JPH071417Y2 - Free access floor for air conditioning - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to an air-conditioning free-access floor that uses an underfloor space as an air chamber for indoor air-conditioning, a so-called air supply chamber, and particularly a floor (floating floor) is laid. The present invention relates to a mutual seal structure for floor panels.

<Prior art and its problems> Generally, the floor panel in this type of free access floor is made of aluminum, steel, calcium silicate board, etc., and an office desk or a computer installed on the floor. Placed on the panel support cap of each support leg standing on the foundation floor so that it can be removed and moved when moving, and mounted on a stringer that connects each support leg in a grid pattern. It is laid so as to be supported, and further, with the gap between the abutting edges around each floor panel taken into consideration in consideration of the elongation of the floor panel due to temperature during the laying. Therefore, the conditioned air in the underfloor space leaks from the gap between the adjacent peripheral abutting edges of the floor panels laying the floor.

Therefore, conventionally, as shown in FIG. 11, the sealing material 20 is attached to the peripheral side surface of the floor panel C with a double-sided tape or an adhesive, or the engaging groove 21 is provided on the peripheral side surface as shown in FIG. It was fitted in the groove 21 and attached, and when the floor panel C was laid, the sealing material 20 was put together to prevent the leakage of conditioned air.

However, the floor panel C on this type of free access floor is removed when the installation items are moved as described above.
Since the mounting and demounting such as mounting after moving is actively performed, the sealing materials 20 contacting each other during the demounting are rubbed against each other and damaged due to abrasion or overlapped with each other.
It has been impossible to maintain the sealing effect for many years, such as when it comes off.

<Problems to be Solved by the Invention> The present invention has been made in view of such conventional circumstances, and a technical problem to be solved is that there is no damage due to wear and a sealing material is used more than necessary. An object of the present invention is to provide a free access floor for air conditioning provided with a sealing structure capable of maintaining the best sealing function for a long period of time under a stable compressed and deformed state without the risk of being crushed.

<Means for Achieving the Technical Problem> The technical means taken by the present invention to achieve the above-mentioned problems are the upper surface of the panel supporting cap of each supporting leg that is erected in a grid pattern on the foundation floor. And between the corner lower surface of the floor panel supported on the cap and between the upper surface of the stringer connecting the supporting legs in a grid pattern and the lower surface of each side of the floor panel supported on the stringer. In addition to interposing a sealing material on the above, a sealing material compression regulating portion is provided on the upper surface of the sealing material or the panel supporting cap or the lower surface of the corner of the floor panel, or the upper surface of the stringer or the lower surface of each side of the floor panel. .

<Embodiment> An embodiment of the present invention will be described below with reference to the drawings.

1 to 7 show the first embodiment, in which A is a support leg which is erected on a concrete foundation floor surface D in a grid pattern and B is provided.
Flange stringer support legs A one another attached to a cross shape over between mutually support legs A mutual panel support cap a ₁ to adjacent the four sides coupled to the grid-like, C is around crowded dropped in between the stringers B It is a floor panel laid with the part c ₁ supported and supported on the panel support cap a ₁ and the stringer B, and the upper surface of the panel support cap a ₁ and the lower surface of the corner flange part c ₁ of the floor panel C. Between the space and the upper surface of the stringer B and the lower surface of each side flange portion c _{1 of the} floor panel C, the conditioned air in the underfloor space E is prevented from leaking through the sealing materials 1 and 2.

The sealing materials 1 and 2 are formed in a predetermined shape with a predetermined thickness using, for example, urethane sponge rubber or the like, which is highly elastic and has a high so-called elastic coefficient. That is, in the case of the sealing material 1, the end portion of the stringer B is formed in a substantially cross shape in a plane up to the middle of the stringer connection portion 3 protruding in a cross shape in the plane of the panel supporting cap a ₁ into which the stringer B is fitted and connected (see FIG. 4). ), In the case of the sealing material 2, the stringer B is formed in a strip shape over the entire length of the upper surface width thereof.

Then, the sealing material compression regulating portions 4,5 for regulating the compression deformation state of the sealing materials 1 and 2 are provided in the sealing materials 1 and 2, and the sealing material 1 is provided on the upper surface of the central portion of the panel supporting cap a _1. , The upper surface of the stringer B or each side flange portion c _{1 of the} floor panel C
The sealing material 2 is attached to the lower surface by a double-sided tape or an adhesive, respectively.

The sealing material compression regulating portions 4 and 5 exceed the compression ratio region where the best sealing function can be exerted when the sealing materials 1 and 2 are respectively arranged at predetermined positions (intervening places), and are more than necessary. It is intended to receive the load of the floor panel C, etc. in the compression rate region so as not to be crushed and to maintain the compression deformation state of the compression rate region in a fixed shape. A desired hard member such as hard synthetic resin or hard rubber is used. It is formed to have a size and shape that can be incorporated in the sealing materials 1 and 2, and its thickness (height) is arbitrarily set according to the material of the sealing materials 1 and 2.

That is, when the sealing materials 1 and 2 are formed using urethane sponge rubber, which is said to be able to exert the best sealing function by suppressing the compressibility to within 25% of the thickness, for example, For example, the sealing material compression regulating portions 4,5 are formed in a block shape as shown in the example with a thickness (height) that is suppressed within 25%, and the sealing material compression regulating portions 4,5 are placed inside the sealing materials 1 and 2. By incorporating each, the sealing materials 1 and 2 are provided with the best sealing function in a stable compression deformation state with a compression ratio within 25% of the thickness, and that stable sealing state is maintained for a long time. To be done.

The sealing material compression regulation portions 4 and 5 can be integrated either at the time of molding the sealing materials 1 or 2 or after the processing, but of course, the mounting positions (built-in positions) should be opened vertically respectively. The openings 6 and 7 are provided so that a part of the sealing materials 1 and 2 is not caught in the upper and lower surfaces of the sealing material compression regulation portions 4 and 5 during the compression process of the sealing materials 1 and 2. In the case of the sealing material compression regulating portion 4, the corner flange portions of the four floor panels C which are placed adjacent to each other on the panel supporting cap a ₁
It is formed in the size between the lower surface of c ₁ or the size to receive them individually as shown in FIG. 2 and built in near the center of the seal material 1 and built in. In the case of the seal material compression regulating portion 5, it is a stringer. The sealing material is formed to have a size extending between the lower surfaces of the respective side flange portions c ₁ of the two floor panels C mounted on B (see FIG. 3), or a size for individually receiving the adjacent flange portions c _1. 2 is built-in at a proper interval in its length direction.

Further, when the sealing material compression regulating portions 4 and 5 are built in at appropriate intervals, as shown in FIG. 5, they are integrally formed continuously through the connecting portion 8 at the time of molding to form the sealing material.
It is easy to assemble into 1 and 2 and has a strong built-in state in which there is no risk of the sealing material compression regulation portions 4 and 5 coming off due to the connecting portion 8.

Thus, according to the above-described first embodiment, the seal materials 1 and 2 having the seal compression regulating portions 4 and 5 incorporated therein are attached to the panel supporting cap a ₁
And the upper surface of the stringer B, and the flange portion c ₁ around the floor panel C is supported on the upper surfaces of the floor panel C so that the floor panel C is dropped and laid, whereby the upper surface of the panel support cap a ₁ And the bottom of the corner flange c ₁ of the floor panel C, the top of the stringer B and the floor panel C.
Sealing materials 1 and 2 are respectively interposed between the lower surface of each side flange portion c ₁ and the sealing material compression regulating portions 4 and 5 are interposed at a compression ratio capable of exhibiting the best sealing function. Retained.

Therefore, there is no risk of damaging the sealing materials 1 and 2 when the floor panel C is detached or attached and detached, and there is no risk of being crushed more than necessary by the load of the floor panel C. The seal structure that can maintain the best sealing function in a stable compression deformation state regulated by 4 and 5 for a long period of time prevents leakage of conditioned air in the underfloor space E.

FIG. 7 shows the first embodiment in which the floor panel C is laid so that the bottom surface of the corner of the floor panel C and the bottom surface of each side are supported on the upper surface of the panel support cap a _{1 and} the upper surface of the stringer B. A modified example of the example is shown, and the shapes of the seal materials 1 and 2 and the mounting form of the seal material compression regulation portions 4 and 5 are the same as those in the first embodiment, and therefore the description thereof will be omitted.

8 to 10 show a second embodiment, which is the upper surface of the panel supporting cap a _{1 with} the sealing materials 1 and 2 interposed therebetween or the floor panel mounted and supported on the cap a _1. A sealing material compression regulation portion 9 is integrally formed on the lower surface of the corner flange portion c _{1 of} C, and a seal is formed on the upper surface of the stringer B or the lower surface of each side flange portion c _{1 of the} floor panel C to be supported on the stringer B. The material compression regulation part 10 is integrally formed to project so that the best sealing function can be maintained for a long period of time under a stable compression deformation state in which the sealing materials 1 and 2 are not crushed more than necessary. is there.

In such an embodiment, opening portions 11 and 12 are opened on the seal material 1 and 2 sides in accordance with the protruding positions of the seal material compression regulating portions 9 and 10, and the seal material compression regulating portions 9 and 10 are formed. Attach the sealing materials 1 and 2 to the formed side with double-sided tape or adhesive. Apply the sealant 1 to the corner flange c ₁ of the floor panel C.
When it is attached to the lower surface, it is formed in a substantially L shape in a plane, and the opening 11 is opened to be attached to the lower surface of the flange portion c ₁ .

<Effect of Device> Since the air-conditioning free access floor of the present invention is sealed by the seal structure configured as described above, the following operational effects are achieved.

Between the upper surface of the panel supporting cap of the supporting leg and the lower surface of the corner of the floor panel supported on the cap, and the upper surface of the stringer connecting the supporting legs in a grid pattern and supported on the stringer. Since there is a seal material between the bottom surface of each side of the floor panel and a fixed shape in a stable compression deformation state by the seal material compression regulation part, it is possible to prevent the conditioned air from leaking from the underfloor space. In addition, there is no risk of damage to the sealing material due to wear when the floor panel is removed, and moreover, the best sealing function that is not crushed more than necessary can be given and the sealing state can be maintained for a long time. I can.

Therefore, it is possible to provide the air-conditioning free access floor provided with a seal structure capable of maintaining the best sealing function in a stable compression deformation state for a long period of time without damaging the sealing material.

Therefore, the intended purpose could be achieved.

[Brief description of drawings]

1 to 7 show a first embodiment of a free-access floor for air conditioning of the present invention, and FIG. 1 is a vertical sectional front view of a main part, and FIG.
The figure shows the same plan view with a part cut away, FIG. 3 is a vertical cross-sectional view taken along line (III)-(III) of FIG. 2, and FIG. 4 is the upper surface of the panel support cap and the lower surface of the floor panel corner. FIG. 5 is a perspective view showing a sealing material interposed between the stringer and a bottom panel, and FIG. 5 is a perspective view showing the sealing material interposed between the upper surface of the stringer and the lower surface of each side of the floor panel. FIG. 6 is a perspective view showing a state in which a sealing material is attached to a panel supporting cap and a stringer, FIG. 7 is a perspective view showing another modification, and FIGS. FIG. 8 shows a second embodiment, FIG. 8 is a vertical sectional front view of a main part, FIG. 9 is a vertical sectional view taken along line (IX)-(IX) of FIG. 8, and FIG. 10 shows another embodiment. FIG. 11 is a vertical sectional view showing a conventional example. In the figure, A: Support leg a ₁ : Panel support cap B: Stringer C: Floor panel 1,2: Seal material 4,5: Seal material compression setting part

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Masahiro Hirayama 2-3 Kandaji-cho, Chiyoda-ku, Tokyo Obayashi Corporation Tokyo headquarters (72) Inventor Toshiro Nishio 2-3-3 Kandaji-cho, Chiyoda-ku, Tokyo Stock company Obayashi Tokyo Head Office (72) Creator Masamichi Ogawa 717-4 Old Market, Kawagoe City, Saitama Prefecture (72) Creator Koji Toyoda 1282-34 Nagasawa, Yokosuka City, Kanagawa Prefecture 47-35025 (Reference) JP, U) Actual flat 3-119132 (JP, U) Actual flat 4-48344 (JP, U)

Claims (1)

[Scope of utility model registration request] 1. A plurality of support legs are erected in a grid pattern on a foundation floor surface, and stringers are attached in a bridging manner between panel support caps of adjacent support legs on four sides to mount a floor panel. In a free-access floor, the space between the upper surface of the panel supporting cap and the lower surface of the corner of the floor panel supported on the cap and the upper surface of the stringer and the stringer are supported on the stringer. While interposing a sealing material between the bottom surface of each side of the floor panel,
An air-conditioning free access floor characterized in that a sealing material compression regulating portion is provided on the upper surface of the sealing material or the panel supporting cap or the lower surface of a corner of the floor panel, or the upper surface of the stringer or the lower surface of each side of the floor panel.