| 摘要 |
PROBLEM TO BE SOLVED: To provide a drainboard as a floor mat, which is detachably attached to another drainboard without nails and screws, eliminates a danger to soles of persons, imparts degree of freedom in selection and exchange of materials, includes connecting members having a function of preventing corrosion of a rear surface material due to its direct contact with a floor, a function of holding a space between the drainboards, and a function of connecting the drainboards together, and is not only available in water sections such as a bathroom and a veranda but also repeatedly available for various applications such as interior materials, to thereby contribute to effective use of resources. SOLUTION: According to the structure of the drainbaord, a front surface material 1 and a rear surface material 2 each have a semi-through hole at a central portion of a contact surface thereof, and they are detachably connected together by dowel pins. Then, three semi-through holes are formed in each end portion of the rear surface material at locations equally separate from three sides. When the adjacent drainboards are connected together, a connecting member 8 is fitted into one of the three holes and into a hole opposed thereto, of the adjacent drainboard, to thereby connect the adjacent drainboards together. The connecting member is formed of rubber or a resin, has water resistance, and functions to keep the drainboards out of direct contact with the floor surface.
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