A collapsible stroller frame assembly which is selectively configurable in an unfolded configuration for carrying a child or infant, and a folded configuration for compact storage or transport in a vehicle, the frame assembly comprising: a front wheel frame with a front wheel assembly; a rear wheel frame with a rear wheel assembly; a lower hinge connecting the front wheel frame to the rear wheel frame in articulated manner, a seat frame hingedly connected to the lower hinge; an upper hinge connected to the seat frame at a position spaced from the lower hinge; a handle frame connected to the upper hinge, a manual release for user actuation; and a mechanical link between the upper and lower hinges; wherein the lower hinge is lockable to hold the seat frame, the front wheel frame and the rear wheel frame in the unfolded configuration, and unlockable to allow relative rotation of the seat frame, the front wheel frame and the rear wheel frame into the folded configuration; and the upper hinge is lockable to hold the handle frame and the seat frame in the unfolded configuration, and unlockable to allow rotation of the handle frame relative to the seat frame into the folded configuration; such that, user actuation of the manual release unlocks the upper hinge for rotation of the handle frame relative to the seat frame, and the mechanical link unlocks the lower hinge in response to a predetermined angular rotation of the handle frame relative to the seat frame.

A transport dolly includes a base and a tongue rotatably mounted to the base. At least one support is mounted to the base. A first cable guide is coupled to the at least one support. A lever is rotatable between a first orientation and a second orientation. A cable has a first portion attached to the tongue. The cable extends from the tongue to the first cable guide, then to the lever. The lever pulls on the cable when the lever is rotated from the first orientation to the second orientation, so as to decrease a distance between the cable first portion and the first cable guide, thereby rotating the tongue from a lowered orientation to a raised orientation. A spring mechanism exerts a force on the lever to prevent rotation of the lever from the second orientation to the first orientation when the tongue is raised.

A foldable cart frame has a folding mechanism, a connecting seat, two rear legs, and a handle unit. The folding mechanism has a base seat, at least one guiding rod connected to the base seat, a sliding seat slidably disposed on the at least one guiding rod, and a linkage assembly moveably connected to the sliding seat. The connecting seat is movably disposed on the folding mechanism. The two rear legs are disposed on the base seat. The handle unit is moveably inserted through the base seat, is fixedly connected to the sliding seat, and can drive the sliding seat and the connecting seat to move. The two rear legs are driven by the linkage assembly. The foldable cart frame can be folded and expanded conveniently and quickly. The connecting seat and its connecting components can form a stable supporting structure after expanding.

A moving carrier is disclosed. A lower-frame assembly includes a first moving member disposed on the guiding member, a second moving member disposed on the guiding member, an elastic member disposed corresponding to the guiding member, and a third moving member disposed on the second moving member. A transmitting member of a front-wheel assembly has a guiding groove. One end of the third moving member is disposed in the guiding groove. When the first moving member moves along the guiding member, the first moving member enables the elastic member to store a first energy. When the elastic member releases the first energy, the second moving member drives the third moving member to move and the third moving member pushes the guiding groove to move, so that the transmitting member can drive the front-wheel frame to move toward the lower-frame assembly.

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.

There is provided a leg folding mechanism, such as a leg folding mechanism for a push chair, the leg folding mechanism comprising a core member having a longitudinal axis and, preferably, first and second axially spaced core guides; a first leg member rotatably mounted on the core member, preferably at the first core guide; a second leg member rotatably mounted on the core member, preferably at the second core guide a shuttle disposed within the core member and moveable within the core member to cause movement of the legs as the shuttle moves within the core.

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 child stroller apparatus includes a rear and a front leg frame respectively having a first and a second side segment, a handle frame having a grip portion and a third side segment respectively connected fixedly with a first and a second joining part that are pivotally connected with each other, a latching mechanism for locking the rear and front leg frames and the handle frame in an unfolded state, and a latch carried with the third side segment. The latch can engage and disengage the first joining part to lock and unlock the grip portion relative to the third side segment. Moreover, a linking part couples the latch to the rear leg frame or the front leg frame so that a folding rotation of the handle frame relative to the rear leg frame causes the latch to disengage from the first joining part.

A folding mechanism for a stroller including a cover, a front leg connector pivoted to the cover, a rear leg connector pivoted to the front leg connector, and a front guard member pivoted to the front leg connector is disclosed. A pair of connection arms extends from the front guard member. The folding mechanism includes a rotatable member pivoted to the cover and detachably connected to the connection arm. An abutting portion protrudes from the rotatable member. When the rear leg connector is unfolding, the rear leg connector abuts against the abutting portion and drives the front guard member rotating relative to the cover to an unfolded position. When the rear leg connector is folding, the rear leg connector is detached from the abutting portion to release the front guard member to a folded position.

A moving carrier includes a body frame connecting device, an adjustment assembly, a body frame, an axle frame, at least one axle and at least one wheel. The adjustment assembly is disposed on the body frame connecting device. One end of the body frame is connected to the body frame connecting device. The relative positions of the body frame and the body frame connecting device are changed by adjusting the adjustment assembly. The axle frame is disposed on the body frame connecting device. The axle is connected to the axle frame. The wheel is disposed on the axle and connected to the axle frame by the axle.