Gravity-Controlled Switching Link for Hand-Held Setting Tool Actuation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing positioning and actuation devices for hand-held setting tools face issues with wear due to high forces required for safety locking, which reduces their effectiveness, especially when the tool is not oriented vertically.
Innovation Solution
A gravity-controlled intermediate element is introduced between the first and second controlling elements of the switching link, allowing the device to operate without high blocking forces, minimizing wear by interrupting the switching link when the tool is not in the predetermined orientation, and allowing free movement when actuated vertically.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a ball-controlled safety locking device is used to prevent actuation when not vertically oriented, then safety is improved, but high forces are applied to blocking components causing wear over time
Solution Approach 1:
The patent replaces the traditional mechanical ball-controlled locking system with a magnetic field-based sensing system. The Hall effect sensor detects the orientation of the setting tool and controls actuation through electronic means rather than mechanical blocking, eliminating wear on mechanical components while maintaining safety functionality.
Solution Approach 2:
The patent utilizes the compressed air system already present in the setting tool to actuate the nozzle. By controlling the release of compressed air through an electronic switch based on Hall effect sensing, the system achieves actuation without mechanical wear from repeated blocking and unblocking operations.
2Reliability
If a ball is guided in a diagonal channel to prevent actuation in vertical orientation, then safety is improved, but the device complexity increases
Solution Approach 1:
The patent replaces the complex mechanical ball-guiding system with a simple magnetic field sensing arrangement. The Hall effect sensor and magnet provide orientation detection without requiring diagonal channels, moving links, or ball guidance mechanisms, significantly reducing device complexity.
Solution Approach 2:
The patent uses a magnetic field representation of the tool's orientation rather than physical mechanical elements. The Hall effect sensor detects the magnetic field orientation caused by a magnet on the tool, creating an electronic copy of the physical orientation state without requiring physical blocking mechanisms.
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 reduces wear and maintains consistent actuation functionality across various orientations, ensuring the setting tool can be safely actuated without high force application, thus extending the device's operational lifespan.
Implementation Method 1
a Hall-effect sensor (36) for detecting changes in a magnetic field caused by movement of the magnet (28)
Data Source
AI summary
A positioning device for a hand-held setting tool (10) having an actuation switch (13) for actuating the setting tool (10), with the positioning device including a rod-shaped holder (21); a connection element (22) for the setting tool (10) arranged at an end of the holder (21), and an actuating switching device including an actuation element (24), a switching link (30) connecting an actuation element (24) to the actuation switch (13), and a safety device (40) for preventing actuation of the actuation switch (13) and having a gravity-controlled intermediate element (41) having an actuation position in which it is positioned between first controlling element (34) and second control element (35) of the switching link (30), and an interruption position (16) in which it interrupts the switching link (30).