Festooned Trim Clip System for Foam Substrate Attachment
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Solution Overview
Problem
Existing methods for attaching trim covers to resilient substrates, such as foam in vehicle upholstery, are inefficient, labor-intensive, and prone to material waste, with permanent joints being difficult to repair and potentially hazardous due to metal components, while detachable solutions are costly and require significant material.
Innovation Solution
A system of single or multi-ganged clips arranged in a festooned grouping, with male and female connectors allowing for easy handling and angular rotation, can be stored and dispensed efficiently, featuring chemical adhesion to foam substrates and easy detachment mechanisms, enabling secure and durable attachment without excessive material usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional hog-ring methods are used to attach trim covers, then secure permanent attachment is achieved, but repair difficulty and labor skill requirements increase significantly
Solution Approach 1:
The attachment system is divided into separate components: a clip with legs that can be inserted into the substrate, and a separate trim cover. This segmentation allows the clip to be permanently secured while the trim cover remains detachable, enabling easy repair without damaging the substrate.
Solution Approach 2:
The metal wire component is extracted and replaced with a plastic or resin clip that has insertion legs. This extraction eliminates the need for complex metalworking while maintaining secure attachment, and the simplified clip structure enables easier installation and repair.
2Reliability
If hog-ring tools are used for extended periods, then secure attachment is achieved, but worker injuries such as carpal tunnel syndrome occur
Solution Approach 1:
The complex mechanical hog-ring tool is replaced with a simple clip insertion method. The clip is pushed into the substrate using minimal force, eliminating the need for high-force mechanical tools and reducing worker strain and injury risk.
3Strength
If metal components are used in seats with heating elements, then structural strength is provided, but heat and electricity conduction hazards arise
Solution Approach 1:
The metal wire is replaced with a plastic or resin clip that is sufficiently strong for the application. While plastic has lower strength than metal, it provides adequate attachment security while eliminating conductive hazards, and the clip can be easily replaced if needed.
4Ease of repair
If detachable fastener connections are used, then repairability and ease of application are improved, but material consumption and cost increase significantly
Solution Approach 1:
The clip is pre-formed with legs that are designed to be inserted into the substrate in a single action. This preliminary preparation eliminates the need for complex fastening mechanisms and reduces material consumption compared to traditional detachable fasteners.
5Reliability
If clips are molded into trenches during foam construction, then permanent attachment is achieved, but manufacturing complexity and skill requirements increase
Solution Approach 1:
The attachment system separates the clip insertion step from the foam construction process. The clip is inserted into pre-formed trenches after the foam is constructed, eliminating the need for complex integrated molding processes and reducing manufacturing complexity.
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 system enhances handling efficiency, reduces material waste, and provides secure, durable attachment of trim covers to foam substrates, allowing for easy repair and minimizing detachment, while avoiding the hazards associated with metal components.
Implementation Method 1
the clips can be constructed from a material that reacts chemically with the foam in a liquid state
Data Source
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AI summary
This invention provides a single or multi-ganged clip (412) that can be grouped into a festooned arrangement. Each clip (412) includes a base (520) with opposing ends aligned in the direction of extension and transverse to an elongation direction for a connecting segment between ganged clip members. The base ends include opposing male (510) and female (512) connectors. The male connector is a cylinder with an axis that extends transverse to the direction of elongation and the female connector defines a conforming cylindrical inner diameter, which allows it to nest over the male cylinder. A gap (530) opening at the far edge of the female connector provides clearance for the base that connects the male cylinder to the clip member base end. This gap is sized to allow a range of angular rotation of the male connector within the female connector. Clips can be dispensed in a continuous grouping/segment from a spool.