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US 2009/0267358 A1Published application
Cremone-Bolt Door-Locking Device
AssigneeAdler S.A.S.
InventorsEric Michel Yves Bourgain, Christophe Martin, Jean-Jacques Masson
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Abstract
Cremone-bolt door-locking controlled by rack-and-pinion means. The cremone-bolt rod is connected to a first rack support that is slidably mounted inside a housing that houses a second slidably mounted rack support, each rack support carrying a rack segment in engagement with a pinion, at least one rack segment being hinged to its own rack support and being provided with a set of teeth that is extended over a curved portion of its end.
Claims10
A cremone-bolt door-locking device comprising at least one cremone-bolt rod projecting from one end of an elongate housing, wherein:
- said cremone-bolt rod is connected to a first rack support that is slidably mounted inside the housing;
- said housing houses a second rack support slidably mounted inside said housing and installed facing the first support rack;
- each rack support carries a rack segment provided with a set of teeth in engagement with a pinion installed between the two rack segments;
- at least one rack segment is hinged to its own rack support;
- and
- the set of teeth of said hinged rack segment is extended over a curved portion of a free end of said segment so as to enable said hinged rack segment to pivot at the end of the stroke and to be braced, thereby making movement of said cremone-bolt rod irreversible.
3 more elements
Dependencies are inferred from the claim text.