This invention relates to roof window, in particular tilting wing skylight amelytetőablaknak has a window frame and a sash, which sash pivotally hőzzákapcsőlt segédkeretprőfilőksegítségével around a tilting axis operably mounted in its pivotal movement and in the horizontal position, and azablakszárnykeret middle part of the tilting axis, and whose tetőablaknakaz sash least one hőssztartóján there is a guide which is formed on the guiding track formed by the tilted opening of the window wing and the skylight having at least one chisel structure which slides as a piece tipping aid. In accordance with the present invention, the ratchet structure (17) is telescopically formed at one end and fixed in a rolling manner on the sash (3) and coincidentally cooperates with the support (22) on the glazing (2) at its free end. In addition, the support structure (22) is provided with a passageway (29) for the guide element (14). ŕ
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