| 摘要 |
It consists of four lengths of a hollow section (2), the two internal corners of which (2a, 2b) are symmetrical and each include a recess having two perpendicular walls (3, 4 - 5, 6) each provided with a groove (3a, 4a, 5a, 6a) for housing seals (7, 8) which hold two glazing panels (9, 10), whereas the outer face of the section forms steps having grooves (18, 20) for fixing seals (19, 21) which form a seal with the fixed frame (17), the section (2) comprising a longitudinal internal partition (22) which defines a channel (23) which, in the top part of the frame (1), is limited by two stoppers (plugs) in order to form a chamber which communicates with the outside and with the inter-glass space via passages (23a, 25) having identical cross-sections. <IMAGE>
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