| abstract |
The present invention relates to office equipment field, particularly a kind of chair, it includes：Supporting part, for the buttocks for supporting user to sit down；Chair leg, it is rod-like element, installed in surrounding below supporting part；Backrest, it is arranged on the chair leg side below supporting part one side or the side；Folded sheet, if it is cascaded by dry plate, plate can rotate around itself with the place of series connection of adjacent panels, the side of the plate of bottommost is fixed on supporting part upper surface, the side of the plate of top is slidably mounted on backrest, and the jacking apparatus that jacking folded sheet forms it into outwardly convex trend is provided with below folded sheet；The goal of the invention of the present invention is to provide a kind of chair for protecting user's lumbar vertebrae, help to correct. |