| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a whistle which allows teeth to be stable, is not too thick to hold in a mouth, and is not crashed by biting, while realizing an necessary loudness and quick starting in a large stadium. <P>SOLUTION: A whistle comprises: a mouthpiece section having an air supply hole and an air supply path; an embouchure communicating with the air supply path of the mouthpiece section; and a resonance section having a vibration generating edge and a resonant chamber. The resonance section is formed of a resin while the mouthpiece section is formed by integrally molding an elastic resin on the outer periphery of a metal sleeve having the air supply hole and the air supply path. <P>COPYRIGHT: (C)2012,JPO&INPIT |
