JPH06158827A - Device for holding floor panel in place - Google Patents

Abstract

PURPOSE:To smoothen operations and to enhance operating efficiency by engaging the engagement portion of a floor panel in the channeled portion of a panel mount via a slide ring, and clamping a floor panel in place by means of a panel holder. CONSTITUTION:A base 4 is held in position on a reference floor surface 3 using an adhesive and a panel mount 6 is rotated to adjust the height of the base 4. From the insertion hole 6h of the panel mount 6 a stopper 10 is engaged between a space formed by the inside wall of a shaft portion 6f and the side wall of a stopper engagement portion 5b to keep the panel mount 6 from rotating and to hold it in place. The engagement portion 2d, 2d of a floor panel 2 is engaged in the channeled portion 6b of the panel mount 6 via a slide ring 12 to lay the floor panel 2. A panel holder 11 is inserted into a through-hole 20 formed by combining four corner portions 2a, 2a and is rotated by a prescribed degree so that the engagement portion 6g of the panel mount 6 is pressed into contact and engagement with the inside flange portion 11d of the panel holder 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor panel fixing device in which a floor panel is laid on a reference floor through fixing legs.

[0002]

2. Description of the Related Art A double floor in which a floor panel is laid on a standard floor, such as a concrete floor, via fixed legs, and a free space is secured between the floor panel and the standard floor so that cables and ventilation ducts can be arranged. The structure, the free access floor, is known.

In the above-mentioned free access floor, corner portions of a plurality of floor panels are placed on the upper end portions of the fixed legs which are erected at predetermined positions, and the floor panels are supported by engaging the panel pressers with the fixed legs. A fixing device for fixing a floor panel to be fixed is known (Shokai 53-12381).
5). According to this fixing device, as shown in FIG.
The floor panel B is attached to the upper part of the fixed leg A fixed to the reference floor surface.
An adjusting table C as a supporting table for supporting the is provided so as to be vertically adjustable, and an engaging hole D is formed in the adjusting table C. Further, a flange portion F is provided at the upper end of the panel retainer E, and an engagement hole G is provided at the lower end thereof, which engages when rotated in the engagement hole D by a predetermined angle. In the panel retainer E, the engaging portion G is inserted into the engaging hole D of the adjustment base C from the through hole H formed between the plurality of floor panels and rotated by a predetermined angle. The flange portion F is engaged with the step portion I of the through hole H, and the floor panel B is fixed on the adjustment table C by the panel retainer E.

[0004]

However, in the floor panel fixing device, the panel retainer E is
There is a problem that the metal plate is in a state of pressure contact with the floor panel B and the contact surface is damaged during the rotating operation, and the floor panel B is laterally displaced due to frictional force. Further, in order to solve this problem, even if a lubricant such as grease is applied to the contact surface, the grease has a drawback that it is easily contaminated with dust or the like and is removed by repeated work. Further, when the lower end of the panel retainer E is loosely fitted to the adjustment base C so that the panel retainer E does not engage with the floor panel B in a pressure contact state, the floor panel B is insufficiently tightened and rattling easily occurs. was there.

Therefore, the present invention makes it possible to smoothly rotate the panel retainer to facilitate the attachment / detachment of the panel retainer during construction and inspection, and prevent damage to the contact surface between the panel retainer and the floor panel. An object of the present invention is to provide a fixing device for a floor panel having a slide ring that can be used.

[0006]

In order to achieve the above object, in a floor panel fixing device of the present invention, a base plate fixed to a reference floor surface and a screw portion formed upright on the base plate are formed. A support member, and a panel pedestal screwed to the screw portion and rotatable from above the floor panel,
A structural feature that includes a panel retainer that engages with the panel pedestal to fix the floor panel, and a slide ring that is formed of a synthetic resin and that is interposed between the panel retainer and the floor panel. And

[0007]

According to the floor panel fixing device of the present invention having such a structure, a slide ring made of synthetic resin is interposed between the panel retainer and the floor panel, and the frictional force therebetween is reduced. Therefore, even when the panel retainer is inserted into the through hole formed by laying a plurality of floor panels and then the floor panel is pressed to fix the floor panel in a pressure contact state, the panel retainer can be smoothly rotated. Can be performed, and work efficiency is improved. Further, since there is no metal contact between the panel retainer and the floor panel, the contact surfaces thereof are prevented from being damaged.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

1 to 3 show a first embodiment of the present invention. The fixing device of the floor panel is screwed into a rectangular substrate 4 fixed to the reference floor surface 3 and a screw 5a of a supporting member 5 provided upright on the substrate 4, so that the corner portion 2a of the floor panel 2 is placed. The panel pedestal 6, the stopper 10 that is engaged with the support member 5 and the panel pedestal 6 to prevent the panel pedestal 6 from rotating, and the corner 2a of the floor panel 2 is fastened and fixed together with the panel pedestal 6. And a panel holder 11 for

The board 4 is arranged below the position where the corner portions 2a of the four floor panels 2 adjacent to each other are gathered in the central portion of the free access floor, and adjacent to each other on the wall surface side of the free access floor. It is arranged below the position where the corner portions 2a of the two floor panels 2 are gathered.

The support member 5 provided upright in the central portion of the upper surface of the substrate 4 is composed of a screw portion 5a formed on the lower peripheral surface and a stopper engaging portion 5b integrally formed on the upper surface. There is. A hole 5 is formed in the center of the upper end of the stopper engaging portion 5b.
c is formed.

A circular panel flange 6a is provided on a panel pedestal 6 which is rotatably erected on a supporting member 5 of a substrate 4, and an annular shape on which a corner 2a of the floor panel 2 is placed. Groove portion 6b is formed. A cylindrical shaft portion 6c is integrally formed below the flange 6a, and a screw hole 6d that is screwed into the screw member 5a is formed on the inner peripheral surface of the shaft portion 6c. 6e is a flange portion 6a and a shaft portion 6
A plurality of reinforcing ribs are provided between the ribs and c. On the other hand, on the upper portion of the flange portion 6a, a cylindrical shaft portion 6f integrally extending upward and a panel pressing member 11 on the upper end portion of the shaft portion 6f
An overhanging engagement portion 6g that engages with is provided.
Further, a screw hole 6i is formed in the center of the upper surface of the engaging portion 6g.

The engaging portion 6g of the panel pedestal 6 has
A plurality of insertion holes 6h into which the stopper 10 is inserted are provided. The stopper 10 is formed in a plate shape, is inserted through the insertion hole 6h, and is engageably and disengageably engaged with a gap formed by the inner side wall of the shaft portion 6f and the side wall of the stopper engaging portion 5b of the support member 5. The movable panel receiving base 6 is prevented from rotating and held at a predetermined height.

The slide ring 12 is made of synthetic resin and is fitted in the groove 6b of the panel receiving base 6.

The floor panel 2 is formed into a substantially square shape, and each corner portion 2a has a quadrantal step portion 2b.
And a notch 2c. Also, the corner portion 2a
The engaging portion 2d formed on the lower surface of the is fitted in the groove portion 6b of the panel receiving base 6. Therefore, even in the temporary state before fixing the floor panel, the floor panel 2 does not easily fall off.

The panel retainer 11 that engages with the panel pedestal 6 and fixes the floor panel 2 is formed in an annular shape, has an insertion hole 11a in the center, and has an engagement surface 11 on the lower surface.
c is provided. An inner flange portion 11d is formed in the insertion hole 11a so as to face each other.

The panel retainer 11 is inserted into the through hole 20 formed by assembling four corner portions 2a, and the engaging surface 11 is formed.
c is engaged with the stepped portion 2b of the floor panel 2, and the inner flange portion 11d is engaged with the lower surface of the engagement portion 6g of the panel pedestal 6 inserted through the insertion hole 11a while being pressed against the lower surface. That is, the panel retainer 11 is provided with the inclined portion 6j formed on the lower surface of the engaging portion 6g of the panel pedestal 6,
The corners 2a of the floor panel 2 are tightened and fixed by being drawn downward in accordance with the rotation. At this time, the panel holder 11 is firmly tightened and fixed by the elastic deformation of the slide ring 12, and is prevented from loosening or coming off due to vibration or the like.

Now, a method of constructing a free access floor will be described with reference to FIGS. 1 to 3. First, the substrate 4 is fixed at a predetermined position on the reference floor surface 3 with an adhesive or the like, and the panel pedestal 6 is rotated to adjust the height. At this time, since the height of the upper end of the panel pedestal 6 (the upper surface of the engaging portion 6g) matches the height of the upper surface of the floor panel 2, the height of the panel pedestal 6 is determined before laying the floor panel. Adjustments can be made and workability is improved. Next, the stopper 10 is engaged with the gap formed by the inner side wall of the shaft portion 6f and the side wall of the stopper engaging portion 5b from the insertion hole 6h of the panel receiving base 6 to prevent the panel receiving base 6 from rotating. To fix. Thereafter, the engaging portion 2d of the floor panel 2 is engaged with the groove portion 6b of the panel pedestal 6 via the slide ring 12 to lay the floor panel 2. Then, when the panel retainer 11 is inserted into the through hole 20 formed by assembling four corner portions 2a and rotated by a predetermined angle (about 90 °), the engaging portion 6g of the panel receiving base 6 and the panel retainer 11 are separated. The inner flange portion 11d engages in a state of being in pressure contact. In this way, the panel holder 11 can be easily attached by one-touch to tighten and fix the floor panel 2.

When the height of the floor panel 2 is readjusted after the floor panel 2 is laid, the panel retainer 11 and the stopper 10 may be removed and the panel pedestal 6 may be similarly rotated. Since it can be operated from above, work efficiency is improved.

[0020]

As described above, according to the floor panel fixing device of the present invention, the slide ring made of synthetic resin such as nylon having self-lubricating property is interposed between the panel retainer and the floor panel. Since the frictional force between them is reduced, the panel pressing operation can be performed smoothly.
Work efficiency can be improved. Further, since the structure has no metal contact, the contact surface between the panel retainer and the floor panel is prevented from being damaged. Further, the reduction of the frictional force on the contact surface prevents lateral displacement of the floor panel due to the rotation of the panel retainer.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a construction state of a fixing device according to a first embodiment of the present invention.

FIG. 2 is a partial cross-sectional perspective view of a panel retainer and an engaging portion.

FIG. 3 is a sectional view of the fixing device in a mounted state.

FIG. 4 is a cross-sectional view showing a conventional example.

[Explanation of symbols]

2 ... Floor panel, 4 ... Substrate, 5 ... Support member,
6 ... Panel cradle, 11 ... Panel retainer, 12 ...
Slide ring.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takao Okumura 39 Shinmachi, Yashio City, Saitama Prefecture, Tokyo Institute of Technology, Naka Research Institute Co., Ltd. (72) Tatsuo Shoji 39 Shinmachi, Yashio City, Saitama Prefecture Naka Gijutsu Co., Ltd. Research Institute Tokyo Research Institute (72) Inventor Tetsuo Tobikawa 39 Shinmachi, Yashio City, Saitama Naka Technology Research Institute Tokyo Research Laboratory

Claims (1)

[Claims] 1. A substrate fixed to a reference floor, a support member standing on the substrate and having a screw portion formed thereon, and a screw member screwed onto the screw portion, and rotatable from above a floor panel. A panel pedestal, a panel retainer that engages with the panel pedestal to fix the floor panel, and a slide ring formed of a synthetic resin interposed between the panel retainer and the floor panel. Fixing device for floor panel.