| 摘要 |
A roller assembly for a horizontally opening retractable screen having a flexible screen with upper and lower toothed edges, upper and lower guide tracks, each track having an elongate retaining channel in which a respective upper and lower edge of the flexible screen is received; the assembly comprising a roller (26) onto which the flexible screen (24) is rolled when the screen is open and from which the flexible screen is unrolled when the screen is closed; and a guide arrangement 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 defining a guide passage (61) 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 within the exit aperture (64) as it passes therethrough. ?I 2-6 2--7 Z,_0 -70 Fi -zt |
