Trigger Arrangement With Magnetic Feedback Mechanism
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Solution Overview
Problem
Conventional trigger arrangements in electronic devices often fail to provide adequate feedback due to space or cost constraints, making it difficult for users to confirm successful engagement, especially in situations where visual or auditory feedback is not possible.
Innovation Solution
A trigger arrangement with a feedback mechanism that includes a movable trigger mechanism and a biasing force, utilizing a magnet and a coil spring to create a tactile 'click' sensation by altering the resistance felt by the user upon activation, allowing for adjustable feedback levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional feedback mechanism is used, then tactile feedback response is provided, but space requirements and device complexity increase
Solution Approach 1:
The feedback mechanism is merged with the trigger mechanism itself. The spring that provides the biasing force also creates the tactile feedback click sensation when the trigger is engaged, eliminating the need for separate feedback components. This integration resolves the contradiction by providing reliable feedback confirmation while minimizing device complexity and space requirements.
Solution Approach 2:
The spring component serves multiple functions: it provides the biasing force to return the trigger to its initial position, and simultaneously generates the tactile feedback click sensation upon trigger engagement. This multi-functionality resolves the contradiction by delivering feedback confirmation without adding extra components, thus maintaining simplicity while improving reliability.
2Reliability
If a conventional feedback mechanism is used, then tactile feedback response is provided, but space constraints are violated
Solution Approach 1:
The feedback function is combined with the existing trigger assembly components. The spring integrated into the trigger mechanism provides both the restoring force and the tactile click feedback, eliminating the need for separate feedback mechanism components that would occupy additional space. This resolves the contradiction by confirming trigger engagement within the existing spatial constraints.
Solution Approach 2:
The spring component performs dual functions: returning the trigger to its initial position through biasing force, and generating the tactile feedback click sensation. This multi-functionality allows the system to provide reliable feedback confirmation without requiring additional space for separate feedback components, thus resolving the space constraint contradiction.
3Reliability
If trigger engagement force is increased, then activation reliability is improved, but user effort increases
Solution Approach 1:
The spring's physical parameters (coil density, wire diameter, free length) are optimized to achieve the desired balance between engagement force and feedback sensation. By adjusting these parameters, the system provides sufficient force for reliable activation while maintaining a reasonable engagement force level that does not excessive user effort, resolving the contradiction between reliability and user effort.
Solution Approach 2:
The spring is designed with specific local characteristics (coil spacing, wire thickness in critical areas) to concentrate the feedback force at the point of trigger engagement while distributing the load appropriately. This localized optimization ensures reliable activation detection without requiring uniformly high force throughout the entire trigger mechanism, thus resolving the contradiction between activation reliability and user effort.
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 users to feel a distinct tactile feedback confirming trigger activation, even in constrained spaces, enhancing user experience and perception of quality, while maintaining minimal hardware and space requirements.
Implementation Method 1
the feedback mechanism includes a magnet and a ferromagnetic object on which the magnet exerts a magnetic force biasing the trigger mechanism to the first position
Implementation Method 2
the feedback mechanism includes a magnet and a ferromagnetic object on which the magnet exerts a magnetic force biasing the trigger mechanism to the first position, and a coil spring exerting a force on the magnet
Implementation Method 3
The feedback mechanism produces a tactile feedback response when the trigger mechanism is moved from the first position
Data Source
AI summary
A device includes a trigger arrangement activating a function of the device. The trigger arrangement includes a trigger mechanism movable between a first position and a second position. The device also includes a feedback mechanism exerting a force biasing the trigger mechanism to the first position. The feedback mechanism produces a tactile feedback response when the trigger mechanism is moved from the first position.