Vehicle Door Guide Pin Structure for Opposed Swing Door Sagging
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Solution Overview
Problem
In vehicles with opposed swing doors, the lack of a center pillar support structure and insufficient hinge span can lead to sagging or late deformation of the rear door, resulting in defective closing and gap step issues.
Innovation Solution
A door device featuring a guide pin coupled with a guide module on the vehicle body, which includes a guide slit, a catcher, and a lever system to securely engage and stabilize the door during opening and closing, preventing sagging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a hinge configuration is used for the rear door in an opposed swing door system, then the door can be opened and closed, but the insufficient hinge span and lack of center pillar support cause sagging and late deformation
Solution Approach 1:
The door support function is segmented into multiple components: the guide pin provides vertical support, the guide slit controls the movement path, and the catcher mechanism provides lateral support. This segmentation allows each component to address specific aspects of door stability independently, preventing sagging and deformation while enabling smooth operation.
Solution Approach 2:
The guide pin acts as an intermediary element between the door and the guide module. It transmits the door's weight and operational forces through the guide slit to the guide body, providing stable support while allowing controlled movement. This intermediary structure eliminates the need for traditional hinges while maintaining operational ease.
2Adaptability or versatility
If the hinge span is reduced to accommodate the opposed swing door design, then the open feeling is improved, but the hinge strength becomes insufficient causing sagging and deformation
Solution Approach 1:
The traditional hinge mechanical system is replaced with a guide pin and guide slit mechanism. This substitution eliminates the need for a large hinge span while providing equivalent or superior support strength. The guide pin sliding within the guide slit provides both vertical and lateral support, preventing sagging without requiring the space-consuming traditional hinge configuration.
Solution Approach 2:
The support mechanism transitions from a horizontal hinge-based system to a vertical guide pin-based system. By changing the dimension of the support structure from horizontal (hinge span) to vertical (guide pin length and guide slit orientation), the invention achieves strong support with minimal space requirements, enabling the opposed swing door configuration.
3Device complexity
If traditional hinge support is used without center pillar, then the vehicle design is simplified, but defective closing and gap step issues occur due to door deformation
Solution Approach 1:
The guide module serves multiple functions: it guides the door movement through the guide slit, supports the door weight via the guide pin, prevents lateral deviation through the catcher mechanism, and ensures proper closing position. This multi-functional design replaces the need for center pillar support while maintaining door closing reliability and eliminating gap step issues.
Solution Approach 2:
The guide slit is pre-configured with a specific trajectory that guides the door into the correct closing position. The catcher mechanism is pre-positioned to engage with the guide pin at the proper moment, ensuring the door closes reliably without deformation. This preliminary configuration of the guide paths and engagement points prevents closing defects before they occur.
Data Source
AI summary
A door device includes a door configured to open or close a door opening formed in a vehicle body, a guide pin provided at a lower end portion of the door and extending toward a lower end portion of the vehicle body, and a guide module provided on the lower end portion of the vehicle body and slidably coupled with the guide pin as the guide pin is inserted in the guide module.