Multi-Directional Adjustable Fastener for Precise Vehicle Alignment
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Solution Overview
Problem
Existing vehicle assembly technologies face challenges in maintaining precise alignment of components due to shape tolerances and changes over time, requiring adjustable fasteners that can provide multi-directional adjustment capabilities.
Innovation Solution
An adjustable fastener system comprising a plunger, puck key, selector key, and lock collar, allowing for independent adjustment along multiple axes to secure and align components accurately, comprising a shaft with different cross-sectional sections for rotational engagement and thread engagement, and a puck key with varying heights for precise positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional fixed fasteners are used to assemble vehicle components, then assembly speed is improved, but alignment precision deteriorates due to shape tolerances and component variations
Solution Approach 1:
The fastener system transitions from a fixed configuration to a dynamic, adjustable configuration. The selector key mechanism allows the fastener position to be changed along the slot, enabling alignment adjustments during assembly to accommodate shape tolerances and component variations while maintaining assembly efficiency
Solution Approach 2:
The fastener system changes the positional parameter along the slot to achieve proper alignment. By allowing the fastener to be positioned at different locations within the slot rather than being fixed, the system can compensate for dimensional variations in vehicle components and achieve the required alignment precision
2Manufacturing precision
If adjustable fasteners with multi-directional capabilities are provided, then alignment precision is improved, but device complexity increases
Solution Approach 1:
The adjustment mechanism is segmented into discrete, standardized components: a slot with specific engagement features, a fastener with corresponding engagement elements, and a selector key mechanism. This segmentation allows for precise alignment through discrete positional adjustments while maintaining manufacturing simplicity through modular design
Solution Approach 2:
The slot-faster-selector key mechanism serves multiple functions: it provides alignment adjustment, maintains structural integrity through the slot geometry, and enables tool-based operation through the selector key. This multi-functionality reduces the need for separate adjustment mechanisms, thereby controlling overall device complexity while achieving multi-directional adjustment capabilities
Data Source
AI summary
Aspects of the disclosure relate to an adjustable fastener to facilitate adjustment of an assembly that allows any two or more components to be adjusted relative to each other and control an interface region there between. An adjustable fastener can include features to facilitate adjustment in multiple axes and within particular ranges. Adjustment within each of the multiple axes can be achieved independently of each other. Such adjustment capabilities can help to improve the alignment of parts during and after assembly to achieve a desired arrangement with high precision and accuracy.