Abstract: A foldable baby stroller having left and right side front wheel supports with a front wheel mounted to a forward end, and a laterally extending rear axle with a rear wheel mounted to each end. The stroller has left and right side rear wheel supports, each with a lower end attached to the rear axle; and left and right side handle supports with a handle spanning between them. The stroller has left and right side folding assemblies, each having a pair of mounting plates and a guide pivotally attached therebetween. Each folding assembly has a rearward end of one of the front wheel supports fixedly attached between the plates. A forward end of one of the handle supports is pivotally attached between the plates and rotatable relative to the front wheel support. An upper end portion of one of the rear wheel supports is positioned between the plates with an upper end being pivotally attached to the forward end of the corresponding handle support for application of a drive force thereto by the handle support.

Abstract: A foldable baby stroller having left and right side front wheel supports with a front wheel mounted to a forward end, and a laterally extending rear axle with a rear wheel mounted at each end. Further included are left and right side rear wheel supports, each with a lower end attached to the axle; and left and right side handle supports with a handle spanning between them. Also included are left and right side folding assemblies, each having a pair of mounting plates and a guide pivotally attached therebetween. A rearward end of one of the front wheel supports is fixedly attached between each plate pair. A forward end of one of the handle supports is pivotally attached between the plates and rotatable relative to the front wheel support. An upper end portion of one of the rear wheel supports is positioned between the plates and pivotally attached to the forward end of the handle support for application of a drive force thereto.

Abstract: A foldable all-terrain baby stroller with an economical construction. The stroller has a tubular rear axle having left and right wheels mounted thereto and left and right laterally spaced-apart base frame members. The base frame members have flat forward end portions with a notch therein to receive the axle of a front wheel and flat rearward end portions with a hole therein sized to rotatably receive the rear axle. A spacer tube is coaxially mounted on the rear axle between the rearward portions of the base frame members to prevent inward movement thereof. Left and right upright frame members each have a lower end welded directly to the rear axle laterally outward of the rearward end portions of the corresponding left and right base frame members to prevent laterally outward movement thereof on the rear axle.

Abstract: An assembly for converting a three-wheeled baby stroller to a two-wheeled bicycle trailer configuration. The conversion assembly includes an upper frame attachment attached to the upper stroller frame. Left and right support members are connected to a forward portion of the upper frame attachment and extend downward and each have at a lower end thereof an axle extension assembly. This assembly is positioned between the end of the stroller rear axle and the stroller rear wheel to extend the rear wheel base of the stroller to provide increased stability. A tow arm assembly extends from a forward end of the upper frame attachment and at a forward end thereof carries a hitch which clamps to the seatpost of a bicycle. An elongated baseplate is positioned at the forward end of the stroller lower frame and securely clamped thereto.

Abstract: An all terrain baby stroller using an axle assembly that allows the rear wheels to be easily and quickly mounted and removed from the stroller frame without tools. The axle assembly has each rear wheel rotatably mounted on an outward end portion of a stub axle. A tubular rear axle defines a cylindrical interior chamber with an outward end opening sized to slidably receive the stub axle inward end portion therethrough for positioning of the stub axle inward portion coaxially within the interior chamber. When so positioned, a circumferential groove of the stub axle inward end portion is positioned within the interior chamber. The tubular sidewall of the rear axle has an aperture positioned axially inward from the interior chamber outward opening and at a location to coincide with the circumferential groove. A lock pin is carried by a strip spring and is movably disposed in the sidewall aperture for selective movement between an engagement position and a disengagement position.

Abstract: An all-terrain stroller having a pair of rear wheels, each having a receiver fixedly attached thereto for rotation therewith. The receiver has a plurality of circumferentially distributed receiver openings which open inward toward the opposite rear wheel. A pair of brake rods is movably supported by the rear axle of the stroller for lateral movement of each toward and away from one of the receivers under the urging of a coil spring. A foot pedal actuator is rotatable between brake engaged and disengaged positions. The foot pedal carries a cam which moves the brake rods toward and into one of the receiver openings of the corresponding receiver when the brake pedal is rotated to engaged position to lock the rear wheels against rotational movement. The cam permits withdrawal of the brake rods from the receiver openings when the foot pedal is rotated to the disengaged position. The foot pedal is provided with stops to limit rotation of the foot pedal beyond the engaged and disengaged positions.

Abstract: An all-terrain baby stroller using an axle assembly that permits the stroller frame to be collapsible. The axle assembly has a coupler at each end of a tubular axle. Each coupler assembly employs two coupler members, one connected to an upright frame member and the tubular axle, and the other one connected to a horizontal frame member. The couplers are rotatably connected to each other by a hub member. A portion of one coupler rotatably fits within the other coupler, and the hub member extends coaxially through both couplers and allows the one coupler to rotate about it. A stub axle carrying one of the rear wheels is removably received within the hub member. A locking pin is inserted into a hole formed through the stub axle, hub member, an inward one of the couplers, and the tubular axle to releasably retain the stub axle in place. A pair of upper frame members is pivotally connected to the upright frame members and removably connected to the horizontal frame members to permit folding of the frame.