Removable Extension End Cap for Vehicle Roller Shades
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Solution Overview
Problem
Existing vehicle roller shade assemblies face challenges in versatility and cost due to fixed lengths, requiring multiple designs for different vehicle models, and often feature heavy, complex end caps that complicate installation and removal.
Innovation Solution
A two-piece removable end cap system, comprising a base end cap with a slot and a removable extension, allowing for adjustable length by adding or removing extensions on one or both ends of the roller shade assembly, enabling use across various vehicle lines with reduced manufacturing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed-length roller shade assembly is used, then the manufacturing process is simple, but the assembly cannot be used across multiple vehicle lines with different interior dimensions
Solution Approach 1:
The end cap is divided into two separate pieces: a base end cap and a removable extension. This segmentation allows the extension to be added or removed based on the vehicle interior dimensions, enabling the same roller shade assembly to fit different vehicle lines without requiring completely different assemblies.
Solution Approach 2:
The end cap configuration is made dynamic through the removable extension feature. Users can adjust the effective length of the roller shade assembly by adding or removing extensions, transforming a static fixed-length design into an adaptable system that responds to different installation requirements.
2Reliability
If multiple fixed-length designs are created for different vehicle models, then each vehicle model gets a perfect fit, but the manufacturing cost and complexity increase significantly
Solution Approach 1:
A single roller shade assembly design with adjustable end caps serves multiple vehicle lines that would otherwise require different custom designs. The base end cap plus removable extension combination allows one assembly to be universally adapted to various interior dimensions, eliminating the need to manufacture separate assemblies for each vehicle model.
Solution Approach 2:
The effective length parameter of the roller shade assembly is made variable through the removable extension. Instead of manufacturing different assemblies with fixed lengths for different vehicles, the same assembly can have its length parameter changed by adding or removing extensions, reducing manufacturing complexity while maintaining proper fit.
3Ease of operation
If spring-loaded end caps are used to secure the roller, then installation is easier with self-centering action, but the end caps become heavier and more complex
Solution Approach 1:
The end cap is segmented into a base portion and a removable extension, allowing the securing mechanism to be simplified on the base while the extension provides length adjustment. This segmentation enables easier installation through the base end cap's securing features while adding minimal complexity through the separate extension piece.
Data Source
AI summary
A support assembly for use on a shade in a vehicle is disclosed. The support assembly includes a base end cap and a nose insulator secured to an end of the base end cap. The support assembly also includes a removable extension arranged over the nose insulator and a portion of the base end cap. A second nose insulator is secured to an end of the removable extension for interaction with an inside surface of the vehicle.