06-11-2014 дата публикации
Номер: US20140327233A1
A foldable frame for a stroller having front and rear legs with wheels disposed at the ends thereof and a handle support joined at a folding mechanism. The folding mechanism synchronizes motion of the front leg and handle to collapse them adjacent to the rear leg. The mechanism also actuates a swivel mechanism on a front wheel that swivels the front wheel to a pre-determined position optimized to allow the stroller to be supported by the wheels when folded. 1. A foldable stroller frame comprising:a frame having a pair of front legs, a pair of rear legs, and a handle;right and left folding mechanisms connecting respective front legs, rear legs, and the handle in a manner to synchronize movement thereof between folded and deployed positions; anda swivel assembly connecting a front wheel to at least one of the pair of front legs, the swivel assembly enabling rotating movement of the front wheel about a generally upstanding swivel axis, the swivel assembly further having a positioner moveable by an actuator in engaging and releasing directions that, when moved in the engaging direction, rotates the front wheel toward a predetermined position, the actuator connecting to at least one of the folding mechanisms to move the positioner to the engaged position when the stroller is moved from the deployed position toward the folded position.2. The foldable stroller frame of claim 1 , wherein the swivel assembly further includes a cam surface encircling the swivel axis claim 1 , fixed in relation and aligned generally orthogonally thereto claim 1 , the cam surface positioned to enable the positioner to contact the cam surface claim 1 , the cam surface sloped between a high point and a low point claim 1 , the positioner making contact with the cam surface when moving in the engaging direction claim 1 , continued movement in the engaging direction causing the cam to rotate until the positioner rests at the low point at which no further movement in the engaging direction is ...
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