Folding End Cap with Linkage Pivot for Vehicle Shade
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Solution Overview
Problem
Existing vehicle roller shade assemblies face challenges in versatility across different vehicle models due to varying interior dimensions, requiring adjustable end caps that are easy to install and remove, while also reducing manufacturing costs and complexity.
Innovation Solution
A folding end cap design with a base and extension connected via a linkage, allowing for a 180° pivot between standard and folded positions, enabling adjustable length and easy installation/removal, suitable for use on one or both ends of the roller shade assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If spring loaded end caps are used to secure the roller within brackets, then the roller is kept in place with self-centering action, but the device becomes significantly more difficult to install or remove
Solution Approach 1:
The end cap is divided into two main segments: a base portion that remains attached to the roller and a removable cover portion. This segmentation allows the cover to be easily removed for installation/removal while the base provides secure retention when installed, resolving the contradiction between reliable retention and ease of operation.
Solution Approach 2:
The spring loading mechanism is extracted from the traditional end cap design and replaced with a simple friction-fit system where the cover snaps onto the base. This removes the complex spring mechanism that made installation difficult, while maintaining reliable retention through the friction fit and self-centering geometry of the base and cover.
2Adaptability or versatility
If multiple end cap lengths are manufactured for different vehicle models, then each vehicle model gets a precise fit, but manufacturing cost and complexity increase significantly
Solution Approach 1:
The end cap base incorporates a telescoping or adjustable mechanism that allows the effective length to be dynamically changed. Instead of manufacturing multiple fixed-length end caps, a single base design can be adjusted to fit different vehicle interior dimensions, providing versatility across vehicle models while simplifying manufacturing.
Solution Approach 2:
The base design is made universal with features that accommodate multiple vehicle models. The adjustable length mechanism allows one end cap design to serve multiple functions across different vehicle types, eliminating the need for model-specific end caps and reducing manufacturing complexity and cost.
3Ease of manufacture
If the end cap design is simplified to reduce manufacturing cost, then manufacturing complexity decreases, but the ability to adjust length for different vehicle lines is lost
Solution Approach 1:
A simple telescoping mechanism is integrated into the base design, allowing the end cap length to be adjusted between two positions. This dynamic adjustment capability is achieved through a straightforward mechanical design that maintains manufacturing simplicity while providing the adaptability needed for different vehicle lines.
Solution Approach 2:
The end cap design incorporates a mechanism that changes the effective length parameter based on the vehicle model. By using a simple adjustable mechanism rather than complex multi-component systems, the design maintains manufacturing simplicity while achieving the necessary parameter variation for different vehicle applications.
4Ease of operation
If floating end caps are used to allow easy installation, then installation ease improves, but the roller may rattle back and forth within the vehicle
Solution Approach 1:
The floating end cap design is modified by extracting the complete freedom of movement and replacing it with a guided insertion system. The cover is removed during installation and the base is inserted into the bracket, then the cover is snapped onto the base, providing easy installation while preventing rattling through the secure friction-fit connection.
Solution Approach 2:
By segmenting the end cap into base and cover portions with specific engagement features, the design achieves both easy installation (through removable cover) and reliable retention (through friction fit). The segmentation allows the base to provide stable positioning while the cover secures it in place, eliminating the rattling problem.
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
Enables a single shade assembly to fit multiple vehicle lines with adjustable lengths, reducing manufacturing costs and complexity, while maintaining ease of use and installation efficiency.
Implementation Method 1
a linkage (28) pivotally connected to the base (20) and an extension (22) pivotally connected to the linkage (28) on an end opposite of the end connected to the base
Data Source
AI summary
An end cap for use in a shade assembly in a vehicle. The end cap is capable of folding and includes a base and a linkage pivotally connected to the base. The end cap also includes an extension pivotally connected to the linkage. The folding end cap will allow for the effective length of the end cap to be reduced by pivoting the extension of the end cap in an approximate 180° arc such that it engages and is secured to the base on an outer surface thereof.