Thin-Profile Self-Closing Hinge with Nested Magnets and Coplanar Damping
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Solution Overview
Problem
Existing hinges for gates and shower doors face issues with mechanical wear due to insufficient biasing force from springs, excessive vibration leading to structural wear, and high manufacturing costs due to large magnetic elements and thick profiles, which also require significant material usage.
Innovation Solution
A hinge design featuring insert components with magnetic elements located between panel faces, coplanar dampeners to reduce vibration, and a thinner profile, along with a torsion spring and spring-loaded components to enhance biasing and stability, reducing material usage and manufacturing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If magnetic elements are made large and strong to provide sufficient biasing force, then the self-closing function is improved, but the hinge thickness and material usage increase
Solution Approach 1:
The magnetic elements are nested within cavities in the hinge plates, with the first magnetic element housed in the first hinge plate and the second magnetic element housed in the second hinge plate. This nesting arrangement allows the magnetic elements to be contained within the hinge structure without increasing the overall hinge thickness, while still providing sufficient magnetic biasing force to keep the gate closed.
2Speed
If dampeners are oriented orthogonally to control closing action, then the closing speed control is improved, but the hinge thickness and manufacturing cost increase
Solution Approach 1:
The dampeners are reoriented from an orthogonal arrangement (which would require significant thickness) to a configuration where they extend between the hinge plates in a direction substantially parallel to the plane of the hinge members. This dimensional change allows the dampeners to effectively control closing speed while minimizing the hinge's overall thickness.
3Force
If magnetic elements are made large to provide sufficient biasing force, then the self-closing function is improved, but the manufacturing cost and material usage increase
Solution Approach 1:
The magnetic elements are nested within cavities in the hinge plates, allowing compact integration without increasing overall dimensions. This nesting enables the use of adequately sized magnetic elements for sufficient biasing force while minimizing the total material required for the hinge structure.
Solution Approach 2:
The hinge plates are designed with localized cavities only where needed to house the magnetic elements, rather than increasing the thickness of the entire hinge structure. This localized approach reduces overall material usage while providing the necessary space for the magnetic elements to generate sufficient biasing force.
4Strength
If the hinge structure is made robust to bear weight and accommodate deep cavities, then the structural strength is improved, but the manufacturing cost and material usage increase
Solution Approach 1:
The cavities for housing magnetic elements are nested within the hinge plates, utilizing the existing structural material efficiently. This nesting allows the hinge plates to maintain their strength while accommodating the necessary cavities without requiring additional material or increasing overall thickness.
Solution Approach 2:
The hinge plates are designed with localized reinforcement and cavities only where structurally necessary, rather than uniformly increasing thickness throughout. This localized approach maintains structural strength for bearing weight while minimizing overall material usage.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The design minimizes vibration-induced wear, reduces material requirements, and lowers production costs while maintaining effective self-closing functionality.
Implementation Method 1
a first magnetic element housed within the front hinge plate of the first hinge member... a second magnetic element housed within the tongue component of the second hinge member... configured to have an overlapping arrangement in the closed position
Implementation Method 2
spring-loaded components to enhance biasing and stability
Data Source
AI summary
A hinge including: a first leaf assembly accommodating a portion of a first panel having a first cut-out section, the first leaf assembly including a first insert component which is tight fittingly receivable within the first cut-out section; a second leaf assembly, hingedly coupled to the first leaf assembly, for accommodating a portion of a second panel having a second cut-out section; a spring operatively coupled to the first and second leaf assemblies to bias the hinge to move from an open position to a closed position; and a dampener to dampen movement of the hinge from the open position to the closed position, wherein said longitudinal dampener axis is disposed between and substantially parallel with planes defined by respective opposing faces of the first panel.