Self-lock hub unit of lower frame of a foldable playyard

Abstract

The present application provides a self-lock hub unit of the lower frame of the playyard includes a body (10) having a plurality of slots formed at a periphery thereof for receiving tube legs of the playyard and a vertical cavity formed at the center thereof; an actuating member (20) which is vertically movably received in the cavity; two sliding engaging assemblies (30) movably mounted two oppositely positioned tube legs respectively, each sliding engaging assembly having a first member, a second member coupled to the first member for movably coupling the first member to one of the tube legs, and a biasing member disposed in the tube leg to bias the first and second members toward an open end of the tube leg, wherein the two oppositely positioned tube legs are rotatably received in two radially opposite slots of the body respectively; two locking means (16, 17) formed on the body at positions corresponding to the sliding engaging assemblies respectively and having a guiding portion (18, 18′) and an engaging portion (19, 19′); and a strap (40) coupled to the actuating member, wherein the actuating member, the sliding engaging assemblies, and locking means are arranged such that while the tube legs are rotated from vertical position to horizontal position, the second member of the sliding engaging assembly will contact with and guided by the guiding portion of the locking means to engage with the engaging portion of the locking means and thereby locking the tube legs in horizontal position with at least one portion of the first member of the sliding engaging assembly protruding into the central cavity; and while the actuating member is moved upward by pulling the strap, the actuating member will engage with the at least one portion of the first member that protruding into the cavity and push the first member to cause the second member disengaging with the engaging portion of the locking means.

Dependencies are inferred from the claim text.