Archery Nock System With Segmented Bushing For Retention
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Solution Overview
Problem
Current archery nock systems lack the ability to securely retain a replaceable lighted nock assembly while allowing for easy removal and replacement, and there is no option for swapping between lighted and non-lighted nocks with equivalent performance characteristics.
Innovation Solution
A nock system comprising a bushing with a hollow interior and a nock assembly featuring a unique inner diameter configuration, registration features, and a battery stop design that allows for secure retention and easy removal, enabling the use of either lighted or non-lighted nocks with equivalent performance by adjusting insertion and removal forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a cylindrical battery/LED component is disposed in the nock assembly, then the nock can be lighted to track arrow flight, but the nock cannot be easily removed or replaced when the battery is spent
Solution Approach 1:
The nock system is divided into two main segments: a permanent bushing component that remains in the shaft, and a removable nock assembly that can be easily taken out. This segmentation allows the lighting component to be securely housed while enabling simple removal when replacement is needed.
Solution Approach 2:
The battery/LED component is nested within the nock assembly, which itself fits within the bushing. This nested structure allows the lighting system to be compact and secure, while the outer nock assembly can be easily removed as a complete unit without disturbing the bushing or shaft.
2Reliability
If the nock assembly is designed for secure retention in the shaft, then reliability is improved, but the ability to replace the nock assembly is compromised
Solution Approach 1:
By separating the retention function (bushing) from the replaceable function (nock assembly), the system achieves both secure retention and easy replacement. The bushing remains permanently installed in the shaft, providing reliable retention, while the nock assembly can be freely removed and replaced.
Solution Approach 2:
The bushing acts as an intermediary component between the shaft and the nock assembly. It provides the secure retention interface with the shaft while allowing the nock assembly to be easily inserted and removed, mediating between the need for security and the need for replaceability.
3Adaptability or versatility
If the nock system allows replacement of the lighted nock with a non-lighted nock, then versatility is improved, but the structural design becomes more complex
Solution Approach 1:
The bushing is designed as a universal interface that can accommodate both lighted nock assemblies (with battery/LED) and non-lighted nock assemblies. This multi-functional design allows the same retention mechanism to support different functional variants without requiring separate systems, thereby improving versatility while controlling complexity.
Solution Approach 2:
The lighting components (battery and LED) are extracted as optional elements within the nock assembly rather than being integral to the basic retention structure. This allows the core bushing design to remain simple and universal, while the nock assembly can be configured with or without lighting capabilities as needed.
Data Source
AI summary
An archery nock system includes a bushing and a nock assembly. A hollow interior of the bushing can define a first inner diameter region, a reduced inner diameter region, a sloped inner diameter region and an expanded inner diameter region. A diameter of the reduced inner diameter region is smaller than that of the first inner diameter region. The diameter of the reduced inner diameter region is smaller than that of the expanded inner diameter region. The first inner diameter region is located longitudinally between the reduced inner diameter region and the proximal end of the bushing. The expanded inner diameter region is located longitudinally between the reduced inner diameter region and the distal end of the bushing. The sloped inner diameter region spans longitudinally between the reduced inner diameter region and the expanded inner diameter region. An LED turn ON force can be greater than the turn OFF force.