Archery Release Device Leverage Link Trigger Mechanism
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Solution Overview
Problem
Existing archery release aids face issues with ease of use, release responsiveness, force transmission efficiency, reliability, adjustability, and repeatability, leading to difficulties in quickly activating triggers, delays in bowstring release, misfires, muscle fatigue, and reduced shooting accuracy.
Innovation Solution
The archery release device incorporates a support, a trigger, and a leverage link pivotally coupled to the support, with first and second arms configured to pivot about a fulcrum point, allowing for a hold and release arrangement transition with reduced trigger force requirement, utilizing a cord holder to manage the archery draw cord effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional triggers are used in release aids, then the trigger can hold the bowstring in the drawn position, but the trigger provides too much resistance making it difficult to quickly activate
Solution Approach 1:
The release aid is divided into separate functional components: a trigger assembly, a linkage component with trigger arm and sear arm, and a cord holder. This segmentation allows each component to be optimized independently, with the trigger providing minimal resistance and the linkage providing the mechanical advantage for reliable release.
Solution Approach 2:
The linkage component acts as an intermediary between the trigger and the cord holder. When the trigger is activated, it moves the trigger arm which then actuates the sear arm to release the cord holder. This intermediary mechanism transfers the trigger motion efficiently while maintaining control throughout the release sequence.
2Speed
If traditional linkage components are used, then the trigger can be connected to the hook, but there is too much delay between the user's pulling of the trigger and the hook's releasing of the bowstring
Solution Approach 1:
The cord holder and sear arm are pre-positioned and pre-loaded during the drawing phase. The sear arm is held in a ready position by the trigger, and the cord holder is positioned to engage the draw cord. When the trigger is pulled, the release sequence begins immediately without requiring additional positioning or adjustment actions.
Solution Approach 2:
The release function is extracted from a single integrated trigger mechanism and separated into distinct trigger activation and release execution functions. The trigger assembly handles only the activation input, while the linkage and cord holder handle the release execution, eliminating delays associated with complex multi-function triggers.
3Reliability
If traditional release aids are used, then the basic release function is achieved, but there are issues with reliability, adjustability and repeatability
Solution Approach 1:
The linkage component provides dynamic adjustment capability through its geometric design. The relative positions and orientations of the trigger arm and sear arm can be adjusted to optimize performance for different draw weights and shooting styles, enhancing reliability and adaptability without requiring multiple fixed configurations.
Solution Approach 2:
The release aid is designed to maintain its own positioning and tension through the inherent geometry of the linkage component. The trigger arm and sear arm naturally maintain their relative positions through the mechanical constraints of the system, reducing the need for external adjustment mechanisms or complex control systems.
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 design enhances the ease of use and responsiveness of the archery release device, reducing the necessary trigger force and improving shooting performance by allowing for a smoother transition between hold and release arrangements, thereby minimizing misfires and muscle fatigue.
Implementation Method 1
The leverage link is configured to pivot about a fulcrum point. The leverage link includes first and second arms. The first arm extends from the fulcrum point, and the first arm extends at least partially along a first arm axis. The first arm includes a first release interface located a lever distance from the fulcrum point.
Implementation Method 2
The lever distance is greater than the offset distance, which causes or contributes to a reduction in the magnitude of the trigger force that is necessary to cause the transition.
Data Source
AI summary
An archery release device and method are disclosed herein. The archery release device, in an embodiment, includes a trigger, a leverage link and a cord holder. In the hold arrangement, the trigger, the leverage link and the cord holder are coupled together through a direct connection or an indirect connection. The coupling, direct or indirect, causes the cord holder to hold a draw cord when the cord holder is subject to a pulling force. In the release arrangement, a release interface of the leverage link is decoupled from the trigger, and another release interface of the leverage link is decoupled from the cord holder.