JP3999889B2 - Access floor - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an access floor laid as a base material under a carpet tile or the like in an office or the like.
[0002]
[Prior art]
In order to secure space such as wiring cords, floors such as buildings are usually laid with a base material called access floor on concrete, and floor materials such as carpet tiles are placed on this base material. It has become.
[0003]
As a conventional access floor, a plastic or metal one having a large number of legs formed on a 50 cm square plate member is known. In this access floor, there are several lengths of legs, and a space such as the wiring cord can be secured between the legs.
[0004]
[Problems to be solved by the invention]
However, the conventional access floor has a problem in that the cost is high because each individual floor is small and requires a very large number for the required area.
[0005]
Furthermore, since the plate member to which the floor material is bonded is a structure that is supported by the points by the legs, a predetermined thickness is required to ensure rigidity, and thus the space secured by the legs is also required. There is a limit, and even if a certain height is secured, there is a problem that a thick cord, hub body, connector, etc. of a personal computer cannot be physically stored.
[0006]
The present invention has been proposed to deal with the actual situation as described above, and has an object to provide an access floor that is inexpensive and has a minimum cord storage space and is easy to construct. Is.
[0007]
[Means for Solving the Problems]
The present invention employs the following means in order to achieve the above object.
That is, as shown in FIG. 1, the present invention provides an access floor laid as a base material under a floor material such as carpet tile (not shown).
A synthetic resin felt material 1 having a required thickness is impregnated with a synthetic resin 2 and cured to form a base portion 3, and a skin layer 7 is formed on the upper and lower surfaces of the base portion 3 to prevent penetration of the working adhesive 6. It is characterized by having shown.
[0008]
In this case, it is possible to form a groove portion 5 in which the wiring cord 4 or the like is embedded in the base portion 3, and it is also possible to form a plurality of the groove portions 5 in parallel or in a lattice shape.
[0009]
It is also possible to provide a detachable cap 8 that closes the groove 5. The cap 8 extends downward along the side wall of the groove 5 from the lid body 10 that covers the groove 5. It is also possible to form a pair of mating members 11 and to form two anti-slip claws 12 on the side wall of the groove of the mating member 11.
[0010]
[Action]
In the access floor of the present invention, the felt material 1 is hot melted by hot pressing up and down with a press plate having a groove-forming convex portion in a state where the synthetic resin felt material 1 is impregnated with the synthetic resin 2. At the same time, it is possible to cure the synthetic resin 2 and to integrally mold the base portion 3, the groove portion 5 and the skin layer 7 at the same time, thereby making the base material covering a relatively large area very inexpensive. It is possible to manufacture.
[0011]
The access floor according to the present invention has a structure in which the floor material is supported by the entire mat-like base portion 3 without providing conventional legs. In addition, even when the groove portion 5 is formed deeply, it can be formed to be very thin as compared with the conventional case, thereby eliminating unnecessary flooring.
[0012]
Furthermore, since the hardened felt is the main constituent material in the present invention, it is lightweight and can be cut with a cutter knife. Depending on the situation, the post-processing of the groove can be performed, and if the carpet is turned, the rearrangement of the wiring can be easily performed.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is a sectional perspective view showing an access floor according to the embodiment of the present invention, and FIG. 2 is a plan view of the access floor according to the embodiment.
[0014]
The access floor of the above embodiment is laid as a base material between a floor material (not shown) such as carpet tile and concrete 9, and a liquid heat is applied to the heat-meltable synthetic resin felt material 1 having a required thickness. The base portion 3 having a size of about 1 tatami is formed by impregnating and curing the curable synthetic resin 2.
[0015]
The heat-meltable synthetic resin felt material 1 is inexpensive if, for example, a recycled polypropylene felt material is used, and the thermosetting synthetic resin can be, for example, solution acrylic.
[0016]
Then, an upward opening groove 5 for embedding the wiring cord 4, hub body, outlet, connector and the like is formed in the base portion 3, and further, peel-up bond and adhesive 6 at the time of construction are respectively formed on the upper and lower surfaces of the base portion 3. The skin layer 7 is formed to prevent the permeation of water.
[0017]
As shown in FIG. 2, a plurality of grooves 5 can be formed in parallel or in a lattice shape, and the width, depth, shape, and the like can be arbitrarily selected. In the case where the groove portion 5 is formed by crossing, it is preferable to chamfer the felt material of the cross portion considering that the cross portion is used to arrange the cord in a bent state.
[0018]
The groove 5 and the skin layer 7 can be simultaneously formed by thermally melting the hot-melt synthetic resin felt material 1 when the base portion 3 is formed.
That is, the base part 3 is formed by thermosetting the thermosetting synthetic resin 2 impregnated in the thermomeltable synthetic resin felt material 1 by hot pressing. At this time, the groove forming convex part is formed. The base part 3, the groove part 5, and the skin layer 7 can be integrally formed simultaneously by hot pressing up and down with a press plate having the same.
[0019]
On the other hand, it is desirable that the groove portion 5 is provided with a detachable cap 8 that closes the groove portion 5.
FIG. 3 is a partial perspective view showing an example of the cap. The cap 8 is formed by extrusion molding. The cap body 10 covers the groove portion 5, and the lid body 10 extends downward along the side wall of the groove portion 5. A pair of extended fitting members 11 is provided, and two anti-slip claws 12 are formed on the side wall of the groove portion of the fitting member 11.
[0020]
The cap 8 can be used when a groove 13 is formed between access floors as shown in FIG. 2, is easy to attach and detach, and is manufactured by extrusion molding to have an arbitrary length. Therefore, it has the merit of being inexpensive and versatile.
[0021]
FIG. 4 is a partial perspective view showing another example of the cap. In this example, a magic tape (registered trademark) 14 called a hook-and-loop fastener is used as the cap. The hook-and-loop side tape can be omitted from the hook-and-loop fastener by removing a part of the skin layer of the base portion 3 and using the fiber of the felt material 1.
[0022]
By the way, the access floor according to the embodiment of the present invention is bonded to the concrete 9 with an adhesive. At this time, since the entire surface can be bonded, it corresponds to unevenness (floor unevenness), and a conventional access floor. The feeling of walking is also good because it does not rattle like. A floor material (not shown) such as carpet tile is bonded to the upper surface of the base portion of the access floor by a detachable peel-up bond or the like.
[0023]
Moreover, it is possible to cope with the pressure strength for office use (about 300 kg / cm ² ) by increasing the hardness of the felt material 1, and further mixing carbon fiber in the felt material 1. Therefore, it is possible to suppress the generation of static electricity.
[0024]
Thus, in the access floor according to the embodiment of the present invention, the hot melt synthetic resin felt material 1 is impregnated with the thermosetting synthetic resin 2 and hot pressed up and down with a press plate having a groove forming convex portion. As a result, the felt material 1 can be heat-melted, and the thermosetting synthetic resin 2 can be cured, so that the base portion 3, the groove portion 5, and the skin layer 7 can be integrally molded at the same time. It is possible to manufacture a base material that covers a large area at a very low cost.
[0025]
Further, since the access floor has a structure in which the floor material is supported by the entire mat-shaped base portion 3 without providing the conventional leg, the groove portion 5 for storing the wiring cord 4 or the like can be made deep and large. In addition, even when the groove portion 5 is formed deeply, it can be formed to be very thin as compared with the conventional case, and unnecessary flooring can be eliminated.
[0026]
Moreover, since the hardened felt is used as a main constituent material, it is lightweight and can be cut with a cutter knife or the like, so that construction is easy.
As described above, the access floor according to the embodiment of the present invention has been described. However, this access floor does not require an OA floor craftsman and can be constructed by an ordinary carpet craftsman, and can also be post-processed as necessary. If the carpet is turned over, it is possible to easily rearrange the wiring.
[0027]
Further, the felt material is not limited to the heat melting property, and in that case, the groove portion can be formed in advance and another skin layer can be attached.
The synthetic resin 2 is not limited to thermosetting, and other curable synthetic resins can be used.
[0028]
【The invention's effect】
As described above, the access floor of the present invention is formed by impregnating a synthetic resin felt material having a required thickness with a synthetic resin and curing it to form a base portion, and the upper and lower surfaces of the base portion are infiltrated with an adhesive for construction. In the state where the felt material is impregnated with a resin, the felt material is thermally melted by, for example, hot pressing up and down with a press plate having a groove forming convex portion. At the same time, the base resin, the groove and the skin layer can be integrally molded at the same time by curing the synthetic resin, thereby producing a base material covering a relatively large area at a very low cost. It can be used for simple offices such as SOHO and renewal of old buildings.
[0029]
In the access floor of the present invention, the floor material is supported by the entire mat-like base portion without providing a conventional leg, so that the groove portion for storing the wiring cord or the like can be deepened. In addition, even when the groove is deeply formed, it can be made thinner than before, and even if it is difficult to lift the floor, such as existing buildings that are not OA compatible, It can be resolved.
[0030]
Furthermore, since the hardened felt is a main constituent material in the present invention, it is lightweight and can be cut with a cutter knife. This eliminates the need for OA floor craftsmen and makes it easy for ordinary carpet craftsmen. As a result, it is possible to perform the post-processing of the groove portion as required, and when the carpet is turned over, the wiring can be easily rearranged, and so on.
[Brief description of the drawings]
FIG. 1 is a cross-sectional perspective view showing an access floor according to an embodiment of the present invention.
FIG. 2 is a plan view of the access floor according to the embodiment;
FIG. 3 is a partial perspective view showing an example of a cap.
FIG. 4 is a partial perspective view showing another example of a cap.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Thermomeltable synthetic resin felt material 2 Thermosetting synthetic resin 3 Base part 4 Wiring cord 5 Groove part 6 Adhesive for construction 7 Skin layer 8 Cap 9 Concrete 10 Lid body 11 Fitting member 12 Claw 13 Groove 14 Magic tape (registration) Trademark)

Claims (5)

In an access floor laid as a base material under a floor material such as carpet tile, a synthetic resin felt material of a required thickness is impregnated with a synthetic resin and cured to form a base portion. An access floor characterized by the formation of a skin layer that prevents the penetration of construction adhesive. The access floor according to claim 1, wherein a groove portion for embedding a wiring cord or the like is formed in the base portion. The access floor according to claim 2, wherein a plurality of the groove portions are formed in parallel or in a lattice shape. The access floor according to claim 1, 2 or 3, further comprising a detachable cap for closing the groove. The cap includes a lid main body that covers the groove, and a pair of fitting members that extend downward from the lid main body along the side wall of the groove. The access floor according to claim 4, which is formed.

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