A transport vehicle including one or more accessory connectors for releasably locking one or more vehicle accessories to the transport vehicle. An accessory connector may releasably lock a first accessory within a first slot defined by the accessory connector and a second accessory within a second slot defined by the accessory connector. In some embodiments, the accessory connector may simultaneously releasably lock the first accessory and the second accessory within the first and second slots, respectively. The accessory connectors facilitate simple, quick, and easy attachment and detachment of vehicle accessories so that the transport vehicle may be easily converted between different modes of use.

A child transport device system, such as a pram or child trailer or jogger system, for use in different modes, in particular for pushing or pulling transport of at least one child, comprising a child receiving device for receiving the at least one child, which is adjustable in at least two configurations, and at least one connection device, which is connectable to the child receiving device in at least one of the configurations of the child receiving device and is not connectable or is connectable only in an impeded manner to the child receiving device in at least one further configuration of the child receiving device.

A multi-function mobility device may comprise a lower chassis shell and an upper occupant shell connected by a quick release pivot joint that provides occupant accommodation that is secure and comfortable. In addition, the structural architecture is designed to allow safe adaptations to the axle configuration. Through flexible suspension arm mounting the suspension-hub-wheel/tire assembly can be quickly assembled/disassembled to provide alternative usage axle layouts. An ergonomic handle assembly may be coupled with the structure for pushing, pulling, towing, carrying, etc. When disassembled, the multi-function stroller can be folded into a compact storage mode. Thus, non-compromised performance, versatility, and usage functionality can be readily achieved and accomplished in a safe manner.

A multi-function stroller may comprise a lower chassis shell and an upper occupant shell connected by a quick release pivot joint that provides occupant accommodation that is secure and comfortable. In addition, the structural architecture is designed to allow safe adaptations to the axle configuration. Through flexible suspension arm mounting the suspension-hub-wheel/tire assembly can be quickly assembled/disassembled to provide alternative usage axle layouts. An ergonomic handle assembly may be coupled with the structure for pushing, pulling, towing, carrying, etc. When disassembled, the multi-function stroller can be folded into a compact storage mode. Thus, non-compromised performance, versatility, and usage functionality can be readily achieved and accomplished in a safe manner.