Patent ID: 7445230

Claim:
A baby carriage that is foldable from an open state to a folded state so as to be reduced in a width dimension of the baby carriage in a width direction, comprising: a body frame including a seating surface supporting member, and a pair of side upright frame members extending to rise upward respectively from two sides of a rear end region of said seating surface supporting member; a seat hammock including seating surface sheet part extending over said seating surface supporting member, and a backrest sheet part connected to a rear edge of said seating surface sheet part and extending between said pair of side upright frame members, and a core arranged inside said seat hammock and continuously extending from said seating surface sheet part to said backrest sheet part, wherein said core comprises a single flat plate that continuously includes a seating surface core arranged inside said seating surface sheet part, a back surface core arranged inside said backrest sheet part, and at least one concave portion respectively forming a bending point of said flat plate between said back surface core and said seating surface core, wherein said back surface core extends in said width direction over a whole width of said backrest sheet part inside said backrest sheet part of said seat hammock, wherein said back surface core is not bent in said width direction when said baby carriage is in said folded state, wherein a width dimension of said back surface core is larger than a distance between the pair of side upright frame members in said folded state of the baby carriage, and wherein said backrest sheet part including said back surface core therein is positioned behind the pair of side upright frame members in said folded state of the baby carriage.