To provide a soundproofing floor structure which can prevent subduction of a floor surface and realize a favorable walking feeling and which can exert excellent soundproofing performance especially with respect to impact noise.
The soundproofing floor structure A is constituted by placing an elastic body 1 between a floor base 2 and a floor frame 3. A plurality of adjacent projections which are independent of each other are formed on the surface of the floor frame 3 side of the elastic body 1. When a load is imposed downward on the floor base 2, at first, the projection is inflated and projected in the lateral direction without being brought into contact with the adjacent projection and undergoes elastic bulging deformation. When a larger load is imposed on the floor base 2, the adjacent parts 111 of the soundproofing floor structure A are bought into contact with each other and undergo elastic compression deformation.
ARAKANE NORIHIDE
KAJI YOSHIAKI
NAKAGAWA MASAHIRO
