Egress Window Assembly Manual Separation Mechanism
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Solution Overview
Problem
Conventional egress window assemblies in recreational vehicles and prefabricated structures are complex and heavy, lacking a reliable and lightweight emergency egress mechanism, making them difficult to install, repair, and replace.
Innovation Solution
A three-piece window frame design with an outer egress frame that can be manually separated, accompanied by an interior and exterior frame, and a release mechanism using rotating handles and internal slide bars to securely detach the egress frame, allowing for easy installation, repair, and replacement, and accommodating various window panes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional two-frame egress window assemblies are used, then the window can be secured with screws and fasteners, but the assembly becomes complex and heavy
Solution Approach 1:
The window assembly is divided into three separate frames: an interior frame, an exterior frame, and an egress frame. This segmentation allows each frame to perform its specific function independently, reducing overall complexity while maintaining security. The egress frame can be manually separated from the interior and exterior frames during emergencies without compromising the structural integrity of the main window assembly.
Solution Approach 2:
The egress frame is extracted as a separate, removable component from the conventional two-frame assembly. This extracted egress frame includes its own locking mechanism that can be independently operated to provide emergency egress, eliminating the need for complex multi-frame configurations while maintaining security through the removable design.
2Reliability
If conventional egress window assemblies are used, then the window can be secured, but the assembly becomes heavy
Solution Approach 1:
By segmenting the window assembly into three lighter frames rather than one heavy conventional assembly, the overall weight is reduced. Each frame can be optimized for its specific function, allowing the use of lighter materials and designs that collectively weigh less than traditional single-piece egress window assemblies while maintaining structural security.
3Reliability
If conventional egress window assemblies are used, then the window can be secured, but installation, repair, and replacement become difficult
Solution Approach 1:
The three-frame design with standardized interfaces between interior, exterior, and egress frames enables modular assembly and disassembly. This segmentation allows for easy installation by simply joining the frames together, facilitates repair by allowing individual frame replacement, and simplifies maintenance without compromising the security provided by the locking mechanisms.
Solution Approach 2:
The egress frame incorporates a dynamic locking mechanism that can transition between locked and unlocked states through manual operation. This dynamic feature allows the frame to be securely attached during normal operation for security, yet easily separated during emergencies or maintenance, providing both security and ease of operation.
4Reliability
If conventional egress window assemblies are used, then the window can be secured, but the egress mechanism becomes complex
Solution Approach 1:
The egress mechanism is extracted as a separate function within the egress frame, independent of the interior and exterior frames. This extracted design simplifies the overall egress mechanism by removing unnecessary components and interfaces, allowing for a more straightforward locking and unlocking system that maintains reliability while reducing complexity.
Data Source
AI summary
The egress window assembly uses a three piece window frame design that allows an outer egress frame to be manually separated from the window assembly to provide emergency egress from the vehicle or structure. In addition to the egress window frame, the egress window assembly includes an egress window frame, an interior window frame, an exterior window frame and a release mechanism that detachably secures the egress frame to the exterior window frame. The release mechanism uses rotating handles on the interior window frames and internal slides bars that shift between the locked and unlocked positions that free the egress frame from the egress window assembly.