Patent ID: 6648868
Filing Date: 2003-11-18
Classification: A61F

Abstract:
A disposable diaper comprising:a cover member having a front waist region, a rear waist region and a crotch region extending therebetween, transversely opposite side edges of said crotch region being curved inwardly so that said cover member has an hourglass-shape when said front waist region, rear waist region and crotch region are laid flat; a liquid-absorbent member having longitudinally opposite ends and composed of a liquid-permeable topsheet, a liquid-impermeable backsheet and a liquid-absorbent core disposed therebetween, said liquid-absorbent member extending on the inner surface of said cover member from said crotch region toward said front and rear waist regions; and belt-shaped elastically stretchable members suspending said liquid-absorbent member from said cover member, said cover member having an elastically stretchable member extending circumferentially of the waist regions and provided along a longitudinal end of at least one of said front and rear waist regions, non-elastic transversely opposite side edges of said crotch region, and transversely opposite side edges of the front and rear waist regions which are connected to each other, said belt-shaped elastically stretchable members circumferentially extending under tension across lower portions of said front and rear waist regions lying immediately above said curved crotch region and spaced longitudinally apart from and below the elastically stretchable member of the cover member, the belt-shaped elastically stretchable members being attached to the cover member only by longitudinally opposite ends of the respective elastically stretchable members which longitudinal opposite ends are bonded to said transversely opposite side edges of the respective waist regions, and the belt-shaped elastically stretchable members being attached to the liquid-absorbent member only by longitudinally middle portions of the elastically stretchable members which longitudinally middle portions are secured to an outer surface of the liquid-impermeable backsheet, said elastically stretchable members being coupled to each other so as to form a continuous loop and the longitudinally opposite ends of the cover member being freely suspended and unconnected from the longitudinal ends of the cover member, and the elastically stretchable member of the waist regions and the elastically stretchable members of the liquid-absorbent member cooperating so that when the diaper is worn, the elastically stretchable members of the liquid-absorbent member prevent the liquid-absorbent member from slipping in the event that the elastically stretchable member of the waist regions slips down on the wearer.