Resilient Glazing Bead for Damage-Free Frame Installation
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Solution Overview
Problem
Existing glazing beads require significant skill and time to install and remove, often resulting in damage to the frame, bead, or gasket, especially when replacing glazing units in different frame materials like PVC and aluminium.
Innovation Solution
A bead design featuring a body with a resiliently deformable member, including a first finger and a second finger, allowing for easy assembly and disassembly by applying an external force to the distal end of the second finger, which releases the bead from the frame without direct force application to the second finger.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional glazing bead is used to secure glazing units, then the glazing is held securely in the frame, but the installation and removal process requires considerable skill and time
Solution Approach 1:
The bead is divided into a body portion and a resiliently deformable member portion that can move relative to each other. The deformable member includes fingers that can be deflected to disengage from the frame, allowing the bead to be removed without damaging the frame or requiring significant force.
Solution Approach 2:
The bead incorporates a resiliently deformable member that can dynamically change its configuration. During installation, the deformable member is flexed to engage with the frame; during removal, it is flexed again to disengage, enabling easy installation and removal while maintaining secure holding when engaged.
2Ease of operation
If force is applied to remove a traditional glazing bead, then the bead can be removed from the frame, but damage occurs to the frame, bead, or gasket
Solution Approach 1:
The separation of the resiliently deformable member from the rigid bead body allows the deformable member to absorb removal forces through elastic deformation, preventing force transmission to the frame or gasket that would cause damage.
Solution Approach 2:
The bead changes its mechanical properties through the deformation of the resiliently deformable member. During removal, the member's elasticity allows it to flex and return to its original shape without permanent deformation or damage to other components.
3Ease of repair
If glazing needs to be replaced in a PVC frame, then the glazing can be accessed, but the entire wedge gasket must be removed causing damage and requiring replacement
Solution Approach 1:
The bead design allows the resiliently deformable member to be deflected independently to release the bead from the frame. This segmentation enables glazing replacement without requiring removal of the entire gasket system, preserving the gasket for continued use.
4Ease of operation
If a sharp tool is used to force removal of a traditional glazing bead, then the bead can be pried off, but aesthetic damage and structural damage occur to the frame and bead
Solution Approach 1:
The resiliently deformable member is designed to be deflected by hand or simple tools to release the bead. The bead's own resilient structure provides the mechanism for removal, eliminating the need for sharp prying tools that would cause aesthetic or structural damage.
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 bead can be quickly and easily installed and removed without risking damage to the frame or bead, significantly reducing installation and replacement time and eliminating the need for specialized tools.
Implementation Method 1
a resiliently deformable member secured to the body and having a first finger extending from the body to a first end, and a second finger extending from the first finger to a free distal end
Data Source
AI summary
A bead for releasably securing a glazing unit to a frame member, comprising a body having a first end and a second end, and a resiliently deformable member secured to the body and having a first finger extending from the body to a first end, and a second finger extending from the first finger to a second end. The first end of the body and the first end of the first finger are configured to engage with respective first and second ends of a frame member so as to secure the bead to the frame member. The second end of the body is configured to secure a glazing unit against an opposed seal of the frame member. The body comprises a first material having a first stiffness and the deformable member comprises a second material having a second stiffness less than the first stiffness.