Arrow Rest Delayed Release Torsion Spring
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Solution Overview
Problem
Existing drop away arrow rests release to a drop away position too promptly after the bow string is released, leading to an out of tune bow and inaccuracy in archery.
Innovation Solution
A drop away arrow rest system with a delayed release mechanism, utilizing a torsion spring and cord lever to delay the rest's transition to a drop away position after the bow string is released, providing additional support for the arrow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the rest is released promptly upon releasing the bow string, then the rest quickly moves to the drop away position, but the arrow loses support too early resulting in inaccuracy
Solution Approach 1:
The torsion spring is pre-loaded during the drawing phase, storing energy that will be released in a controlled manner. The cord lever is pre-positioned to trigger the release mechanism at the precise moment needed, ensuring the rest remains supported during the critical initial arrow flight phase before dropping away
2Measurement precision
If the rest remains in the cocked position longer, then the arrow receives prolonged support improving accuracy, but the rest delays moving to the drop away position
Solution Approach 1:
The system transitions from a static rest position to a dynamic controlled release. The torsion spring provides a progressive release of stored energy, and the cord lever converts this into a timed mechanical action that dynamically adjusts the rest's position based on the draw cycle phase, allowing optimal support duration followed by rapid drop away
3Measurement precision
If a delayed release mechanism is added, then the rest provides prolonged arrow support, but the device complexity increases
Solution Approach 1:
The torsion spring and cord lever are integrated into the existing rest structure, combining the delayed release function with the traditional drop away mechanism. The cord lever serves dual purposes: it triggers the release and controls the timing, while the torsion spring provides both the delay mechanism and the force for the drop away motion, reducing the need for separate components
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 delayed release mechanism ensures the arrow receives prolonged support after being shot, enhancing shot accuracy by maintaining the rest in the cocked position for a few milliseconds after the string is released, thus stabilizing the arrow's flight path.
Implementation Method 1
The delayed release mechanism comprises an end cap and a torsion spring connecting the end cap to the cord lever. The cord lever is configured to load the torsion spring upon drawing the bow string and upon releasing the bow string, first release the load on the torsion spring without triggering the release of the rest to a drop away position, and then trigger the release of the rest to a drop away position.
Data Source
AI summary
A drop away arrow rest system comprises a rest and a cord lever operatively connected to the rest for moving the rest to a cocked position for supporting an arrow in relation to a bow upon drawing a bow string and upon releasing the bow string, triggering the release of the rest to a drop away position. A delayed release mechanism comprises an end cap and a torsion spring connecting the end cap to the cord lever. The cord lever is configured to load the torsion spring upon drawing the bow string and upon releasing the bow string, first release the load on the torsion spring without triggering the release of the rest to a drop away position, and then trigger the release of the rest to a drop away position.