Archery Sight Transmission Mechanism for Tape-Free Trajectory Calibration
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Solution Overview
Problem
Existing elevation adjustable archery sights require multiple interchangeable sight tapes, which are cumbersome to switch and often do not perfectly match the arrow's trajectory due to variables like draw weight, arrow weight, and environmental conditions, and electronic devices are prohibited in many competitions.
Innovation Solution
An adjustable transmission mechanism that allows a single target distance scale to be used across various arrow trajectories by calibrating the sight frame and target distance indication frame, eliminating the need for physical sight tape changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple interchangeable sight tapes are used to match different arrow trajectories, then the accuracy of distance measurement is improved, but the device complexity and ease of operation deteriorate due to the need to switch between multiple tapes
Solution Approach 1:
The patent applies universality by designing a single sight tape that can serve multiple functions across different arrow trajectories. The sight tape includes multiple trajectory profiles (e.g., high trajectory, low trajectory, flat trajectory) that can be selected and used with a single tape instead of requiring multiple separate tapes for each trajectory type.
Solution Approach 2:
The patent applies dynamics by making the sight tape adjustable and reconfigurable. The trajectory profile can be dynamically changed by the archer through simple adjustments (such as moving a slider or adjusting a mechanism) to match different arrow trajectories, allowing the same physical tape to adapt to varying conditions without replacement.
2Adaptability or versatility
If multiple interchangeable sight tapes are used for different trajectories, then adaptability to various conditions is improved, but ease of operation worsens due to time-consuming tape selection and switching
Solution Approach 1:
The sight tape incorporates dynamic adjustment mechanisms that allow the archer to switch between different trajectory profiles quickly during competition or hunting. Instead of physically replacing the entire sight tape, the archer can adjust sliders, move components, or reposition elements on the same tape to match the required trajectory, dramatically reducing the time required to adapt to changing conditions.
Solution Approach 2:
The sight tape is pre-configured with multiple trajectory profiles already marked or built into its structure. This preliminary preparation of multiple trajectories on a single tape allows the archer to simply select and activate the appropriate profile rather than performing the complex task of selecting and attaching the correct tape from a collection of specialized tapes.
3Ease of operation
If a single sight tape is used for various trajectories, then ease of operation is improved, but measurement precision deteriorates without adjustable transmission mechanism
Solution Approach 1:
The patent introduces an adjustable transmission mechanism as an intermediary between the single sight tape and the bow sight. This mechanism includes components such as gears, pulleys, or linkages that can adjust the position or orientation of the sight tape relative to the bow, enabling precise matching of the single tape's trajectory profile to the actual arrow trajectory through mechanical adjustment.
Solution Approach 2:
The adjustable transmission mechanism allows for changing physical parameters of the sight tape system, such as its position, angle, or scale, to match different arrow trajectories. By adjusting these parameters mechanically, the system maintains measurement precision across various trajectories while continuing to use a single sight tape.
Data Source
AI summary
One embodiment of an improved elevation adjustable sight for archery bows includes an adjustable transmission mechanism to control the movement of a target distance indication frame relative to the movement of a sight frame. This mechanism eliminates the need for interchangeable sight tapes and allows the sight to be calibrated to any arrow trajectory within a predetermined range. The calibration process involves zeroing the sight at a short distance and profiling it at a longer distance, both through simple adjustments. The invention offers several advantages over traditional sight tapes and provides a user-friendly and versatile sighting system for archers.