DROPLET DIFFUSION PREVENTING DEVICE

To prevent droplets from being diffused during a musical performance on a wind instrument.SOLUTION: On an inner peripheral surface of a cylindrical frame body provided detachably atop of an acoustic radiation part, a first groove part into which a tip of the acoustic radiation part is inserted, and a second groove part into which a sheet type filter material is inserted are provided, and the first groove part and the second groove part are provided over the entire circumference of the inner peripheral surface. The first groove part is exposed on a first end surface which is one end surface of the frame body, and the second groove part is provided closer to a second end surface which is an end surface on the opposite side from the first end surface of the frame body than an intermediate position between the first end surface and the second end surface.SELECTED DRAWING: Figure 3 【課題】管楽器の演奏時に飛沫の拡散を防止することができる。【解決手段】音響放射部の先端に着脱可能に設けられる円筒形状の枠体の内周面には、音響放射部の先端が挿入される第１溝部と、シート状の濾材が挿入される第２溝部とが設けられており、第１溝部及び第２溝部は内周面の全周にわたって設けられている。第１溝部は、枠体の一方の端面である第１端面に露出し、第２溝部は、第１端面と、枠体の第１端面と反対側の端面である第２端面との中間位置よりも第２端面寄りに設けられている。【選択図】図３