Vehicle Door Protective Shell With Snap-Fit Interior Panel Retention
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing interior door protectors for vehicles require fasteners or adhesives for installation, which can damage the interior surfaces and are inconvenient to install or remove, and do not provide adequate protection against daily hazards.
Innovation Solution
A removable protective shell made of hard plastic, vacuum-formed to fit over the vehicle door panel, secured using a deformable sheet with a locking well and flange that interfaces with the door pull and window seal, allowing easy installation and removal without adhesives or fasteners.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fasteners or adhesives are used to secure interior door protectors, then the protectors can be held in position, but the interior surfaces are punctured or marred
Solution Approach 1:
The protective element uses a flexible shell that can be formed into various shapes to fit the door panel contours. This flexible shell engages with door features like the window seal and door pull through friction and geometry rather than fasteners, avoiding surface damage while maintaining secure positioning
Solution Approach 2:
The protective element acts as an intermediary between the door panel and potential damage sources. It uses the door's existing features (window seal, door pull) as engagement points without requiring modification to the door surface, thereby protecting the panel while avoiding punctures or marks
2Reliability
If adhesive is used to attach flexible protectors, then they can be held down, but the adhesive cannot be tied down to other vehicle interior features
Solution Approach 1:
The protective element is designed to be self-securing through its flexible shell that naturally engages with door features like the window seal and door pull. The flexibility allows it to conform and lock into place without requiring external adhesives or complex fastening systems
Solution Approach 2:
The protective element utilizes dynamic engagement where the flexible shell can deform during installation to snap into position against door features. This dynamic fitting process allows easy installation and removal without permanent attachment, reducing both complexity and surface damage risk
3Object-affected harmful factors
If rigid plastic protectors are used, then protection against damage is improved, but they cannot be easily removed and reinstalled
Solution Approach 1:
The protective element employs a flexible shell made from materials like vinyl, plastic, or rubber that provides sufficient protection against damage while allowing easy removal and reinstallation. The flexibility enables the shell to be manipulated during installation and removal without breaking, unlike rigid protectors
Solution Approach 2:
The protective element changes its physical state during operation - it can be deformed during installation to fit into place, then returns to its original shape to provide protection. This parameter change (flexibility) allows both adequate protection and easy removal/reinstallation cycles
4Reliability
If hang tabs are inserted between the window and door panel, then the protector can be secured, but the tabs cause scratches on tinted glass and indentations in the window seal
Solution Approach 1:
The design extracts the problematic hang tabs from the securing mechanism. Instead of using separate tabs that contact the window and seal, the flexible shell itself engages directly with these features through its body, eliminating the intermediary tabs that caused damage
Solution Approach 2:
The flexible shell can conform to the door panel shape and engage with features like the window seal through friction and geometric interlocking rather than sharp tabs. This flexible engagement method avoids concentrated stress points that would scratch glass or indent seals
Data Source
AI summary
A protective shell for protecting an interior door panel of a vehicle has an inner face with a protruding door pull defining a door well for receiving a user's fingers and a door sill leading to a window opening. A deformable sheet of hard plastic with an exposed side and a reverse side is profiled to fit over the inner face of the vehicle door interior panel. An outwardly directed top surface portion for rests on the door sill. A protrusion on the exposed side of the deformable sheet for encloses the vehicle door pull. The protrusion has a locking well responsive to downward pressure to fit snugly into the door well to hold the protective shell securely in position on the interior door panel. A separate flange component has a main surface and a downward flange at its upper extremity tuckable over a top edge of the door sill. The main surface is attachable to the outwardly directed top surface portion.