| 摘要 |
A chair comprising a seat, and a backrest including a lower portion which is connected to the seat and which has an upper end, a rear surface, and a forwardly facing lower body supporting surface, an upper portion having a lower end, an upper body supporting surface, and a surface opposite the upper body supporting surface, and structure connecting the lower end of the upper portion to the upper end of the lower portion for translational movement relative thereto between a locked position wherein the upper and lower body supporting surfaces are generally coplanar, and an intermediate position spaced upwardly from the locked position, and for pivotal movement relative thereto between the intermediate position and a folded-up position wherein the rear surface of the lower portion and the opposite surface of the upper portion are substantially in abutment.
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