| 摘要 |
PROBLEM TO BE SOLVED: To easily fix parts, such as cables and circuit boards, without using secondary members, exclusive of musical instrument functions, and without complicating the structure of metallic molds for molding. SOLUTION: An upper supporting piece 36 of a pair of supporting pieces 36 and 37 of a parts supporting section 35 is formed in a white key-connecting and fixing section 15 of a white key 11 and the lower supporting piece 37 is formed in a black key-connecting and fixing section 19 for a black key 12. A pair of these supporting pieces 36 and 37 are disposed to face each other one above the other. Then, there is no need for using the secondary members, exclusive of the musical instrument functions, and the parts, such as cables, may be easily fixed to the parts supporting section 35. The structures of a lower case 1a and the metal molds for molding the same are simplified and even more, the complication of the structures of the respective metal molds for molding the white key 11 and the black key 12 is averted and the simple structure may be obtained. |
