| 摘要 |
The present invention relates to a lead-through structure for a wall, said structure comprising two frame like parts interconnecting from each side of said wall, a first male part (10) comprising a set of locking tongues (11, 11A) extending from a circumferential plane oriented in the general direction of said wall towards said wall and extending in the direction of corresponding edges of said frame, said locking tongues (11, 11A) interacting with counter slots located, recessed against said wall, in a female second part (1) and being directed in the direction of said edge of said frame. Each locking tongue (11, 11A) comprises at least one locking claw (17) extending essentially in the direction of a corresponding edging (3) of said frame, said claw (17) extending from the side surface of said tongue. Each counter slot (6) comprises at least one counter shoulder (7) co-operating with said locking claw (17), said counter shoulder (7) also extending in the direction of said corresponding edging (3) of said frame. The invention is especially useful as a window framing in walls or the like having a sandwich structure. |
