JP4198279B2 - Floor panel fixing structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a floor panel fixing structure capable of restricting a positional deviation of a floor panel in a floor panel for free access in which a floor panel is floated with a certain height on a foundation floor via support legs.
[0002]
[Prior art]
There are various structures for supporting and fixing the floor panel to the support leg. In many cases, the floor panel is pressed against the support leg by a panel presser from above. Specifically, the entire circumference of the steel plate floor panel is an outer peripheral flange in which the upper surface plate and the lower surface plate are joined in a superposed state, and a low step is formed at the corner tip, and the panel is formed on this low step. The presser foot is fitted (because the panel presser cannot protrude from the top surface of the floor panel) and is screwed into the screw struts that make up the support leg, and the bottom of the floor panel corner is pressed onto the support leg (special feature). (Kaihei 7-317282).
[0003]
[Problems to be solved by the invention]
However, there is a risk that the panel presser will be tightened more than the specified amount, causing the lower step to be deformed, creating a step between the panel presser and the floor panel, and varying the tightening force. . This fixing force is not only in the vertical direction, but also the area around the lower step is easily deformed due to the structure, so no matter how hard it is clamped, the horizontal displacement, especially the floor panel, is subjected to a bending load. Sufficient deterrence does not work against the displacement in the direction of the load point at the corner when bending.
[0004]
Therefore, when a load is applied to the floor panel, such as when a person walks or installs equipment, it may bend. In particular, since the area occupied by the low step portion is very small compared to the area of the entire floor panel, when a load is applied to the center of the floor panel, a large moment is generated, which easily causes displacement and deformation. In addition, when a large load is applied, the lower stepped part is broken due to a large deflection or is disengaged from the panel presser, and the deterrence does not work at all. This invention solves such a subject and provides the fixing structure of the floor panel which cannot be shifted | deviated horizontally.
[0005]
[Means for Solving the Problems]
More under the object, the present invention is to support the corners of the square floor panels with support legs, the panel pressing I fixing structure der floor panels for securing tightening from above and below the floor panels in the support legs, The floor panel is formed from the low step at the corner tip to the diagonal direction, and the neck, side and bottom surfaces that are higher than the low step are formed continuously. A receiving surface portion that receives the portion, a high weir portion that enters between the neck portion and the side surface portion in a diagonal direction from the receiving surface portion, and a mounting portion that receives the bottom surface portion of the floor panel, and the panel presser receives the lower step portion. Fixing the floor panel in which the head part is clamped from above and below with the surface part, and the body part is formed that is screwed into the inner periphery of the mounting board by screw struts that form support legs and pass through the mounting board. In the structure, the height of the receiving surface portion from the top surface is the bottom surface of the floor panel. In addition, the height of the high dam is set lower than the height to the lower surface of the neck so that the low step is elastically deformed and clamped. The present invention provides a floor panel fixing structure characterized by exhibiting the effect of preventing the panel presser from loosening .
[0006]
By taking the above-described means, the head and the receiving surface portion directly clamp the lower step portion from above and below to restrict the tightening of the panel presser. Further, the high weir portion regulates the position of the neck portion, restricts the standing wall of the low step portion with the head portion, and restricts the position of the low step portion with the trunk portion. In addition, the inner periphery of the mounting board regulates the position of the body part and regulates displacement and deformation between a plurality of members such as a floor panel, a support leg, and a panel presser.
[0007]
Furthermore, the present invention provides means for fixing the floor panel as described above , wherein the panel presser is such that the outer periphery thereof is slidably contacted with the inner periphery of the platform at the upper and lower portions of the trunk portion . By this means, the panel presser can be reliably fixed in a stable state .
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 is a perspective view of a floor panel fixing structure showing an example of the present invention, FIG. 2 is a plan view, FIG. 3 is a cross-sectional view taken along line A-O-A in FIG. 2, and FIG. However, the floor panel fixing structure includes a support leg 3 placed on the foundation floor 2 at the corner of the floor panel 1 and a panel for fixing the floor panel 1 supported by the support leg 3 to the support leg 2. It consists of presser 4.
[0009]
Among them, the support leg 3 is a structure in which a screw support 6 having sufficient rigidity against falling is raised from a ground plate 5 that is fixed and appropriately fixed on the foundation floor 2. The receiving board 8 is fixed to the screwed nut 7 and the receiving board 8 supports the mounting board 9 on which the floor panel 1 is placed. In this case, the outer peripheral end of the mounting plate 9 is bent downward to wrap around the outer periphery of the receiving plate 8, and the protrusion is fitted in the recessed portion formed in the receiving plate 8 at the central portion. It is a structure in which the misalignment is restricted. In addition, by forming the peripheral wall of the recessed fitting portion substantially vertically, the effect of suppressing the displacement between the receiving plate 8 and the mounting plate 9 is enhanced.
[0010]
The floor panel 1 is formed by covering a lower surface plate having an edged container shape having a bottom surface portion 15, a side surface portion 11, and a horizontal flange formed by bending outside the upper end of the side surface portion 11, covering the outer periphery with a flat plate-shaped upper surface plate. It is made of steel plates with a joined structure, and has a superposed flange of upper and lower plates on the entire circumference. A low step portion 10 having a four-radius circular cut-out portion is formed in a four-radius circular shape on the overlap flange at the corner tip, and is diagonally spaced from the standing wall of the low step portion 10 at a predetermined interval. The side part 11 is descending. Therefore, an inverted U-shaped recessed portion is formed between the standing wall and the side surface portion 11. The side surface portion 11 extends along the side and circulates around the bottom surface of the floor panel 1, but the corner is chamfered at 45 degrees so as to form an orthogonal surface with respect to the diagonal direction.
[0011]
In the side direction following the low step portion 10, a thick edge portion 13 that protrudes downward along the side portion is formed extending to the vicinity of the side surface portion 11. Since the thick edge portion 13 is obtained by the winding of the horizontal flange of the lower surface plate around the outer periphery of the upper surface plate, there is no need for special processing, and it protrudes downward from the overlapping flange by the thickness of the upper surface plate wound to the lower surface side. It has become thick. In addition, a flat upper surface portion 14 is formed from the upper end of the standing wall of the low step portion 10, and a bottom surface portion 15 is formed from the lower end of the side surface portion 11.
[0012]
The panel retainer 4 includes a disk-shaped head 16 and a body 17 having a smaller diameter than the head 16. The head portion 16 has a diameter that allows the corners of the four floor panels 1 to enter the lower step portion 10 having a circular shape in the assembled state, and the trunk portion 17 has a notch portion that is also circular. It has a diameter that penetrates into the inside, and the outer periphery thereof is slidably contacted with the inner periphery of the platen 9 at the upper and lower portions, and a screw portion that can be screwed into the screw support 6 is formed at the center. Yes.
[0013]
The above floor panel 1 is placed on the platform 9 of the support leg 3. In this case, the platform 9 has a receiving surface portion 18 that receives the low step portion 10 in the innermost periphery and a trunk portion 17 enters in the center. A through hole is formed in a donut shape, and in the diagonal direction following the receiving surface portion 18, a high weir portion 19 higher than the receiving surface portion 18 and a mounting portion 20 considerably lower than this are continuously formed, In the side direction, a low dam part 21 lower than the high dam part 19 and a partition part 22 lower than the low dam part 21 are continuously formed.
[0014]
In this case, the height of the receiving surface portion 18 from the upper surface of the mounting portion 20 is set slightly lower (about 0.3 to 3.0 mm) than the height from the bottom surface portion 15 of the floor panel 1 to the lower surface of the low step portion 10. In addition, the height of the high dam portion 19 is also set slightly lower than the height to the lower surface of the neck portion 12. Further, the surface of the high dam portion 19 on the low step portion 10 side has a shape along the upright wall, and the surface on the side surface portion 12 side has a shape along the side surface portion 12. And the width of the low dam part 21 has twice the width of the thick edge part 13 in order to accommodate both the thick edge parts 13 of the adjacent floor panel 1, and to perform position control, The width of the portion 22 is double the length from the side portion of the floor panel 1 to the side portion 11 in order to enter the space between the side portions 11 of the adjacent floor panels 1 and perform position regulation.
[0015]
Next, as to how to place the floor panel 1 on the support leg 3, if the nut 7 is moved up and down to adjust the platform 9 to a predetermined height, the low step portion 10 becomes the receiving surface portion 18 of the platform 9. The bottom surface portion 15 is placed on the mounting portion 20 in such a manner that the side surface portions 11 on both sides of the corner are fitted between the two adjacent partition portions 22. Then, the neck portion 12 sandwiches the high dam portion 19 from inside and outside in the diagonal direction, and the thick edge portion 13 fits into the low dam portion 21 in the side direction. At this time, if the thickness of the high dam portion 19 is matched with the width of the neck portion 12, the neck portion 12 sandwiches the high dam portion 19, and the displacement is further suppressed. Such an operation is performed on the four floor panels 1.
[0016]
At this time, the support legs 3 may be inclined due to unevenness of the foundation floor surface 2 or the height of the low step portion 10 may not be uniform due to manufacturing errors of the floor panel 1, but the height of the receiving surface portion 18 is reduced. By setting the height of the step portion 10 and the height of the high dam portion 19 slightly lower than the height of the neck portion 12, the panel presser 4 can be tightened in a state in which they are absorbed. . Further, the low step portion 10 is clamped in an elastically deformed state, and the effect of preventing the panel retainer 4 from being loosened is exhibited.
[0017]
In this state, when the panel retainer 4 is screwed onto the screw support 6, the outer periphery of the body portion 17 descends while being in sliding contact with the inner periphery of the platform 9, and the displacement and deformation of each other are regulated, The portion 16 enters the low step portion 10 and directly clamps the low step portion 10 from above and below with the receiving surface portion 18. At this time, if the outer shape of the head portion 16 is matched with the inner diameter of the low step portion 10, the standing wall of the low step portion 10 is pinched by the high dam portion 19, and the high dam portion 19 is sandwiched by the neck portion 12. A double displacement control structure is configured with pressure. In addition, by allowing the outer periphery of the body portion 17 to be in sliding contact with the inner periphery of the low step portion 10, the low step portion 10 is pinched by the high weir portion 19, thereby providing a further displacement control structure. .
[0018]
As described above, when the floor panel 1 tries to shift in the diagonal direction, the above-described displacement control structure including the sandwiching of the high weir portion 19 by the neck 12 of the floor panel 1 works cooperatively, Be sure to regulate. Moreover, even if it is about to shift in the side direction, the above-described positional shift restricting structure is formed radially with a diagonal extension, so that the positional shift is controlled, but the thick edge 13 of the floor panel 1 is restricted. The position shift is more reliably regulated by fitting into the low dam part 20 and fitting between the partition parts 22 of the side face part 12. In this way, the floor panel 1 is regulated to be double or triple in positional deviation both in the diagonal direction and in the side direction.
[0019]
【The invention's effect】
As described above, according to the present invention, the floor panel is displaced in both the diagonal direction and the side direction by the double and triple horizontal displacement control structures in addition to the reliable and strong vertical clamping pressure. Because it is regulated, it makes it difficult for the load to bend or deform, or to rise or fall off due to an earthquake or the like. This means that the upper and lower clamping pressure by the panel presser does not need to be excessively increased, and local deformations and steps are eliminated and the finished aesthetics are not impaired.
[0020]
In particular, the amount of flexure of the floor panel can be greatly reduced and the breaking load can be greatly increased by strongly suppressing the displacement and deformation of the low step portion due to the load. This means that if the strength performance is set to the same level as that of the conventional product, it is possible to reduce material costs and transportation costs by reducing the diameter or thickness of the support leg members and panel retainers. Double floor system can be provided at low cost.
[Brief description of the drawings]
FIG. 1 is a perspective view of a floor panel support structure showing an example of the present invention.
FIG. 2 is a plan view of a floor panel support structure showing an example of the present invention.
3 is a cross-sectional view taken along line A-O-A in FIG. 2;
4 is a cross-sectional view taken along the line BB in FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Floor panel 3 Support leg 4 Panel presser 6 Screw support | pillar 9 Mounting board 10 Low step part 11 Side part 12 Neck part 13 Thick edge part 15 Bottom part 16 Head part 17 Body 18 Reception surface part 19 High dam part 20 Mounting part 21 Low Weir

Claims (2)

This is a floor panel fixing structure in which the corners of a square floor panel are supported by support legs and the floor panel is fastened and fixed from above and below with the support legs. In the diagonal direction, a neck, a side surface, and a bottom surface that are higher than the lower step portion are formed in succession, and a platform that constitutes support legs and supports the floor panel includes a receiving surface portion that receives the lower step portion, and a diagonal line from the receiving surface portion. In the direction, a high weir portion that enters between the neck portion and the side surface portion, a mounting portion that receives the bottom surface portion of the floor panel is formed, and the panel presser includes a head portion that sandwiches the low step portion with the receiving surface portion from above and below, In the fixing structure of the floor panel in which the body portion is formed that is screwed to the inner periphery of the mounting board by the screw support that constitutes the support leg and is inserted through the mounting board , the receiving surface part from the upper surface of the mounting part Height is the height from the bottom of the floor panel to the bottom of the lower step Addition to setting remote low, the height of the high dam portion, by setting lower than the height of the lower surface of the neck, to exert a loosening effect of squeezing pressure the panel pressing in a state where the lower step portion is elastically deformed A floor panel fixing structure characterized by comprising 2. The floor panel fixing structure according to claim 1, wherein the panel presser is configured such that the outer periphery thereof is slidably contacted with the inner periphery of the platform at the upper and lower portions of the body portion .

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