| 摘要 |
<p>A chair comprising:
- a fixed support structure (12) including two side uprights (22),
- a backrest (24) having two side portions (28), and
- a pair of elastic joints (30) connecting said side portions (28) of the backrest (24) to said side uprights (22),
wherein each of said elastic joints (30) comprises:
- a bushing (32) fixed to a respective side upright (22),
- a helical spring (40) having a longitudinal axis (A), the helical spring (40) having an upper end (42) resting against a front wall (36) of the bushing (32),
- a compression member (46) resting against a lower end (44) of the spring (40),
- an upper attachment (80) fixed to a corresponding side portion (28) of the backrest (24), and
- a rigid connecting rod (66) having an upper end (70) and a lower end (68) articulated, respectively, to the upper attachment (80) and to the compression member (46) about respective axes (C, B) parallel to each other and transverse with respect to said longitudinal axis (A),
wherein the articulation axis (C) between the upper end (70) of the connecting rod (66) and the upper attachment (80) of each elastic joint (30) is spaced forward with respect to said longitudinal axis (A).</p> |
