| 摘要 |
PURPOSE: To provide a mat on which assembling and installation of a tread member can be simplified. CONSTITUTION: In a mat 1 containing plural slender rails whose respective ones are arranged in parallel to each other by having a housing part 3 suitable for housing a tread member, the mat has respectively first and second joining elements composed of a T-shaped member 8 and a U-shaped member 6, and the rails are joined to each other by inserting the joining members at least in the substantially vertical direction to the vertical directional axis of a rail 2. |
