| 摘要 |
<p>A sliding window assembly having a guide track and sliding pane geometry which ensures that the sliding pane maintains a vertical, untilted orientation when it is slid along the guide track to a closed position. The sliding pane is retained along its lower edge in the guide track for sliding horizontal sliding movement between open and closed positions. The pane has a projection extending downwardly from its lower edge adjacent its trailing edge when the pane is sliding toward the closed position, and the upper surface of the guide track along which the pane slides is generally horizontal except for an inclined section which slopes upwardly toward the closed position of the pane. The inclined section is located along the length of guide track so that it is immediately beneath the projection of the pane when it is in the closed position. The projection slides upwardly onto the inclined section as the pane reaches the closed position, thereby urging the trailing edge of the pane upwardly to counteract the tendency of the pane to tilt outwardly at its upper ends as it is driven to the closed position. A window assembly having two opposingly slidable panes is also provided, each of the panes having a downwardly extending projection formed adjacent its inboard edge and the lower guide track having an inclined sections to contact each of the panes.</p> |
