Lifting device including a sledge system for installation in a roof window, and roof window comprising such a lifting device
A sliding frame and window technology, which is applied to the suspension devices of wing sashes, roofs, door/window accessories, etc., and can solve problems such as damage, poor fit of components, and deterioration of results.
Active Publication Date: 2020-07-07
VKR HLDG AS
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AI Technical Summary
Problems solved by technology
Movement of the metal sliding shoe on the guide or frame member creates friction which may lead to erratic sliding of the sliding shoe and thus imprecise operation of the roof window lift
Furthermore, over time, the same friction creates wear on the sliding shoe and the corresponding guide or frame member, leading to a poor fit between the parts, which only worsens the result.
Given the extensive damage to the sliding shoe, frame and / or guides, possible solutions may be limited to replacing the entire lifting device or even the entire roof window frame
Method used
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[0038] First refer to figure 1 , shows the general configuration of a roof window which is top hinged during normal operation and which pivots for cleaning. Such a window is shown and described in more detail in the applicant's above-mentioned European Patent No. 0 733 146 B1, the content of which is hereby incorporated by reference. exist figure 1 , a lifting device 10 is shown, now also refer to figure 2 Turning to Figure 9, the lifting device 10 forms part of a first embodiment of a roof window according to the invention.
[0039] The roof window comprises a main frame in the form of a fixed frame 1 configured to be installed in a sloped roof surface. The fixed frame 1 is connected to at least one subframe, in the embodiment shown, a first subframe in the form of a sash 2 carrying a pane 4 and a second subframe in the form of an intermediate frame 3 . Second frame. The middle frame 3 is fastened to the fixed frame at the top mounting fitting 5 and the sash 2 is hinged...
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A 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, a runner 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.
Description
technical field [0001] The invention relates to a lifting device for roof windows, in particular for roof windows installed in sloped roof surfaces, the lifting device comprising: a lifting arm; a spring assembly having a first coupling member; and a carriage system, The carriage system is configured to be slidably connected to a portion of a roof window, and the carriage system includes a carriage and a second coupling member configured to cooperate with the first coupling member, wherein the lift arm The first end of the roof window is rotatably connected to the carriage system and the second end is configured to be connected to another part of the roof window. The invention also relates to a roof window incorporating such a lifting device. Background technique [0002] In roof windows installed in sloping roof surfaces and operated wholly or partly around the top hinge axis, it is known to balance at least part of the weight of the movable part by means of lifting device...
Claims
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IPC IPC(8): E05D15/40E05F1/10E04D13/035
CPCE04D13/035E05F1/10E04D13/0354E04D13/0357E05D15/406E05F1/1058E05F1/1075E05Y2201/214E05Y2201/474E05Y2201/624E05Y2600/522E05Y2600/528E05Y2900/152
Inventor 拉塞·温瑟·赫德耶斯佩尔·赖伯格
Owner VKR HLDG AS