The application discloses a frame of double-person baby carriage and a frame folding mechanism thereof The frame folding mechanism comprises an upper link, a lower link, a middle upright rod, two upper supporting rods, two lower supporting rods and two foot frames. The upper link and the lower link are spaced apart in a vertical direction; the middle upright rod is vertically connected between the upper link and the lower link; first ends of the two upper supporting rods are pivotally connected to both ends of the upper link; first ends of the two lower supporting rods are pivotally connected to both ends of the lower link; the foot frames are arranged in a vertical direction, top ends of the foot frames are pivotally connected to second ends of the upper supporting rods, bottom ends of the foot frames are pivotally connected to second ends of the lower supporting rods.

A collapsible seat assembly is mounted on a frame of a stroller, and includes a joint member, a backrest support member, a leg support member and a locking mechanism. Each of a pivot portion of the backrest support member and a pivot portion of the leg support member is pivotably mounted on the joint member. The locking mechanism is disposed between the pivot portions to lock or unlock the backrest and leg support members. The locking mechanism is configured to be actuated to move from a locking position to an unlocking position by the operation of the frame of the stroller from an unfolded state to a folded state. A stroller having the collapsible seat assembly is also disclosed.

A collapsible seat assembly is mounted on a frame of a stroller, and includes a joint member, a backrest support member, a leg support member and a locking mechanism. Each of a pivot portion of the backrest support member and a pivot portion of the leg support member is pivotably mounted on the joint member. The locking mechanism is disposed between the pivot portions to lock or unlock the backrest and leg support members. The locking mechanism is configured to be actuated to move from a locking position to an unlocking position by the operation of the frame of the stroller from an unfolded state to a folded state. A stroller having the collapsible seat assembly is also disclosed.

A multi-stage toy walker includes at least a handle, a base, and a configurable component that is adjustable from a folded-flat configuration to at least one of a seat-shaped configuration and a basket-shaped configuration.

An infant stroller apparatus includes a first and a second leg frame respectively having a first and a second side segment respectively connected fixedly with a first and a second coupling part, and a handle frame having a third side segment fixedly connected with a third coupling part. The second and third coupling parts are respectively connected pivotally with the first coupling part. Moreover, the infant stroller apparatus includes a first latch operable to rotationally lock the handle frame with respect to the first leg frame, a second latch operable to rotationally lock the second leg frame with respect to the first leg frame, and a linkage assembly respectively connected with the third coupling part and the second latch such that a folding rotation of the handle frame relative to the first leg frame urges an unlocking displacement of the second latch.

An infant stroller apparatus includes a first and a second leg frame respectively having a first and a second side segment respectively connected fixedly with a first and a second coupling part, and a handle frame having a third side segment fixedly connected with a third coupling part. The second and third coupling parts are respectively connected pivotally with the first coupling part. Moreover, the infant stroller apparatus includes a first latch operable to rotationally lock the handle frame with respect to the first leg frame, a second latch operable to rotationally lock the second leg frame with respect to the first leg frame, and a linkage assembly respectively connected with the third coupling part and the second latch such that a folding rotation of the handle frame relative to the first leg frame urges an unlocking displacement of the second latch.

A folding perambulator has a wheeled foldable frame 1 with front frame members 10 which may be folded toward rear frame members 5 when a seating member 2 is removed from the frame 1. A handle 7 is also arranged to be foldable downwardly toward the rear wheels 3. A locking mechanism 6 is provided to permit the frame and handle to be folded. The handle includes a rotatable member 25 which, in one direction of rotation, is arranged to adjust the length of the handle by permitting telescoping of tubular members 26, 27, and in an opposite direction of rotation to cause the locking mechanism, which includes a dog clutch 80, to be disengaged to permit the frame and handle to be folded to a closed position.

A folding perambulator has a wheeled foldable frame 1 with front frame members 10 which may be folded toward rear frame members 5 when a seating member 2 is removed from the frame 1. A handle 7 is also arranged to be foldable downwardly toward the rear wheels 3. A locking mechanism 6 is provided to permit the frame and handle to be folded. The handle includes a rotatable member 25 which, in one direction of rotation, is arranged to adjust the length of the handle by permitting telescoping of tubular members 26, 27, and in an opposite direction of rotation to cause the locking mechanism, which includes a dog clutch 80, to be disengaged to permit the frame and handle to be folded to a closed position.

A convertible car seat to stroller device includes a car seat that has a frame, which is rigid. A handle, which is extendable, is coupled to the frame. One of pair of cross supports, each comprising a front member and back member, is pivotally coupled to a bottom of the frame proximate to a left side of the frame. The other of the pair of cross supports is pivotally coupled to the bottom proximate to a right side of the frame. A front axle is rotationally couple to the front members. The front axle is coupled to a pair of front wheels. A back axle is rotationally coupled to the back members. The back axle is coupled to a pair of back wheels. The car seat is couplable to a base, which is couplable to the interior of a vehicle.

A convertible car seat, carrier and stroller device includes a car seat that has a frame, which is rigid. The car seat is shaped and sized to a child. A handle, which is extendable, is coupled to a back of the frame. A wheel assembly is coupled to and positioned in a housing that is coupled to a bottom of the frame. The wheel assembly is extensible from the housing and operationally coupled to the handle. Extending the handle lowers the wheel assembly and retracting the handle raises the wheel assembly. The car seat is couplable to a base that is configured to couple to an interior of a vehicle. The base is couplable to the interior of a vehicle and positioned to secure the car seat in the vehicle.