing side surface. An open, substantially U-shaped reinforcing bar guide groove is formed. The lid member is mounted on a mounting projection formed at one opening edge facing the reinforcing bar guide groove of the main body member, and has a plurality of drainage holes communicating with the drainage space. The rebar guide member has a semi-cylindrical shape, and is fitted to both ends of the rebar guide groove of the main body member so that the rebar guide member is bridged between opposing side surfaces of the main body member.

In the draining grating according to the present invention configured as described above, in a state where the lid member is combined with the main body member, the draining space portion is stepped down by opening both side portions in the longitudinal direction. A drain opening is formed. Grating for drainage is designed not only to drain rainwater on the road from drainage holes formed in the cover member but also to drainage openings formed by stepping down on both sides through drainage spaces through drainage grooves. Drain efficiently into Further, in the draining grating, since the outer peripheral side surface member constituting the main body member is formed by the same mold device, the cost can be reduced.

Further, the gutter cover according to the present invention for achieving the above-mentioned object is placed so as to close the opening of the gutter laid along the shoulder of the road or the like, and constitutes a gutter device together with the gutter. . One or more drainage gratings are embedded in the concrete body in the gutter. Grating for drainage is a body member, a lid member,
And a reinforcing bar guide member. The main body member has a drainage space formed therein, has a generally rectangular cylindrical shape, and is formed with a substantially U-shaped reinforcing bar guide groove that is aligned with the axis and opened at one opening edge of the opposing side surfaces. Become. The lid member is formed with a large number of drainage holes communicating with the drainage space of the main body member, and is combined with a mounting projection formed on the other opening edge facing the reinforcing bar guide groove of the main body member. The reinforcing bar guide member has a semi-cylindrical shape, and is fitted to both ends of the reinforcing bar guide groove of the main body member so as to be bridged between opposing side surfaces of the main body member. The gutter lid is formed on the surface of the concrete body corresponding to the drainage opening of the draining grating, with a drainage guide concave part having a funnel shape having an inclined surface gradually reducing the opening size inward. Become.

In the gutter for drain according to the present invention having the above-mentioned structure, the draining space is opened on both sides in the length direction of the drainage space in a state where the main body member and the lid member are combined. Thus, a drain opening portion that is stepped down is formed. The gutter lid drains rainwater and the like that has fallen on the road from the drainage hole formed in the lid member as well as the stepped drainage opening into the gutter through the drainage space, The efficiency of drainage can be improved. Further, the gutter cover is manufactured at a low cost as a whole, since the outer peripheral side surface member constituting the main body member is formed by the same mold apparatus to reduce the cost of draining grating.

Further, according to the method of manufacturing a gutter cover according to the present invention, a drainage space portion is formed inside to form a whole rectangular cylinder, and is opened with an axis coincident with one opening edge of opposing side surfaces. A main body member having a reinforcing bar guide groove formed therein, and a plurality of drainage holes communicating with the drainage space portion of the main body member, and a mounting projection formed at one opening edge facing the reinforcing bar guide groove portion. A semi-cylindrical rebar guide combined with a lid member combined on the portion and a reinforcing member guide groove portion of the main body member by fitting both ends to the main body member so as to be bridged between opposing side surfaces thereof. A part of the drainage space is opened between both sides in the longitudinal direction of the main body member and the lid member to constitute a stepped drainage opening. More drainage The use gratings to produce a gutter cover comprising embedded integrally in the concrete body.

[0013] The method of manufacturing the gutter cover includes at least a step of performing a predetermined reinforcing bar assembly including a step of penetrating the reinforcing bar into the reinforcing bar guide member to manufacture a combined structure of drainage grating and a plurality of reinforcing bars. A step of positioning and installing the combined structure of the draining grating and the reinforcing bar at a predetermined position in the concrete form with the opening on the reinforcing bar guide groove side and the drain opening on both sides closed. The gutter cover is manufactured through a step of pouring concrete into the concrete formwork and a step of removing the gutter cover formed from the concrete formwork after a predetermined curing period.

According to the method of manufacturing the gutter according to the present invention, the drain opening is stepped down by opening both sides in the longitudinal direction of the drain space in a state where the main body member and the lid member are combined. Since the draining grating is constructed as a single body, the rainwater falling on the road is drained not only from the drain hole formed in the lid member but also from the drain opening through the drain space. A gutter lid that efficiently drains into the gutter is manufactured. According to the method of manufacturing the gutter lid, the cost can be reduced by using the inexpensive draining grating in which the outer peripheral side surface member constituting the main body member is formed by the same die apparatus.

[0015]

Embodiments of the present invention will be described below in detail with reference to the drawings. The draining grating 1 shown in the drawings as an embodiment of the present invention has a relatively light weight and sufficient mechanical strength, and has a surface subjected to plating treatment for rust prevention, for example, a sheet metal, an aluminum die cast or the like. It is composed of a main body member 2, a lid member 3, and a pair of rebar guide members 4a, 4b formed of a synthetic resin or the like. Grating for draining 1
Although details will be described later, a pair of outer peripheral side members 5a and 5b
By combining these, the main body member 2 is formed to have a rectangular prismatic shape in which the drainage space 6 is formed as shown in FIG. Grating 1 for draining
Although the details will be described later, the side groove cover 20 buried in the concrete body 21 and closing the U-shaped groove 40 is configured.

The above-described reinforcing bar guide members 4a, 4b
Alternatively, a plurality of similarly configured members and parts, such as the outer peripheral side members 5a and 5b, are first described in this manner, but will be described below unless otherwise specifically required. 4 and an outer peripheral side member 5. In the present specification, terms indicating front and rear, up and down, or left and right directions are used with reference to FIG.

As shown in FIG. 2, the outer peripheral side member 5 has long sides 7a, 7b and short sides 8a, 8b integrally connected to one side edge of the long side 7 in an orthogonal state. And has a substantially L-shape. The outer peripheral side member 5 has a dimension in the length direction of the long side portion 7 slightly larger than the width dimension of the U-shaped groove 40. The outer peripheral side member 5 has a pair of reinforcing bar guide grooves 9 a and 9 a and a pair of reinforcing bar guide grooves 9 b and 9 at the lower edge of the long side portion 7.
b is formed. Each of these reinforcing bar guide grooves 9 has the same shape, and is formed of a U-shaped notch groove which is located at equal intervals from both ends of the long side portion 7 and opens at the lower end edge. Each rebar guide groove 9 is, as shown in FIG.
Locking projections 10a, 1 formed on the opening edge to face each other
The opening width is slightly narrowed by 0b.
The outer peripheral side member 5 is provided with protruding edges 11a and 11b for attaching the lid member 3 to the upper end edge, respectively.
These convex edges 11 are equally spaced from each other at both ends and both side edges of the outer peripheral side surface member 5.

The pair of outer peripheral side members 5a and 5b have the same shape as each other from the above-described configuration, and are formed by the same die apparatus. A pair of outer peripheral side members 5
As shown in FIG. 1, a and 5b are combined so that the inner edge of the long side 7 on one side abuts the leading edge of the short side 8 on the other side. The pair of outer peripheral side members 5a and 5b form the rectangular cylindrical main body member 2 by integrating the butted inner surface of the long side portion 7 and the leading edge of the short side portion 8 by welding or the like.

The outer peripheral side surface member 5 has two rebar guide grooves 9 formed on the long side portion 7 respectively, but the present invention is not limited to this configuration. The outer peripheral side member 5 has a gutter cover 20 embedded in a concrete body 21 as described later.
Is formed, a number of reinforcing bar guide grooves 9 corresponding to the number of reinforcing bars 22 penetrating the draining grating 1 may be formed. In this case as well, the outer peripheral side surface member 5 has the reinforcing bar guide grooves 9 formed at equal intervals. Further, the outer peripheral side member 5 has one protruding edge portion 11 protruding from the upper end edge of the long side portion 6, but the present invention is not limited to this configuration. It may be formed.

As shown in FIG. 1, the lid member 3 is mounted on the protruding edge portion 11 of the main body member 2 so as to close the upper end opening of the drainage space 6. The lid member 3 is
Its width is slightly larger than the width of the main body member 2, and its length is slightly larger than the length of the protruding edge 11. The locking protrusions 12a and 12b are formed at both ends of the cover member 3 with bending amounts slightly smaller than the height of the protrusion 11. As shown in FIGS. 1 and 2, the lid member 3 has first drain holes 13a and 13b each having a slightly large elliptical shape formed at positions near both ends. , A number of second drain holes 14a to 14n each having a slightly small elliptical shape are formed in two rows.

The cover member 3 is formed with water drain holes 13 and 14 by press working. The water drain holes 13 and 14 are formed by punching from the upper surface side.
The cover member 3 has such a characteristic that the inner diameter of a hole formed when a through-hole or the like is punched by pressing a metal plate or the like is gradually increased in the punching direction. Drainage holes 13 and 14 having a large diameter on the inner surface side are formed. In the lid member 3, clogging of foreign substances by the drain holes 13 and 14 having such a shape is suppressed.

The cover member 3 has a mounting hole 15 formed at the center thereof and a pair of positioning holes 16a and 16b with the mounting hole 15 interposed therebetween.
The mounting hole 15 is provided with the draining grating 1 as described later.
Acts as a mounting hole when fixing the inside of the concrete formwork 30. The positioning hole 16 acts as a positioning hole for defining the position of the draining grating 1 when the draining grating 1 is installed on the concrete formwork 30.

In the lid member 3 configured as described above, the locking projection 12 is engaged with both side edges of the projection 11 so that the main body 2
Combined with The lid member 3 is fixed to the main body member 2 by integrating the inner surface thereof and the protruding edge portion 11 by welding or the like. When the lid member 3 is attached to the main body member 2, both side edges 3 a and 3 b in the width direction project like an eave from the outer surface of the long side portion 7 of the main body member 2 as shown in FIG. 1. . When the lid member 3 is attached to the main body member 2, as shown in FIG. The drainage openings 17a and 17b are formed by opening both sides of the drainage space 6 between the openings.

The reinforcing bar guide member 4 is formed in a semi-cylindrical shape having a slightly longer axis than the width dimension of the main body member 2 and having an inner diameter sufficient to penetrate the reinforcing bar 22. The outer diameter of the rebar guide member 4 in the natural state is slightly larger than the inner diameter of the rebar guide groove 9 formed in the main body member 2. As shown in FIG. 3, the notch portions 18a, 18a,
18b are formed. These notches 18 have a height substantially equal to the height position of the locking projections 10 formed in the reinforcing bar guide grooves 9 and have a depth greater than the thickness dimension of the long sides 7 of the outer peripheral side member 5. It is formed.

The reinforcing bar guide member 4 configured as described above
As shown in FIG. 3, is fitted into the rebar guide groove 9 from the lower side of the main body member 2 with both ends thereof slightly converging inward. The reinforcing bar guide member 4 expands to a natural state in the reinforcing bar guide groove portion 9 so that the notch portion 18 is in a state of being relatively engaged with the locking convex portion 10, and bridges between the long side portions 7 of the outer peripheral side surface member 5. And assembled with the main body member 2. Therefore, the reinforcing bar guide member 4 is attached to the main body member 2 without particularly performing welding or the like.

Of course, the rebar guide member 4 may be further fixed to the main body member 2 by welding or the like. Further, the main body member 2 and the rebar guide member 4 may be fixed to each other simply by welding or the like as in the related art, without depending on the fitting structure of the locking projection 10 and the notch portion 18 described above. Good.

When the reinforcing bar guide member 4 is attached to the main body member 2, the notch 18 is
By contacting the inner surface of the long side 7, the long side 7
, In other words, the opening dimension on the lower side of the main body member 2 is maintained. Further, the reinforcing bar guide member 4 is connected to the main body member 2.
3, the tip portions 19a and 19b are slightly protruded from the side surface of the main body member 2 as shown in FIG.

The draining grating 1 constructed as described above is mounted on a concrete form 30 and a concrete is driven into the concrete main body 21 by attaching one or more appropriate numbers to the concrete form 30 as described in detail later. It is buried to form the gutter 20. Gutter lid 20 shown in FIG.
The draining grating 1 is located substantially at the center of the concrete body 21 and is buried in the width direction.
The gutter 20 has two reinforcing bars 22 in the longitudinal direction together with the draining grating 1 inside the concrete body 21.
a, 22b and four reinforcing bars 22c to 22f are buried in the width direction for reinforcement.

The reinforcing bars 22a, 22b in the length direction and the reinforcing bars 22c to 22f in the width direction are provided around the draining grating 1, as shown in FIG. The draining grating 1 and the reinforcing bars 22 are combined in this way to form an assembled structure, and are installed in the concrete formwork 30 as described later.

The concrete body 21 is a thick rectangular plate having an outer dimension sufficient to close the opening of the U-shaped groove 40. In the concrete body 21, the recesses 23a, 2 are provided at the center of both sides in the longitudinal direction.
3b is formed. As will be described later, the recessed portion 23 for water removal is used for draining in cooperation with the recessed portion 23 formed on the adjacent side grooved cover 20 in a state where the side groove cover 20 is placed with the U-shaped groove 40 closed. Construct a long hole.

As shown in FIG. 5, the concrete body 21 has a draining grating 1 having a main surface 24 embedded therein.
Is formed as a flat surface almost flush with the surface 3c of the lid member 3 of FIG. As shown in FIG. 5, the concrete main body 21 has substantially the same surface as the lower end of the main body member 2 of the draining grating 1 in which the bottom surface 25 is embedded. In the concrete body 21, draining guide recesses 26a and 26b are formed in the main surface 24 corresponding to the draining openings 17 formed on both sides of the draining grating 1, respectively. As shown in FIGS. 4 and 5, the drain guide recess 26 has a substantially funnel shape by having an inner peripheral surface having an inclined surface whose opening size gradually decreases inward. Of course, the drain guide recess 26 communicates with the drain space 6 of the draining grating 1 via the drain opening 17.

The draining grating 1 has the side edges 3a, 3b of the lid member 3 and the tip portions 19a, 19b of the reinforcing bar guide member 4 slightly projecting from the side surface of the main body member 2 as described above. Have been. Therefore, the draining grating 1 has an improved biting strength against concrete in these portions, and is firmly embedded in the concrete body 21.

In the gutter 20, one draining grating 1 is buried in the width direction at the center of the concrete body 21 in the length direction of the concrete body 21. Not a thing. The side groove cover 20 may be configured such that the draining grating 1 is embedded in the concrete main body 21 at a central portion in the length direction thereof. Further, the gutter 20 is provided with the draining grating 1.
May be embedded in the concrete body 21 at a position lateral to the length direction or the width direction. Further, in the gutter 20, two or many draining gratings 1 may be buried at appropriate positions according to the size of the concrete body 21.

As shown in FIGS. 5 and 8, the side groove cover 20 configured as described above closes the U-shaped groove 40 constituting the side groove, and opposes the side walls 41a, 41b.
Placed on top. As shown in FIG. 5, the drain gutter 20 is placed with the draining grating 1 embedded in the concrete body 21 straddling between the side walls 41 of the U-shaped groove 40. The side groove cover 20 has the mechanical strength in the mounted state improved by the draining grating 1 having high mechanical strength straddling the U-shaped groove 40 in this manner.

The gutter 20 penetrates the reinforcing bar guide member 4 of the draining grating 1 without cutting and welding the longitudinal reinforcing bars 22a and 22b embedded in the concrete body 21. Therefore, the side groove cover 20 does not require a step of cutting the reinforcing bars 22a and 22b and a step of welding with the draining grating 1, thereby simplifying the reinforcing bar assembly and reducing the cost by simplifying the steps. The gutter cover 20 is provided inside the concrete body 21,
Since a large number of rebars 22 that are not cut in the length direction and the width direction are assembled in a lattice shape, they have sufficient mechanical strength. The gutter 20 does not require a welding step, so that the plating layer of each part of the draining grating 1 is not damaged, and the durability due to rust does not deteriorate. Further, since the side groove lid 20 does not require a welding process, there is no generation of harmful gas due to burning of the plating layer.

The gutter 20 constructed as described above is formed by the concrete formwork 30 shown in FIG.
The concrete formwork 30 has a generally box-like shape having a molding space 31 that defines the outer shape of the concrete body 21. The concrete formwork 30 includes a mounting shaft 33 and a pair of positioning pins 34a and 34b, which are mounted on the bottom surface 32 of the assembled structure of the drainage grating 1 and the reinforcing bar 22, with the drainage grating 1 attached thereto. A closing member 35 for closing the drain space 6 and a pair of closing top members 36 for closing the drain openings 17 on both sides.
a, 36b and the like.

The closing member 35 is a draining grating 1
Is a plate-like member having an outer dimension substantially equal to the outer dimension of the main body member 2, and a lid member 3
Attachment holes are formed corresponding to the attachment holes 15 formed at.

The closing top member 36 is connected to the main surface 2 of the gutter 20.
Reference numeral 4 denotes a member for forming the drain guide recess 26 described above, and has a deformed trapezoid as shown in FIG. That is, the closing top member 36 is connected to the side groove cover 2.
0, and a bottom surface 38a corresponding to a portion between the locking protrusions 12 formed on both sides of the lid member 3 of the draining grating 1, and a ceiling surface 38b for closing the drain opening 17
And a vertical side surface 38c abutted against the locking projection 12;
It is constituted by outer peripheral side surfaces 38d to 38f. The ceiling surface 38b has a trapezoidal shape having a larger projected area than the bottom surface 38a, and a rectangular vertical side surface 38c stands on the short side. Therefore, the closing top member 36 is configured as an inclined surface whose outer peripheral side surfaces 38d to 38f other than the vertical side surface 38c gradually incline from the ceiling surface 38b toward the bottom surface 38a.

The closing piece members 36 are fixed to the concrete form 30 at a central portion in the longitudinal direction of the bottom surface 32 so as to be spaced apart from each other in the width direction. In the draining grating 1, the reinforcing bars 22 a and 22 b are respectively penetrated by the reinforcing bar guide member 4, and the other reinforcing bars 22 c to 22 b are provided to the reinforcing bars 22 a and 22 b at positions outside the main body member 2.
f is assembled in a lattice shape to form a reinforcing bar 22
Is assembled.

The concrete form 30 has a bottom surface 32
On the top, the assembly structure of the draining grating 1 and the reinforcing bar 22 is placed with the lid member 3 side as the mounting direction. As shown in FIG.
The cover member 3 is placed on the top, the mounting shaft 33 penetrates through the mounting hole 15, and the positioning pin 34 is
6 respectively. In concrete formwork 30,
The draining space 6 of the draining grating 1 is closed
5 and the mounting shaft 33 penetrating the closing member 35 is tightened with a nut, whereby the assembly of the draining grating 1 and the reinforcing bar 22 is positioned and fixed.

As shown in FIG. 6, the concrete formwork 30 is closed by the closing piece member 36 as shown in FIG. 6 in a state where the assembled structure of the draining grating 1 and the reinforcing bar 22 is positioned and fixed in the molding space 31. The drain opening 17 of the draining grating 1 is closed. Thereafter, concrete is poured into the molding space 31 of the concrete formwork 30. Concrete does not flow into the internal space 6 of the draining grating 1 from the above-described configuration. In the concrete form 30, the draining grating 1 is firmly embedded in the concrete body 21 by the combination structure of the lid member 3 and the reinforcing bar guide member 4 for the above-described main body member 2 of the draining grating 1. The gutter cover 20 is formed. Note that the concrete also flows into the inside of the reinforcing bar guide member 4 in which the reinforcing bar 22 is penetrated from the side. The concrete gutter 30 is removed from the concrete mold frame 30 after a predetermined curing period, and is subjected to a demolding process.

Since the gutter 20 is formed by the concrete form 30 through the above-described steps, the reinforcing steel 22
The rebar assembling is easily performed, and the process of cutting or welding the rebar 22 is not required, so that the rebar 22 can be manufactured extremely easily.

As shown in FIG. 8, the gutter lid 20 is placed on the U-shaped groove 40 which is laid on the shoulder of the road to form a gutter, and is placed adjacent to the U-shaped groove 40 so as to close the opening. The side groove device 50 is constituted by this. The gutter 50 is U
The side groove cover 20 placed on the U-shaped groove 40 is provided with the draining grating 1 having a large mechanical strength.
By straddling between a and 41b, the mechanical strength is further improved.

The gutter device 50 includes a draining grating 1.
The rainwater or the like that has flowed into the buried part of
The water flows from the drain holes 3 and 14 into the internal drain space 6 and is drained to the U-shaped groove 40 through the drain space 6. The gutter device 50 is provided on the main surface 24 of the concrete body 21.
Formed with the drainage guide concave portion 26, rainwater and the like flowing into the buried portion of the drainage grating 1 efficiently flow into the drainage opening portion 17 opened at the bottom of the drainage guide concave portion 26. It is configured as follows. The gutter device 50 drains rainwater or the like from the drain opening 17 to the U-shaped groove 40 via the drain space 6. In the gutter device 50, since the handle recesses 23 formed on the mating side surfaces of the respective gutter lids 20 together form a long hole, rainwater or the like is also transferred from the handle recess 23 to the U-shaped groove 40. Drain.

The mounting holes 15 and the positioning holes 16 formed in the lid members 3 of the draining gratings 1 of the side groove lids 20 also function as drainage holes. A warning may be displayed when a draining grating 1 is buried in a pedestrian or the like.

[0046]

As described above in detail, according to the draining grating according to the present invention, the water draining space portion formed between the main body member and the lid member has two portions in the longitudinal direction. The drainage opening that is stepped down to open the drainage opening is formed, so that not only the drainage hole formed in the lid member but also the rainwater that falls on the road from this drainage opening drains the drainage space. The drainage can be efficiently drained into the gutter. Moreover, since the draining grating is configured by combining the outer peripheral side surface members having the same shape to form the main body member, the draining grating is manufactured by one type of mold apparatus, thereby reducing the cost. Furthermore, the draining grating enables the rebar to be assembled without the need for a reinforcing bar cutting step or a welding step, thereby further reducing costs and improving durability.

The gutter according to the present invention can be manufactured at a low cost by providing the above-mentioned draining grating. In addition, since the gutter lid has a substantially funnel-shaped drainage guide concave portion formed on the main surface thereof corresponding to the drainage opening formed in the drainage grating, rainwater falling on a road, etc. Can easily flow from the drain guide recess into the drain opening, thereby performing efficient drainage. Since the drain grate buried in the side groove lid is placed on the side groove and straddles the side groove wall, the degree of mechanical use for heavy objects and the like can be improved.

Further, according to the method for manufacturing the gutter according to the present invention, the gutter is formed at a low cost because the draining grating is set inside and the concrete is poured into the gutter to form the gutter. And the efficient manufacture of the gutter lid with high drainage efficiency is performed.

[Brief description of the drawings]

FIG. 1 is a perspective view of a draining grating shown as an embodiment of the present invention.

FIG. 2 is an exploded perspective view of the draining grating.

FIG. 3 is a perspective view illustrating a reinforcing bar guide member assembled to the main body member of the draining grating.

FIG. 4 is a perspective view of a gutter lid provided with the drainage grating.

FIG. 5 is a longitudinal sectional view of the side groove cover.

FIG. 6 is a longitudinal sectional view of a main part in a state where a draining grating is installed inside a concrete formwork for forming the side groove cover.

FIG. 7 is a perspective view of a closing top member provided in the concrete formwork.

FIG. 8 is a perspective view of an essential part for explaining a gutter device in which the gutter cover is placed in a U-shaped groove.

[Explanation of symbols]

1 Draining grating, 2 body members, 3 lid members,
4 Reinforcing bar guide member, 5 outer peripheral side member, 6 drainage space, 9 reinforcing bar guide groove, 10 locking convex portion, 11 convex edge portion, 12 locking convex portion, 13 first drainage hole, 14 second Drain holes, 15 mounting holes, 16 positioning holes, 17
Drainage opening, 20-side groove lid, 21 concrete body, 22 rebar, 24 main surface, 26 drainage recess, 30 concrete formwork, 31 molding space, 33
Mounting shaft, 34 positioning pin, 35 closing member, 36
Closure top member, 40 U-shaped groove, 50 side groove device

Claims (9)

[Claims] 1. A substantially rectangular tube having a drainage space formed therein by combining a pair of outer peripheral side members formed in a substantially L-shape, and having an axial line at one opening edge of the opposing side surfaces. A main body member formed with a rebar guide groove portion that is opened by being aligned with the main body member, and mounted on a mounting projection formed on the other opening edge opposite to the rebar guide groove portion of the outer peripheral side surface member constituting the main body member; A lid member formed with a number of drainage holes communicating with the drainage space portion, and by fitting both ends to the rebar guide groove portion, between the opposing side surfaces of the main body member. And a semi-cylindrical rebar guide member that is combined so as to be bridged. The lid member is configured such that, when attached to the main body member, both side portions in the length direction of the drainage space are opened. A drain opening formed by stepping down the body member. 2. The lid member is combined with the main body member such that both edge portions in the width direction project outward from both side surfaces of the main body member, and the reinforcing bar guide member is attached to the main body member. 2. The draining grating according to claim 1, wherein the both ends are combined in such a manner that both end portions protrude outward from the reinforcing bar guide grooves. 3. 3. The rebar guide member is fitted by being fitted into the rebar guide groove, the opening of which is slightly narrower than the outer diameter thereof, and then expanding in a natural state. The draining grating according to claim 1 or 2, wherein: 4. One or more ones which are placed so as to close an opening of a gutter laid along a road shoulder or the like and drain rainwater or the like falling on the road into the gutter. In the side groove cover in which the draining grating is embedded in the concrete body integrally, the draining grating has an overall rectangular cylindrical shape constituting a draining space inside, and is provided at one opening edge of a side surface facing each other. A main body member having an opened reinforcing bar guide groove formed so as to be aligned with an axis, and a plurality of drainage holes communicating with the drainage space are formed, and are opposed to the reinforcing bar guide groove of the main body member. On the other hand, by fitting both ends into the reinforcing bar guide groove, the cover member is mounted on the mounting protrusion formed on the other opening edge, and is bridged between the opposite side surfaces of the main body member. And a semi-cylindrical rebar guide member that is combined with the lid member. The concrete body has a slope that gradually reduces the opening size inward from the surface side to the concrete surface corresponding to the drainage opening of the drainage grating. A side groove cover, wherein a water drain guide recess having a substantially funnel shape is formed. 5. The draining grating according to claim 1, wherein the main body member is formed in a substantially rectangular tubular shape by combining a pair of symmetrical outer peripheral side members formed substantially in an L shape. The gutter cover according to claim 4, characterized in that: 6. The draining grating, wherein both edges of the lid member and both end portions of the reinforcing bar guide member are projected from side surfaces of the main body member, thereby improving the biting strength of the concrete body. The gutter according to claim 4 or 5, wherein 7. The draining grating has a length slightly larger than the width of the opening of the side groove, and is stretched between both side parts in a state where the side groove is closed and placed. The gutter cover according to any one of claims 4 to 6, wherein: 8. One or more draining gratings are embedded in the concrete body and are placed so as to close an opening of a gutter laid along a shoulder or the like of the road. A method for manufacturing a gutter lid for draining rainwater or the like that has fallen into the gutter through the drainage grating, wherein a drainage space portion is formed inside, and the entire rectangular cylindrical shape is opposed to the drainage space portion. A main body member formed with an open reinforcing bar guide groove aligned with the axis at one opening edge of the side surface, and a plurality of drainage holes communicating with the drainage space are formed and the reinforcing bar guide groove is formed. A lid member mounted on a mounting projection formed at the other opening edge of the opposing main body member, and side surfaces opposed to each other by fitting both ends of the rebar guide groove to the main body member And a semi-cylindrical rebar guide member that is combined so as to be bridged between the main body member and the lid member. Draining grating configured to constitute the drain opening that is stepped down is used, and at least, a predetermined reinforcing bar assembly including a step of penetrating a reinforcing bar in the reinforcing bar guide member is performed, and the draining grating is formed. A step of manufacturing an assembly structure with a large number of reinforcing bars, and an assembly structure of the draining grating and the reinforcing bars, with the opening on the reinforcing bar guide groove side and the drain openings on the both sides closed. A step of positioning and installing the concrete formwork in a predetermined position, a step of pouring concrete into the concrete formwork, and a step of curing the concrete formwork after a predetermined curing period. Method for producing a gutter cover, characterized in that produced through a step of removing the molded gutter cover. 9. The concrete formwork has a slope whose outer peripheral surface is gradually inclined outward with respect to a height direction corresponding to a drainage opening of the drainage grating positioned inside the concrete formwork. A jig member configured as a surface is combined, and concrete is driven in a state in which the drainage opening is closed by the jig member, thereby forming a concrete body corresponding to the drainage opening of the drainage grating. The method for manufacturing a gutter according to claim 8, wherein a drainage recess having a funnel shape is formed on the main surface so as to gradually decrease the opening size inward from the surface side. .