| 摘要 |
PCT No. PCT/JP97/01353 Sec. 371 Date Dec. 15, 1997 Sec. 102(e) Date Dec. 15, 1997 PCT Filed Apr. 18, 1997 PCT Pub. No. WO97/40490 PCT Pub. Date Oct. 30, 1997A method of assembling a grand piano, an outer rim for a grand piano and a manufacturing method thereof, an arm for a grand piano and a fabricating method thereof, and a keyboard musical instrument are provided. The method of assembling a grand piano comprises an outer rim forming step of forming an outer rim, and a part mounting step of mounting to the outer rim, as a base, a plurality of other parts in order to assemble a grand piano. The outer rim of the grand piano is composed of a left flat plate forming a left front linear portion of a grand piano, a right flat plate forming a right front linear portion of the grand piano, and a plurality of arcuate plates mutually having the same radius r, wherein the arcuate plates are joined to connect rear ends of the left flat plate and the right flat plate therethrough to form a curved portion of the grand piano. The arm for a grand piano comprises an arm portion formed in a front end portion of the outer rim and having a predetermined shape matching the arm of the grand piano, and an arm plate 1 having a shape matching the arm portion of the outer rim and fixed to the arm portion. A keyslip of the grand piano is formed with dowels normal to the surface, while the keybed arranged below the outer rim is formed in a front surface thereof with inserting holes for inserting the dowels of the keyslip thereinto. Also, a receiving fitting is arranged in the inserting hole f or sandwiching a dowel when it is inserted thereinto.
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