| 摘要 |
<p>Device (1 ) for synchronizing the tilt of the back and the seat of a chair, of the type comprising a back frame (13), a seat frame (2) and a support (5) constrained to, or coincident with, the base (14) of the chair, as well as at least one first crank (3) hinged (6, 7) to the support (5) and a front portion (2f) of the seat frame (2), and at least one second crank (4) hinged (8, 9) to the support (5) and a rear portion (2r) of the seat frame (2), so that the afore said at least one first and one second crank (3, 4) constitute a four - bar linkage with the seat frame (2). Advantageously, the device (1 ) provides that the back frame (13) is integral with the afore said at least one first crank (3).</p> |
