Closure fasteners – Operators with knobs or handles
Patent
1991-01-31
1992-04-07
Nicholson, Eric K.
Closure fasteners
Operators with knobs or handles
292 39, 292142, F05C 918
Patent
active
051021749
ABSTRACT:
A gearing for use in a fitting for a door leaf or window leaf having a frame profile including a guide groove on the movable frame open in the direction of the rabbet space between the movable and stationary frames of the door or window. The positioning rod gearing comprises a partially insertable gearing housing (7) and a guide section (7c). A connecting slide (19) is supported in a longitudinally shiftable manner in the housing guide part (7c) which slide comprises a coupling extension (21) on at least one end for coupling a positioning rod (22). A drive pinion (13) which is rotatably supported in the housing (7) can be rotated by means of an operating handle of the positioning rod gearing and meshes with a cogging (17) of the connecting slide (19). The drive pinion (13) is a stepped pinion having a large gear rim (13a) which meshes with the cogging (17) of the connecting slide (19) whereas the smaller gear rim (13b) meshes via a transmission pinion (12) with an actuating pinion (11) which can be rotated by an operating handle. The invention is particularly useful in an espagnolette fitting for a window or door.
REFERENCES:
patent: 1119875 (1914-12-01), Richards
patent: 1179731 (1916-04-01), McDonald
patent: 1504176 (1924-08-01), Wright
patent: 1900503 (1933-03-01), Kemp
patent: 2393788 (1946-01-01), Lofgren
patent: 4335816 (1982-06-01), Rager
patent: 4616864 (1986-10-01), Douglas
Ferco International Usine de Ferrures de Batiment
Nicholson Eric K.
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