Retractable Vehicle Door Handle Base Assembly
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Solution Overview
Problem
Conventional retractable outside door handle assemblies for vehicles complicate the assembly of the door lock mechanism, increase weight, and raise costs due to the need for a fixing bracket and modularized components.
Innovation Solution
A retractable outside handle assembly featuring a base assembly with two movable internal bases and an external base, allowing the door lock mechanism to be assembled internally before the outside handle is attached, eliminating the need for a fixing bracket and improving assembly workability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the door lock mechanism is connected to the door handle assembly first in conventional assemblies, then the assembly structure is stable, but the assembling workability deteriorates and requires a fixing bracket
Solution Approach 1:
The door handle assembly is divided into separate components: the door handle itself, the base assembly with receiving grooves, and the door lock mechanism. This segmentation allows each component to be assembled independently and then integrated, improving assembling workability without requiring a fixing bracket.
Solution Approach 2:
Instead of connecting the door lock mechanism to the door handle assembly first (conventional method), the invention inverts the assembly sequence by first installing the base assembly to the door, then inserting the door handle assembly into the base. This reversed sequence eliminates the need for a fixing bracket and simplifies the assembly process.
2Reliability
If modularized components are used with a fixing bracket for assembling the door latch mechanism and outside door handle assembly, then the assembly is more stable, but weight and cost increase
Solution Approach 1:
The base assembly integrates multiple functions: it serves as the mounting structure for the door lock mechanism, the receiving structure for the door handle assembly, and the structural support element. This merging eliminates the need for a separate fixing bracket, reducing weight while maintaining assembly stability through the integrated design.
3Ease of operation
If the outside door handle protrudes outward along the width direction of the vehicle, then the convenience of operation is improved, but the appearance deteriorates and driving performance decreases due to driving resistance
Solution Approach 1:
The door handle assembly is designed to be retractable rather than fixed. The base assembly allows the door handle to move between a protruding position (for operation) and a retracted position (for reduced drag). This dynamic design enables the handle to adapt its position based on operational needs, improving convenience while minimizing driving resistance and noise during normal driving.
Data Source
AI summary
A retractable outside handle assembly for a vehicle include a retractable outside door handle protruding outward in a width direction of the vehicle from a door outside panel forming a door of the vehicle or being housed in an opening portion formed in the door outside panel and a base assembly with which retractable outside door handle is rotatably assembled wherein the base assembly includes two first and second door outside handle internal bases which are relatively movable with respect to each other, and a door outside handle external base housing first and second door outside handle internal bases, improving assemble workability and reducing weight and cost.