| 摘要 |
A bottom plate structure of a chair has a bottom plate 1, a back rest 2 and a seat frame 3. The bottom plate 1 has an elastic support device 10, a tilting device 20 and an adjusting device 30. The elastic support device 10 has at least one resilient sheet (11, figure 3), an adjusting component (13, figure 3), and a supporting base (14, figure 6) connected to the adjusting component (13). The tilting device 20 has a pivoting component (21, figure 11) connected to the back rest 2, a transmission seat (22, figure 9), and two fastening members (23, figure 9) connected to the bottom plate 1 for releasably engaging with insertion slots (215, figure 12) on the pivoting component (21), the fastening members being operated by a cable (226, figure 9). The adjusting device 30 is mounted between the bottom plate 1 and the seat frame 3, and has a back pivoting component 40 and a front adjusting component 50 mounted on the seat frame 3 and the bottom plate 1. |
