| 摘要 |
A tool for training the posture of playing the piano is provided to improve suppleness of the wrists and arms by rotatably installing a knob member. In a tool(100) for training the posture of playing the piano, a knob member(110) comprises a grip unit(112) having one gently curved surface with elasticity and a combining projection protruded in the opposite direction of the curved surface, and a column unit(114) having a screw groove formed on the other side, wherein one side of the column unit is rotatably joined with the combining projection. A lifting member(120) moves up and down the knob member as one end of the lifting member is thread-joined to the screw groove. A rail member(130) is formed like a longitudinal bar and provided with a guide groove(132) slidably combined with the other end of the lifting member in a longitudinal direction and a suction plate(134) installed at the bottom side to prevent a slip in contacting with a support body. |
