| 摘要 |
<p>A mechanism is described for regulating the opening of a window pane (8), such as for an openable window in the tailgate of a vehicle body. A hinge (14) comprises a lower hinge plate (14A) secured to the frame of the window opening and an upper hinge plate (14B) secured to the window pane (8). Levers (18A,18B) of a first pair have a pivotal connection (22) and respectively extend therefrom to pivotal connections (26,38) with lower and upper cross-struts (30,36). Similarly, levers (20A,20B) of a second pair have a pivotal connection (24) from which the levers respectively extend to pivotal connections (28,40) with the lower and upper cross-struts (30,36). The cross-struts (30,36) are themselves pivotally connected to the lower and upper hinge plates (14A,14B) at respective pivotal connections (32,34;and 42,46). A tension spring (50) acts between the two pairs of levers (18A,18B;20A,20B), so as to tend to pull the two pivotal connections (22,24) together. In this way, the spring tends to pivot the hinge plates (14A,14B) apart from each other, thus tending to open the window. The window can be closed by a force manually exerted on the window pane (8), which thus brings the hinge plates (14A,14B) towards each other against the spring force. As the levers (18A,18B;20A,20B) pivot, the cross-struts (30,36) pivot relative to the respective hinge plates (14A,14B).</p> |
