| 摘要 |
PROBLEM TO BE SOLVED: To provide a vocal exercise implement, used being inserted into the mouth, enabling marked training achievement by doing vocal exercise suppressing the movement of the tongue and with the structure adjustable to be in the optimal state to the size of the user's mouth. SOLUTION: The vocal exercise implement provided with two right and left poles 1, 1 to be inserted into the mouth, an operation grip 2 whose cross-sectional shape is formed into an approximate semicircle, and a rotary axis 4 on which the front end part of the poles 1, 1 and the both end parts of the operation grip 2 are rotatably fixed is so constituted that a fixing hole 8 into which the rotary axis 4 can be freely inserted is formed on the frond end part of the right and left poles 1, 1, the both end parts of the operation grip 2 are arranged side by side outside the poles 1, 1, and the right and left poles 1, 1 rotate in expanding direction or closing direction in accordance with the rotation of the operation grip 2. COPYRIGHT: (C)2004,JPO
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