Adhesive Strip Gasket Structure That Prevents Stretching Gaps
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Solution Overview
Problem
Strip gaskets used in enclosures often stretch during assembly, leading to gaps and increased vulnerability to water and particulate ingress, and existing methods create seams that are prone to wear and damage.
Innovation Solution
A strip gasket design featuring a base with multiple adhesive strips, where one strip includes a non-stretchable carrier to prevent elongation and another to ensure a tight seal, or a single strip with distinct adhesive sections, one with a non-stretchable carrier and the other for adherence, to maintain a consistent seal without stretching.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If strip gaskets are placed in enclosure doors during assembly, then the gaskets can be installed and sealed, but the gaskets stretch during assembly causing gaps and separation over time
Solution Approach 1:
The adhesive strip is divided into two distinct sections: a first section with a non-stretchable carrier that prevents elongation, and a second section without a carrier that provides adhesion. This segmentation allows the gasket to be installed easily while preventing stretching during assembly and over time.
Solution Approach 2:
Different sections of the adhesive strip have different properties: the first section has a non-stretchable carrier for dimensional stability, while the second section has adhesive properties for bonding. This local differentiation resolves the contradiction between ease of installation and dimensional stability.
2Manufacturing precision
If strip gaskets are cut to tight corners for a precise fit, then the seal is improved, but the gaskets are vulnerable to wear and damage at the seams
Solution Approach 1:
The non-stretchable carrier is applied to the adhesive strip in advance during manufacturing, creating a pre-conditioned gasket that maintains its dimensional stability during installation and service. This preliminary action prevents the need for tight corner cuts that would create vulnerable seams.
3Area of stationary object
If multiple pieces of strip gaskets are used to cover a desired surface, then complete coverage is achieved, but seams are created that are vulnerable to wear and damage
Solution Approach 1:
The non-stretchable carrier maintains the continuous dimensional stability of the gasket throughout its entire length, preventing the formation of gaps or separation at joints. This continuity ensures that even when multiple pieces are used, the seal remains intact and resistant to wear at the seams.
4Manufacturing precision
If gaskets are stretched during assembly to fit tightly, then initial seal is achieved, but the gaskets shrink to original length over time causing separation
Solution Approach 1:
The adhesive strip is segmented into a first section with a non-stretchable carrier and a second section without. The non-stretchable carrier section prevents the gasket from shrinking back to its original length, maintaining the stretched dimension and tight seal over time.
Solution Approach 2:
The physical property of the adhesive strip is changed by adding a non-stretchable carrier, transforming it from a stretchable material to a dimensionally stable composite structure. This parameter change ensures the gasket maintains its stretched dimension and tight seal indefinitely.
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 solution prevents water and particulate ingress by maintaining a consistent seal and reducing wear, as the non-stretchable carrier prevents shrinkage and the additional adhesive ensures complete adhesion, even in the presence of voids or spaces.
Implementation Method 1
a first adhesive strip includes a first adhesive and a non-stretchable carrier for the first adhesive
Implementation Method 2
a first adhesive strip includes a first adhesive and a non-stretchable carrier for the first adhesive
Data Source
AI summary
Embodiments provide a strip gasket with one or more adhesive strips on the gasket. The strip gasket resists stretching because a non-stretchable carrier is located within an adhesive strip on the gasket which helps prevent the gasket from being stretched. The strip gasket is also able to create a tight seal when it is installed against a desired surface. This tight seal prevents water and other particulate matter from passing around the strip gasket.