Roof window

By designing a roof window lifting device including a lifting arm, a carriage guide, a spring assembly and an adjustment arm, the problems of inconvenience and safety hazards of roof window lifting devices in the prior art are solved, and stable and safe roof window operation are achieved.

CN222667350UActive Publication Date: 2025-03-25VKR HOLDING AS
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Patent Information

Application Number
CN202323470313.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Priority Date
2022-12-19
Filing Date
2023-12-19
Publication Date
2025-03-25
Estimated Expiration
2033-12-19

AI Technical Summary

Technical Problem

The lifting device of existing roof windows has problems of inconvenience and safety hazards when providing force balance, especially when used under different roof inclinations.

Method used

A lifting device including a lifting arm, a carriage guide, a spring assembly and an adjusting arm is designed. The lifting arm has a first end and the carriage rotatably connected, the second end and the subframe, the carriage slidably connected in the guide to the main frame, the spring assembly is coupled to the carriage, and the adjustment arm is coupled to the lifting arm and the carriage guide to balance the force applied to the central plane.

Benefits of technology

The stable and safe operation of roof windows is achieved, ensuring smooth opening and closing in different motion modes, avoiding operational difficulties and safety risks caused by improper force balance.

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Abstract

The utility model relates to a roof window (100). In the roof window (100), the lifting device (10) further comprises a lifting arm (14) inserted between the main frame (1) and the at least one sub-frame. The lifting arm (14) has a first end (12) which is rotatably connected to a carriage (30) which is slidably connected to the main frame (1) in a carriage guide (16) and a second end (13) which is rotatably connected to the at least one sub-frame. The lifting device (10) also includes a spring assembly (20) configured to be coupled to the carriage (30). The lift arm (14) and the carriage guide (16) extend lengthwise defining a central plane (P).
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