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 draw weight, which can affect aiming accuracy, and existing accessories often interfere with quick handling or provide inadequate balance.
Innovation Solution
A forearm brace with a C-shaped design that extends around the forearm, supported by a post adjustable in length, angle, and position, allowing for secure fitting and accommodating natural bow rotations while preventing improper grip-induced torques.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a tight grip is applied to control the bow, then manual torques are generated to counteract rotation, but this causes undesirable torques that rotate the bow azimuthally or elevationally
Solution Approach 1:
The forearm brace acts as a counterbalancing support that provides stability against bow rotation without requiring the archer to apply corrective torques through grip tension. The brace is positioned to counteract the natural rotation tendency of the bow upon release, allowing the archer to maintain a relaxed grip while preventing azimuthal or elevational rotation.
2Stability of the object's composition
If accessories are attached to the bow to reduce rotation and vibration, then stability is improved, but the accessories interfere with quick handling when hunting
Solution Approach 1:
The forearm brace is designed as a segmented, adjustable accessory that can be quickly attached and detached from the bow. The modular construction allows for rapid deployment when needed for stability during target archery, while enabling quick removal when fast handling is required for hunting scenarios.
Solution Approach 2:
The brace incorporates adjustable components that allow the archer to quickly modify or remove the accessory depending on the situation. The dynamic adjustment capability enables transition between stable shooting configuration and quick-handling configuration without permanent attachment.
3Power
If the bow is designed with substantial draw weight for power, then arrow launch capability is improved, but torques change direction abruptly at release causing rotation
Solution Approach 1:
The forearm brace is positioned to provide preliminary counterbalancing support before release occurs. By pre-positioning the brace to counteract the expected rotation from high draw weight release, the system prepares against the harmful effect before it occurs, allowing high power bows to release without abrupt rotational changes.
Data Source
AI summary
An accessory for an archery bow has a C-shaped forearm brace attached to the distal end of a support. The support can be supported on the bow. The brace extends arcuately around a forearm axis at least 180° in order to partially encompass a forearm. The support is mounted in an arcuate 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 adjustment 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 the longitudinal axis. This post may have on opposite sides of the bearing surface, a pair of walls that straddle a peripheral portion of the forearm brace.