Importance

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Abstract

The window restrictor (10) of the present invention may be used to limit the opening of a casement hinged window. The restrictor (10) comprises a restrictor member (12) and a latch mechanism (14). Typically, the restrictor member (12) is attached to a stile or rail (16) of the moving window pane and the latch mechanism (14) is attached to a part of the casing or frame 18 surrounding the window opening. In use, the restrictor member (12) is engaged with the latch mechanism (14) so that as the window is opened, the extent of opening is restricted by the length of the restrictor member (12). To fully open the window, the restrictor member (12) must be disengaged from the latch mechanism (14). When the restrictor member (12) and latch mechanism (14) are disengaged, they remain in such a configuration that, when the window is closed, the restrictor member (12) and latch mechanism (14) automatically re-engage to prevent the window being fully opened again. This means that it is not necessary to remember to reattach or reset the restrictor (10) each time the window is opened and closed. In addition, the restrictor member (12) comprises a hinged member which includes bias means which urges the restrictor member to lie adjacent to and flush with the window pane in the fully opened and disengaged position.

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First Claim