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A folding wheelchair is a portable mobility aid featuring a collapsible frame, typically designed with an X-frame (cross-brace) mechanism that allows it to fold inward. This design is primarily used to facilitate storage in small spaces like car trunks or closets and to make travel easier.
Core Mechanism and Folding Process
Cross-Brace System: Most models use two metal bars shaped like an "X" beneath the seat that pivot like scissors.
Folding Steps: To collapse the chair, users typically flip up the footplates and pull upward on the center of the seat fabric or seat rails.
Unfolding Steps: To open it, users push down firmly on the seat rails until the frame is fully expanded and locked into place.
Additional Components: Many models also feature fold-down backrests, flip-up armrests, and detachable footrests to achieve a more compact size.