The invention provides a chair and a cushion. The cushion rarely compresses the hip of a user seated on the cushion, easily keeps correct attitude and allows the user to easily breathe. The cushion comprises a seat portion and a back portion. Two positions, corresponding to ischia and abutted to the same, of the seat portion are provided with three-dimensional surfaces; the left-right directional longitudinal section of each three-dimensional surface is concaved, and the front-rear directional longitudinal section inclines to the back and the surface; the part, corresponding to the upper edge of ilium and abutted to the ilium, of the back portion has left-right directional cross section concaved in a whole; the part, corresponding to the lower ribs and abutted to the same, of the back portion has left-right directional cross section concaved in a whole; the part, above the lower ribs, of the back portion has a three-dimensional surface having left-right directional cross section concaved in a whole and top-bottom directional longitudinal section inclining to the top and the inside.
Cushion and chair
2015-06-03
Patent
Elektronische Ressource
Englisch
IPC: | B60N SEATS SPECIALLY ADAPTED FOR VEHICLES , Sitze besonders für Fahrzeuge ausgebildet |