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A limiter assembly for a closure member such as a window which can restrict the opening of a window but can be released to allow unrestricted opening. The assembly comprises a common housing 12 from which extend two elongate limiting members, preferably flexible e.g. cord, cable, chain, 18, 20. The limiting members are releasably engaged with first and second latch mechanisms 14. The limiting members/cables are spring biased to retract into the housing upon release from the latch mechanism, preferably by a constant force spring. Preferably limiting cables have shouldered tapered locking ends which automatically re-engage with the latch mechanism upon closure of the window. Latch mechanisms are preferably spring biased and operating by a button. Spacing the first and second latch mechanisms apart improves child safety. Preferably the housing includes guide channels and rotating wheels/hub to guide movement of the limiting cables.
A limiter assembly for a closure member such as a window which can restrict the opening of a window but can be released to allow unrestricted opening. The assembly comprises a common housing 12 from which extend two elongate limiting members, preferably flexible e.g. cord, cable, chain, 18, 20. The limiting members are releasably engaged with first and second latch mechanisms 14. The limiting members/cables are spring biased to retract into the housing upon release from the latch mechanism, preferably by a constant force spring. Preferably limiting cables have shouldered tapered locking ends which automatically re-engage with the latch mechanism upon closure of the window. Latch mechanisms are preferably spring biased and operating by a button. Spacing the first and second latch mechanisms apart improves child safety. Preferably the housing includes guide channels and rotating wheels/hub to guide movement of the limiting cables.
Limiter assembly for a window
MICHAEL DERHAM (author)
2018-03-14
Patent
Electronic Resource
English
IPC:
E05C
Riegel oder Feststellvorrichtungen für Flügel, insbesondere für Türen oder Fenster
,
BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS