Roller assembly and guide for a retractable screen

摘要

A roller assembly for a horizontally opening retractable screen has a flexible screen with upper and lower toothed edges. Upper and lower guide tracks each have an elongate retaining channel in which an upper and lower edge of the flexible screen is received. The assembly comprises a roller onto which the flexible screen is rolled when the screen is open and from which the flexible screen is unrolled. A guide arrangement is associated with the lower end of the roller that guides the lower toothed edge of the screen into the elongate retaining channel of the lower guide track. The guide arrangement defines a guide passage having an exit aperture through which the lower toothed edge passes during unrolling that communicates with the lower guide track retaining channel, wherein the toothed edge is retained from being pulled out of the exit aperture as it passes therethrough.

主权项

1. A roller assembly for use with a horizontally opening retractable screen including a flexible screen with an upper toothed edge, and for use with an upper guide track having an upper elongate retaining channel in which the upper toothed edge is received, said roller assembly comprising:
a roller having an upper end and a lower end, said roller being configured to permit rolling of the flexible screen thereon when the flexible screen is open and unrolling of the flexible screen therefrom when the flexible screen is closed; an upper end cap having an upper end cap body to which said upper end of said roller is rotatably mountable; and an upper guide arrangement comprising an upper guide member that is engageably receivable within said upper end cap body so as to define an upper guide passage with a first side wall of said upper guide passage defined by said upper guide member and a second side wall of said upper guide passage defined by an inner surface of said upper end cap body, said upper guide passage having an upper exit aperture through which the upper toothed edge passes during unrolling of the flexible screen and is configured to communicate with the upper elongate retaining channel, said first side wall having a first upper guide rail that is upwardly inclined towards said upper exit aperture and said second side wall having an opposite second upper guide rail that is upwardly inclined towards said upper exit aperture for guiding the upper toothed edge upwards towards said upper exit aperture, said upper exit aperture being configured to retain the upper toothed edge from being pulled out of said upper exit aperture as the upper toothed edge passes through said upper exit aperture.