Embodiments include strollers having removable seats. An example stroller may include rear wheels, front wheels, and a frame including a handle portion, a rear wheel support portion, a front wheel support portion and a folding mechanism connecting the front wheel support portion and the handle portion in both an unfolded configuration and in a folded configuration. The frame may include a stroller seat support portion positioned at a first vertical position adjacent the handle portion, and a front seat attachment configured for attachment to the front wheel support portion at a second vertical position substantially lower than the first vertical position. The front seat attachment may be configured to support the front stroller seat substantially over the front wheels so that a center of gravity of the stroller system is between the front wheels and the rear wheels.

Embodiments include strollers having removable seats. An example stroller may include rear wheels, front wheels, and a frame including a handle portion, a rear wheel support portion, a front wheel support portion and a folding mechanism connecting the front wheel support portion and the handle portion in both an unfolded configuration and in a folded configuration. The frame may include a stroller seat support portion positioned at a first vertical position adjacent the handle portion, and a front seat attachment configured for attachment to the front wheel support portion at a second vertical position substantially lower than the first vertical position. The front seat attachment may be configured to support the front stroller seat substantially over the front wheels so that a center of gravity of the stroller system is between the front wheels and the rear wheels.

A collapsible or foldable stroller frame is disclosed herein. The stroller frame is configured to be folded into a compact size using a series of connections between a handle portion, front leg portion, and rear leg portion. In one aspect, a basket assembly is also provided that is attached to the stroller frame and is configured to fold into a perimeter defined by the folded stroller frame. In another aspect, an adaptor assembly is provided that allows for a connection or support interface between a carrier and the stroller frame.

A child seat includes a seat portion, a backrest frame pivotally connected with the seat portion, a front guard extending transversally above the seat portion and having a side end portion pivotally connected with the seat portion, the front guard being rotatable relative to the seat portion between an unfolded position and a folded position, and a folding mechanism including a latch connected with the seat portion, the latch being movable relative to the seat portion and the front guard to engage and disengage the side end portion of the front guard, the latch being engaged with the side end portion for locking the front guard in the unfolded position and disengaged from the side end portion for unlocking the front guard.

A stroller with a chassis frame which is supportable on a ground via at least three wheels and having at least two receiving devices, in particular child receiving devices, which can be connected to the chassis frame via adapters, the adapters being designed and positionable on the chassis frame such that, with regard to a connection of the receiving devices as well as their alignment and, if appropriate, their manipulation, they do not allow at least one configuration in which the overall center of gravity of the transport device and receiving devices in top view and thus the overall center of gravity line does not lie within the projection area bounded by the wheels or their standing surfaces, and only permit such that the overall center of gravity of the transport device and receiving devices in top view and thus the overall center of gravity line always lies within the projection area bounded by the wheels or their standing surfaces.

Strollers, wagons and other child carrying devices will typically comprise one or more child seats for transporting a child or children. Each child seat may comprise a child restraint harness system to retain the child safely in the child seat for transporting. Most child seat may accommodate only one child but may have sufficient space to accommodate two children but are not equipped with enough seat belts or other proper restraints. A removable double child seat may be removably attached to the single child seat to convert the single child seat into a double child seat with an appropriate harness system to retain both children safely.

A system for converting an infant child seat to a stroller may include an infant child seat, a wheeled frame, and a handle. The handle is coupled to the infant child seat and configured to manipulate the wheeled frame when the infant child seat is mounted. A wheeled frame, being removably securable to an infant child seat, may include a frame movable between a folded storage configuration and an expanded stroller configuration. The frame is configured to removably receive an infant child seat and includes a plurality of wheels. The wheeled frame does not define a handle. A method of converting an infant child seat including a handle to a stroller may include coupling the seat to a wheeled frame. The method further includes manually actuating, by a first hand of a user, the handle into a stroller position. The seat coupled to the frame are operable as a stroller.

Embodiments include strollers having removable seats. An example stroller may include rear wheels, front wheels, and a frame including a handle portion, a rear wheel support portion, a front wheel support portion and a folding mechanism connecting the front wheel support portion and the handle portion in both an unfolded configuration and in a folded configuration. The frame may include a stroller seat support portion positioned at a first vertical position adjacent the handle portion, and a front seat attachment configured for attachment to the front wheel support portion at a second vertical position substantially lower than the first vertical position. The front seat attachment may be configured to support the front stroller seat substantially over the front wheels so that a center of gravity of the stroller system is between the front wheels and the rear wheels.

Embodiments include strollers having removable seats. An example stroller may include rear wheels, front wheels, and a frame including a handle portion, a rear wheel support portion, a front wheel support portion and a folding mechanism connecting the front wheel support portion and the handle portion in both an unfolded configuration and in a folded configuration. The frame may include a stroller seat support portion positioned at a first vertical position adjacent the handle portion, and a front seat attachment configured for attachment to the front wheel support portion at a second vertical position substantially lower than the first vertical position. The front seat attachment may be configured to support the front stroller seat substantially over the front wheels so that a center of gravity of the stroller system is between the front wheels and the rear wheels.

Foldable strollers with removable seats and related methods are disclosed herein. An example stroller disclosed herein a wheeled frame, a receiver coupled to the frame, and a seat. The seat includes a mount, a lock disposed in the mount; and a handle having an extended positon and a retracted position relative to the seat. The lock is to move from a first position to a second position when the mount is disposed in the receiver to removably couple the seat to the frame, and the lock to move from the second position to the first position to release the seat from the receiver when the handle moves from the retracted position to the extended position.