Foldable Cover for Sliding Door Rail
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Solution Overview
Problem
Sliding door vehicles face issues with foreign substances entering the internal side sill space due to the exposure of rails, as existing solutions for swing-type doors are not applicable to sliding doors.
Innovation Solution
A structure featuring a rail-mounted cover unit that is foldable and unfoldable, guided by a guide rail unit, with rollers and a coupler system that applies elastic force, ensuring the internal side sill space remains closed and allowing for easy repair by replacing damaged components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the rail is exposed to the outside for sliding door operation, then the sliding door can move along the rail, but foreign substances can enter the internal side sill space
Solution Approach 1:
The cover unit is designed to be movable rather than fixed, allowing it to dynamically change position between covering and uncovering states. The cover unit moves along the guide rail unit, enabling it to adapt its position based on the sliding door operation state, thus maintaining protection while allowing necessary movement.
Solution Approach 2:
The cover unit is divided into multiple covers connected by couplers, creating a segmented structure. This segmentation allows the cover system to flexibly adapt to different positions and maintain effective coverage of the rail area, preventing foreign substance entry while accommodating the sliding door mechanism.
2Object-affected harmful factors
If a fixed cover is used to protect the rail, then foreign substances are prevented from entering, but the sliding door cannot operate
Solution Approach 1:
The cover unit is designed with movable characteristics, allowing it to shift position along the guide rail unit. This dynamic capability enables the cover to move out of the way during sliding door operation and return to covering position when the door is stationary, thus preventing foreign substance entry without impeding door operation.
Solution Approach 2:
The guide rail unit acts as an intermediary mechanism between the cover unit and the sliding door system. It provides a structured path for the cover unit to move along, coordinating the cover's motion with the sliding door operation, thus enabling both protection and operation functions.
3Reliability
If the entire cover unit is replaced when damaged, then reliability is restored, but manufacturing cost and complexity increase
Solution Approach 1:
The cover unit is segmented into multiple covers connected by couplers, allowing individual components to be independently replaced. When damage occurs, only the specific damaged cover or coupler needs to be replaced rather than the entire assembly, reducing replacement complexity and cost while maintaining system reliability.
Solution Approach 2:
The segmented design enables selective replacement of only the damaged portion of the cover unit. Healthy components remain in place and can be reused, effectively discarding only the necessary damaged parts and recovering the functional components, thus reducing overall replacement 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
Effectively prevents foreign substances from entering the internal side sill space while allowing for easy maintenance and repair, maintaining the structural integrity and functionality of sliding door vehicles.
Implementation Method 1
The coupler may have a spring that applies elastic force when the cover is unfolded or folded.
Data Source
AI summary
A structure for shielding a rail exposed to an outside of a sliding door vehicle includes a rail configured to be mounted in a vehicle, a drive unit movably connected to the rail, and a cover unit having one side connected to the drive unit and configured to be foldable and unfoldable. The cover unit is configured to move to open or close a space in which the rail is positioned.