JPH09228460A - Grating - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a grating which is provided with a non-slip measures and improve the landscape and also facilitate the assembling work. SOLUTION: This grating is provided with a metallic chief belt-form members 1 parallelly arranged at every a certain pitch and vertically set to turn the breadthwise direction perpendicularly, metallic side plates 2 fixed to the chief members 1 at both sides thereof, and metallic connection materials 3 in which plate materials provided with a plurality of notched holes to correspond to the pitch of the chief member 1 are bent to form a U-shaped section or a recessed section. The connection materials 3 are inserted in the chief members 1 by making use of the notched holes. A paving material 4 is charged in the recesses (v) formed by the chief members 1 and the connection materials 3 bent to make a U-shape or a recess.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grating having a non-slip function, which is useful for improving a landscape and is easy to assemble.

[0002]

2. Description of the Related Art Heretofore, gratings have been used for rainwater gutters and the like in passages, and particularly metal gratings have been frequently used. This is because it drains well and has excellent mechanical strength.
In such a metallic grating G, a plurality of strip-shaped main members 7 are arranged in parallel, and then the twist rods 8 are crossed to form a lattice groove 92, and their intersection points 91 are fixed to each other by electric pressure welding. It was common (Figure 7). In addition, a connecting member insertion hole is provided in the main member, and the connecting member is inserted into the main member so as to form a lattice shape and both are fixed (Japanese Patent Publication No. 56462/1990).
No. gazette) etc.

[0003]

However, the conventional grating has the following problems. First, since the grating is made of metal, it is slippery, and particularly when the surface is wet, it becomes slippery. In addition, since the twist rod and the main member are fixed to each other by electric pressure welding or the like, assembly work is troublesome. In addition, recent gratings have been required to be in harmony with surrounding structures and paved walkways, but conventional gratings have not been able to meet such demands, and have remained inferior.

[0004] The present invention solves the above problems,
The purpose is to provide anti-slip measures, contribute to landscape improvement, and provide easy grating for assembly work.

[0005]

[Means for Solving the Problems] To achieve the above object,
The invention according to claim 1 is a strip-shaped metal main member arranged in parallel with each other at a constant pitch with the width direction being up and down.
A metallic side plate fixed on both sides of the main member, and a metal connecting member formed by bending a plate member having a plurality of notch holes according to the pitch of the main member into a U-shaped or concave-shaped cross section. And the connecting member is fitted into the main member using the notch opening,
And, a pavement material filled in a recess formed by the main member and a connecting material that is bent in a U shape or a concave shape.

The invention of grating described in claim 2 is
The connecting member according to the first aspect is characterized in that a plate member having a plurality of cutout holes is bent in a V-shaped cross section in accordance with the pitch of the main member. Here, the “V-shaped cross section” includes a semi-circular cross section, an arc shape, and a bay shape. In the invention of the grating according to claim 3, the connecting member according to claim 1 or 2 is
It is characterized in that the main members are arranged so that the centers thereof are orthogonal to each other.

According to the first aspect of the present invention, since the connecting member is fitted into the main member by utilizing the notch hole, it is possible to easily connect the main member and the connecting member by welding or the like. It is assembled. When the pavement material is filled in the depression, contact resistance between the pavement material, the main member, and the connecting material is added, and the connecting material becomes difficult to move from the main member and is fixed.
Moreover, since the pavement material appears in the surface layer by being filled with the pavement material, the anti-slip effect is enhanced. Furthermore, filling the inside of the depression with paving material that is in harmony with the surrounding sidewalks will help improve the landscape. When the connecting material whose cross section is bent into a V shape is used as in the invention described in claim 2, since the paving material appears widely on the grating surface even if the amount of the paving material used is small, the cost of the grating can be reduced. The weight can be reduced, and the anti-slip effect and landscape improvement can be enhanced. When the connecting member is arranged so that the center of each main member is orthogonal to each other as in the invention described in claim 3, the connecting member also functions as a container for the pavement material, and the twist bar in the conventional product. Since it also plays the role of, it is possible to create a grating that helps prevent slipping and enhances the scenery, even if it is not much different from the overall shape of conventional products.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail. (1) Embodiment 1 FIGS. 1 to 4 show an embodiment of the present invention. FIG. 1 is an overall perspective view in which a part of the grating according to the present invention is omitted, and FIG. 2 is a partial perspective view of a connecting member in a flat plate state before bending,
FIG. 3 is a partial perspective view of the connecting member bent from the state of FIG. 2, and FIG. 4 is a sectional view taken along line IV-IV of FIG.

The grating A is composed of a main member 1, a side plate 2, a connecting member 3 and a paving material 4, and is mounted on, for example, a concrete water collecting groove S (side groove) having a U-shaped cross section (FIG. 1). The grating A has a bilaterally symmetrical structure about the center line C.

The main member 1 is a strip made of flat steel and cut into a grating width b. The main member 1 has the same shape as that of the conventional main member 1, and a plurality of main members 1 are arranged in parallel with the width direction vertically. As the main member 1, other I-shaped steel (commonly called,
Can be used. A notch 19 is formed in the main member 1 at an upper edge into which a connecting member 3 described later is fitted (FIG. 3). The side plate 2 is made of L-shaped steel here, and has an elongated shape matching the depth length L of the grating A. The side plate 2 is welded and fixed to both end faces of each of the main members 1, 1, ... The side plate 2 may be, for example, a band plate or the like in order to correspond to various rainwater groove shapes.

The connecting member 3 is a molded product obtained by bending a thin plate 3a in which rectangular cutouts 31 are formed at regular pitch intervals into a concave (or U-shaped) cross section (FIGS. 2 and 3). . Here, the shape of the connecting member 3 is formed by bending a flat metal plate into a concave shape in cross section by press molding and roll forming (roll molding). The length of the connecting member 3 substantially matches the depth length L of the grating A. Further, since the opening width W above the connecting member 3 is a width in which the paving material 4 described later is spread, it is selected in consideration of the sliding function and harmony with the surrounding landscape. The connecting material height h is appropriately set at a width equal to or less than the width of the main member 1, but if the width a of the main member 1 is fully filled, the filling amount of the paving material 4 increases and the cost becomes high. Since the connecting member 3 is easily separated from the main member 1, the numerical value in the intermediate range is appropriately selected.

In the connecting member 3, since the cutout hole 31 is fitted into the main member 1 so that the open portion O faces upward, the cutout hole 31 has a lateral width α substantially equal to the wall thickness t of the main member 1. (Fig. 3). Of course, in order to make it easier to fit in the main member 1, or the recess v formed by the main member 1 and the connecting member 3.
To make it easier to drain the rain that falls inside, it is made slightly larger with a play allowance. Vertical length β of the notch opening 31
Has a dimension that does not reach the lateral width f of the thin plate 3a, which is the material of the connecting member 3, so that the connecting member 3 fits into the main member 1 as deeply as possible as shown in FIG. 4 (FIG. 2). Thin plate 3a
When the grating A is set in the water collecting groove S, the distance δ between the side edge of the main member 1 and the notch hole 31 is such that the lattice planes formed by the upper sides of the main member 1 and the connecting member 3 are substantially flush with each other. The depth of the notch 19 of the main member 1 is made substantially equal (FIG. 1). The connecting member 3 is fitted into the main member 1 with the open portion O facing upward, but just by fitting, it functions sufficiently (of course, welding or the like may be performed if necessary). When the main member 1 is fitted into the connecting member 3, the connecting member 3 is not only lifted as it is with respect to the main members 1, 1, ... You can't move in the direction of your hands. Then, the pavement material 4 is filled in the recess v formed by the connecting material 3 and the main member 1 to achieve fixation (FIG. 1). In addition, a hole (not shown) for allowing rainwater to flow down is provided on the bottom surface of the connecting member 3 as needed.

The pavement material 4 is a granular material filled in the depression v. As the paving material 4, ceramic particles (for example, manufactured by Nippon Ceraway Development Co., Ltd., trade name: “Daoladec”), natural stone particles, or the like are solidified with an epoxy resin adhesive or the like, or rubber chips are solidified. A porous material or the like is used. These preferably have water permeability and a non-slip function, and the constituent material is not particularly limited as long as the state of being fixed in the depression v can be maintained. The pavement material 4 is usually colored according to the laying tiles around the grating, etc., to improve the landscape. Natural stones such as white sand and pebbles can be used in shrines and temples.

In assembling the grating A of the present invention, first, the main member 1 and the side plate 2 are integrated, and then the cutout hole 31 and the cutout 19 are aligned with each other, so that the connecting member 3 is attached to the main member 1. Fit in. After that, the pavement material 4 is simply filled into the depression v to complete the product. An adhesive is applied to the pavement material 4 as needed.

Since the grating A having such a structure is assembled (assembled) by fitting the connecting member 3 into the main member 1, the work is much easier than the conventional product as shown in FIG. Conventionally, the main members 7 are arranged in parallel so that the width direction is vertical, and the twist rods 8 are placed orthogonal to the main members 7. Then, a method of applying a current from one side to the other, concentrating and heating a large current at the intersection 91 (joint portion), and press-contacting the main member 7 so that the twist bar is embedded and fixed, is adopted. is there. Thus, the time required for setup and work was long. On the other hand, according to the present invention, the work can be completed in a short time with only the trouble of fitting. If the pavement material 4 is filled in the depression v by merely fitting it, the pavement material 4 will be in close contact with the main member 1 and the connection material 3 on the peripheral surface, so that the friction material will move the connection material 3. It becomes so integrated that it becomes impossible. Furthermore, if the paving material 4 is solidified with an adhesive or the like for the purpose of solidifying, the pavement material 4 will be completely integrated.

Further, by filling the pavement material 4 in the depression v, an anti-slip effect is obtained. The metal main member 1 and the side plate 2 are slippery, and particularly when the surface is wet in rainy weather, the coefficient of friction is further reduced, and the metal easily rolls.
According to the present invention, the presence of the pavement material 4 prevents the shoe bottom from entering the laying area of the pavement material 4 and slipping down even if it tends to slip. In the present embodiment, by fitting the cutout holes 31 and the cutouts 19 to each other, the upper sides of the main member 1 and the connecting member 3 are substantially aligned with each other to form a flat lattice surface. There is no risk of stumbling due to the protrusion, and it has a structure that makes it difficult for pedestrians to fall. In addition, since the paving material 4 is spread in the grating A, it is useful for improving the landscape. If the paving material 4 with a color that is in harmony with the promenade around the gutter and the site is used, the gutter becomes inconspicuous and the sidewalk width (site) is widened to create a favorable environment. Then, if the predetermined shapes of the cutout holes 31 and the cutouts 19 are confirmed at the factory shipment stage, even if the components are carried to the site in the disassembled state and the site alignment (site construction) is performed, the cutouts are opened. The fitting of the hole 31 and the notch 19 ensures that the connecting member 3 is orthogonal to the center of the main member 1, so that a good-looking grating can always be completed. In this way, it is easy to carry in the disassembled state for on-site transportation, and even if it is an on-site construction product, it can ensure the predetermined dimensional accuracy.
And it is easy to assemble.

(2) Embodiment 2 In this embodiment, a grating A as shown in FIG. 5 is used. Instead of the connecting member 3 of the first embodiment, the connecting member 3 having a V-shaped cross section is used. Although not shown, the shape of the cutout hole 31 is a rectangular shape, and the basic structure is the same as that of the first embodiment. Further, the connecting members 3 are arranged in two rows on one grating A (of course, one row arrangement is also possible). The side plate 2 is also flat steel as shown. Other configurations are substantially the same as those of the first embodiment.

In the grating A thus constructed, the area of the paving material 4 appearing on the ground surface is larger than that of the first embodiment even if the paving material 4 used is the same because the connecting material 3 has a V-shaped cross section. , The non-slip effect and the scenery are improved. Since the amount of the paving material 4 can be reduced and the connecting material 3 can be fitted deeply into the main member 1, the cost is reduced and the quality is stably maintained. Other operations and effects are almost the same as those of the first embodiment.

(3) Third Embodiment In this embodiment, a grating A as shown in FIG. 6 is used. A large number of connecting members 3 of the second embodiment are arranged in the longitudinal direction of the side groove with a narrow pitch. The opening gap width E of the grating is set to be much smaller than the opening width W filled with the pavement material 4. On the other hand, although not shown, the pitch of the main member 1 is set large to reduce the overall weight. Other configurations are basically the same as those of the second embodiment.

In addition to the function and effect of the second embodiment, the grating A constructed in this manner has the grating surface almost entirely occupied by the paving material 4, so that the anti-slip effect is as excellent as that of a sidewalk. Become. Also, if the same paving material as the surrounding promenade is used, it will be difficult to see that the grating is laid, giving the image of a wide promenade and helping to improve the landscape. Furthermore,
By adjusting the opening gap width E, it is possible to prevent the heel of footwear such as high heels from fitting into the opening gap width E, and improve safety.

The present invention is not limited to those shown in the above-mentioned embodiment, but can be variously modified within the scope of the present invention depending on the purpose and application. The connecting material 3 does not have to be press-molded and roll-formed. Also, the side plate 2
Is not limited to flat steel or L-shaped steel, and may be a plate material that connects both ends of the main member 1. The number of connecting members 3 is also appropriately selected.

[0022]

As described above, the grating of the present invention is excellent in productivity, safety, aesthetics, etc. by simplifying the assembly, taking anti-slip measures, and contributing to the improvement of the scenery. Exert the effect.

[Brief description of drawings]

FIG. 1 is an overall perspective view in which a part of grating is omitted in the first embodiment.

FIG. 2 is a partial perspective view of the connecting member in a flat plate state before bending according to the first embodiment.

FIG. 3 is a partial perspective view of a connecting member that is bent from the state of FIG.

FIG. 4 is a sectional view taken along line IV-IV of FIG. 1;

FIG. 5 is a sectional view of a grating according to the second embodiment.

FIG. 6 is a sectional view of a grating according to a third embodiment.

FIG. 7 is a partial perspective view of a prior art grating.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main member 2 Side plate 3 Connecting material 3a Plate material 31 Notch hole 4 Paving material A Grating v Vent

Claims (3)

[Claims] 1. A strip-shaped metal main member (1) arranged in parallel with each other at a constant pitch with a width direction being up and down, and a metal side plate (2) fixed to both sides of the main member. ), And a metal connecting member (3) formed by bending a plate member having a plurality of cutout holes according to the pitch of the main member into a U-shaped or concave shape in cross section, and the connecting member forms the cutout holes. And a paving material (4) which is fitted into the main member by using the main member and which is filled in a recess formed by the main member and a connecting member bent in a U shape or a concave shape. Grating characterized by. 2. The grating according to claim 1, wherein the connecting member is formed by bending a plate member having a plurality of cutout holes according to the pitch of the main member so as to have a V-shaped cross section. 3. The grating according to claim 1, wherein the connecting member is arranged so that the center of each main member is orthogonal to each other.