Vehicle Door Release Switch Nesting and Tilted Orientation
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Solution Overview
Problem
Conventional vehicle door structures with release switches protruding into the cabin often lead to unintended latch release due to interference from baggage or occupants, compromising operational safety and ease of use.
Innovation Solution
A vehicle door structure featuring a release switch housed in a storage recess on the door trim, tilted to prevent accidental activation, with a push operation direction aligned towards the rear of the vehicle, and a release lever that can swing inward to release the latch, ensuring the switch is not easily hit by occupants or baggage, and allowing for easy recognition of alternative operation elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the release switch protrudes into the vehicle cabin, then the operability of the release switch is improved, but the reliability of preventing unintended latch release deteriorates
Solution Approach 1:
The release switch is nested within the storage recess of the door trim, which is curved outward in the vehicle-width direction. This nesting structure allows the switch to be accessible for operation while being protected from accidental activation by baggage or occupant contact, as the recess provides a physical barrier that prevents direct access unless intentionally operated.
Solution Approach 2:
The operating direction of the release switch is tilted toward the rear of the vehicle relative to the axis extending outward in the vehicle-width direction. This angular orientation in a different dimensional direction makes it difficult for baggage or occupant body parts to accidentally push the switch in the operating direction, while still allowing intentional operation by the user.
2Reliability
If the release switch is completely stored in the storage recess, then the reliability of preventing unintended latch release is improved, but the ease of operation of the release switch deteriorates
Solution Approach 1:
The storage recess is designed with specific local characteristics: it is curved outward in the vehicle-width direction to provide protection, yet the release switch within it is positioned and oriented to maintain accessibility. The localized angular orientation of the switch operating direction creates a balance between protection and operability, allowing intentional access while preventing accidental contact.
3Reliability
If the operating direction is tilted toward the rear of the vehicle, then the reliability of preventing accidental activation is improved, but the simplicity of the switch design deteriorates
Solution Approach 1:
The release switch is designed with an asymmetric operating direction that is tilted toward the rear of the vehicle rather than being perpendicular to the door surface. This asymmetric angular orientation simplifies the prevention mechanism by leveraging the natural geometry of the storage recess and the direction of potential accidental forces, eliminating the need for complex additional protective mechanisms.
Data Source
AI summary
Provided are a door trim attached on a vehicle cabin side of a vehicle door and including a storage recess curved outward in a vehicle-width direction, and a release switch disposed in the storage recess and pushed in a predetermined operating direction to output a latch release signal to an actuator that moves a latch member. The latch switch is completely stored in the storage recess, and the operating direction is tilted toward the rear of the vehicle relative to an axis extending outward in the vehicle-width direction.