Rotatable Attachment Insert for Bumper Alignment Adjustment
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Solution Overview
Problem
Existing bumper attachment devices face issues with positional discrepancies between the bumper and the vehicle body due to variations in stud positions or welding heights, leading to misalignment of the bumper relative to the vehicle body.
Innovation Solution
A bumper attachment device comprising a rotatable attachment insert with through holes and elastic tongue pieces, thick-walled parts, and protrusions that allow for adjustable positioning by abutment, enabling precise alignment and adjustment of the bumper support relative to the vehicle body, independent of stud position discrepancies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If bumpers are secured to studs or welded to the body, then the bumper can be attached to the vehicle body, but positional discrepancies in stud positions or welding heights cause misalignment of the bumper relative to the body
Solution Approach 1:
The attachment insert allows for positional adjustment by changing the insertion depth and rotation angle of the attachment insert within the through hole. The elastic tongue pieces enable the insertion part to expand and contract, allowing for fine-tuning of the bumper support position relative to the body to achieve proper alignment despite stud position variations
Solution Approach 2:
The attachment insert acts as an intermediary component between the stud and the bumper support. It absorbs the positional discrepancies through its elastic tongue pieces and rotational adjustment mechanism, mediating between the fixed stud position and the required bumper alignment position
2Manufacturing precision
If the bumper attachment device is fixed rigidly to the body, then the structure is simple and strong, but the position of the bumper relative to the body cannot be adjusted
Solution Approach 1:
The attachment device transitions from a rigid fixed structure to a dynamic adjustable structure. The attachment insert can rotate within the through hole and the elastic tongue pieces can expand and contract, providing dynamic adjustment capability while maintaining structural integrity during the adjustment process
3Strength
If elastic tongue pieces are used to expand the insertion part diameter for latching, then the attachment insert can be securely fixed in the bumper support, but the adjustment mechanism becomes more complex
Solution Approach 1:
The elastic tongue pieces are flexible thin-walled components that can expand and contract to engage with the through hole. This flexible structure provides secure latching while maintaining the ability to adjust the position before final engagement, combining security with adjustability
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 device optimizes the position of the bumper attachment device relative to the vehicle body, ensuring consistent gap dimensions and alignment between the bumper and the body, absorbing discrepancies in stud positions and heights, thereby maintaining a constant and accurate fit.
Implementation Method 1
Elastic tongue pieces may also be provided for expanding the diameters of the insertion parts in the outer surface of the insertion parts so that by pressing those elastic tongue pieces against the through holes, the attachment inserts may be provisionally latched in the bumper support
Implementation Method 2
gaps may be provided in parts above the through holes, which sandwich thin-walled elastic displacement parts; in this way, by turning the insertion parts in the through holes when the insertion parts have been inserted in and through the through holes, the thick-walled parts and the elastic displacement parts may be caused to abut, through which abutment the elastic displacement parts will be pushed away
Implementation Method 3
protrusions are provided in flanges provided about the peripheries of the insertion parts, protruding to the bumper support side, corresponding protrusions are provided about the peripheries of the through holes in the bumper support, protruding to the attachment insert side so that by rotating the insertion parts in the through holes when the insertion parts have been inserted into and through the through holes, the protrusions and the corresponding protrusions are caused to abut
Data Source
AI summary
A bumper attachment device is provided for attaching a bumper to a vehicle body disposed between the body and the bumper. A bumper support which can support the bumper and an attachment insert that can be rotatably attached to a securing part secured to the body are provided. The attachment insert has an insertion part inserted into and through a through hole in the bumper support, the insertion part is inserted into and through the through hole, and the insertion part is turned in the through hole while supporting the bumper support; in this way, a part of the attachment insert is caused to abut a part of the bumper support, and through that abutment, the position of the bumper support relative to the body is adjusted.