| 摘要 |
<p>A worktop (1) comprising a leaf (3) hingedly coupled to a wall (6) about a hinge axis (7) by a pair of support mechanisms (91) between a usable state and a folded state. Each support mechanism (91) comprises a first mounting member (93) and a second mounting member (92) which are pivotally connected by a main pivot pin (94) which defines the hinge axis (7). A strut (15) extends between the first and second mounting members (93,92). A first pivot pin (19) at a first end (17) of the strut (15) is slideable and pivotal in an elongated first guide track (96) in the first mounting member (93) between first and second positions (73,74). A second pivot pin (20) at a second end (18) of the strut (15) is pivotal in a slideable element (25), which in turn is slideable in a second guide track (14) of the second mounting member (92) between first and second positions (26,27). A plunger (40) in the slideable element (25) engages a receiving opening (43) in the second guide track (14) for retaining the slideable element (25) in the first position (23) for retaining the leaf (3) in the usable state. On disengagement of the plunger (40) from the recess opening (43), the leaf (3) is pivoted downwardly in the direction of the arrow (A) from the usable state to the folded state, and the slideable element (25) slides to a second position (24) in the second guide track (14) while the first pivot pin (19) slides from the first position (73) to the second position (74) in the first guide track (96).</p> |
