Vehicle Slide Door Widthwise Displacement Restraint Mechanism
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Solution Overview
Problem
Existing slide door apparatuses for vehicles face issues with decreased support rigidity, leading to swing or shaky movements due to the arrangement of guide rails, which affects the quality feeling and functionality of the door.
Innovation Solution
A slide door apparatus with a body-side guide rail and a door-side guide rail, along with connection members and a widthwise displacement restraint mechanism, is designed to improve support rigidity by restricting relative movement between the slide door and the vehicle body in the width direction, using multiple guide rails and connection points to stabilize the door.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the guide rail is formed at the inner side surface of the slide door to improve arrangement flexibility, then the window frame may be omitted, but the support rigidity of the slide door decreases causing swing or shaky movement
Solution Approach 1:
The guide rail system is segmented into two independent components: a body-side guide rail formed at the vehicle body and a door-side guide rail formed at the slide door. This segmentation allows each guide rail to be optimized for its specific function while maintaining overall system flexibility and support rigidity
Solution Approach 2:
Connection members serve as intermediaries between the body-side guide rail and the door-side guide rail. These connection members include guide rollers that roll on paths formed by both guide rails, effectively transferring and stabilizing the door's movement while maintaining the flexible arrangement configuration
2Ease of manufacture
If the guide rail arrangement is changed to improve flexibility, then installation options increase, but swing or shaky movement occurs reducing quality feeling
Solution Approach 1:
The guide rail system is divided into body-side and door-side components that can be independently installed and configured. This segmentation provides multiple installation options while ensuring stable door support through the coordinated operation of both guide rails and connection members
Solution Approach 2:
Connection members with guide rollers act as intermediaries that connect the body-side guide rail and door-side guide rail. These intermediaries ensure smooth, stable door movement by rolling along paths formed by both guide rails, eliminating swing and shaky movements that would otherwise occur with flexible guide rail arrangements
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
The solution enhances support rigidity, reduces swing or shaky movements, and improves the quality feeling of the slide door by providing additional connection points and a mechanism to restrain displacement in the width direction, ensuring stable operation.
Implementation Method 1
connection members each of which includes a guide roller rolling on a path formed by each of the body-side guide rail and the door-side guide rail
Implementation Method 2
a widthwise displacement restraint mechanism restricting a relative movement between the facing portions of the slide door and the vehicle body in a width direction of the vehicle by connecting the facing portions of the slide door and the vehicle body to each other
Data Source
AI summary
A slide door apparatus includes a body-side guide rail provided at a vehicle body, a door-side guide rail provided at a slide door, connection members each of which includes a guide roller rolling on a path formed by each of the guide rails, each of the connection members being connected to each of the guide rails, the slide door being configured to open and close a door opening portion formed at the vehicle body based on a movement of the slide door, facing portions formed at the slide door and the vehicle body respectively, the facing portions facing each other in a state where the slide door is in a fully open position, and a widthwise displacement restraint mechanism restricting a relative movement between the facing portions of the slide door and the vehicle body in a width direction of the vehicle by connecting the facing portions to each other.