| 摘要 |
<p>A vehicle cab (10) with a window aperture (11) closed by a pivotable glazing panel (12). The window aperture is of vertically tapering form such that the width 'W' of the lower regions of the aperture is less than higher regions of the aperture and the glazing panel (12) is of a similar vertically tapering form. A glazing panel mounting structure (13) allows the glazing panel to be moved from a generally upright closed position to a generally horizontal open position (12 min ) by raising the panel in a vertical sense so that the lower narrower portion of the panel is in alignment with a wider higher portion of the aperture and then pivoting the lower narrower portion of the glazing panel about a first generally horizontal axis (21) through the wider higher portion of the aperture to its generally horizontal open position. The locus (60) of the glazing panel as it moves between its closed and open positions may be controlled to a predetermined pattern by a linkage (42, 49, 50, 51, 52) which inter-connects the movements of the mounting structure and glazing panel relative to the cab.</p> |
