Flush Vehicle Door Handle Recess for Weather-Protected Access
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Solution Overview
Problem
Flush type handle devices for motor vehicle door leaves are prone to premature degradation due to weathering and have complex mechanical and electric arrangements, making them difficult to assemble.
Innovation Solution
A simplified handle device with a handle support mounted inside the door leaf and a window mounted outside, where the window extends through a guide to allow access to the handle while protecting it from weathering, and includes a movable flap with an electric control element and capacitive sensor for actuation and detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the handle is exposed on the door leaf surface for access, then the user can easily access the handle, but the handle is exposed to weathering and degrades prematurely
Solution Approach 1:
The handle is nested within a recess in the door leaf, with only a portion accessible through an opening. This nesting approach protects the majority of the handle from weathering while maintaining user accessibility through the opening, resolving the contradiction between accessibility and durability
2Shape
If a flush type handle device is used to improve aesthetic appearance and aerodynamics, then the external appearance is improved, but complex mechanical and electric elements are required making assembly difficult
Solution Approach 1:
The patent extracts the complex mechanical and electric elements from the external view by recessing them into the door leaf. The handle mechanism is taken out from the surface and placed within the recess, simplifying the external structure while maintaining the flush appearance and reducing aerodynamic drag
3Reliability
If the handle is recessed inside the door leaf for protection, then the handle is protected from weathering, but the user cannot see the handle for natural opening movement
Solution Approach 1:
The patent solves the visibility issue by creating a three-dimensional recess structure rather than a flat surface. The handle is positioned in a recess that allows visual detection from the exterior while maintaining protection, adding a dimensional aspect that resolves the contradiction between protection and user awareness
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 solution simplifies assembly and mechanical/electric elements, protects the handle from weathering, and allows natural opening movement without visibility, enhancing durability and usability.
Implementation Method 1
the detection element is a capacitive sensor which is electrically connected to the monitoring unit and disposed on a lower wall opposite to the upper wall facing the opening
Data Source
AI summary
A handle device for an opening panel handle, in particular for a motor vehicle, includes a handle support mounted on the inside of the opening panel and a rim mounted on the outside of the opening panel, the rim being attached to the handle support from a recess of the opening panel. The handle support includes the handle and the rim extends through a guide towards the inside of the opening panel, which includes an opening to allow a hand to access the handle.