US 12,697,270 B2

摘要

A rollable user-support device comprising a rigid frame with first legs and second legs, each with a rollable and swivelable wheel, a seat with a seat folding mechanism and/or a seat manipulation mechanism. The seat manipulation mechanism can be operable to move the seat, with a user seated thereon, between a lower rearward seating position and an elevated forward seating position, and the seat folding mechanism can be operable to move the seat between the elevated forward seating position and a folded position, at least one of the devices being connected to a swivel prevention mechanism assoc…

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