JP3836557B2 - Grating with slit - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a grating with a slit including a slab-shaped main body portion and a lattice portion that is formed along a side portion of the main body portion and drains rainwater or the like. More specifically, the present invention relates to the structure of the portion of the grating with a slit that supports the bearing bar of the lattice portion on the main body.
[0002]
[Prior art]
Conventionally, there is a grating with a slit as a drainage groove or a drainage lid. An outline of such a slitted grating will be described with reference to FIG. 4 and FIG. 5. This slitted grating is a slab-shaped main body 1 and a lattice portion formed along the side of the main body 1. And 5. Such slitted gratings have a slab shape such as a decorative mortar or tile, so that the appearance is good and can be walked without obstacles, and rainwater or the like permeates through the lattice part 5 described above. Therefore, water is not collected on the slab-shaped main body 1.
[0003]
By the way, the main body part 1 of such a grating with slits is generally provided with a shallow dish-shaped main body dish member formed by press-molding a stainless steel plate or the like, and the main body dish member is filled with cosmetic mortar or filled. Tiles and stones are pasted on the mortar to form a flat slab on the top surface.
[0004]
Moreover, said lattice part 5 is comprised from several bearing bars arrange | positioned in parallel along the side part of this main-body part. Both end portions of these bearing bars are joined and held to the end plate material 4 of the grating with slits and the like, and several portions of the intermediate portions of these bearing bars are supported by the support member for preventing and reinforcing the intermediate portion. Are joined and held on the side of the main body.
[0005]
However, since the main body plate member constituting the main body portion is generally formed of a thin plate material, the side wall portion is easily deformed even if the support member is welded to the side wall portion or the like of the main body plate member. Therefore, it cannot be firmly held. For this reason, conventionally, various reinforcing structures have been adopted as the structure for supporting the intermediate part of the bearing bar of the lattice part, and FIG. 5 shows an example thereof.
[0006]
That is, 2 in FIG. 4 indicates a main body dish member, which is made of a thin plate material, includes a side wall portion 2a and a bottom wall portion 2b, and is filled with mortar 3 and the like as described above. The lattice unit 5 is composed of a plurality of, for example, three bearing bars 6, which are arranged in parallel to the side of the main body 1. The longitudinal end portions and the intermediate portion of these bearing bars 6 are supported by a support member 7 '. The support member 7 ′ is made of a plate material, and the bearing bar 6 is fitted to the upper end of the support member 7 ′ and joined by welding or the like, and the side thereof is joined to the side wall 2 a of the main body dish member 2. ing.
[0007]
In this case, as described above, the main body dish member 2 is formed of a relatively thin plate material, and a bending load acts on the side wall portion 2a to which the support member 7 'is welded. When a local bending load is applied to such a relatively thin plate material, the rigidity against the bending load is generally reduced. For this reason, in order to prevent the rigidity of such a conventional member from being lowered, a reinforcing member 30 obtained by bending a thick plate material into an L shape at a portion to which the support member 7 'is attached is connected to the side wall portion 2a. The bottom wall 2b is brought into close contact with each other and joined by welding or the like, and the support member 7 'is joined onto the reinforcing member 30 by welding or the like.
[0008]
A leg member 31 made of a thick plate material is welded to the lower surface of the reinforcing member 30, and a buffer member 32 made of an elastic material such as synthetic rubber is bonded to the lower surface of the leg member 31.
[0009]
In such a conventional apparatus, the main body dish member 2 is reinforced by the reinforcing member 30 described above, and the rigidity and strength thereof can be increased, and the intermediate portion of the bearing bar 6 can be stably and firmly supported. However, such a conventional device needs to be provided with the reinforcing member 30 as described above, which increases the number of parts and the welding process, resulting in an increase in manufacturing cost. Further, as described above, it is necessary to attach the leg member 31 and the buffer member 32 separately, which also increases the number of parts and the number of processes, leading to an increase in manufacturing cost.
[0010]
In addition, when such a grating with slits is attached to, for example, a drainage groove for which construction has been completed, the grating with slits is slid into the drainage groove frame in order from the longitudinal direction. The buffer member 32 slides with respect to the frame of the drainage groove. Therefore, there is a problem that the buffer member 32 adhered to the leg member 31 is peeled off during the sliding.
[0011]
[Problems to be solved by the invention]
The present invention has been made based on the above circumstances, has a simple structure, has a small number of parts and welding processes, can reduce manufacturing costs, and stably and firmly supports the intermediate portion of the bearing bar. The present invention provides a slitted grating having a structure capable of forming a slit.
[0012]
[Means for Solving the Problems]
The present invention according to claim 1 is provided with a support member for supporting an intermediate part of the bearing bar of the lattice part on a side part of the main body dish member of the main body part, and the bearing bar is provided at the upper end part of the support member. The support member has a support web portion made of a metal plate provided along a direction orthogonal to the side wall portion of the main body dish member, and the support web portion. Are a side wall joint part that contacts and joins the side wall part of the main body dish member, and a bottom part that extends to the lower surface of the bottom wall part of the main body dish member and contacts and joins the lower surface of the bottom wall part And a wall joint.
[0013]
Therefore, the load acting on the bearing bar is supported as a shear load along the surface direction of the plate-like support web portion, and is transmitted to and supported by the main body dish member. In this case, the load received by the support web portion is a shear load in the surface direction, and the rigidity in the load direction is extremely high. Further, the side wall joint portion and the bottom wall joint portion of the support web portion are connected to the main body dish member. Since it is integrally joined to the side wall portion and the bottom wall portion, the supporting web member itself acts as a reinforcing member for the main body dish member, preventing local deformation of the main body dish member, and The portion can be stably supported with high rigidity and strength. In addition, the number of parts is one supporting member, and the welding process is only one process, so that the manufacturing is easy and the cost can be greatly reduced.
[0014]
According to the first aspect of the present invention, the support member is configured by bending a metal plate into an inverted U shape, and the pair of both leg portions are respectively configured as a pair of the support web portions. It is what. Accordingly, two support web portions are formed on one support member, and these form a box-like structure, so that the rigidity and strength thereof are further increased.
[0015]
According to the first aspect of the present invention, the tip end portions of the pair of bottom surface joint portions formed on the pair of support web portions are bent in directions facing each other to form a tip bend portion. A block-shaped leg member made of an elastic material is fitted into a frame-shaped portion constituted by the pair of bottom surface joining portions and the tip bent portion. Therefore, the support web member has a frame shape and is structurally strong, and the leg member can be fitted and held in the frame-shaped portion formed by the bottom surface joint portion and the tip bent portion of the support web member. The structure is simple and the manufacture is easy. Further, since the leg member is mechanically firmly fitted and held, as described above, when the grating with slits is attached to the drainage groove or the like, the grating with slits is longitudinally arranged in the frame of the drainage groove. Even if it is made to slide, this leg member does not fall off.
[0016]
According to a second aspect of the present invention, a stepped notch is formed at the lower edge corner of the support web. Therefore, when the grating with slits is attached / detached, the lower corner portion of the support web portion is prevented from interfering with the drain groove or the frame portion of the drainage basin, and smooth attachment / detachment is possible. In addition, when attaching and removing the slitted grating, a hook-like tool is inserted between the bearing bars and hooked on the lower edge of the support web part to lift it, but the notch has a stepped shape, This saddle-shaped tool does not slip, and the operation is easy and safe.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to FIGS. The thing of this embodiment is the grating with a slit for drainage grooves, and the whole is formed with the stainless steel material.
[0018]
In the figure, 1 is a main body portion and 5 is a lattice portion formed along both side portions thereof. The main body 1 includes a shallow dish-shaped main body dish member 2 formed by bending a relatively thin stainless steel plate, and the main body dish member 2 includes a side wall 2a and a bottom wall 2b. The main body dish member 2 is filled with a filler 3 such as mortar, the upper surface thereof is formed flat, and the main body 1 is formed in a slab shape. The upper surface of the main body 1 is finished with a decorative mortar and finished with tiles, stones, or the like according to specifications.
[0019]
Moreover, the end plate material 4 formed of a thick stainless steel plate material is welded to both end portions of the main body tray portion 2. In addition, a notch 8 cut obliquely is formed in the lower corner portion of the end plate material 4, and when the grating with slits is attached to and detached from the drain groove, the lower corner portion of the end plate material 4 is attached to the frame portion of the drain groove. Are prevented from interfering with each other and can be smoothly attached and detached.
[0020]
Further, the lattice portion 5 is composed of a plurality of bearing bars 6. These bearing bars 6 are made of a stainless steel mold material. For example, three bearing bars 6 are arranged in parallel to the edge of the main body 1 with a predetermined distance from each other. The end plate material 4 is welded. In this embodiment, the bearing bar 6 has a rectangular cross-sectional shape. However, the bearing bar may have an I-shaped, T-shaped or other shape. .
[0021]
Further, support members 7 are provided at several places in the middle portion of these bearing bars 6, for example, at the central portion and both end portions, and the middle portion of these bearing bars 6 is used as the body plate of the body portion 1. It is configured to be supported by the member 2 and to increase its rigidity and strength.
[0022]
2 and 3 show the structure of the support portion by the support member 7. FIG. The support member 7 is obtained by bending a relatively thin stainless steel plate material into an inverted U shape, and includes a bent portion 11 and a pair of flat plate-like support web portions 10 formed on both sides thereof. Yes. These support web parts 10 are arranged along a direction perpendicular to the side wall part 2a and the bearing bar 6 of the main body dish member 2, that is, in a vertical plane.
[0023]
Then, slit-shaped or notched bearing bar holding portions 12 and 13 into which the bearing bar 6 is fitted are formed at the upper edge portion of the support member 7, that is, the bent portion 11 and the vicinity thereof. The bearing bars 6 are fitted into the bearing bars 6 and welded, and are supported by the support member 7.
[0024]
Further, at the lower end portion of the support web portion 10, a bottom wall joint portion 14 that protrudes along the lower surface of the bottom wall portion 2 b of the main body dish member 2 is integrally projected. Further, one side edge portion of the support web portion 10 is formed at a side wall joint portion 18 that contacts the side wall portion 2 a of the main body dish member 2. And this side wall joint part 18 contacts the outer surface of the side wall part 2a of the main body dish member 2, and said bottom wall joint part 14 contacts the lower surface of the bottom wall part 2b of this main body dish member 2, and these abutment The parts are welded and joined together.
[0025]
Further, the tip end portions of the bottom wall joint portion 14 are bent at substantially right angles so as to face each other to form tip end bent portions 15, and these tip bend portions 15 are also the bottom wall portions described above. The bottom surface of 2b is contacted and welded. Therefore, a rectangular frame-shaped portion 19 is formed on the lower surface of the bottom wall portion 2 b of the main body dish member 2 by the bottom wall joint portion 14 and the tip bent portion 15. And in this frame-shaped part 19, the block-shaped leg member 17 which consists of elastic materials, such as a synthetic rubber, is fitted by the close fitting state.
[0026]
Further, the lower corner portion of the support web portion 10 is formed with a notched portion 16 cut out in a step shape. When the slitted grating is attached to and detached from the groove, the lower corner portion of the support web portion 19 is a frame of the groove. Prevents interference with the body. In addition, since almost no gap is formed between the grating with slits and the frame of the groove or the like, when attaching or detaching the grating with slits, the gap between the bearing bars 6 has a bowl shape. However, in this case, the notch 16 has a stepped shape and is not cut off at an angle. Even if a hook-shaped tool is hooked, it does not slip, and the work is easy and safe.
[0027]
Next, the operation of the grating with slits as described above will be described. First, the load acting on the bearing bar 6 is mainly a load from above. Such a load tends to cause the bearing bar 6 to bend downward, but such a bend is prevented by the support member 7.
[0028]
The support member 7 is a load in the surface direction of the pair of flat plate-like support web portions 10. Therefore, these loads are supported as a shear load in the surface direction of the support web portion 10. Such a flat plate member has a large rigidity and strength against a shear load in the surface direction. And the shear load which acted on this support web part 10 is each transmitted to the side wall part 2a and the bottom wall part 2b of the main body dish member 2 via the side wall joint part 18 and the bottom wall joint part 14. In this case, since the support web portion 10 has high rigidity as described above, the side wall joint portion 18 and the bottom wall joint portion 14 function as a reinforcing member for the main body dish member 2 and The load is uniformly transmitted to the two portions of the side wall portion 2a and the bottom wall portion 2b, the local load is not applied to the main body dish member 2, and the local deformation does not occur. Therefore, a reinforcing member or the like for the main body dish member 2 is not required, the number of parts is small, manufacturing is easy, and cost can be reduced.
[0029]
In this embodiment, the support member 7 has a box-like structure with the bent portion 11 and a pair of flat plate-like support web portions 10 formed on both sides thereof. Yes, rigidity and the like are further improved.
[0030]
Further, in this embodiment, a rectangular frame-like frame portion 19 is formed on the lower surface of the bottom wall portion 2b of the main body dish member 2 by the bottom wall joint portion 14 and the tip bent portion 15, and a block-like leg member is formed here. Since 17 is fitted in a close fitting state, the structure of the leg portion is simple, and the manufacturing cost can be reduced.
[0031]
Further, since the leg member 17 is fitted to the frame-shaped portion 19, it does not come off with respect to the longitudinal direction of the grating with slits. Therefore, when attaching the slitted grating to the drainage groove after the construction, even if the slitted grating is slid in the longitudinal direction of the drainage groove, the leg member 17 is reliably prevented from falling off. be able to.
[0032]
In this embodiment, the leg member 17 is not mechanically constrained outside in the width direction orthogonal to the longitudinal direction. However, such a slitted grating has only a gap of about several millimeters in the width direction when mounted in the drainage groove, and it is substantially that the slitted grating moves in the width direction in the drainage groove. Therefore, even with such a structure, the leg members 17 do not fall off due to long-term use.
[0033]
In addition, this invention is not limited to said embodiment. For example, the present invention is not limited to slitted gratings, and can be applied to slitted gratings for draining or other slitted gratings in general. Further, the support member does not necessarily have a box-like structure.
[0034]
【The invention's effect】
As described above, according to the present invention, the load acting on the bearing bar is supported as a shear load along the surface direction of the plate-like support web portion, and is transmitted to and supported by the main body dish member, and this load is supported by this support web portion. The side wall joint portion and the bottom wall joint portion are uniformly transmitted to the side wall portion and the bottom wall portion of the main body dish member. Therefore, the support web member itself acts as a reinforcing member for the main body dish member, prevents local deformation of the main body dish member, and can stably support the intermediate portion of the bearing bar with high rigidity and strength. . In addition, the number of parts is one support member, and the welding process is only one process, and the effect is great, such as easy manufacture and cost reduction.
[Brief description of the drawings]
FIG. 1 is a perspective view of a grating with a slit according to an embodiment of the present invention.
FIG. 2 is an exploded perspective view of a portion of a support member according to an embodiment.
3 is a cross-sectional view taken along line AA in FIG.
FIG. 4 is a perspective view of a conventional grating with slits.
5 is a cross-sectional view taken along line BB in FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Main-body part 2 Main-body dish member 5 Lattice part 6 Bearing bar 7 Support member 10 Support web part 14 Bottom wall junction part 18 Side wall junction part

Claims (2)

It comprises a slab-like body part and a lattice part formed along the side part of the body part, and the body part is filled with a filler in a dish-like body dish member formed from a metal plate material. In addition, in the grating with slits, the lattice part includes a bearing bar parallel to the side part of the main body dish member.
It has a support member that supports the intermediate part of the bearing bar on the side part of the main body dish member, and has a bear link bar holding part that holds the bearing bar at the upper end part of the support member, The support member has a support web portion made of a metal plate provided along a direction orthogonal to the side wall portion of the main body plate member, and the support web portion contacts the side wall portion of the main body plate member. A side wall joint portion that is joined in contact with the bottom wall portion, and a bottom wall joint portion that extends to the lower surface of the bottom wall portion of the main body dish member and is joined in contact with the lower surface of the bottom wall portion ;
The support member is formed by bending a metal plate material into an inverted U shape, and the pair of both leg portions are each configured as a pair of the support web portions,
The pair of bottom wall joint portions formed on the pair of support web portions are bent in opposite directions to form a tip bending portion, and the pair of bottom wall joint portions and the tip are formed. A slitted grating, wherein a block-shaped leg member made of an elastic material is fitted in a frame-shaped portion formed of a bent portion . 2. A grating with slits according to claim 1, wherein a stepped notch is formed at a lower edge corner of the support web .

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