Hinge for roof window
AssigneeGKN Crompton Limited
InventorsPaul S. White, Michael D. Eaton
Life of this patent
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Abstract
A hinge primarily for a roof window with a pivotally opening sash comprises a body to be fixed to the frame of the window, a support member pivoted to the body and arranged to be secured to the sash, a stay member pivoted to the support member spaced from its connection to the body, and constraining mechanism comprising a frictional assembly and positive catch mechanism to hold at least one position of the sash. As the sash is pivoted, the stay member has one end moved in an arc by the support member while its other end is constrained to reciprocation within the body. The catch mechanism may be operable from a remote position on the frame.
Claims12
A hinge for a window comprising a sash openable relative to a peripheral frame about a pivot axis extending transversely of the frame in the mid-region between upper and lower edges thereof, said hinge comprising:
- a body adapted to be secured to said peripheral frame and affording a first pivot formation;
- support means pivotally connected to said body at said first pivot formation and adapted to be connected to said sash to support the latter, said support means also affording a further pivot formation spaced from said first pivot formation to move in an arcuate path thereabout;
- a stay member having one end connected to said support means at said further pivot formation and its other end constrained for reciprocation within the body;
- and
- constraining means arranged to engage said stay member within said body to constrain movement thereof at least one operative position of the stay member.
A hinge according to any one of the preceding claims wherein said support means provides means for ready detachment of the sash of the window from the hinge.
Dependencies are inferred from the claim text.