TECHNICAL FIELDThe present invention relates to a raised floor and, more particularly, to a raised floor with improved structure, where the internal walls, of a plurality of holes provided at the top of the metal base are used as binding parts for being attached by the adhesive of the adhesive layer in order to enhance the binding ability of the adhesive layer for the metal base; and consequently a hard material layer can be firmly attached to the metal base.
BACKGROUNDIn workplaces where computers are commonly used, the arrangement and wiring of different kinds of wires and cables (such as Internet cables) are of great importance. In order to electrify the computers or to connect the computers one with another, wires and cables are necessarily required. However, with the increase of the number of the computers or other computer-related equipments, more wires and cables are required. Accordingly, the arrangement of these wires and cables becomes more complicated and difficult. Exposed wires and cables may not only easily become nuisances, but also will hinder the walking of the staff in the workplaces. Therefore, in a modernized office, it is a tendency to have floors raised in order to provide room for locating the wires and the cables. Besides, the number of the raised floors can be determined elastically according to the size of the internal space of an office.
In order to beautify the raised floors, conventionally, it is common to add a layer of hard material (made of, for example, stone, tiles, or wood) on a raised floor. A conventional raised floor can be formed by means of combining two alloy steel plates together. After the combination of two alloy steel plates is complete, the external surfaces thereof are painted in order to provide the raised floor with refined beauty. Finally, the layer of hard material is attached to the raised floor via adhesives.
However, the biding ability of the adhesives used in the conventional raised floor structure is often insufficient to fix the layer of hard material onto the raised floor due to the poor binding ability of the adhesive layer applied between a layer of metal material and a layer of hard material. Since the raised floor is made by metal material, the layer of hard material may easily slide away from its original position relative to the below raised floor. Moreover, as mentioned above, the raised floor is often painted for the purpose of beauty. The painted surfaces of the raised floor will further weaken the binding ability of the adhesive.
SUMMARY OF THE DISCLOSUREAn object of the present invention is to provide a raised floor with improved structure, where by using as binding parts the internal walls of a plurality of holes provided at the top of the metal base and having the adhesive of the adhesive layer attached thereon, the binding ability of the adhesive layer can be enhanced so as to make a hard material layer more firmly attached to the metal base.
In order to achieve above object, the present invention provides a raised floor with-improved structure comprising a metal base, an adhesive layer, and a hard material layer. The metal base is provided with a space therein and having a top and a bottom. The top of the metal base is provided with a plurality of holes and the internal wall of each hole is a binding part, while the bottom thereof is provided with a plurality of upward recessed parts. The adhesive layer is coated on the top of the metal base. The hard material layer is adhered to the adhesive layer. After the hard material layer is adhered to the adhesive layer, part of the adhesive in the adhesive layer is pressed into the holes and consequently attaches onto the binding parts.
In practice, each binding part preferably includes an extension part extending toward the space in the metal base. Consequently, the extension part can be covered with the adhesive in the adhesive layer.
In practice, the extension part of each binding part preferably forms a bag having a T-shape internal space for receiving the adhesive in the adhesive layer.
In practice, the top of each recessed part is preferably in contact with the top of the metal base. Besides, at least one hole is preferably located between any two locations at which the tops of recessed parts are in contact with the top of the metal base.
The following detailed description, given by way of examples or embodiments, will best be understood in conjunction with the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGSFIG. 1 is a bottom view showing a metal base in a first embodiment of a raised floor with improved structure of the present invention.
FIG. 2 is a top view showing the metal base in the first embodiment of a raised floor with improved structure of the present invention.
FIG. 3 is a cross-sectional view showing the metal base in the first embodiment of a raised floor with improved structure of the present invention.
FIG. 4 is a cross-sectional view of the first embodiment of a raised floor with improved structure of the present invention.
FIG. 5A is a partially enlarged view ofFIG. 4.
FIG. 5B is a cross-sectional view of a second embodiment of a raised floor with improved structure of the present invention.
FIG. 5C is a cross-sectional view of a third embodiment of a raised floor with improved structure of the present invention.
DETAILED DESCRIPTIONPlease refer toFIGS. 1-5A showing a first embodiment of a raised floor with improved structure according to the present invention. The raised floor with improved structure according to the present invention comprises ametal base1, anadhesive layer2, and ahard material layer3.
In this embodiment, themetal base1 is formed by piling aupper metal plate10 on alower metal plate12 and then pressing and fixing the peripheries of the upper andlower metal plates10,12. After themetal base1 is formed, aninternal space14 is defined therein. Besides, the metal base also can be formed in one piece without falling outside the scope and departing from the spirit of the present invention.
Themetal base1 has atop16 and abottom18. Thetop16 is provided with a plurality ofholes160 and the inner wall of eachhole160 is abinding part162. Thebottom18 has a plurality of upwardrecessed parts182.
Moreover, in this embodiment, the top of eachrecessed part182 is in contact with thetop16 of themetal base1. In other words, a plurality ofcontact locations4 is formed on thetop16 of themetal base1. Among theholes160 at least one is located between any twocontact locations4 at which the tops of recessed parts are in contact with thetop16 of themetal base1. However, above arrangement of the holes in this embodiment is only for illustrative purpose and the holes also can be located at other locations on the top of the metal base.
Theadhesive layer2 is coated on thetop16 of themetal base1. In practice, theadhesive layer2 is made by AB glues. Moreover, thehard material layer4 can be made by stones, tiles, wood, or other hard material.
Please refer toFIGS. 4 and 5A. When being placed on and adhered to theadhesive layer2, thehard material layer3 can exert a force to press part of the adhesive of theadhesive layer2 into theholes160 provided on thetop16 of themetal base1 and have the adhesive attached onto thebinding parts162.
Because part of the adhesive of theadhesive layer2 is attached onto thebinding parts162 in theholes160, theadhesive layer2 can be in firmer connection with themetal base1 when the adhesive is solidified. Consequently, it is effective to enhance the binding force between thehard material layer3 and themetal base1 so as to overcome the conventional shortcomings where the hard material layer may easily slides away from its original location because of insufficient binding ability.
Please refer toFIGS. 5B and 5C respectively showing a second and a third embodiment of a raised floor with improved structure according to the present invention. Compared with the first embodiment, the critical difference of the second and the third embodiments is the structure of the binding parts.
As shown inFIG. 5B, in the second embodiment, eachbinding part162 further includes anextension part164. Theextension part164 extends from the inner wall of the hole into thespace14 of themetal base1. When thehard material layer3 is placed on theadhesive layer2, part of the adhesive can further cover theextension parts164. Thereby, the binding ability between theadhesive layer2 and themetal base1 can be enhanced so as to strengthen the connection between themetal base1 and thehard material layer3.
Please refer toFIG. 5C. In the third embodiment, the extension part of each binding part further forms abag166 having a T-shape internal space. By this modification, when thehard material layer3 is placed on theadhesive layer2, the adhesive pressed into the holes can be further attached onto the inner walls of thebags166. Or, thebags166 may even be filled fully with adhesive. By this way, the binding ability between theadhesive layer2 and themetal base1 can be further enhanced so as to strengthen the connection between themetal base1 and thehard material layer3.
As disclosed in above descriptions and attached drawings, the present invention provides a raised floor with improved structure, wherein the internal walls of a plurality of holes provided at the top of the metal base are used as binding parts for being attached by the adhesive of the adhesive layer in order to enhance the binding ability between the adhesive layer and the metal base so as to have a hard material layer firmly attached to the metal base. It is new and can be put into industrial use.
Although the embodiments of the present invention have been described in detail, many modifications and variations may be made by those skilled in the art from the teachings disclosed hereinabove. Therefore, it should be understood that any modification and variation equivalent to the spirit of the present invention be regarded to fall into the scope defined by the appended claims.