| 摘要 |
<p>In a chair tilting mechanism (10), a seat support (25) pivots about a fixed support (20) at a pivot pin (26). Rotation is biased by a spring unit within a control handle (11). A backrest support (41) is directly pivotally connected to the fixed support (20). The backrest support (41) is additionally connected to the seat support (25) by a connector (42) comprising an upper round bar (42a) and a lower round bar (42b). The connector (40) allows both rotational and sliding motion of the backrest support (41) with respect to the seat support (25). Thus, the fixed, seat and backrest supports are connected together in a manner which allows synchronised tilting of the seat and backrest of a chair whenever one or other is tilted. The tilting relationship is set by the positions of the pivot pins (26, 40) and the bar (42b).</p> |
