Collapsible multi-use baby carriage

Claim 1

A collapsible multi-use baby carriage comprising: a) a seat having first opposite sides each provided with an upper surface with an intermediate projecting surface and extending upward from the seat; b) a backrest pivotally connected with the seat, the backrest having second opposite projecting sides with a front surface complementary to the upper surface of each of the first opposite sides of the seat; c) front and two rear caster assemblies pivotally connected to the seat, so as to be movable between extended positions wherein said caster assemblies extend below said seat and retracted positions wherein said caster assemblies are retracted into the first opposite sides, each of said caster assemblies including a pair of leg members, a transverse arm connecting the pair of leg members, and a pair of link arms, each link arm having an upper end pivotally connected to an underside of said seat and a lower end rigidly connected to a respective leg member at a midpoint thereof, and a spring biased latch associated with each caster assembly which includes a pivotal plate member having a user actuator portion located in an open recess formed within forward and rearward ends of said seat and a hook portion for engaging said transverse arm for releasably locking said caster assembly in the extended position; d) a U-shaped hand rest connected to said backrest and having: a front housing tube; a winding tubular shaft located in said front housing tube; a windable support plate having an inner end clamped to the winding tubular shaft so as to be wound on said winding tubular shaft; a first ratchet connected to a second end opening of said winding tubular shaft; a support rod connected to a first end opening of said winding tubular shaft; side caps connected in end openings of said front housing tube two telescopically adjustable side tubes connected between said side caps and said backrest, each respectively consisting of a front tube and a rear tube latched together by means of a steel ball urged by a spring in the front tube so as to engage one of a plurality of ball holes in the rear tube e) a U-shaped handle for pushing the carriage, connected to the backrest by a second ratchet so as to allow angular adjustment of the U-shaped handle relative to the backrest; f) a chamber provided in each of said first opposite sides of said seat to accommodate said caster assemblies in their retracted positions; g) a locking member provided on a rear upper surface of each said first opposite sides of said seat and having a plurality of spaced apart grooves; h) movable rods located on each backrest for engaging one of the plurality of spaced apart grooves; i) control ropes provided in the backrest; each having an end connected to a movable rod such that said movable rods are pulled up by the ropes disengaging the movable rods from the spaced apart grooves such that the relative angular positions of the seat and the backrest can be adjusted enabling said baby carriage to be transformed into a dining chair, a safety seat, a cradle, a bed, or to be collapsible for carrying.