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.

There is provided an adjustable infant carrier comprising: a backrest for supporting the upper body of an infant, the backrest having a front side and a rear side; a support shaft arranged at the rear side of the backrest; a harness assembly comprising at least one plate member arranged on the front side of the backrest; and a releasable locking mechanism positioned between the at least one plate member and the support shaft, the releasable locking mechanism being connected to the at least one plate member and being configured to secure the position of the harness assembly relative to the support shaft and relative to the backrest; and wherein the at least one plate member and releasable locking mechanism are jointly slidably moveable relative to the support shaft and relative to the backrest.

There is provided an adjustable infant carrier comprising: a backrest for supporting the upper body of an infant, the backrest having a front side and a rear side; a support shaft arranged at the rear side of the backrest; a harness assembly comprising at least one plate member arranged on the front side of the backrest; and a releasable locking mechanism positioned between the at least one plate member and the support shaft, the releasable locking mechanism being connected to the at least one plate member and being configured to secure the position of the harness assembly relative to the support shaft and relative to the backrest; and wherein the at least one plate member and releasable locking mechanism are jointly slidably moveable relative to the support shaft and relative to the backrest.

A child seat includes a seat portion fixedly connected with a first coupling part, a backrest frame fixedly connected with a second coupling part, the second coupling part being pivotally connected with the first coupling part so that the backrest frame is rotatable relative to the seat portion, a rotary element pivotally connected with the first coupling part, the rotary element being rotatable relative to the seat portion and the backrest frame, and a locking mechanism operatively connected with the backrest frame and operable to rotationally lock and unlock the rotary element with respect to the seat portion. The locking mechanism is configured to switch between a locking state and an unlocking state in response to a rotation of the backrest frame relative to the seat portion and the rotary element.

A child seat includes a seat portion fixedly connected with a first coupling part, a backrest frame fixedly connected with a second coupling part, the second coupling part being pivotally connected with the first coupling part so that the backrest frame is rotatable relative to the seat portion, a rotary element pivotally connected with the first coupling part, the rotary element being rotatable relative to the seat portion and the backrest frame, and a locking mechanism operatively connected with the backrest frame and operable to rotationally lock and unlock the rotary element with respect to the seat portion. The locking mechanism is configured to switch between a locking state and an unlocking state in response to a rotation of the backrest frame relative to the seat portion and the rotary element.

A pet stroller includes a canopy fabric, a supporting frame, a first longitudinal frame, a second longitudinal frame, a rear wheel frame, and a plurality of wheels. The supporting frame includes a carriage body which has an accommodating cavity and a front opening. The supporting frame includes a main supporting frame, an adjustable supporting frame and a utility frame extended from the main supporting frame to a position corresponding to the front opening of the carriage body for allowing pet's access. When the adjustable supporting frame is in a lying position, the adjustable supporting frame is pivotally moved to substantially align with the main supporting frame for maximizing a volume of the accommodating cavity. When the adjustable supporting frame is in the first inclined position, it is pivotally moved to inclinedly and upwardly extended from the main supporting frame for reducing a size of the accommodating cavity.

The invention relates to a field of a transport driven manually, namely, to baby strollers, and it is intended to allow an alternate use of different variants of a baby cradle or seat which differ in a size and in a weight on a frame thereof. A baby stroller having a frame with adjustable width, the frame consists of front wheel supports hingedly connected between each other, rear wheel supports which are equipped with wheel mounting assemblies, and handle supports, comprising a removable seat or cradle fixed on mounting places, wherein horizontal cross-bars are arranged between the supports of the rear wheels and front wheels. According to the invention, the frame consists of two semi-frames, and the horizontal cross-bars are made adjustable in length and arranged on each of the semi-frames so as to be fixable at least in a first frame adjustment position and at least in a second frame adjustment position.

The invention relates to a field of a transport driven manually, namely, to baby strollers, and it is intended to allow an alternate use of different variants of a baby cradle or seat which differ in a size and in a weight on a frame thereof. A baby stroller having a frame with adjustable width, the frame consists of front wheel supports hingedly connected between each other, rear wheel supports which are equipped with wheel mounting assemblies, and handle supports, comprising a removable seat or cradle fixed on mounting places, wherein horizontal cross-bars are arranged between the supports of the rear wheels and front wheels. According to the invention, the frame consists of two semi-frames, and the horizontal cross-bars are made adjustable in length and arranged on each of the semi-frames so as to be fixable at least in a first frame adjustment position and at least in a second frame adjustment position.

A baby carriage equipped with a backrest part is further provided with a fan unit bag that is mounted at the rear of the backrest part The fan unit bag comprises: a fan unit which draws in air from the backrest part a fan base which is made of a low air-permeability sheet and which supports the fan unit such that the fan unit faces the backrest part; and a fixation part which is disposed so as to surround the fan unit and which detachably mounts the fan base to the backrest part.

A baby carriage equipped with a backrest part is further provided with a fan unit bag that is mounted at the rear of the backrest part The fan unit bag comprises: a fan unit which draws in air from the backrest part a fan base which is made of a low air-permeability sheet and which supports the fan unit such that the fan unit faces the backrest part; and a fixation part which is disposed so as to surround the fan unit and which detachably mounts the fan base to the backrest part.