Floor panel support structure

Abstract

This invention provides a floor panel support structure that can suppress displacement of floor panels. [Solution] The floor panel support structure 10 comprises a floor panel 12 and a support device 20 that supports the floor panel 12 at a predetermined height. The floor panel 12 comprises a flange portion 14 provided on the edge of the floor panel 12 and a recess 14a formed in the flange portion 14 and opening downward. The support device 20 comprises a mounting portion 36 on which the bottom surface of the floor panel 12 rests and a position regulating portion 38 positioned below the flange portion. The position regulating portion 38 has a positioning projection 40 that protrudes from the upper surface and fits into the recess 14a.

Description

Technical Field

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[0001] This invention relates to a support structure for a floor panel.

Background Art

[0002] In buildings such as offices, a double floor structure called a raised floor or an OA floor with a space for cable wiring provided under the floor is used. In such a raised floor, the floor panel is supported by support legs arranged on the slab of the building. For example, some support legs have screw columns, an installation plate fixed to the slab, a female screw portion meshing with the screw column, a receiving plate for supporting the floor panel, and a panel retainer attached to the screw column and fixing the floor panel by sandwiching it between the receiving plate (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] When the floor panel is placed on the receiving plate, there is a risk that the floor panel may shift in position.

[0005] In view of the above problems in the prior art, the present invention has been proposed to preferably solve these problems, and an object thereof is to provide a support structure for a floor panel that can suppress the displacement of the floor panel.

Means for Solving the Problems

[0006] A first aspect of the support structure for a floor panel according to the present invention is a support structure for a floor panel including a floor panel and a support device that supports the floor panel at a predetermined height, wherein the floor panel A flange portion provided on the edge of the floor panel, The flange portion comprises a recess formed therein that opens downward, The aforementioned support device is The mounting section on which the bottom surface of the floor panel rests, It comprises a position regulating portion located below the flange portion, The gist of the position regulating portion is that it has a positioning projection that protrudes from the upper surface and fits into the recess.

[0007] A second embodiment of the floor panel support structure according to the present invention is, in the first embodiment, The position regulating portion may have a buffer projection that protrudes from the upper surface of the position regulating portion and is positioned between the flange portions of adjacent floor panels.

[0008] A third aspect of the floor panel support structure according to the present invention is, in the second aspect described above, The positioning projection may be lower than the buffer projection.

[0009] A fourth aspect of the floor panel support structure according to the present invention is that in any one of the first, second, and third aspects, The floor panel has a corner recess that opens downward at the corner, The support device includes an arrangement portion where the corner portion is arranged, The aforementioned arrangement portion may have a receiving projection that protrudes from the upper surface and fits into the corner recess.

[0010] A fifth aspect of the floor panel support structure according to the present invention is that in any one of the first, second, third, and fourth aspects, The recess may be a step formed by the folding of the metal plate that constitutes the outer surface of the floor panel. [Effects of the Invention]

[0011] The floor panel support structure according to the present invention can suppress displacement of the floor panel. [Brief explanation of the drawing]

[0012] [Figure 1] It is a schematic perspective view showing a support structure according to an embodiment of the present invention. [Figure 2] It is a plan view showing a support structure according to an embodiment. Note that the fixing member has been removed. [Figure 3] It is a bottom view showing a floor panel according to an embodiment. [Figure 4] It is a sectional view taken along the line A-A of FIG. 3. [Figure 5] It is a plan view showing a main part of a support structure according to an embodiment. Note that the fixing member has been removed. [Figure 6] It is a plan view showing a main part of a support structure according to an embodiment with the floor panel and the fixing member removed. [Figure 7] It is an exploded sectional view showing a support device according to an embodiment cut at a position corresponding to the line B-B of FIG. 5. [Figure 8] It is an exploded sectional view showing a support structure according to an embodiment cut at a position corresponding to the line C-C of FIG. 5. [Figure 9] It is a side view showing a main part of a support structure according to an embodiment. [Figure 10] It is a sectional view showing a main part of a support structure according to an embodiment cut at a position corresponding to the line C-C of FIG. 5. [Figure 11] It is a sectional view taken along the line D-D of FIG. 10.

Embodiments for Carrying Out the Invention

[0013] Next, a preferred embodiment of the support structure of the floor panel according to the present invention will be described below with reference to the accompanying drawings. Note that the embodiments and drawings described below are examples of a part of the embodiments of the present invention, and are not used for the purpose of limiting to these configurations, and can be appropriately changed without departing from the gist of the present invention.

[0014] As shown in Figure 1, the support structure 10 for the floor panel 12 according to this embodiment comprises a floor panel 12 and a support device 20 that supports the floor panel 12. In the support structure 10, the corners 16 (see Figure 2) of the floor panel 12 are supported by the support device 20 which is placed on the floor slab of the building, so that the floor panel 12 is positioned at a distance from the floor slab. Furthermore, the support device 20 is adjustable in height relative to the floor slab.

[0015] As shown in Figure 2, the floor panel 12 is a flat, rectangular member in plan view. The floor panel 12 includes a flange portion 14 provided on the edge of the floor panel 12 and a recess 14a formed in the flange portion 14 that opens downward (see Figure 4). The flange portion 14 is positioned on the upper edge of the floor panel 12, and the upper surface of the flange portion 14 is aligned with the upper surface of the floor panel 12. The flange portion 14 is also formed around the entire circumference of the floor panel 12 (see Figure 3). The recess 14a is positioned at the base of the flange portion 14, and in this embodiment, it is a groove shape that extends linearly along the edge of the floor panel 12.

[0016] As shown in Figure 2, the corner portion 16 of the floor panel 12 is held by the support device 20. In this embodiment, the corner portion 16 is part of a flange portion 14 that is bent in a stepped shape so that the tip is lower (see Figure 3). The tip of the corner portion 16 is formed in a recessed arc shape (see Figure 3). The corner portion 16 also has a corner recess 16a that opens downward. The corner recess 16a is formed in a groove shape that extends along the diagonal of the floor panel 12.

[0017] As shown in Figure 4, the floor panel 12 of this embodiment has a box-shaped portion made of metal plates such as steel plates, with a filler material such as lightweight mortar filling the inside, and the outer surface and flange portion 14 of the floor panel 12 are made of metal plates. More specifically, the flange portion 14 is formed by overlapping an upper metal plate that forms the upper surface of the floor panel 12 and a side metal plate that forms the side of the floor panel 12, and then folding them over. In the flange portion 14, a recess 14a that is recessed upward is formed between the edge of the folded metal plate and the side of the floor panel 12. Thus, the recess 14a is a step formed by the folding of the metal plate that forms the outer surface of the floor panel 12. Also, the corner recess 16a is a step formed between the folding of the metal plate on one side that forms the corner 16 and the folding of the metal plate on the other side that forms the corner 16 (see Figure 3). In this way, by using steps formed by folding the metal plate that constitutes the outer surface of the floor panel 12 as recesses 14a and corner recesses 16a, recesses 14a and corner recesses 16a can be easily formed.

[0018] As shown in Figure 4, the floor panel 12 of this embodiment has a plurality of recessed portions 12a that open downward and holes 12b that penetrate vertically through the bottom of the recessed portions 12a. By having a plurality of recessed portions 12a, the floor panel 12 is made lighter while improving its strength.

[0019] As shown in Figures 7 and 8, the support device 20 comprises a base member 22 having a male screw 24, support members 26 and 28 having a support female screw 32 into which the male screw 24 of the base member 22 is screwed, and a fixing member 30 attached to the support female screw 32. The support device 20 holds the floor panel 12, which is placed on the support members 26 and 28, by sandwiching it between the fixing member 30 and the support members 26 and 28. In this embodiment, the support members consist of a first support member 26 attached to the male screw 24 of the base member 22 and a second support member 28 placed on the first support member 26.

[0020] As shown in Figure 7, the base member 22 has a male screw 24 that protrudes upward from a plate-shaped base portion 22a. The male screw 24 is formed by threads being formed on the outer surface of a rod-shaped body. The base member 22 is positioned with the base portion 22a placed on the floor slab of the building, with the tip of the male screw 24 pointing upward. Although not particularly limited, the base member 22 in this embodiment is made of metal.

[0021] As shown in Figure 7, the first support member 26 has a support female screw 32 that engages with the male screw 24 of the base member 22, and a panel support portion 34 that extends laterally from the upper edge of the support female screw 32. In the first support member 26, which is approximately square in plan view, the support female screw 32 is located in the center of the first support member 26. The support female screw 32 also penetrates the first support member 26 in the vertical direction. The panel support portion 34 is formed in a plate shape that extends horizontally from the vertical center of a cylindrical portion on which the support female screw 32 is provided on the inner surface. The first support member 26 is attached to the male screw 24 of the base member 22 by engaging the support female screw 32 with the male screw 24. The support device 20 can change the position of the first support member 26 along the axial direction of the male screw 24 by rotating the first support member 26, due to the engagement of the male screw 24 and the support female screw 32. Although not particularly limited, the first support member 26 in this embodiment is made of metal.

[0022] As shown in Figure 8, the second support member 28 has a mounting portion 36 that fits over the panel support portion 34 of the first support member 26, and a position regulating portion 38 that protrudes upward from the mounting portion 36. The second support member 28 is formed in a substantially square shape in plan view (see Figure 6). The mounting portion 36 is the part on which the bottom surface of the floor panel 12 is placed, and is provided at each corner of the second support member 28. When the second support member 28 is placed on the first support member 26, the panel support portion 34 of the first support member 26 fits inside the mounting portion 36, thereby positioning the first support member 26 and the second support member 28. Although not particularly limited, the second support member 28 in this embodiment is made of synthetic resin.

[0023] As shown in Figure 6, the position regulating sections 38 are arranged in a roughly cross shape in plan view. Each position regulating section 38 protrudes upward from the mounting section 36 and is formed as a wall extending from the central part of the second support member 28 to the vicinity of the edge of the second support member 28. The protrusion height of the position regulating section 38 from the mounting section 36 is set to be less than or equal to the vertical dimension from the bottom surface of the floor panel 12 to the lower surface of the flange section 14. Here, the lower surface of the flange section 14 refers to the part other than the recess 14a. When the bottom surface of the floor panel 12 is placed on the mounting section 36, the position regulating section 38 is positioned between adjacent floor panels 12 to position the floor panel 12 (see Figure 9). The position regulating section 38 is also positioned below the flange section 14 that extends from the upper edge of the floor panel 12.

[0024] As shown in Figure 9, the position regulating portion 38 has a positioning projection 40 that protrudes from the upper surface of the position regulating portion 38 and fits into a recess 14a of the flange portion 14 in the floor panel 12. Each position regulating portion 38 has two positioning projections 40 that are spaced apart in the short-side direction of the position regulating portion 38. The positioning projections 40 are positioned outside the short-side center of the position regulating portion 38, and in this embodiment, they are positioned on the side edge along the longitudinal direction on the upper surface of the position regulating portion 38. Furthermore, the positioning projections 40 are formed in a straight line extending in the longitudinal direction on the upper surface of the position regulating portion 38. The positioning projections 40 are set lower than the buffer projections 42, which will be described later.

[0025] As shown in Figure 9, the position regulating portion 38 has a buffer projection 42 that protrudes from the upper surface of the position regulating portion 38 and is positioned between the flange portions 14 of adjacent floor panels 12. Each position regulating portion 38 has one buffer projection 42. The buffer projection 42 is positioned on the upper surface of the position regulating portion 38 closer to the center in the short direction than the positioning projection 40, and in this embodiment, it is positioned in the center in the short direction on the upper surface of the position regulating portion 38. The buffer projection 42 is also formed in a straight line extending in the longitudinal direction on the upper surface of the position regulating portion 38. The buffer projection 42 is set higher than the lower surface of the flange portion 14 positioned on the upper surface of the position regulating portion 38. The buffer projection 42 has a greater protrusion dimension from the upper surface of the position regulating portion 38 than the positioning projection 40, and is able to contact the side surface of the flange portion 14 positioned on the upper surface of the position regulating portion 38.

[0026] As shown in Figure 6, the second support member 28 is formed in the center of four position regulating sections 38 arranged in a roughly cross shape in plan view, and has a positioning section 44 where the corners 16 of the floor panel 12 are placed, and a through hole 46 formed in the center of the positioning section 44 that penetrates the second support member 28 in the vertical direction. The positioning section 44 is formed in a circular concave shape and is recessed below the upper surface of the position regulating section 38 (see Figure 10). The through hole 46 is an opening for screwing the fixing member 30 into the support female thread 32 of the first support member. When the second support member 28 is placed on the first support member 26, the through hole 46 is positioned above the support female thread 32. The inner diameter of the through hole 46 is formed to be larger than the inner diameter of the support female thread 32.

[0027] As shown in Figure 10, the placement section 44 has receiving protrusions 48 that protrude from the upper surface of the placement section 44 and fit into the corner recesses 16a of the floor panel 12. The placement section 44 has four receiving protrusions 48 corresponding to the four floor panels 12 supported by the support device 20. The receiving protrusions 48 are positioned between adjacent position regulating sections 38 in the circumferential direction centered on the through hole 46, and are formed in a straight line extending from the opening edge of the through hole 46 toward the adjacent position regulating sections 38 in the circumferential direction (see Figure 6). The receiving protrusions 48 extend in a direction offset by 45° in the circumferential direction from the positioning protrusions 40 and the buffering protrusions 42. The receiving protrusions 48 are formed lower than the upper surface of the position regulating section 38.

[0028] As shown in Figure 7, the fixing member 30 has a male screw (hereinafter referred to as the fixing male screw) 50 that engages with the support female screw 32 of the first support member 26, and a pressing portion 52 that extends horizontally from the upper end of the fixing male screw 50. The fixing member 30 screws the fixing male screw 50 into the support female screw 32 through the through hole 46, and the pressing portion 52 presses down on the corner 16 of the floor panel 12 placed in the placement portion 44, thereby holding the corner 16 of the floor panel 12 (see Figure 10). Although not particularly limited, the fixing member 30 in this embodiment is made of synthetic resin.

[0029] Next, the assembly of the support structure 10 of this embodiment will be described. The base member 22 is placed on the floor slab, and the support female thread 32 of the first support member 26 is screwed into the male thread 24 of the base member 22 to adjust the height of the first support member 26 to match the height of the floor panel 12 to be installed. Next, the second support member 28 is placed on the first support member 26. Alternatively, the second support member 28 and the first support member 26 may be attached to the base member 22 while the second support member 28 is attached to the first support member 26.

[0030] Next, the flange portion 14 is placed on the positioning portion 36 of the second support member 28 by overlapping it with the position regulating portion 38 and the corner portion 16 with the placement portion 44. At this time, the positioning projection 40 of the position regulating portion 38 fits into the recess 14a of the flange portion 14, and the floor panel 12 is positioned relative to the second support member 28 (see Figure 9). The floor panel 12 can also be positioned relative to the second support member 28 by the side surface of the flange portion 14 of the floor panel 12 contacting the buffer projection 42 of the position regulating portion 38. Furthermore, the floor panel 12 can also be positioned relative to the second support member 28 by the receiving projection 48 of the placement portion 44 fitting into the corner recess 16a of the corner portion 16 (see Figure 11). The remaining three floor panels 12 are also placed on the second support member 28 using the procedure described above. The buffer projection 42 of the position regulating portion 38 is placed between adjacent floor panels 12.

[0031] The fixing male screw 50 of the fixing member 30 is inserted into the through hole 46 of the second support member 28, and the fixing male screw 50 is screwed into the support female screw 32 of the first support member 26. As the fixing member 30 is screwed in, the pressing portion 52 of the fixing member 30 comes into contact with the corner portion 16 of the floor panel 12 placed in the placement portion 44 from above, and the corner portion 16 is fixed by being sandwiched between the pressing portion 52 and the receiving projection 48 of the placement portion 44 (see Figure 10).

[0032] The support structure 10 has a positioning projection 40 that protrudes from the upper surface of the position regulating portion 38 and fits into the recess 14a of the flange portion 14 of the floor panel 12. Therefore, the fitting of the positioning projection 40 and the recess 14a can suppress displacement of the floor panel 12. In particular, the floor panel 12 tends to shift away from the second support member 28 during construction, but with the support structure 10, not only does the stepped corner portion 16 fit into the concave positioning portion 44, but the positioning projection 40 also fits into the recess 14a, so displacement of the floor panel 12 can be suppressed even before the fixing member 30 is attached.

[0033] The support structure 10 has a cushioning projection 42 that protrudes from the upper surface of the position regulating portion 38 and is positioned between the flange portions 14 of adjacent floor panels 12. Therefore, the contact between the cushioning projection 42 and the flange portion 14 can suppress displacement of the floor panels 12. In addition, the cushioning projection 42 can create a gap between adjacent floor panels 12, which can suppress the generation of abnormal noises caused by the floor panels 12 contacting each other. Furthermore, because the support structure 10 can suppress displacement of the floor panels 12, it is easier to install the support structure 10 and the installation period can be shortened.

[0034] Since the positioning projection 40 is lower than the cushioning projection 42, it does not interfere with the cushioning projection 42's function of suppressing contact between floor panels 12, and the positional displacement of the floor panels 12 can be suppressed by fitting with the recess 14a that opens on the lower surface of the flange 14.

[0035] The support structure 10 has a receiving projection 48 that protrudes from the upper surface of the arrangement portion 44 where the corner portion 16 of the floor panel 12 is placed and fits into the corner recess 16a provided in the corner portion 16. Therefore, the fitting of the receiving projection 48 and the corner recess 16a can suppress displacement of the floor panel 12. In addition, when the fixing member 30 is attached to the second support member 28, the receiving projection 48 receives the corner portion 16 that is pressed by the pressing portion 52 of the fixing member 30, thereby preventing the fixing member 30 from being overtightened.

[0036] (Example of change) The present invention is not limited to the aforementioned matters, but may also be applied as follows, for example. Furthermore, the present invention is not limited to the embodiments and the following specific examples of modifications. (1) In the embodiment described above, the male thread of the fixing member is attached to the female thread of the support member, but the configuration is not limited to this, and for example, the female thread of the fixing member may be attached to the male thread of the base member. (2) In the above-described embodiment, the positioning projection, the cushioning projection, and the receiving projection were set to the same width, but the invention is not limited to this, and the positioning projection, the cushioning projection, and the receiving projection may be formed with different widths. For example, the receiving projection may be formed with a narrower width than the positioning projection, making the receiving projection more easily crushed than the positioning projection. [Explanation of symbols]

[0037] 10 Support structure, 12 Floor panel, 14 Flange section, 14a Recess, 16 Corner section, 16a Corner recess, 20 Support device, 36 Mounting section, 38 Position regulating section, 40 Positioning protrusion, 42 Buffer protrusion, 44 Placement section, 48 Receiving protrusion

Claims

1. A floor panel support structure comprising a floor panel and a support device for supporting the floor panel at a predetermined height, The aforementioned floor panel is A flange portion provided on the edge of the floor panel, The flange portion comprises a recess formed therein that opens downward, The aforementioned support device is The mounting section on which the bottom surface of the floor panel rests, It comprises a position regulating portion located below the flange portion, The position regulating portion is a support structure for a floor panel having a positioning projection that protrudes from the upper surface and fits into the recess.

2. The floor panel support structure according to claim 1, wherein the position restricting portion has a buffer projection that protrudes from the upper surface of the position restricting portion and is positioned between the flange portions of adjacent floor panels.

3. The floor panel support structure according to claim 2, wherein the positioning projection is lower than the buffer projection.

4. The floor panel has a corner recess that opens downward at the corner, The support device includes an arrangement portion where the corner portion is arranged, The floor panel support structure according to any one of claims 1 to 3, wherein the arrangement portion has a receiving projection that protrudes from the upper surface and fits into the corner recess.

5. The floor panel support structure according to claim 1, wherein the recess is a step formed by the folding of a metal plate constituting the outer surface of the floor panel.

Images