| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an inner rim of a grand piano with which the sure and well maintenance of appearance is made possible, bend molding is well and easily executable and a production cost is reduced in spite of machining an outer peripheral surface. SOLUTION: This inner rim 1 of the grand piano is composed of plural wooden veneers 1a which are stacked and adhered on and to each other and subjecting these wooden veneers to bend molding so as to meet the outer peripheral surface shape of the grand piano. Among the plural wooden veneers 1a, a prescribed number of the wooden veneers on the outside surface side of the inner rim 1 are composed of the laminated plates 2 stacked on each other in such a manner that their figured grains extend respectively in the longitudinal direction of the inner rim 1. The prescribed number of the wooden veneers on the inside surface side are composed of plywood 3 superposed in such a manner that the figured grains thereof extend alternately in orthogonal directions.</p> |
