RAWLS DOES NOT VIBRATING SCREEN EQUIPPED WITH DUAL WINDOWS

摘要

PURPOSE: A double window equipped with a non-vibrated roll screen is provided to periodically remove air, which is brought from an air layer between glass plates, by actuating a vacuum maintaining rotator, thereby maintaining a vacuum state. CONSTITUTION: Elastic members(38) are coupled to both ends of a rod(36). The elastic members(38) are in contact with side frames(10b). A roller(40) is supported by a spring(S). A vacuum maintaining rotator(20) maintains an air layer(14) between glass plates(12) in a vacuum. A roll screen(30) is actuated in the air layer(14).