| 摘要 |
<p>PURPOSE:To support a rack plate which has small depth and easily adjust the levelness of the rack plate. CONSTITUTION:A metallic supporter 13 is fixed to a projection 12, projected from the frame 11 of the upright piano, with a bolt 14. The metallic supporter 13 is fixed by clamping the horizontal projection 12 between both upper and lower sides 13A and 13B. The inner end part 15A of the rack plate 15 is clamped with a wood-screw 17 across rack support dowel wood 16 on the top surface of the tip part of the metallic supporter 13. In this case, the rack support dowel wood 16 is sectioned in a desired shape to adjust its levelness corresponding to the curvature of the rack plate 15. Further, an L-shaped metallic supporter is used and a wedge member may be interposed between the horizontal piece and projection.</p> |
