JP3136316B2 - Floor panel - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor panel used for a free access floor constituting a double floor, which can cope with unevenness of a building floor, can be laid without rattling, and can be appropriately sized. It relates to a floor panel that can be cut.

[0002]

2. Description of the Related Art Normally, when floor panels are laid from the center of the floor, the width of the basic unit floor panel is generally too narrow to be obtained at the border position, which is the end of the room. In order to lay the place, floor panels of different shapes in the whole shape having patterns of several sizes smaller than the width of the floor panel of the basic unit have been prepared in advance. In addition, as floor panels used for free access floors that can cope with irregularities on the floor surface, each floor panel is provided in a vertical and horizontal direction by providing a minute spacing between independent block-shaped unit support elements. The lower and upper edges of the adjacent unit support elements are arranged side by side so as to be flexibly connected to each other by a thin resin hinge portion having a reduced thickness in order to provide flexibility, and are hinged to each other. 2. Description of the Related Art There is known a so-called floor type floor panel in which each unit supporting element moves up and down in accordance with unevenness of the floor surface so that the floor panel can be laid along unevenness of the floor surface. In this type of floor panel, the thin resin hinge portion is appropriately cut by a cutting tool such as a cutter to make the floor panel smaller and correspond to the narrower border portion.

[0003]

As described above, preparing several types of floor panels in consideration of the narrow width of the border portion increases costs in terms of manufacturing, management, and construction of floor panels. Was made up. On the other hand, the type in which the thin plate resin hinges are connected to each other, the lower edge or the upper edge of the unit support element is entirely connected by a continuous flexible thin plate resin hinge. Although flexibility in the vertical or horizontal direction along the connecting portion is obtained, there is no followability of the unit support element to unevenness in an oblique direction such as a diagonal direction. In addition, the adjustment of the interval between the unit support elements caused by the unevenness of the floor surface will be performed by expansion and contraction of the thin plate resin hinge portion, and therefore, the size of the interval between the unit support elements on the upper surface portion will be large and small, As a result, a minute change occurs in the length dimension on the upper surface of the floor panel, which also affects the dimension of the finishing material.

Further, by cutting thin resin hinges between the unit supporting elements so as to be able to be laid using a floor panel having a size of a basic unit at a border position on the floor surface, various widths can be obtained. However, in this case, it is necessary to cut the entire thin sheet resin hinge portion, and the cutting is appropriately performed by a cutting tool. However, there is also a disadvantage that the cut surface cannot be cleaned. Also, the thickness of the top plate of the unit support element and the thickness of the thin resin hinge portion are different, and the hinge portion is formed thin to obtain flexibility, so that the molding material flows into the thin resin hinge portion during manufacturing. There was also a drawback that it was difficult to do. Further, the thin resin hinge portion contracts earlier than other portions, and a difference in internal stress has occurred between the thin resin hinge portion and the other thick top plate or supporting leg portion.

Further, the unit support element composed of a block body has a surface which is light in weight and easy to lay, for example, because the lower portion of the top plate is formed by a space surrounded by support legs, but has a poor sense of stability. There was also.

[0006]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned drawbacks, and comprises a unit support element formed by a top plate and a support leg for supporting the top plate, and formed to project outward from the support leg. The peripheral edge of the top plate thus formed is aligned with the projecting peripheral portion of the top plate of the other unit support element adjacent thereto in the vertical and horizontal directions with a small space therebetween. The present invention provides a floor panel used for a free access floor, wherein the floor panel is connected by an appropriate number of connecting hinges having substantially the same thickness and width as the thickness of the floor panel. Further, the present invention provides a floor panel, wherein the width of the connecting hinge portion is a cross-sectional shape in which the upper surface portion side is formed narrow. Further, the present invention provides a floor panel characterized in that the unit support element and the connecting hinge portion are made of resin and are integrally formed. In the space surrounded by the top plate and the support legs, mortar,
It is intended to provide a floor panel characterized by being filled with a curable fluid such as concrete. Further, the present invention provides a floor panel characterized in that the support leg end portions are surrounded by a sheet-like covering.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION A floor panel used for a free access floor according to the present invention is a floor panel that can be laid in a deformable manner in response to irregularities in all directions occurring on a building floor. This will be described based on an example. Embodiment 1 FIG. 1 is a plan view showing the entire floor panel 1 of the present invention. As shown in the drawing, the floor panel 1 has a large number of unit support elements 2.
Are arranged at small intervals in the vertical and horizontal directions, and the adjacent unit supporting elements 2 are connected to each other by a connecting member 3 at the upper part thereof. As shown in a perspective view seen from the back side of FIG. And a reinforcing rib 6 formed on the inner surface of the support leg 5
And more.

Further, as shown in FIG. 3, a wiring cover of a wiring groove formed between the adjacent floor panels 1 is engaged with an end of the unit supporting element 2 located at a peripheral portion of the floor panel 1. To this end, a step 7 corresponding to the thickness of the wiring cover and an appropriate locking means 8 are formed. As shown in FIGS. 4 and 5, the peripheral edge of the top plate 4 is formed so as to protrude outward from the support legs 5 to form a minute interval W between adjacent unit support elements 2. As a result, the distance between the support legs 5 supporting the top plate 4 of the one-unit support element 2 can be reduced, and the load bearing capacity from above can be shared in a balanced manner as a whole. Some of the minute intervals W include:
The top plates 4 of the adjacent unit support elements 2 form a connection hinge portion 9 which is a connection member 3 having a thickness equal to or nearly equal to the thickness of the top plate 4. In the present embodiment, two connecting hinge portions 9 are formed between adjacent unit support elements 2 at substantially equal intervals on one side thereof.

The width of the connecting hinge portion 9 may be approximately the same as the width of the top plate 4. However, as shown in FIG. A trapezoidal section having a D2 width substantially equal to the top plate thickness or a trapezoidal section having an isosceles section is also employed. With the above-described configuration, it is possible to obtain a product that can obtain predetermined strength and can be easily cut. In the embodiment, since the top plate 4 is about 2 mm thick, the thickness and the width of the connecting hinge portion 9 are used according to the thickness. The number, thickness, and width of these connecting hinge portions 9 can be appropriately selected in terms of location, shape, and size within a range that achieves the object of the present invention.

As shown in FIG. 7, when the floor panel 1 is laid on a predetermined floor surface, the floor panel 1 can be laid in a non-standardized gap H generated in a border portion such as an end of the floor panel. The panel 1 is cut into the connecting hinge portion 9 so as to fit the gap to form an appropriately sized floor panel, which is used as the floor panel 10 of the border portion. In addition, the minute gap with the wall surface that has been generated can be closed by adjusting and coating with appropriate means such as a parting material. The above cutting can be easily performed because it is only necessary to cut only the connecting hinge portion 9 using a cutting tool such as a cutter.
Further, as shown in FIG.
And apply a series of unit support elements 2 located outside,
By lifting the side end of the plate-shaped member 11 as a fulcrum, the connecting hinge 9 can be cut.

Embodiment 2 FIG. 9 shows a case in which a space 12 between support legs 5 supporting a top plate 4 is filled with a hardening fluid 13 such as mortar or concrete. The floor panel 1 is turned over, and the top plate 4 and the support legs 5
By making them function as a permanent mold, the curable fluid 13 can be filled without preparing a separate body such as a mold. FIG. 10 shows a sheet-like lid 14 between the tips of the support legs 5 and an appropriate hole 1
5, the curable fluid 16 is filled. With this sheet-shaped lid 14, good contact with the floor surface can be achieved. According to the above embodiment, a floor panel having a sense of stability can be obtained.

[0012]

As described in detail above, according to the present invention,
Since a suitable number of connecting portions having a thickness and a width approximately equal to the thickness of the top plate of the unit support element are formed between the upper edges of adjacent unit support elements, a floor formed by arranging the unit support elements vertically and horizontally. As a whole panel, sufficient flexibility against unevenness of the floor surface can be obtained. Particularly, since the connecting portion is connected and arranged at the upper surface in the intermittent state, unlike the conventional continuous thin strip-shaped resin hinge portion, the binding force between the unit supporting elements is only the connecting portion having a narrow width, and therefore, The flexibility in the diagonal direction such as the diagonal direction of the floor panel is also obtained, and it is possible to cope with unevenness of the floor surface in various directions.

Further, the adjustment of the floor panel caused by the unevenness of the floor surface is performed mainly by the bending movement of the unit supporting element without depending on the expansion and contraction of the thin resin hinge portion. The spacing between the support elements is less likely to vary, resulting in less change in length at the top of the floor panel and less effect on the dimensions of the finish. Further, since the conventional thin resin hinge portion is more flexible than necessary, it was impossible to bend and cut the portion as necessary, but the present invention is not applicable to cutting tools and the like. It is also possible to perform bending and cutting without using cutting means. Further, even when cutting is performed using a cutting tool, only the connection portion having the narrow width needs to be cut, so that the time required for cutting can be greatly reduced, and the construction is facilitated.

Further, in the conventional one, the thickness of the top plate of the unit support element and the thickness of the hinge part are different, and the hinge part is formed thin, so that the molding material flows into the thin resin hinge part during manufacturing. Difficult and difficult to manufacture. Furthermore, in the conventional thin-plate resin hinge portion, shrinkage occurs earlier than other portions, and a difference in internal stress occurs between members. Are substantially the same, there is no difference in such internal stress.

[Brief description of the drawings]

FIG. 1 is a plan view of one embodiment of a floor panel for a free access floor of the present invention.

FIG. 2 is a partially cut perspective view of the back side of the unit support element.

FIG. 3 is a perspective view of one embodiment of a floor panel for a free access floor of the present invention.

FIG. 4 is a side sectional view of a connection portion between unit support elements.

FIG. 5 is a side sectional view of a connection portion between unit support elements.

FIG. 6 is a cross-sectional view of a connection portion between unit support elements.

FIG. 7 is a cross-sectional view of a border portion in a state where a floor panel for a free access floor of the present invention is laid on a floor surface.

FIG. 8 is a side view showing a state where the floor panel for a free access floor of the present invention is bent.

FIG. 9 is a side cross-sectional view of another embodiment of a connection portion between unit support elements.

FIG. 10 is a side cross-sectional view of another embodiment of a connection portion between unit support elements.

[Explanation of symbols]

 1 Floor panel 2 Unit support element 3 Connecting material 4 Top plate 5 Support leg 6 Reinforcement rib 7 Stepped section 8 Locking means 9 Connection hinge section 10・ Border floor panel 11 ・ ・ Plate member 12 ・ ・ Space 13 ・ 16 ・ ・ Curable fluid 14 ・ ・ Cover 15 ・ ・ Hole

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-4-55562 (JP, A) JP-A-6-317004 (JP, A) JP-A 63-117949 (JP, U) (58) Field (Int. Cl. ⁷ , DB name) E04F 15/024 602

Claims (5)

(57) [Claims] A unit support element is formed by a top plate and a support leg for supporting the top plate, and a peripheral portion of the top plate protruding outward from the support leg is formed on a top of another adjacent unit support element. A small number of gaps are formed with the protruding peripheral portion of the plate so as to face each other in the vertical and horizontal directions, and a suitable number of connections having a thickness and width substantially equal to the thickness of the top plate are provided between the protruding peripheral portions of the top plate. A floor panel used for a free access floor, which is connected by a hinge. 2. The floor panel according to claim 1, wherein the width of the connecting hinge portion has a cross-sectional shape formed narrower on the upper surface side. 3. The floor panel according to claim 1, wherein the unit supporting element and the connecting hinge are made of resin and are integrally formed. 4. The floor panel according to claim 1, wherein a space surrounded by the top plate and the support legs is filled with a hardening fluid such as mortar, concrete, or the like. . 5. The floor panel according to claim 4, wherein a space between the distal ends of the support legs of each unit support element is surrounded by a sheet-like covering.