Swivel Dagger Pin Mounting for Misaligned Device Holes
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Solution Overview
Problem
Existing dagger pin interface systems require custom installation and modifications when the mounting holes in electronic devices do not align with the fixed pins, leading to costly and time-consuming design changes during the manufacturing process.
Innovation Solution
A dagger pin interface apparatus with a stationary and swiveling pin configuration, where the swiveling pin can pivot to engage non-aligned mounting holes, allowing for a wider tolerance range and eliminating the need for custom installations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If fixed dagger pins are used on the structure, then the mounting interface is simple and robust, but the device cannot be mounted when mounting holes do not align with the pins due to tolerancing variations
Solution Approach 1:
The patent applies the dynamics principle by making one of the two dagger pins swiveling rather than fixed. The swiveling pin can rotate about its axis to accommodate misalignment between the mounting holes and pins, allowing the device to be mounted even when tolerancing variations cause hole positions to deviate from the ideal alignment. This dynamic adjustment capability resolves the contradiction by adapting the mounting interface to various alignment conditions without increasing overall interface complexity.
Solution Approach 2:
The patent applies parameter changes by allowing the orientation angle of the swiveling pin to vary. The pin can change its angular parameter to match the actual position of the mounting hole, thereby accommodating tolerancing variations. This parameter adjustment enables the mounting interface to adapt to different hole positions without requiring a completely different mounting mechanism.
2Reliability
If custom installation procedures or device modifications are employed to achieve alignment, then the device can be mounted, but the process becomes costly and time-consuming
Solution Approach 1:
The patent applies preliminary action by pre-configuring one pin to be swiveling before the mounting operation begins. This pre-prepared flexibility allows the installer to simply guide the device onto the pins without requiring time-consuming alignment adjustments, custom procedures, or modifications during installation. The swiveling capability is already in place, enabling immediate accommodation of any alignment variations.
Solution Approach 2:
The swiveling pin performs self-alignment by automatically rotating to match the position of the mounting hole as the device is guided onto the pins. This self-adjusting mechanism eliminates the need for manual alignment procedures or custom installation steps, significantly reducing installation time and complexity while ensuring reliable mounting.
3Ease of manufacture
If both mounting holes are designed to align with fixed pins, then the design is simple, but any tolerancing variation requires expensive design changes during manufacturing
Solution Approach 1:
The patent maintains manufacturing simplicity by keeping the overall mounting interface design straightforward, with only one pin having swiveling capability. This partial dynamic feature provides sufficient adaptability to accommodate tolerancing variations without requiring complex mechanisms or multiple movable components. The ease of manufacture is preserved because the swiveling mechanism is integrated into a single pin rather than requiring system-wide complexity.
Solution Approach 2:
The patent applies parameter changes by allowing the swiveling pin's orientation angle to vary, providing adaptability to tolerance variations. This single parameter change capability in one pin is sufficient to accommodate the necessary alignment variations, eliminating the need for expensive design changes during manufacturing while maintaining manufacturing simplicity.
Data Source
AI summary
A dagger pin interface apparatus with a swivel pin is used in removably mounting a device on a structure where one of the apparatus pins is stationary relative to the structure and a second of the apparatus pins swivels relative to the structure when mounting the device to the structure. When mounting the device to the structure the one stationary pin can be aligned with and inserted into one mounting hole of the device and the second swiveling pin can engage in, pivot and move into a second mounting hole in the device when the second mounting hole is not completely aligned with the second pin.