| 摘要 |
A friction window stay for mounting a window sash in a window frame, the stay including: a frame mounting member for securement of the stay to the frame of a window, a sash mounting member for securement of the stay to the sash of a window, a short arm having a pivot joint between a sash end of the short arm and the sash mounting member and a pivot joint between a frame end of the short arm and the frame mounting member, and a long arm having a pivot joint between a sash end of the long arm and the sash mounting member and a pivot joint between a frame end of the long arm and the frame mounting member which is offset to one side of a longitudinal centerline of the frame mounting member such that when the stay is fully closed, so that the sash mounting member and frame mounting member are substantially aligned, a line connecting the long arm-sash mounting member pivot joint and the offset long arm-frame mounting member pivot joint extends at an angle relative to the longitudinal centre line of the frame mounting member. |
