| 摘要 |
A flexible, articulated backrest frame assembly adapted to be installed between a backrest member (98) and a chair seat member (88) to form a flexible backrest for a chair. The frame assembly includes a lower frame part (86) having a pair of hollow, spaced apart frame members (104) joined together at one end of each and open at their opposite ends (110) and an upper frame part (84) having a pair of hollow, spaced apart frame members and open ends (96) in registry with the open ends of the lower frame members. Spring members (50) are secured between the open ends of the frame members to provide an articulated flexible spring connection between the upper and lower frame parts. The frame parts include members (100, 106) for attaching same to a backrest member and chair seat member respectively to form the flexible backrest for the chair. A resilient cover (120) can enclose the backrest frame assembly. |
