Rotatable Anchor Tab for Archery Mandible Engagement
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Solution Overview
Problem
Existing adjustable anchor tabs for archery fail to maintain precise anchoring due to lateral movement of the abutment structure against the archer's chin, affecting shot accuracy.
Innovation Solution
An adjustable anchor tab with a flexible body member and a rotatable tab positioning wheel that engages the archer's mandible, allowing for precise longitudinal and lateral adjustments to ensure consistent anchoring, featuring a flexible loop for finger support and optional finger spacer for enhanced comfort and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a fixed abutment structure is used to anchor the archer's chin, then anchoring position is established, but lateral movement occurs affecting shot accuracy
Solution Approach 1:
The patent applies the dynamics principle by replacing the fixed abutment structure with a rotatable wheel that can rotate about a horizontal axis. This dynamic element allows the wheel to accommodate lateral movements of the archer's mandible while maintaining vertical positioning, thereby preserving anchoring precision without compromising stability. The rotatable wheel adapts to the natural movements of the archer's jaw during drawing and anchoring.
Solution Approach 2:
The patent implements parameter changes by allowing the abutment structure to change its orientation through rotation. The wheel can rotate about its horizontal axis to change the contact point and contact angle with the mandible, adapting to variations in anchoring position while maintaining precise vertical alignment. This parameter change enables the structure to remain both precise and reliable.
2Stability of the object's composition
If the abutment structure is made rigid to maintain position, then structural stability is improved, but inability to accommodate recoil forces reduces reliability
Solution Approach 1:
The rotatable wheel provides a dynamic response to recoil forces. When recoil occurs, the wheel can rotate about its horizontal axis to absorb and accommodate the force, preventing structural damage while maintaining anchoring stability. The rigid support structure provides structural stability, while the rotatable wheel adds the necessary flexibility to handle recoil forces.
3Device complexity
If a simple abutment structure is used, then device complexity is reduced, but adjustment precision is insufficient
Solution Approach 1:
The addition of the rotatable wheel to the support structure creates a relatively simple yet effective mechanism that enables precise adjustment. The wheel's rotation about a horizontal axis provides the necessary adjustment capability without requiring complex multi-component systems. The simplicity of the wheel-support structure maintains low device complexity while achieving high anchoring precision.
Data Source
AI summary
An improved adjustable anchor tab is provided which includes a tab positioning assembly secured to the body member of the tab. Tab positioning assembly includes a rotatable wheel in one embodiment and includes a rotatable cylinder in another embodiment. The rotatable wheel of the first embodiment rotatably engages the lower inner side of the archer's mandible when in the anchor point. In the second embodiment, the roller extends at an angle with respect to the support upon which it is mounted.