Abstract: A convertible bicycle trailer and jogging stroller for two children comprises a frame with a rear axle end for supporting two large diameter wheels and a front fork end removably supporting alternatively a front wheel for use in the stroller mode and a trailer cycle hitch assembly attachable to the frame portion of a cycle for use in the trailer mode. The frame has a rigid plastic molded shell which is conformed into a side-by-side two child holder seat portion with side, rear and front portions for substantially enclosing two children and being fastened to the frame. The side portions are configured as side fenders for covering upper portion of the two large wheels. A removable handle is attachable to the rear portion of the sise fenders for use in the stroller mode. The trailer and stroller combination further includes a roll bar and a protective canopy to add further protection of the children.

Abstract: A collapsible infant stroller that has an elevated contractible lower frame portion having a rear end, an intermediate portion and a front end. A contractible upper frame portion is provided with a lower end pivotally attached to the lower frame portion and extending downwardly therefrom and supporting two front wheel assemblies, an intermediate seat portion supporting a flexible infant seat and an upper handle end. A stabilizer strut is connected to the lower frame portion and the upper frame portion to secure the frame portions together for safe and smooth carrying of an infant. A rear strut pivotally connects the upper frame portion and the lower frame portion and extends downwardly from the lower frame portion for supporting rear wheel assemblies.

Abstract: A collapsible jogging infant stroller that has a contractible lower frame portion having a rear end supporting two wheels, an intermediate portion and a front fork end supporting a front wheel. A contractible upper frame portion has a lower end pivotally attached to the lower frame portion and an upwardly and rearwardly extending intermediate seat portion supporting a flexible infant seat holder and an upper handle end. A stabilizer strut is connected to the lower frame portion and the upper frame portion to secure the frame portions together for safe and smooth carrying of an infant. A releasable locking means secures the stroller in its upright erect position for use, and when released, permits contraction of the upper and lower frame portions inwardly upon themselves as to move the stroller to a collapsed condition for transportation and storage.

Abstract: An infant stroller convertible to an infant trailer towable behind a cycle includes a tubular frame having a lower frame portion and an upper frame portion. The upper frame portion supports a flexible infant holder or seat. With the front wheel removed, the stroller becomes a trailer when connected to a cycle by a quick release trailer-cycle hitch assembly. The assembly includes a fork plate, yoke portion and bicycle hitch end which safely and securely interconnects the trailer to the bicycle frame.

Abstract: A collapsible jogging infant stroller that has a contractible lower frame portion having a rear end supporting two wheels, an intermediate portion and a front fork end supporting a front wheel. A contractible upper frame portion has a lower end pivotally attached to the lower frame portion and an upwardly and rearwardly extending intermediate seat portion supporting a flexible infant seat holder and an upper handle end. A stabilizer strut is connected to the lower frame portion and the upper frame portion to secure the frame portions together for safe and smooth carrying of an infant. A releasable locking means secures the stroller in its upright erect position for use, and when released, permits contraction of the upper and lower frame portions inwardly upon themselves as to move the stroller to a collapsed condition for transportation and storage.

Abstract: A foldable infant trailer is convertible into an infant trailer towable behind a cycle. The convertible stroller and trailer includes a tubular frame having a lower frame portion and an upper frame portion. The upper frame portion supports a flexible infant holder or seat. The upper frame portion is also foldable down upon the lower frame portion. With the front wheel removed, the stroller becomes a trailer when connected to a cycle by a trailer-cycle hitch assembly. The assembly includes a fork plate, yoke portion and bicycle hitch end which safely and securely interconnects the trailer to the bicycle frame.

Abstract: A foldable infant trailer is convertible into an infant trailer towable behind a cycle. The convertible stroller and trailer includes a tubular frame having a lower frame portion and an upper frame portion. The upper frame portion supports a flexible infant holder or seat. The upper frame portion is also foldable down upon the lower frame portion. With the front wheel removed, the stroller becomes a trailer when connected to a cycle by a trailer-cycle hitch assembly. The assembly includes a fork plate, yoke portion and bicycle hitch end which safely and securely interconnects the trailer to the bicycle frame.

Abstract: A lightweight infant stroller is provided for carrying an infant while walking or while walking, running or jogging at a faster than walking pace. The stroller includes three large diameter wheels arranged in a tricycle configuration, a lightweight foldable frame to which the wheels are attached and an infant holder made from a flexible material supported by the frame. The frame includes pivotally connected upper portion and a lower portions, whereby the portions may be folded against one another so the stroller occupies a minimum space during transport or storage. The rear wheels are removably attached to the frame; they may be removed completely for storage and, for use, the distance between the rear wheels may be selectively varied to enhance stability.