One-Piece T-Shaped Bed Frame Member With Strengthening Fillets
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Solution Overview
Problem
Existing T-shaped bed frame members, while useful, face challenges in manufacturing efficiency and strength due to conventional construction methods that often involve joining two L-shaped angle irons, which can compromise their structural integrity and ease of production.
Innovation Solution
A unitary, one-piece T-shaped bed frame member is designed with a wide flange and a short flange, featuring two fillets formed by circular arcs that intersect to enhance manufacturing capabilities and strength, allowing for the member to be used as a side rail, cross member, or other structural components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional construction methods joining two L-shaped angle irons are used, then manufacturing simplicity is maintained, but structural strength and integrity deteriorate
Solution Approach 1:
The patent merges two separate L-shaped angle irons into a single unitary T-shaped bed frame member. This consolidation eliminates the need for joining operations while creating a structurally stronger integrated component that resists bending and twisting forces more effectively than assembled parts.
2Manufacturing precision
If conventional joining methods are used, then ease of manufacture is maintained, but manufacturing precision and structural integrity worsen
Solution Approach 1:
The T-shaped bed frame member is formed as a complete, integrated unit during the initial manufacturing process rather than assembling multiple components later. This preliminary formation of the final structure eliminates subsequent joining operations and ensures structural integrity is built-in from the start.
3Strength
If a unitary one-piece T-shaped member is used, then strength and structural integrity improve, but manufacturing complexity increases
Solution Approach 1:
The patent employs specific geometric parameters in the design of the T-shaped member, including optimized flange dimensions, thickness ratios, and fillet radii at the intersection. These parameter optimizations enable the complex shape to be manufactured using standard forming processes while maintaining structural strength.
Solution Approach 2:
The patent incorporates fillets with specific radii at the intersection of the flanges where circular arcs meet to form straight lines. These curved transitions eliminate stress concentration points that would occur with sharp corners, enabling the unitary structure to maintain high strength while being manufacturable with standard processes.
Data Source
AI summary
A unitary, one piece, T-shaped bed frame structural member. The member is usable as a side rail, a cross member or any other structural member of a bed frame. The T-shape includes a wide flange forming the large member of the T-shape with a short flange extending outwardly from the wide flange at about the center thereof. At the intersection of the wide and short flanges, two fillets are formed therebetween that are similar in shape and have a series of circular arcs having predetermined radii and the circular arcs meet together forming a straight line along the longitudinal length of the structural member. The presence and shape of the fillets improves the strength and manufacturability of the T-shaped bed frame structural member or members.