Patent ID: 7743572

Claim:
An anti-vibration sound insulator for a suspended ceiling fixed under a floor, wherein the anti-vibration sound insulator comprises: a metal furring devised to be fixed on the suspended ceiling, said furring being formed by a U-shaped metal sheet having a median section fixed to the suspended ceiling and two extremities folded outwardly away from the median section of the U-shaped metal sheet; a central part devised to connect the furring to the floor, said central part comprising: i) a star-shaped element comprising an upper vertical plate provided with an orifice and two lower plates each having extremities, said extremities of said lower plates being folded so as to jointly form a slide rail, said slide rail being sized to receive and support the folded extremities of the metal furring; ii) an insulating element designed to be inserted in the upper plate orifice, said insulating element comprising an other orifice; a rigid element configured to protect the insulating element, said rigid element being sized to be inserted between the upper plate orifice and the insulating element; and means for fixing the central part to the floor, to a joist thereof or to any other building element fixed beneath the floor, said means comprising a fixing element to be inserted in the insulating element orifice in order to fix the star-shaped element to the floor, to the joist or to the other building element fixed beneath the floor.