Patent ID: 8061780

Claim:
A cushion for a seat, including a foam padding integral with a three-dimensional cover covering said padding, said three-dimensional cover comprising: a first surface section; a second surface section spaced apart from said first surface section and facing said first surface section; said second surface section having a pair of spaced apart side portions and an opening defined between said pair of spaced apart side portions; a peripheral surface section disposed between said first and second surface sections, extending along peripheral edges of said first and second surface sections, and attached at edges thereof to said peripheral edges of said first and second surface sections; a substantially belt-shaped piece having a width equal to a total width of said cover and provided at said second surface section so as to openably close said opening of said second surface section; a first pair of zipper tapes; one of said first pair of zipper tapes being provided along one of both side edges of said belt-shaped piece; the other of said first pair of zipper tapes being provided along a first region of said edges of said peripheral surface section which positionally corresponds to the one of said both side edges of said belt-shaped piece; a second pair of zipper tapes; one of said second pair of zipper tapes being provided along the other of the both side edges of said belt-shaped piece; the other of said second pair of zipper tapes being provided along a second region of said edges of said peripheral surface section which positionally corresponds to the other of said both side edges of said belt-shaped piece; a first slider assembly supported by said first pair of zipper tapes for zipping and unzipping said first pair of zipper tapes; and a second slider assembly supported by said second pair of zipper tapes for zipping and unzipping said second pair of zipper tapes; said opening of said second surface section being adapted to be closed with said belt-shaped piece at the time when said first slider assembly and said second slider assembly zip said first pair of zipper tapes and said second pair of zipper tapes, respectively; and said padding being integrated with sections of said cover except said belt-shaped piece.