Roof Window Hinge Assembly for Stepwise Installation and Maintenance
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Solution Overview
Problem
Existing roof windows, particularly those installed in inclined roof surfaces, face challenges in balancing thermal efficiency, aesthetic appeal, and low profile installation, while also requiring easy handling and installation processes that meet conservation requirements.
Innovation Solution
A roof window design featuring a hinge assembly with a coupling unit that allows the frame and sash to be handled independently, enabling step-wise mounting and multiple operational positions, including a second operational condition for easy access and maintenance, facilitated by a bayonet-like connection and biased lock elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the frame and sash are connected through a integrated hinge assembly, then the structural integrity and stability are improved, but the ease of installation and handling deteriorates due to the need to disassemble hinge connections
Solution Approach 1:
The hinge assembly is segmented into a coupling unit connected to the frame and a hinge unit connected to the sash. This segmentation allows the frame and sash to be handled independently during installation, as the coupling unit remains fixed to the frame while the hinge unit attaches to the sash, eliminating the need to disassemble integrated hinge connections.
Solution Approach 2:
The coupling unit acts as an intermediary component between the frame and hinge unit. It provides a fixed attachment point on the frame that receives the hinge unit, enabling easy connection and disconnection of the sash while maintaining structural integrity through the mediated connection.
2Reliability
If the hinge connection is designed for secure attachment, then the reliability is improved, but the ease of repair and maintenance deteriorates due to limited access
Solution Approach 1:
The segmentation of the hinge assembly into separable coupling and hinge units allows maintenance personnel to easily detach the hinge unit from the coupling unit for maintenance access, while the secure attachment is maintained during normal operation through the designed connection mechanism.
Solution Approach 2:
The hinge assembly transitions from a static secure connection during operation to a dynamically separable connection during maintenance. The coupling unit and hinge unit can be easily disconnected and reconnected, providing both reliable attachment and easy maintenance access.
3Shape
If the roof window is designed with a low profile, then the aesthetic appeal and suitability for conservation areas is improved, but the ease of operation deteriorates due to reduced space for mechanical components
Solution Approach 1:
The segmented hinge assembly allows compact positioning of mechanical components. The coupling unit and hinge unit can be arranged in a space-efficient configuration that maintains the low profile requirement while preserving full operational functionality of the roof window.
Data Source
AI summary
In the roof window, the hinge assembly (9) comprises a coupling unit (95) connected to or connectable to the frame (2) and configured to be connected to the hinge unit (91) in the mounted condition of the roof window (1). In an installation condition of the roof window (1), the hinge unit (91) is connected to the sash (3) and the coupling unit (95) is connected to the frame (2).