Patent ID: 6682090
Filing Date: 2004-01-27
Classification: B62B

Abstract:
A foldable stroller comprising:left and right front legs having pivot ends; left and right rear legs disposed rearwardly of said front legs and having pivot ends; a U-shaped handle including left and right handle tubes that have mounting ends; a pair of joints fixed respectively on said mounting ends of said handle tubes, said pivot end of each of said front legs and said pivot end of each of said rear legs being pivoted to a respective one of said joints about first and second pivots, respectively, said first and said second pivots being parallel to each other; a pair of linking rods respectively interposed between and pivotally connected to said left front and rear legs below said first and second pivots, and said right front and rear legs below said first and second pivots in such a manner that said left and right front and rear legs and said handle tubes are movable relative to one another between a storage position, in which, said front legs and said handle tubes are foldable onto said rear legs so as to result in a minimum storage space, and a position of use, in which said front legs and said handle tubes are moved away from said rear legs; and a first locking unit for releasably locking said rear legs onto said handle tubes so as to prevent folding of said handle tubes onto said rear legs when said front and rear legs and said handle tubes are disposed in said position of uses wherein each of said pair of joints has a mounting body fixed on said mounting end of respective one of said handle tubes, and a pair of ears extending frontwardly from said mounting body and defining a gap therebetween for receiving said pivot end of the respective one of said front legs, said mounting body being formed with a tube-mounting hole to permit insertion of said mounting end of the respective one of said handle tubes fittingly therein, said mounting body having a bottom wall that is formed with a recess for receiving said pivot end of the respective one of said rear legs, said recess being defined by a recess-confining wall which is formed with a shaft-engaging hole, each of said rear legs being hollow, said second locking unit including a spring-loaded shaft disposed within a respective one of said rear legs, and having an upper end extending into and releasable engaging said shaft-engaging hole when said left and right front and rear legs and said handle tube are moved to said position of use, said shaft being movable against biasing action so as to move said upper end outwardly from said shaft-engaging hole and so as to permit folding of said handle tubes onto said rear legs.