Panel Edge Pilasters for Foolproof Nut Clamp Alignment
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Solution Overview
Problem
Incorrect positioning of U-shaped nut clamps on vehicle dashboard panels leads to safety defects and increased production costs due to the need for expensive detection systems and rework.
Innovation Solution
A panel edge design with lateral pilasters that guide the nut clamp into correct alignment, preventing incorrect installation by allowing the wafer to slide but not the second branch if misaligned, thus acting as a foolproof mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional panel edges without guiding features are used, then the manufacturing process is simple, but the risk of incorrect nut clamp installation is high
Solution Approach 1:
The panel edge with lateral pilasters provides self-guiding functionality, allowing the nut clamp to automatically align itself during installation without external assistance or complex detection systems. The pilasters create a mechanical guide that the wafer follows, making the installation process self-correcting and foolproof.
Solution Approach 2:
The lateral pilasters act as an intermediary guiding element between the panel edge and the nut clamp. They provide a mechanical interface that guides the wafer into correct alignment, mediating the interaction between the installer and the fastening components to prevent misalignment.
2Reliability
If expensive optical detection systems are used to identify incorrectly positioned nut clamps, then detection accuracy is high, but production costs increase
Solution Approach 1:
The patent replaces complex optical detection systems with a simple mechanical guiding system. The lateral pilasters provide passive mechanical guidance that prevents incorrect positioning through physical constraints, eliminating the need for expensive sensors, cameras, and control systems while maintaining high reliability.
Solution Approach 2:
The lateral pilasters are simple, inexpensive mechanical features that can be easily integrated into the panel edge design. They provide a low-cost alternative to expensive detection and correction systems, achieving the same reliability goal through simple geometry rather than complex technology.
3Productivity
If no guiding features are provided on the panel edge, then the manufacturing process is fast, but incorrect assembly errors occur frequently
Solution Approach 1:
The lateral pilasters are pre-formed features on the panel edge that perform the alignment function in advance of the actual fastening operation. By providing guiding features during the panel manufacturing process, the system ensures correct alignment is built-in before assembly begins, preventing errors rather than detecting or correcting them later.
Data Source
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AI summary
The invention relates to a panel edge for receiving a U-shaped nut clamp of the type comprising a first and a second branch connected by a base, a plate made by cutting into said first branch by being connected thereto and carrying a threaded shaft axially aligned with a hole formed in said second branch, said panel edge comprising a flange (21) which is to be overlapped by the nut clamp and is provided with an orifice (22) arranged so as to be axially aligned with said shaft and said hole after the installation of the nut clamp, said panel edge comprising a first pair of lateral pilasters (27A, 27B) projecting from a first face (25) of the flange (21) and extending parallel to the axis of engagement of the nut clamp while being spaced apart by a distance slightly greater than the width of said plate, but smaller than that of said second branch.