| 摘要 |
PURPOSE: A fixing apparatus for a piano tuning pin is provided to stably fix the piano tuning pin by inserting the piano tuning pin into a fixing hole extending from an upper center portion of a wood bushing to a pin block. CONSTITUTION: A plurality of insertion holes(13) is formed on a frame(11), which is integrally formed with an underside of a pin block(12) including a plurality of material woods. The insertion holes(13) are defined by spiral walls. A plurality of wood bushings(14) is positioned in the insertion holes(13). The wood bushings(14) are press-fitted into the insertion holes(13) by striking the wood bushings(14) using a weight member. Thus, spiral patterns(14a) are formed at outer walls of the wood bushings(14) due to spiral walls of the insertion holes(13) so that the wood bushings(14) are securely maintained in the insertion holes(13).
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