Wall

Abstract

To provide a wall that is light, excels in workability and is rich in design.SOLUTION: A wall includes a wall body 3. The wall body 3 comprises a frame 5, a foam resin layer 6 surrounding the frame 5, and a protective coating layer 7 that protects the foam resin layer 6 on the outside. The wall body 3 comprises at least a curving structure part 11. The surface of the foam resin layer 6 of the aforesaid curving structure part 11 has a curving shape. The protective coating layer 7 of the curving structure part 11 has a curving shape with an almost constant thickness paralleling the curving shape of the surface of the foam resin layer 6.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a fence. [Background technology]

[0002] Concrete block walls (hereafter referred to simply as "block walls") are commonly used as walls, but simply fixing them with mortar or other adhesives makes them prone to collapse in earthquakes and other disasters, making them dangerous. Therefore, in Japan, it is mandatory to place reinforcing bars that meet JIS standards horizontally and vertically at specified intervals. Furthermore, as the height of the fence increases, it becomes necessary to install retaining walls.

[0003] In other words, each concrete block weighs more than 10 kg, and if it collapses and you are crushed underneath it, it could be fatal. However, as the wall ages, even if it meets the above standards, the reinforcing bars may rust and the wall may no longer be able to maintain its required strength, or the blocks themselves may crack, putting the wall at risk of collapse in an earthquake.

[0004] Therefore, a block made of a resin foam has been proposed (Patent Document 1). Resin foam blocks are lightweight and easy to stack, and there is less risk of serious injury if they collapse and someone is crushed underneath. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2003-34995 Summary of the Invention [Problem to be solved by the invention]

[0006] However, although the resin foam blocks are lightweight and easy to stack, they require reinforcement up to high levels, just like conventional concrete blocks, and mortar must be filled in at least the reinforced areas, which requires skill and leaves problems in terms of workability. Furthermore, because resin foam blocks are irregular in shape, they require special molds or additional processing after molding, which increases manufacturing costs.

[0007] Furthermore, when processing after molding, it is necessary to match the thickness of the concrete block, which makes it difficult to process on-site, and it is also difficult to create uneven or curved shapes, which creates problems in terms of design.

[0008] In view of the above circumstances, the present invention aims to provide a fence that is lightweight, easy to install, and has a wide range of design features. [Means for solving the problem]

[0009] In order to achieve the above-mentioned object, the fence of the present invention has a fence main body, which comprises a framework, a foamed resin layer surrounding the framework, and a protective coating layer that protects the foamed resin layer from the outside, and is characterized in that the fence main body has at least a curved structural portion or a surface uneven structural portion, the surface of the foamed resin layer of the curved structural portion or surface uneven structural portion has a curved or uneven shape, and the protective coating layer of the curved structural portion or surface uneven structural portion has a curved or uneven shape of approximately uniform thickness that follows the curved or uneven shape of the surface of the foamed resin layer.

[0010] In the present invention, "substantially equal thickness" means that the thickness is roughly the same, but includes thickness error of the order of manufacturing error. The fence of the present invention may have not only a curved structural portion or a surface uneven structure portion, but also a curved structural portion and a surface uneven structure portion arranged side by side, or a flat structural portion with a smooth surface arranged side by side with these.

[0011] The surface uneven structure means grooves that form a pattern on the surface of the foamed resin layer that constitutes the wall surface of the fence, or ridges that protrude outside the fence.

[0012] The fence of the present invention is not particularly limited, but the protective coating layer may be pre-processed into a shape that conforms to the curved or uneven shape of the surface of the foamed resin layer, or may be processed into a shape that conforms to the curved or uneven shape of the surface of the foamed resin layer during on-site construction. By processing the foamed resin material, such as a foamed resin plate, that forms the foamed resin layer during on-site construction into a shape that conforms to the curved or uneven surface shape of the foamed resin material, the protective coating layer can be easily formed even if the surface portion of the foamed resin material is scraped off or cut with a hot wire.

[0013] Materials that can be processed into a shape that follows the curved or uneven surface of the foamed resin layer during on-site construction are not particularly limited, but include, for example, soft metal plates, flexible plastic sheets, materials made of many strip-shaped plates connected via hinges, wallpaper materials, mortar, wall coating materials, plaster materials, etc. These may be used alone or in combination, but to make the fence even lighter, materials lighter than metal materials such as flexible plastic sheets, wallpaper materials, mortar, wall coating materials, plaster materials, and plywood may be used.

[0014] In addition, in the protective coating layer, a sealer layer may be provided between the material layer that can be processed into a shape that conforms to the curved or uneven shape and the foamed resin layer, or a waterproof coating film, a clear lacquer layer, or a decorative layer may be provided on the material layer that can be processed into a shape that conforms to the curved or uneven shape. The method for forming the decorative layer is not particularly limited, but examples include a method of applying paint to the surface of the protective coating layer, a method of attaching wallpaper or a decorative sheet to the surface of the protective coating layer, and, in the case of a soft metal plate, a method of baking paint or attaching a decorative sheet in advance.

[0015] The fence of the present invention is not particularly limited, but the framework can be assembled by screwing, gluing, fusing, or the like using framework materials made of, for example, lightweight metal, fiber-reinforced plastic reinforced with carbon fiber, cellulose fiber, or the like, engineering plastic, wood material, inorganic material, or plate, rod, or tube material made from a composite material of these.

[0016] The framework may be constructed by assembling vertical and horizontal members made of plate, tubular or rod materials into a frame shape, and braces may be inserted within the frame. In particular, if a fiber-reinforced plastic cylinder is used as the frame material, it will be lightweight and have excellent strength. Also, if thinned wood or bamboo is used as the wood material, it will be possible to make effective use of the thinned wood or bamboo and reduce costs.

[0017] The fence of the present invention may be provided with support legs extending downward from the fence body. The lower ends of the vertical members may double as the support legs, or the support legs may be attached separately to the lower ends of the framework, but it is preferable for part of the vertical members to double as the support legs. That is, the support legs can be formed at the same time as the framework is produced, which improves workability. The support legs may be arranged at equal intervals, but the intervals may be varied depending on the condition of the construction surface of the wall construction site.

[0018] The foamed resin layer can be obtained by, but is not particularly limited to, a method in which a foamed resin plate is fixed to a framework while surrounding the framework using metal fittings, adhesive, double-sided adhesive tape, or the like, or a method in which the framework is prepared, the framework is placed in a foam molding mold, and then a foamed resin composition is filled and foamed into the foam molding mold. The resin for forming the foamed resin layer is not particularly limited, but examples thereof include polystyrene, polyethylene, and polypropylene. Furthermore, as the foamed resin board, a general-purpose EPS (expanded polystyrene foam) board that can be easily obtained at a home improvement store or the like may be used.

[0019] The fence of the present invention may have, but is not particularly limited to, at least one through-hole penetrating through the fence in the thickness direction, and the inner peripheral surface of the through-hole may be watertightly coated. Methods for covering the inner peripheral surface of the through hole watertight include fitting a plastic or metal cylindrical body into the through hole, or fitting a glass or transparent resin block into the through hole. The above-mentioned structure enhances the design of the fence. Furthermore, when the blocks are not fitted together, they act as a wind vent, preventing damage to the fence from the wind.

[0020] The fence of the present invention preferably has a hollow portion formed inside the framework that is not filled with a foamed resin material or the like. In other words, by providing a hollow section, it becomes easier to wire electrical equipment such as intercoms and lighting fixtures when attaching them to the fence.

[0021] In the fence of the present invention, the foamed resin layer or protective coating layer may be formed by connecting foamed resin plates that form the foamed resin layer or protective coating layer, or boards or sheets that form the protective coating layer, in at least one of the horizontal and vertical directions. They may also be connected via a trim. [Effects of the Invention]

[0022] The fence of the present invention has a fence main body, which comprises a framework, a foamed resin layer surrounding the framework, and a protective coating layer that protects the foamed resin layer from the outside, and the fence main body has at least a curved structural portion or a surface uneven structural portion, the surface of the foamed resin layer of the curved structural portion or surface uneven structural portion has a curved or uneven shape, and the protective coating layer of the curved structural portion or surface uneven structural portion has a curved or uneven shape of approximately uniform thickness that follows the curved or uneven shape of the surface of the foamed resin layer, and has the following excellent effects.

[0023] That is, since the middle layer is made of foamed resin, the overall weight of the wall is lighter than that of conventional block masonry, so that even if the wall collapses in an earthquake or the like and hits passersby, the degree of injury can be reduced.

[0024] In addition, since it has a foam resin layer, it is easy to adjust the height and narrow the width to suit the site. Furthermore, since it is provided with a curved structure or a surface uneven structure, it is possible to obtain a fence with a highly aesthetic design. Furthermore, the protective coating layer of the curved structure portion or the surface uneven structure portion has a curved or uneven shape that is approximately uniform in thickness and follows the curved or uneven shape of the surface of the foamed resin layer, so that even if the design is enhanced by the curvature or unevenness, it does not hinder the weight reduction of the wall itself. [Brief explanation of the drawings]

[0025] [Figure 1] 1 is a front view of a fence representing a first embodiment of a fence according to the present invention. [Figure 2] FIG. 2 is an end view of the cross section XX of FIG. [Figure 3] FIG. 3 is an enlarged view of a portion Y in FIG. 2. [Figure 4] FIG. 2 is an enlarged end view of the wall of FIG. 1. [Figure 5] FIG. 2 is a perspective view of a side panel used in the foamed resin layer of the curved structure portion used in the fence of FIG. 1. [Figure 6] FIG. 10 is a partially cutaway perspective view of a modified foamed resin plate used to form the wall side portion of the foamed resin layer of the fence according to the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0026] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a fence according to the present invention will be described in detail with reference to the drawings. 1 to 4 show a first embodiment of a fence according to the present invention.

[0027] As shown in FIG. 1, this fence 1 comprises a curved structural portion 11 and a flat structural portion 12, with one end of the curved structural portion 11 contacting a gatepost 2. As shown in FIG. 2, the curved structural portion 11 and the planar structural portion 12 each include a fence main body 3 and support legs 4. As shown in FIG. 2, the fence body 3 includes a framework 5, a foamed resin layer 6, a protective covering layer 7, and a coping 8.

[0028] The framework 5 is formed by assembling vertical members 51 and horizontal members 52, each made of a cylindrical aluminum alloy member, into a frame shape using L-shaped metal fittings 53 and screws 54. The vertical members 51 are arranged at equal intervals in the horizontal direction of the fence, and the lower ends of at least some of the vertical members 51 also serve as support legs 4, as shown in Figure 2. In other words, the vertical members 51 equipped with support legs 4 are longer than the other vertical members 51 by the length of the support legs 4.

[0029] Although not shown, the horizontal members 52 are hung in parallel between the vertical members 51 in the vertical direction, three at a time, as shown in Figures 2 to 4, and their ends are fixed to the vertical members 51 with screws 54 via L-shaped metal fittings 53. That is, the framework 5 is formed into a frame shape by vertical members 51 and horizontal members 52 with a gap S inside.

[0030] Also, although not shown, the cross members 52 that form the framework 5 of the curved structural portion 11 each have a curved shape that follows the curved shape of the curved structural portion 11, and the cross members 52 that form the framework of the planar structural portion 12 are made up of multiple members and are straight.

[0031] The foamed resin layer 6 is formed from EPS board material, and is composed of a plurality of upper and lower pairs of side foamed resin boards 61 that cover both sides of the thickness direction of the frame 5, as shown in Figures 2 and 3, and strip-shaped end foamed resin boards 62 that cover the end faces of the frame 5, as shown in Figure 4. The side foamed resin plate 61 that constitutes the curved structural portion 11 is formed in an R-shape that follows the curved structure of the curved structural portion 11, as shown in Figure 5, and the side foamed resin plate 61 that constitutes the planar structural portion 12 is formed from a thin plate material in a rectangular parallelepiped shape, although not shown.

[0032] In addition, as shown in Figure 3, the vertical movement of each side foam resin plate 61 and end foam resin plate 62 is restricted by support brackets 9 fixed with screws to the upper cross member 52 and the lower cross member 52 (not shown in Figure 3). It is possible to support only a portion of the side foam resin plate 61 or the entire length of it, but it is necessary to make it curved to match the curved shape of the side foam resin plate 61 that constitutes the curved structure portion 11.

[0033] In Figures 2 and 3, 65 is a spacer made of foamed resin that fills the gap S between the vertical member 51 and the side foamed resin plate 61, and is pre-fixed to a predetermined position on the vertical member 51 with adhesive or double-sided tape. The protective coating layer 7 is formed by a plurality of side surface thin plate materials 71 made of aluminum alloy covering the side surface foam resin plate 61 and by end surface thin plate materials 72 covering the end surface foam resin plate 62. In addition, a parting material 73 is provided at the joint between the side surface thin plate materials 71. The side surface thin plate materials 71 used in the curved structure portion 11 are formed to be curved in advance so as to follow the curvature of the side surface foam resin plate 61.

[0034] As shown in FIGS. 1, 2 and 3, the coping bars 8a and 8b are fixed to the cross member 52 at the upper end with screws. Moreover, the coping 8a of the curved structural portion 11 is curved in accordance with the curvature of the curved structural portion 11.

[0035] The support leg 4 is supported and fixed to a concrete foundation 9 buried in the ground G.

[0036] 1 and 2, 16 is a through hole, 17 is a line light, in FIG. 3, 74 is a support bracket for the upper end of the thin plate material, and in FIG. 4, 75 is a support bracket for the side edge of the thin plate material, and the edge of the thin plate material for the side surface 71 or the thin plate material for the end surface 72 fits into the groove portions 74a, 75a to hold the thin plate material for the side surface 71 or the thin plate material for the end surface 72 in a state where it covers the surface of the side foam resin plate 61 and the end foam resin plate 62.

[0037] This fence 1 has a high designability because it is provided with the curved structural portion 11 as described above, and is also lighter than a block fence because it has a foamed resin layer, so that even if it collapses, there is no risk of causing serious damage to passersby. It is also easy to remove, allowing for quick restoration.

[0038] FIG. 6 shows a foam resin side panel of another embodiment of the fence of the present invention. As shown in FIG. 6, this foamed resin side panel 100 has a shape in which a large number of grooves 110 inclined with respect to the vertical plane are provided in parallel on one surface of a rectangular parallelepiped panel.

[0039] This side foam resin plate 100 is not particularly limited, but can be obtained, for example, by cutting a general-purpose EPS plate in a factory or by pressing a hot plate with a groove 110 shape against it, or by cutting it on site. Although not shown, a fence of the present invention using this side foam resin board 100 is supported by the framework 5 in the same manner as the above-described fence 1, with the surface on which the groove 110 is formed on at least one surface in the thickness direction of the framework 5 facing outward. A fence can be formed in the same manner as the above-described fence 1, except that the surface on which the groove 110 is formed is covered with a protective coating layer 7 of approximately uniform thickness in a laminated state.

[0040] The present invention is not limited to the above-described embodiments. For example, in the above-described embodiments, the fence main body includes a curved structural portion and a flat structural portion, but the fence main body may include only the curved structural portion, or the curved structural portion may be replaced with a concave-convex structural portion, or the concave-convex structural portion may be combined with a flat structural portion. In the above embodiment, the fence is equipped with through holes and line lights, but these may be omitted, and other electrical devices such as an intercom or a motion sensor and lights that are activated by the motion sensor may be attached instead.

[0041] In the above embodiment, the support legs are supported by a concrete foundation buried in the ground, but the support legs may also be fixed by inserting them into holes in one or two layers of concrete blocks that serve as the foundation laid on the ground and pouring concrete into the holes. In the above embodiment, the vertical members and horizontal members are fastened together with screws, but they may also be fixed together in advance at the factory by adhesive or welding.

[0042] In the above embodiment, the foamed resin layer is formed of an EPS plate, but it may be formed of other foamed resin materials such as foamed polyethylene. In the above embodiment, the protective coating layer is formed by arranging the plate materials only in the horizontal direction, but it may also be formed by arranging the plate materials in the vertical direction.

[0043] In the above embodiment, the curved portion is R-shaped, but it may be S-shaped or zigzag-shaped. Furthermore, instead of both surfaces of the wall being curved or uneven, only one surface may be curved or uneven.

[0044] In the above embodiment, the foamed resin layer and the protective coating layer are separate entities, and the protective coating layer is provided during on-site construction. However, for example, the foamed resin plate that forms the foamed resin layer may be integrally coated with a protective material that will become the protective coating layer at a factory or the like. In the above embodiment, the protective coating layer is formed of a decorative sheet made of an aluminum alloy, but it may be formed of a material that can be easily cut with hand tools such as a cutter, such as wallpaper. [Explanation of symbols]

[0045] 1. Fence 11 Curved structure 12 Planar structure 16 through holes 17 Line Light 2 Gateposts 3. Fence body 4 Support legs 5. Framework 51 Vertical members 52 Cross member 53 L-shaped bracket 54 bis 6 Foam resin layer 61 Side foam resin board 62 End-face foam resin board 65 spacer 7 Protective coating layer 71 Thin plate material for side surfaces 72 Thin plate material for end face 73 Trim 74 Thin plate upper end support bracket 75 Thin plate side edge support bracket 74a, 75a Groove 8a, 8b Kasagi 9 Concrete foundation 100 Side foam resin board 110 Groove S Gap G ground

Claims

1. A fence having a fence body, the fence body including a framework, a foamed resin layer surrounding the framework, and a protective covering layer protecting the foamed resin layer from the outside, The fence body has at least a curved structural portion or a surface uneven structure portion, A fence characterized in that the surface of the foamed resin layer of the curved structural portion or the uneven surface structural portion has a curved or uneven shape, and the protective coating layer of the curved structural portion or the uneven surface structural portion has a curved or uneven shape that is approximately uniform in thickness and follows the curved or uneven shape of the surface of the foamed resin layer.

2. 2. The fence according to claim 1, wherein the protective coating layer of the curved structure portion or the surface uneven structure portion is formed by attaching a material that can be deformed to a shape that conforms to the surface shape of the foamed resin layer along the foamed resin portion.

3. 3. A fence according to claim 1 or claim 2, wherein the protective coating layer is formed from a plastic thin film, a wood thin film, an inorganic material thin film, wallpaper material, or a composite material thereof.

4. 3. The fence according to claim 1 or claim 2, wherein a decorative layer is laminated on the surface of the protective coating layer.

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