Orthogonal Cord Force Device for Archery Arrow Rest
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current arrow rest cord systems using coiled springs are prone to failure due to overextension or compression, leading to inconsistent effective cord length and potential system failure when caught on debris, affecting the consistency and reliability of arrow flight.
Innovation Solution
An archery arrow rest orthogonal cord force device that applies resistance orthogonal to the linear axis of the cord, eliminating the need for conventional springs and providing robust resistance by using a housing member with a circuitous path and elastomeric material to increase cord length effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If coiled springs are used to apply resistance to the cord, then the arrow rest mechanism can be activated, but the spring may fail due to overextension or compression, resulting in inconsistent effective cord length and system failure
Solution Approach 1:
The patent replaces the conventional coiled spring mechanical system with an elastomeric material-based system. The elastomeric material is attached to the housing member and provides resistance force through elastic deformation when the cord is pulled, eliminating the mechanical spring components that are prone to failure from overextension or compression.
Solution Approach 2:
The patent changes the physical state and material properties by using elastomeric material instead of metal springs. The elastomeric material provides progressive resistance through its elastic properties, maintaining consistent force application without the risk of spring failure modes such as coil binding, over-compression, or over-extension.
2Object-affected harmful factors
If the cord is caught on external debris, then the spring can be over stretched, but this renders the arrow rest system inoperable
Solution Approach 1:
The elastomeric material inherently provides cushioning and compliance that prevents sudden failure when debris is encountered. Unlike rigid spring systems that can be abruptly overloaded, the elastomeric material gradually deforms and absorbs shock loads, preventing the cord from being over-stretched to failure point.
Solution Approach 2:
The patent uses elastomeric material which combines the properties of flexibility, elasticity, and durability in a single material system. This composite approach integrates the functions of spring resistance, shock absorption, and debris protection into one robust material solution.
3Ease of operation
If conventional springs are used, then the cord length changes as the spring winds, compresses or stretches, but this affects the consistency of the system
Solution Approach 1:
The patent replaces the mechanical winding and compression/stretching action of coiled springs with the elastic deformation of elastomeric material. This substitution eliminates the variable cord length changes associated with spring coil engagement, providing more consistent cord length throughout the activation cycle.
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 ensures consistent and robust resistance to the arrow rest cord, preventing failure due to overextension and maintaining effective spring performance, enhancing the reliability and accuracy of arrow flight.
Implementation Method 1
an elastomeric material to increase cord length effectively
Data Source
AI summary
An example archery arrow rest orthogonal cord force device for an arrow rest of an archery bow includes a housing member having a first end and a second end. A circuitous path is formed at least partly within the housing member. The circuitous path extends at least partly between the first end and the second end of the housing member. The housing member is attached along a linear axis of a cord defined by two attachment points of the cord in the arrow rest as part of the archery bow.