JPH0540186Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to a panel-type floor structure called a free access floor, in which power transmission cables are placed under the floor, such as in OA rooms.

(Prior Art) In a conventional free access floor, supporting leg members each having a flat head are erected on the subfloor at predetermined intervals, and a floor panel is constructed over the heads of these supporting leg members. It is known that the structure is placed and laid in this way.

And on a floor with this structure,
In order to prevent the floor panel from shifting from the support leg members due to vibrations, etc., the floor panel and the support leg members are tightly connected with screws, or the support legs are fixed as described in Japanese Utility Model Application No. 61-32341. Means such as providing a protrusion on the head of the member and fitting and fixing the protrusion into a recess provided on the lower surface of the floor panel is adopted.

(Problem to be solved by the invention) However, according to such a panel installation structure, when horizontal vibration occurs in the floor panel due to an earthquake, etc., the floor panel and supporting leg members are firmly fixed. Because of this, there is no place for stress to escape, and large shearing forces and moments are generated in these connecting parts, making it easy for screws, protrusions, or fastening parts of the floor panel to be deformed or damaged.

Since such damage is particularly likely to occur on the back side of the floor panel, it is not possible to confirm the damaged area from the outside, which makes maintenance, inspection, and repair difficult, and the repair work is also large-scale. It has problems such as becoming a thing.

In addition, if the support member is installed with a slight inclination due to unevenness of the flooring, even if the height of the support member is accurately adjusted, a part of the floor panel fastening portion to the support member may be damaged. Excessive stress concentrates on the parts, making them more likely to break. Such a phenomenon will occur even if the height adjustment of the support member is even slightly uneven.

For this reason, it is necessary to increase the strength of the floor panel and improve the construction accuracy, resulting in problems such as high cost and poor workability.

The object of the present invention is to provide a panel-type floor structure that completely eliminates these problems.

(Means for Solving the Problems) In order to achieve the above object, the panel type floor structure of the present invention has the following features as shown in the drawings corresponding to the embodiments:
In a panel type floor structure in which a plurality of rectangular panels 8 are laid through support members 1 erected at predetermined intervals on a subfloor 2, the upper surface of the support member 1 is formed into a convex arc surface 6. It also has a head 5 having a panel presser fitting part 7 on its upper surface, and a leg 4 erected on the floor subfloor 2, and the head 5 is screwed onto the upper end of the leg 4. On the other hand, the rectangular panel 8 is provided with concave arcuate surfaces 9 on the lower surface of its four corners, which are in contact with quarter portions of the upper surface of the head 5 of the support member 1.

Then, the concave arc surface 9 of each of these rectangular panels 8 is placed on the head 5 of the support member 1, and the leg shaft portion 15 of the panel presser 14 is provided on the head 5 of the support member 1. 7 has a fixed structure.

(Function) The support members 1 are erected at predetermined intervals on the subfloor 2, and their heads 5 are screwed onto the tops of the legs 4 to adjust the height, and then the four corners of the rectangular panel 8 are It is placed on the head 5 of the support member 1.

At this time, the lower surfaces of the four corners of the square panel 8 are concave arc surfaces 9.
Since the head 5 of the support member 1 is formed into a convex arc surface 6, both curved surfaces contact each other and the square panel 8 is supported in a stable state, and when the square panel 8 is placed, The concave arc surface 9 of the head 5 is guided by the curved surface of the head 5 so that it can be placed easily and accurately.

Furthermore, due to unevenness of the flooring 2, etc., the supporting member 1
Even if the support member 1 is erected in a slightly inclined state, the convex arc surface 6 of the head 5 of the support member 1 and the concave arc surface 9 of the rectangular panel 8 fit well together, preventing local load bearing and preventing earthquakes etc. Even if a horizontal load is applied due to the sliding contact between the two curved surfaces, relief occurs in the direction of absorbing the load, and stress concentration is eliminated.

Furthermore, since the rectangular panel 8 is held down at the four corners of the rectangular panel 8 by the panel presser 14 from the upper surface side, the panel presser 14 is exposed on the front side of the rectangular panel 8, making inspection and repair easier. This makes it easier.

(Example) To explain the example of the present invention with reference to the drawings, 1
is a supporting member erected at predetermined intervals in the vertical and horizontal directions on the subfloor 2, and has a leg portion 4 having a screw 3 formed on the outer periphery of the upper part, and is screwed into the screw 3 of this leg portion 4 so as to be freely retractable. It consists of a head 5 in the shape of a cap nut, and the upper surface of the head 5 is formed into a spherical convex arc surface 6, and the center of the tip of the head 5 has a fitting hole such as a screw hole or a locking hole. Section 7 is bored.

Reference numeral 8 designates a rectangular panel, which has concave arc surfaces 9 in curved contact with the upper quarter portions of the head 5 of the support member 1 on the lower surfaces of its four corners, and the corner portions, that is, the tip surfaces of the concave arc surfaces 9. is formed on the concave arc-shaped notch end surface 10.

Although 11 is not necessarily required, it is a packing material that is fitted endlessly into the grooves 12 provided at the center of the four end faces of the rectangular panel 8 when excellent watertightness and dustproof effects are required. The outer peripheral portion may protrude from the peripheral end surface of the rectangular panel 8 by a certain width.

Reference numeral 13 denotes panel presser fitting recesses provided on the upper surface of the four corners of the rectangular panel 8 in correspondence with the concave arc surface 9 on the lower surface side, and the surface thereof is formed in a concave arc shape.

Reference numeral 14 denotes a panel presser having a large-diameter head 16 integrally provided at the upper end of the leg shaft 15. A screw 17 is formed on the outer periphery of the leg shaft 15, and the screw 17 is connected to the head 5 of the support member 1. Either it is screwed into a fitting part 7 drilled in the head 5, or a suitable locking part is formed and the head 5 is removably locked in the fitting part 7 of the head 5.

Further, the lower surface of the large-diameter head 16 is formed into a convex arc-shaped surface that curves into contact with the concave arc surfaces 9 formed on the upper surface of the four corners of the square panel 8, or as shown in FIG. A plurality of ribs 18 in surface contact with 9
are drilled radially.

In the figure, the square panel 8 has rectangular metal plates arranged on the front and back sides, and a filler such as cement is filled between the front plate 8a and the back plate 8b, and the front plate 8a is made smooth and the back plate is placed on the back side. A molded panel with a concave pattern 8c for reinforcement is used in the panel 8b, but it can be formed from a single piece or a composite of a wooden board such as particle board or plywood, or an inorganic board such as slate or calcium silicate board. You may.

Support member 1 and square panel 8 configured in this way
In order to construct a panel floor using the panel retainer 14, first, a large number of supporting members 1 are placed on the floor base 2.
are erected vertically and horizontally at intervals of the length of one side of the rectangular panel 8. At this time, if mounting strength is required, the legs 4 of the support member 1 are fixed to the flooring 2 by adhesive or screws.

Next, the head portions 5 of these support members 2 are attached to the leg portions 4.
By screwing the support members 1 back and forth, level adjustment is performed so that the heads 5 of all the support members 1 are aligned on the same horizontal plane.

After that, four mutually adjacent support members 1
A rectangular panel 8 is constructed between the heads 5, and the concave arc surfaces 9 provided on the lower surface of the four corners are placed on the corresponding quarters of the upper surface of the head 5, and this operation is performed sequentially to form a plurality of sheets. A square panel 8 is laid down.

The end faces of the rectangular panels 8 laid in this manner are in contact with each other, and the concave arc-shaped cutout end faces 10 of the adjacent rectangular panels 8 form circular holes into which the leg shafts 15 of the panel holders 14 can be inserted at the four corners. The panel presser 1 is inserted into this circular hole.
4 is inserted and screwed or locked into the fitting part 7 of the head 5 of the support member 1, and the panel presser 1
The rectangular panel 8 is fixed by pressing the lower surface of the large-diameter head of No. 4 against the bottom surface of a circular recess formed by the fitting recesses 13 on the upper surface of the four corners of the adjacent rectangular panel 8.

In this state, the large-diameter head 16 of the panel presser 14 is housed in the fitting recess 13 of the square panel 8, so that its flat upper surface substantially coincides with the surface of the square panel 8. In addition, as in the example, the square panel 8
When the packing material 11 is made to protrude from the concave arc-shaped notch end surface 10 of the panel holder 14 and is brought into contact with the outer peripheral surface of the leg shaft portion 15 of the panel presser 14, the concave arc-shaped notch end surface 10 will come into direct contact with the threaded portion 17 and the screw will be tightened. It has the advantage of not damaging the mountain.

(Effects of the invention) As described above, according to the panel floor structure of the invention, the height can be easily adjusted by rotating the head 5 of the support member 1 with respect to the legs 4. Of course, the square panel 8 placed on the support member 1
The lower surfaces of the four corners of the support member 1 are formed into concave arc surfaces 9, and the head portion 5 of the support member 1 is formed into a convex arc surface 6, so that both curved surfaces contact each other and the rectangular panel 8 is supported in a stable state. Moreover, when the rectangular panel 8 is placed, its concave arc surface 9 is guided by the curved surface of the head 5, so even if the rectangular panel 8 is heavy or the support member 1 is Even if there is some variation in the installation angle, it can be placed on a flat surface due to the sliding contact between the two curved surfaces, and the construction efficiency can be improved.

Furthermore, due to unevenness of the flooring 2, etc., the supporting member 1
Even if the support member 1 is erected in a slightly inclined state, the convex arc surface 6 of the head 5 of the support member 1 and the concave arc surface 9 of the rectangular panel 8 fit well together, preventing local load bearing and preventing earthquakes etc. Even if a horizontal load is applied due to the sliding contact between the two curved surfaces, escape occurs in the direction of absorbing the load, eliminating concentration of stress, preventing damage to the rectangular panel 8, and allowing it to be used for a long time. It is something.

Furthermore, since the rectangular panel 8 is pressed from the upper surface side at the four corners of the rectangular panel 8 by the panel presser 14, not only can floating of the rectangular panel 8 be reliably prevented, but also the panel presser 14
Since it appears on the surface side of the rectangular panel 8, inspection and repair are easier than in the case where the mounting portion is provided on the bottom surface of the panel as in the past.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Figure 1 is a longitudinal sectional front view, Figure 2 is a perspective view of a rectangular panel, and Figure 3 is a perspective view of a rectangular panel.
The figure is a partially cutaway perspective view showing the construction state, FIG. 4 is a perspective view of the support member, and FIG. 5 is a perspective view of the panel presser. 1... Supporting member, 2... Floor base, 4... 4...
Legs, 5... Head, 6... Convex arc surface, 7... Fitting portion, 8... Square panel, 9... Concave arc surface, 13...
Fitting recess, 14...Panel holder, 15...Leg shaft portion.

Claims (1)

[Claims for Utility Model Registration] In a panel type floor structure in which a plurality of rectangular panels 8 are laid through support members 1 erected at predetermined intervals on a floor base 2, the above-mentioned support members 1
has a head 5 whose upper surface is formed into a convex arc surface 6 and a panel retainer fitting portion 7 is provided on the upper surface, and a leg 4 which is erected on the floor base 2. The head 5 is screwed onto the upper end of the rectangular panel 8, and the support member 1 is attached to the lower surface of the four corners of the rectangular panel 8.
A concave arc surface 9 is provided in contact with a quarter portion of the upper surface of the head 5, and the concave arc surface 9 of each of these rectangular panels 8 is
is placed on the head 5 of the support member 1, and the leg shaft portion 15 of the panel presser 14 is placed on the head 5 of the support member 1.
A panel type floor structure fixed to the above-mentioned fitting part 7 provided in. Panel pressers 14 are attached to the four corners of the upper surface of the rectangular panel 8.
The panel type floor structure according to claim 1, which is a registered utility model, and is provided with a fitting recess 13 into which a head 16 is fitted.