Floor panel support legs

Abstract

To provide a floor panel support leg that ensures sufficient adhesive strength with an installation surface even when the base plate of the floor panel support leg is made small. [Solution] The device comprises a square-shaped base plate (11), a support pillar (12) protruding upward from the center of the base plate (11), a central protrusion (15A) around the support pillar (12) that recesses the bottom surface of the base plate (11) while protruding the top surface, radial protrusions (16) that extend from the central protrusion (15A) toward the edge of the base plate (11) and recesses the bottom surface of the base plate (11) while protruding the top surface, and downward protrusions (13) that are evenly spaced at multiple locations on the bottom surface of the base plate (11) at equal distances from the support pillar (12) and centered on the support pillar (12).

Description

[Technical Field]

[0001] The present disclosure relates to support legs that support floor panels when constructing a raised floor. [Background technology]

[0002] For example, a technology disclosed in Patent Document 1 is used for supporting legs that support floor panels. A technology disclosed in Patent Document 2 is used for fixing such supporting legs to a concrete slab with adhesive. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Utility Model Registration No. 3180796 [Patent Document 2] Japanese Patent Application Laid-Open No. 2004-116056 Summary of the Invention [Problem to be solved by the invention]

[0004] When downsizing the base plate of a floor panel support leg, the adhesive surface area to the floor surface is reduced, which reduces adhesive strength and can result in insufficient horizontal load resistance. Also, if the bottom surface of the base plate is smooth, it may not be possible to apply adhesive with an even thickness, making it easier for interface peeling to occur in areas where the adhesive is thin.

[0005] An object of the present disclosure is to provide a floor panel support leg that can ensure sufficient adhesive strength with the installation surface even when the base plate is made smaller. [Means for solving the problem]

[0006] A square base plate, a support pillar projecting upward from the center of the base plate; a central protrusion around the support pillar, the central protrusion having a recessed bottom surface and a protruding top surface of the base plate; Radial protrusions extending from the central protrusion toward the edge of the base plate, the bottom surface of the base plate being recessed and the top surface being protruding; a plurality of downward protrusions equally spaced about the support pillar on the bottom surface of the base plate at positions equidistant from the support pillar; Equipped with.

[0007] The radial ridges on the floor panel support legs of this embodiment prevent distortion of the base plate due to horizontal loads on the support posts. Furthermore, the downward protrusions allow adhesive to be applied between the installation surface and the bottom surface of the base plate to the height of the downward protrusions, ensuring sufficient adhesive strength between the installation surface and the base plate.

[0008] The floor panel support leg of the second aspect of the present disclosure has the same configuration as the first aspect, but the downward protrusion protrudes downward from the bottom surface of the base plate to a height equal to or less than the thickness of the base plate.

[0009] By making the height of the downward protrusion equal to or less than the thickness of the base plate, it becomes possible to apply an appropriate amount of adhesive to the bottom surface of the base plate.

[0010] The floor panel support leg of the third aspect of the present disclosure has the same configuration as the first or second aspect, but the radial ridges include diagonal ridges extending toward the four corners of the base plate and opposite side ridges extending toward the midpoints of the four sides of the base plate.

[0011] The radial ridges include diagonal ridges and opposite side ridges extending in all four directions, so that distortion of the base plate due to horizontal loads acting on the support columns can be evenly reduced.

[0012] In the floor panel support leg of the third embodiment, the downward protrusions are evenly distributed at multiple locations on the bottom surface of the base plate to ensure uniform adhesion to the adhesive surface. For example, the downward protrusions may be positioned between the tips of the opposite-side ridges and the midpoints of the four sides of the base plate, or between the tips of the diagonal ridges near the edges of the base plate, or between the four corners of the base plate and the tips of the diagonal ridges. [Effects of the Invention]

[0013] Since the floor panel support leg of the embodiment of the present disclosure is configured as described above, it is possible to ensure sufficient adhesive strength with the installation surface even when the base plate is made smaller. [Brief explanation of the drawings]

[0014] [Figure 1] FIG. 2 is a top perspective view of a floor panel support leg of the first embodiment. [Figure 2] FIG. 2 is a bottom perspective view of the floor panel support leg of the first embodiment. [Figure 3] FIG. 2 is a bottom view of the floor panel support leg of the first embodiment. [Figure 4] IV-IV cross section of Figure 3. [Figure 5] VV cross section of Figure 3. [Figure 6] FIG. 2 is a partial cross-sectional view showing the floor panel support leg of the first embodiment adhered to the installation surface. [Figure 7] FIG. 7 is a partial cross-sectional view showing the state of FIG. 6 from a different angle. [Figure 8] FIG. 4 is a top perspective view showing the installation status of the floor panel. [Figure 9] FIG. 10 is a top perspective view of a floor panel support leg of a second embodiment. [Figure 10] FIG. 10 is a bottom perspective view of a floor panel support leg of a second embodiment. [Figure 11] FIG. 11 is a top perspective view of a floor panel support leg of a third embodiment. [Figure 12]FIG. 11 is a bottom perspective view of a floor panel support leg according to a third embodiment. [Figure 13] FIG. 11 is a bottom view of a floor panel support leg of the third embodiment. [Figure 14] XIV-XIV cross section of Figure 13. DETAILED DESCRIPTION OF THE INVENTION

[0015] An embodiment of the floor panel support leg of the present disclosure will be described with reference to the drawings. Note that the reference numerals commonly used in the drawings indicate the same parts or components even if they are not mentioned in the description of each drawing. Furthermore, because the drawings are schematic, the dimensions and proportions of each part between the drawings are not necessarily the same. Furthermore, the materials of each component mentioned below are merely examples and are not intended to be limiting.

[0016] (1) First embodiment Fig. 1 is an upper perspective view of a floor panel support leg 10 of the first embodiment. Fig. 2 is a lower perspective view of the floor panel support leg 10 of the first embodiment. Fig. 3 is a bottom view of the floor panel support leg 10 of the first embodiment. Fig. 4 is a cross-sectional view taken along line IV-IV in Fig. 3, and Fig. 5 is a cross-sectional view taken along line VV in Fig. 3.

[0017] The floor panel support leg 10 of this embodiment includes a square base plate 11 and a support pillar 12 protruding upward from the center O of the base plate 11 (see FIG. 3). The base plate 11 is formed from a steel plate with a side length of 40 to 300 mm and a thickness of 1 to 20 mm. The support pillar 12 is made of metal and has a male thread on its upper outer periphery. The support pillar 12 is fixed to the center O of the base plate 11 by a weld 19 (see FIGS. 1, 4, and 5). In addition, downward protrusions 13 (see FIGS. 2 and 3) are formed on the bottom surface of the base plate 11 at positions inside the imaginary inscribed circle IC (see FIG. 3) of the base plate 11 and equidistant from the support pillar 12. The downward protrusions 13 are formed by half-blanking the base plate 11, and protrude downward by 0.1 to 5 mm, more preferably 0.3 to 3 mm, from the bottom surface of the base plate 11. That is, the height of the downward protrusion 13 protruding downward from the bottom surface of the base plate 11 is equal to or less than the thickness of the base plate 11 (see FIGS. 4 and 5). In addition, an upper recess 13A is formed on the upper surface of the base plate 11 that has been half-punched.

[0018] In this embodiment, the downward protrusion 13 is located on an imaginary bisector IB (see FIG. 3) connecting the midpoints of two opposing sides of the base plate 11. In this disclosure, the expression "a structure is located on a line" means that even a part of the structure overlaps the line. Conversely, the expression "a structure is not located on a line" means that even a part of the structure does not overlap the line.

[0019] In this embodiment, through holes 14 are provided near the four corners of the base plate 11. The through holes 14 are located on an imaginary diagonal line ID connecting two opposing corners of the base plate 11 and outside an imaginary inscribed circle IC (see FIG. 3) of the base plate 11. Note that the through holes 14 are not provided on or near an imaginary bisector IB connecting midpoints M (see FIG. 3) of two opposing sides of the base plate 11.

[0020] Around the support 12 on the base plate 11, a central recess 15A (see Figures 2 to 4) is formed by circularly recessing the bottom surface of the base plate 11, thereby forming a central protrusion 15 (see Figure 1) in which the corresponding part of the top surface of the base plate 11 protrudes in a circular shape.

[0021] In addition, radial recesses 16A (see Figures 2 and 3) are formed from the central recess 15A, including diagonal recesses 17A (see Figures 2, 3 and 5) formed by radially recessing the bottom surface of the base plate 11 so as to extend toward the four corners of the base plate 11, and opposite side recesses 18A (see Figures 2 to 4) formed by radially recessing the bottom surface of the base plate 11 so as to extend toward the midpoint M of the four sides of the base plate 11 (see Figure 3).

[0022] On the top surface of the base plate 11, radial ridges 16 (see FIG. 1) extend from the central ridge 15 toward the edge of the base plate 11 to correspond to the above-mentioned radial recesses 16A. That is, the floor panel support leg 10 of this embodiment includes a square-shaped base plate 11, a support 12 that protrudes upward from the center of the base plate 11, a central ridge 15 that protrudes the top surface while recessing the bottom surface of the base plate 11 around the support 12, radial ridges 16 that extend from the central ridge 15 toward the edge of the base plate 11 and that protrude the top surface while recessing the bottom surface of the base plate 11, and downward protrusions 13 that are equally spaced at multiple locations on the bottom surface of the base plate 11, equidistant from the support 12 and centered around the support 12.

[0023] The radial ridges 16 include diagonal ridges 17 (see FIG. 1) that extend toward the four corners of the base plate 11, and opposite-side ridges 18 (see FIG. 1) that extend toward the midpoints M (see FIG. 3) of the four sides of the base plate 11. The tips of the diagonal ridges 17 extend just before reaching the through holes 14 (see FIG. 1), and the tips of the opposite-side ridges 18 extend just before reaching the downward protrusions 13 (see FIG. 2) on the bottom surface (see FIG. 1). In other words, the downward protrusions 13 are located between the tips of the opposite-side ridges 18 and the midpoints M of the four sides of the base plate 11.

[0024] A circular central hole 11B (see FIGS. 2 to 5) is formed at the center O (see FIG. 3) of the base plate 11. A support post holder 11A (see FIGS. 2 to 5) is formed around the central hole 11B by recessing the central protuberance 15 into an annular shape. Meanwhile, an insertion portion 12A (see FIGS. 3 to 5) with a reduced outer diameter is formed at the lower end of the support post 12. The outer diameter of this insertion portion 12A is approximately the same as the inner diameter of the central hole 11B. When the insertion portion 12A of the support post 12 is inserted into the central hole 11B, the step at the lower end of the support post 12 rests on the support post holder 11A. In this state, the periphery of the lower end of the support post 12 is welded to the central protuberance 15 on the top surface of the base plate 11 to form a weld 19 (see FIGS. 1, 4, and 5), thereby fixing the support post 12 to the base plate 11. Furthermore, the provision of the central ridge 15 and radial ridges 16 suppresses welding distortion when welding the support 12 to the base plate 11, thereby reducing warping of the base plate 11 and enabling the adhesive to be applied evenly to the bottom surface.

[0025] FIG. 6 is a partial cross-sectional view showing the state of floor panel support leg 10 of this embodiment adhered to installation surface 70, taken at an angle similar to FIG. 4, and FIG. 7 is a partial cross-sectional view showing this state at an angle similar to FIG. 5. When base plate 11, with adhesive applied to its bottom surface, is placed on installation surface 70 and pressed from above, downward protrusions 13 come into contact with installation surface 70 as shown in FIG. 6, ensuring a uniform adhesive layer 60 equal to the thickness of downward protrusions 13. At this time, excess adhesive overflows from the edges of base plate 11 and also overflows from through-holes 14 as shown in FIG. 7. This makes it possible to maintain a uniform adhesive layer 60 over the entire bottom surface of base plate 11, including the four corners, thereby preventing variations in the adhesive strength of base plate 11 to installation surface 70.

[0026] FIG. 8 is a top perspective view showing the installation of a floor panel 40 using the floor panel support leg 10 of this embodiment. As shown in FIGS. 6 and 7, after multiple floor panel support legs 10 are adhered to predetermined locations on the installation surface 70 and the adhesive has sufficiently hardened, a support member 20 is screwed to the top of the support column 12 of each floor panel support leg 10. Then, the four surrounding floor panels 40 are placed on this support member 20 with their corners aligned. From this state, fastening members 30 are attached from above the support member 20 to secure the floor panel 40. Then, a carpet 50 is laid on top of the floor panel 40, completing the construction of the double floor. Here, the radial ridges 16 provided on the floor panel support leg 10 of this embodiment suppress distortion of the base plate 11 due to the horizontal load applied to the support column 12, preventing the base plate 11 from peeling off from the installation surface 70.

[0027] (2) Second embodiment Fig. 9 is a top perspective view of the floor panel support leg 10 of the second embodiment. Fig. 10 is a bottom perspective view of the floor panel support leg 10 of the second embodiment.

[0028] The floor panel support leg 10 of this embodiment includes a square base plate 11 and a support pillar 12 that protrudes upward from the center O of the base plate 11 (see FIG. 3). The materials and shapes of the base plate 11 and the support pillar 12 are the same as those of the first embodiment. The support pillar 12 is fixed to the center O of the base plate 11 by a welded portion 19 (see FIG. 9). In addition, downward protrusions 13 (see FIG. 10) are formed on the bottom surface of the base plate 11 at positions equidistant from the support pillar 12 on the circumference of the imaginary inscribed circle IC (see FIG. 3) of the base plate 11, and are evenly spaced at multiple locations around the support pillar 12.

[0029] Through holes 14 are provided near the four corners of the base plate 11. The through holes 14 are the same as those in the first embodiment.

[0030] Furthermore, the floor panel support leg 10 of this embodiment includes, around the support column 12, a central protrusion 15 (see FIG. 9) that recesses the bottom surface of the base plate 11 as a central recess 15A (see FIG. 10) while protruding from the top surface, and radial protrusions 16 (see FIG. 9) that extend from the central protrusion 15 toward the edges of the base plate 11 and recesses the bottom surface of the base plate 11 as radial recesses 16A (see FIG. 10) while protruding from the top surface. The radial protrusions 16 include diagonal protrusions 17 that extend toward the four corners of the base plate 11 and opposite-side protrusions 18 that extend toward the midpoints M (see FIG. 3) of the four sides of the base plate 11. The bottom side of the diagonal protrusion 17 is recessed as a diagonal recess 17A, and the bottom side of the opposite-side protrusion 18 is recessed as an opposite-side recess 18A (see FIG. 10). The diagonal ridges 17 are the same as those in the first embodiment. The opposite side ridges 18 are the same as those in the first embodiment, except that they extend just before reaching the midpoints M of the four sides of the base plate 11.

[0031] That is, the floor panel support leg 10 of this embodiment comprises a square-shaped base plate 11, a support pillar 12 protruding upward from the center of the base plate 11, a central protrusion 15 around the support pillar 12, which recesses the bottom surface of the base plate 11 while protruding the top surface, radial protrusions 16 extending from the central protrusion 15 toward the edge of the base plate 11, which recesses the bottom surface of the base plate 11 while protruding the top surface, and downward protrusions 13 equally spaced at multiple locations around the support pillar 12 on the bottom surface of the base plate 11 at positions equidistant from the support pillar 12.

[0032] This embodiment differs from the first embodiment in that the downward protrusions 13 are not located on the imaginary bisector IB (see FIG. 3 ), but are located between the imaginary bisector IB connecting the midpoints M of two opposing sides of the base plate 11 and the imaginary diagonal line ID (see FIG. 3 ) connecting two opposing corners of the base plate 11, as shown in FIG. 10 . Specifically, the downward protrusions 13 differ from the first embodiment in that they are located near the edge of the base plate 11, between the tip of the diagonal ridge 17 and the tip of the opposite-side ridge 18. However, like the first embodiment, the downward protrusions 13 are equally spaced at multiple locations around the support column 12 at equal distances from the support column 12, and the height of the downward protrusions 13 from the bottom surface of the base plate 11 is equal to or less than the thickness of the base plate 11.

[0033] In this embodiment, the adhesion of the floor panel support leg 10 to the installation surface 70 and the subsequent installation of the floor panel 40 are the same as in the first embodiment (see FIGS. 6 to 8).

[0034] (3) Third embodiment Fig. 11 is an upper perspective view of the floor panel support leg 10 of the third embodiment. Fig. 12 is a lower perspective view of the floor panel support leg 10 of the third embodiment. Fig. 13 is a bottom view of the floor panel support leg 10 of the third embodiment. Fig. 14 is a cross-sectional view taken along line XIV-XIV of Fig. 13.

[0035] The floor panel support leg 10 of this embodiment includes a square base plate 11 and a support pillar 12 that protrudes upward from the center O of the base plate 11 (see FIG. 13). The materials and shapes of the base plate 11 and the support pillar 12 are the same as those of the first embodiment. The support pillar 12 is fixed to the center O of the base plate 11 by a welded portion 19 (see FIGS. 11 and 14). In addition, downward protrusions 13 (see FIG. 13) are formed on the bottom surface of the base plate 11 at positions equidistant from the support pillar 12 and are evenly spaced at multiple locations around the support pillar 12. Note that this embodiment differs from the first and second embodiments in that no through holes 14 are provided in the base plate 11.

[0036] Furthermore, the floor panel support leg 10 of this embodiment includes, around the support column 12, a central protrusion 15 (see FIG. 11) that recesses the bottom surface of the base plate 11 as a central recess 15A (see FIGS. 12 and 13) while protruding from the top surface, and radial protrusions 16 (see FIG. 11) that extend from the central protrusion 15 toward the edges of the base plate 11 and recess the bottom surface of the base plate 11 as radial recesses 16A (see FIG. 12) while protruding from the top surface. The radial protrusions 16 include diagonal protrusions 17 that extend toward the four corners of the base plate 11 and opposite-side protrusions 18 that extend toward the four sides of the base plate 11. The bottom side of the diagonal protrusion 17 is recessed as a diagonal recess 17A (see FIGS. 12 to 14), and the bottom side of the opposite-side protrusion 18 is recessed as an opposite-side recess 18A (see FIGS. 12 and 13). The lengths of the diagonal ridges 17 and opposite side ridges 18 are the same as those in the first embodiment.

[0037] That is, the floor panel support leg 10 of this embodiment comprises a square-shaped base plate 11, a support pillar 12 protruding upward from the center of the base plate 11, a central protrusion 15 around the support pillar 12, which recesses the bottom surface of the base plate 11 while protruding the top surface, radial protrusions 16 extending from the central protrusion 15 toward the edge of the base plate 11, which recesses the bottom surface of the base plate 11 while protruding the top surface, and downward protrusions 13 equally spaced at multiple locations around the support pillar 12 on the bottom surface of the base plate 11 at positions equidistant from the support pillar 12.

[0038] In this embodiment, downward protrusions 13 are provided near the four corners of the base plate 11. The downward protrusions 13 are located on an imaginary diagonal line ID connecting two opposing corners of the base plate 11 and outside an imaginary inscribed circle IC of the base plate 11 (see FIG. 13). In other words, the downward protrusions 13 are located between the four corners of the base plate 11 and the tips of the diagonal protrusions 17. Also, similar to the first embodiment, the height of the downward protrusions 13 protruding from the bottom surface of the base plate 11 is equal to or less than the thickness of the base plate 11 (see FIG. 14).

[0039] The adhesion of the floor panel support leg 10 to the installation surface 70 in this embodiment and the subsequent installation of the floor panel 40 are the same as in the first embodiment, except that since there are no through holes 14, excess adhesive only overflows from the edges of the base plate 11 (see Figures 6 to 8).

[0040] (4) Other In each of the above embodiments, the downward protrusion 13 is formed by subjecting the base plate 11 to half-blanking processing, but the downward protrusion 13 can also be formed on the base plate 11 by the following method. That is, a mold is prepared in which the downward protrusion 13 protrudes downward in advance, and the base plate 11 is forged, so that the downward protrusion 13 can be formed integrally with the base plate 11. Alternatively, the downward protrusion 13 formed as a separate part can be fixed to the bottom surface of the base plate 11 by adhesive or other method. Alternatively, a screw hole can be formed in the base plate 11, and a bolt can be screwed into this screw hole from the bottom side, with the head of the bolt serving as the downward protrusion 13. [Industrial Applicability]

[0041] The technology of the present disclosure can be used in support legs for supporting floor panels. [Explanation of symbols]

[0042] 10 Floor panel support leg 11 Base plate 11A Support post holder 11B Central hole 12 Support post 12A Insertion portion 13 Downward protrusion 13A Upward recess 14 Through hole 15 Central protrusion 15A Central recess 16 Radial protrusion 16A Radial recess 17 Diagonal protrusion 17A Diagonal recess 18 Opposite side protrusion 18A Opposite side recess 19 Welded portion 20 Receiving member 30 Fastening member 40 Floor panel 50 Carpet 60 Adhesive layer 70 Installation surface IB Imaginary bisector IC Imaginary inscribed circle ID Imaginary diagonal line M Midpoint O Center

Claims

1. A square base plate, a support pillar projecting upward from the center of the base plate; a central protrusion around the support pillar, the central protrusion having a recessed bottom surface and a protruding top surface of the base plate; Radial protrusions extending from the central protrusion toward the edge of the base plate, the bottom surface of the base plate being recessed and the top surface being protruding; a plurality of downward protrusions equally spaced about the support pillar on the bottom surface of the base plate at equal distances from the support pillar; A floor panel support leg.

2. The floor panel support leg according to claim 1 , wherein the height of the downward projection from the bottom surface of the base plate is equal to or less than the thickness of the base plate.

3. The floor panel support leg according to claim 1 or 2, wherein the radial ridges include diagonal ridges extending toward the four corners of the base plate and opposite-side ridges extending toward the midpoints of the four sides of the base plate.

4. The floor panel support leg according to claim 3 , wherein the lower protrusion is located between the tip of the opposite side ridge and the midpoint of each of the four sides of the base plate.

5. The floor panel support leg according to claim 3 , wherein the lower protrusion is located between the tip of the diagonal ridge and the tip of the opposite side ridge near the edge of the base plate.

6. The floor panel support leg according to claim 3 , wherein the downward protrusions are located between the four corners of the base plate and the tips of the diagonal ridges.

Images