| 摘要 |
The objective of the present invention is to form a flooring panel unit having a shape and structure in which the protruding edges of a plastic board which is a lower member are formed to be extended beyond a portion attached to a flooring panel, so that the flooring panel is easily assembled without interference by the protruding edges of the plastic board and, after assembly, the slab level is flush with an adjacent flooring panel within a specific tolerance. In order to achieve this objective, the flooring panel unit (100) comprises an upper member (10) and a lower member (20) wherein the lower member (20) is larger than the upper member (10), the upper member (10) is square or rectangular in shape, and the lower member (20) has a shape that two of the upper members (10) having a square or rectangular shape are superposed, the overlap area (S) thereof has a smaller square or rectangular shape and does not have two symmetrically positioned corners (R). Projections (22) are formed in the entire overlap area (S) and in a protruding edge Q, which is one of the two protruding edges, but not in a protruding edge P, which is the other protruding edge. The upper member (10) is attached by an adhesive (28) to the square or rectangular lower member (20) including the protruding edge P in which the projections (22) are not formed. The protruding edge P and the protruding edge Q have the same width. Since the flooring panel unit is formed as above, the infiltration of moisture into the joints is prevented and the assembled flooring is used semipermanently. Furthermore, assembly is economically efficient because of the simple structure that can be assembled even by an unskilled worker. |
