Multi-step doghouse assembly component for curved parts
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Assembly components with multiple attachment points facing different directions complicate the installation process, leading to high installation efforts and potential part deformation, especially on curved parts, as existing designs either compromise fit and finish or require excessive clearance.
Innovation Solution
A multi-step doghouse assembly component with a keyhole opening featuring multiple pin retaining positions and constrictions guides the fastening pin through a step-by-step assembly process, ensuring proper positioning and alignment, reducing installation force and deformation by allowing the pin to move between preliminary and final retaining positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If multiple attachment points face different directions to achieve correct fit with surrounding components, then fit and finish is improved, but installation effort increases and part deformation risk increases
Solution Approach 1:
The keyhole opening is segmented into multiple distinct positions: an initial position for pin insertion, an intermediate position for temporary retention, and a final position for secure attachment. This segmentation allows the assembly process to occur in controlled steps, reducing installation effort while maintaining fit and finish quality.
Solution Approach 2:
The keyhole opening is pre-configured with constrictions that automatically guide the fastening pin to the correct intermediate position during insertion. This preliminary arrangement of the keyhole structure eliminates the need for precise manual alignment, reducing installation effort while ensuring proper fit and finish.
2Manufacturing precision
If multiple attachment points face different directions to achieve correct fit with surrounding components, then fit and finish is improved, but part deformation increases
Solution Approach 1:
The keyhole opening is segmented into multiple distinct positions: an initial position for pin insertion, an intermediate position for temporary retention, and a final position for secure attachment. This segmentation allows the assembly process to occur in controlled steps, reducing installation effort while maintaining fit and finish quality.
Solution Approach 2:
The keyhole opening is pre-configured with constrictions that automatically guide the fastening pin to the correct intermediate position during insertion. This preliminary arrangement of the keyhole structure eliminates the need for precise manual alignment, reducing installation effort while ensuring proper fit and finish.
3Ease of operation
If free play attachments are used to improve installation conditions, then ease of operation is improved, but fit and finish deteriorates
Solution Approach 1:
The keyhole opening is segmented into multiple distinct positions: an initial position for pin insertion, an intermediate position for temporary retention, and a final position for secure attachment. This segmentation allows the assembly process to occur in controlled steps, reducing installation effort while maintaining fit and finish quality.
Solution Approach 2:
The keyhole opening features localized constrictions at specific positions that provide precise geometric control. The first constriction creates an intermediate position with specific clearance characteristics, while the second constriction creates a final position with tight fit characteristics. This local variation in geometry provides both ease of installation and precise fit and finish.
Data Source
AI summary
An assembly component is provided that includes a body and a multi-step doghouse. The multi-step doghouse is carried on the body and includes a keyhole opening having multiple pin retaining positions.