C-Shaped Forearm Brace for Archery Bow Stability
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Solution Overview
Problem
Archery bows experience undesirable torques and rotations due to the grip force of the archer, affecting accuracy, and existing accessories can interfere with quick aiming and firing.
Innovation Solution
A C-shaped forearm brace with an arcuate design that extends around the forearm, supported by a post that can be adjusted for angular and linear translation, allowing the brace to accommodate natural bow rotations while providing feedback on grip pressure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the archer grips the bow tightly to hold it steady, then the bow stability improves, but manual torques increase causing undesirable rotation and reduced accuracy
Solution Approach 1:
A forearm brace serves as an intermediary device between the archer's hand and the bow. The brace engages the forearm and provides a stable reference frame that reduces the need for tight gripping, thereby eliminating manual torques while maintaining bow stability during aiming and release.
2Stability of the object's composition
If accessories are added to the bow to improve stability and reduce rotation, then bow stability improves, but device complexity increases and may interfere with quick aiming
Solution Approach 1:
The forearm brace combines multiple functions into a single device: it provides stability during aiming, accommodates natural bow rotation during release, and serves as a reference for proper form. This multi-functionality reduces the need for multiple separate accessories while maintaining bow stability.
3Manufacturing precision
If the bow is designed to rotate freely during release to accommodate torque, then accuracy is maintained, but control over bow position is reduced
Solution Approach 1:
The forearm brace provides tactile feedback to the archer about bow position and rotation. As the bow rotates naturally during release, the brace allows this movement while providing sensory feedback that helps the archer maintain proper form and accuracy without excessive gripping or manual correction.
Data Source
AI summary
A C-shaped forearm brace attaches to a bow through a support and a bracket that is attached to the front of a bow's riser. The brace extends arcuately around a forearm axis at least 180°, to partially encompass a forearm. The support is mounted in a slot in the brace and extends outwardly, transverse to the forearm axis. The support can be adjusted to allow angular and linear translation of the forearm brace relative to an axis that is parallel to the forearm axis. The forearm brace is circumferentially repositionable along the support. The support may be a post with a bearing surface skewed relative to a plane perpendicular to a longitudinal axis. Walls on opposite sides of this bearing surface straddle part of the forearm brace. The bracket supports a rearwardly extending element that attaches to and supports the post.