Vehicle Window Shade Hook Assembly with Replaceable Grommet
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Solution Overview
Problem
Vehicular window shades and screens face challenges in effectively blocking detrimental light and providing privacy due to structural considerations, leading to irritation and damage from light entering the vehicle interior, and existing hook assemblies are difficult to install and service efficiently.
Innovation Solution
A window shade hook assembly featuring a grommet for mounting a hook member to the door lining, with interlocking surfaces for secure engagement, and a cap to conceal fasteners, facilitating efficient installation and servicing by allowing for replaceable components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If spring-biased assemblies are used to facilitate efficient packaging, then the shade can be compactly stored and easily deployed, but the securement reliability deteriorates due to difficulty in maintaining proper hook engagement
Solution Approach 1:
The hook assembly is divided into separate replaceable components including the hook member, grommet, and fastener. This segmentation allows individual parts to be optimized for their specific functions while maintaining overall system reliability, even when packaging space is constrained.
Solution Approach 2:
The hook member incorporates a spring-biased mechanism that automatically adjusts the engagement parameters between the hook and grommet. This ensures reliable securement through elastic deformation and automatic tension maintenance, compensating for variations in assembly tolerances and wear over time.
2Device complexity
If traditional hook assemblies are used, then the structure is simple, but the installation and servicing time increases due to difficulty in replacement when deformation or breakage occurs
Solution Approach 1:
The hook assembly is segmented into modular components (hook member, grommet, fastener) that can be independently replaced. This modular design reduces servicing time significantly, as only the defective component needs replacement rather than the entire assembly, while maintaining overall structural simplicity.
Solution Approach 2:
The cap is designed to conceal fasteners and protect the hook member during storage and transport. This preliminary protective action prevents deformation and damage before installation, reducing the need for servicing and replacement.
3Device complexity
If the hook member is directly exposed without protection, then the structure is simpler, but the hook member is susceptible to deformation and breakage
Solution Approach 1:
The cap acts as a protective shell that encloses the hook member and fastener. This thin-walled protective structure prevents direct exposure to external forces and environmental factors, significantly improving durability while adding minimal structural complexity.
Solution Approach 2:
The cap provides beforehand protection against deformation and breakage by cushioning the hook member during storage, transport, and installation. This preventive measure reduces the risk of damage before the hook assembly becomes operational.
Data Source
AI summary
Some embodiments are directed to a hook assembly for use with a vehicle having a vehicle interior, a vehicle door having a window bordered by a lining, and a sunshade assembly configured to cover the window, the sunshade assembly having a support member by which the sunshade assembly can be secured to the lining to cover the window. The hook assembly can include a grommet configured to be connected to the lining. The hook assembly can also include a hook member configured to be disposed adjacent and attached to the grommet such that the grommet is disposed between the hook member and the lining, the hook member including a hook extending therefrom, the hook being configured to engage the support member to secure the sunshade assembly to the lining to cover the window.