Bed structure

Abstract

To provide a floor structure capable of connecting units to each other with a small number of components and excellent in durability.SOLUTION: While a floor unit is configured by a plurality of deck materials and bar materials connecting these deck materials, one or both of a first convex part formed by projecting the bar material outward in a width direction of the deck material and a second convex part formed by being shifted outward in a length direction of the deck material, and one or both of a first recess part formed by pulling the bar material inward in the width direction of the deck material and a second recess part formed by being shifted inward in the length direction of the deck material are provided on at least a part of the plurality of floor units, and a first convex part or a second convex part of a predetermined floor unit is arranged in a first recess part or a second recess part of adjacently arranged another floor unit, and the first convex part or the second convex part is fixed to the deck material of the other floor unit to connect the floor units to each other.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a floor structure constructed by laying a plurality of units. [Background technology]

[0002] In recent years, floor structures constructed by laying multiple units, such as indoor double floors and outdoor deck floors, have become known (see, for example, Patent Document 1). These floor structures generally include those in which units are connected to each other via connecting members as described in Patent Document 1, and those in which the side edges of the units are fitted together in a notched shape and connected by bolts or the like.

[0003] However, when using a connecting member in the above conventional floor structure, the connecting member is required in addition to the unit, which increases the number of parts and increases the cost. Also, the method of forming the side edge of the unit into a notched shape requires processing the floorboard to form a step portion or attaching a plate member along the side edge of the floorboard to form a step portion, which increases the manufacturing cost.

[0004] Furthermore, in a floor structure that uses the connecting members described in the above-mentioned Document 1, when a downward load is applied to the boundary between the units, the load is concentrated on the connecting members, and therefore the connecting members are prone to damage in applications where the floor surface is subjected to repeated loads, such as applications where many people walk on the floor, or applications where heavy loads are applied to the floor surface, such as applications where heavy objects such as planters are placed on the floor. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent No. 3943227 DISCLOSURE OF THEINVENTION [Problem to be solved by the invention]

[0006] The present invention aims to solve the problems of the conventional technology described above. In summary, the object of the present invention is to provide a floor structure that allows units to be connected to each other with a small number of parts and has excellent durability even when repeated or large loads are applied to the floor surface. [Means for solving the problem]

[0007] As a means for solving the above-mentioned problems, the inventor has adopted a floor structure constructed by laying out bed units which form a square or rectangular floor surface in a plan view, the bed units being composed of a plurality of deck materials which are aligned in the length direction and arranged side by side in the width direction, and a bar material which is hung between each of the deck materials with the width direction of the deck materials as the longitudinal direction and is attached to the bottom surface of the deck materials to connect each of the deck materials, while providing at least a portion of the plurality of bed units with one or both of a first convex portion formed by protruding the bar material outward in the width direction of the deck material and a second convex portion formed by shifting the deck material outward in the length direction, and one or both of a first recess formed by retracting the bar material inward in the width direction of the deck material and a second recess formed by shifting the deck material inward in the length direction, and a configuration in which the first convex portion or the second convex portion of a predetermined bed unit is placed in the first recess or the second recess of another bed unit which is arranged adjacently, and the first convex portion or the second convex portion is fixed to the deck material of the other bed unit, thereby connecting the bed units to each other.

[0008] Furthermore, the above-mentioned floor units are provided with at least two bar materials, and by arranging each bar material at both ends of the length of the deck material, the floor units can be connected in a row and columns when viewed in a plane.

[0009] In addition, in the present invention, at least a portion of the multiple floor placement units are provided with a third convex portion formed by protruding the bar material outward in the length direction of the deck material and shifting it outward in the width direction of the deck material, and a third recess portion formed by retracting the bar material inward in the length direction of the deck material and shifting it inward in the width direction of the deck material, and the third convex portion of a specific floor placement unit is placed within the third recess portion of another floor placement unit arranged diagonally opposite, and the third convex portion is fixed to the deck material of the other floor placement unit, thereby connecting the floor placement units to each other.

[0010] In addition, in the present invention, the multiple bed units include a first bed unit having a first convex portion and a first recess on two opposing sides and a second convex portion and a second recess on two other opposing sides, a second bed unit having a first convex portion on each of two opposing sides and a second convex portion and a second recess on the other two opposing sides, a third bed unit having a first convex portion and a first recess on each of two opposing sides and a second convex portion on each of the other two opposing sides, and a fourth bed unit having a first convex portion on each of two opposing sides and a second convex portion on the other two opposing sides, so that the first convex portion or the second convex portion can be arranged around the outer periphery of the entire floor surface formed by laying out the multiple bed units.

[0011] Furthermore, when the above-mentioned multiple floor units are laid out to form the entire floor surface, and the first or second convex portion is provided on one side of the floor unit that forms the outer periphery of the entire floor surface, the integrity of the floor surface can be enhanced by attaching an outer edge material to the first or second convex portion.

[0012] Furthermore, with regard to the entire floor surface formed by the multiple floor units, the floor units can be arranged so that the deck material of adjacent floor units is oriented in one direction to form a flush-lay pattern, or the deck material of adjacent floor units is oriented in a different direction to form a checkerboard pattern. Effect of the Invention

[0013] In the floor structure of the present invention, a convex portion and a concave portion are formed on the side edge by the bar material that connects the deck material, and the convex portion of a given floor unit is placed in the concave portion of another adjacent floor unit, and the floor units can be connected to each other by screws, etc., so that the connecting members used in the conventional technology are not required. In addition, the convex portion and the concave portion of the floor unit can be formed simply by adjusting the length and the attachment position of the bar material, so the floor units can be easily manufactured.

[0014] Moreover, the floor structure of the present invention can be supported by the bar material even when a load is applied to the floor surface of the floor unit and to the boundary between the floor units, so there is no need to worry about damage to the connecting members, and it can be used without problems in applications where the floor surface is repeatedly subjected to loads or where a large load is applied to the floor surface. In addition, the floor structure of the present invention can be easily disassembled and assembled, so it can also be used for temporary use at events, etc. [Brief description of the drawings]

[0015] [Figure 1] 1A and 1B are a plan view and a bottom view showing a floor structure in a first embodiment of the present invention. [Diagram 2] FIG. 2 is an explanatory exploded view showing a disassembled state of the floor structure in the first embodiment of the present invention. [Diagram 3] FIG. 2 is a plan view showing the floor placement unit according to the first embodiment of the present invention. [Figure 4] 1A and 1B are plan and bottom views showing a modified example of the floor structure in the first embodiment of the present invention. [Diagram 5] 1A and 1B are plan and bottom views showing a modified example of the floor structure in the first embodiment of the present invention. [Figure 6] 1A and 1B are plan and bottom views showing a modified example of the floor structure in the first embodiment of the present invention. [Figure 7] FIG. 11 is a plan view showing a floor placement unit in a second embodiment of the present invention. [Figure 8] 11A and 11B are plan and bottom views showing a floor structure in a second embodiment of the present invention. [Figure 9]FIG. 11 is a plan view showing a modified example of the floor structure in the second embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] "First embodiment" A first embodiment of the present invention will be described with reference to Figs. 1 to 6. In the drawings, the reference symbol F indicates a floor structure, and the reference symbol U indicates a floor unit. The reference symbol 1 indicates a deck material, the reference symbol 2 indicates a bar material, and the reference symbol 3 indicates an outer edge material.

[0017] "Floor structure configuration" [1] Basic configuration The basic configuration of the floor structure F of this embodiment will be described. In this embodiment, as shown in Fig. 1(a)(b) and Fig. 2, a plurality of floor units U that form a square floor surface in a plan view are laid out to form the floor structure F. As shown in Fig. 3(a)-(d), each floor unit U is composed of a plurality of deck materials 1 arranged side by side in the width direction with their lengths aligned, and bar materials 2 that are hung between each of the deck materials 1 with the width direction of these deck materials 1 as the longitudinal direction. As shown in Fig. 1(b) and Fig. 2, each bar material 2 is attached to the bottom surface of the deck material 1 to connect each of the deck materials 1.

[0018] 3(a)-(f) used in this embodiment has, at its outer periphery, one or both of a first convex portion C1 formed by protruding the bar material 2 outward in the width direction of the deck material 1, and a second convex portion C2 formed by shifting the bar material 2 outward in the length direction of the deck material 1. Furthermore, the floor unit U in Figs. 3(a)-(f) has, at its outer periphery, one or both of a first recess R1 formed by retracting the bar material 2 inward in the width direction of the deck material 1, and a second recess R2 formed by shifting the bar material 2 inward in the length direction of the deck material 1.

[0019] 2, the floor placement units U of this embodiment can be connected to each other in the vertical and horizontal directions in a plan view by arranging the first convex portion C1 or the second convex portion C2 of the floor placement unit U in the first recessed portion R1 or the second recessed portion R2 of another floor placement unit U that is adjacently arranged, and fixing the first convex portion C1 or the second convex portion C2 to the deck material 1 of the other floor placement unit U. This allows the floor placement units U to be connected to each other by the bar material 2 that connects the deck material 1. The specific contents of each floor placement unit U and the connection method therefor will be described later.

[0020] Furthermore, in this embodiment, when the floor units U are laid out to form the entire floor surface, a first convex portion C1 or a second convex portion C2 is provided on one side of the floor units U that form the periphery of the entire floor surface as shown in Fig. 1(b). Then, as shown in Fig. 1(a) and Fig. 2, an outer edge material 3 is attached to the first convex portion C1 and the second convex portion C2 to hide the end of the deck material 1 and surround the periphery of the floor surface with the outer edge material 3, thereby forming the outer frame of the floor structure F.

[0021] [2] Floor-mounted unit [2-1] First floor unit The square-shaped first bed unit U1 shown in FIG. 3(a) has a first convex portion C1 and a first concave portion R1 on two opposing sides (left edge and right edge) in a plan view, and a second convex portion C2 and a second concave portion R2 on the other opposing two sides (upper edge and lower edge). Furthermore, a third convex portion C3 is provided at the upper left corner of the first bed unit U1, which protrudes the bar material 2 outward in the length direction of the deck material 1 and is shifted outward in the width direction of the deck material 1, and a third concave portion R3 is provided at the lower right corner, which retracts the bar material 2 inward in the length direction of the deck material 1 and is shifted inward in the width direction of the deck material 1. The first convex portion C1, the second convex portion C2, and the third convex portion C3, as well as the first concave portion R1, the second concave portion R2, and the third concave portion R3 are names of areas (ranges) centered on the area surrounded by dotted lines in the drawing, and one or more convex portions are formed on the same bar material 2.

[0022] The first bed unit U1 is used for the four upper left bed units out of the nine bed units U shown in Fig. 1 and Fig. 2. As shown in Fig. 2, the first convex part C1 of the first bed unit U1 is placed in the first concave part R1 of the first bed unit U1 to connect in the horizontal direction, and the second convex part C2 of another second bed unit U2 is placed in the second concave part R2 of the first bed unit U1 to connect in the vertical direction. For diagonal connection, the third convex part C3 of the first bed unit U1 is placed in the third concave part R3 of another first bed unit U1 placed diagonally, and this third convex part C3 is fixed to the deck material 1 of the other first bed unit U1 to connect the bed units U1·U1.

[0023] Of the four first floor units U1 used in the above-mentioned floor structure F, the three first floor units U1 located on the left and upper sides in Figure 2 have a first convex portion C1 and a second convex portion C2 formed on one side on the left and upper sides that form the outer periphery of the entire floor surface, and an outer edge material 3 is attached to each of the upper surfaces of these.

[0024] [2-2] Second floor unit The square-shaped second bed unit U2 shown in FIG. 3(b) has a first convex C1 on each of two opposing sides (left edge and right edge), and a second convex C2 and a second concave R2 on the other opposing two sides (upper edge and lower edge). Furthermore, a third convex C3 is provided on each of the upper left and upper right corners of the second bed unit U2. This second bed unit U2 is used for the upper right two of the nine bed units U·U... shown in FIG. 1 and FIG. 2. As shown in FIG. 2, the first convex C1 of the second bed unit U2 is placed in the first concave R1 of the first bed unit U1 to connect them in the horizontal direction, the second convex C2 of another second bed unit U2 is placed in the second concave R2 of the second bed unit U2 to connect them in the vertical direction, and the third convex C3 of the second bed unit U2 is placed in the third concave R3 of the first bed unit U1 to connect them in the diagonal direction.

[0025] The two second floor units U2 in Figure 2 used in the above-mentioned floor structure F have a first convex portion C1 and a second convex portion C2 formed on the right and upper sides that form the outer periphery of the entire floor surface, and outer edge materials 3·3... are attached to the upper surfaces of these, respectively.

[0026] [2-3] Third floor unit The square-shaped third bed unit U3 shown in FIG. 3(c) has a first convex C1 and a first concave R1 on two opposing sides (left edge and right edge), and a second convex C2 on the other two opposing sides (upper edge and lower edge). Furthermore, a third convex C3 is provided at the upper left and lower left corners of the third bed unit U3. This third bed unit U3 is used for the two lower left of the nine bed units U shown in FIG. 1 and FIG. 2. As shown in FIG. 2, the second convex C2 of the third bed unit U3 is arranged in the second concave R2 of the first bed unit U1 to connect in the vertical direction, the first convex C1 of another third bed unit U3 is arranged in the first concave R1 of the third bed unit U3 to connect in the horizontal direction, and the third convex C3 of the third bed unit U3 is arranged in the third concave R3 of the first bed unit U1 to connect in the diagonal direction.

[0027] The two third floor units U3 in Figure 2 used in the above-mentioned floor structure F have a first convex portion C1 and a second convex portion C2 formed on the left and lower sides that form the outer periphery of the entire floor surface, and an outer edge material 3 is attached to the upper surfaces of these.

[0028] [2-4] Fourth floor unit The square-shaped fourth bed unit U4 shown in FIG. 3(d) has a first convex C1 on each of two opposing sides (left edge and right edge), and a second convex C2 on each of the other opposing sides (upper edge and lower edge). Furthermore, a third convex C3 is provided at each of the left, right, upper and lower corners of the fourth bed unit U4. This fourth bed unit U4 is used as the lower right one of the nine bed units U shown in FIG. 1 and FIG. 2. As shown in FIG. 2, the second convex C2 of the fourth bed unit U4 is arranged in the second recess R2 of the second bed unit U2 to connect in the vertical direction, the first convex C1 of the fourth bed unit U4 is arranged in the first recess R1 of the third bed unit U3 to connect in the horizontal direction, and the third convex C3 of the fourth bed unit U4 is arranged in the third recess R3 of the first bed unit U1 to connect in the diagonal direction.

[0029] The third floor unit U3 in Figure 2 used in the above-mentioned floor structure F has a first convex portion C1 and a second convex portion C2 formed on the right and lower sides that form the outer periphery of the entire floor surface, and an outer edge material 3 is attached to the upper surfaces of these.

[0030] [3] Floor structure with a flush-fitting design By arranging the above four types of first floor unit U1, second floor unit U2, third floor unit U3, and fourth floor unit U4 in combination, a floor structure F with a flush-lay pattern in which the deck materials are aligned in one direction as shown in Figures 1(a) and (b) can be constructed. Also, as shown in Figure 1(b), the bar materials 2 of each floor unit U are lined up in a row, which creates the effect of a joist, and even if a load is applied to the floor surface during use, the deck material 1 between the bar materials 2 and 2 bends, dispersing and absorbing the load.

[0031] [4] Example of modification of floor-mounted unit [4-1] Fifth floor unit The square-shaped fifth bed unit U5 shown in Fig. 3(e) has a first convex part C1 and a first concave part R1 on two opposing sides (left edge and right edge), and a second convex part C2 and a second concave part R2 on the other opposing two sides (upper edge and lower edge). In addition, a third convex part C3 is provided at the lower left corner of the fifth bed unit U5, and a third concave part R3 is provided at the upper right corner. The fifth bed unit U5 is a vertically symmetrical shape of the first bed unit U1 in Fig. 3(a).

[0032] [4-2] Sixth Floor Unit The square-shaped sixth bed unit U6 shown in Fig. 3(f) has both a first convex portion C1 (lower left) and a first concave portion R1 (upper left) on one side (left edge) of two opposing sides (left edge and right edge), and a first convex portion C1 (upper right and lower right) on the other side (right edge). In addition, a second convex portion C2 is provided on each of the other two opposing sides (upper edge and lower edge), and a third convex portion C3 is provided at each of the lower left, upper right, and lower right corners of the sixth bed unit U6.

[0033] [5] Examples of floor structure changes [5-1] Square checkered floor structure By arranging the above-mentioned first floor unit U1, second floor unit U2, third floor unit U3 and fifth floor unit U5 in combination, a floor structure F with a checkerboard pattern in which the orientation of the deck material alternates as shown in Figure 4(a)(b) can be constructed. Also, as shown in Figure 4(a)(b), the bar materials 2 of each floor unit U are arranged in a square or U-shape to provide the effect of a joist or base, and even if a load is applied to the floor surface during use, the deck material 1 between the bar materials 2 and 2 will bend, dispersing and absorbing the load.

[0034] [5-2] Cross-shaped floor structure The second floor unit U2, the third floor unit U3, the fourth floor unit U4, the fifth floor unit U5, and the sixth floor unit U6 are combined and arranged to form a cross-shaped floor structure F as shown in Fig. 5(a)(b). This floor structure F can be formed into a pattern in which the deck material 1 is aligned in one direction, and the bar material 2 of the floor unit U is aligned in a row to provide a joist effect. The cross-shaped outer frame of the floor structure F can be formed by providing a first convex part C1 or a second convex part C2 on one side of the floor unit U that forms the periphery of the entire floor surface and attaching an outer edge material 3 to the first convex part C1 or the second convex part C2.

[0035] [5-3] Cross-shaped checkered floor structure The first floor unit U1, the second floor unit U2, the third floor unit U3, the fourth floor unit U4, the fifth floor unit U5 and the sixth floor unit U6' are combined and arranged to form a cross-shaped floor structure F as shown in Fig. 6(a)(b). The sixth floor unit U6' used here is a vertically symmetrical shape of the sixth floor unit U6 shown in Fig. 3(e). This floor structure F can also be formed into a checkered pattern in which the orientation of the deck material 1 is alternately different, and the bar material 2 of each floor unit U is arranged in a square or U-shape to provide a pedestal effect. Furthermore, a cross-shaped outer frame of the floor structure F can be formed by attaching an outer edge material 3 to one side of the floor unit U that forms the periphery of the entire floor surface.

[0036] [5-4] Other changes The pattern and shape of the floor structure F may be other than those described above, for example, a pattern that partially combines a flush-patterned pattern and a checkered pattern. The overall shape of the floor surface of the floor structure F may be a square, rectangular, or cross shape in plan view, or may be a complex shape that matches the shape of the construction site.

[0037] [6] Deck material Next, a description will be given of each component of the floor unit U. First, regarding the material of the deck material 1, although in this embodiment a wooden plastic board is used, other plastic materials (such as polypropylene, ABS resin, polyvinyl chloride resin, etc., either alone or in combination), wood, or metal materials (such as aluminum, stainless steel, etc.) can also be used as long as they are general materials used as outdoor or indoor floor materials, and are not particularly limited.

[0038] Regarding the shape of the deck material 1, tongue and groove portions (convex portions) and tenons (concave portions) for connecting the deck materials 1 arranged in the width direction can be provided on the left and right side edges. In this embodiment, tenons are formed on both sides and the deck materials 1 are connected to each other by tongue and groove joints. Regarding the width dimension of the deck material 1, in this embodiment, four sheets are arranged to form the floor surface of the floor unit U, but the number of sheets arranged can be reduced by increasing the width, and conversely, the number of sheets arranged can be increased by decreasing the width.

[0039] [7] Bar material Regarding the material of the bar material 2, in this embodiment, an aluminum square pipe is used, but other metal materials or plastic materials can be used as long as they have a certain rigidity. The shape of the bar material 2 is also not particularly limited as long as it is in the form of a plate or rod, and a cushioning material can be provided on the underside of the bar material 2 to form a contact surface. In this embodiment, two bar materials 2 are used for one floor unit U, and each bar material 2 is arranged on both ends of the deck material 1 in the longitudinal direction, but three or more bar materials 3 can also be used (described in the second embodiment).

[0040] Regarding the fixing means for the bar material 2 and the deck material 1, in this embodiment, they are fixed together with screws, but they can also be fixed together with other fixing means, for example, bolting, adhesion, welding, concave-convex fitting, connecting members, etc. Also, in this embodiment, the deck materials 1·1 and the bar materials 2 on both sides of the floor unit U are fixed together with screws, but all of the deck materials 1 and bar materials 2 can also be fixed together with screws.

[0041] [8] Outer edging material Regarding the outer edge material 3, in this embodiment, the same wood plastic rod material as the deck material 1 is used, but other plastic materials or metal materials can also be used, and materials different from the deck material 1 can also be used. Regarding the shape of the outer edge material 3, although a square cross section is used in this embodiment, a circular cross section or an L-shaped cross section can also be used. Furthermore, in this embodiment, the outer edge material 3 is attached individually to each floor unit U, but after the floor structure F is constructed, a long outer edge material 3 can also be attached across multiple floor units U.

[0042] [9] Means for connecting the floor units to each other and the outer edge material Regarding the connecting means between the adjacent floor placement units U·U, in this embodiment, screws are used to facilitate disassembly and assembly of the floor placement units U. Specifically, the floor placement units U·U are connected to each other by passing a screw through a through hole formed in the first convex portion C1, the second convex portion C2, and the third convex portion C3 of the bar material 2, and screwing the screw into a female screw portion formed in the first concave portion R1, the second concave portion R2, and the third concave portion R3 of the deck material 1. Also, regarding the connecting means for the outer edge material 3, a screw is passed through a through hole formed in the first convex portion C1, the second convex portion C2, and the third convex portion C3 of the bar material 2, and screwing the screw into a female screw portion formed in the outer edge material 3, so that the outer edge material can be attached. In addition, in this embodiment, upward protrusions are formed on the first convex portion C1, the second convex portion C2, and the third convex portion C3, and these protrusions are fitted into the corresponding holes of the first recess R1, the second recess R2, and the third recess R3, or the holes of the outer edge material 3, thereby enabling the two to be positioned and connected.

[0043] "Second embodiment" [1] Rectangular floor unit [1-1] Seventh floor unit The rectangular seventh floor unit U7 shown in Fig. 7(a) has a first convex portion C1 and a first concave portion R1 on two opposing sides (left edge and right edge), and a second convex portion C2 and a second concave portion R2 on the other two opposing sides (upper edge and lower edge). In addition, the seventh floor unit U7 has a third convex portion C3 on the upper left corner and a third concave portion R3 on the lower right corner. This seventh floor unit U7 not only has bar material 2 on both ends of the deck material 1 in the length direction, but also has a bar material 2 arranged at the middle position of the deck material 1 in the length direction, and the bar material 2 at this middle position forms a first convex portion C1 and a first concave portion R1 similar to those at both ends at the middle position of the seventh floor unit U7.

[0044] [1-2] Eighth floor unit The rectangular eighth floor unit U8 shown in Fig. 7(b) has a first convex portion C1 on each of two opposing sides (left edge and right edge), and a second convex portion C2 and a second concave portion R2 on the other two opposing sides (upper edge and lower edge). In addition, a third convex portion C3 is provided at each of the upper left and upper right corners of the eighth floor unit U8. This eighth floor unit U8 also has a bar material 2 disposed at the middle position in the longitudinal direction of the deck material 1, and the bar material 2 at this middle position forms a first convex portion C1 similar to both ends at the middle position of the eighth floor unit U8.

[0045] [1-3] 9th Floor Unit The rectangular ninth bed unit U9 shown in Fig. 7(c) has a first convex portion C1 and a first concave portion R1 on two opposing sides (left edge and right edge), and a second convex portion C2 on the other two opposing sides (upper edge and lower edge). In addition, a third convex portion C3 is provided at each of the upper left and lower left corners of the ninth bed unit U9. This ninth bed unit U9 also has a bar material 2 disposed at the middle position in the length direction of the deck material 1, and the bar material 2 at this middle position forms a first convex portion C1 and a first concave portion R1 similar to those at both ends at the middle position of the ninth bed unit U9.

[0046] [1-4] 10th Floor Unit The rectangular tenth floor unit U shown in FIG. 7(d) 10The tenth floor unit U has a first protrusion C1 on each of two opposing sides (left edge and right edge), and a second protrusion C2 on each of the other two opposing sides (upper edge and lower edge). 10 The tenth floor unit U has third protrusions C3 at its left, right, top and bottom corners. 10 Also, a bar material 2 is arranged at the middle position in the longitudinal direction of the deck material 1, and the tenth floor unit U is formed by the bar material 2 at the middle position. 10 A first protrusion C1 similar to those at both ends is formed at the intermediate position.

[0047] [2] Brick-like floor structure By combining and arranging the first floor unit U1, the third floor unit U3, and the fifth floor unit U5 of the first embodiment, and the seventh floor unit U7, the eighth floor unit U8, and the ninth floor unit U9, a floor structure F with a brick-like pattern as shown in Figures 8(a) and (b) can be constructed. Also, as shown in Figure 8(b), the bar materials 2 of each floor unit U are arranged in a row, which has the effect of a joist, and even if a load is applied to the floor surface during use, the deck material 1 between the bar materials 2 and 2 bends, so that the load can be distributed and absorbed. Also, by using a rectangular floor unit U, the number of bar materials 2 used and the number of connection operations can be reduced compared to using a square floor unit U.

[0048] [3] Example of modification of brick-like floor structure In this embodiment, a floor structure F having a pattern of a flush-mounted pattern is configured, but the second floor unit U2, the third floor unit U3, the fourth floor unit U4, and the fifth floor unit U5 of the first embodiment, as well as the seventh floor unit U7, the eighth floor unit U8, and the tenth floor unit U 10 By combining and arranging the above, a checkered pattern floor structure F as shown in FIG. 9(a) can be constructed. 10 By combining and arranging these, a complex block-patterned floor structure F as shown in Figure 9(b) can be constructed. [Explanation of symbols]

[0049] 1 Deck material 2 Bar material 3 Outer edging U Floor Unit U1 First Floor Unit U2 Second Floor Unit U3 3rd floor unit U4 Fourth Floor Unit U5 Fifth Floor Unit U6 6th Floor Unit U7 Seventh Floor Unit U8 8th floor unit U9 9th Floor Unit U 10 10th Floor Unit C1 First convex part C2 Second convex part C3 Third convex part R1 First Recess R2 Second recess R3 Third recess F floor structure

Claims

1. In a floor structure constructed by laying floor units that form a square or rectangular floor surface in a plan view, The floor unit is composed of a plurality of deck materials arranged side by side in the width direction with their lengths aligned, and a bar material that is hung between each of the deck materials with the width direction of the deck materials as the longitudinal direction and is attached to the bottom surface of the deck materials to connect each of the deck materials, A floor structure in which at least some of the multiple floor units are provided with one or both of a first convex portion formed by protruding the bar material outward in the width direction of the deck material and a second convex portion formed by shifting it outward in the length direction of the deck material, and one or both of a first recess formed by retracting the bar material inward in the width direction of the deck material and a second recess formed by shifting it inward in the length direction of the deck material, and the first convex portion or second convex portion of a specific floor unit is placed in the first recess or second recess of another floor unit arranged adjacently, and the first convex portion or second convex portion is fixed to the deck material of the other floor unit, thereby connecting the floor units to each other.

2. 2. The floor structure according to claim 1, wherein the floor unit comprises at least two or more bar materials, each of which is arranged on both ends of the deck material in the longitudinal direction.

3. 3. The floor structure according to claim 1 or 2, wherein at least some of the plurality of floor units are provided with a third convex portion formed by protruding the bar material outward in the longitudinal direction of the deck material and shifting it outward in the width direction of the deck material, and a third recess formed by retracting the bar material inward in the longitudinal direction of the deck material and shifting it inward in the width direction of the deck material, and the floor units are connected to each other by placing the third convex portion of a specific floor unit within the third recess of another floor unit arranged diagonally opposite, and fixing the third convex portion to the deck material of the other floor unit.

4. The floor structure according to any one of claims 1 to 3, wherein the plurality of bed units include a first bed unit having a first convex portion and a first recess on two opposing sides and a second convex portion and a second recess on two other opposing sides, a second bed unit having a first convex portion on each of two opposing sides and a second convex portion and a second recess on each of the other two opposing sides, a third bed unit having a first convex portion and a first recess on each of two opposing sides and a second convex portion on each of the other two opposing sides, and a fourth bed unit having a first convex portion on each of two opposing sides and a second convex portion on each of the other two opposing sides.

5. A floor structure as described in any one of claims 1 to 4, wherein the entire floor surface is formed by laying out the multiple floor units, the first convex portion or the second convex portion is provided on one side of the floor unit that forms the outer periphery of the entire floor surface, and an outer edge material is attached to the first convex portion or the second convex portion.

6. A floor structure as described in any one of claims 1 to 5, wherein the floor units are arranged so that, across the entire floor surface formed by the plurality of floor units, the deck materials of adjacent floor units are oriented in one direction to form a flush-patterned pattern, or so that the deck materials of adjacent floor units are oriented in different directions to form a checkerboard pattern.

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