Buffering and Sound-Absorbing Member

Abstract

The object of the present invention is to provide a shock and sound absorbing member having excellent shock and sound absorbing properties for use of a car etc. The shock and sound absorbing member comprises a core panel 2 onto which a plural number of tubular cells 22 are formed lengthwise and widthwise, a base panel 3 being attached to one side of the core panel 2 , and a porous sheet 4 covering the other side of the core panel 2 , the invading sound waves being damped in the tubular cells 22 of the core panel 2 , and then absorbed by the porous sheet 4 , the ventilation resistance of the porous sheet 4 being set to be in the range of between 0.5 and 5.0 kPa·s/m.

1 . A shock and sound absorbing member comprising a core panel onto which a plural number of tubular cells are formed lengthwise and widthwise, a base panel being attached to one side of said core panel, and a porous sheet covering the other side of said core panel, wherein said core panel is made of a thermoplastic resin, the ventilation resistance of said porous sheet being set to be in the range of between 0.5 and 5.0 kPa·s/m. 
     
     
         2 . A shock and sound absorbing member in accordance with  claim 1 , wherein said thermoplastic resin core panel is manufactured by the vacuum and/or pressure forming of a thermoplastic resin sheet. 
     
     
         3 . A shock and sound absorbing member in accordance with  claim 2 , wherein said thermoplastic resin sheet is drawn widthwise to a prescribed degree before said thermoplastic resin sheet is molded by vacuum and/or pressure forming.