| 摘要 |
PURPOSE:To suppress deformation of spare tire house thus to suppress vibration and noise, by forming beads in the longitudinal direction of the spare tire house while filling the inside of beads with acoustic material. CONSTITUTION:At the upper position at the lowermost end 4a of the bottom wall 4 of a spare tire house 5, beads 8 are formed in the longitudinal direction of the spare tire house. At the inside of said beads 8 or the containing space 6 is filled with coal tar system acoustic sheet 10 known as Mersheet. With such structure, even when riding over an edge stone the deformation of the bottom wall 4 of the spare tire house 5 can be suppressed of the face rigidity improved by the beads 8, without sacrifice of take-out work of the spare tire T. Furthermore the acoustic sheet will suppress vibration and noise. |
