Hinged Bow Support With Sliding Anchor Arm for Tree Stability
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Solution Overview
Problem
Existing archery bow supports that attach to trees often fail to securely hold the bow due to the weight-induced moment, especially when the tree lacks a planar face, leading to instability and potential detachment.
Innovation Solution
A bow support with a first arm and a second arm joined by a hinge, featuring a slidable support arm with a threaded fastener that anchors below the primary anchor point, resisting bending forces and providing stability through adjustable positioning and secure fastening to the tree.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a single-arm bow support is used to hold the bow away from the tree, then the hunter has hands-free operation, but the weight-induced moment causes the support to pull out of the tree
Solution Approach 1:
The patent applies a counterweight principle by introducing a second arm that extends below the primary support arm. This second arm provides a downward force that counteracts the upward moment created by the bow weight, preventing the support from pulling out of the tree. The counterbalancing arm acts as a mechanical counterweight system that maintains equilibrium.
Solution Approach 2:
The support structure is segmented into multiple functional components: a primary support arm for holding the bow, a second counterbalancing arm for stability, a hinge joint for articulation, and a threaded fastener for anchoring. This segmentation allows each component to perform its specific function while working together as an integrated system.
2Adaptability or versatility
If the support arm is anchored at a point away from the planar face of the tree, then the support can be installed on trees without a planar face, but the anchoring becomes more difficult and less secure
Solution Approach 1:
The patent transitions from a two-dimensional planar anchoring problem to a three-dimensional solution by allowing the support arm to anchor at points both above and below the tree's planar face. The vertical dimension is utilized to create a moment arm that provides stability, and the hinge joint allows articulation in multiple directions to accommodate non-planar surfaces.
Solution Approach 2:
The hinge joint introduces dynamic adaptability to the support system, allowing it to adjust its angle and position to accommodate trees with various surface geometries. This dynamic adjustment capability enables reliable anchoring on non-planar surfaces while maintaining structural integrity.
3Reliability
If a threaded fastener is used to anchor the support arm, then secure fastening is achieved, but the installation time and complexity increase
Solution Approach 1:
The threaded fastener is designed to be pre-positioned on the support arm before installation. This preliminary preparation allows for quicker installation as the fastener is already in place and only needs to be engaged with the tree, reducing the overall installation time while maintaining secure anchoring.
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 solution effectively counters the weight-induced moment, ensuring the bow remains securely positioned and accessible, even on trees without a planar face, by using a threaded fastener to anchor the support arm below the primary anchor, preventing detachment and allowing hands-free operation for hunters.
Implementation Method 1
The support arm has a threaded fastener that anchors below the primary anchor point
Data Source
AI summary
The disclose describes an improved holder for an archery bow which includes two arms pivotally attached to one another and a sliding support arm for resisting bending moments due to the weight of the bow being held at a distance away from a tree. The support arm and one of the arms each feature a separate fastener for securing the holder to a tree.