Patent ID: 7401803
Filing Date: 2008-07-22
Classification: B62B

Abstract:
1. A stroller comprising at least a folding means, a direction switch and wheel retraction means, a brake means and a seat assembly, the folding means being located above the direction switch and wheel retraction means, the brake means being located below the direction switch and wheel retraction means, the seat assembly being located between the folding means and the direction switch and wheel retraction means, wherein: the folding means includes a sliding sleeve assembly, an upper rack, a bracing bar, a rear wheel rack, an arched rib, a second rotary joint, a third rotary joint and a fourth rotary joint; the upper rack having two ends coupled respectively with a first rotary joint and the sliding sleeve assembly, the first rotary joint being connected to one end of the bracing bar, the bracing bar having other end connecting to the third rotary joint, a front wheel rack having one side coupled with front wheels and another side connecting to the turnable third rotary joint, the arched rib having one side connecting to the third rotary joint and another side connecting to the fourth rotary joint which is turnable and slidable on a rear wheel rack; the direction switch and wheel retraction means includes the rear wheel rack, the arched rib, the second rotary joint, the third rotary joint and the fourth rotary joint; the rear wheel rack having one side coupling with rear wheels and another side coupling with the second rotary joint which is turnable and slidable on the front wheel rack, the arched rib having one side connecting to the third rotary joint and another side connecting to the fourth rotary joint; the brake means includes a brake pulling bar assembly, a latch member, a sliding seat, a bucking strut, a brake gear, a sync bar, a plurality of fastening elements and a cable; the brake pulling bar assembly being mounted onto the upper rack and connected to the latch member through the cable, the latch member being connected to the sliding seat through the fastening elements, the bucking strut being located in the sliding seat and wedged in the brake gear on the front wheels to accomplish braking effect; and the seat assembly includes a cross coupling hub, a guarding handle, a seat rack and the first rotary joint; the cross coupling hub being inserted in the first rotary joint, and the guarding handle and the seat rack being inserted in the cross coupling hub.