Patent ID: 7947029

Claim:
An underpants type disposable diaper cover, comprising: a front body part and a back body part which are formed in such a manner as to be continuous with each other at a crotch portion and both side portions, thereby creating a waist opening and a pair of right and left leg openings; an absorbent pad which is detachably attached to an inner surface thereof; a plurality of waist portion-elastic members spaced in a longitudinal direction, reaching from one side to the other side along the waist opening in the front and back body parts; a plurality of curved elastic members spaced without intersecting each other in each of the front and back body parts, which extend from an upper level with respect to a middle level in a longitudinal direction on one side in a lateral direction, to an upper level with respect to a middle level in the longitudinal direction on the other side in the lateral direction, and extend so as to be curved toward the crotch portion with increasing closeness to a central portion in the lateral direction; and a curved portion of at least one of the curved elastic members configured in the front body part as to pass on both sides with respect to an upper end portion of the attached absorbent pad; and wherein the curved elastic members are arranged in the back body part such that central tip portions of the curved portions therein project in a direction that becomes distant from the crotch portion.