| 摘要 |
A chair 100 comprises a seat 11, a back rest 10 and a frame with a curved rail 30,40, wherein the seat and back rest are carried by a runner 17 which is movable along the rail such that the position of the back rest 10 relative to the seat 11 changes in a horizontal direction as the seat and back rest move along the rail 30,40 together. The chair provides a seat with simultaneous adjustment of seat height and seat depth, suitable for use by pupils in school. The chair may be foldable and preferably includes a pair of side rails to support the backrest. Also disclosed is a chair with a seat, a frame which comprises a series of fixing elements on each side of the frame for defining a range of heights of the seat, and a locking device mounted on the seat and arranged to engage with the fixing elements to lock the seat in any one of a number of heights corresponding the position of the fixing elements on each side of the frames [see Figs. 3-5]. Also disclosed is a foldable chair with a seat supported by a frame that has a side rail and a leg carried by the side rail, and wherein the chair can change between an open position with the leg extended, and a folded position in which the leg is retracted and which causes the seat to move substantially flat with the rest of the chair. |
