Arrow Shaft Fletching Indication Patterns for Alignment
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Solution Overview
Problem
Existing arrow shafts face challenges in accurately mounting fletchings due to manual placement and lack of standard guides, leading to inconsistent fletching positions and orientations, which affect the arrow's flight stability and accuracy.
Innovation Solution
A cylindrical arrow shaft with first fletching indication patterns extending along the longitudinal direction and second patterns intersecting with them, allowing users to align fletchings accurately by matching the patterns, enhancing the reproducibility of fletching positions and orientations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual mounting of fletchings is used, then ease of operation is improved, but manufacturing precision deteriorates
Solution Approach 1:
The patent applies preliminary action by pre-forming indication patterns (grooves, ridges, or visual marks) on the arrow shaft before the user mounts the fletchings. These patterns are created during manufacturing to indicate the exact mounting positions and orientations, allowing users to easily align fletchings without complex measurement tools while achieving precise positioning.
2Device complexity
If straight-line fletching indication patterns are used, then device complexity is reduced, but manufacturing precision deteriorates
Solution Approach 1:
The patent transitions from one-dimensional straight-line patterns to two-dimensional cross patterns formed by the intersection of first and second indication patterns. This dimensional enhancement allows the patterns to simultaneously indicate both the longitudinal position (front-rear orientation) and circumferential position (rotational orientation) of fletching mounting, achieving precise positioning without increasing device complexity.
Data Source
AI summary
An arrow shaft includes an arrow shaft body, a plurality of first fletching indication patterns formed with extending to the longitudinal direction of the arrow shaft body on the outer circumferential surface of the arrow shaft body and spaced apart each other in the circumferential direction of the arrow shaft body, and a plurality of second fletching indication patterns formed in a direction of intersecting with the first fletching indication patterns and spaced apart each other in the circumferential direction of the arrow shaft body. The arrow shaft provides an accurate and easy fletching thanks to fletching indication patterns formed on the outer circumferential surface of the arrow shaft body, and also provides an easy aligning of fletchings to any position of the arrow shaft body with the fletching indication patterns depending on characteristics of users.