Bearing structure for roller shades

E - Fixed Constructions – 06 – B

Patent

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E06B 9/50 (2006.01) E06B 9/322 (2006.01) E06B 9/36 (2006.01)

Patent

CA 2245364

An improved bearing mechanism works in conjunction with the control rod of a vertical blind system (21) or a roller shade (101, 301) system to provide superior bearing and load handling capability. A series of cylindrical roller bearings (31, 187, 271, 333, 351), are supported within the grooves, and against a central rotational member having a conical bearing (151, 359,391) for bearing against the rollers. a set screw (29) may be used to control the seating of the central rotational member within the conical bore (53), is used to make up any tolerance created through the manufacturing process, and can be used to increase the tension necessary to hold a roller shade in place. A balanced bearing system uses two sets of roller bearings (31, 187, 271, 333,351), which may be frusto-conical, to make for a more stable, more secure, and more evenly balanced roller shade assembly.

Mécanisme de roulement amélioré à utiliser avec la tige de commande d'un système de stores verticaux (21) ou d'un système de stores (101, 301) permettant un roulement et un support de charge supérieurs. Une série de roulements à rouleaux cylindriques (31, 187, 271, 333, 351) sont soutenus à l'intérieur des rainures et contre un élément de rotation central ayant un roulement conique (151, 359, 391) de façon à rouler contre les rouleaux. Une vis de pression (29) peut être utilisée pour commander le siège de l'élément de rotation central à l'intérieur de l'alésage conique (53) et sert à corriger toute tolérance créée dans le processus de fabrication. Elle peut également servir à augmenter la traction nécessaire à retenir un store en place. Un système de roulement équilibré utilise deux séries de roulements à rouleaux (31, 187, 271, 333, 351), qui peuvent être tronconiques, afin d'assurer un ensemble de stores plus stable, plus sécuritaire et mieux équilibré.

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