Floor components

Abstract

To provide a floor component which can be easily constructed while eliminating upheaval due to thermal expansion.SOLUTION: There is provided a floor component made of synthetic resin that forms a floor by adjoining a plurality of the floor components, including a polygonal panel portion that forms the floor surface on the top surface, and a strut portion that supports the panel portion. The panel portion includes a plurality of edge portions for each side of the polygonal shape. The edge portion includes a positioning portion that determines the lengthwise position of the edge portion relative to other opposing and adjacent floor components, and an absorbent portion including an engagement portion that engages longitudinally with a positioning portion at the edge portion of another adjacent floor component and absorbing the thermal expansion of the floor component in the adjacent direction orthogonal to the length direction out of the surface directions of the upper surface. The absorbent portion includes an absorbing abutting portion configured to elastically deform by abutting the edge portion in the adjacent direction. The positioning portion is disposed in the longitudinally central portion of the at least one edge portion, and is disposed on at least one of the longitudinal one side portion and the other longitudinal side portion with respect to the positioning portion.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to floor components that are combined adjacently to form a freely accessible floor. [Background technology]

[0002] Conventionally, free-access floors have been used in offices, medical and welfare facilities, etc. Such floors are constructed by combining floor components that are laid side by side on top of a structural floor (the floor of a building), and are floors (double-floor structures) that have the function of easily accommodating power wiring, communication wiring, equipment, etc.

[0003] Patent Document 1 discloses a floor component known as a free-access floor component made of synthetic resin, which comprises a panel portion that forms the floor surface on its upper surface and a plurality of support columns that support the panel portion.

[0004] The panel portion of Patent Document 1 is formed in a rectangular shape and has one convex engaging portion and one concave engaging portion on each side (each of the four sides) that engage with adjacent components to prevent misalignment with the adjacent components. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2011-1766 Summary of the Invention [Problem to be solved by the invention]

[0006] The panel portion of the free access floor component in Patent Document 1 has convex engaging portions and concave engaging portions formed thereon for alignment with adjacent components.

[0007] However, the panel sections (free access floor components) are made of synthetic resin. This means that dimensional errors can occur in the length direction of each of the four sides of each panel section. These dimensional errors can accumulate and become excessive if the construction area of the panel section is large. Therefore, when a panel section with dimensional errors is constructed adjacent to the floor surface, construction that takes the dimensional errors into account is necessary. However, this construction work requires skilled techniques.

[0008] Furthermore, construction of free access floor components is carried out in both summer and winter, and when the free access floor components thermally expand, the joints between the panels can sometimes bulge above the floor surface.

[0009] The present invention aims to provide a floor component that is easy to install while eliminating the swelling caused by thermal expansion. [Means for solving the problem]

[0010] The present invention provides a floor component made of synthetic resin that is arranged adjacent to one another to form a floor, the floor component comprising: a polygonal panel portion that forms the floor surface on its upper surface; and support columns that support the panel portion; the panel portion has a plurality of edge portions that form each side of the polygonal shape; at least one edge portion has a positioning portion that determines the longitudinal position of the at least one edge portion relative to another adjacent floor component that faces the at least one edge portion; the positioning portion includes an engaging portion that engages in the longitudinal direction with the positioning portion of at least one edge portion of the other adjacent floor component; the at least one edge portion has an absorbing portion that absorbs thermal expansion of the floor component in an adjacent direction perpendicular to the longitudinal direction within the planar direction of the upper surface; the absorbing portion includes an absorbing abutment portion that is configured to abut in the adjacent direction against at least one edge portion of the other adjacent floor component and elastically deform; the positioning portion is located in the longitudinal center of the at least one edge portion; and the absorbing portion is located on at least one of the longitudinal side and the other side of the positioning portion.

[0011] In the above configuration, synthetic resin floor components are prone to dimensional errors during molding, but the applicant discovered that the center of the floor component's length is less susceptible to dimensional errors. Based on this discovery, the present invention allows the engagement portions to engage with the positioning portions of adjacent floor components, and by positioning the engagement portions in the center of the edge portions in the length direction, accurate positioning can be achieved using the center, which has minimal dimensional error, as a reference point. Furthermore, the absorption abutment portion of at least one of the absorption portions on either side of the positioning portion in the length direction can absorb the dimensional errors while also absorbing thermal expansion in the adjacent direction, thereby realizing a floor component that is easy to install and that does not bulge due to thermal expansion.

[0012] The present invention may be such that the multiple edge portions are provided with the positioning portion and the absorbing portion, and the engaging portion of the positioning portion in one edge portion is configured to be engageable with the engaging portion of the positioning portion in the remaining edge portion to position it in the length direction, and the absorbing abutment portion of the absorbing portion in one edge portion is configured to abut against the remaining edge portion in the adjacent direction and bend.

[0013] With the above configuration, even if floor components of the same shape are placed adjacent to each other with either edge facing each other, the positioning section allows for accurate positioning, and the absorption section can absorb dimensional errors and thermal expansion, making it easy to install the floor components.

[0014] The present invention can also adopt a configuration in which the at least one edge portion has a through-hole for inserting wiring in the vertical direction relative to the panel portion, and the through-hole has a hole recessed in the at least one edge portion toward the inside of the panel portion in the adjacent direction, and a wall portion arranged within the hole and removable from the hole.

[0015] According to the above configuration, it is possible to select a state in which the wall portion is attached to the hole portion or a state in which it is detached, so that the size of the hole portion of the insertion portion can be selected according to the number and thickness of the wiring.

[0016] In the present invention, a configuration can be adopted in which the insertion portion is disposed so as to face, in the adjoining direction, an insertion portion provided on at least one edge portion of another adjacent floor component.

[0017] According to the above configuration, in each of a pair of opposing insertion portions, it is possible to select a state in which the wall portion is attached to the hole portion or a state in which it is detached, so it is possible to select various sizes of the hole portion for inserting the wiring. [Effects of the Invention]

[0018] The floor component according to the present invention eliminates the swelling caused by thermal expansion and allows for easy installation. [Brief explanation of the drawings]

[0019] [Figure 1] 1 is a front view of a floor component according to an embodiment of the present invention; [Figure 2] FIG. [Figure 3] FIG. [Figure 4] FIG. [Figure 5] FIG. [Figure 6] FIG. 2 is an enlarged front view of the positioning portion and the insertion portion. [Figure 7] FIG. DETAILED DESCRIPTION OF THE INVENTION

[0020] An embodiment of a floor component and a floor support structure according to the present invention will be described below with reference to Figures 1 to 7. As shown in Figures 1 to 5, the floor according to this embodiment is made up of a plurality of floor components (hereinafter simply referred to as "components") 1.

[0021] Although only one component 1 is shown in Figure 1, in reality, a floor is constructed by combining multiple components 1 arranged side by side on a structural floor X as shown in Figure 3. Each component 1 has the same shape. For example, a tile-shaped carpet Y is laid on the floor.

[0022] The component 1 is made of synthetic resin such as polypropylene (PP), polyvinyl chloride (PVC), polyethylene terephthalate (PET), polycarbonate (PC), etc. As shown in Figures 1 to 3, the component 1 includes a panel portion 2 and a plurality of support portions 3 that support the panel portion 2.

[0023] The panel portion 2 will now be described. The panel portion 2 includes a plate-like portion 4 formed in a polygonal shape when viewed from the front. In this embodiment, the panel portion 2 is substantially square. As shown in FIGS. 1 and 2, the panel portion 2 includes four edge portions 2A, 2B, 2C, and 2D. The plate-like portion 4 includes an upper wall 4A and a lower wall 4B facing the upper wall 4A below. Vertical walls 4C are formed on the sides of the plate-like portion 4, and therefore the vertical walls 4C are formed on the four sides of the plate-like portion 4, and each vertical wall 4C has a predetermined length in the up-down direction.

[0024] As shown in Figure 2, ribs 5 that are integrally formed with the bottom wall 4B and extend in the vertical direction are formed on the inner side of each vertical wall 4C. The ribs 5 include vertical and horizontal ribs 6 that are arranged on the sides and center of the bottom wall 4B, and inclined ribs 7 that are arranged between the vertical and horizontal ribs 6. The vertical length of the vertical and horizontal ribs 6 is equal to the vertical length of the vertical wall 4C.

[0025] Furthermore, hollow support columns 3 are arranged at the intersections of the vertical and horizontal ribs 6, and in this embodiment, nine support columns 3 are formed. In this embodiment, the vertical and horizontal ribs 6 are connecting portions of the support columns 3, and the inclined ribs 7 are reinforcing portions of the plate-like portion 4. In this embodiment, the support columns 3 are located below the edge portions 2A, 2B, 2C, and 2D, and more specifically, are arranged at one end and the other end in the length direction of each edge portion 2A, 2B, 2C, and 2D, and further at the center in the length direction.

[0026] On the outer side of each vertical wall 4C, opposing surfaces 8 of the panel portions 2 of adjacent components 1 (having the same shape) are arranged. These opposing surfaces 8 are vertical surfaces that are discontinuously spaced apart in the longitudinal direction (see FIGS. 1, 6, and 7), and are located at positions spaced apart horizontally from the vertical wall 4C. In this way, the four edge portions 2A, 2B, 2C, and 2D have vertical walls 4C and opposing surfaces 8.

[0027] As shown in Figures 1, 2, and 4, the panel portion 2 of the component 1 has multiple edge portions 2A, 2B, 2C, and 2D, which form the sides of a substantially square, as described above. The edge portions 2A, 2B, 2C, and 2D each have a positioning portion 10, an absorption portion 11, and an insertion portion 12. The positioning portion 10 faces the edge portions 2A, 2B, 2C, and 2D and determines the longitudinal position of the edge portions 2A, 2B, 2C, and 2D relative to the adjacent floor component 1. The positioning portion 10 is disposed in the longitudinal center of the edge portions 2A, 2B, 2C, and 2D. The positioning portion 10 has engaging portions (a convex engaging portion 13 and a concave engaging portion 14, described below) that engage longitudinally with the positioning portion 10 of the edge portions 2A, 2B, 2C, and 2D of the adjacent floor component 1.

[0028] The absorbing section 11 absorbs thermal expansion of the floor constituent material 1 in an adjacent direction perpendicular to the longitudinal direction within the planar direction of the upper surface of the panel section 2. The absorbing section 11 also includes an absorbing contact section 19 configured to contact edge sections 2A, 2B, 2C, and 2D of other adjacent floor constituent materials 1 in the adjacent direction and elastically deform. The absorbing section 11 is disposed on at least one of the one and other longitudinal sides of the positioning section 10, and in this embodiment, is provided on both the one and other longitudinal sides.

[0029] The insertion portion 12 is configured so that the wiring 31 is inserted in the vertical direction relative to the panel portion 2 through the edge portions 2A, 2B, 2C, and 2D.

[0030] 1 and 2, the positioning portion 10 is disposed at the center in the longitudinal direction of the edge portions 2A, 2B, 2C, and 2D. The positioning portion 10 also includes a convex engaging portion 13 and a concave engaging portion 14.

[0031] The convex engaging portion 13 and the concave engaging portion 14 will now be described in detail. The convex engaging portion 13 is arranged so as to bulge outward relative to the opposing surface 8. The convex engaging portion 13 is formed on one side of the longitudinal and lateral center lines P1 and P2 of the plate-like portion 4 at the edge portions 2A, 2B, 2C, and 2D, and has a base formed on the opposing surface 8 and a generally truncated pyramid shape with a tip 15 (see FIG. 6) as a vertex. Both longitudinal ends of the convex engaging portion 13 serve as abutment surfaces 17, 17 that can abut against positioning pieces 16, 16 of adjacent components 1, which will be described later. In this embodiment, the two inclined surfaces of the truncated pyramid serve as the abutment surfaces 17, 17. The truncated pyramid shape of the convex engaging portion 13 is discontinuous in the plane direction of the opposing surface 8.

[0032] The concave engaging portion 14 is to be mated with the convex engaging portion 13 of the adjacent component 1, and is arranged side by side in the length direction relative to the convex engaging portion 13. Specifically, the concave engaging portion 14 is formed parallel to the opposing surface 8 in the length direction of the convex engaging portion 13. In this case, "parallel" means that the concave engaging portion 14 is arranged symmetrically with respect to the center lines P1 and P2.

[0033] The concave engagement portion 14 includes a recess 14a recessed inward in the adjacent direction at the edge portions 2A, 2B, 2C, and 2D, and the positioning pieces 16, 16 extending along the length direction from the outer end of the recess 14a in the adjacent direction. The recess 14a is formed so as to be recessed from the opposing surface 8 toward the inside of the plate-like portion 4. The positioning pieces 16, 16 are provided on both opposing surfaces 8 that face each other in the longitudinal direction of the recess 14a, and one positioning piece 16 extends in the length direction toward the other positioning piece 16, with their tip surfaces 18, 18 facing each other with a predetermined gap between them.

[0034] The positioning pieces 16, 16 are linear in the longitudinal direction when viewed from the front, are spaced a predetermined distance δ1 from one another in the longitudinal direction, and can bend in the adjacent direction around their bases connected to the opposing surfaces 8. That is, the positioning pieces 16, 16 are configured to be elastically deformable in the adjacent direction. When the positioning pieces 16, 16 are mated with the convex engaging portion 13 of the adjacent component 1, the tip surfaces 18, 18 of the positioning pieces 16, 16 abut against the abutment surfaces 17, 17 of the convex engaging portion 13. The tip surfaces 18, 18 are formed to be inclined in a direction that widens in the longitudinal direction outward in the adjacent direction.

[0035] 1 and 2, the convex engaging portion 13 and the concave engaging portion 14 are formed on each edge portion 2A, 2B, 2C, and 2D, and on opposing edge portions 2A, 2B, 2C, and 2D, the convex engaging portion 13 and the concave engaging portion 14 are arranged at opposite positions in the longitudinal direction. The convex engaging portion 13 and the concave engaging portion 14 of each edge portion 2A, 2B, 2C, and 2D are arranged so as to be rotationally symmetrical about the point where the center lines P1 and P2 intersect.

[0036] 1, 2, and 4, the absorbent section 11 is disposed on both one and the other longitudinal sides of the positioning section 10 in the edge sections 2A, 2B, 2C, and 2D. Specifically, the absorbent section 11 is disposed on both one and the other longitudinal ends of the edge sections 2A, 2B, 2C, and 2D. The absorbent section 11 includes an absorbent abutment section 19 and a pressing section 20 configured to abut against one edge section 2A, 2B, 2C, and 2D of an adjacent component 1 in the adjacent direction and bend.

[0037] The absorbing contact portions 19 will now be described. The absorbing contact portions 19 are configured to be combined with the pressing portions 20 of the adjacent components 1. The absorbing contact portions 19 are formed on both end sides of the longitudinal and lateral center lines P1, P2 of the plate-like portion 4. The absorbing contact portions 19 are recessed from the opposing surface 8 toward the inside of the plate-like portion 4, and extend in the length direction of the edge portions 2A, 2B, 2C, and 2D.

[0038] 7, the absorbing contact portion 19 has a bottom surface 21 that is continuous with the plate-like portion 4, side surfaces 22, 22 formed in the longitudinal direction, and a rear surface 23 that is continuous with the side surfaces 22, 22. The bottom surface 21 is formed on the plate-like portion 4, and is formed on the inner side of the plate-like portion 4 with respect to the opposing surface 8.

[0039] An elastic abutment portion 24 is erected on the bottom surface 21 on the side of the adjacent component 1. The elastic abutment portion 24 is configured to be elastically deformable in the adjacent direction, and in this embodiment is formed as a flexible plate that can bend in the adjacent direction, and is formed in the center of the length of the bottom surface 21. A predetermined misalignment accommodation gap δ2 is formed between both longitudinal ends of the elastic abutment portion 24 and the side surfaces 22, 22. In addition, a predetermined flexible gap δ3 is formed between the back surface of the elastic abutment portion 24 and the rear surface 23.

[0040] When viewed from the front, an insertion gap δ4 is formed between the outer ends of the side surfaces 22, 22 in the adjacent direction and the outer end of the bottom surface 21 in the adjacent direction, into which the tip 25 of the pressing portion 20 of the adjacent component 1 can be inserted, and the front surface of the elastic abutment portion 24 is made into a pressing surface 26 that can be pressed by the pressing portion 20 of the adjacent component 1.

[0041] The pressing portion 20 will now be described. The pressing portion 20 is formed on the opposing surface 8, and is formed parallel to the absorbing contact portion 19 in the length direction. The pressing portion 20 protrudes outward from the opposing surface 8 in the adjacent direction, and is formed in a roughly truncated pyramid shape with the tip portion 25 as its apex. The truncated pyramid shape of the pressing portion 20 is discontinuous in the planar direction of the opposing surface 8.

[0042] As described above, the absorbing and contacting portions 19 and the pressing portions 20 are formed in parallel. In addition, the absorbing and contacting portions 19 and the pressing portions 20 are formed on each of the edge portions 2A, 2B, 2C, and 2D. As shown in FIGS. 1 and 2, the absorbing and contacting portions 19 and the pressing portions 20 are arranged at opposite positions in the length direction on the opposing edge portions 2A, 2B, 2C, and 2D. The absorbing and contacting portions 19 and the pressing portions 20 on each of the edge portions 2A, 2B, 2C, and 2D are arranged so as to be rotationally symmetrical about the point where the center lines P1 and P2 intersect.

[0043] The insertion portion 12 will now be described. As shown in Figs. 1 and 2, the insertion portion 12 is disposed between the positioning portion 10 and the absorbing portion 11. In this embodiment, there are two spaces between the positioning portion 10 and the absorbing portion 11, and therefore an insertion portion 12 is disposed in each of them. The positions of the insertion portions 12 in each of the edge portions 2A, 2B, 2C, and 2D are arranged so as to be rotationally symmetrical about the point where the center lines P1 and P2 intersect.

[0044] 6, the insertion portion 12 has a hole 27 recessed toward the inside (toward the adjacent direction) of the plate-like portion 4 on the opposing surface 8 of the edge portions 2A, 2B, 2C, and 2D. The hole 27 has side surfaces 28, 28 spaced apart in the longitudinal direction and a back surface 29 connecting the side surfaces 28, 28.

[0045] The insertion portion 12 is disposed within the hole 27 and has removable wall portions 30 on the side surfaces 28, 28 of the hole 27. The wall portions 30 are formed in a plate shape and are disposed midway between the side surfaces 28, 28 in the direction in which they adjoin. In other words, since the wall portions 30 are disposed midway between the side surfaces 28, 28, a gap is formed between the back surface of the wall portion 30 and the inner surface 29, and a gap is also formed between the front surface of the wall portion 30 and the opposing surface 8.

[0046] In this embodiment, as described above, the floor is composed of adjacent components 1. That is, as shown in Fig. 3, the component 1 is placed adjacent to the structural floor X with the support portion 3 facing downward and the panel portion 2 facing upward. Positioning portions 10, absorbing portions 11, and insertion portions 12 corresponding to the adjacent panel portion 2 are arranged on the edge portions 2A, 2B, 2C, and 2D of each panel portion 2. That is, the wall portion 30 is configured to shield a portion of the hole portion 27 when viewed from the front.

[0047] Here, for example, nine components 1 will be described as shown in Fig. 5. Specifically, the components 1 (hereinafter referred to as component 100) placed at the center of the floor will be described, as will the components 1 (hereinafter referred to as components 101, 102, 103, and 104) located above, below, left, and right of the page. That is, the case where components 101, 102, 103, and 104 are placed adjacent to component 100 will be described.

[0048] When the component 100 and the component 101 on the upper side of the drawing are placed adjacent to each other, the convex engaging portion 13 of the positioning portion 10 is engaged (inserted) into the concave engaging portion 14, as shown in Figure 6. That is, the tip ends 15 of the convex engaging portions 13 of the components 100, 101 are inserted into the positioning pieces 16, 16 of the concave engaging portion 14 by a predetermined distance δ1. Then, the abutment surfaces 17, 17 of the convex engaging portion 13 abut against the tip faces 18, 18 of the positioning pieces 16, 16. Because the abutment surfaces 17, 17 of the convex engaging portions 13 abut against the tip faces 18, 18 of the positioning pieces 16, 16, the components 100, 101 are positioned in the length direction and in the adjoining direction perpendicular to the length direction.

[0049] Furthermore, each component 100, 101 has a positioning portion 10 that includes a plurality of engaging portions, namely, a convex engaging portion 13 and a concave engaging portion 14, thereby ensuring reliable positioning of the components 100, 101 in the longitudinal direction and the adjacent direction. In particular, since the components have a plurality of engaging portions that engage not only in the longitudinal direction but also in the adjacent direction, the edges 2A, 2B, 2C, and 2D that face each other in the adjacent direction can be aligned parallel to each other in the longitudinal direction. Furthermore, when the contact surfaces 17, 17 of the convex engaging portions 13 contact the tip surfaces 18, 18 of the positioning pieces 16, 16, a predetermined gap is formed between the opposing surfaces 8, 8 of the components 100, 101.

[0050] Positioning portions 10 and absorption portions 11 are provided on the edge portions 2A, 2B, 2C, and 2D of the panel portion 2 so as to be rotationally symmetrical, and the positioning portions 10 and absorption portions 11 are arranged to correspond to adjacent panel portions 2, so that any of components 101, 102, 103, and 104 can be adjacent to one component 100, and the alignment of the panel portions 2 of components 100, 101, 102, 103, and 104 in the surface direction of the upper surface of the panel portion 2 is determined.

[0051] On the other hand, when the contact surfaces 17, 17 of the convex engagement portion 13 contact the tip surfaces 18, 18 of the positioning pieces 16, 16, with respect to the absorbing contact portions 19 and the pressing portions 20 of the components 100, 101, 102, 103, 104, the tip portions 25 of the pressing portions 20 may contact the pressing surfaces 26 of the absorbing contact portions 19, or may be slightly spaced apart. Note that Fig. 7 shows the case where the tip portions 25 of the pressing portions 20 contact the pressing surfaces 26 of the absorbing contact portions 19.

[0052] The applicant discovered that the longitudinal center of the component 1 is less susceptible to dimensional errors. That is, in the component 1, which is a molded material made of synthetic resin, the dimensional errors of the edge portions 2A, 2B, 2C, and 2D tend to be smaller toward the longitudinal center and larger toward the ends. Based on this discovery, the concave engaging portion 14 and the convex engaging portion 13 of the positioning portion 10 are engaged with the convex engaging portion 13 and the concave engaging portion 14 of the positioning portion 10 of the adjacent component 1, respectively, and the positioning portion 10 is disposed in the longitudinal center of the edge portions 2A, 2B, 2C, and 2D, thereby enabling accurate positioning based on the central portion, which is less susceptible to dimensional errors (manufacturing errors occurring in the longitudinal direction around the center lines P1 and P2).

[0053] In this way, each edge portion 2A, 2B, 2C, 2D of each component 1 has a positioning portion 10 and an absorbing portion 11, and the convex engaging portion 13 and the concave engaging portion 14 of the positioning portion 10 in one edge portion 2A, 2B, 2C, 2D are configured to be engageable with the convex engaging portion 13 and the concave engaging portion 14 of the positioning portion 10 in the remaining edge portions 2A, 2B, 2C, 2D so as to be positioned in the longitudinal direction, and the absorbing abutment portion 19 of the absorbing portion 11 in one edge portion 2A, 2B, 2C, 2D is configured to abut against the remaining edge portions 2A, 2B, 2C, 2D in the adjacent direction and bend.

[0054] Therefore, particularly when any of the edge portions 2A, 2B, 2C, and 2D are adjacent to each other, accurate positioning can be achieved by the positioning unit 10. Therefore, when the components 101, 102, 103, and 104 are arranged adjacent to each other with the component 100 at the center, the panel portions 2 of the components 100, 101, 102, 103, and 104 can be arranged without requiring skilled techniques and with the edge portions 2A, 2B, 2C, and 2D roughly aligned, making the construction of the component 1 easy.

[0055] A case where the components 100, 101, 102, 103, and 104 thermally expand as a whole will be described. When the components 100, 101, 102, 103, and 104 thermally expand as a whole, the panel portion 2 expands mainly in the planar direction. As a result, the opposing edge portions 2A, 2B, 2C, and 2D of adjacent components 100, 101, 102, 103, and 104 approach each other in the adjoining direction. That is, the absorbing abutment portion 19 of the absorbing portion 11 of one component 100 approaches the pressing portion 20 of the absorbing portion 11 of the other component 101. As a result, the tip portion 25 of the pressing portion 20 abuts against the pressing surface 26 of the elastic abutment portion 24 (flexible piece) serving as the absorbing abutment portion 19, pressing it in the adjoining direction. The elastic contact portion 24 is flexible and has a flexible gap δ3 formed on the rear surface side, so that when pressed by the pressing portion 20, it bends as an elastic deformation toward the rear surface side, that is, inward in the adjacent direction.

[0056] The elastic contact portions 24 are erected on the bottom surface 21 and are flexible, so that the bending of the elastic contact portions 24 absorbs the thermal expansion of the panel portions 2 in the adjacent direction. In this way, the absorbing contact portions 19 of the absorbing portion 11 can absorb the thermal expansion in the adjacent direction. This makes it possible to eliminate the bulging of the panel portions 2 due to thermal expansion, while also providing a component 1 that is easy to install.

[0057] The absorbing portions 11 are arranged on both one and the other longitudinal sides of the positioning portion 10 in the edge portions 2A, 2B, 2C, and 2D. This is to absorb dimensional errors in the longitudinal direction, which are most affected by dimensional errors. Specifically, the dimensional errors in the longitudinal direction are absorbed by the longitudinal misalignment allowance portions in the absorbing portions 11, or the misalignment allowances in this embodiment.

[0058] Furthermore, the misalignment-tolerant portion absorbs thermal expansion in the length direction of the edge portions 2A, 2B, 2C, and 2D. At this time, the pressing portion 20 may or may not deflect the elastic contact portion 24.

[0059] As described above, for the positioning part 10, the convex engaging part 13 is inserted into the concave engaging part 14. The convex engaging part 13 is inserted between the positioning pieces 16, 16 of the concave engaging part 14, and the abutment surfaces 17, 17 of the convex engaging part 13 abut against the tip surfaces of the positioning pieces 16, 16.

[0060] Therefore, the positioning portion 10 not only aligns the panel portions 2 of adjacent components 100, 101, 102, 103, and 104, but also, when the panel portion 2 thermally expands in the planar direction, the positioning pieces 16, 16 have elasticity in the adjacent direction, and the convex engaging portion 13 presses in the adjacent direction due to thermal expansion, causing the positioning pieces 16, 16 to bend inward in the adjacent direction based on the opposing surface 8, thereby absorbing the thermal expansion in the adjacent direction.

[0061] In short, the components 100, 101, 102, 103, and 104 are configured so that when the panel portion 2 thermally expands, the thermal expansion is eliminated only at the edge portions 2A, 2B, 2C, and 2D of the adjacent components 100, 101, 102, 103, and 104.

[0062] At least one insertion portion 12 is formed in each of the edge portions 2A, 2B, 2C, and 2D, and the insertion portion 12 is disposed between the positioning portion 10 and the absorbing portion 11. A wall portion 30 is also formed in the insertion portion 12. As described above, by aligning adjacent panel portions 2 with the positioning portion 10, dimensional errors between the panel portions 2 are reduced, and therefore, opposing hole portions 27 in the adjacent direction are substantially aligned in the adjacent direction. It is possible to select a state in which the wall portion 30 is attached to the hole portion 27 or a state in which it is detached. Therefore, the size of the hole portion 27 of the insertion portion 12 can be selected depending on the number and thickness of the wiring 31 to be disposed on the support portion 3.

[0063] In a pair of opposing insertion portions 12 in the adjacent direction, the wall portions 30 can be made removable from the hole portions 27, for example, by using a predetermined tool, so that it is possible to select a state in which the wall portions 30 are attached or removed. Specifically, when the wall portions 30 are attached to a pair of opposing insertion portions 12 in the adjacent direction, the wiring 31 is passed between the wall portions 30. Furthermore, by removing the wall portion 30 from one insertion portion 12 and attaching the wall portion 30 to the other insertion portion 12, it is possible to pass the wiring 31 without the wall portion 30.

[0064] By removing both wall portions 30, only adjacent holes 27, 27 remain, through which the wiring 31 can be inserted. In this way, it is possible to select various sizes for the holes 27 for inserting the wiring 31. Note that, although a plurality of components 1 are arranged side by side to lay a plurality of tile-shaped carpets Y, the walls 30 can partially block the holes 27, preventing pointed shoes from piercing the carpet Y.

[0065] The present invention is not limited to the above embodiment. In the above embodiment, the positioning portion 10 is configured to include a convex engaging portion 13 and a concave engaging portion 14. However, the present invention is not limited to this configuration, and a configuration including only the convex engaging portion 13 is also possible. Specifically, one convex engaging portion 13 is provided at the longitudinal center of each of the edge portions 2A, 2B, 2C, and 2D, protruding outward from the opposing surface 8 in the adjacent direction. The convex engaging portion 13 is configured to engage with the convex engaging portion 13 of another adjacent component 1 in the longitudinal direction (center line P1 or center line P2).

[0066] Alternatively, the positioning portion 10 can be configured to have a plurality of convex engaging portions 13. Specifically, two convex engaging portions 13 are provided at the longitudinal center of the edge portions 2A, 2B, 2C, and 2D, lined up at a predetermined interval in the longitudinal direction. The two convex engaging portions 13 are engaged with the two convex engaging portions 13 in the longitudinal direction (one convex engaging portion 13 is engaged with the center line P1 or P2) so that one of the two convex engaging portions 13 in the adjacent component 1 is positioned between the two convex engaging portions 13.

[0067] In the above embodiment, a positioning portion 10 including a convex engaging portion 13 and a concave engaging portion 14 is provided on each of the edge portions 2A, 2B, 2C, and 2D. However, this is not limiting, and for example, the edge portions 2A and 2B may be configured to include a positioning portion 10 including a convex engaging portion 13, and the edge portions 2C and 2D may be configured to include a positioning portion 10 including a concave engaging portion 14. Alternatively, all of the edge portions 2A, 2B, 2C, and 2D may be configured to include a positioning portion 10 including a convex engaging portion 13.

[0068] In the above embodiment, the absorbing portions 11 are arranged on both one and the other longitudinal sides of the positioning portion 10 in order to absorb dimensional errors in the longitudinal direction, which is the most affected by the dimensional errors. However, they may also be provided on either one or the other of the edge portions 2A, 2B, 2C, and 2D.

[0069] In the above embodiment, the absorbing section 11 is configured to include the pressing section 20 and the absorbing contact section 19. However, it is also possible to use the opposing surface 8 instead of the pressing section 20, and to configure the absorbing contact section 19 to protrude outward in the adjacent direction from the opposing surface 8 in the adjacent direction, specifically, to configure the elastic contact section 24 to be positioned outward in the adjacent direction than the opposing surface 8. In this case as well, the misalignment accommodating gap δ2 is formed on both sides of the elastic contact section 24 in the length direction.

[0070] In the above embodiment, the wall portion 30 of the insertion portion 12 is configured to be disposed midway along the side surface of the hole portions 27, 27. However, this is not limiting, and the wall portion 30 may be configured to protrude from the inner surface 29 of the hole portions 27, 27 in the adjacent direction.

[0071] In the above embodiment, two insertion portions 12 are provided in each edge portion 2A, 2B, 2C, 2D, but it is also possible to provide only one or three or more insertion portions 12. Also, in the above embodiment, the insertion portion 12 is disposed between the positioning portion 10 and the absorbent portion 11, but this is not limiting, and it is also possible to dispose the insertion portion 12 closer to the end portion in the longitudinal direction than the absorbent portion 11.

[0072] The insertion portions 12 are arranged to face the insertion portions 12 of other adjacent components 1 in the adjoining direction, but this is not limitative, and they may also be arranged offset in the length direction.

[0073] In the component 1 of the above embodiment, positioning portions, absorption portions, and insertion portions are arranged on each of the rectangular edge portions 2A, 2B, 2C, and 2D, but it is also possible to form positioning portions, absorption portions, and insertion portions on at least one edge portion. In this case, by arranging the edge portions on which the positioning portions, absorption portions, and insertion portions are formed in the adjacent direction, it is possible to position the components 1 relative to each other, absorb thermal expansion, and insert wiring.

[0074] In the component 1 of the above embodiment, the panel portion 2 is configured to have a rectangular shape. However, the panel portion 2 may also be configured to have a triangular, pentagonal, or hexagonal shape, or in other words, any polygonal shape is acceptable. [Explanation of symbols]

[0075] 1...constituent material, 2...panel portion, 2A, 2B, 2C, 2D...edge portion, 4...plate-shaped portion, 4C...vertical wall, 5...rib, 8,8...opposing surface, 10...positioning portion, 11...absorbing portion, 12...insertion portion, 13...convex engaging portion, 14...concave engaging portion, 15...tip portion, 16,16...positioning pieces, 17,17...contact surface, 18,18...tip surface, 19...absorbing contact Contact portion, 20...pressure portion, 21...bottom surface, 22, 22...side surface, 23...rear surface, 24...elastic contact portion, 25...tip portion, 26...pressure surface, 27, 27...hole portion, 28, 28...side surface, 29...rear surface, 30...wall portion, 31...wiring, 100, 101, 102, 103, 104...component material, P1, P2...center line, X...structural floor, Y...carpet, δ1...predetermined interval, δ2...accommodation gap, δ3...flexible gap, δ4...insertion gap

Claims

1. A floor component made of synthetic resin that is arranged adjacent to one another to form a floor. The floor is provided with a polygonal panel portion that forms a floor surface on its upper surface, and a support portion that supports the panel portion. The panel portion has a plurality of edge portions that form the respective sides of a polygonal shape, At least one edge portion has a positioning portion for determining a position of the at least one edge portion in a longitudinal direction relative to another floor component adjacent to and facing the at least one edge portion; The positioning portion includes an engaging portion that engages with a positioning portion on at least one edge portion of another adjacent floor component in the length direction, The at least one edge portion has an absorption portion that absorbs thermal expansion of the floor component in an adjacent direction perpendicular to the length direction among the planar directions of the upper surface, The absorbing portion includes an absorbing abutment portion configured to abut in an adjacent direction against at least one edge portion of another adjacent floor component and to be elastically deformed, the positioning portion is disposed at a center portion in the length direction of the at least one edge portion, the absorbing portion is disposed on at least one of one side and the other side in the length direction with respect to the positioning portion, the at least one edge portion includes an insertion portion through which a wiring is inserted in the vertical direction relative to the panel portion, The insertion portion is characterized by having a hole portion recessed toward the inside of the panel portion in the adjacent direction in at least one edge portion, and a wall portion arranged within the hole portion and removable from the hole portion.

2. a plurality of the edge portions each including the positioning portion and the absorbing portion; The engaging portion of the positioning portion on one edge portion is configured to be engageable with the engaging portion of the positioning portion on the remaining edge portion so as to be positioned in the length direction, 2. The floor construction material according to claim 1, wherein the absorbent abutment portion of the absorbent portion at one edge portion is configured to abut against the remaining edge portion in the adjacent direction and bend.

3. 3. The floor construction material according to claim 1, wherein the insertion portion is disposed so as to face an insertion portion provided on at least one edge portion of another adjacent floor construction material in the adjoining direction.

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