Optical Carrier Control for Uniform Fastener Spacing
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Solution Overview
Problem
Existing fastener drivers require cumbersome modifications to the actuating wheel or track to change the spacing of fasteners, which is inconvenient and inefficient.
Innovation Solution
A carrier for a fastener driver utilizing an imaging sensor, such as a laser-based optical tracking sensor, to measure displacement and a processor to calculate and compare the distance traveled with a predetermined fastener spacing, allowing for easy adjustment of fastener spacing without physical modifications to the carrier.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional fastener drivers use a physical actuating wheel or track with fixed features to control fastener spacing, then the fastener spacing can be controlled, but the device complexity increases and adaptability decreases when spacing changes are needed
Solution Approach 1:
The patent replaces the mechanical actuating wheel or track system with optical sensors and electronic control systems. Instead of using physical bumps, recesses, or reference holes to trigger fastener discharge, the system uses optical detection of surface features combined with electronic processing to determine when to discharge fasteners. This substitution eliminates the need for complex mechanical components while maintaining spacing control functionality.
Solution Approach 2:
The patent implements a dynamic spacing control system where the fastener discharge timing is determined by real-time optical measurement and electronic calculation rather than fixed mechanical features. The system can adapt to different spacing requirements by modifying electronic parameters (such as discharge thresholds or calculation algorithms) without any physical modifications to the carrier or actuating mechanism, enabling flexible adaptation to various spacing needs.
2Ease of operation
If the radius of the actuating wheel or number of features is physically modified to change fastener spacing, then the spacing can be adjusted, but the ease of manufacture and operation deteriorates due to required physical modifications
Solution Approach 1:
The patent enables spacing adjustment by changing electronic parameters rather than physical dimensions. The system uses optical sensors to measure distance traveled by the carrier, and the electronic control system calculates discharge timing based on programmable spacing parameters. To change fastener spacing, operators simply modify electronic settings (such as discharge distance thresholds or calculation factors) without any physical modifications to the carrier, sensors, or fastener driver components.
Solution Approach 2:
The patent creates a universal carrier system that can accommodate different fastener spacing requirements using the same physical hardware. The optical sensors, processor, and fastener driver remain unchanged while the electronic control algorithm adapts to different spacing needs. This multi-functional capability allows a single device configuration to serve multiple spacing requirements across different applications.
3Manufacturing precision
If reference holes are spaced at fixed intervals in the track to provide uniform fastener spacing, then the spacing uniformity is achieved, but the adaptability to non-multiple spacings is lost
Solution Approach 1:
The patent replaces the fixed mechanical reference hole system with an optical measurement and electronic calculation system. Instead of relying on pre-spaced reference holes that limit spacing options to multiples of the hole interval, the system continuously measures carrier displacement using optical sensors and calculates discharge timing electronically. This enables precise uniform spacing at any interval length without being constrained by fixed mechanical reference features.
Solution Approach 2:
The patent implements a dynamic spacing determination system that calculates optimal discharge points based on real-time optical measurements and programmable spacing parameters. The system maintains spacing uniformity through electronic control algorithms that account for the specific spacing requirement, whether it be 3 inches, 4 inches, or any other interval. This dynamic approach replaces the static reference hole system while preserving uniformity and adding flexibility.
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
Enables lightweight and robust fastener discharge at uniformly spaced intervals with automated or semi-automated control, reducing the need for heavy mechanical parts and enabling easy modification of spacing settings.
Implementation Method 1
an imaging sensor attached to said platform and configured to determine and output values of displacement traversed by said carrier as it moves over the surface
Data Source
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AI summary
A carrier (100, 200) for use with a fastener driver (290) and a method (300) for discharging fastening elements at uniformly spaced intervals from a fastener driving system (205) comprising the fastener driver (290) and the carrier (100, 200) is disclosed. The carrier (100, 200) includes: a platform (110, 210) for supporting the fastener driver (290); at least one motion element (120a, 120b, 120c, 120d, 220a, 220b, 220c, 220d) coupled to said platform (110, 210) and supporting the carrier (100, 200) for motion over a surface (180, 280) to be fastened; an imaging sensor (130, 230) attached to said platform (110, 210) and configured to determine and output values of displacement traversed by said carrier (100, 200) as it moves over the surface (180, 280); and a processor (140, 240) operably coupled to said imaging sensor (130, 230), and configured to receive the said displacement values and calculate based thereon a distance traversed by the carrier (100, 200), wherein the processor (140, 240) is further configured to compare the calculated distance with a predetermined spacing value and generate a signal in response to the calculated distance having a magnitude equal to or greater than the predetermined fastener spacing value. The predetermined spacing value corresponds to the spacing with which fastening elements are to be discharged from the fastening driver (290) and thus the pitch of the fastening elements in the fastened surface.