| 摘要 |
PROBLEM TO BE SOLVED: To provide a natural wooden blade for blinds having a fire-flame proofing effect, free from any distortion and excellent in appearance. SOLUTION: The invention is composed in such a way that a sheet of core material 14 for reinforcement made of natural wood is laminated in a sandwich-like manner between two sheets of exterior material 13 made of natural wood and the layers are connected to each other with an adhesive 3. Furthermore, notches 10 for straightening are made in a front surface 14a and a rear face 14b of the core material while notches 10 for correcting tricks are made in the inner side 15 of the exterior material 13. The core material 14, the exterior material 13 and the adhesive 3 include fire-proofing agent 4. COPYRIGHT: (C)2008,JPO&INPIT
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