JPH0623642Y2 - Panel support leg device for free access floor - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a panel support leg device for a free access floor, which has a vertical posture due to unevenness of the reference floor surface. Even if it is provided a little away from each other, the panel bodies attached to this device can be supported almost horizontally, and a space for wiring and air conditioning can be effectively formed on the bottom surface of the floor. The present invention relates to a panel supporting leg device capable of sufficiently withstanding a lateral load.

[Conventional technology]

When installing a free access floor, in order to prevent unevenness on the floor surface and steps such as steps on the joining line between panels from occurring due to unevenness of the standard floor surface, etc., JP-A-63-210357, Shokai 63 -152847 and many other solutions have been proposed. In addition, various leg devices having a so-called seismic structure have been proposed.

[Problems to be solved by the device]

However, even if the conventional support leg device is provided with a structure for responding to unevenness such as height adjustment function, it takes time to adjust and the leg device itself rattles due to fine irregularities on the reference floor surface. There are still some inadequacies as a panel support leg device. In addition, as the seismic resistant structure of such a leg device, so-called "root entrapment" or "stringer" or "seismic brace" is attached. If you add a seismic structure,
Since the above-mentioned earthquake-resistant structure is occupying a large amount of space in the space formed on the bottom surface of the floor panel, the space for the corners formed on the bottom surface of the panel becomes narrow, making it difficult to pass wiring, air conditioning ducts, etc. There is a problem that it will end up.

In view of the above-mentioned problems of the conventional device, the present invention has a problem that the support leg device is rattled, laid, or the floor surface is uneven, even if the reference floor surface is uneven or has fine irregularities. In addition to the fact that there are no steps in the floor panel joints and the supported panels do not shift within the plane, a structure that can demonstrate sufficient seismic strength without adding a special seismic structure It is an object of the present invention to provide a support leg device for a panel of a free access floor having

[Means for Solving the Problems]

The configuration of the present invention for solving the above-mentioned problems is a leg in which a bolt rod having a square hole formed in the upper surface of the head is screwed into a screw cylinder body in which three legs are radially arranged and provided obliquely downward. The bolt rod in the main body has a hole in the central portion that can be loosely fitted in the rod, and a panel receiver formed in a substantially dish shape is inserted from the lower end side of the bolt rod. It is characterized in that the bolt rod is supported by a nut member which is screwed and fixed from the lower surface side of the panel seat.

[Action]

The bolt rod screwed into the screw cylinder supports vertical load applied to the four corners of the panel on the top surface of the head, but since the top surface of the head has a square hole, a wrench or the like is formed in the square hole. The height with respect to the screw cylinder can be adjusted by inserting a tool and turning the bolt rod.

In addition, the vertical load of the panel is supported by the loose spherical surface formed on the top surface of the bolt rod head at one of the four corners of the panel.Therefore, even if the bolt rod is tilted due to the unevenness of the reference floor surface, the panel has almost one point. It is supported by and does not rattle.

A hole that is loosely fitted into the bolt rod is formed, and the portion of this hole is supported by being sandwiched between a loose spherical surface formed on the lower surface of the bolt rod head and a loose spherical surface formed on the upper surface of the nut member. Even when the leg body is installed upright with a slight inclination, it is possible to connect the four panels adjacent to the leg body in a horizontal posture.

〔Example〕

 Next, an embodiment of the present invention will be described with reference to the drawings.

1 is a front sectional view of an example of a supporting leg device of the present invention, FIG. 2 is a plan sectional view of a screw cylinder in the device of the present invention, and FIG. 3 is a plan view of an example of a panel seat.

In FIG. 1, reference numeral 1 denotes a screw cylinder body in which three legs 1a are radially arranged at approximately 120 degree intervals on the lower side and are provided obliquely downward. A female screw 1b is provided on the inner surface of the cylinder body 1. Has been formed. A substantially horizontal ground seating surface 1c is attached to the lower end of each leg 1a. The front shape of the leg 1a may be a substantially right-angled triangular shape other than the example shown, or any other suitable shape.

Thus, the cylindrical body 1 has three legs 1a mounted radially downward, and each seat surface 1c of each leg 1a is fixed to a reference floor surface F such as a concrete floor by anchor bolts 1d or the like. By doing so, since it is erected by grounding at three points, it can be stably fixed and erected even if the reference floor surface F has irregularities, and even if a lateral load is applied from any direction, it always has three legs. Both of, by the compression and tensile stress,
Withstands such a load.

Incidentally, if the leg body is grounded and fixed to the reference floor with four legs or a dish-shaped leg seat, the leg and leg seat parts in the direction orthogonal to the lateral load do not act as members supporting the load. .

Reference numeral 2 denotes a bolt rod having a male screw 2a which is screwed into the female screw 1b of the cylindrical body 1, and a square hole 2c is formed on the upper surface of the head portion 2b.
Is formed in a concave shape, and the bolt rod 2 is screwed into the cylindrical body 1 to form the leg body in the present invention. In the illustrated embodiment, the upper and lower surfaces of the head 2b of the bolt rod 2 are formed into gentle spherical surfaces 2d and 2e, and the four corners of the panel are supported by the spherical surface even if the bolt rod 2 is slightly inclined. Become.

Reference numeral 3 denotes a nut member fixed to the bolt rod 2 by inserting a seat 4 to be described later into the bolt rod 2 and then screwing it into the bolt rod 2. In this embodiment, the upper surface of the nut member 3 is also the head of the bolt rod 2. It is formed on a gentle spherical surface 3a which is substantially the same as the spherical surface 2d formed on the lower surface of the portion 2b.

The gentle spherical surfaces 2d, 2e, 3a may be formed on only one of the head 2b of the bolt rod and the nut member 3, or may not be formed on any of them.

Reference numeral 4 denotes a dish-shaped panel seat formed on a panel seating surface 4a having a flat outer peripheral portion, which has a hole 4b having a size capable of loosely inserting the bolt rod 2 in the center thereof and a panel seating surface. Standing tongues 4c orthogonal to each other are formed on the seat surface 4a at a pitch of 90 degrees. Incidentally, 4d is an elastic material such as a rubber plate arranged on the seat surface 4a.

Thus, this seat 4 is removed from the screw cylinder 1 and
The bolt rod 2 with the nut member 3 removed is inserted from the lower end side of the rod 2 into the hole 4b, and the seat 4
The state where the nut member 3 is screwed to the bolt rod 2 and fixed by welding or the like on the lower face side of the bolt rod 2 and is sandwiched between the lower face of the head 2b of the bolt rod 2 and the upper face of the nut member 3 fixed so as not to rotate. The above-mentioned structure constitutes an example of the supporting leg device of the present invention.

The support leg device thus formed supports the panel body 5 as follows.

In this embodiment, the panel body 5 is formed by pressing a thin steel plate into a plate shape of a substantially rectangular plane, and the lower outer skin materials 5a, 5 are formed.
b, a frame member 5c having a substantially sectional shape that also serves as a reinforcing member for the peripheral side walls of the outer skin members 5a and 5b, and these members 5a to 5
An appropriate core material 5d made of an aluminum honeycomb material or the like is loaded inside the space surrounded by c. Where 5
Reference numeral e is an edge material made of rubber or the like attached to the outer periphery of the side surface of the panel body 5, and 5f is a surface material made of jutan or the like attached to the upper surface of the panel body 5.

Incidentally, in the present invention, the panel body 5 supported by the supporting leg device of the present invention is not limited to the above-mentioned example, and other arbitrary materials,
Of course, it may be a panel body formed by the structure.

Thus, in the device of the present invention, a large number of leg bodies to which the seats 4 are attached are appropriately positioned on the reference floor surface F according to the size of the panel body, and the anchor bolt 1 is attached to the floor surface F through the grounding seat 1c.
After hitting d and vertically fixing it, the panel main body 5 is sequentially placed on the receiving seat 4 of each leg device to form a free access floor.

[Effect of device]

In the device of the present invention, when the panel body 5 is positioned with respect to the seat 4, the standing tongues 4c formed at a pitch on the seat surface 4a of the seat 4 hold the panel body 5 at a 90-degree angle. Therefore, the corners of the four panel bodies 5 mounted on the single seat 4 are necessarily located at the center of the seat 4, that is, on the central axis of the bolt rod 2, and There is no risk of slipping.

Further, even if the center of the leg body and the joint center of the panel body 5 deviate from each other while the panel bodies 5 are sequentially laid and laid, the hole 4b of the receiving seat 4 loosens with respect to the bolt rod 2. Since it is a hole, it is possible to cope with the laying deviation of the panel body 5 by shifting the seat 4.

Further, prior to the mounting of the panel main body 5, when the height of the floor surface 4a is uneven between the leg devices due to unevenness under the reference floor surface, the head 2b of the bolt rod 2 is unbalanced. Insert a wrench, etc., into the square hole 2c formed on the top surface of the bolt rod 2
By rotating the screw forward and backward with respect to the screw cylinder 1, the floor surface 4
The height of a can be adjusted arbitrarily.

Particularly, in the device of the present invention, the vertical load is actually supported at the four corners of the panel by the spherical surfaces 2d of the head of the bolt rod 2 even if the leg device itself is set up with a slight inclination with respect to the horizontal plane. As long as the thickness dimension of the panel is constant, there is almost no height error, and therefore, no unevenness or step is formed between the adjacent panels.

Further, the receiving seat 4 is sandwiched between the head portion 2b of the bolt rod 2 and the nut member 3 whose contact surfaces are formed on the spherical surfaces 2d and 3a, and the receiving seat 4 itself is also against the bolt rod 2. By loosely inserting the hole 4b as a loose hole, regardless of the inclination of the bolt rod 2, the seat 4 is kept in a horizontal posture so that the panels are fixed to each other and fixed to the leg device of the present invention at the same time. Can be installed.

Moreover, in the device of the present invention, since the leg body is fixed to the floor surface by the three legs obliquely descending from the screw cylinder, it is always fixed on the geometrical plane. There is no rattling. In addition, since all legs always work as a strength member against lateral load, they exhibit sufficient strength without the need for a separate seismic resistant structure such as "root entrapment" or "braces". There is an advantage in that it is extremely easy to install even when wiring and ducts are arranged in the space formed between the floor surfaces.

As described above, the present invention is extremely useful as a supporting leg device for a floor panel for a free access floor.

[Brief description of drawings]

1 is a front sectional view of an example of a supporting leg device of the present invention, FIG. 2 is a plan sectional view of a screw cylinder in the device of the present invention, and FIG. 3 is a plan view of an example of a panel seat. 1 ... screw cylinder, 2 ... bolt rod, 2b ... bolt head,
2c ... Square hole, 2d ... Spherical surface, 3 ... Nut member, 3a
... spherical surface, 4 seat, 4a floor, 4b hole, 4
c ... Standing tongue, 5 ... Panel body

Front page continued (72) Inventor, Mamoru Kuwayama, 2-17, Hiranocho, Higashi-ku, Osaka City, Osaka Prefecture, Inc. (72) Inventor, Masato Okabe, 2--17, Hiranocho, Higashi-ku, Osaka, Osaka (72) Inventor Yuho Kato 2-17 Hirano-cho, Higashi-ku, Osaka-shi, Osaka

Claims (4)

[Scope of utility model registration request] 1. A bolt rod in a leg body in which a bolt rod having a square hole formed in an upper surface of a head is screwed into a screw cylinder body in which three legs are radially arranged and provided obliquely downward, A panel seat, which has a hole that can be loosely fitted in the rod in the center and is formed in a substantially dish shape, is inserted from the lower end side of the bolt rod, and the lower surface of the seat is attached to the bolt rod. A panel support leg device for a free access floor, which is supported by a nut member that is screwed and fixed from the lower surface side of the seat. 2. The head portion of the bolt rod has upper and lower surfaces formed into a gentle spherical surface, and always contacts the lower surface of the corner of the adjacent panel main body regardless of the inclination of the bolt rod on the upper surface of the head portion. A panel support leg device for a free access floor according to claim 1, wherein the panel body is in contact with and supports the panel body. 3. A panel support leg device for a free access floor according to claim 1 or 2, wherein the nut member has a top surface formed into a gentle spherical surface. 4. The panel for a free access floor according to claim 1, wherein the panel seat has an engaging tongue piece formed on the upper surface thereof so as to be fitted into the joint surface between the panel bodies. Support leg device.