Fireplace Screen with Hinged Frame Sections for Easy Firebox Access
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Solution Overview
Problem
Existing fireplace screen designs are prone to corrosion and are cumbersome to operate, often requiring the entire screen to be moved aside to access the firebox, which can be heavy and inconvenient.
Innovation Solution
A fireplace screen with a frame featuring a horizontally oriented hinge allowing the upper and lower portions to rotate, and a latch mechanism for secure access, along with a track mechanism enabling panels to slide vertically or horizontally for easy access without removing the screen.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the entire screen is moved aside to access the firebox, then access to the fire is enabled, but the screen becomes heavy and cumbersome to operate
Solution Approach 1:
The screen is divided into multiple sections that can be independently moved. Instead of moving the entire screen, only specific panels need to be opened to access the firebox, reducing the effective weight that must be handled during operation.
Solution Approach 2:
The screen incorporates movable panels with hinges and tracks that allow dynamic opening and closing. This enables selective access to the firebox without requiring the entire screen structure to be displaced, making operation easier while maintaining protection when closed.
2Stability of the object's composition
If the screen is designed as a fixed structure, then stability is maintained, but access to the firebox requires moving the entire screen
Solution Approach 1:
The fixed screen structure is segmented into multiple panels connected by hinges. This allows the screen to maintain overall stability while enabling selective opening of individual panels for firebox access, combining the benefits of fixed stability with operational flexibility.
Solution Approach 2:
Hinges and track mechanisms are integrated into the fixed frame structure, creating controlled dynamic elements within an otherwise stable framework. The panels can pivot and slide along predetermined paths, providing smooth access while the main frame remains stationary and stable.
3Ease of operation
If vertical framed screen sections are hinged and configured to bi-fold or tri-fold, then access is improved, but the mechanism can be seized due to corrosion
Solution Approach 1:
Complex multi-hinge folding mechanisms are replaced with simpler track-based sliding systems. The panels move along guided tracks with minimal moving parts, reducing the number of joints that can corrode and seize, while still enabling easy access to the firebox.
Solution Approach 2:
The problematic hinge mechanisms are extracted and replaced with track-guided sliding systems. This removes the corrosion-prone multi-axis hinges while maintaining the folding or sliding motion needed for access, improving reliability by eliminating the seizure-prone components.
4Ease of operation
If the screen is supported on a horizontal track with multiple hangers, then access is improved, but the screen can be cumbersome to operate
Solution Approach 1:
The multiple hanger components are extracted and consolidated into simpler support mechanisms. The track system is simplified to require fewer hangers and less complex mounting hardware, reducing overall device complexity while maintaining smooth panel movement for firebox access.
Data Source
AI summary
A fireplace screen including a frame comprising an upper portion and a lower portion coupled at a hinge oriented horizontally and configured to rotatably adjust the upper portion; and a screen supported within the frame.