Two-Part Threaded Attachment for Thin-Walled Coated Components
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Solution Overview
Problem
Existing methods for introducing mounting threads into components, especially thin-walled components, often result in damage to the component coating and increased corrosion susceptibility, and require time-consuming or costly assembly processes.
Innovation Solution
A two-part attachment unit comprising an attachment body with a mounting thread and a holding element that can be attached to the component without impact, using a non-destructive and reversibly detachable connection, such as elastically deformable webs or engagement hooks, to provide a mounting thread without damaging the component coating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If rivet nuts are driven by impact into recesses to provide mounting threads, then mounting threads can be provided on components, but the component coating is damaged and corrosion susceptibility increases
Solution Approach 1:
The attachment unit is divided into two separate parts: an attachment body bearing the mounting thread and a holding element for securing the attachment body to the component. This segmentation allows the attachment body to be installed without impact, avoiding coating damage, while still providing the mounting thread function.
Solution Approach 2:
The attachment body serves as an intermediary element between the component and the mounting thread requirement. Instead of directly driving a rivet nut into the component (which damages the coating), the attachment body is first attached to the component surface, and then provides the mounting thread through its internal thread structure.
2Ease of manufacture
If rivet nuts are driven by impact into recesses to provide mounting threads, then mounting threads can be provided on components, but the assembly process becomes time-consuming and costly
Solution Approach 1:
The attachment body is prepared in advance with the internal mounting thread already formed. This preliminary preparation allows the attachment body to be simply attached to the component surface without requiring time-consuming impact driving or complex assembly operations, thereby reducing overall assembly time.
3Ease of manufacture
If mounting threads are directly introduced into thin-walled components, then mounting threads are provided, but the material thickness is insufficient to provide a robust mounting thread
Solution Approach 1:
Instead of creating the mounting thread within the thin-walled component (one-dimensional solution), the attachment body provides the mounting thread in a separate dimension - on its own structure that is then attached to the component surface. This allows a robust threaded structure to be provided without requiring sufficient material thickness in the component itself.
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 solution allows for the provision of a mounting thread on thin-walled components without damaging the coating, reducing the risk of corrosion and accelerating aging, while enabling single-person assembly and reducing assembly effort.
Implementation Method 1
The one or the several connecting part/s of the holding element is/are adapted to be connected subject to elastic deformation to the holding portion of the attachment body
Data Source
AI summary
An attachment unit for providing a mounting thread as an internal thread on a component, in particular on a thin-walled component, includes an attachment body that bears the mounting thread and is arranged on a first side of the component in a region of a recess extending through the component, and a holding element that is arranged on a second side of the component in the region of the recess extending through the component and disposed opposite to the attachment body so as to hold the attachment body on the first side of the component.