Maneuverable strollers are disclosed. An example stroller includes a frame that includes an upper frame support, an intermediate frame support, a lower frame support, and a handle coupled to the upper frame support. The example stroller also includes a front wheel coupled to the lower frame support, an intermediate wheel having an axis of rotation, and a rear wheel. The intermediate wheel is located between the front wheel and the rear wheel. The intermediate wheel and the rear wheel are coupled to upper frame support via the intermediate frame support. The example stroller also includes a pivot axis, where the intermediate frame support is coupled to the upper frame support about the pivot axis, and the pivot axis is offset above and forward to the axis of rotation.

Provided are a stroller frame and a stroller. A first rotating shaft and a second rotating shaft are provided at intervals on a stroller folding mechanism of the stroller frame, which is hinged to a handle assembly through the first rotating shaft, and is hinged to one end of a handrail assembly through the second rotating shaft; the handle assembly is hinged to a rear foot assembly through a third rotating shaft, the rear foot assembly is provided with a fourth rotating shaft, and one end of the handrail assembly and one end of a front foot assembly are both hinged to the rear foot assembly through the fourth rotating shaft; and the seat assembly has one side hinged to the handle assembly through a fifth rotating shaft and the other side hinged to the front foot assembly through a sixth rotating shaft.

A baby stroller is provided and includes a stroller frame and a child carrier. The stroller frame includes two supports, a first fixing component, a second fixing component and a locking component. The first fixing component and the second fixing component are fixed on one and the other one of the two supports, respectively, and pivotally connected to each other. The locking component is movably disposed on the first fixing component and configured to engage with the second fixing component for restraining a folding action of the stroller frame. The child carrier is disposed on the stroller frame and pivotable relative to the stroller frame. The child carrier is for providing a releasing force to the locking component for disengaging the locking component from the second fixing component to allow the folding action of the stroller frame during a pivotal movement of the child carrier relative to the stroller frame.

A safety lock includes a releasing component and a locking component. The locking component is movably disposed on a frame releasing component or a stroller frame. The locking component is driven by the releasing component to move relative to the frame releasing component or the stroller frame between a blocking position and a releasing position. The locking component engages with the frame releasing component to restrain the frame releasing component from unlocking the stroller frame or engages with the stroller frame to restrain the stroller frame from being folded when the locking component is located at the blocking position, and the locking component disengages from the frame releasing component to allow the frame releasing component to unlock the stroller frame or disengages from the stroller frame to allow the stroller frame to be folded when the locking component is located at the releasing position.

Maneuverable strollers are disclosed. An example method for manufacturing a stroller includes mounting a front wheel to a frame; mounting a rear wheel and an intermediate wheel to a connector; and mounting the connector to the frame at a pivot axis such that the intermediate wheel is located between the front wheel and the rear wheel and the pivot axis is located between the rear wheel and the intermediate wheel.

Embodiments include, but are not limited to, a stroller with a collapsible frame where an upper end of the side armrest rotatably connected to a slider, the lower end of the side armrest rotatably connected to an upper end of the rear leg set, a middle portion of the rear leg set rotatably connected to a lower end of the handlebar set, the upper end of the rear leg set and the lower end of the side armrest rotatably connected to the upper end of the front leg set, the middle portion of the front leg set rotatably connected to the front end of the seat set, the rear end of the seat set rotatably connected to the lower end of the handlebar set, and the slider capable of sliding along the length of the handlebar set, wheel assemblies, and a locking mechanism, between the handlebar set and the slider.

A device for transporting a child, particularly one that is provided with a collapsible seat. The seat is coupled to the obliquely upward extending first arms by connecting arms which can slide away from the undercarriage in the first arms. This sliding movement takes place automatically after sufficient downward rotation of the second arms.

A child stroller apparatus includes a rear and a front leg frame respectively having a first and a second side segment, and a handle frame having a grip portion and a third side segment that are respectively connected fixedly with a first and a second joining part pivotally connected with each other, the second and third side segments being respectively connected pivotally with the first side segment. A latch is disposed between the first and second joining parts, and can lock the grip portion in an unfolded position relative to the third side segment. A cable has two opposite ends respectively anchored with the grip portion and the third side segment, wraps around a prominent portion provided on one of the first and second joining parts, and is tensioned to bias the grip portion to fold toward the third side segment.

Systems and methods for a stroller with a one-hand collapsing mechanism in accordance with embodiments of the inventions are disclosed. In a first aspect of the present disclosure, a folding stroller includes a collapsible frame, at least one wheel in a front part of the collapsible frame, at least one wheel in a rear part of the collapsible frame, at least one folding hinge coupled to the collapsible frame, a seating area having a seat portion and a back portion, and a release handle in the seat portion of the seating area, the release handle configured to be actuated with a one hand action, wherein the release handle is coupled to the at least one folding hinge, wherein the release handle is accessible through the seating area, and wherein actuating the handle causes the frame to transform from a deployed position to a collapsed position.

A transportation device includes a handle a rear leg, a front leg, a seat, a fixing member, a first seat linkage member and a second seat linkage member. The front leg is pivotally connected to the rear leg. The seat is pivotally connected to the front leg. The fixing member is disposed at a rear side of the seat and connected to an end of the handle. The first seat linkage member is pivotally connected to the seat and the fixing member. The second seat linkage member is pivotally connected to the seat and the rear leg. When the handle, the rear leg and the front leg are folded with respect to each other, the fixing member and the rear leg drive the rear side of the seat to rotate toward a direction opposite to the ground by the first seat linkage member and the second seat linkage member respectively.