| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a wooden handrail for stair at a low cost having excellent durability and a stable quality after the installation work even under poor environmental conditions with dense moisture from the surrounding and having a high resistance against warping or twisting. <P>SOLUTION: A laminated lumber formed by a laminated block with a plurality of board-shaped wooden layers are adhered to laminated member which is produced to a handrail for a stair by shaving to finished cross section shape and dimensions of the handrail; in a cross section in a direction perpendicular to the longitudinal direction of the handrail, the adjacent layer of laminated blocks are adhered and formed to non-parallel between adjacent laminated blocks. <P>COPYRIGHT: (C)2004,JPO</p> |
