Vehicle Interior Part Attachment Structure to Prevent Clip Rattling
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Solution Overview
Problem
Existing vehicle interior part attaching structures using clips are prone to rattling due to vehicle vibrations, as they rely solely on simple insertion into engagement holes without secure fixation.
Innovation Solution
A vehicle interior part attaching structure featuring a pair of openings in the structural component and a box-shaped interior part with movably connected engagement members that rotate or slide outward to sandwich the peripheral edges of the openings, providing stable attachment without rattling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If clips are simply inserted into engagement holes to connect the vehicle interior part to the vehicle structural component, then the assembly process becomes simple and tool-free, but the connection becomes loose and produces rattling due to vehicle vibrations
Solution Approach 1:
The engagement members are designed to move from an initial retracted position to an extended engagement position through a pressing mechanism. This dynamic transformation allows the same component to serve dual functions: enabling simple initial insertion and providing secure vibration-resistant engagement through the extended position where the engagement portions contact the peripheral edges of the openings
Solution Approach 2:
The pressing members are integrated within the bottom plate structure, and the engagement members are nested within the interior part main body. This nested arrangement allows the pressing mechanism to be compact while still providing the force needed to extend the engagement members into their functional position, maintaining both simplicity and reliability
2Reliability
If engagement members are made movable and connected via movably connecting mechanisms, then the engagement portions can contact the peripheral edges to prevent rattling, but the device complexity increases
Solution Approach 1:
The movably connecting mechanisms utilize flexible hinge structures that allow the engagement members to rotate between retracted and extended positions. This flexible connection provides the necessary movement for engagement while maintaining a compact, integrated structure that does not add significant complexity to the overall device
Solution Approach 2:
The pressing members automatically extend the engagement members into their engagement position when the bottom plate is fitted into the interior part main body. This self-actuating mechanism eliminates the need for external actuators or complex control systems, achieving reliable engagement through the natural insertion motion
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 structure securely attaches the vehicle interior part to the structural component, preventing rattling in both vertical and horizontal directions, ensuring stable and tool-free assembly.
Implementation Method 1
The pressing members are configured to move the engagement members outward when the bottom plate is fitted in the bottom opening of the interior part main body... thereby bringing the engagement portions of the engagement members into contact with peripheral edges of the openings
Data Source
AI summary
A vehicle interior part attaching structure for attaching a vehicle interior part to a vehicle structural component may include a pair of openings formed in the vehicle structural component, and a box-shaped interior part main body and a bottom plate constituting the vehicle interior part. The interior part main body has a bottom opening, a pair of contacting portions, and a pair of engagement members having engagement portions. The engagement members are movably connected to the interior part main body via movably connecting mechanisms so as to move outward. The bottom plate includes pressing members formed therein. The pressing members are configured to move the engagement members outward when the bottom plate is fitted in the bottom opening of the interior part main body in a condition in which the interior part main body is disposed on the vehicle structural component.