PROBLEM TO BE SOLVED: To provide a scratching detection notification device with a band, the device that is worn on an arm or finger and has a function of efficiently detecting vibration or sound generated in scratching and transmitted through a body to notify the outside of it.SOLUTION: A scratching detection notification device is structured such that a piezoelectric element for detecting vibration or sound is surrounded while keeping a gap in a casing, and the casing is closely fixed with the band. Also, an antenna, a warning device, a substrate mounted with electronic components and a battery that become the additional weighting of a supporting member of the piezoelectric element are molded in the inside of the casing or band in order to prevent generation of parasitic oscillation from becoming noise, and the casing and band are structured such that the piezoelectric element adheres to the surrounding of an opposed skin surface in wearing.COPYRIGHT: (C)2015,JPO&INPIT【課題】 腕または指に装着されて掻破時に発生する体内を伝わる振動または音を効率良く検知し、外部に通知する機能を有するバンド付掻破検知通知装置を提供する。【解決手段】 振動または音を検知する圧電素子が筐体に隙間を保って包囲されるとともに、筐体はバンドと密に固着される構造とした。また、圧電素子の支持部材の付加加重となるアンテナ、警告装置、電子部品の実装された基板、電池は、雑音となる寄生振動を発生を防止するため、筐体内もしくはバンド内にモールドされ、装着時に筐体とバンドは圧電素子が対向する皮膚表面の周囲に密着する構造とした。【選択図】図1
