Patent ID: 6224077
Filing Date: 2001-05-01
Classification: A47D

Abstract:
A baby walker comprising:a chassis;a bracket table; anda lifting gear means for elevating said bracket table relative to said chassis, said lifting gear means comprising:two pairs of parallel links each having one end pivotally attached by a shaft pin to said chassis and an opposite end pivotally attached by a shaft pin to said bracket table, each of said two pairs of parallel links comprising:a first link;a second link;a secured wedge piece fixed onto said first link, said secured wedge piece having a wedge phase with a wide end;a slide having a rod slot slidably affixed to said second link, said slide having a wedge phase corresponding to said wedge phase of said secured wedge piece, said slide being resiliently urged by a spring toward said wide end of said wedge phase of said secured wedge piece; anda locking gear positioned between said first and second links so as to control a distance between said first and second links and to control a height of said bracket table with respect to said chassis, said locking gear comprising:a lock catch having a ""U""-shaped slot moveably positioned on said first link, said lock catch having a pair of clip panels disposed on said first link, said pair of clip panels having respective shaft holes extending therethrough;a brake piece having a pair of shafts pivotally received by respective said shaft holes of said pair of clip panels;a pair of brake gears coupled with said brake piece at one end of said brake piece;a swing bar protruding from an opposite side of said brake piece; anda secured draw bar coupled to said swing bar, said slide having a hook slot coupled to a hook affixed to said lock catch, said draw bar being coupled to said lock catch and said slide such that a height of said bracket table is adjustable relative to movement of the wedge phases with respect to each other.