| 摘要 |
PROBLEM TO BE SOLVED: To provide a built-up floor material capable of mutually detachably connecting adjacent floor materials, in the floor material longitudinally-laterally laid on a floor surface.SOLUTION: A floor material is constituted for inserting and locking a connection projection into and on a connection hole in mutual rectangular board-like floor materials, and the connection projection (13) comprises a shaft part (13a) and a slipping-out stop part (13b) on the tip of the shaft part, and the connection hole (14) forms a holding hole part (14a) for inserting the shaft part and locked on the slipping-out stop part, an introduction hole part for insertably-extractably inserting the slipping-out stop part and the shaft part when lifting one floor material from a floor surface, and a communication passage capable of moving the shaft part toward the holding hole part from the introduction hole part. The introduction hole part of the connection hole (14) is constituted of a central introduction hole (14b) deviating in the vertical direction to the holding hole part (14a) and left-right introduction hole parts (14c) (14d) separating in the lateral direction of the central introduction hole part.SELECTED DRAWING: Figure 1 |
