Abstract: A lightweight two-wheeled trailer with demountable bicycle type wheels, a removable flexible cloth-like seat, removable upper and lower flexible (and at least partially light-transmitting) weather covering, a removable tow arm and a collapsible frame assembly. The frame assembly includes a structural tubular frame supporting removable wheels with the axles canted so that the wheels are downwardly divergent relative to the ground. The frame assembly includes generally U-shaped support with first and second upright articulated rear tube assemblies coupled intermediate the support and the frame, the tubular members of the frame assembly being configured and dimensioned to define a seating area for one or more infants or toddlers. A depending generally U-shaped tubular ground brace is affixed to the front bar of the support frame, to serve both as ground support (when needed), as well as to define a foot well area for the occupants.

Abstract: A three-wheeled jogging stroller with demountable wheels, a removable cloth-like seat and a collapsible frame assembly. The frame assembly includes a primary structural rear axle assembly having a member of an enlarged diameter tubular construction with couplers at opposite ends thereof for supporting demountable or removable large diameter spoked wheel pneumatic tires with the axles thereof canted so that the wheels are downwardly divergent relative to the ground. The rear axle assembly has pivotally coupled thereto a pair of upright support members and a fork assembly. A pair of generally parallel fork members support the removable front wheel at one end thereof, while at the other end, the fork members are pivotally coupled to the rear axle member by means so that the pivotable coupling is displaced, or offset, a given distance from the axis of the rear axle member so that, on folding, the fork and the upright support members are generally parallel to one another.

Abstract: A three-wheeled jogging stroller with demountable wheels, a removable cloth-like seat and a collapsible frame assembly. The frame assembly includes a primary structural rear axle assembly having a member of an enlarged diameter tubular construction with couplers at opposite ends thereof for supporting demountable or removable large diameter spoked wheel pneumatic tires with the axles thereof canted so that the wheels are downwardly divergent relative to the ground. The rear axle assembly has pivotally coupled thereto a pair of upright support members and a fork assembly. A pair of generally parallel fork members support the removable front wheel at one end thereof, while at the other end, the fork members are pivotally coupled to the rear axle member by means so that the pivotable coupling is displaced, or offset, a given distance from the axis of the rear axle member so that, on folding, the fork and the upright support members are generally parallel to one another.