Hole Plug With Oblique Elastic Extension For Thickness Adaptation
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Solution Overview
Problem
Existing hole plugs fail to securely attach to openings in varying thickness members, leading to looseness due to their design, which is not adaptable to changes in member thickness.
Innovation Solution
A hole plug design featuring a body portion with a cover flange, insertion portion, and thermosoftening resin member with obliquely extending portions that elastically abut the member before melting, ensuring stable attachment regardless of thickness variations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the extension portion extends in parallel to the surface direction of the cover flange portion, then the hole plug can be temporarily fixed to the opening, but the extension portion cannot be abutted against the front side of the plate-shaped member when the thickness is thinner than predetermined, causing looseness
Solution Approach 1:
The extension portion is designed to be flexible rather than rigid, allowing it to dynamically adjust its position and angle. The extension portion can bend or deform to accommodate different member thicknesses, enabling reliable attachment across varying thickness conditions without causing looseness.
Solution Approach 2:
The extension portion's geometric parameters (such as length, angle, or cross-section) are designed to change or adapt based on the member thickness. This allows the extension portion to maintain effective contact with the front side of the member regardless of thickness variations, resolving the contradiction between attachment stability and thickness adaptability.
2Device complexity
If the extension portion is designed to extend in parallel to the surface direction, then the structure is simple, but it cannot respond to changes in member thickness
Solution Approach 1:
Rather than designing a complex adjustable mechanism, the extension portion utilizes its inherent flexibility to dynamically adapt to different thicknesses. This simple yet effective approach maintains low structural complexity while achieving high adaptability through the extension portion's ability to bend or deform as needed.
3Stability of the object's composition
If the extension portion does not bend, then the temporarily fixed state is stable in uniform thickness, but looseness occurs when thickness varies
Solution Approach 1:
The extension portion's geometric parameters (position, angle, or shape) are designed to change in response to member thickness variations. This allows the extension portion to maintain stable contact and prevent looseness across different thickness conditions while preserving the stability of the temporarily fixed state.
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 ensures stable and secure attachment of the hole plug to openings across different thicknesses, preventing looseness and maintaining sealing performance by adapting the thermosoftening resin's shape to fit varying member thicknesses.
Implementation Method 1
the meltable member is heated and melted
Implementation Method 2
the meltable member is heated and melted, such that the meltable member flows
Implementation Method 3
the extension portion is elastically abutted against a front side of the predetermined member
Data Source
AI summary
There is provided a hole plug including: a body portion including a cover flange portion that covers an opening, an insertion portion that is inserted into the opening, and at least one pair of engagement portions that is engaged with a back side peripheral edge of the opening; and a thermosoftening resin member that is fixed to a back side peripheral edge of the cover flange portion and that is configured to be heated and melted so as to fix the cover flange portion to a predetermined member. The thermosoftening resin member includes an extension portion extending obliquely outward toward the predetermined member, and the extension portion is elastically abutted against a front side of the predetermined member in a state where the engagement portion is engaged with the back side peripheral edge of the opening before melting of the thermosoftening resin member.