JP2001049855A - Floor panel-bearing leg device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bearing leg device having sufficient bearing force without being influenced by unevenness or the like. SOLUTION: Four bolt legs 2 for bearing corners of four floor panels are erected on a plate-like base plate 1, floor panel bearing flange sections 3a are formed on the synthetic resin outside in legs 2, cylindrical nut members 3 with embedded metal nut members are screwed, at the same time, while the nut members are connected with a sheet-like joint member 4, a holding flange section 6c for depressing sections formed in the panel corners is provided to the upper part thereof, the lower part is connected to the center of the sheet-like joint member 4 with a screw, and a holding nut member 6 is so constituted that the corner of each of the floor panels is depressed. The cylindrical nut members 3 are formed of synthetic resin material with embedded a metal nut 3c downward of the inside thereof, and elastic faces elastically coming into contact with holes 4a in the sheet-like joint member 4 are provided to part of the peripheral surface.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor panel for forming a double floor called a free access floor, which is provided on a rectangular building floor or the like and has a certain space between the floor and the upper surface of the floor. The present invention relates to a support leg device used for holding and arranging.

[0002]

2. Description of the Related Art Conventionally, various types and structures of support leg devices for a double floor have been proposed and put to practical use. Among these known support leg devices, there is a so-called separated leg type device in which the gathered corners of four floor panels are supported by individual leg members corresponding to each corner of each panel. is there.

The basic structure of this support leg device of the separated leg type is that four metal bolt legs erected on one base plate corresponding to each corner of the four metal floor panels assembled. Since each of the panels has a structure that supports the corners of the respective panels from below via a metal cylindrical nut member, unless each panel is under a load such as a load,
The corners of each panel are free in the upward direction, and in this free state, if the underlying floor surface becomes uneven or is subject to vibration during use, the corners of each floor panel will lower it. It has been pointed out that there is a problem of floating on the cylindrical nut member supported from the outside or rattling and generating a metallic sound. In addition, mechanical play in the threaded portion between the metal cylindrical nut member and the bolt leg also causes the rattling noise and the loosening of the rotation of the nut member.

The applicant of the present invention has provided a structure capable of solving the problems pointed out in the conventional support leg device of the separation leg type, thereby providing a support for the separation leg type in which the supported floor panel does not float or rattle. Leg devices have been proposed earlier.

That is, in the supporting leg device proposed above, four metal bolt legs for supporting four floor panels are erected on a flat base plate, and the floor panel support is provided on each bolt leg on the outer surface. In a supporting leg device for a floor panel in which a metal cylindrical nut member having a flange portion formed therein is screwed, and each of the nut members is connected by a sheet-like connecting member, the bolt leg and the bolt leg are provided substantially at the center of the base plate. A metal central bolt member having approximately the same height is erected upward, while an insertion hole for the central bolt member is formed substantially at the center of the sheet-like connecting member, and formed at a corner of the floor panel. By pressing a holding nut member provided on the lower surface with a holding flange portion for pressing the pressed portion from above and a female threaded cylindrical portion screwed to the center bolt member on the lower surface, The cylinder A set corners of four floor panels supported by inserting the leg insertion hole in the nut member, but which is adapted for fastening to the central bolt member. Further, unlike the leg device, the central bolt member is erected at the center of the sheet-like connecting member, and a lock sheet made of synthetic resin is used so as to overlap the sheet-like connecting member. Has also been proposed.

Although the above-described supporting leg device can achieve the intended purpose, the center bolt member is formed upright from the base plate in the same manner as the bolt leg, or the center of the sheet-like connecting member. Due to the configuration in which the leg portion is erected and the entire cylindrical nut member is made of metal, there is a problem that the weight of the entire leg device is increased and the weight is moderate.

[0007]

In view of the above-mentioned supporting leg device, the present invention reduces the weight of the entire leg device and the number of components, but the supporting force of the floor panel is not inferior to that of the above proposed product. On the other hand, in this type of leg device, since the base plate is fixed on the floor slab by anchor bolts or adhesive, the height of the bolt leg is insufficient due to unevenness or the like, and the screw portion of the cylindrical nut member cannot be screwed. When this occurs, it is necessary to remove the base plate fixed to the floor from the floor and replace it with a base play equipped with a long bolt leg, which is extremely troublesome. It is an object of the present invention to provide a supporting leg device that does not cause such a problem.

[0008]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the construction of the leg device of the present invention is as follows. A flat base plate is provided with four bolt legs for supporting the corners of four floor panels. A tubular nut member having a flange portion for supporting a floor panel formed on an outer surface thereof is screwed to each bolt leg, and the nut members are connected by a sheet-like connecting member. A pressing nut member formed at an upper portion and having a pressing flange portion for pressing a pressed portion formed on the portion from above, and a lower portion formed to be screw-coupled to a central portion of the sheet-shaped connecting member; By screwing to the central part of the member, a set corner of four floor panels supported by inserting a leg insertion hole into the upper part of the cylindrical nut member is pressed against the sheet-like connecting member side. Floor panel support In the leg device, the cylindrical nut member is formed of a synthetic resin material in which a metal nut is embedded in a lower part thereof, and a part of an outer peripheral surface of the cylindrical nut member has an elasticity in a hole of a sheet-like connecting member. It is characterized in that an elastic surface is formed which is in contact with each other.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a leg device according to an embodiment of the present invention. 1 is an exploded perspective view showing an example of the leg device of the present invention in an exploded state, FIG. 2 is a front sectional view for explaining an assembled state, and FIG. 3 is a sectional view of the left half of the cylindrical nut member in the leg device of the present invention. FIG. 4 is a plan view of the nut member of FIG. 3, FIG. 5 is a bottom view of the nut member of FIG. 3, and FIG. 6 is a perspective view showing one corner of one floor panel.

In FIGS. 1 and 2, reference numeral 1 denotes a base plate having a substantially square shape when viewed from a plane. Four base legs are provided at substantially four corners to support a set corner of four floor panels P for each panel P. Bolt legs 2 are erected. These legs 2
At least the upper half has a male thread. Holes 1a for driving anchor bolts for fixing the plate 1 to the base floor are provided at the center and the periphery of the plate 1, but some holes 1a are not provided.

1 to 5, reference numeral 3 denotes a cylindrical nut member which is screwed to each of the bolt legs 2 to adjust the position (height) and support each floor panel P. It is formed as follows. That is, in each nut member 3, an outer flange 3a for supporting the panel P from the lower surface side is formed on the outer periphery of the intermediate portion, and a through hole 3b is formed in the inner center,
A metal nut 3c having a screw screwed to the bolt leg 2 is provided at the lower end of the through hole 3b so as to be buried from the lower side of the hole 3b. It is formed in a square hole 3d into which a tool such as a square wrench can be fitted. With this configuration, even after the floor panel P is laid,
The height of the cylindrical nut member 3 can be adjusted on the bolt leg 2. Instead of the square hole 3d, or together with the square hole 3d, the outer periphery of the top of the cylindrical nut member 3 may be formed in a hexagonal or other rectangular outer shape.

3 to 5, reference numeral 3 e denotes a locking claw piece formed on the outer periphery of the lower portion of the cylindrical nut member 3. When the nut member 3 is inserted into a hole 4 a of a sheet-like connecting member 4 described later, The claw piece 3e of the nut member 3 resiliently contacts the edge of the hole 4a of the connecting member 4, so that the nut member 3 is prevented from rotating independently. In the present invention, a convex bulge may be formed on the outer peripheral surface of the lower half side of the cylindrical nut member 3 instead of the claw piece 3e.

Reference numeral 4 denotes an upright standing on the base plate 1.
In order to connect the four cylindrical nut members 3 screwed on the metal nuts 3c to the two bolt legs 2 at the four corners, the nuts 3c below the outer flange 3a of the nut members 3 are provided at the four corners.
Is a sheet-like connecting member made of a thin metal plate having a hole 4a into which a cylindrical portion having a hole embedded therein is inserted. In the example shown in the figure, a central bolt member 5 for mounting a holding nut member 6 to be described later in a central hole 4b. Are erected by caulking or welding.

Reference numeral 6 denotes a holding nut member. At the center of the lower surface thereof, there is provided a cylindrical portion 6b through which a screw hole 6a penetrates the center, and four corners of the floor panel P illustrated in FIG. A flange portion in the shape of a downward standing wall inserted into an annular groove formed by assembling four pressed parts Pr in
The disk 6d is formed integrally with the disk 6d having the protrusion 6c. 6e is a square hole formed at the center of the upper surface of the disk body 6d so as to communicate with the screw hole 6a. The above members 1 to 6 constitute an example of the leg device of the present invention. An embodiment will be described.

On the four bolt legs 2 of the base plate 1,
First, the sheet-like connecting member 4 is inserted in each of the holes 4a, and then four cylindrical nut members 3 are screwed onto the bolt legs 2 respectively. Adjust the height above. Next, the connecting members 4 previously inserted into the bolt legs 2 are lifted to the nut members 3 whose heights have been positioned, and the connecting members 4 are passed through the holes 4a from the lower side of the nut members 3. Installing. At this time, the upper surface of the sheet-like connecting member 4 abuts against the lower surface of the flange 3a of each nut member 3, and this abutment is achieved by a detent claw piece 3e formed on the outer periphery of the lower portion of each nut member 3. Each hole 4a
The sheet-like connecting member 4 is held at that position by resiliently contacting the inner periphery of the sheet.

The sheet-like connecting member 4 is held in a state where the sheet-like connecting member 4 is in contact with the flange 3a of the nut member 3 from the lower surface side by the action of the claw pieces 3e of the cylindrical nut member 3 in the holes 4a at the four corners. . For the four cylindrical nut members 3 connected to each other via the connecting members 4, leg insertion holes formed in the corners where the four floor panels P are gathered.
At the pH, each nut member 3 is inserted from above. As a result, the concave standing wall Pi inside the pressed portion Pr having a substantially concave cross section formed at the end of the gathering corner of the four floor panels P has the central bolt member 5 erected at the center of the sheet-like connecting member 4. A hole will be formed in a form surrounding the upper part.

Therefore, the holding nut member 6 is passed through a hole formed by the concave standing wall Pi at the corner of the gathering of the four panels P.
In the screw hole 6a of the screw cylinder 6b.
The screw portion is screwed as it is, and by this screwing, the flange portion 6c which forms a downward annular vertical wall formed on the lower surface of the upper disk body 6d of the presser nut member 6 is formed.
Is the pressed part Pr at the gathering corner of the four panels P
And presses the pressed portion Pr of each panel P in an annular shape substantially uniformly.

By the flange portion 6c of the holding nut member 6,
When the collecting corner of each panel P is pressed from above, this pressing force is applied to each cylindrical nut member 3 inserted into the leg insertion hole pH of each panel P and supporting each panel P from its lower surface. Since each flange portion 3a is pulled upward, each nut 3c in each cylindrical nut member 3 and the screw portion of each bolt leg 2 to which each nut 3c is screwed are mutually connected at their peaks and valleys. As a result, the cylindrical nut members 3 are forcibly eliminated from floating in the bolt legs 2, that is, being kept screwed to the bolt legs 2 in a no-load state.

In the example described above, the sheet-like connecting member 4 is used.
A central bolt member 5 is erected at the center of the screw member.
Although the sheet-like connecting member 4 and the holding nut member 6 are screwed together by screwing 6a, in the present invention, the screwing connection may be formed as follows. That is, while the center hole 4b of the sheet-like connecting member 4 is formed as a female screw hole, the lower portion of the holding nut member 6 is formed in a short columnar shape,
By forming a lower end portion of the male screw portion into the female screw hole, a male screw portion is screwed into the female screw hole, and a screw connection between the sheet-like connecting member 4 and the holding nut member 6 is made. It is the aspect which performs.

[0020]

The present invention is as described above. Each cylindrical nut member which is screwed on a bolt leg to support each floor panel and whose height is adjusted is made entirely of synthetic resin to reduce the weight. On the other hand, a metal nut is embedded in the lower part and integrally molded to enable screwing to the bolt leg, and the metal nut can be replaced with a metal nut having a different height, so that the base plate can be replaced. Even if a situation occurs in which the bolt leg and the metal nut cannot be screwed together due to irregularities or the like after fixing the nut to the floor slab, replacing the nut with a longer one can cope with this situation. Further, since a lock seat is not required, the weight can be reduced and the number of parts can be reduced.

Further, in the above-mentioned cylindrical nut member, a square hole is formed in the upper part of the central through hole, and the square hole is exposed on the upper surface side of each floor panel. Even after the nut member is tightened into the center bolt member, the height can be finely adjusted by rotating the cylindrical nut member on each bolt leg. In this case, the height adjustment can be more easily performed by slightly loosening the tightened holding nut member.

Further, in the conventional leg device, the gathering corners of the four metal floor panels are supported from below by the flange portions of the metal cylindrical nut members screwed to the four bolt legs, respectively. Therefore, when no load is applied to each panel from the upper surface side, the metal flange surface and the lower surface of the metal floor panel are in direct contact with each other. Due to the mechanical play in the screw threaded portion with the screwed metal bolt leg, for example, a minute rattling metal sound was generated when a person walked. Is made of synthetic resin,
Since the contact of the flange surface with the floor panel surface is no longer a metal-to-metal contact, and a holding nut member that presses the collecting corner of each panel member from above is attached to the center of the sheet-like connecting member by screw connection, The state in which the corners of the panel are supported from below by the flange portion of the cylindrical nut member is forcibly fixed by being pressed from above by the press nut member, so that the cylindrical nut that has occurred in the conventional product is formed. Prevents almost perfect contact with metal between the flange surface of the member and the lower surface of the panel, or the generation of rattled rattle due to mechanical play between the metal cylindrical nut member and the screw threaded part of the bolt leg. be able to.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of a leg device of the present invention in an exploded state.

FIG. 2 is a front sectional view for explaining an assembled state.

FIG. 3 is a front view in which a left half of a cylindrical nut member in the leg device of the present invention is sectioned.

FIG. 4 is a plan view of the nut member of FIG. 3;

FIG. 5 is a bottom view of the nut member of FIG. 3;

FIG. 6 is a perspective view showing one corner of one floor panel.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base plate 2 Bolt leg 3 Cylindrical nut member 4 Sheet-like connecting member 4a Hole at four corners 4b Center hole 5 Central bolt member 6 Holding nut member 6a Screw hole

Claims (2)

[Claims] 1. A cylindrical base plate having four bolt legs for supporting corners of four floor panels standing on a flat base plate and a flange portion for supporting the floor panel formed on an outer surface of each bolt leg. A nut member is screwed, and the nut members are connected by a sheet-shaped connecting member, while a pressing flange portion that presses a pressed portion formed at a corner of the floor panel from above is provided at an upper portion, and a lower portion is provided. By screwing a holding nut member formed so as to be screw-coupled to the central portion of the sheet-like connecting member to the central portion of the sheet-like connecting member,
A floor panel support leg device configured to press a set corner of four floor panels supported by inserting a leg insertion hole into an upper portion of the cylindrical nut member toward the sheet-like connecting member side, The cylindrical nut member is formed of a synthetic resin material in which a metal nut is embedded in a lower part thereof, and a part of an outer peripheral surface of the cylindrical nut member is elastically in contact with a hole of the sheet-like connecting member. A floor panel support leg device, wherein a surface is formed. 2. The floor panel supporting leg device according to claim 1, wherein the cylindrical nut member is formed such that metal nuts having different heights can be buried in a lower part thereof in a replaceable manner.