Motor Vehicle Air-Guide Drive Fastening System
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Solution Overview
Problem
Existing methods for fastening drive mechanisms to motor vehicle bodies are complex and do not effectively compensate for assembly and production tolerances, making the process difficult and prone to errors.
Innovation Solution
The use of first and second fastening elements, where the first elements are inserted through cutouts in the body into the second elements, allowing for orientation and clamping, with third elements providing additional reinforcement through threading, enabling simple and secure attachment and detachment of the drive mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If centering pins are used to fasten the drive means to the body, then the drive means can be positioned in the desired location, but the fastening process becomes complex and difficult
Solution Approach 1:
The fastening system is divided into separate components: first fastening elements on the body, second fastening elements on the drive means, and third fastening elements for reinforcement. This segmentation allows each component to perform its specific function independently, simplifying the overall fastening process while maintaining positioning accuracy
Solution Approach 2:
The first and second fastening elements act as intermediary components that facilitate the connection between the body and drive means. These intermediaries enable easy insertion and orientation while the third fastening elements provide additional securing, making the overall process simpler and more reliable
2Manufacturing precision
If traditional fastening methods are used, then the drive means can be attached to the body, but assembly and production tolerances cannot be effectively compensated
Solution Approach 1:
The fastening system incorporates dynamic adjustment capability through the interaction of first, second, and third fastening elements. The first fastening elements provide initial positioning with tolerance compensation, while the third fastening elements can be adjusted to secure the connection, allowing the system to adapt to manufacturing variations
Solution Approach 2:
The fastening system utilizes parameter changes in the form of adjustable positioning and clamping forces. The first fastening elements accommodate dimensional variations, while the third fastening elements apply securing force, enabling the system to compensate for tolerance deviations without increasing assembly difficulty
3Reliability
If the drive means is securely fastened to the body, then reliable operation is ensured, but the process becomes time-consuming and complex
Solution Approach 1:
The first fastening elements perform preliminary positioning and alignment of the drive means with the body. This preliminary action ensures correct orientation and location before the third fastening elements are applied for final securing, reducing the overall time and complexity of the fastening process while maintaining reliability
Solution Approach 2:
The fastening process is segmented into distinct stages: initial positioning by first fastening elements, orientation adjustment, and final securing by third fastening elements. This segmentation allows each stage to be completed efficiently and independently, reducing total fastening time while ensuring reliable attachment
4Reliability
If multiple fastening elements are used to ensure secure attachment, then reliability is improved, but the device complexity increases
Solution Approach 1:
The fastening system is segmented into functionally distinct elements: first fastening elements for positioning, second fastening elements for connection, and third fastening elements for reinforcement. Each segment performs a specific function, improving reliability through functional specialization while maintaining simplicity through clear division of roles
Solution Approach 2:
The fastening elements are designed with universal applicability, where the first, second, and third elements work together in a standardized system that can be applied to various mounting scenarios. This multi-functional design ensures reliable attachment while avoiding the need for complex, scenario-specific fastening solutions
Data Source
AI summary
A motor vehicle has a body; an air-guide, fastenable to the body; a drive to adjust the air-guide when the air-guide is fastened to the body; and connectors that connect the drive to the body. The connectors include first fastening elements and second fastening elements. The first fastening elements are insertable through cutouts in the body into the second fastening elements via a first position up to a second position. An orientation of the drive relative to the body is possible in the first position, and the second fastening elements exert a clamping force on the first fastening elements in the second position.