Importance

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Abstract

A child enclosure including a hub member including a crank link, a substantially four bar linkage articulated link operably connected to the crank link, a push rod connected to the substantially four bar linkage articulated link so that linear movement of the crank link effects, through the substantially four bar linkage articulated link, a linear driving motion of the push rod, a side structure having a plurality of side posts a rack assembly movably coupled to the side post, the rack assembly includes a gear rack that is coupled with an upper end of the push rod so as to reciprocate with the linear driving motion of the push rod and extend and retract the rack assembly, an upper assembly having upper arms, each upper arm being pivotally coupled to a respective side post.

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First Claim