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A restrictor 10 comprises a support member (20, fig. 4) to attach to a sash frame 11 and a track blocking member (30, fig. 4) to extend across part of a diameter of a track member 51 of a friction hinge 50. In a track blocking configuration, the track blocking member blocks the movement of a slider 54 along the track member to limit the extent of opening of the friction hinge. The restrictor is designed to be retrofitted to a window without replacing the friction hinge. There may be a magnet (31, fig. 4) to hold the track blocking member to the track member 51.The support and track blocking members may be releasably connected, e.g. via screws through holes (24, 33; fig. 4) or via a cap member (60, fig. 4) with spring clips (61, 142; fig. 7) or magnets (141, fig. 8A).The restrictor may also include a cammed lock (270, fig. 10). There may be a second portion of the track blocking member (80, fig. 13B) that extends along the track. Independent claims are included for a kit for the restrictor and for a friction hinge including the restrictor.
A restrictor 10 comprises a support member (20, fig. 4) to attach to a sash frame 11 and a track blocking member (30, fig. 4) to extend across part of a diameter of a track member 51 of a friction hinge 50. In a track blocking configuration, the track blocking member blocks the movement of a slider 54 along the track member to limit the extent of opening of the friction hinge. The restrictor is designed to be retrofitted to a window without replacing the friction hinge. There may be a magnet (31, fig. 4) to hold the track blocking member to the track member 51.The support and track blocking members may be releasably connected, e.g. via screws through holes (24, 33; fig. 4) or via a cap member (60, fig. 4) with spring clips (61, 142; fig. 7) or magnets (141, fig. 8A).The restrictor may also include a cammed lock (270, fig. 10). There may be a second portion of the track blocking member (80, fig. 13B) that extends along the track. Independent claims are included for a kit for the restrictor and for a friction hinge including the restrictor.
A restrictor for a friction hinge
GIOVANNI LAPORTA (author)
2022-02-16
Patent
Electronic Resource
English
IPC:
E05D
Scharniere oder andere Aufhängevorrichtungen für Türen, Fenster oder Flügel
,
HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS, OR WINGS
/
E05C
Riegel oder Feststellvorrichtungen für Flügel, insbesondere für Türen oder Fenster
,
BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS