part comprising a star shaped element having an upper vertical plate provided with an orifice and two lower plates each having extremities these extremities are folded so as to jointly form a slide rail sized to receive and support the folded extremities of the metal furring the central part also comprises an insulating element devised to be inserted in the upper plate orifice this insulating element including an orifice this latter orifice allows introducing a fixing element so as to fix the insulator beneath a floor or against a joist supporting the floor application_number US 71908005 A description as illustrated in fig1 the invention relates to an anti vibration sound insulators 1 devised to be installed between a suspended ceiling 3 and a floor 5 the sound insulators according to the present invention comprise metal furrings 7 devised to be fixed conjointly parallel to the upper surface of the suspended ceiling 3 the general principle of the invention is illustrated in fig2 where the anti vibration sound insulator 1 according to the invention is used to suspend a suspended ceiling 3 immediately under a floor 5 the insulator being directly fixed between the floor and the ceiling the material constituting the ceiling 3 may be any material commonly used for the manufacturing of such a ceiling such as gypsum wood acoustic tiles or any other decorative facing the floor 5 under which the ceiling 3 is suspended may also be made of any standard material such as concrete cement wood steel or any other.