Motor Vehicle Door Handle Assembly With Fixed Operating Position
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Solution Overview
Problem
Conventional retractable door handle designs for motor vehicles are complex and costly due to their multiple degrees of freedom, posing a challenge in maintaining the handle's stable position in the operating position.
Innovation Solution
A door handle arrangement with a handle carrier, a through-opening, and a drive element, where the handle is movable between rest and operating positions, fixed against deflection via a base plate and stop device, and actuation is detected through sensor components without requiring mechanical movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If conventional retractable door handle designs are used, then the handle can be positioned flush with the door surface for aesthetic requirements and improved aerodynamics, but the system becomes complex and costly due to multiple degrees of freedom
Solution Approach 1:
The handle system is divided into separate functional components: the handle itself, the base plate for mounting, the drive element for actuation, and the stop device for positioning. This segmentation allows each component to perform its specific function independently, reducing overall system complexity while maintaining the retractable functionality.
Solution Approach 2:
The invention extracts the essential functionality of handle retraction by using a simplified mechanism where the handle is mounted on a base plate that can move between positions. The stop device is extracted as a separate element that provides positioning without requiring complex mechanical linkages, thereby reducing device complexity while preserving the shape control capability.
2Adaptability or versatility
If the handle is made movable between rest and operating positions, then the handle can be retracted for aesthetic requirements, but maintaining stable position in the operating position becomes challenging
Solution Approach 1:
The base plate is designed to be movable between a first position (rest position) and a second position (operating position), allowing the handle to adapt its position dynamically. The stop device provides stable positioning in the operating position by preventing further movement, thus combining dynamic adaptability with positional stability.
Solution Approach 2:
The system changes the positional parameter of the handle by moving the base plate between defined positions. The stop device ensures that in the operating position, the handle achieves the desired stability by fixing its spatial parameters, while still allowing the system to adapt between different operational states.
3Extent of automation
If sensor components are added to detect actuating forces, then actuation can be detected without mechanical movement, but the device complexity increases
Solution Approach 1:
The invention replaces traditional mechanical actuation detection mechanisms with sensor components that detect actuating forces directly. This substitution eliminates the need for complex mechanical linkages and movement-based detection systems, reducing overall device complexity while enabling automated actuation detection.
Solution Approach 2:
The sensor components are integrated into the handle assembly to self-detect actuating forces without requiring additional mechanical movement or complex detection mechanisms. The system serves its own detection needs through the embedded sensors, simplifying the overall structure while enabling automated operation.
Data Source
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AI summary
The invention relates to a door handle assembly (3) for a motor vehicle (1), comprising a handle carrier (5) with a through-opening (9), a handle (4) and a drive element (6), wherein the handle (4) is designed to be movable between a rest position and an operating position, wherein a base plate (16), on which the handle (4) is fixedly locked, is movably mounted on the handle carrier (5) and coupling means (18) are provided which couple the drive element (6) and the base plate (16) in such a way that the base plate (16) is designed to be movable between a basic position, in which the handle (4) is arranged in its rest position, and an extended position, in which the handle (4) is arranged in its operating position, and wherein a stop device (31) is provided which, in the operating position, is designed to hold the handle (4) in a fixed and locking position relative to the handle carrier (5).