Vehicle Seat Slide Rail Clearance Control for Vibration Stability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Long slide rail systems in vehicles experience dimensional inconsistencies leading to vibrations, shaking, and inconsistent operational forces due to varying clearances and couplings, affecting customer satisfaction and marketability.
Innovation Solution
A long slide rail system with a locking module, fixing guide, and moving guide that controls vertical and horizontal clearances through elastic rotation brackets and inclined support members, preventing unwanted movements and stabilizing the upper rail.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the lower rail is made longer to increase forward-and-rearward movement distance, then the movement distance is improved, but dimensional distribution causes clearance inconsistencies and vibration
Solution Approach 1:
The lower rail is divided into multiple sections with intermediate coupling parts, allowing each section to be manufactured separately with controlled dimensions and then assembled together, reducing cumulative dimensional errors and clearance inconsistencies
Solution Approach 2:
The coupling part includes an elastic member that can elastically deform to adjust and maintain consistent clearance between the upper rail and lower rail across different sections, compensating for dimensional variations
2Length of moving object
If the lower rail is made longer to increase movement distance, then the movement distance is improved, but vibration and shaking occur during sliding movement
Solution Approach 1:
The elastic member in the coupling part dynamically adjusts its deformation to maintain optimal clearance and reduce vibration during sliding movement
Solution Approach 2:
The elastic member is pre-configured to provide cushioning and dampen vibrations before they can propagate through the long lower rail structure
3Ease of manufacture
If dimensional distribution varies in each section, then assembly flexibility is improved, but coupling degree with clearance-controlling members varies leading to inconsistent operating force
Solution Approach 1:
The elastic member's elastic deformation capability allows it to adapt to dimensional variations in each section while maintaining consistent operating force through elastic recovery
Solution Approach 2:
The elastic member automatically adjusts its deformation to compensate for dimensional variations, eliminating the need for manual adjustment of operating force
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
Prevents vibrations and shaking, ensuring consistent operational forces, thereby enhancing the marketability and quality of the vehicle seat by stabilizing the upper rail.
Implementation Method 1
a rotation bracket is rotated by elastic force when a locking module is located to be caught by a lower rail
Data Source
AI summary
A long slide rail system for a vehicle seat, includes a lower rail extending lengthwise along a vehicle floor panel, the lower rail being fixedly installed on the floor panel, an upper rail coupled to the lower rail and configured for a seat cushion to be slidably moved along the lower rail, a locking module mounted on the upper rail, wherein the upper rail is slidably moved based on the locking module being unlocked from a locking hole formed in the lower rail, a fixing guide coupled to the upper rail and spaced apart from the locking module in a forward-and-rearward direction, and a moving guide selectively moved and connected to the fixing guide based on the locking module being locked in the locking hole. The moving guide is configured to control, inside the lower rail, horizontal and vertical clearances with respect to the upper rail.