SIMPLE STRUCTURE

PROBLEM TO BE SOLVED: To provide a simple structure in which a leader and a flowing fluid passage from the eaves gutter of a roof to the leader are not disposed to the outside and an excellent rainwater draining function is provided. SOLUTION: The simple structure is provided with a roof 1 in which a roof panel 4 is put on rafters 7, 14 descending toward the front side and a column 2 supporting the roof at the front side. The roof 1 has a horizontal gutter 5 receiving rainwater flowing down on the roof panel 4 in the front frame 3 and also has a drain hole 6 at least at one position of the horizontal gutter. The drain hole is positioned above a specified rafter 7. The specified rafter 7 has a hallow auxiliary gutter container 8 in the longitudinal direction, in the inside. An auxiliary gutter 9 is contained in the auxiliary gutter container and attached thereto. A communication hole 10 communicating with the drain hole of the horizontal gutter is formed at the upper face of the auxiliary gutter container. The column 2 has a hollow leader section 11 in the inside in the longitudinal direction and the upper end of the column is connected to the front end of the specified rafter. The front side end 31 of the auxiliary gutter is positioned at the leader section 11. The rear side end 27 of the auxiliary gutter is positioned at the rear side from the communication hole 10. COPYRIGHT: (C)2006,JPO&NCIPI