Foldable strollers and related methods are disclosed herein. An example frame for use with a stroller includes a first leg, a second leg, a first joint to couple the first leg and the second leg, a handle arm, and a second joint to couple the handle arm and the first leg. The second joint includes a first portion having a pocket and a second portion including a lock slidably disposed in the second portion. The lock is to be removably coupled to the pocket. The handle arm is to rotate relative to the first leg via the second joint when the lock is removed from the pocket. The rotation of the handle via the second joint is to enable the second leg to rotate relative to the first leg via the first joint to fold the frame.

The present disclosure relates to a double stroller, with a frame thereof including three side supports and two transverse supports. Each two adjacent side supports are connected to each other via one transverse support. Each transverse support includes at least one connecting rod assembly, and each connecting rod assembly includes an outer connecting rod fixedly connected with the side support on a left or right side and an inner connecting rod fixedly connected with the side support in the middle. The outer connecting rod is connected to the inner connecting rod in a horizontally rotatable manner. The outer connecting rods and inner connecting rods connected in a horizontally rotatable manner to enable the side supports on two sides to close together as the outer connecting, rods are turned transversely and folded, and thus, after being folded, the space occupied by the double stroller in the left-right direction is lessened.

A stroller includes a left side support frame; a right side support frame; and a connecting frame which connects the left and right side support frames together, and which defines a seat rest for a child; wheels rotatably connected to a front and rear of each support frame; at least one rear footboard connected to a rear end of the stroller; an adjustment assembly which rotatably connects the rear wheels to a rear of the support frames, between a first inward operative position and each rear footboard to a vertical position for use when a child is not standing on the at least one rear footboard and a second outward operative position and each rear footboard to a horizontal position which increases a footprint of the stroller for use when a child is standing on the at least one rear footboard.

A child stroller apparatus includes a handle frame having a first side segment fixedly connected with a first coupling part, a front leg frame having a second side segment fixedly connected with a second coupling part, a rear leg frame having a third side segment fixedly connected with a shell, the third side segment being respectively connected pivotally with the first and second coupling parts, a linking member received at least partially inside the shell and respectively connected pivotally with the first and second coupling parts about two different pivot axes, the handle frame and the front leg frame being thereby rotationally linked to each other, and a latch disposed adjacent to the first coupling part, the latch being operable to rotationally lock the handle frame with respect to the rear leg frame so as to lock the infant stroller apparatus in an unfolded state.

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 collapsible stroller is disclosed, including a front axle frame member, a rear axle frame member, a handlebar frame member, a handlebar, and a hub. The hub includes a rotating attachment point for the front axle frame member, a rotating attachment point for the handlebar frame member, a fixed attachment point for the rear axle frame member. A cable connects the hub, and a rotatable handle on the handlebar frame member. When the rotatable handle is rotated, the cable causes the hub to collapse in two stages.

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.

Disclosed are a foldable joint having an unfolded position and a folded position, and a stroller having the foldable joint. The foldable joint comprises a base rod (1), a first rotary rod (2) and a second rotary rod (3), wherein one end portion of the base rod (1), one end portion of the first rotary rod (2) and one end portion of the second rotary rod (3) are rotationally connected to one another, a slider (4) is slidably arranged on the base rod (1), a driving part (41) is connected to the slider (4), a first guide portion (21) is arranged on the first rotary rod (2), a second guide portion (31) is arranged on the second rotary rod (3), and the driving part (41) is slidably fitted with the first guide portion (21) and the second guide portion (31) respectively. In the process of unfolding or folding the foldable joint, the driving part (41) moves relative to the first guide portion (21) and the second guide portion (31) simultaneously, and the driving part (41) moves along with the slider (4) relative to the base rod (1) such that the three components, i.e. the first rotary rod (2), the second rotary rod (3) and the base rod (1) are rotated relative to one another.

A foldable stroller frame and a foldable stroller are provided. The foldable stroller frame may include, a front wheel bracket, and a rear wheel bracket rotatably connected to the front wheel bracket. An upper end of the rear wheel bracket is rotatably connected to a side handrail, and a rear end thereof is rotatably connected to a rear supporting bar. The side handrail and the rear supporting bar are rotatably connected to a push bar from different shafts. The rear wheel bracket is provided with a slidable sleeve to which a front wheel bracket link and a side handrail link are rotatably connected, respectively. An end of the front wheel bracket link that is not connected to the slidable sleeve is rotatably connected to the front wheel bracket, and an end of the side handrail link that is not connected to the slidable sleeve is rotatably connected to the side handrail.

A foldable stroller (1, 41) is provided with at least one pushrod (2, 3) being pivotable about a first pivot axis (9, 10). The folding mechanism is further provided with a number of rods, comprising a first rod (19, 20) being pivotable about a second pivot axis (17, 18). The first rod and the pushrod are provided with cooperating connecting elements (52, 56) being connectable to each other by pivoting the pushrod about the first pivot axis to an erect position of the pushrod, in which position the connecting elements are lockable to each other by locking means (57). When the locking means are unlocked and the connecting elements are still connected to each other, the connecting means prevent the first rod to pivot about the second pivot axis. After unlocking the locking means as well as after disconnecting the connecting elements by pivoting the pushrod about the first pivot axis towards a collapsed position of the pushrod, the first rod is pivotable about the second axis to achieve the collapsed position of the stroller.