| 摘要 |
<p>PROBLEM TO BE SOLVED: To maintain favorable appearance quality even when stairs are made in the split structure. SOLUTION: Unit stairs 10 are constituted by mutually connecting upper stairs 12 and lower stairs with stringers, which are connected with a joint 28. This joint 28 is arranged within a hidden space 30 divided by a tread 20 and a riser 26. A part of the joint 28 exposed only when seen from above (P point) is hidden by arranging a decorated frame 32. Thus, a user of stairs does not see the joint 28, and a favorable appearance quality can be maintained.</p> |
