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公开(公告)号:US20240044154A1
公开(公告)日:2024-02-08
申请号:US18359646
申请日:2023-07-26
申请人: AKIFIX S.P.A.
IPC分类号: E04F19/08
CPC分类号: E04F19/083 , E05Y2900/131
摘要: Trapdoor-insert assembly having a trapdoor with a fixed frame, a movable frame disposed in the fixed frame and a panel mounted on the movable frame. At least one of the frames including at least one section having a longitudinal seat defined by a bottom wall and by two sidewalls. The two sidewalls include two projecting wings in opposite parallel position that extend for the entire length of the section. The assembly also includes an insert, which is connected to the section and has an operating portion and a coupling body with two retaining teeth that extend along opposite directions and are engaged under the two projecting wings.