PURPOSE: To eliminate the need for the adjustment of before and behind positions of attaching fittings at each installation of exterior wall boards by easy alignment of inserting holes of a bearing board with the exterior wall boards at the time of attaching the exterior wall boards.
CONSTITUTION: Backup members 16, 17 are provided projected to upper and lower sections from height positions, where bearing boards 14 are installed on the backing wall surface 4 of a building. The rears of exterior wall boards 1 are abutted against the backup members 16, 17 after positions, where the exterior wall boards 1 are projected and retread before and behind, are determined, fixing members 15 are inserted into the inserting holes 13 of the bearing boards 14 and the upper attaching grooves 2 of the exterior wall boards 1.
MIYAWAKI TADASHI
SATO HIDENOBU
