To provide a dynamic damper for a house, which offers an excellent reliability in temperature dependability, amplitude dependability or the like and also is capable of displaying good sound insulating performance against an impact noise caused by a heavy object dropped to a floor. 温度依存性や振幅依存性等の信頼性に優れ、重量床衝撃音の良好な遮音性能をより安定して発揮し得るようにした住宅用ダイナミックダンパを提供する。 - 特許庁