JP4347750B2 - Drainage cover member and drainage cover using the same - Google Patents

Description

  The present invention relates to a drainage groove lid member used for a drainage groove and a drainage groove lid using the same.

  Conventionally, grating is generally used as a drain groove cover used for drain grooves such as side grooves. FIG. 6 is a perspective view showing a part of an example of a conventional drainage groove lid. As shown in FIG. 6, the conventional drainage groove lid 50 has a plurality of flat steels or I-shaped steels (eyebars) 52 arranged at equal intervals, and a plurality of them are formed so as to be orthogonal thereto. Of the steel bar (a bar obtained by twisting square steel) 54 and a grating obtained by welding all the contacts between the flat bar or I-shaped bar 52 and the screw bar 54.

  However, the drainage groove lid 50 made of the grating has a problem that the manufacturing cost is high because a large number of welding steps are required at the time of manufacture. Further, in the welding process, plating is necessary as a pretreatment. However, there is a problem that bubbles are generated during the plating, which causes rust and impairs the appearance. Furthermore, in order to make the drain groove cover 50 have sufficient strength, there is a problem that the weight becomes heavy.

  Accordingly, an object of the present invention is to provide a drainage groove lid member that is low in manufacturing cost, has no rust problem, and is light in weight, and a drainage groove lid using the same.

  As a result of diligent research to solve the above problems, the present inventor has found that the main surface of a material having a C-shaped cross section (for example, lip groove steel) obtained by processing one metal plate instead of grating. A drainage groove lid member having a main body provided with a hole (burring hole) having a flange by burring and a reinforcing member for reinforcing the same, or a drainage groove lid formed by connecting two or more of them is used. The present inventors have found that the manufacturing cost is low, there is no problem of rust, and the weight is reduced.

  That is, the present invention provides the following (1) to (4).

(1) It has a main surface that is formed by bending a metal plate and covers a drainage groove, and a pair of opposing side surfaces that are bent vertically from both ends of the main surface, A main body having a plurality of burring holes and having holes on the side surfaces;
A metal plate is bent, a support surface having the same length as that between the opposing side surfaces of the main body, and a pair of opposing surfaces each having a hole, which is bent vertically from both ends of the support surface. And a reinforcing member inserted between the side surfaces of the main body,
A drainage groove lid member in which the main body and the reinforcing member are fixed by welding.

  (2) The drainage groove lid member according to (1), wherein at least two of the reinforcing members are inserted into both ends of the main body that are not bent.

  (3) The plurality of burring holes are elongated holes extending in a direction perpendicular to a fold line between the main surface and the side surface, and are arranged in the same direction as a fold line between the main surface and the side surface. The drain groove cover member according to (1) or (2), wherein the flange portion of the burring hole extends in a direction perpendicular to a fold line between the main surface and the side surface.

(4) A drainage groove lid formed by adjoining and connecting two or more drainage groove lid members according to any one of (1) to (3) so that the side surfaces of the main body are in contact with each other. Because
The fixing member is inserted through the hole of the two main bodies and the hole of the two reinforcing members of the drainage lid member adjacent to each other, and fixes the two main bodies and the two reinforcing members. By doing so, the drainage groove lid connecting the drainage groove lid members adjacent to each other.

The drainage groove lid member of the present invention is suitable for a wide range of applications because of its low manufacturing cost, no rust problem, and low weight.
In addition to the above points, the drainage groove lid of the present invention is easy to carry, and is particularly suitable when the drainage groove covering area is large.

Hereinafter, the drain groove lid member and the drain groove lid of the present invention will be described in detail based on preferred embodiments shown in the accompanying drawings.
<Cover for drainage>
First, the drain groove lid member of the present invention will be described. In FIG. 1, the typical perspective view of one Embodiment of the cover member for drainage grooves of this invention is shown. A drain groove lid member 10 shown in FIG. 1 includes a main body 12 and a reinforcing member 14 fitted into the main body 12.

The main body 12 in the illustrated example has a main surface 18, a set of side surfaces 20, and a set of placement surfaces 22. The main surface 18 is a surface that covers the drainage groove when used in the drainage groove lid. The main surface 18 is provided with a plurality of burring holes 24.
The plurality of burring holes 24 are not particularly limited in shape, size, number, arrangement, position of the flange portion, and the like, but as shown in FIG. 1, they are perpendicular to the fold line between the main surface 12 and the side surface 14. It is preferably a long hole extending in the direction of arrow X in FIG. 1, and is arranged in the same direction as the fold line between main surface 12 and side surface 14 (in the direction of arrow Y in FIG. 1). Is preferred.
Further, as shown in FIG. 1, the flange portion 26 of the burring hole 24 preferably extends in a direction perpendicular to the folding line between the main surface 12 and the side surface 14 (in the direction of arrow X in FIG. 1). . As described above, when the flange portion 26 of the burring hole 24 extends in a direction perpendicular to the bend line between the main surface 12 and the side surface 14, the strength to resist the load from above in FIG. .

On the main surface 18, a plurality of protrusions may be provided at portions other than the burring hole 24 in order to prevent slipping.
FIG. 2 is a schematic perspective view of an example of a main body having a plurality of protrusions on the main surface. As shown in FIG. 2, the main body 12 'has a plurality of protrusions 27 on the main surface 18'. The shape, size, number, arrangement, and the like of the protrusions 27 are not particularly limited.
In FIG. 1, the flange portion 26 of the burring hole 24 protrudes inward (downward in FIG. 1) of the main body 12, but part or all of it protrudes outward (upward in FIG. 1). In this case, the anti-slip effect can be obtained.

The side surfaces 20 are a pair of opposed surfaces that are bent vertically from both ends of the main surface 18. As shown in FIG. 1, the side surface 20 is provided with a hole portion 28 through which a fixing member 42 described later is inserted.
The shape, size, number, arrangement, and the like of the holes 28 are not particularly limited. However, as shown in FIG. 1, the holes 28 are preferably provided in the vicinity of both ends of the main body 12 that are not bent.

The mounting surface 22 in the illustrated example is a set of two surfaces that are vertically bent from the end of the side surface 20 in the same bending direction as the side surface 20 is bent from the main surface 18. The surface 22 exists in the same plane.
When the mounting surface 22 is used as a drainage groove lid, the mounting surface 22 is mounted on the drainage groove lid mounting step.
In addition, although the mounting surface 22 is not an essential component in the present invention, when the mounting surface 22 is provided, the drainage groove lid of the present invention is mounted on the step for mounting the drainage groove lid. When it stabilizes. When the mounting surface 22 is not provided, the end of the side surface 20 is mounted on the step for mounting the lid of the drainage groove.
In addition, as will be described later, when two or more drainage groove lid members of the present invention are connected and used as the drainage groove lid of the present invention, the mounting surface is a step for mounting the drainage groove lid. If it is only on the outer side surfaces of the drainage groove lid members on both ends, the effect is obtained.

  The material of the main body 12 is not particularly limited as long as it is a metal plate. For example, one type of structural steel plate, ordinary steel plate, galvanized iron plate, various surface-treated steel plates, stainless steel plate, aluminum plate, copper plate, brass plate, etc. And a metal plate substantially containing only the above metal element or an alloy plate containing two or more metal elements.

  The main body 12 is preferably subjected to rust prevention treatment. Examples of the rust prevention treatment include plating, baking coating, and various resin coatings.

When plating is performed, rust may be generated in a portion where the main body 12 and the reinforcing member 14 are welded due to air bubbles generated by the plating. However, when the drain groove lid member 10 of the present invention is used as a drain groove. Even if the welded portion is rusted, it cannot be seen from the outside, so there is no problem of deteriorating the aesthetic appearance.
The plating method is not particularly limited, and a conventionally known method can be used depending on the material of the metal plate. The plating may be “post-plating” performed after providing the burring hole 24 and the holes 28 and 34 in the main body 12 and the reinforcing member 14, or may be “pre-plating” in which plating is performed on the metal plate before provision. However, post-plating is preferable in terms of excellent weldability.
Specifically, a method of performing hot dip galvanization called dove plating on the main body 12 and the reinforcing member 14 is suitably exemplified.

  The main body 12 is manufactured by bending a metal plate. For example, it can be manufactured using a lip groove steel obtained by bending a rectangular steel. Specifically, a rectangular steel is bent into a C-shaped material having a main surface, a set of side surfaces, and a set of mounting surfaces, and then subjected to burring (flange processing). A burring hole which is a hole having a flange is formed. Moreover, you may perform a bending process, after forming a burring hole in a metal plate.

A preferred embodiment of the method for manufacturing the main body 12 will be specifically described below.
First, a flat metal plate is embossed as necessary to provide protrusions, and then a burring hole 24 and a hole 28 are provided. Here, the burring hole 24 is formed, for example, by providing two holes (for example, circular holes) in a metal plate, making a linear cut between the two holes, and then extruding the cut portion with a die. Can be provided.
Next, the body 12 can be obtained by bending to form the side surface 20 and, if desired, the mounting surface 22.

  The reinforcing member 14 includes a support surface 30 and a set of fixed surfaces 32. As shown in FIG. 1, the support surface 30 has the same length in the arrow X direction as the distance between the opposing side surfaces 20 of the main body 12. The support surface 30 supports the opposing side surfaces 20 of the main body 12 and improves the strength of the drainage groove lid member 10 of the present invention, particularly the strength to resist the load from above in FIG.

The fixed surface 32 is a pair of opposed surfaces that are bent vertically from both ends of the support surface 30. The fixing surface 32 is used for fixing the main body 12 and the reinforcing member 14.
As shown in FIG. 1, the fixing surface 32 is provided with a hole 34 through which the fixing member 42 is inserted.
The shape, size, number, arrangement, etc. of the holes 34 are not particularly limited.

The material of the reinforcing member 14 and the rust prevention treatment are the same as the materials used for the main body 12 described above.
The reinforcing member 14 is manufactured by bending a metal plate.

In the drain groove lid member 10 of the present invention, the main body 12 and the reinforcing member 14 are fixed by welding. Specifically, the reinforcing member 14 is inserted between the opposing side surfaces 20 of the main body 12 (see FIG. 1), and the inside of the side surface 20 of the main body 12 and the outside of the fixing surface 32 of the reinforcing member 14 come into contact. In the part, welding is performed.
The welding method is not particularly limited, and conventionally known methods such as spot welding and TIG welding can be used. Since the drain groove cover member 10 of the present invention has few places to be welded, the manufacturing cost can be reduced.

In the drain groove lid member 10 of the present invention, as shown in FIG. 1, at least two reinforcing members 14 are provided at both ends of the main body 12 that are not bent (the front end and the back in FIG. 1). It is preferable to be inserted at the end of the Thereby, the intensity | strength of both ends can be improved.
In this case, in the reinforcing member 14 inserted at both ends, the length in the same direction as the fold line between the support surface 30 and the fixed surface 32 (in the direction of arrow Z in FIG. 1) is the main inner side of the main body 12. The length is preferably the same as the length of the fold line between the surface 18 and the side surface 20 (in the direction of arrow Z in FIG. 1). When the length of the reinforcing member 14 in the arrow Z direction (at least the length of the fixing surface 28 in the arrow Z direction) is the same as the length of the inner side of the main body 12 in the arrow Z direction, the drain groove lid member 10 of the present invention. In particular, the strength to resist the load from above in FIG.
Moreover, in this invention, you may have a reinforcement member in places other than the both ends of the main body 12, for example, a center part. Thereby, the intensity | strength of a center part can be improved.

  One drainage groove lid member 10 of the present invention can be used alone as a drainage groove lid, or two or more can be connected and used as a drainage groove lid of the present invention described later.

<Cover for drainage>
Next, the drain groove lid of the present invention will be described. FIG. 3 is a schematic perspective view of one embodiment of the drain groove lid of the present invention. The lid 40 shown in FIG. 3 is formed by adjoining and connecting two of the drain groove lid members 10 of the present invention described above so that the side surfaces 20 of the main body 12 are in contact with each other.
Specifically, the fixing member 42 is inserted into the holes 28 of the two main bodies 12 and the holes 34 of the two reinforcing members 14 of the adjacent drain groove lid members 10, and the two main bodies 12 are inserted. By fixing the two reinforcing members 14 to each other, the adjacent drain groove lid members 10 are connected.
The fixing member 42 is not particularly limited, and examples thereof include a bolt or a nut as shown in FIG. 3 and a pipe or a steel bar penetrating two or more of the adjacent drain groove lid members 10.

  In addition to the fixing member 42 described above, it is preferable to have a fixing means for fixing the two drainage groove lid members 10 of the present invention in terms of improving the strength. Examples of such fixing means include a fastener and an end structure described below. These fixing means may be used in combination of two or more.

FIG. 4 is a schematic diagram showing a preferred specific example of a fastener. FIG. 4A is a perspective view of the fastener, FIG. 4B is a plan view of the fastener, and FIG. 4C is a cross-sectional view illustrating a state in which the fastener is used.
4A and 4B, after bending four foot portions 46 of a substantially H-shaped metal plate, each of the foot portions 46 protrudes inside the bending process. Obtained by providing a claw portion 48. The claw portion 48 can be obtained, for example, by making a cut in three directions inside the foot 46 and pushing it inward.
When using the fasteners 44, as shown in FIG. 4 (C), the feet 44 enter the inside of the burring hole between the two main bodies 12, and the tabs 48 are It fits so that it may be latched by the edge part 26a of the flange part 26. FIG. In order to use in this way, it is preferable that the fastener 44 has a certain degree of elasticity.
The fasteners described above are preferably used because they are easy to construct.

FIG. 5 is a schematic cross-sectional view showing a preferred specific example of the end structure used as the fixing means.
5, the side surface of the main body 12 is bent into a U shape, and an end structure in which a side surface 20a bent outward and a side surface 20b bent inward are fitted to each other is obtained. ing.
This end structure is preferably used because it is easy to construct.

In FIG. 3, the drain groove cover 40 of the present invention is connected to two drain groove cover members 10 of the present invention, but the number of drain groove lids 10 of the present invention to be connected is two or more. If it is, it will not specifically limit. For example, it can be 2, 3, 4, or 5 depending on the size of the drainage groove.
When three or more drainage groove lid members 10 of the present invention are connected, a fixing member for fixing each of the two adjacent drainage groove lid members 10 may be used, and three or more drainage grooves may be used. A fixing member for fixing the lid member 10 may be used, or both may be used in combination.
As a fixing member for fixing three or more drainage groove lid members 10 at a time, for example, a bar or pipe (pipe material) having a length penetrating through the holes 28 and 34 of the three or more drainage groove lid members 10. And a combination with a nut.

The use of the drainage groove lid of the present invention is not particularly limited, and can be used for drainage grooves such as road side grooves and concentrated troughs.
The drain groove lid of the present invention may be assembled in advance before use, or may be assembled at the construction site during use. When assembling at the construction site at the time of use, it is preferable in that it is divided into the drainage groove lid member and the fixing member of the present invention and can be transported and constructed in a small and light state. This is particularly advantageous when the drainage groove has a large covering area, that is, when the drainage groove lid is large and heavy.

It is a typical perspective view of one embodiment of a lid member for drainage grooves of the present invention. It is a typical perspective view of an example of the main body which has a some projection part in the main surface. It is a typical perspective view of one embodiment of the lid for drain grooves of the present invention. It is a schematic diagram which shows the suitable specific example of a fastener. It is typical sectional drawing which shows the suitable specific example of the edge part structure used as a fixing means. It is a perspective view which shows a part of example of the conventional lid | cover for drain grooves.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Drain groove cover member 12, 12 'Main body 14 Reinforcement member 18, 18' Main surface 20 Side surface 22 Mounting surface 24 Burring hole 26 Flange part 26a End part of flange part 27 Protrusion part 28, 34 Hole part 30 Support surface 32 Fixed surface 40 Drainage groove lid 42 Fixing member 44 Fastener 46 Foot 48 Claw 50 Conventional drainage lid 52 I-shaped steel (eye bar)
54 Screw bar

Claims (4)

A metal plate is bent and has a main surface covering the drainage groove and a pair of opposing side surfaces bent vertically from both ends of the main surface, and a plurality of the main surface A main body having a burring hole and having a hole on the side surface;
A metal plate is bent, a support surface having the same length as that between the opposing side surfaces of the main body, and a pair of opposing surfaces each having a hole, which is bent vertically from both ends of the support surface. And a reinforcing member inserted between the side surfaces of the main body,
A drainage groove lid member in which the main body and the reinforcing member are fixed by welding.   The drain groove cover member according to claim 1, wherein at least two of the reinforcing members are inserted into both ends of the main body that are not bent.   The plurality of burring holes are elongated holes extending in a direction perpendicular to a fold line between the main surface and the side surface, and are arranged in the same direction as a fold line between the main surface and the side surface. The drain groove cover member according to claim 1, wherein a flange portion of the burring hole extends in a direction perpendicular to a fold line between the main surface and the side surface. A drainage groove lid formed by adjoining and connecting two or more drainage groove lid members according to any one of claims 1 to 3 so that the side surfaces of the main body are in contact with each other.
The fixing member is inserted through the hole of the two main bodies and the hole of the two reinforcing members of the drainage lid member adjacent to each other, and fixes the two main bodies and the two reinforcing members. By doing so, the drainage groove lid connecting the drainage groove lid members adjacent to each other.

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