| 摘要 |
<p>A chair comprising:
- a base structure (12);
- a seat (14), carried by the base structure (12);
- a backrest (16), comprising two lateral uprights (26) connected to a resting portion (28), the backrest (16) being articulated to the base structure (12) about a horizontal axis (A) and being mobile between a resting position and a position reclined backwards; and
- an elastic mechanism (30), arranged for pushing the backrest (16) elastically towards said resting position,
wherein the elastic mechanism (30) comprises:
- two hubs (32) fixed with respect to the base structure (12) and set at a distance from one another along said axis of articulation (A);
- two rotating members (34), which engage the respective hubs (32) in such a way that they can turn about said axis of articulation (A), each of said rotating members (34) being fixed to a bottom end of a respective upright (26); and
- two helical springs (52) set coaxially to said axis of articulation (A), each of said helical springs (52) having a first end (54) fixed to a respective hub (32) and a second end (56) fixed to a respective rotating member (34).</p> |
