Grooved deck plate

Abstract

To provide a groove-shaped deck plate which can make a finished surface exposed to the inside of a building structure nice-looking and which can make the side of the finished surface exposed to the inside of the building structure a nice-looking ceiling plane as it is.SOLUTION: A groove-shaped deck plate 10A is formed by top parts 11 extending in a longitudinal direction and arranged side by side at a predetermined distance from each other in a width direction, and groove parts 12 positioned between the top parts 11 and extending in a longitudinal direction and recessed toward the inside of a building structure and arranged side by side at a predetermined distance from each other in a width direction. The groove part 12 has a pair of leg parts 18 extending from edges 17 of the top parts 11 adjacent to the groove part in a width direction to the inside of the building structure, and a bottom part 19 positioned between the leg parts 18 and extending in a longitudinal direction. In the groove-shaped deck plate 10A, a predetermined ceiling finishing material 20 is joined to the side of a finished surface 16 exposed to the inside of the building structure in the groove-shaped deck plate 10A, by predetermined joining means and the decorative surface of the ceiling finishing material 20 forms a ceiling plane of the building structure.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a grooved deck plate of a predetermined area.

Background Art

[0002] Various grooved deck plates that are made by bending iron plates and have a placement surface for concrete and a finished surface that is exposed inside a building and are used for constructing ceiling slabs of reinforced concrete buildings, reinforced concrete buildings, and reinforced steel-concrete buildings are known. As an example of such a grooved deck plate, a grooved deck plate supported by a triangular truss on the lower side is disclosed in Patent Document 1. Various known grooved deck plates have both side edges extending in the front-rear direction and both end edges extending in the width direction, and the cross-sectional shape is formed into a wave shape that repeats undulations in the width direction. After reinforcing bars are arranged on the upper surface side, concrete is placed on the placement surface (upper surface) with a predetermined covering dimension. Incidentally, since the lower surface (finished surface) of the iron plate (metal base) is exposed inside the building for these grooved deck plates, the view is poor, and it does not become the ceiling surface as it is. Ceiling finishing work for attaching a ceiling finishing material to the finished surface (lower surface) of the iron plate exposed inside the building is performed.

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0003] In ceiling finishing work when constructing a ceiling slab using a grooved deck plate, a plurality of suspension bolts must be installed on the grooved deck plate, and ceiling finishing materials such as decorative plywood, gypsum board, and aluminum panels must be attached to the suspension bolts. Separate ceiling finishing work is required, which takes time and costs. Incidentally, in a suspended ceiling structure in which a ceiling finishing material is attached using suspension bolts, a ceiling drop accident may occur in which the ceiling finishing material falls when shaking occurs due to an earthquake or the like.

[0004] The object of the present invention is to provide a channel-shaped deck plate that can improve the appearance of the finished surface exposed on the inside (downward) of a building, and that allows the side of the finished surface exposed on the inside of the building to be used as an attractive ceiling surface. Another object of the present invention is to provide a channel-shaped deck plate that can construct a ceiling slab without attaching ceiling finishing materials such as decorative plywood, gypsum board, or aluminum panels using suspension bolts, thereby eliminating the need for ceiling finishing work. Another object of the present invention is to provide a channel-shaped deck plate that can construct a ceiling slab that is free from the risk of falling even if shaking (vibration) occurs due to earthquakes, etc., and that can prevent ceiling collapse accidents. [Means for solving the problem]

[0005] The premise of the present invention for solving the aforementioned problems is a grooved deck plate of a predetermined area, having both side edges extending in the front-rear direction and both end edges extending in the width direction, for use in constructing ceiling slabs of reinforced concrete buildings, reinforced concrete buildings, and reinforced steel-framed concrete buildings.

[0006] The features of the present invention under the above premise are that the grooved deck plate is formed from top portions that extend in the front-rear direction and are spaced apart by a predetermined distance in the width direction, and groove portions that are located between the top portions, extend in the front-rear direction, are recessed toward the inside of the building and are spaced apart by a predetermined distance in the width direction, and the groove portions have a pair of leg portions that extend toward the inside of the building from the edges of adjacent top portions in the width direction, and a bottom portion that is located between the leg portions and extends in the front-rear direction, and a predetermined ceiling finishing material is joined to the side of the grooved deck plate that is exposed toward the inside of the building by a predetermined joining means, and the decorative surface of the ceiling finishing material forms the ceiling surface of the building.

[0007] As an example of the present invention, the ceiling finishing material is at least one of the following: a cloth of a predetermined area extending flat in the front-to-back direction and the width direction; plywood of a predetermined area extending flat in the front-to-back direction and the width direction; siding material of a predetermined area extending flat in the front-to-back direction and the width direction; and wood of a predetermined area extending flat in the front-to-back direction and the width direction. The finishing surface is the underside of the top, the underside of the leg portion, and the underside of the bottom portion. At least one of the cloth, plywood, siding material, and wood is joined to the underside of the bottom portion by joining means, and is spaced apart from the underside of the top and leg portions, concealing the top, leg, and bottom portions while its decorative surface forms the ceiling surface of the building.

[0008] Another example of the present invention is a staple, which is a needle coated with adhesive, and in a grooved deck plate, at least one of cloth, plywood, siding material, and wood is joined to the underside of the bottom portion of the grooved deck plate by a plurality of staples driven in from the upper surface of the bottom portion of the grooved deck plate.

[0009] Another example of the present invention is in which the joining means is an adhesive, and in the grooved deck plate, at least one of the cross, plywood, siding material, and wood is joined to the underside of the bottom portion of the grooved deck plate by adhesive.

[0010] Another example of the present invention is a ceiling finishing material in which the finishing material is at least one of the following: a cloth of a predetermined area extending flat in the front-to-back direction and the width direction; plywood of a predetermined area extending flat in the front-to-back direction and the width direction; siding material of a predetermined area extending flat in the front-to-back direction and the width direction; wood of a predetermined area extending flat in the front-to-back direction and the width direction; and tile material arranged in the front-to-back direction and the width direction. The finishing surface is the lower surface of the top, the lower surface of the leg portion, and the lower surface of the bottom portion. A base material of a predetermined area extending flat in the front-to-back direction and the width direction is joined to the lower surface of the bottom portion by joining means. At least one of the cloth, plywood, siding material, wood, and tile material is joined to the lower surface of the base material by joining means, and is spaced apart from the lower surface of the top and the lower surface of the leg portion, concealing the top, leg portion, and bottom portion, while its decorative surface forms the ceiling surface of the building.

[0011] Another example of the present invention is a staple with adhesive applied to the needle, wherein the joining means is a staple, and in the case of a grooved deck plate, the base material is joined to the lower surface of the bottom portion of the grooved deck plate by a plurality of staples driven in from the upper surface of the bottom portion of the grooved deck plate, and at least one of cloth, plywood, siding material, and wood is joined to the lower surface of the base material by a plurality of staples driven in from the upper surface of the bottom portion of the grooved deck plate. Another example of the present invention is in which the joining means is an adhesive, and in the case of a channel-shaped deck plate, the base material is joined to the underside of the bottom portion of the channel-shaped deck plate by adhesive, and at least one of the following materials is joined to the underside of the base material by adhesive: cloth, plywood, siding material, wood, and tile material. Another example of the present invention is a ceiling finishing material having side edges that extend in the front-rear direction parallel to both side edges of a grooved deck plate, and the grooved deck plate having a first engaging portion formed on one side edge and a second engaging portion formed on the other side edge, wherein in the process of connecting a plurality of grooved deck plates laterally by facing the side edges of the ceiling finishing material laterally, at least one of the engaging portions, the first engaging portion of one grooved deck plate and the second engaging portion of the other grooved deck plate, elastically deforms, and the first engaging portion and the second engaging portion engage when the side edges of the ceiling finishing material come into contact with each other. Another example of the present invention is a ceiling finishing material having side edges that extend in the front-rear direction parallel to both side edges of a grooved deck plate, and a grooved deck plate having a first engaging portion formed on one side edge and a second engaging portion formed on the other side edge, wherein in the process of connecting a plurality of grooved deck plates laterally, the side edges of the ceiling finishing material are brought into contact with each other, and then at least one of the engaging portions, the first engaging portion of one grooved deck plate and the second engaging portion of the other grooved deck plate, is plastically deformed to engage the first engaging portion and the second engaging portion. Another example of the present invention is that the wallpaper is any of vinyl wallpaper, fabric wallpaper, glass wallpaper, paper wallpaper, inorganic wallpaper, wood-based wallpaper, or olefin wallpaper; the plywood is any of high-pressure melamine decorative laminate, low-pressure melamine decorative laminate, veneer decorative laminate, olefin decorative laminate, polyester decorative laminate, printed decorative laminate, DAP decorative laminate, or vinyl decorative laminate; the siding material is any of metal siding, ceramic siding, wood-based siding, or resin siding; the wood is any of coniferous wood or hardwood; the tile material is any of porcelain tile, stoneware tile, or ceramic tile; and as a joining means, at least one of nails, bolts, or rivets is used in addition to adhesive and staples, or at least one of nails, bolts, or rivets is used together with adhesive and staples. [Effects of the Invention]

[0012] According to the grooved deck plate of the present invention, a predetermined ceiling finishing material is joined to the finished surface (bottom surface) of the grooved deck plate exposed to the inside of a reinforced concrete building or a reinforced steel-framed concrete building by a predetermined joining means, forming the ceiling surface of the ceiling slab of the building. This improves the appearance of the finished surface of the grooved deck plate exposed to the inside of the building, and when a ceiling slab is constructed using the grooved deck plate, the finished surface exposed to the inside of the building can be used as a visually appealing ceiling surface. The grooved deck plate has a ceiling finishing material joined to the finished surface, and since the ceiling finishing material forms the ceiling surface, a ceiling slab can be constructed without attaching ceiling finishing materials such as decorative plywood, gypsum board, or aluminum panels using suspension bolts. This eliminates the need for separate ceiling finishing work to install ceiling finishing materials, as well as the time and cost associated with ceiling finishing work. Because channel-shaped deck plates do not require the use of suspension bolts to attach ceiling finishing materials such as decorative plywood, gypsum board, or aluminum panels, compared to suspended ceiling structures that use suspension bolts to attach ceiling finishing materials, they allow for the construction of a ceiling slab that is free from the risk of falling even in the event of shaking (vibration) caused by earthquakes, thus preventing ceiling collapse accidents. With channel-shaped deck plates, you can choose from a variety of ceiling finishing materials to create a ceiling surface that you like, with the desired ceiling finishing material exposed.

[0013] The ceiling finishing material is at least one of the following: a cloth of a predetermined area extending flat in the front-to-back and width directions; plywood of a predetermined area extending flat in the front-to-back and width directions; siding material of a predetermined area extending flat in the front-to-back and width directions; and wood of a predetermined area extending flat in the front-to-back and width directions. The finished surfaces are the underside of the top, the underside of the leg portion, and the underside of the bottom portion. At least one of the cloth, plywood, siding material, and wood is joined to the underside of the bottom portion by joining means, spaced apart from the underside of the top and leg portions, concealing the top, leg, and bottom portions while its decorative surface forms the ceiling surface of the building. The grooved deck plate has at least one decorative surface, made of cross, plywood, siding, or wood, joined to the underside of the bottom portion, which forms the ceiling surface of the ceiling slab of reinforced concrete buildings, reinforced concrete buildings, and steel-reinforced concrete buildings. As the decorative surface of the cross, plywood, siding, or wood is exposed to the inside of the building as the ceiling surface of the ceiling slab, the appearance of the finished surface (underside) of the grooved deck plate that is exposed to the inside of the building can be improved, and the finished surface (cross, plywood, siding, or wood) of the grooved deck plate can be used as an attractive ceiling surface. Because the grooved deck plate has at least one decorative surface, made of cross, plywood, siding, or wood, joined to the underside of the bottom portion, which forms the ceiling surface, the ceiling slab can be constructed without attaching ceiling finishing materials such as decorative plywood, gypsum board, or aluminum panels using suspension bolts, thus eliminating the need for separate ceiling finishing work and saving time and cost for ceiling finishing work. Because grooved deck plates do not require the use of suspension bolts to attach ceiling finishing materials such as decorative plywood, gypsum board, or aluminum panels, compared to suspended ceiling structures that use suspension bolts to attach ceiling finishing materials, they allow for the construction of a ceiling slab that can prevent ceiling collapse accidents, as there is no risk of wallpaper, plywood, siding materials, or wood falling even if shaking (vibration) occurs due to earthquakes, etc.The grooved deck plate allows you to create a desired ceiling surface by selecting your preferred wallpaper, plywood, siding, or wood from a variety of options. It also allows you to easily recreate your desired ceiling surface by replacing old wallpaper, plywood, siding, or wood with new wallpaper, plywood, siding, or wood of your choice. In a grooved deck plate where the joining means is a staple with adhesive applied to the needle, and at least one of cloth, plywood, siding material, and wood is joined to the underside of the bottom portion by multiple staples driven from the upper surface of the bottom portion of the grooved deck plate, at least one decorative surface of the cloth, plywood, siding material, and wood joined to the underside of the bottom portion of the grooved deck plate by staples forms the ceiling surface of the ceiling slab of a reinforced concrete building, a reinforced concrete building, or a reinforced steel-framed concrete building, and the decorative surface of the cloth, plywood, siding material, and wood is exposed to the inside of the building as the ceiling surface of the ceiling slab, the appearance of the underside of the grooved deck plate exposed to the inside of the building can be improved, the underside of the grooved deck plate (cloth, plywood, siding material, wood) can be used as is to form an attractive ceiling surface of the ceiling slab, and a desired ceiling surface can be created in which the cloth, plywood, siding material, or wood is exposed. With reinforced steel deck plates, since the cross, plywood, siding materials, and wood are joined to the underside of the bottom portion of the grooved deck plate with staples, it is possible to eliminate the need for separate ceiling finishing work, saving time and costs for ceiling finishing work. Furthermore, compared to suspended ceiling structures where ceiling finishing materials are attached using suspension bolts, even if shaking (vibration) occurs due to earthquakes or other events, there is no risk of the cross, plywood, siding materials, or wood falling, making it possible to construct a ceiling slab that can prevent ceiling collapse accidents. In a channel-shaped deck plate where the joining means is adhesive, and at least one of cloth, plywood, siding material, and wood is joined to the underside of the bottom portion of the channel-shaped deck plate by adhesive, at least one decorative surface of the cloth, plywood, siding material, and wood joined to the underside of the bottom portion of the channel-shaped deck plate by adhesive forms the ceiling surface of the ceiling slab of a reinforced concrete building, a reinforced concrete building, or a reinforced steel-framed concrete building. As the decorative surface of the cloth, plywood, siding material, or wood is exposed to the inside of the building as the ceiling surface of the ceiling slab, the appearance of the underside of the channel-shaped deck plate exposed to the inside of the building can be improved, the underside of the channel-shaped deck plate (cloth, plywood, siding material, wood) can be used as is to create an aesthetically pleasing ceiling surface of the ceiling slab, and a desired ceiling surface can be created in which the cloth, plywood, siding material, or wood is exposed. With reinforced steel deck plates, since the cross, plywood, siding materials, and wood are bonded to the underside of the bottom portion of the grooved deck plate with adhesive, it is possible to eliminate the need for separate ceiling finishing work, saving time and costs for ceiling finishing work. Furthermore, compared to suspended ceiling structures where ceiling finishing materials are attached using suspension bolts, even if shaking (vibration) occurs due to earthquakes or other events, there is no risk of the cross, plywood, siding materials, or wood falling, making it possible to construct a ceiling slab that can prevent ceiling collapse accidents.

[0014] The ceiling finishing material is at least one of the following: a cloth of a predetermined area extending flat in the front-to-back and width directions; plywood of a predetermined area extending flat in the front-to-back and width directions; siding material of a predetermined area extending flat in the front-to-back and width directions; wood of a predetermined area extending flat in the front-to-back and width directions; and tile material arranged in the front-to-back and width directions. The finished surface is the underside of the top, the underside of the leg portion, and the underside of the bottom portion. A base material of a predetermined area extending flat in the front-to-back and width directions is joined to the underside of the bottom portion by joining means. At least one of the cloth, plywood, siding material, wood, and tile material is joined to the underside of the base material by joining means, spaced apart from the underside of the top and the underside of the leg portion, concealing the top, leg portion, and bottom portion. In a channel-shaped deck plate whose decorative surface forms the ceiling surface of a building, a base material is joined to the underside of the bottom portion of the channel-shaped deck plate, and at least one of the following materials is joined to the underside of the base material: cloth, plywood, siding material, wood, and tile. At least one of the decorative surfaces of the cloth, plywood, siding material, wood, and tile forms the ceiling surface of the ceiling slab, and the decorative surface of the cloth, plywood, siding material, wood, and tile is exposed as the ceiling surface of the ceiling slab. As a result, the appearance of the finished surface (underside) of the channel-shaped deck plate that is exposed to the inside of the building can be improved, and the finished surface of the channel-shaped deck plate (cloth, plywood, siding material, wood, and tile) can be used as an attractive ceiling surface. With channel-shaped deck plates, at least one decorative surface from among cross, plywood, siding, wood, and tile materials joined to the underside of the base material forms the ceiling surface. Therefore, a ceiling slab can be constructed without using suspension bolts to attach ceiling finishing materials such as decorative plywood, gypsum board, or aluminum panels, thus eliminating the need for separate ceiling finishing work and saving time and cost. Because channel-shaped deck plates do not require the attachment of ceiling finishing materials such as decorative plywood, gypsum board, or aluminum panels using suspension bolts, compared to suspended ceiling structures where ceiling finishing materials are attached using suspension bolts, even if shaking (vibration) occurs due to earthquakes, etc., there is no risk of the base material, cross, plywood, siding, wood, or tile materials falling, making it possible to construct a ceiling slab that can prevent ceiling collapse accidents.The grooved deck plate allows you to create a desired ceiling surface by selecting your preferred material from various types of wallpaper, plywood, siding, wood, and tiles, and also allows you to easily recreate your desired ceiling surface by replacing old wallpaper, plywood, siding, wood, and tiles with your preferred new materials. In a grooved deck plate in which the joining means is a staple with adhesive applied to the needle, and the base material is joined to the bottom surface of the bottom portion of the grooved deck plate by multiple staples driven in from the top surface of the bottom portion, and at least one of cloth, plywood, siding material, and wood is joined to the bottom surface of the base material by multiple staples driven in from the top surface of the bottom portion of the grooved deck plate, at least one decorative surface of the cloth, plywood, siding material, and wood joined to the bottom surface of the base material by staples forms the ceiling surface of the ceiling slab of a reinforced concrete building, a reinforced concrete building, or a reinforced steel-framed concrete building, and the decorative surface of the cloth, plywood, siding material, and wood is exposed to the inside of the building as the ceiling surface of the ceiling slab, the appearance of the underside of the grooved deck plate that is exposed to the inside of the building can be improved, the underside of the grooved deck plate (cloth, plywood, siding material, wood) can be used as is to form the ceiling surface of the ceiling slab, and a desired ceiling surface in which the cloth, plywood, siding material, and wood is exposed can be created. In a grooved deck plate, the base material is joined to the underside of the bottom portion of the grooved deck plate with staples, and the cross, plywood, siding material, and wood are joined to the underside of the base material with staples. This eliminates the need for separate ceiling finishing work to install the ceiling finishing material, saving time and cost. Furthermore, compared to a suspended ceiling structure where the ceiling finishing material is attached using suspension bolts, even if shaking (vibration) occurs due to an earthquake or other event, there is no risk of the base material, cross, plywood, siding material, or wood falling, making it possible to construct a ceiling slab that can prevent ceiling collapse accidents. In a grooved deck plate where the joining means is adhesive, and the base material is joined to the underside of the bottom portion of the grooved deck plate by adhesive, and at least one of cloth, plywood, siding material, wood, and tile material is joined to the underside of the base material by adhesive, at least one decorative surface of the cloth, plywood, siding material, wood, and tile material joined to the underside of the base material by adhesive forms the ceiling surface of the ceiling slab of a reinforced concrete building, a reinforced concrete building, or a reinforced steel-framed concrete building, and the decorative surface of the cloth, plywood, siding material, wood, and tile material is exposed to the inside of the building as the ceiling surface of the ceiling slab, the appearance of the underside of the grooved deck plate exposed to the inside of the building can be improved, the underside of the grooved deck plate (cloth, plywood, siding material, wood, and tile material) can be used as is to form an attractive ceiling surface of the ceiling slab, and a desired ceiling surface can be created in which the desired cloth, plywood, siding material, wood, and tile material is exposed. In a grooved deck plate, the base material is bonded to the underside of the grooved deck plate with adhesive, and the cross, plywood, siding material, and wood are bonded to the underside of the base material with adhesive. This eliminates the need for separate ceiling finishing work to install the ceiling finishing material, saving time and cost. Furthermore, compared to a suspended ceiling structure where the ceiling finishing material is attached using suspension bolts, even if shaking (vibration) occurs due to an earthquake or other event, there is no risk of the base material, cross, plywood, siding material, or wood falling, making it possible to construct a ceiling slab that can prevent ceiling collapse accidents.

[0015] The ceiling finishing material has side edges that extend in the front-rear direction parallel to the side edges of the grooved deck plate, and has a first engaging portion formed on one side edge and a second engaging portion formed on the other side edge, and in the process of connecting multiple grooved deck plates in the lateral direction by facing the side edges of the ceiling finishing material side by side, at least one of the engaging portions, the first engaging portion of one grooved deck plate and the second engaging portion of the other grooved deck plate, elastically deforms, and when the side edges of the ceiling finishing material come into contact with each other, the first engaging portion and the second engaging portion engage. The grooved deck plate allows for easy connection of multiple grooved deck plates in the width direction. During the process of connecting multiple grooved deck plates in the width direction, at least one of the engaging portions—the first engaging portion of one grooved deck plate and the second engaging portion of the other grooved deck plate—is elastically deformed, and when the side edges of the ceiling finishing material come into contact with each other, the first engaging portion and the second engaging portion engage. This reduces the effort required to connect multiple grooved deck plates in the width direction and shortens the connection time. Because the first engaging portion and the second engaging portion of the grooved deck plate engage when the side edges of the ceiling finishing material come into contact with each other, multiple grooved deck plates can be reliably connected in the width direction while ensuring that the side edges of the ceiling finishing material come into contact with each other.

[0016] The ceiling finishing material has side edges that extend in the front-rear direction parallel to the side edges of the grooved deck plate, and has a first engaging portion formed on one side edge and a second engaging portion formed on the other side edge, and in the process of connecting multiple grooved deck plates laterally, after the side edges of the ceiling finishing material come into contact with each other, at least one of the engaging portions, the first engaging portion of one grooved deck plate and the second engaging portion of the other grooved deck plate, is plastically deformed to engage the first engaging portion and the second engaging portion. When connecting multiple grooved deck plates in the width direction, the plates can be easily connected in the width direction by first bringing the side edges of the ceiling finishing material into contact with each other, and then plastically deforming at least one of the first engaging portion of one grooved deck plate and the second engaging portion of the other grooved deck plate to engage the first and second engaging portions. This ensures that the side edges of the ceiling finishing material are in contact with each other while reliably connecting the multiple grooved deck plates in the width direction.

[0017] Flat decks in which the wallpaper is one of vinyl wallpaper, fabric wallpaper, glass wallpaper, paper wallpaper, inorganic wallpaper, wood-based wallpaper, or olefin wallpaper; plywood is one of high-pressure melamine decorative laminate, low-pressure melamine decorative laminate, veneer decorative laminate, olefin decorative laminate, polyester decorative laminate, printed decorative laminate, DAP decorative laminate, or vinyl decorative laminate; siding material is one of metal siding, ceramic siding, wood-based siding, or resin siding; wood is one of coniferous wood or hardwood; tile material is one of porcelain tile, stoneware tile, or ceramic tile; and as a means of joining, at least one of nails, bolts, or rivets is used in addition to adhesive and staples, or at least one of nails, bolts, or rivets is used together with adhesive and staples, have a decorative surface pattern and design, color (hue), texture, You can choose from a variety of wallpapers with different gloss, thickness, and other characteristics; plywoods with different patterns, designs, colors, textures, gloss, and thickness; siding materials with different patterns, designs, colors, textures, gloss, and thickness; woods with different patterns (wood grain) and thicknesses; and tiles with different patterns, designs, colors, textures, gloss, shapes, and thicknesses. You can select the desired wallpaper, plywood, siding, wood, or tiles, creating a ceiling surface that you like, and by replacing the wallpaper, plywood, siding, wood, or tiles, you can easily replace old wallpaper, plywood, siding, wood, or tiles with new ones of your choice, creating a ceiling surface that you want.In addition to adhesives and staples, the grooved deck plate is joined to the lower surface of the grooved deck plate or the base material by at least one of nails, bolts, and rivets, and the base material is joined to the lower surface of the grooved deck plate. Or, together with adhesives and staples, at least one of nails, bolts, and rivets joins the cross, plywood, siding material, and tile material to the lower surface of the grooved deck plate or the base material, and the base material is joined to the lower surface of the grooved deck plate. Therefore, various crosses, various plywoods, various siding materials, various woods, various tile materials, and base materials can be easily joined to the lower surface of the bottom part of the grooved deck plate, and the base material can be firmly joined to the lower surface of the grooved deck plate. At the same time, crosses, plywood, siding materials, woods, and tile materials can be firmly joined to the base material, and peeling and falling of crosses, plywood, siding materials, woods, tile materials, and base materials from the grooved deck plate can be reliably prevented.

Brief Description of Drawings

[0018] [Figure 1] Perspective view of the grooved deck plate shown as an example. [Figure 2] Front view of the grooved deck plate in FIG. 1. [Figure 3] Side view of the grooved deck plate in FIG. 1. [Figure 4] Partial enlarged perspective view showing the state where the first engaging portion and the second engaging portion in FIG. 1 are engaged. [Figure 5] Partial enlarged perspective view showing another example of the first and second engaging portions formed on the side edge portion of the grooved deck plate. [Figure 6] Partial enlarged perspective view showing the state where the first engaging portion and the second engaging portion in FIG. 5 are engaged. [Figure 7] Front view of the grooved deck plate shown as another example. [Figure 8] Side view of the grooved deck plate in FIG. 7. [Figure 9] Side view of the grooved deck plate 10B in FIG. 7. [Figure 10]A perspective view of a grooved deck plate, shown as another example. [Figure 11] Figure 10 shows a front view of the grooved deck plate. [Figure 12] Figure 10 shows a side view of the grooved deck plate. [Figure 13] A perspective view of a grooved deck plate, shown as another example. [Figure 14] Front view of the grooved deck plate shown in Figure 13. [Figure 15] Figure 13 shows a side view of the grooved deck plate. [Figure 16] A perspective view of a grooved deck plate, shown as another example. [Figure 17] Figure 16 shows a front view of the grooved deck plate. [Figure 18] Figure 16 shows a side view of the grooved deck plate. [Figure 19] A perspective view of a grooved deck plate, shown as another example. [Figure 20] Front view of the grooved deck plate shown in Figure 19. [Figure 21] Figure 19 shows a side view of the grooved deck plate. [Modes for carrying out the invention]

[0019] A perspective view of the grooved deck plate 10A shown as an example is provided below. Referring to the attached drawings such as Figure 1, the details of the grooved deck plate according to the present invention will be explained as follows. Figure 2 is a front view of the grooved deck plate 10A of Figure 1, and Figure 3 is a side view of the grooved deck plate 10A of Figure 1. Figure 4 is an enlarged perspective view showing the state in which the first engaging portion 22 and the second engaging portion 23 are engaged, and Figure 5 is a partially enlarged perspective view showing another example of the first and second engaging portions formed on the side edge portion 13 of the grooved deck plate 10A. Figure 6 is an enlarged perspective view showing the state in which the first engaging portion and the second engaging portion of Figure 5 are engaged. In Figures 1 and 3, the illustration of one end edge portion 14 of the grooved deck plate 10A is omitted. In addition, Figures 1 to 3 illustrate the state in which the first and second engaging portions 22 and 23 shown in Figure 1 are formed on the side edge 13 of the grooved deck plate 10A, but the first and second engaging portions shown in Figure 5 may also be formed on the side edge 13 of the grooved deck plate 10A. In Figure 1, the front-to-back direction is indicated by arrow A, the width direction by arrow B, and the up-and-down direction by arrow C.

[0020] The channel-shaped deck plate 10A (including channel-shaped deck plates 10B to 10F) is used to construct ceiling slabs of reinforced concrete buildings, reinforced concrete buildings, and reinforced steel-framed concrete buildings by connecting multiple such plates in the width direction. The channel-shaped deck plate 10A (deck for composite slabs) is made by bending a steel plate and is formed from top portions 11 of a predetermined area that extend in the front-to-back direction and are spaced a predetermined distance apart in the width direction, and groove portions 12 that are located between the top portions 11, extend in the front-to-back direction and are spaced a predetermined distance apart in the width direction. The channel-shaped deck plate 10A has both side edges 13 that extend in the front-to-back direction, both end edges 14 that extend in the width direction, and a concrete pouring surface 15 (top surface) and a finishing surface 16 (bottom surface). In the channel-shaped deck plate 10A shown in Figure 1, three tops 11 and two grooves 12 are formed, but there are no particular restrictions on the number of tops 11 and grooves 12, and four or more tops 11 and three or more grooves 12 may be formed depending on the size of the ceiling slab to be constructed and the required strength. In addition, channel-shaped deck plates 10A (including channel-shaped deck plates 10B to 10F) can also be made from other metals such as aluminum plates, stainless steel plates, and titanium plates.

[0021] The groove 12 is recessed toward the inside (downward) of the building. The groove 12 has a pair of leg portions 18 that extend toward the inside (downward) of the building from the edge 17 of the adjacent top portion 11 in the width direction, and a flat bottom portion 19 that is located between the leg portions 18 and extends in the front-rear direction. The bottom portions 19 located on both sides of the grooved deck plate 10A form the side edge portions 13, and the top portion 11 and the groove 12 (leg portions 18, bottom portion 19) located at the front and rear ends of the grooved deck plate 10A form the end edge portions 14. A predetermined ceiling finishing material 20 is joined to the side of the grooved deck plate 10A that is exposed toward the inside (downward) of the building by predetermined joining means. In the grooved deck plate 10A, the decorative surface 21 of the ceiling finishing material 20 forms the ceiling surface of the building. Furthermore, the top surface of the top portion 11, the top surface of the leg portion 18, and the top surface of the bottom portion 19 become the casting surface 15 (top surface), while the bottom surface of the top portion 11, the bottom surface of the leg portion 18, and the bottom surface of the bottom portion 19 become the finished surface 16 (bottom surface).

[0022] As shown in Figure 1, the bottom portion 19 forming one side edge 13 of the grooved deck plate 10A (including grooved deck plates 10B to 10F) has a plurality of elastically deformable first engagement portions 22 arranged at predetermined distances apart in the front-rear direction, and the bottom portion 19 forming the other side edge 13 has a second engagement portion 23 extending in the front-rear direction, also shown as an example of an elastically deformable second engagement portion 23. These first engagement portions 22 are made by cutting the bottom portion 19 forming one side edge 13 in an uneven shape and bending a roughly rectangular convex portion 22a (inclined portion) extending laterally in the width direction toward the casting surface 15 (upper surface) of the bottom portion 19. These convex portions 22a (first engagement portions 22) are inclined portions that slope upward at a predetermined angle from one side edge 13 toward the other side edge 13. These convex portions 22a (inclined portions) are elastically deformable in the vertical direction.

[0023] The second engaging portion 23 is formed from a first inclined portion 23a, which is created by bending the bottom portion 19 that forms the other side edge portion 13 toward the casting surface 15 (upper surface) and inclining the bottom portion 19 (side edge portion 13) toward an upward slope toward the widthwise direction; a horizontal portion 23b that extends substantially horizontally toward the widthwise direction toward the widthwise direction from the tip of the first inclined portion 23a; and a second inclined portion 23c, which is created by bending the bottom portion 19 toward the casting surface 15 (upper surface) toward the tip of the horizontal portion 23b. The horizontal portion 23b has an engagement opening 23d that extends in the front-rear direction. The second inclined portion 23c is inclined toward the casting surface 15 (upper surface) of the bottom portion 19 toward the casting surface 15 (upper surface). The first inclined portion 23a (second engaging portion 23) is elastically deformable in the vertical direction.

[0024] As shown in Figure 5, the bottom portion 19 forming one side edge 13 of the grooved deck plate 10A (including grooved deck plates 10B to 10F) has a first engaging portion 24, shown as another example, which is spaced a predetermined distance apart in the front-rear direction, and the bottom portion 19 forming the other side edge 13 has a second engaging portion 25, shown as another example, which extends in the front-rear direction. The first engaging portion 24 is made by bending the bottom portion 19 forming one side edge 13 so as to fold it back toward the casting surface 15 (upper surface). The first engaging portion 24 is an inclined portion 24a that slopes upward at a predetermined angle from one side edge 13 toward the other side edge 13, and has an engagement opening 24b extending in the front-rear direction. The second engaging portion 25 is formed from an inclined portion 25a, which is created by bending the bottom portion 19 that forms the other side edge portion 13 toward the casting surface 15 (upper surface), and sloping the side edge portion 13 (bottom portion 19) upward toward the widthwise outward direction, and a engaging portion 25b, which is created by bending the tip of the inclined portion 25a toward the casting surface 15 (upper surface) of the bottom portion 19. The engaging portion 25b is sloped downward toward the casting surface 15 (upper surface) of the bottom portion 19.

[0025] Furthermore, the first engaging portions 22, 24 may be first hooks bent toward either the casting surface 15 (upper surface) side of the bottom portion 19 or the finished surface 16 (lower surface) side of the bottom portion 19, and the second engaging portions 23, 25 may be second hooks bent toward the other of either the casting surface 15 (upper surface) side of the bottom portion 19 or the finished surface 16 (lower surface) side of the bottom portion 19. In this case, the first hooks (first engaging portions 22, 24) and the second hooks (second engaging portions 23, 25) are engaged to connect the grooved deck plate 10A in the width direction.

[0026] In the grooved deck plate 10A, the ceiling finishing material 20 conceals the entire surface 16 (the entire underside of the top 11, the entire underside of the leg portion 18, and the entire underside of the bottom portion 19), and the decorative surface 21 of the ceiling finishing material 20 forms the ceiling surface of the building. The ceiling finishing material 20 uses at least one of the following: a predetermined area of ​​cloth extending flat in the front-to-back and width directions; a predetermined area of ​​plywood extending flat in the front-to-back and width directions; a predetermined area of ​​siding material extending flat in the front-to-back and width directions; or a predetermined area of ​​wood extending flat in the front-to-back and width directions. The cloth, plywood, siding material, and wood are joined to the surface 16 (the underside of the bottom portion 19, which is one of the undersides of the top 11, the underside of the leg portion 18, and the underside of the bottom portion 19) by predetermined joining means. The joining method may include at least one of the following: adhesive, staples, nails, bolts, or rivets.

[0027] As wallpaper, one of the following will be used: vinyl wallpaper with different patterns, designs, colors (hues), textures, gloss, thickness dimensions, etc. for the decorative surface 21; fabric wallpaper with different patterns, designs, colors (hues), textures, gloss, thickness dimensions, etc. for the decorative surface 21; glass wallpaper with different patterns, designs, colors (hues), textures, gloss, thickness dimensions, etc. for the decorative surface 21; paper wallpaper with different patterns, designs, colors (hues), textures, gloss, thickness dimensions, etc. for the decorative surface 21; inorganic wallpaper with different patterns, designs, colors (hues), textures, gloss, thickness dimensions, etc. for the decorative surface 21; wood-based wallpaper with different patterns, designs, colors (hues), textures, gloss, thickness dimensions, etc. for the decorative surface 21; or olefin wallpaper with different patterns, designs, colors (hues), textures, gloss, thickness dimensions, etc. for the decorative surface 21. However, the term "wallpaper" will include all kinds of wallpaper that may be developed in the future.

[0028] These cloths have a thickness in the range of 0.3 to 4 mm. The cloths are bonded (fixed) to the entire surface of the finished surface 16 (bottom surface) of the bottom portion 19, excluding the first engaging portion 22 and the second engaging portion 23, by the adhesive (bonding means). As the adhesive, it is preferable to use either an epoxy adhesive or a hot melt adhesive, which have little volume change when cured, but other types of adhesives may also be used. The cloths are spaced downward from the finished surface 16 (bottom surface) of the top portion 11 and the finished surface 16 (bottom surface) of the leg portion 18, concealing the entire surface of the finished surface 16 (the entire bottom surface of the top portion 11, the entire bottom surface of the leg portion 18, and the entire bottom surface of the bottom portion 19), while their decorative surface 21, which is exposed to the inside (downward) of the building, forms the ceiling surface of the building. Furthermore, the cross may be joined (fixed) to the finished surface 16 (the lower surface of the bottom portion 19) by joining means such as adhesive and rivets, adhesive and staples, or adhesive and nails (at least one of adhesive, staples, nails, bolts, or rivets).

[0029] For example, when multiple grooved deck plates 10A (including grooved deck plates 10B to 10F) are connected in the width direction, it is not only possible to join the same type and shape of cloth to the finished surface 16 (underside of the bottom portion 19) of all deck plates 10A, but also to join the same type but different shapes of cloth to the finished surface 16 (underside of the bottom portion 19) of the deck plates 10A to improve the design effect, or to join different types of cloth to the finished surface 16 (underside of the bottom portion 19) of the deck plates 10A to improve the design effect. Furthermore, it is possible to join different types and different shapes of cloth to the finished surface 16 (underside of the bottom portion 19) of the deck plates 10A to improve the design effect.

[0030] As plywood, high-pressure melamine decorative laminates with different patterns, designs, colors (hues), textures, gloss, thickness dimensions, etc. of the decorative surface 21; low-pressure melamine decorative laminates with different patterns, designs, colors (hues), textures, gloss, thickness dimensions, etc. of the decorative surface 21; veneer decorative laminates with different patterns, designs, colors (hues), textures, gloss, thickness dimensions, etc. of the decorative surface 21; olefin decorative laminates with different patterns, designs, colors (hues), textures, gloss, thickness dimensions, etc. of the decorative surface 21; patterns, designs, colors (hues) (i) any of the following are used: polyester decorative laminates with different textures, gloss, thickness, and dimensions; printed decorative laminates with different patterns, designs, colors (hues), textures, gloss, thickness, and dimensions on the decorative surface 21; DAP (Dynamic Artificial Laminate) decorative laminates with different patterns, designs, colors (hues), textures, gloss, thickness, and dimensions on the decorative surface 21; or vinyl decorative laminates with different patterns, designs, colors (hues), textures, gloss, thickness, and dimensions on the decorative surface 21. However, plywood includes all types of such laminates that may be developed in the future.

[0031] These plywoods have a thickness ranging from 0.5 mm to 10 cm. The plywoods are coated with adhesive (not shown) on the opposing surface (flat surface) facing the finished surface 16, and are joined (fixed) to the entire finished surface 16 (bottom surface) of the bottom portion 19, excluding the first engaging portion 22 and the second engaging portion 23, by this adhesive (joining means), and are also joined (fixed) to the bottom portion 19 of the grooved deck plate 10A by a plurality of staples 35 extending in the vertical direction. The staples 35 (needles) are driven in from the mounting surface 15 (top surface) of the bottom portion 19 toward the plywood in the thickness direction (vertical direction) using a gun tacker or air tacker. These staples 35 are arranged in a straight line at equal intervals in the front-to-back direction on the bottom portion 19 of the grooved deck plate 10A. Adhesive (not shown) is applied to the staples 35, and after the staples are driven into the plywood, the adhesive firmly bonds the plywood to the staples 35. The plywood is spaced downward from the underside of the top portion 11 and the underside of the leg portions 18, concealing the entire surface 16 (the entire underside of the top portion 11, the entire underside of the leg portions 18, and the entire underside of the bottom portion 19), while the decorative surface 21 exposed on the inside of the reinforced concrete building or reinforced steel-framed concrete building forms the ceiling surface of the building. The plywood may also be joined (fixed) to the surface 16 (the underside of the bottom portion 19 of the grooved deck plate 10A) by adhesive only, by staples 35 only, by adhesive and rivets, by adhesive and bolts or nails, or by at least one of nails, bolts, or rivets.

[0032] For example, when multiple grooved deck plates 10A (including grooved deck plates 10B to 10F) are connected in the width direction, it is possible to improve the design effect not only by joining the same type and shape of plywood to the finished surface 16 (underside of the bottom portion 19) of all deck plates 10A, but also by joining the same type but different shapes of plywood to the finished surface 16 (underside of the bottom portion 19) of the deck plates 10A, or by joining different types of plywood to the finished surface 16 (underside of the bottom portion 19) of the deck plates 10A. Furthermore, it is possible to improve the design effect by joining different types and different shapes of plywood to the finished surface 16 (underside of the bottom portion 19) of the deck plates 10A.

[0033] As siding material, one of the following is used: metal siding with different patterns, designs, colors (hues), textures, gloss, and thickness dimensions of the decorative surface 21; ceramic siding with different patterns, designs, colors (hues), textures, gloss, and thickness dimensions of the decorative surface 21; wood siding with different patterns, designs, colors (hues), textures, gloss, and thickness dimensions of the decorative surface 21; or resin siding with different patterns, designs, colors (hues), textures, gloss, and thickness dimensions of the decorative surface 21. However, the term "siding material" includes all types of materials that may be developed in the future.

[0034] These siding materials have a thickness ranging from 0.5 mm to 10 cm. The siding material is coated with adhesive (not shown) on the surface facing the finished surface 16, and is joined (fixed) to the entire finished surface 16 (bottom surface) of the bottom portion 19, excluding the first engaging portion 22 and the second engaging portion 23, by this adhesive (joining means), and is also joined (fixed) to the bottom portion 19 of the grooved deck plate 10A by a plurality of staples 35 extending in the vertical direction. The staples 35 (needles) are driven in from the casting surface 15 (top surface) of the bottom portion 19 toward the siding material in the thickness direction (vertical direction) using a gun tacker or air tacker. These staples 35 are arranged in a straight line at equal intervals in the front-to-back direction on the bottom portion 19 of the grooved deck plate 10A. Adhesive (not shown) is applied to the needles of the staples 35, and after the needles are driven into the siding material, the adhesive firmly bonds the siding material to the needles of the staples 35. The siding material is spaced downward from the underside of the top portion 11 and the underside of the leg portions 18, concealing the entire surface 16 (the entire underside of the top portion 11, the entire underside of the leg portions 18, and the entire underside of the bottom portion 19), while the decorative surface 21 exposed on the inside of the reinforced concrete building or reinforced steel-framed concrete building forms the ceiling surface of the building. The siding material may also be joined (fixed) to the surface 16 (the underside of the bottom portion 19 of the grooved deck plate 10A) by adhesive only, by staples 35 only, by adhesive and rivets, by adhesive and bolts or nails, or by at least one of nails, bolts, or rivets.

[0035] For example, when multiple grooved deck plates 10A (including grooved deck plates 10B to 10F) are connected in the width direction, it is possible to improve the design effect not only by joining the same type and shape of siding material to the finished surface 16 (underside of the bottom portion 19) of all deck plates 10A, but also by joining the same type but different shapes of siding material to the finished surface 16 (underside of the bottom portion 19) of the deck plates 10A, or by joining different types of siding material to the finished surface 16 (underside of the bottom portion 19) of the deck plates 10A. Furthermore, it is possible to improve the design effect by joining different types and different shapes of siding material to the finished surface 16 (underside of the bottom portion 19) of the deck plates 10A.

[0036] The wood used is either softwood with different grain patterns (decorative surface 21) and thickness dimensions, or hardwood with different grain patterns (decorative surface 21) and thickness dimensions. The thickness of this wood is in the range of 0.5 mm to 10 cm. The wood is bonded (fixed) to the entire surface of the bottom portion 19 (bottom surface) of the finished surface 16, excluding the first engaging portion 22 and the second engaging portion 23, by the adhesive (bonding means), and is also bonded (fixed) to the bottom portion 19 of the grooved deck plate 10A by multiple staples 35 extending in the vertical direction. The staples 35 (needles) are driven in from the mounting surface 15 (top surface) of the bottom portion 19 toward the wood in the thickness direction (vertical direction) using a gun tacker or air tacker. These staples 35 are arranged in a straight line at equal intervals in the front-to-back direction on the bottom portion 19 of the grooved deck plate 10A. Adhesive (not shown) is applied to the staples 35, and after the staples are driven into the wood, the adhesive firmly bonds the wood to the staples 35. The wood is spaced downward from the underside of the top portion 11 and the underside of the leg portions 18, concealing the entire surface 16 (the entire underside of the top portion 11, the entire underside of the leg portions 18, and the entire underside of the bottom portion 19), while the decorative surface 21 exposed on the inside of the reinforced concrete building or reinforced steel-framed concrete building forms the ceiling surface of the building. The wood may also be joined (fixed) to the surface 16 (the underside of the bottom portion 19 of the grooved deck plate 10A) by adhesive only, by staples 35 only, by adhesive and rivets, by adhesive and bolts or nails, or by at least one of nails, bolts, or rivets.

[0037] One example of constructing a ceiling slab for a reinforced concrete building or a steel-reinforced concrete building using channel-shaped deck plates 10A (including channel-shaped deck plates 10B to 10F) is to engage the first engaging parts 22, 24 and the second engaging parts 23, 25 of the deck plates 10A, connect multiple deck plates 10A in the width direction, and create an assembly of deck plates 10A (ceiling surface). Next, the connected assembly of channel-shaped deck plates 10A is placed and fixed between the width beams of the reinforced concrete building or steel-reinforced concrete building. Alternatively, multiple deck plates 10A may be placed and fixed sequentially between the width beams while connecting them in the width direction.

[0038] After fixing the assembly of channel-shaped deck plates 10A between the width beams of the building, reinforcing bars are placed on the pouring surface 15 (top surface), formwork (not shown) is assembled around the assembly of deck plates 10A, and concrete (not shown) is poured into the formwork from above the deck plates 10A toward the pouring surface 15 to a predetermined cover dimension, and the concrete is cured for a predetermined period. When concrete is poured onto the channel-shaped deck plates 10A, the pouring surface 15 and the reinforcing bars are embedded in the concrete. After the concrete curing period has elapsed, the formwork is removed to complete the ceiling slab. On the ceiling slab, decorative surfaces 21 made of cross, plywood, siding material, wood, or tile material are exposed as the ceiling surface of the building.

[0039] An example of the procedure for connecting multiple grooved deck plates 10A (including grooved deck plates 10B to 10F) in the width direction is as follows: With the side edges 26 of the ceiling finishing material 20 (wallpaper, plywood, siding material, wood, tile material) facing each other in the width direction, multiple grooved deck plates 10A are lined up in the width direction, and the deck plates 10A are moved in the width direction so that they are close together, and the side edges 26 of the ceiling finishing material 20 come into contact with each other. In the process of bringing the side edges 26 of the ceiling finishing material 20 into contact with each other (the process of connecting multiple deck plates 10A in the width direction), the first engaging portion 22 (convex portion 22a (inclined portion)) formed on the side edge 13 of one deck plate 10A comes into contact with the second inclined portion 23c of the second engaging portion 23 formed on the side edge 13 of the other deck plate 10A.

[0040] When the grooved deck plates 10A are moved further in the width direction, the second inclined portion 23c of the second engaging portion 23 rides up onto the casting surface (upper surface) of the convex portion 22a (inclined portion) of the first engaging portion 22, and the second inclined portion 23c presses the convex portion 22a (inclined portion) downward, causing the convex portion 22a (first engaging portion 22) to be pushed downward by the second inclined portion 23c. As a result, the convex portion 22a (first engaging portion 22) elastically deforms downward, and the first inclined portion 23a of the second engaging portion 23 elastically deforms upward. When the second inclined portion 23c of the second engaging portion 23 has overcome the convex portion 22a (first engaging portion 22), the pressing force of the second inclined portion 23c is released, the first inclined portion 23a elastically deforms downward, and the convex portion 22a (inclined portion) elastically deforms upward. When the convex portion 22a (inclined portion) elastically deforms upward, the convex portion 22a (first engaging portion 22) engages with the engagement opening 23d of the horizontal portion 23b of the second engaging portion 23, and the first engaging portion 22 and the second engaging portion 23 engage. In the grooved deck plate 10A (including grooved deck plates 10B to 10F), the first engaging portion 22 and the second engaging portion 23 engage when the side edges 26 of the ceiling finishing material 20 (wallpaper, plywood, siding material, wood, tile material) come into contact with each other.

[0041] The grooved deck plate 10A (including grooved deck plates 10B to 10F) allows for easy connection of multiple deck plates 10A in the width direction. This is achieved by elastically deforming at least one of the engagement portions 22, 23 (convex portion 22a (inclined portion), first inclined portion 23a) of the first engagement portion 22 (convex portion 22a) of one deck plate 10A and the second engagement portion 23 (first inclined portion 23a) of the other deck plate 10A, while the side edges 26 of the ceiling finishing material 20 (wallpaper, plywood, siding material, wood, tile material) are brought into contact with each other. The engagement of the first engagement portion 22 (convex portion 22a) and the second engagement portion 23 (engagement opening 23d of the horizontal portion 23b) allows for easy connection of multiple deck plates 10A in the width direction. This reduces the effort required to connect multiple deck plates 10A in the width direction and shortens the connection time. The grooved deck plate 10A (including grooved deck plates 10B to 10F) engages with the first engaging portion 22 and the second engaging portion 23 when the side edges 26 of the ceiling finishing material 20 come into contact with each other. This allows for secure contact between the side edges 26 of the ceiling finishing material 20 (such as wallpaper, plywood, siding, wood, or tile) while reliably connecting multiple deck plates 10A in the width direction.

[0042] Another example of the procedure for connecting multiple grooved deck plates 10A (including grooved deck plates 10B to 10F) in the width direction is as follows: With the side edges 26 of the ceiling finishing material 20 (wallpaper, plywood, siding material, wood, tile material) facing each other in the width direction, multiple grooved deck plates 10A are lined up in the width direction, and the deck plates 10A are moved in the width direction so that they are close together, and the side edges 26 of the ceiling finishing material 20 come into contact with each other. When the side edges 28 of the ceiling finishing material 20 come into contact with each other, the engagement portion 25b of the second engagement portion 25 formed on the other side edge 13 of the deck plate 10A is positioned directly above the engagement opening 24b of the first engagement portion 24 (inclined portion 24a) formed on one side edge 13 of the deck plate 10A.

[0043] After bringing the side edges 26 of the ceiling finishing material 20 into contact with each other, the inclined portion 25a of the second engaging portion 25 is plastically deformed downward, or the inclined portion 24a of the first engaging portion 24 is plastically deformed upward. When the inclined portion 25a of the second engaging portion 25 is plastically deformed downward, or the inclined portion 24a of the first engaging portion 24 is plastically deformed upward, the engagement portion 25b of the second engaging portion 25 engages with the engagement opening 24b of the inclined portion 24a of the first engaging portion 24, and the first engaging portion 24 and the second engaging portion 25 engage. In the grooved deck plate 10A (including grooved deck plates 10B to 10F), after the side edges 26 of the ceiling finishing material 20 (wallpaper, plywood, siding material, wood, tile material) are brought into contact with each other, at least one of the first engaging portion 24 and the second engaging portion 25 is plastically deformed to engage the first engaging portion 24 and the second engaging portion 25.

[0044] When connecting multiple deck plates 10A in the width direction, the grooved deck plates 10A (including grooved deck plates 10B to 10F) can be easily connected in the width direction by first bringing the side edges 26 of the ceiling finishing material 20 (wallpaper, plywood, siding material, wood, tile material) into contact with each other, and then plastically deforming at least one of the engaging portions 24, 25 of the first engaging portion 24a of one deck plate 10A and the second engaging portion 25a of the other deck plate 10A to engage the first engaging portion 24 (engagement opening 24b of the inclined portion 24a) and the second engaging portion 25 (engagement portion 25b), thereby enabling easy connection of multiple deck plates 10A in the width direction, while ensuring that the side edges 26 of the ceiling finishing material 20 (wallpaper, plywood, siding material, wood, tile material) are in contact with each other.

[0045] Figure 7 is a perspective view of another example of a grooved deck plate 10B, and Figure 8 is a front view of the grooved deck plate 10B of Figure 7. Figure 9 is a side view of the grooved deck plate 10B of Figure 7. Figures 7 and 9 omit the illustration of one end edge portion 14 of the grooved deck plate 10B. In Figure 7, the first and second engaging portions 22 and 23 shown in Figure 1 are formed on the side edge portion 13 of the deck plate 10B, but the first and second engaging portions 24 and 25 shown in Figure 5 may also be formed on the side edge portion 13 of the deck plate 10B. Furthermore, one side edge 13 of the grooved deck plate 10B may have a first hook (first engaging portion) formed thereon, which is bent toward one of the sides of the casting surface 15 (upper surface) and the finished surface 16 (lower surface), and the other side edge 13 of the grooved deck plate 10B may have a second hook (second engaging portion) formed thereon, which is bent toward the other of the sides of the casting surface 15 (upper surface) and the finished surface 16 (lower surface).

[0046] The difference between this grooved deck plate 10B and the one in Figure 1 is that a base material 27 is joined to the finished surface 16 (the lower surface of the bottom portion 19), and a ceiling finishing material 20 is joined to the lower surface 28 of the base material 27. The other components are the same as those of the grooved deck plate 10A in Figure 1, so the same reference numerals as in Figure 1 are used, and the explanation of the grooved deck plate 10A in Figure 1 is used, and a detailed explanation of the other components of this grooved deck plate 10B is omitted.

[0047] The grooved deck plate 10B is made by bending a steel plate and is formed from top portions 11 of a predetermined area that extend in the front-to-back direction and are spaced a predetermined distance apart in the width direction, and groove portions 12 that are located between the top portions 11 and extend in the front-to-back direction and are spaced a predetermined distance apart in the width direction. It has side edge portions 13 that extend in the front-to-back direction, end edge portions 14 that extend in the width direction, and a concrete pouring surface 15 (top surface) and a finished surface 16 (bottom surface). The groove portion 12 has a pair of leg portions 18 that extend inward (downward) from the end edge 17 of the adjacent top portions 11 in the width direction toward the inside (downward) of the building, and a flat bottom portion 19 that is located between the leg portions 18 and extends in the front-to-back direction. The bottom portions 19 located on both sides of the grooved deck plate 10B form the side edge portions 13, and the top portions 11, leg portions 18 and bottom portions 19 located at the front and rear ends of the deck plate 10B form the end edge portions 14.

[0048] On the side of the channel-shaped deck plate 10B where the finished surface 16 is exposed to the inside (bottom) of the building, a predetermined base material 27 and a predetermined ceiling finishing material 20 are joined by predetermined joining means, and the decorative surface 21 of the ceiling finishing material 20 forms the ceiling surface of the building. The first engaging portion 22 and the second engaging portion 23 made on both side edges 13 of the channel-shaped deck plate 10B are the same as those of the channel-shaped deck plate 10A in Figure 1.

[0049] In the grooved deck plate 10B, a base material 27 of a predetermined area, extending flat in the front-to-back and width directions, is joined (fixed) to the finished surface 16 (the lower surface of the bottom portion 19) by a joining means. The base material 27 can be made of plywood (ordinary plywood), plasterboard, or wood. The thickness of the base material 27 is in the range of 0.5 mm to 3 cm. The base material 27 has an adhesive (not shown) applied to the surface facing the finished surface 16, and is joined (fixed) to the entire finished surface 16 (lower surface) of the bottom portion 19, excluding the first engaging portion 22 and the second engaging portion 23, by the adhesive (joining means), and is also joined (fixed) to the bottom portion 19 by a plurality of staples 35 extending in the vertical direction. The staples 35 (needles) are driven in from the mounting surface 15 (upper surface) of the bottom portion 19 toward the base material 27 in the thickness direction (vertical direction) by a gun tacker or air tacker. These staples 35 are arranged in a straight line at equal intervals in the front-to-back direction on the bottom portion 19 of the grooved deck plate 10A. Adhesive (not shown) is applied to the staples 35, and after the staples are driven into the base material 27, the adhesive firmly bonds the base material 27 to the staples 35. The base material 27 conceals the entire surface of the finished surface 16 (the entire underside of the top portion 11, the entire underside of the leg portion 18, and the entire underside of the bottom portion 19). The base material 27 may be joined (fixed) to the finished surface 16 (the underside of the bottom portion 19 of the grooved deck plate 10A) by adhesive only, by staples 35 only, by adhesive and rivets, by adhesive and bolts or nails, or by at least one of nails, bolts, or rivets.

[0050] The ceiling finishing material 20 is joined to the lower surface 28 of the base material 27, which is exposed on the inside (downward) side of the building, by a predetermined joining means. In the grooved deck plate 10B, the ceiling finishing material 20 conceals the entire finishing surface 16 (the entire lower surface 28 of the base material 27), and the decorative surface 21 of the ceiling finishing material 20 forms the ceiling surface of the building. The ceiling finishing material 20 uses at least one of the following: a predetermined area of ​​cloth extending flat in the front-to-back and width directions; a predetermined area of ​​plywood extending flat in the front-to-back and width directions; a predetermined area of ​​siding material extending flat in the front-to-back and width directions; a predetermined area of ​​wood extending flat in the front-to-back and width directions; and tile material arranged in the front-to-back and width directions.

[0051] The wallpaper is firmly bonded (fixed) to the underside 28 of the base material 27 by adhesive. The plywood, siding material, and wood are firmly bonded (fixed) to the underside 28 of the base material 27 by adhesive and multiple staples 35 (the same staples 35 that join the base material 27 and the bottom portion 19). The needles of these staples 35 penetrate the bottom portion 19 and the base material 27, reaching the plywood, siding material, and wood. After the needles of the staples 35 are driven into the plywood, siding material, and wood, the adhesive firmly bonds the plywood, siding material, and wood to the needles. Note that the wallpaper, plywood, siding material, and wood only need to be bonded to the underside 28 of the base material 27 by a predetermined joining means (at least one of adhesive, staples, nails, bolts, and rivets).

[0052] The cross, plywood, siding material, and wood are the same as those used for the grooved deck plate 10A. As the tile material, one of the following is used: porcelain tiles with different patterns, designs, colors (hues), textures, gloss, shapes, and thickness dimensions of the decorative surface 21; stoneware tiles with different patterns, designs, colors (hues), textures, gloss, shapes, and thickness dimensions of the decorative surface 21; or ceramic tiles with different patterns, designs, colors (hues), textures, gloss, shapes, and thickness dimensions of the decorative surface 21. However, the tile material includes all kinds of tiles that may be developed in the future. The tiles are firmly bonded (fixed) to the bottom surface 28 of the base material 27 by adhesive (bonding means) applied to the opposing surface facing the bottom surface 28 of the base material 27.

[0053] For example, when multiple grooved deck plates 10B (including grooved deck plates 10D and 10F) are connected in the width direction, it is not only possible to join the same type and shape of tile material to the base material 27 of all deck plates 10B, but also to join the same type but different shapes of tile material to the base material 27 of the deck plates 10B to improve the design effect, or to join different types of tile material to the base material 27 of the deck plates 10B to improve the design effect. Furthermore, it is possible to join different types and different shapes of tile material to the base material 27 of the deck plates 10B to improve the design effect. The cross, plywood, siding materials, wood, and tile materials are spaced apart downward from the underside of the top 11 and the underside of the leg portions 18, concealing the entire surface 16 (the entire underside of the top 11, the entire underside of the leg portions 18, the entire underside of the bottom portion 19) (the entire underside 28 of the base material 27), while the decorative surface 21 exposed on the inside (downward) of the building forms the ceiling surface of the building.

[0054] Figure 10 is a perspective view of a grooved deck plate 10C as another example, and Figure 11 is a front view of the grooved deck plate 10C of Figure 10. Figure 12 is a side view of the grooved deck plate 10C of Figure 10. In Figures 10 and 12, the illustration of one end edge portion 14 of the grooved deck plate 10C is omitted. In Figure 10, the front-rear direction is indicated by arrow A, the width direction by arrow B, and the up-down direction by arrow C. In Figure 10, the first and second engaging portions 22 and 23 shown in Figure 1 are formed on the side edge portion 13 of the deck plate 10C, but the first and second engaging portions 24 and 25 shown in Figure 5 may also be formed on the side edge portion 13 of the deck plate 10C. Furthermore, a first hook (first engaging portion) may be formed on one side edge 13 of the grooved deck plate 10C, bent toward one of the sides of the casting surface 15 (upper surface) and the finished surface 16 (lower surface), and a second hook (second engaging portion) may be formed on the other side edge 13 of the grooved deck plate 10C, bent toward the other of the sides of the casting surface 15 (upper surface) and the finished surface 16 (lower surface).

[0055] The channel-shaped deck plate 10C (deck for composite slabs) is made by bending a steel plate and is formed from top portions 11 of a predetermined area that extend in the front-to-back direction and are spaced a predetermined distance apart in the width direction, and groove portions 12 that are located between the top portions 11, extend in the front-to-back direction and are spaced a predetermined distance apart in the width direction. It has both side edges 13 that extend in the front-to-back direction, both end edges 14 that extend in the width direction, and a concrete pouring surface 15 (top surface) and a finishing surface 16 (bottom surface). In the channel-shaped deck plate 10C of Figure 10, two top portions 11 and one groove portion 12 are formed, but there is no particular limit to the number of top portions 11 and groove portions 12, and three or more top portions 11 and two or more groove portions 12 may be formed depending on the size of the ceiling slab to be constructed and the required strength, etc.

[0056] The bottom portions 19 located on both sides of the grooved deck plate 10C form the side edge portions 13, and the top portion 11, leg portions 18, and bottom portion 19 located at the front and rear ends of the deck plate 10C form the end edge portions 14. The groove portion 12 has a pair of leg portions 18 that extend inclined toward the inside (downward) of the building from the edge 17 of the adjacent top portion 11 in the width direction, and a bottom portion 19 located between the leg portions 18 and extending in the front and rear direction. The top portion 11 surface, the leg portion 18 surface, and the bottom portion 19 surface become the casting surface 15, and the bottom surface of the top portion 11, the leg portion 18 surface, and the bottom surface of the bottom portion 19 become the finished surface 16 (bottom surface).

[0057] A recessed portion 29 (rib) is formed in the center of the top portion 11, which is recessed downward and extends in the front-to-back direction. A convex portion 30 (rib) is formed above the leg portion 18, which is convex outward in the width direction and extends in the front-to-back direction. A convex portion 31 (rib) is formed in the center of the bottom portion 19, which is convex upward and extends in the front-to-back direction. A predetermined ceiling finishing material 20 is joined to the side of the channel-shaped deck plate 10C that is exposed on the inside (bottom) of the building by a predetermined joining means. In the channel-shaped deck plate 10C, the ceiling finishing material 20 conceals the entire surface of the finishing surface 16 (the entire bottom surface of the top portion 11, the entire bottom surface of the leg portion 18, and the entire bottom surface of the bottom portion 19), and the decorative surface 21 of the ceiling finishing material 20 forms the ceiling surface of the building.

[0058] The ceiling finishing material 20 is joined to the lower surface of the bottom portion 19 of the channel-shaped deck plate 10C, which is exposed to the inside of the building, by a predetermined joining means. In the channel-shaped deck plate 10C, the decorative surface 21 of the ceiling finishing material 20 forms the ceiling surface of the building. The ceiling finishing material 20 uses at least one of the following: cloth of a predetermined area extending flat in the front-to-back and width directions, plywood of a predetermined area extending flat in the front-to-back and width directions, siding material of a predetermined area extending flat in the front-to-back and width directions, or wood of a predetermined area extending flat in the front-to-back and width directions. The cloth, plywood, siding material, and wood used in the channel-shaped deck plate 10C are the same as those used in the channel-shaped deck plate 10A, and the joining means for the cloth, plywood, siding material, and wood to the finishing surface 16 (lower surface) of the bottom portion 19 are the same as those used in the channel-shaped deck plate 10A. Furthermore, it is sufficient if the cross, plywood, siding material, or wood is joined to the finished surface 16 (bottom surface) of the bottom portion 19 by a predetermined joining means (at least one of adhesive, staples, nails, bolts, or rivets).

[0059] Figure 13 is a perspective view of another example of a grooved deck plate 10D, and Figure 14 is a front view of the grooved deck plate 10D of Figure 13. Figure 15 is a side view of the grooved deck plate 10D of Figure 13. In Figures 13 and 15, the illustration of one end edge portion 14 of the grooved deck plate 10D is omitted. In Figure 13, the first and second engaging portions 22 and 23 shown in Figure 1 are formed on the side edge of the deck plate 10D, but the first and second engaging portions 24 and 25 shown in Figure 5 may also be formed on the side edge of the deck plate 10D. Furthermore, one side edge 13 of the grooved deck plate 10D may have a first hook (first engaging portion) formed thereon, which is bent toward one of the sides of the casting surface 15 (upper surface) and the finished surface 16 (lower surface), and the other side edge 13 of the grooved deck plate 10D may have a second hook (second engaging portion) formed thereon, which is bent toward the other of the sides of the casting surface 15 (upper surface) and the finished surface 16 (lower surface).

[0060] The difference between this grooved deck plate 10D and the one in Figure 11 is that a base material 27 is joined to the finished surface 16 (the lower surface of the bottom portion 19), and a ceiling finishing material 20 is joined to the lower surface 28 of the base material 27. The other components are the same as those of the grooved deck plate 10C in Figure 11, so the same reference numerals as in Figure 11 are used, and the explanation of the grooved deck plate 10C in Figure 11 is used, and a detailed explanation of the other components of this grooved deck plate 10D is omitted.

[0061] The grooved deck plate 10D (deck for composite slab) is made by bending a steel plate and is formed from a top portion 11 of a predetermined area that extends in the front-to-back direction and is spaced a predetermined distance apart in the width direction, with a recessed portion 29 (rib) formed in the center that is recessed downward and extends in the front-to-back direction, and groove portions 12 that are located between the top portions 11 and extend in the front-to-back direction and are spaced a predetermined distance apart in the width direction, and has side edges 13 that extend in the front-to-back direction, end edges 14 that extend in the width direction, and a concrete pouring surface 15 (top surface) and a finishing surface 16 (bottom surface). The groove portion 12 extends inclined toward the inside (downward) of the building from the edge 17 of the adjacent top portion 11 in the width direction, and has a pair of leg portions 18 with a convex portion 30 (rib) formed above it that is convex outward in the width direction and extends in the front-rear direction, and a bottom portion 19 located between the leg portions 18 and extending in the front-rear direction, with a convex portion 31 (rib) formed in its center that is convex upward and extends in the front-rear direction.

[0062] On the side of the channel-shaped deck plate 10D where the finished surface 16 is exposed to the inside (bottom) of the building, a predetermined base material 27 and a predetermined ceiling finishing material 20 are joined by predetermined joining means, and the decorative surface 21 of the ceiling finishing material 20 forms the ceiling surface of the building. The first engaging portion 22 and the second engaging portion 23 made on both side edges 13 of the channel-shaped deck plate 10D are the same as those of the channel-shaped deck plate 10A in Figure 1.

[0063] In the grooved deck plate 10D, a base material 27 (plywood (ordinary plywood), plasterboard, or wood with a thickness of 0.5 mm to 3 cm) of a predetermined area that extends flat in the front-to-back and width directions is joined (fixed) to the finished surface 16 (the underside of the bottom portion 19) by the same joining means as in the grooved deck plate 10B. The base material 27 conceals the entire area of ​​the finished surface 16 (the entire underside of the top portion 11, the entire underside of the leg portions 18, and the entire underside of the bottom portion 19). The base material 27 only needs to be joined to the finished surface 16 (the underside of the bottom portion 19) by a predetermined joining means (at least one of adhesive, staples, bolts, or rivets).

[0064] In the grooved deck plate 10D, the ceiling finishing material 20 is joined to the lower surface 28 of the base material 27 that is exposed on the inside (downward) side of the building by a predetermined joining means, so that the ceiling finishing material 20 conceals the entire finishing surface 16 (the entire lower surface 28 of the base material 27), and the decorative surface 21 of the ceiling finishing material 20 forms the ceiling surface of the building. The ceiling finishing material 20 uses at least one of the following: a predetermined area of ​​cloth extending flat in the front-to-back and width directions, a predetermined area of ​​plywood extending flat in the front-to-back and width directions, a predetermined area of ​​siding material extending flat in the front-to-back and width directions, a predetermined area of ​​wood extending flat in the front-to-back and width directions, or tile material arranged in the front-to-back and width directions.

[0065] The cross, plywood, siding material, wood, and tile material are joined to the underside 28 of the base material 27 by the same joining means as in the channel-shaped deck plate 10B. The cross, plywood, siding material, and wood used in the channel-shaped deck plate 10D are the same as those used in the channel-shaped deck plate 10A. The tile material used in the channel-shaped deck plate 10D is the same as that used in the channel-shaped deck plate 10B. The cross, plywood, siding material, wood, and tile material conceal the entire finished surface 16 (the entire underside of the top 11, the entire underside of the leg portion 18, the entire underside of the bottom portion 19) (the entire underside 28 of the base material 27), while the decorative surface 21 exposed to the inside (downside) of the building forms the ceiling surface of the building. Furthermore, materials such as wallpaper, plywood, siding, wood, and tile should be joined to the lower surface 28 of the base material 27 by a predetermined joining means (at least one of adhesive, staples, nails, bolts, or rivets).

[0066] Figure 16 is a perspective view of a grooved deck plate 10E as another example, and Figure 17 is a front view of the grooved deck plate 10E shown in Figure 16. Figure 18 is a side view of the grooved deck plate 10E shown in Figure 16. In Figures 16 and 18, the illustration of one end edge portion 14 of the grooved deck plate 10E is omitted. In Figure 16, the front-rear direction is indicated by arrow A, the width direction by arrow B, and the up-down direction by arrow C. Figure 15 shows the state in which the first and second engaging portions 22 and 23 shown in Figure 1 are formed on the side edge portion 13 of the deck plate 10E, but the first and second engaging portions 24 and 25 shown in Figure 5 may also be formed on the side edge portion 13 of the deck plate 10E. Furthermore, one side edge 13 of the grooved deck plate 10E may have a first hook (first engaging portion) formed thereon, which is bent toward one of the sides of the casting surface 15 (upper surface) and the finished surface 16 (lower surface), and the other side edge 13 of the grooved deck plate 10E may have a second hook (second engaging portion) formed thereon, which is bent toward the other of the sides of the casting surface 15 (upper surface) and the finished surface 16 (lower surface).

[0067] The channel-shaped deck plate 10E (deck for composite slabs) is made by bending a steel plate and is formed from top portions 11 of a predetermined area that extend in the front-to-back direction and are spaced a predetermined distance apart in the width direction, and groove portions 12 that are located between the top portions 11, extend in the front-to-back direction and are spaced a predetermined distance apart in the width direction. It has both side edges 13 that extend in the front-to-back direction, both end edges 14 that extend in the width direction, and a concrete pouring surface 15 (top surface) and a finishing surface 16 (bottom surface). In the channel-shaped deck plate 10E shown in Figure 15, two top portions 11 and one groove portion 12 are formed, but there is no particular limit to the number of top portions 11 and groove portions 12, and three or more top portions 11 and two or more groove portions 12 may be formed depending on the size of the ceiling slab to be constructed and the required strength.

[0068] The bottom portions 19 located on both sides of the grooved deck plate 10E form the side edge portions 13, and the top portion 11, leg portions 18, and bottom portion 19 located at the front and rear ends of the deck plate 10E form the end edge portions 14. The groove portion 12 has a pair of leg portions 18 that extend inclined toward the inside (downward) of the building from the edge 17 of the adjacent top portion 11 in the width direction, and a bottom portion 19 located between the leg portions 18 and extending in the front and rear direction. The top surface of the top portion 11, the top surface of the leg portions 18, and the top surface of the bottom portion 19 become the casting surface 15 (top surface), and the bottom surface of the top portion 11, the bottom surface of the leg portions 18, and the bottom surface of the bottom portion 19 become the finished surface 16 (bottom surface).

[0069] Two recessed portions 32 (ribs) are formed in the center of the top portion 11, recessed downwards and extending in the front-to-back direction. Convex portions 33 (ribs) are formed in the center and lower part of the leg portion 18, convex outwards in the width direction and extending in the front-to-back direction. A convex portion 34 (rib) is formed in the center of the bottom portion 19, convex upwards and extending in the front-to-back direction. A predetermined ceiling finishing material 20 is joined to the side of the channel-shaped deck plate 10E that is exposed to the inside (lower) of the building by a predetermined joining means. In the channel-shaped deck plate 10E, the ceiling finishing material 20 conceals the entire surface 16 (the entire lower surface of the top portion 11, the entire lower surface of the leg portion 18, and the entire lower surface of the bottom portion 19), and the decorative surface 21 of the ceiling finishing material 20 forms the ceiling surface of the building.

[0070] The ceiling finishing material 20 uses at least one of the following: a cloth of a predetermined area extending flat in the front-to-back and width directions; plywood of a predetermined area extending flat in the front-to-back and width directions; siding material of a predetermined area extending flat in the front-to-back and width directions; or wood of a predetermined area extending flat in the front-to-back and width directions. The cloth, plywood, siding material, and wood used in the grooved deck plate 10E are the same as those used in the grooved deck plate 10A, and the means of joining the cloth, plywood, siding material, and wood to the finished surface 16 (bottom surface) of the bottom portion 19 are the same as those used in the grooved deck plate 10A. In addition, it is sufficient that the cloth, plywood, siding material, and wood are joined to the finished surface 16 (bottom surface) of the bottom portion 19 by a predetermined joining means (at least one of adhesive, staples, nails, bolts, and rivets).

[0071] Figure 19 is a perspective view of a grooved deck plate 10F as another example, and Figure 20 is a front view of the grooved deck plate 10F of Figure 19. Figure 21 is a side view of the grooved deck plate 10F of Figure 19. In Figures 19 and 21, the illustration of one end edge portion 14 of the grooved deck plate 10F is omitted. In Figure 19, the first and second engaging portions 22 and 23 shown in Figure 1 are formed on the side edge portion 13 of the deck plate 10F, but the first and second engaging portions 24 and 25 shown in Figure 5 may also be formed on the side edge portion 13 of the deck plate 10F. Furthermore, a first hook (first engaging portion) may be formed on one side edge 13 of the grooved deck plate 10F, bent toward one of the sides of the casting surface 15 (upper surface) and the finished surface 16 (lower surface), and a second hook (second engaging portion) may be formed on the other side edge 13 of the grooved deck plate 10F, bent toward the other of the sides of the casting surface 15 (upper surface) and the finished surface 16 (lower surface).

[0072] The difference between this grooved deck plate 10F and the one in Figure 15 is that a base material 27 is joined to the finished surface 16 (the lower surface of the bottom portion 19), and a ceiling finishing material 20 is joined to the lower surface 28 of the base material 27. The other components are the same as those of the grooved deck plate 10E in Figure 15, so the same reference numerals as in Figure 15 are used, and the explanation of the grooved deck plate 10E in Figure 15 is used, and a detailed explanation of the other components of this grooved deck plate 10F is omitted.

[0073] The grooved deck plate 10F (deck for composite slab) is made by bending a steel plate and is formed from a top portion 11 of a predetermined area that extends in the front-to-back direction and is spaced a predetermined distance apart in the width direction, with two recessed portions 32 (ribs) formed in the center that are recessed downward and extend in the front-to-back direction, and groove portions 12 that are located between the top portions 11 and extend in the front-to-back direction and are spaced a predetermined distance apart in the width direction. It has both side edges 13 that extend in the front-to-back direction, both end edges 14 that extend in the width direction, and a concrete pouring surface 15 (top surface) and a finishing surface 16 (bottom surface). The groove portion 12 extends inclined toward the inside (downward) of the building from the edge 17 of the adjacent top portion 11 in the width direction, and has a pair of leg portions 18 with convex portions 33 (ribs) formed in the center and below that are convex outward in the width direction and extend in the front-rear direction, and a bottom portion 19 located between the leg portions 18 and extending in the front-rear direction, with a convex portion 34 (rib) formed in the center that is convex upward and extends in the front-rear direction.

[0074] On the side of the channel-shaped deck plate 10F facing the inner (lower) side of the building, a predetermined base material 27 and a predetermined ceiling finishing material 20 are joined by predetermined joining means, and the decorative surface 21 of the ceiling finishing material 20 forms the ceiling surface of the building. The first engaging portion 22 and the second engaging portion 23 made on both side edges 13 of the channel-shaped deck plate 10F are the same as those of the channel-shaped deck plate 10A in Figure 1.

[0075] In the grooved deck plate 10F, a base material 27 (plywood (ordinary plywood), plasterboard, or wood with a thickness of 0.5 mm to 3 cm) of a predetermined area that extends flat in the front-to-back and width directions is joined (fixed) to the finished surface 16 (the underside of the bottom portion 19) by the same joining means as in the grooved deck plate 10B. The base material 27 conceals the entire area of ​​the finished surface 16 (the entire underside of the top portion 11, the entire underside of the leg portions 18, and the entire underside of the bottom portion 19). The base material 27 only needs to be joined to the finished surface 16 (the underside of the bottom portion 19) by a predetermined joining means (at least one of adhesive, staples, bolts, or rivets).

[0076] In the grooved deck plate 10F, the ceiling finishing material 20 is joined to the lower surface 28 of the base material 27 that is exposed on the inside (downward) side of the building by a predetermined joining means, so that the ceiling finishing material 20 conceals the entire finishing surface 16 (the entire lower surface 28 of the base material 27), and the decorative surface 21 of the ceiling finishing material 20 forms the ceiling surface of the building. The ceiling finishing material 20 uses at least one of the following: a predetermined area of ​​cloth extending flat in the front-to-back and width directions, a predetermined area of ​​plywood extending flat in the front-to-back and width directions, a predetermined area of ​​siding material extending flat in the front-to-back and width directions, a predetermined area of ​​wood extending flat in the front-to-back and width directions, or tile material arranged in the front-to-back and width directions.

[0077] The cross, plywood, siding material, wood, and tile material are joined to the lower surface 28 of the base material 27 by the same joining means as the channel-shaped deck plate 10B. The cross, plywood, siding material, and wood used in the channel-shaped deck plate 10F are the same as those used in the channel-shaped deck plate 10A. The tile material used in the channel-shaped deck plate 10F is the same as that used in the channel-shaped deck plate 10B. The cross, plywood, siding material, wood, and tile material conceal the entire finished surface 16 (the entire lower surface of the top portion 11, the entire lower surface of the leg portion 18, the entire lower surface of the bottom portion 19) (the entire lower surface 28 of the base material 27), while the decorative surface 21 exposed to the inside (downward) of the building forms the ceiling surface of the building. Furthermore, materials such as wallpaper, plywood, siding, wood, and tile should be joined to the lower surface 28 of the base material 27 by a predetermined joining means (at least one of adhesive, staples, nails, bolts, or rivets).

[0078] In the grooved deck plate 10A in Figure 1, the grooved deck plate 10C in Figure 10, and the grooved deck plate 10E in Figure 15, at least one decorative surface 21 of the ceiling finishing material 20, which is joined (fixed) to the finished surface 16 (underside of the bottom portion 19) from among cloth, plywood, siding material, and wood, forms the ceiling surface of the ceiling slab. Since the decorative surface 21 of the cloth, plywood, siding material, and wood is exposed on the inside (below) of reinforced concrete buildings and steel-reinforced concrete buildings as the ceiling surface of the ceiling slab, the appearance of the finished surface 16 (underside) of the grooved deck plate 10A, 10C, and 10E that is exposed on the inside (below) of these buildings can be improved, and the side of the finished surface 16 (cloth, plywood, siding material, and wood) of the grooved deck plate 10A, 10C, and 10E can be used as a good-looking ceiling surface.

[0079] The grooved deck plates 10A, 10C, and 10E have at least one of the following materials joined (fixed) to the entire finished surface 16 (the entire underside of the bottom portion 19): cross, plywood, siding material, or wood. Since the cross, plywood, siding material, or wood forms the ceiling surface of the ceiling slab in reinforced concrete buildings, reinforced steel-framed concrete buildings, etc., the cross, plywood, siding material, or wood can be used as ceiling finishing material 20. With the grooved deck plates 10A, 10C, and 10E, the decorative surface 21 of the cross, plywood, siding material, or wood joined to the finished surface 16 (the underside of the bottom portion 19) forms the ceiling surface. Therefore, the ceiling slab can be constructed without attaching ceiling finishing materials such as decorative plywood, gypsum board, or aluminum panels using suspension bolts, thus eliminating the need for separate ceiling finishing work to install ceiling finishing materials, and saving time and cost for ceiling finishing work.

[0080] The 10A, 10C, and 10E grooved deck plates eliminate the need to attach ceiling finishing materials such as decorative plywood, gypsum board, and aluminum panels using suspension bolts. Compared to suspended ceiling structures that use suspension bolts to attach ceiling finishing materials, they allow for the construction of ceiling slabs that prevent ceiling collapse accidents, even in the event of shaking (vibration) caused by earthquakes, etc., as there is no risk of wallpaper, plywood, siding materials, or wood falling. The 10A, 10C, and 10E grooved deck plates allow you to create a desired ceiling surface by selecting your preferred wallpaper, plywood, siding materials, or wood from a variety of options. Furthermore, old wallpaper, plywood, siding materials, or wood can be easily replaced with new ones of your choice to create the desired ceiling surface.

[0081] In the grooved deck plate 10B in Figure 8, the grooved deck plate 10D in Figure 13, and the grooved deck plate 10F in Figure 18, the base material 27 is joined (fixed) to the finished surface 16 (underside of the bottom portion 19) by joining means, and the decorative surface 21 of the ceiling finishing material 20, which is joined to the underside 28 of the base material 27 by joining means, is the ceiling of reinforced concrete buildings and steel-reinforced concrete buildings. Because a grooved surface is formed and materials such as cross, plywood, siding, wood, and tiles are exposed on the inside (downward) side of the building as the ceiling surface of the ceiling slab, the appearance of the finished surface 16 (bottom surface) of the grooved deck plates 10B, 10D, and 10F that are exposed on the inside (downward) side of the building can be improved, and the finished surface 16 (cross, plywood, siding, wood, and tiles) of the grooved deck plates 10B, 10D, and 10F can be used as a good-looking ceiling surface.

[0082] The grooved deck plates 10B, 10D, and 10F have at least one of the following materials joined (fixed) to the entire lower surface 28 (entire finished surface 16) of the base material 27: cross, plywood, siding material, wood, and tile material. Since the cross, plywood, siding material, wood, and tile material form the ceiling surface of the ceiling slab of reinforced concrete buildings, reinforced steel-framed concrete buildings, and reinforced concrete buildings, the cross, plywood, siding material, wood, and tile material can be used as ceiling finishing material 20. The grooved deck plates 10B, 10D, and 10F have decorative surfaces 21 made of cross, plywood, siding, wood, or tiles that are joined (fixed) to the lower surface 28 of the base material 27, forming the ceiling surface. Therefore, it is possible to construct a ceiling slab without installing ceiling finishing materials such as decorative plywood, gypsum board, or aluminum panels using suspension bolts, thus eliminating the need for separate ceiling finishing work and saving time and cost for ceiling finishing work.

[0083] The 10B, 10D, and 10F grooved deck plates eliminate the need to attach ceiling finishing materials such as decorative plywood, gypsum board, and aluminum panels using suspension bolts. Compared to suspended ceiling structures that use suspension bolts to attach ceiling finishing materials, even if shaking (vibration) occurs due to earthquakes, there is no risk of the base material, wallpaper, plywood, siding, wood, or tiles falling, making it possible to construct a ceiling slab that can prevent ceiling collapse accidents. The 10B, 10D, and 10F grooved deck plates allow you to select your desired wallpaper, plywood, siding, wood, or tiles from a variety of options, creating a ceiling surface that exposes the desired wallpaper, plywood, siding, wood, or tiles. Furthermore, old wallpaper, plywood, siding, wood, or tiles can be easily replaced with new ones of your choice to create the desired ceiling surface.

[0084] The grooved deck plates 10A-10F are made of various types of crosses with different patterns, designs, colors (hues), textures, gloss, and thickness dimensions of the decorative surface 21, various types of plywood with different patterns, designs, colors (hues), textures, gloss, and thickness dimensions of the decorative surface 21, various types of siding materials with different patterns, designs, colors (hues), textures, gloss, and thickness dimensions of the decorative surface 21, various types of wood with different patterns (wood grain) and thickness dimensions of the decorative surface 21, and various types of deck plates 10A-10F are made of various types of crosses with different patterns, designs, colors (hues), textures, gloss, and thickness dimensions of the decorative surface 21. You can choose from a variety of tile materials with different thicknesses and other shapes, allowing you to create a ceiling surface that you like, where your desired wallpaper, plywood, siding, wood, or tile material is exposed. Furthermore, by replacing the wallpaper, plywood, siding, wood, or tile material, you can easily replace old wallpaper, plywood, siding, wood, or tile material with new wallpaper, plywood, siding, wood, or tile material of your choice, thus easily creating the desired ceiling surface.

[0085] The grooved deck plates 10A to 10F allow various types of wallpaper, plywood, siding, wood, and tile materials to be joined (fixed) to the finished surface 16 (underside of the bottom portion 19) or the base material 27 by at least one of adhesive, staples, nails, bolts, or rivets, and the base material 27 is joined (fixed) to the finished surface 16 (underside of the bottom portion 19). As a result, various types of wallpaper, plywood, siding, wood, and tile materials can be easily joined, and the base material 27 can be firmly joined to the finished surface 16 (underside of the bottom portion 19). Furthermore, the wallpaper, plywood, siding, wood, and tile materials can be firmly joined to the base material 27, and peeling or falling of the wallpaper, plywood, siding, wood, tile materials and base material 27 from the finished surface 16 (underside of the bottom portion 19) can be reliably prevented. [Explanation of Symbols]

[0086] 10A Grooved Deck Plate 10B Grooved Deck Plate 10C grooved deck plate 10D grooved deck plate 10E Grooved Deck Plate 10F Grooved Deck Plate 11 Top 12 grooves 13 Side edge 14 Edge 15 Casting surface (top surface) 16 Finished surface (bottom surface) 17 Edge 18 Leg section 19 Bottom part 20 Ceiling finishing materials 21 Decorative surface 22 First engaging portion 22a Convex part (slanted part) 23 Second engaging part 23a 1st slope section 23b horizontal part 23c 2nd slope section 23d Entry opening 24 First engagement part 24a Slope section 24b Access opening 25. Section 2 25a Inclined section 25b In-line section 26 Lateral ridges 27 subfloor materials 28 Below 29. Concave portion 30 Convex portion 31 Convex portion 32. Concave portion 33 Convex portion 34 Convex portion 35 ステープル

Claims

1. In a groove-shaped deck plate of a predetermined area having both side edges extending in the front-rear direction and both end edges extending in the width direction, The grooved deck plate is formed from top portions extending in the front-rear direction and spaced apart by a predetermined distance in the width direction, and groove portions located between the top portions, extending in the front-rear direction, recessed toward the inside of the building, and spaced apart by a predetermined distance in the width direction, wherein the groove portions have a pair of leg portions extending toward the inside of the building from the edges of adjacent top portions in the width direction, and a bottom portion located between the leg portions and extending in the front-rear direction. A predetermined ceiling finishing material has side edges that extend in the front-rear direction parallel to the side edges of the channel-shaped deck plate, and is joined to the side of the channel-shaped deck plate that is exposed to the inside of the building by a predetermined joining means, and the decorative surface of the ceiling finishing material forms the ceiling surface of the building. As an example, a plurality of elastically deformable first engagement portions, arranged at predetermined distances apart in the front-rear direction, are formed on the bottom portion forming one side edge of the groove-shaped deck plate, and an elastically deformable second engagement portion extending in the front-rear direction is formed on the bottom portion forming the other side edge of the groove-shaped deck plate. The first engaging portion is an elastically deformable inclined portion that slopes upward at a predetermined angle from one side edge to the other side edge, created by cutting the bottom portion forming one side edge in an uneven manner and bending a substantially rectangular convex portion extending laterally in the width direction back toward the casting surface of the bottom portion; the second engaging portion is formed from an elastically deformable first inclined portion created by bending the bottom portion forming the other side edge towards the casting surface and inclining the bottom portion upward in the width direction outward, a horizontal portion extending substantially horizontally outward in the width direction from the tip of the first inclined portion, and an elastically deformable second inclined portion created by bending the tip of the horizontal portion back toward the casting surface of the bottom portion and inclining downward toward the casting surface of the bottom portion, and an engagement opening extending in the front-rear direction is formed in the horizontal portion. In the grooved deck plate described above, in the process of connecting a plurality of grooved deck plates laterally by facing the side edges of the ceiling finishing material laterally, the second inclined portion of the second engaging portion rides up onto the casting surface of the convex portion (inclined portion) of the first engaging portion, the second inclined portion presses the convex portion (inclined portion) downward, the convex portion is pushed downward by the second inclined portion, the convex portion elastically deforms downward as a reaction, and the first inclined portion of the second engaging portion elastically deforms upward, and when the second inclined portion of the second engaging portion overcomes the convex portion, the pressing force of the second inclined portion is released, the first inclined portion elastically deforms downward, and the convex portion (inclined portion) elastically deforms upward, the convex portion engages with the engagement opening of the horizontal portion of the second engaging portion, and the first engaging portion and the second engaging portion engage.

2. The grooved deck plate according to claim 1, wherein the ceiling finishing material is at least one of a cloth of a predetermined area extending flat in the front-to-back direction and the width direction, a plywood of a predetermined area extending flat in the front-to-back direction and the width direction, a siding material of a predetermined area extending flat in the front-to-back direction and the width direction, and a wood of a predetermined area extending flat in the front-to-back direction and the width direction, and the finishing surface is the lower surface of the top portion, the lower surface of the leg portion, and the lower surface of the bottom portion, and at least one of the cloth, the plywood, the siding material, and the wood is joined to the lower surface of the bottom portion by the joining means, and is spaced apart from the lower surface of the top portion and the lower surface of the leg portion, and its decorative surface forms the ceiling surface of the building while concealing the top portion, the leg portion, and the bottom portion.

3. The grooved deck plate according to claim 2, wherein the joining means is a staple with adhesive applied to the needle, and in the grooved deck plate, at least one of the cross, the plywood, the siding material, and the wood is joined to the lower surface of the bottom portion of the grooved deck plate by a plurality of staples driven in from the upper surface of the bottom portion of the grooved deck plate.

4. The grooved deck plate according to claim 2 or 3, wherein the joining means is an adhesive, and in the grooved deck plate, at least one of the cross, the plywood, the siding material, and the wood is joined to the lower surface of the bottom portion of the grooved deck plate by the adhesive.

5. The ceiling finishing material is at least one of the following: a cloth of a predetermined area extending flat in the front-to-back direction and the width direction; plywood of a predetermined area extending flat in the front-to-back direction and the width direction; siding material of a predetermined area extending flat in the front-to-back direction and the width direction; wood of a predetermined area extending flat in the front-to-back direction and the width direction; and tile material arranged in the front-to-back direction and the width direction, and the finishing surface is the lower surface of the top portion, the lower surface of the leg portion, and the front A grooved deck plate according to claim 1, wherein a base material of a predetermined area extending flat in the front-to-back direction and the width direction is joined to the lower surface of the bottom portion by the joining means, and at least one of the cloth, plywood, siding material, wood, and tile material is joined to the lower surface of the base material by the joining means, and the decorative surface is spaced apart from the lower surface of the top portion and the lower surface of the leg portion, concealing the top portion, the leg portion and the bottom portion, while forming the ceiling surface of the building.

6. The grooved deck plate according to claim 5, wherein the joining means is a staple with adhesive applied to the needle, and in the grooved deck plate, the base material is joined to the lower surface of the bottom portion of the grooved deck plate by a plurality of staples driven in from the upper surface of the bottom portion of the grooved deck plate, and at least one of the cross, the plywood, the siding material, and the wood is joined to the lower surface of the base material by a plurality of staples driven in from the upper surface of the bottom portion of the grooved deck plate.

7. The grooved deck plate according to claim 5 or 6, wherein the joining means is an adhesive, and in the grooved deck plate, the base material is joined to the lower surface of the bottom portion of the grooved deck plate by the adhesive, and at least one of the cloth, plywood, siding material, wood, and tile material is joined to the lower surface of the base material by the adhesive.

8. The grooved deck plate according to any one of claims 2 to 7, wherein the cloth is any of vinyl wallpaper, fabric wallpaper, glass wallpaper, paper wallpaper, inorganic wallpaper, wood-based wallpaper, or olefin wallpaper; the plywood is any of high-pressure melamine decorative laminate, low-pressure melamine decorative laminate, veneer decorative laminate, olefin decorative laminate, polyester decorative laminate, printed decorative laminate, DAP decorative laminate, or vinyl decorative laminate; the siding material is any of metal siding, ceramic siding, wood-based siding, or resin siding; and the wood is any of coniferous wood or hardwood wood.

9. The grooved deck plate according to claim 5 or claim 7, wherein the tile material is any of porcelain tiles, stoneware tiles, or ceramic tiles.

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