Flush Handle Mechanism for Vehicle Door Actuation
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Solution Overview
Problem
Existing door handle devices for motor vehicles face challenges such as increased installation space requirements, limited placement options due to size constraints, and inability to function during power failures, while also compromising aerodynamics and pedestrian safety due to protruding designs.
Innovation Solution
A purely mechanical handle device with a movably mounted handle part that can be extended from a flush rest position to an operating position, allowing manual actuation of the locking mechanism via a connecting element, ensuring operation even in power failures, and designed for compactness and ergonomic ease of use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the handle part is extended to allow manual actuation, then operating comfort is improved, but aerodynamics deteriorate and pedestrian safety is compromised
Solution Approach 1:
The handle part is designed to be movable between a retracted position (flush with the door surface) and an extended operating position. When not in use, the handle remains flush to maintain aerodynamics and pedestrian safety. When needed, it can be extended manually by the operator to allow actuation of the locking device, thus resolving the contradiction between operational accessibility and aerodynamic efficiency.
2Volume of moving object
If the handle device is made compact, then installation space is reduced, but operating comfort may be compromised
Solution Approach 1:
The handle device is segmented into multiple functional components: the handle part itself, the connecting element, and the locking device interface. This segmentation allows the handle to be compact when retracted while still providing sufficient leverage and operational comfort when extended, as the mechanical advantage is distributed across the segmented components rather than requiring a single large structure.
3Reliability
If the handle device is designed for mechanical actuation only, then reliability during power failure is improved, but device complexity increases
Solution Approach 1:
A connecting element serves as an intermediary between the handle part and the locking device. This connecting element transmits the mechanical actuation force from the handle to the locking device, ensuring reliable operation during power failures. The intermediary component simplifies the overall system by providing a direct mechanical linkage without requiring complex electronic control systems.
Data Source
Figure 1a~1c
Figure 1d~1f
Figure 2a~2c
AI summary
The invention relates to a handle device (10) for a closing device (80) for a movable part (70), such as a door, panel, or the like, of a vehicle (100), comprising a handle part (20) which can be supported in a movable manner relative to the movable part (70). The closing device (80) can be connected to the handle part (20) via a connection element (16), and the handle part (20) is used to actuate the closing device (80). The handle part (20) can be moved at least between a rest position (Ia) and an operating position (Ib). In the rest position (Ia), the handle part (20) can be designed to be flush with the outer contour of the movable part (70) in particular, and in the operating position (Ib), the handle part (20) can protrude from the movable part (70) such that the handle part can be gripped by an operator. According to the invention, the handle part (20) can be moved from the operating position (Ib) into an additional triggering position (Ic), in which a mechanical actuation of the handle part (20) can be transmitted to the connection element (16), whereby the closing device (80) can be actuated.