| 摘要 |
A casement window operator system that includes an operator (12), a driven hinge (10) and a passive hinge (11), the driven hinge includes an arm (20) drivingly engaged ("the driven arm") with the operator (12) and that the driven arm (20) being pivotally coupled to the sash mounting (17) in a position spaced from the pivot coupling (21) of the driven arm (20) to the operator (12). The driven hinge (10) and the passive hinge (11) are mounted on the opposite sides of the frame F of a casement window. The sash S of the window is mountable by the mounting plate (17) and (28) of the hinges. The operator (12) is mounted with the frame F adjacent to the driven hinge (10) and a driven arm (20) of the operator (12) is coupled to the window sash mounting plate (17). The passive hinge (11) being constructed to replicate the operating locus of the driven hinge (10). |
