Lifting device including a sledge system for installation in a roof window and a roof window comprising such a lifting device

摘要

The lifting device (10) is intended for a roof window comprises a lifting arm (14), a spring assembly (20) with a first coupling member, and a sledge system (30) configured to be slidably connected to one part of the roof window and including a sledge (31) and a second coupling member configured to cooperate with the first coupling member. A first end (12) of the lifting arm (14) is rotatably connected with the sledge system (30) and a second end (13) is configured to be connected to another part of the roof window. The sledge system (30) furthermore comprises a runner (32) with at least two faces, arunner inner face and a runner outer face, that the sledge (31) has at least two faces, a sledge inner face and a sledge outer face, the runner (32) comprising at least one wall portion (321, 322), and being configured to accommodate said sledge (31) against said runner inner face, and that said runner (32) is provided with at least one recess (324) opposite a respective receiving recess (314) in said sledge (31), said recesses (314, 324) forming part of said second coupling member.