| 摘要 |
A friction window hinge comprising a frame plate 15 for attachment to a window frame 12, a vent plate 27 for attachment to the movable window vent 11 and a separate curved link 19 which extends between the plates and is slideably engageable with correspondingly curved guide tracks 17,(28, fig 7) on both of the plates. In the open position the curved link is extended between the plates 15,27 to support the window vent and abutment 26 limits the outward sliding movement of the link. In the closed position the plates are brought into overlying relation with the link retracted between them. The arrangement reduces the obstruction of the aperture in the frame when the vent is fully open. |
