초록 ▼

A floor lock assembly for a playpen prevents collapse of the apparatus when it is occupied by a child, whereby a potential safety problem is obviated. In a typical playpen collapsible frame, a lower frame assembly is comprised of a pair of parallel connecting rod units pivotally joined to a pair of

A floor lock assembly for a playpen prevents collapse of the apparatus when it is occupied by a child, whereby a potential safety problem is obviated. In a typical playpen collapsible frame, a lower frame assembly is comprised of a pair of parallel connecting rod units pivotally joined to a pair of crossing rod assemblies. The floor lock assembly extends between the pivoting intersections of the crossing rod units, and includes a pair of rigid linking members extending in opposed relationship from a lock bracket, each linking member pivotally joined to one of the pivoting intersections of the crossing rod units. Each linking member is limited in angular range in its pivoting relationship to the lock bracket, whereby the lock bracket may be supported by the linking members (when the lower frame is in a deployed configuration) in a generally horizontal overcenter disposition beneath a medial portion of the floor panel of the playpen. To collapse the frame, the two pivoting intersections of the crossing rod units must move towards each other as the lock bracket moves upwardly past the overcenter position, and thus the floor panel must moved upwardly with the lock bracket. The weight of a child on the floor panel blocks upward movement of the floor panel, thus also blocking collapse of the frame structure. In the absence of the weight of the child, the lock bracket may be urged upwardly with slight pressure, and the frame collapses without hindrance.

대표청구항 ▼

[ We claim:] [1.] In a collapsible frame structure for a playpen that includes a pair of parallel connecting rod units pivotally joined to a pair of crossing rod assemblies to support a floor panel, the improvement comprising:floor lock assembly means connected between said pair of crossing rod asse

[ We claim:] [1.] In a collapsible frame structure for a playpen that includes a pair of parallel connecting rod units pivotally joined to a pair of crossing rod assemblies to support a floor panel, the improvement comprising:floor lock assembly means connected between said pair of crossing rod assemblies for blocking proximate movement of portions of said pair of crossing rod assemblies during collapse of said frame structure;said floor lock assembly means including a pair of linking members, said linking members including like outer ends and like inner ends;means for connecting each of said outer ends of said linking members to one of the crossing rod assemblies in horizontally pivoting fashion;a lock bracket including means for engaging the inner ends of said linking members in vertically pivoting fashion; and,means for releasably aligning said linking members and lock bracket in an overcenter relationship that blocks proximate movement of said portions of said crossing rod assemblies.