A foldable car seat carriage includes a frame unit and an engagement unit. The frame unit includes two leg frames. Each of the leg frames includes two legs pivotable relative to each other, and a driving mechanism. The driving mechanism has opposite ends connected pivotally to the legs at first and second intersections. The engagement unit includes two bayonets. Each of the bayonets has a linking portion connected pivotally to the driving mechanism of a respective one of the leg frames. For each of the leg frames, change of a distance between the first and second intersections of the driving mechanism and the legs during pivot action of the legs converts a position of the engagement unit relative to the legs.

Disclosed is a cart of a telescopic structure, comprising: a telescopic rod; a telescopic tube, where at least one of the telescopic tube and the telescopic rod have a hollow structure acting as an accommodation space that is required when the telescopic tube and the telescopic rod collapse into each other; a linkage mechanism connected to one end of the telescopic tube that is away from the hollow structure, and connected to one end of the telescopic rod that is close to the hollow structure; and a frame connected to the linkage mechanism. When the frame is rotated with respect to the linkage mechanism and collapses, the telescopic tube is also rotated with respect to the linkage mechanism, and one of the telescopic tube and the telescopic rod is retracted into the other thereof by means of the linkage mechanism.

A foldable car seat carriage includes a frame unit and an engagement unit. The frame unit includes two leg frames. Each of the leg frames includes two legs pivotable relative to each other, and a driving mechanism. The driving mechanism has opposite ends connected pivotally to the legs at first and second intersections. The engagement unit includes two bayonets. Each of the bayonets has a linking portion connected pivotally to the driving mechanism of a respective one of the leg frames. For each of the leg frames, change of a distance between the first and second intersections of the driving mechanism and the legs during pivot action of the legs converts a position of the engagement unit relative to the legs.

A collapsible child's stroller with a handle frame (30), a front wheel frame (10) and a rear wheel frame (20), mutually connected at a hinge joint (12, 22, 42) for mutual angular displacement between folded and unfolded configurations. The hinge joint has two spaced apart, parallel hinge axes, about which the frames (10, 20, 30) mutually rotate. The stroller is further provided with a locking element (43, 44) moveable between a locked position in which the frames (10, 20, 30) are locked in the unfolded configuration, and an unlocked position allowing the frames (10, 20, 30) to rotate to the folded configuration. The locking element (43, 44) moves in a direction traverse to the parallel hinge axes to better transfer loads between the frames.

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 synchronous folding mechanism is adapted to be mounted to a stroller, and includes a rear joint, a handlebar joint, a front joint, a swing member and a first link member. The handlebar joint and the front joint are rotatably connected to the rear joint. The swing member has opposite end portions, one of which is rotatably connected to the rear joint. The first link member is rotatably connected to the other one of the end portions of the swing member, and is rotatably connected to one of the handlebar joint and the front joint. Rotation of the one of the handlebar joint and the front joint drives a swinging movement of the swing member relative to the rear joint and a movement of the first link member relative to the rear joint.

A stroller wagon having a wagon frame, a push bar and a flexible housing with a recline seatback is provided. The wagon frame has a first end assembly and an opposing second end assembly. First and second rear wheels are rotatably connected to the wagon frame adjacent the second end assembly, and first and second front wheels are rotatably and pivotally connected to the wagon frame adjacent the first end assembly. The push bar has a ratchet mechanism to pivotally secure the push bar in a plurality of angularly located positions. The recline seatback is adapted to pivot about a hinge, and has a seatback lock assembly to fix the seatback in a plurality of angled positions.

A foldable stroller comprises a folding mechanism to assist in folding of the stroller. Such a folding mechanism may be used to convert a stroller from an in-use configuration to a storage configuration. More specifically, the stroller comprises a stroller folding assembly that biases the stroller from the in-use configuration to the storage configuration by the force of gravity exerted on the handle. The stroller folding assembly has linkages that drive folding of the front wheel assembly and rear wheel assembly in response to rotation of the handle into the storage configuration from the in-use configuration.

A stroller frame, comprising at least one motor, particularly an electric motor, for assisted driving of the stroller frame, a pusher bar for pushing the stroller frame and at least one force sensor device for detecting a direction and/or an amount of force and/or a force component acting on the pusher bar, and/or for detecting a value derived from said force or force component, particularly a temporal change of the force or force component.

A cart includes a hub, a frame, and at least one handlebar. The frame includes a first segment and a second segment, and the first segment, the second segment, and the handlebar are each supported by the hub. The hub defines a rotational axis and at least two of the first segment, the second segment, and the handlebar are rotatable about the rotational axis relative to each other and the hub. At least one wheel is on the first segment and at least one wheel is on the second segment.