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Counterbalance system for tilt-in window having a shielded brake shoe structure
A counterbalance system for a window sash that engages a guide track in a vinyl tilt-in window. At least one ribbon spring coil is used to create the counterbalance force. The ribbon spring coils are held in a brake shoe chassis that travels within the guide track of the window. A first protective barrier is attached to the brake shoe chassis. The first protective barrier travels externally of the guide track and shields the slot opening adjacent the spring placement area. A second protective barrier is attached to the brake shoe chassis inside the guide track. The second protective barrier shields the spring placements areas from contamination within the guide track. A brake mechanism is also attached to the brake shoe chassis. The brake mechanism uses a cam to spread arms against the side walls of the guide track when the window sash is tilted. This provides contact against three inside walls of the guide track, therein creating a lock.
Counterbalance system for tilt-in window having a shielded brake shoe structure
A counterbalance system for a window sash that engages a guide track in a vinyl tilt-in window. At least one ribbon spring coil is used to create the counterbalance force. The ribbon spring coils are held in a brake shoe chassis that travels within the guide track of the window. A first protective barrier is attached to the brake shoe chassis. The first protective barrier travels externally of the guide track and shields the slot opening adjacent the spring placement area. A second protective barrier is attached to the brake shoe chassis inside the guide track. The second protective barrier shields the spring placements areas from contamination within the guide track. A brake mechanism is also attached to the brake shoe chassis. The brake mechanism uses a cam to spread arms against the side walls of the guide track when the window sash is tilted. This provides contact against three inside walls of the guide track, therein creating a lock.
Counterbalance system for tilt-in window having a shielded brake shoe structure
KUNZ JOHN R (author)
2019-09-17
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
/
E05F
DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION
,
Vorrichtungen zum Bewegen der Flügel in die Offen- oder Schließstellung
/
E06B
Feste oder bewegliche Abschlüsse für Öffnungen in Bauwerken, Fahrzeugen, Zäunen oder ähnlichen Einfriedungen allgemein, z.B. Türen, Fenster, Läden, Tore
,
FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES, OR LIKE ENCLOSURES, IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
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