Collapsible play yard frame and associated play yard

A collapsible play yard frame, comprising:

• a plurality of frame members interconnected such that the frame is movable between a use configuration and a collapsed configuration, the plurality of frame members including:
• a base segment comprising a plurality of base frame members, a multiplicity of the base frame members extending outward from a locking hub, the locking hub movable between a raised frame unlock position when the play yard frame is in the collapsed configuration and a lowered frame lock position when the play yard frame is in the use configuration,
• the plurality of base frame members forming, at least partly, the base segment of the play yard frame when in the use configuration;
• a set of corner frame members extending upward from the base segment when the play yard frame is in the use configuration;
• a set of upper rails that, in the use configuration, interconnect the corner frame members, each upper rail formed by a pair of upper frame members pivotably connected together by a lockable connection for holding the upper frame members in the use configuration;
• a biasing assembly comprising an elongated elastic component located on the base segment of the play yard frame, externally of the locking hub, wherein the elongated elastic component is connected to at least two of the plurality of base frame members and is configured to bias the locking hub toward the raised frame unlock position by being configured to move from a relaxed state to a stretched state during a transition of the play yard frame from the collapsed configuration to the use configuration.