JPH07300977A - Square free access floor panel - Google Patents

Abstract

PURPOSE:To provide a rigid type panel excellent in handling which can be deformed along the unevenness of a base floor surface by simple operation if there is unevenness on the base floor surface and, once deformed along it by simple operation, its state can be maintained for long. CONSTITUTION:In a square free access floor panel, a collecting part 16 to collect all by a joint part with a strength enough to deform when a load is applied and not deform by its own weight only is provided, and divided into two small blocks 2. Also the collecting part 16 is enabled to deform along the unevenness of a base floor surface of each small block 2 by a load, and connected with a fixture to maintain that state.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a square free access floor panel which can be used as a free access floor panel in a floor such as an office room or a general office room.

[0002]

2. Description of the Related Art What is required of a free access floor panel (hereinafter, simply referred to as a panel) capable of free access is that the weight of an OA device or the like installed on the panel can be tolerated and the following foundation is required. Even if the floor is uneven, the individual panels laid on it will not rattle. In addition, it is also necessary to be as light as possible from the viewpoint of the influence on the building and workability.

For this reason, this kind of panel is actually fair.
As disclosed in Japanese Patent Application Laid-Open No. 015866, wiring groove forming blocks arranged at a predetermined interval are connected to each other by a flexible sheet to form a wiring groove having a flexible sheet as a bottom between the blocks. Is formed in an orthogonal shape, and the upper part of the wiring groove is covered with a cover. This is because if the foundation floor surface is uneven, the flexible sheet is freely deformed by the weight of the block and follows it.

On the other hand, Japanese Patent Publication No. 5-048346 proposed by the applicant of the present invention at the same time as the above-mentioned invention divides a rectangular panel into several triangular portions by means of concave grooves, and The apex is supported by supporting legs, and the strength of the remaining part of this groove is minimally deformed by the weight of each triangular part during laying, and along the minimum unevenness of the foundation floor surface, and in a certain triangular part. This load is shared by the adjacent triangular portions via the remaining portion of the concave groove. The panel itself has a certain degree of rigidity to facilitate portability.

[0005]

However, in the former case, since the flexible sheet is so soft that it can be freely flexed by the weight of the block, the product is dimensionally varied or deformed, and the flexible sheet is laid. At times, the panel may slip or the cover may come off. Moreover, since it is more easily deformed than a single rigid panel, it is inferior in portability and handling. On the other hand, the latter is a flexible connection having a higher strength than the former, but in order for the triangular portions to be smoothly deformed, the triangular portions are required to have a certain size and weight, and thus there is a limit to weight reduction.

Under the above-mentioned problems, the present invention prevents the panel from rattling along the uneven surface of the foundation floor,
It provides a floor panel suitable for a groove construction wiring system that can be handled and handled in the same manner as a single-panel type.

[0007]

The panel according to the present invention comprises:
In a rectangular panel, it deforms when a load is applied, but it does not deform only by its own weight.It is divided into small blocks with a connecting part that gathers together by a connecting part, and this collecting part is divided into small blocks by load. Is coupled with a fixing tool that enables deformation of the foundation floor surface along unevenness and maintains that state.

[0008]

The panel according to the present invention uses the above-mentioned means, that is, each small block is deformed when a load is applied, but is divided by the connecting portion having a strength that does not deform only by its own weight. It has high rigidity, can be handled and carried like a single-panel type, and has excellent handleability. Even so, the gathering part of each small block is joined by a fixture that maintains the state after the joint part is forcibly deformed once and follows the unevenness of the foundation floor, so there is rattling. Does not happen. In addition, since a surface material is usually attached to the surface of the panel, it is possible to feel more at ease.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 5 show a first embodiment of the present invention,
It is an example of a lightweight and highly productive panel made of one member.
1 is a plan view of a panel in this example, FIG. 2 is a side view, FIG. 3 is an enlarged view of part A of FIG. 1, FIG. 4 is a sectional view taken along line BB of FIG. 3, and FIG. It is a perspective view of the fixing tool.

The panel 1 is divided into four quadrangular small blocks 2 by a narrow connecting portion 3 extending vertically and horizontally in the center, and leg portions 5 are integrally formed at four corners of the small block 2. (FIGS. 1 and 2). Therefore, the wiring space is provided between the leg portions 5 on the back surface of the panel 1, but in addition to this, the panel 1 may be laid with a space and the space may be used as the wiring space. The connecting portion 3 connects adjacent small blocks 2 with a thin wall (FIG. 2). The thin wall has a strength that does not deform only by the weight of the small block 2, but a person steps on it from above. It can be deformed by applying a load of.
That is, it has rigidity (strength) to the extent that it does not adversely affect the handling and laying accuracy.

The divided small block 2 has a gathering portion 16 where all of the pieces are gathered somewhere on the panel 1.
The gathering portion 16 in this example is provided at one place in the central portion of the panel 1 where the connecting portions 3 intersect (FIG. 1). Meeting part 1
6 has a circular hole 17, a groove hole 9 having a constant depth is formed continuously with each connecting portion 3 around the hole 17, and a small block is provided between the groove holes 9. A flange 10 which is slightly lower than the upper surface of 2 and has a considerable space between it and the bottom surface is provided so as to project from the corner of the small block 2 (FIG. 3). The slot 9
The line at the back end and the root of the flange 10 is formed in a circular shape concentric with the hole 17 (FIG. 3).

In the collecting section 16, a fixture 6 for connecting the small blocks 2 is used. This fixing tool 6 allows the connection portion 3 between the small blocks 2 to be deformed along the unevenness of the foundation floor surface by the load from above, and maintains the state after being deformed once. It is a thing. Fixture 6
Has a protrusion 8 on the lower part of the body 18 and a pressing plate 7 on the upper part.
Are projected (FIG. 5), of which the body portion 18 and the protrusion 8 are fitted into the above-mentioned hole 17 and slot 9 of the panel 1, and the pressing plate 7 presses the flange 10 from above. Is.

That is, when the projection 8 is inserted from above in accordance with the position of the slot 9 and rotated by 45 °, the projection 8 and the pressing plate 7
The flange 10 is sandwiched between and fixed by and (FIG. 4). At this time, the upper surface of the fixture 6 and the upper surface of the small block 2 are set to have the same height. In order to facilitate this operation, the pressing plate 7 is formed with a cutout groove 21 into which a tool or the like can be inserted (FIG. 5).

The above-mentioned fixtures 6 are installed before the panel 1 is carried into the laying site, and the panel 1 is laid on the foundation floor in this state, after which the surface material such as carpet is adhesive. It is attached with an adhesive. In addition, it is also possible to use a method in which the surface material is attached in advance by a sticky adhesive such as peel-up bond at a factory, etc. According to this method, it is possible to further shorten the work at the construction site. Become.

Generally, the base floor surface is 2 to 3 m per 1 m.
Since it is unavoidable that a m-level unevenness will occur, a normal rigid panel is supported by up-and-down adjustable support legs to suppress backlash. However, the panel 1 according to the present invention
Is laid directly on the foundation floor. At this time, if there is unevenness on the lower foundation floor, a person may step on it from above to apply a load, and the connection part 3 will be deformed and follow the unevenness. At the same time, the state is maintained by the action of the fixture 6. The surface material is attached after performing such an operation.

That is, the fixing tool 6 strongly clamps the flange 10 formed at the corner of the small block 2, but the load applied to follow the unevenness is increased to a moment relatively larger than the restoring force. To be done. Therefore, the sandwiching portion is displaced until it extends along the uneven surface, but after the displacement is once maintained, the state is maintained even if the load is removed. At this time, the adhesive force of the surface material such as the tile carbed attached to the panel 1 also adds to this action.

FIGS. 6 to 10 show a second embodiment of the present invention, which is an example of a lightweight and highly productive panel made of a single steel plate. 6 is a plan view of the panel 1 in this example, FIG. 7 is a side view, FIG. 8 is a sectional view taken along the line CC of FIG. 6, FIG. 9 is an enlarged sectional view taken along the line DD of FIG. 6, and FIG. 10 is the center of the panel 1. FIG. 3 is a partially enlarged perspective view of a corner of a small block 2 located at a position.

The panel 1 in this example is divided into four quadrangular small blocks 2 and a collecting portion 16 for collecting the small blocks 2 is formed in the center, which is the same as in the first embodiment. The difference is that a wide groove 20 is formed in the fractionation part (FIG. 6), and each small block 2 is connected by the remaining part 13 bent slightly inward at the bottom of the outer end of this groove 20 (FIG. 7). And FIG. 8). That is, the remaining portion 13 serves as the connecting portion 3 described above, and has a strength that does not deform only by the weight of the small block 2, but it can deform when a load is applied from above.

The groove 20 is a portion to be a wiring groove, and the groove lid 11 is put on the groove 20. Specifically, the upper portions on both sides of the groove 20 between the small blocks 2 are formed into a slightly lower step portion 21,
The groove lid 11 is placed on the stepped portion 21. A claw piece 1 protruding downward at an appropriate position on the long side of the groove lid 11.
5 is formed, and this claw piece 15 enters into and engages with the hole 14 formed in the upper surface of the step portion 21 of the small block 2 (FIG. 8). Incidentally, the upper surfaces of the groove lid 11 and the small block 2 are set to be flush with each other, as in the case of the first embodiment.

Similar to the first embodiment, the small blocks 2 in the collecting section 16 are joined together by the fixtures 6. The fixture 6 in this example also includes a protrusion 8 and a pressing plate 7, and the engagement groove hole 12 is formed from the position where the protrusion 8 is off the corner of the side surface of the small block 2 to the corner.
It is fitted and fixed in (FIG. 10).

That is, the position where the protrusion 8 is out of the corner,
That is, when the fixture 6 is fitted into the hole 17 of the collecting portion 16 so as to be at the position of the groove 20 and then turned to the corner side,
The protrusion 8 enters the engaging groove hole 12, and the pressing plate 7 and the protrusion 8
The step portion 21 is sandwiched and fixed by and (FIG. 9). Therefore, the step portion 21 formed at the end of the groove 20 is continuous with the corner of the small block 2 which is the collecting portion 16, and the pressing plate 7 is placed on the step portion 21 (FIG. 9). The fixture 6 is made large enough for a socket or the like to be attached.

By the way, at this time, if the engaging groove hole 12 is formed obliquely so as to become lower toward the center side of the corner (FIG. 10), as the fixing tool 6 is rotated, the projection 8 is formed in the engaging groove. It bites into the hole 12 and tightens firmly. Besides this,
A tongue piece 22 is projectingly provided on the inner end of the groove lid 11, and the fixing tool 6 presses the tongue piece 22 to prevent the groove lid 11 from floating (FIG. 6). The upper surface of the pressing plate 7 at this time is set to be flush with the upper surfaces of the small block 2 and the groove lid 11, which is the same as above, and the action of the fixture 6 and the time and effect of attaching the surface material. Is also the same as above.

11 to 14 show a third embodiment of the present invention, which is the same as that of the first embodiment in that it is a lightweight and highly productive panel made of one member. 11 is a plan view of the panel in this example, FIG. 12 is a sectional view taken along line EE of FIG. 11, FIG. 13 is an enlarged view of an F portion of FIG. 11, and FIG.
It is a -G sectional view.

The panel 1 in this example is characterized in that the connecting portions 3 for dividing the small blocks 2 are provided in the diagonal direction, and accordingly, the small blocks 2 are triangular.
As a result, the small block 2 is supported at three points on the foundation floor, and it becomes easier to follow it due to its unevenness. Further, the connecting portion 3 of this example is not continuous over the entire length of the fractionation portion and is partially provided. As a result, the strength of the connecting portion 3 is increased and the dimensional stability of the entire panel 1 is secured. Further, the end of the small block 2 is formed in the low step portion 23 so that a groove cover can be attached, and a wiring groove is provided on the outer periphery of the panel.
The constructions of the fixture 6 and other panels 1 themselves are almost the same as those of the first embodiment.

[0025]

INDUSTRIAL APPLICABILITY As described above, the present invention is a single rectangular rigid panel that is convenient to carry and handle, but if there is unevenness on the foundation floor, it can be easily operated by stepping on it from above. I was able to do that, and I was able to bring up a very useful panel that could be kept in that state for a long time once I met it.

[Brief description of drawings]

FIG. 1 is a plan view of a rectangular panel showing a first embodiment of the present invention.

FIG. 2 is a side view of a rectangular panel showing the first embodiment of the present invention.

FIG. 3 is an enlarged plan view of a portion A of FIG.

FIG. 4 is a sectional view taken along line BB in FIG.

FIG. 5 is a perspective view of a fixture showing the first embodiment of the present invention.

FIG. 6 is a plan view of a rectangular panel showing a second embodiment of the present invention.

FIG. 7 is a side view of a rectangular panel showing a second embodiment of the present invention.

8 is a cross-sectional view taken along line CC of FIG.

9 is a cross-sectional view taken along the line DD of FIG.

FIG. 10 is an enlarged perspective view of a small block showing a second embodiment of the present invention.

FIG. 11 is a plan view of a rectangular panel showing a third embodiment of the present invention.

12 is a sectional view taken along line EE of FIG.

13 is an enlarged plan view of an F portion of FIG.

14 is a sectional view taken along line GG of FIG.

[Explanation of symbols]

 1 panel 2 small block 3 connection part 6 fixture 16 assembly part

Claims (1)

[Claims] 1. A rectangular free access floor panel is divided into small blocks by having a gathering portion where all are gathered by a connecting portion having a strength that deforms when a load is applied, but does not deform only by its own weight. A rectangular free access floor panel, characterized in that the parts are connected by a fixture that allows each small block to be deformed along the unevenness of the foundation floor surface by a load and maintains the state.