Bowfishing Shaft Adapter Circumferential Stop Design
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Solution Overview
Problem
Conventional bowfishing arrows experience uneven 'pull' and rapid wear due to the asymmetric force distribution between the slide and stop, leading to deformation and reduced aerodynamics.
Innovation Solution
A bowfishing apparatus featuring a slide assembly with a circumferential receiver and a stop assembly including a circumferential dampener, which provides 360-degree contact and distributes impact evenly, preventing relative rotation and longitudinal movement, and is designed for attachment to the arrow shaft without a fastener.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a conventional slide and stop assembly is used with a single fixed radial projection, then the structure is simple, but the stop wears quickly and unevenly due to concentrated contact forces
Solution Approach 1:
The stop assembly is segmented into multiple radial projections distributed around the circumference, rather than a single projection. This segmentation distributes the contact forces from the slide across multiple contact points, preventing concentrated wear at a single location and thereby improving stop durability while maintaining reasonable structural complexity
Solution Approach 2:
Multiple radial projections are positioned at different locations around the circumference of the stop assembly. This creates multiple localized contact zones that share the load, ensuring even wear distribution across all projections rather than concentrating wear at one point, thus improving reliability without significantly increasing complexity
2Ease of manufacture
If a single fixed radial projection stop is used, then the manufacturing is simple, but asymmetric forces cause deformation of the stop and shaft
Solution Approach 1:
The stop assembly is divided into multiple radially extending projections spaced around the circumference. This segmentation creates multiple symmetric contact points that distribute asymmetric impact forces from the slide across multiple locations, preventing stress concentration and subsequent deformation of either the stop or the shaft while remaining manufacturable
Solution Approach 2:
The invention addresses asymmetric force distribution by creating a symmetric arrangement of multiple radial projections. This symmetric configuration counteracts asymmetric impact forces by providing balanced contact points around the circumference, thereby preventing deformation while maintaining manufacturing simplicity
3Device complexity
If a conventional stop assembly is used, then the structure is simple, but the arrow has poor aerodynamics due to asymmetric extension
Solution Approach 1:
The stop assembly uses multiple radially extending projections distributed around the circumference rather than a single projection. This segmented, symmetric configuration creates a more aerodynamic profile by reducing asymmetric extension and creating a more uniform flow pattern around the arrow shaft, improving aerodynamics without significantly increasing structural complexity
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 enhances the longevity of the stop assembly, provides a smoother 'pull' for the fisherman, and improves the aerodynamics of the arrow by distributing pressure and wear evenly, reducing deformation and maintaining arrow stability.
Implementation Method 1
the stop assembly including a circumferential dampener tapering radially outward toward the nock end portion of the arrow shaft, said dampener adapted for at least partial insertion into the receiver of the slide assembly
Implementation Method 2
provides 360-degree contact and distributes impact evenly, preventing relative rotation and longitudinal movement
Data Source
AI summary
An enhanced slide and a circumferential stop assembly for use with a bowfishing arrow may include matching shapes for engaging one another in use. The engagement of such matching shapes offers many improvements over conventional slide and stop assemblies, including an even circumferential distribution of impact between the slide and the stop as well as inhibiting relative longitudinal or rotational movement between the slide and stop assemblies. The stop assembly may further include a nock adapter for engaging a nock, thereby serving as a dual purpose adapter. For ease of use and installation, the stop assembly may be an outsert, meaning that it is adapted to fit snugly over an arrow shaft.