Pop-Up Vehicle Door Handle Stabilization With Trajectory Restriction
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Solution Overview
Problem
Existing vehicle door handle devices with a pop-up function suffer from instability in holding the door handle at the pop-up position, leading to a reduced user experience due to unpredictable movement.
Innovation Solution
A vehicle door handle device with a door handle supported by a housing, a first member, a second member, a second member biasing member, and a third member, where the third member restricts the movement of the first member from the pop-up position to the storage position by contacting the second member when it is in the in-trajectory position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If the door handle is designed to pop up from the vehicle door, then the door handle is stored neatly when not in use, but the holding force at the pop-up position becomes unstable
Solution Approach 1:
The third member is positioned in advance to potentially restrict the movement trajectory of the second member. This preliminary positioning creates a pre-set constraint that prevents unstable movement of the door handle at the pop-up position, addressing the holding force stability issue before it occurs during actual use.
Solution Approach 2:
The third member acts as an intermediary element between the second member and the housing. By introducing this intermediate component that can selectively enter the movement trajectory, the system achieves stable holding force at the pop-up position without requiring direct complex interactions between the existing components.
2Reliability
If the third member is positioned to restrict movement, then the door handle holding stability is improved, but the device complexity increases
Solution Approach 1:
The third member is designed to serve multiple functions: it acts as a stopper to restrict the second member's movement trajectory, and it can be positioned in different states (entering or outside the movement trajectory). This multi-functionality allows a single component to address holding stability without proportionally increasing 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
Stabilizes the door handle at the pop-up position, enhancing user experience by ensuring consistent and reliable operation.
Implementation Method 1
a second member biasing member configured to bias the second member to be elastically movable with respect to the first member
Data Source
AI summary
A vehicle door handle device includes: a door handle supported by a housing to be movable between a storage position where the door handle is stored in the housing and a pop-up position where at least a part of the door handle jumps out of the housing; a first member configured to move in conjunction with the door handle such that the first member is located at a storage corresponding position when the door handle is located at the storage position and is located at a pop-up corresponding position when the door handle is located at the pop-up position; a second member supported movably with respect to the first member; a second member biasing member configured to bias the second member to be elastically movable with respect to the first member; and a third member movable between an out-of-trajectory position and an in-trajectory position, the out-of-trajectory position being a position outside a movement trajectory of the second member when the first member moves from the pop-up corresponding position to the storage corresponding position, the in-trajectory position being a position where at least a part of the third member enters the movement trajectory. When the first member is located at the pop-up corresponding position and the third member is located at the in-trajectory position, the first member is restricted from moving from the pop-up corresponding position to the storage corresponding position by the second member coming into contact with the third member.