Folding frame for push chair - has rigid support tubes with links to retain height adjustable seat base

摘要

The folding frame for a push-chair has two rigid tubes articulated together in parallel with cross beams to define open and closed positions. Secondary tubes are connected at pivot points to the first with the upper ends connected to tubes moving between horizontal supporting and folded positions. Two rigid tubes form a seat frame and pivot on links connected to the rigid tubes when in a deployed position. The pivot links on the rigid tubes can be adjustable for height.