Dual Mode Drop-Away Archery Bow Rest with Cable-Actuated Launcher
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Solution Overview
Problem
Current drop-a-way archery bow rests lack versatility, speed, and quiet operation, often failing to adjust seamlessly between rest and shooting positions, which can lead to misfires due to interference with the arrow's flight.
Innovation Solution
A dual-mode drop-a-way archery bow rest with adjustable launcher shafts and a cable-connected mechanism that allows the launcher to move from a down position to an upright position, providing minimal contact and quick release, and is fully adjustable in X, Y, and Z axes for optimal arrow containment and alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the arrow rest is designed to move upward to lift and hold the arrow during draw, then the arrow is securely positioned for shooting, but the mechanism becomes more complex and may interfere with arrow flight if not released quickly enough
Solution Approach 1:
The launcher is designed to be dynamic rather than static, automatically transitioning between down position (at rest) and up position (during draw) based on bow string tension. This dynamic behavior eliminates the need for complex manual control mechanisms while ensuring reliable arrow positioning when needed and clear path when not needed.
Solution Approach 2:
The launcher mechanism is self-actuating through cable connection to the bow string. As the archer draws the string, the cable automatically pulls the launcher upward into position. The system serves itself by using the draw action to position the launcher, eliminating the need for separate control mechanisms.
2Speed
If the launcher moves quickly out of the way after release, then arrow flight is not interfered with, but the operation must be extremely quiet to avoid spooking game
Solution Approach 1:
The launcher operates in periodic cycles: down at rest (quiet), up during draw (controlled movement), down after release (quick but controlled). This periodic action allows the system to achieve fast release when needed while maintaining quiet operation during hunting periods when the launcher remains in the down position.
Solution Approach 2:
The cable system acts as an intermediary between the bow string and launcher, transmitting force smoothly and quietly. The gradual cable tension buildup during draw and controlled release afterward mediate the launcher's movement, reducing sudden noises while maintaining operational speed.
3Measurement precision
If the arrow rest is adjustable in multiple axes, then optimal arrow containment and alignment can be achieved, but the device complexity increases
Solution Approach 1:
The adjustment mechanism is segmented into discrete, simple components: X-axis adjustment for horizontal positioning, Y-axis adjustment for vertical positioning, and Z-axis adjustment for depth positioning. Each axis is independently adjustable through simple mechanical means, breaking down the complex three-dimensional adjustment into manageable segments that maintain precision while reducing overall complexity.
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 fast, quiet, and adjustable operation, ensuring the arrow is securely held in either position as the bow is drawn, allowing for precise shooting without interference, and can be easily removed for storage.
Implementation Method 1
At least one of the shafts is connected to a cable which is turn is connected to the bow string, lower limb or bow cables to pull the arrow rest into a biased position for launch functionality
Implementation Method 2
at least two slidably connected, rotatable, biased, horizontally and axially aligned launcher shafts
Data Source
AI summary
A drop-a-way dual mode archery bow rest for supporting an arrow as the bow is drawn is releasably mounted on the riser of a compound bow. The bow rest includes a housing with enclosed left and right sides and is adjustable in the X, Y and Z axes. In the housing are at least two slidably connected, rotatable, biased, horizontally- and axially-aligned arrow rest shafts mounted in the left and the right sides of the housing. The shafts are rotatably and movably connected by an axially-aligned indexing shaft. A launcher is attached to one of the shafts, operating from a downward position or an upward, ready-to-shoot position, lightly supporting the arrow. At least one shaft is connected to a cable connected to the bow string, lower limb or bow cables to pull the arrow rest and launcher into a biased position for launch functionality.