Patent ID: 8167332
Filing Date: 2012-05-01
Classification: B62B

Abstract:
1. A folding stroller, which has a first side and a second side, the folding stroller comprising: a first fore strut, located on the first side, a first fore wheel being disposed on a bottom end of the first fore strut; a first aft strut, located on the first side, a top end of the first aft strut being pivotally connected to the first fore strut, a first aft wheel being disposed on a bottom end of the first aft strut; a second fore strut, located on the second side, a second fore wheel being disposed on a bottom end of the second fore strut; a second aft strut, located on the second side, a top end of the second aft strut being pivotally connected to the second fore strut, a second aft wheel being disposed on a bottom end of the second aft strut; a first sliding member, slidably disposed on the first aft strut, the first sliding member being slidable between its first position and its second position; a second sliding member, slidably disposed on the second aft strut, the second sliding member being slidable between its first position and its second position; an aft double bar linkage, comprising a first aft bar and a second aft bar, a top end of the first aft bar being pivotally connected to the first sliding member, a bottom end of the first aft bar being pivotally connected to a predetermined position of the second aft strut, the predetermined position of the second aft strut being located between the second sliding member and the second aft wheel, a top end of the second aft bar being pivotally connected to the second sliding member, a bottom end of the second aft bar being pivotally connected to a predetermined position of the first aft strut, the predetermined position of the first aft strut being located between the first sliding member and the first aft wheel; a fore double bar linkage, comprising a first fore bar and a second fore bar, a rear end of the first fore bar being pivotally connected to the first sliding member, a front end of the first fore bar being pivotally connected to the second fore strut, a rear end of the second fore bar being pivotally connected to the second sliding member, a front end the second fore bar being pivotally connected to the first fore strut; a first linking bar, a front end of the first linking bar being pivotally connected to the first fore strut, a rear end of the first linking bar being pivotally connected to the first sliding member; a second linking bar, a front end of the second linking bar being pivotally connected to the second fore strut, a rear end of the second linking bar being pivotally connected to the second sliding member; wherein the first sliding member and the second sliding member bunch the fore double bar linkage and the aft double bar linkage up when the first sliding member and the second sliding member move upward to their first positions, so that the first fore strut and second fore strut are closed up, the first aft strut and the second aft strut are closed up, the first sliding member and the second sliding member make the first linking bar and the second linking bar swing simultaneously, so that the fore wheels and the aft wheels are closed up; wherein the first sliding member and the second sliding member unfold the fore double bar linkage and the aft double bar linkage when the first sliding member and the second sliding member move downward to their second positions, so that the first fore strut and the second fore strut are opened up, the first aft strut and the second aft strut are opened up, the first sliding member and the second sliding member make the first linking bar and the second linking bar swing simultaneously, so that the fore wheels and the aft wheels are opened up.