Hand Tool Chamber Pressure Sensing for Operational State Feedback
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Solution Overview
Problem
Existing hand tools lack effective mechanisms to monitor and evaluate the air pressure within their chambers, which is crucial for understanding their operational state and ensuring safety and efficiency.
Innovation Solution
The hand tool incorporates a system to change and evaluate air pressure within its chamber, using a pressure sensor to monitor changes in pressure during the displacement of the moving part, allowing for real-time feedback and safety monitoring, independent of the air pressure generated for the primary operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a pressure sensor and air pressure evaluation system are added to the hand tool, then the ability to monitor operational state and detect issues is improved, but the device complexity increases
Solution Approach 1:
The air pressure monitoring system serves multiple functions: it monitors operational state, detects completion of tasks, identifies potential issues like accumulator damage, and provides user feedback. This multi-functionality justifies the added complexity by delivering comprehensive reliability improvements across multiple operational aspects simultaneously.
Solution Approach 2:
The system implements feedback by evaluating air pressure changes and providing information back to the user about tool state and operational status. This closed-loop feedback mechanism enables real-time monitoring and detection of issues, directly improving reliability while the feedback infrastructure itself accounts for the increased device complexity.
2Loss of information
If air pressure is used to monitor hand tool state, then operational feedback is improved, but the system requires additional sensing and evaluation components
Solution Approach 1:
Air pressure serves as an intermediary parameter that indirectly reflects the operational state of the hand tool. Instead of directly sensing mechanical position or force, the system uses air pressure changes within the chamber as a mediator to infer tool state, task completion, and potential issues. This intermediary approach provides comprehensive information while using a relatively simple pressure sensing mechanism.
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
This system enables real-time monitoring of the hand tool's operational state, providing feedback to the user and ensuring safe and efficient operation by detecting changes in air pressure, which can indicate completion of tasks or potential issues such as accumulator damage.
Implementation Method 1
During the displacement of the moving part from the movement start position in the direction toward the movement end position, but also additionally or alternatively possibly during the displacement of the moving part from the movement end position back in the direction toward the movement start position, a change in air pressure may arise in the chamber.
Data Source
AI summary
A hand tool includes an actuator which drives a moving part directly or via a gearbox or by a hydraulic medium for performing an intended operation. A chamber formed in the hand tool can be changed and evaluated for acquiring a state of the hand tool. The operation can be performed independently of the air pressure that develops in the chamber.