Patent attributes
An infant playpen apparatus includes a playpen frame having two opposite side frame portions, two rail structures respectively affixed with the two side frame portions, a support platform operable to detachably assemble with the rail structures, and two coupling structures connected with the support platform and operable to respectively assemble with the rail structures. At least one of the coupling structures includes a latch that can lock an assembly of the support platform with the rail structure, and unlock the assembly of the support platform with the rail structure for removing the support assembly from the rail structure. The playpen apparatus can further include a bassinet held with the playpen frame. The support platform can slide along the rail structures between a first position where the support platform substantially uncovers the bassinet, and a second position where the support platform lies above and substantially overlaps with the bassinet.