Pivotable Handle Bezel for Vehicle Door Emergency Unlocking
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Solution Overview
Problem
Existing exterior door handle arrangements for motor vehicles have awkward handling of the emergency unlocking device, requiring direct manual actuation of the pulling means for emergency unlocking.
Innovation Solution
A pivotably mounted handle bezel acts as a cover for the gripping handle, allowing indirect actuation of the pulling means through a deflecting lever, simplifying the emergency unlocking process by enabling pulling force to be applied to the handle bezel, which transmits the motion to the pulling means for mechanical actuation of the emergency opening mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the pulling means is made directly accessible for manual actuation, then the emergency unlocking function is reliable, but the handling becomes awkward and complex
Solution Approach 1:
The patent introduces an intermediary mechanism (the cover that can be pulled) between the user and the pulling means. When the cover is pulled in the emergency unlocking position, it indirectly actuates the pulling means through a mechanical connection, simplifying user interaction while maintaining reliable emergency unlocking functionality
2Ease of manufacture
If the pulling means is covered by a cover in normal operation, then the device appearance is improved and protected, but the accessibility for emergency unlocking is reduced
Solution Approach 1:
The cover is designed to be dynamic rather than static - it can pivot between a closed position (for normal operation and protection) and an emergency unlocking position (for accessibility). This dynamic behavior allows the same component to serve both protective and access functions
3Ease of operation
If the pulling means is pulled out of the door handle for better accessibility, then the ease of operation is improved, but the device complexity increases
Solution Approach 1:
The cover serves multiple functions: it acts as a protective cover during normal operation, serves as the actuating element for emergency unlocking when pulled, and mechanically transmits the pulling motion to the pulling means. This multi-functionality eliminates the need for separate components, reducing overall device complexity
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 provides simpler and more intuitive operation for emergency unlocking, enhancing the mechanical robustness and reliability of the actuation mechanism, allowing the vehicle door to be opened without direct manual actuation of the pulling means.
Implementation Method 1
a deflecting means, such as a pivotably mounted deflecting lever. The deflecting means may be connected to the pulling means and may be configured and arranged to interact with the handle bezel and to actuate the pulling means during the pulling of the handle bezel
Data Source
AI summary
An exterior door handle arrangement (1) for a motor vehicle includes an electric door closing apparatus (2) accommodated in a vehicle door that includes door handle (10) with a fixed gripping handle (4) and a handle bezel (5). The handle bezel (5) covers the gripping handle (4) and a lock barrel (6) and releases at least the lock barrel (6) in an emergency. An emergency unlocking device has a pull device (13) to actuate an emergency opening mechanism. The handle bezel (5) is mounted pivotably to the gripping handle (4). The handle bezel (5) is locked on the gripping handle (4) in a closed position and is released in an emergency unlocking position to pivot relative to the gripping handle (4). Pulling on the handle bezel (5) actuates the pull device (13) for mechanical actuation of the emergency opening mechanism of the vehicle door.