Foldable stroller
AssigneeGraco Children's Products Inc.
InventorsCurtis M. Hartenstine, Daniel N. Newhard, Matthew J. Ransil
Life of this patent
Estimating the term…
Abstract
A stroller having a novel frame geometry that provides a more direct structural tie between the front and the rear wheels. The two rear legs (bottom members) of the frame are disposed at a relatively small angle to the horizontal and remain close to that shallow angle as the stroller is folded, with all four wheels on the ground. The rear leg assembly is pivotally linked to the front leg assembly, so that the front leg assembly collapses onto the rear leg assembly when the stroller is folded. The front legs and the rear legs preferably have a similar profile so that they generally nest when folded. The front legs and the rear legs preferably have oval or oblong cross-sections, which enhances their vertical load strength.
Claims30
A stroller, foldable between an open position and a folded position, comprising a frame and front and rear wheels supporting the frame, wherein the frame has left and right sides, each side comprising:
- an elongated bottom member having a front portion in proximity to a front wheel and a rear portion in proximity to a rear wheel;
- a front leg pivoted to the front portion of the bottom member, extending upwardly and rearwardly therefrom when the stroller is in the open position, and terminating in an upper end;
- a push arm having a lower end in proximity to the upper end of the front leg, and extending upwardly and rearwardly therefrom when the stroller is in the open position;
- and
- a support strut pivoted to an intermediate portion of the bottom member, extending upwardly therefrom when the stroller is in the open position, and terminating in an upper end in proximity to at least one of the upper end of the front leg and the lower end of the push arm,
- wherein the front leg, the push arm, and the support strut pivot relative to each other when the stroller moves between the open position and the folded position.
A stroller frame having left and right sides, each side comprising:
- an elongated bottom member having a front portion and a rear portion;
- a front leg connected to the front portion of the bottom member, extending upwardly and rearwardly therefrom, and terminating in an upper end;
- a push arm having a lower end in proximity to the upper end of the front leg and extending upwardly and rearwardly therefrom;
- and
- a support strut connected to and extending upwardly from an intermediate portion of the bottom member and terminating in an upper end in proximity to at least one of the upper end of the front leg and the lower end of the push arm.
Dependencies are inferred from the claim text.