Trapdoor-insert assembly comprising an insert hooked to the trapdoor
OwnerAndrea Marinelli, Danilo Cascia +1inventors
InventorsAndrea Marinelli, Danilo Cascia, Tommaso Raggetti
Life of this patent
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Abstract
A 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 positions 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.
Claims6
A trapdoor-insert assembly comprising:
- a trapdoor having a front side and a back side, said trapdoor having a fixed frame adapted to being fixed to an opening in a wall, said trapdoor having a movable frame disposed in the fixed frame, said trapdoor having a panel mounted on the movable frame, wherein a connector is affixed to the back side of said trapdoor so as to connect the movable frame to the fixed frame such that the movable frame is movable between an opening position and a closing position;
- a longitudinal seat formed on or affixed to at least one section of the movable frame adjacent the front side, said longitudinal seat defined by a bottom wall and a pair of side walls, wherein the pair of side walls comprises a pair of projecting wings in opposing parallel positions and extending for an entire length of the longitudinal seat so as to define a narrowed inlet that provides an access to said longitudinal seat;
- and
- an insert having an operation portion and a coupling body, the coupling body having a pair of retaining teeth that extend in opposite directions and are engaged respectively under the pair of projecting wings, wherein the pair of retaining teeth are movable toward each other until the pair of retaining teeth reach a position such that the pair of retaining teeth are able to pass through the narrowed inlet along a direction that is generally orthogonal to the bottom wall, wherein the pair of retaining teeth are movable away from each other so as to be respectively engaged under the pair of projecting wings, wherein the operation portion comprises an arm which protrudes from the coupling body and is configured to intercept the fixed frame when the movable frame is moved from the closing position to the opening position so as to stop a travel of the movable frame.
Dependencies are inferred from the claim text.