Vehicle Door Handle Fastening Element Segmentation
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Solution Overview
Problem
Existing door handle systems for vehicles require complex assembly steps, making the mechanical construction and arrangement of door handles at carriers cumbersome and inefficient.
Innovation Solution
A door handle system featuring a two-part fastening element with a clip and locking plate configuration, allowing for easy and secure attachment to the carrier, utilizing form-fitting connections and elastic deformability to ensure a durable coupling, and an adjustment element for transitioning between release and fixing positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a complex assembly structure is used for the door handle system, then the fastening and retention of the door handle can be achieved, but the assembly process becomes cumbersome and inefficient
Solution Approach 1:
The fastening element is divided into two separate parts: a first part configured as a clip for accepting the closing cylinder, and a second part configured as a locking plate for retaining the door handle. These two parts are coupled together through connecting means to form a complete fastening element. This segmentation allows each part to be optimized for its specific function while simplifying the overall assembly process.
Solution Approach 2:
The two parts of the fastening element are pre-assembled and coupled together before being installed on the carrier. This preliminary assembly ensures proper alignment and connection, and the coupled fastening element is then installed as a single unit on the carrier, significantly simplifying the installation process and reducing assembly steps.
2Stability of the object's composition
If multiple complex assembly steps are used to arrange the door handle at the carrier, then secure fixation can be achieved, but the assembly time and effort increase
Solution Approach 1:
The two parts of the fastening element (clip and locking plate) are merged into a single coupled assembly that functions as one integrated component. This merged structure is then installed as a single unit on the carrier, combining the functions of cylinder retention and door handle fixation into one assembly operation, thereby improving productivity while maintaining stability.
Solution Approach 2:
The connecting means between the two parts of the fastening element are designed to automatically align and connect the parts during assembly. The form-fitting connections and elastic deformability enable the parts to self-align and secure themselves without requiring complex external tools or multiple adjustment steps, thus simplifying the assembly process while ensuring stable fixation.
3Device complexity
If a single-part fastening element is used, then the structure is simpler, but different material requirements and thicknesses cannot be optimized for different functions
Solution Approach 1:
The fastening element is segmented into two parts, each optimized for its specific functional requirements. The first part (clip) can be made from materials suitable for cylinder acceptance, while the second part (locking plate) can use materials optimized for door handle retention. This segmentation provides material selection flexibility while keeping the overall structure relatively simple.
Solution Approach 2:
Different parts of the fastening element can be made from different materials with different thicknesses and properties tailored to their local functional requirements. The clip portion can have different material characteristics than the locking plate portion, allowing each region to have the optimal quality for its specific function while maintaining overall structural simplicity.
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
Facilitates simplified and secure mounting of door handles on vehicle parts, enhancing assembly efficiency and stability while allowing for adjustable material usage and secure retention.
Implementation Method 1
the second part is configured elastically deformable at the end facing the first part
Data Source
AI summary
A door handle system for actuation of a moveable part of a vehicle with a carrier arrangeable at the inner side of the moveable part, a door handle arrangeable at the outer side of the moveable part by the carrier. The door handle comprises two ends over a longitudinal extension at which connecting means are provided for the arrangement at the carrier respectively, a fasteningelement which serves for the arrangement of the door handle by connecting means at the carrier. The fasteningelement comprises at least one release position and one fixing position and an adjustment element for the adjustment of the fastening element The fastening element retains the door handle at the carrier in a fixing position. The fastening element is configured from two parts, wherein the two parts of the fastening element are coupled to one another.