Bow Sight Tube Link Arm Mechanism for Target Obstruction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing archery bow sights with peep sights mounted on the bowstring obstruct the target area and require adjustments that compromise repeatability, making them less accurate and inconvenient.
Innovation Solution
A bow sight with a sight tube fixed to a pivotable link arm between rotatable members mounted on the bow riser, allowing simultaneous adjustment of inclination and height without obstructing the target, and incorporating a fiber optic sight point and dial pointer for range indication, adjustable for individual draw lengths and optimized for twilight conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a peep sight is mounted on the bowstring, then the archer can aim at the target, but the peep sight obstructs the target area and compromises repeatability during range adjustments
Solution Approach 1:
The invention extracts the peep sight from the bowstring and relocates it to the bow riser. The sight tube is mounted to the bow riser via a link arm mechanism, completely removing the sight element from the string. This eliminates the obstruction problem while maintaining aiming capability through the relocated sight tube.
Solution Approach 2:
The invention introduces a link arm mechanism as an intermediary between the sight tube and the bow riser. This link arm with rotatable members and synchronized rotation allows the sight tube to adjust position and inclination without requiring string modification, providing a mediating structure that enables range adjustment while maintaining repeatability.
2Adaptability or versatility
If the peep is fixed to the string, then the archer can adjust range, but the archer must modify the orientation of the bow which compromises repeatability
Solution Approach 1:
The invention makes the sight tube dynamic through the link arm mechanism with rotatable members. The sight tube can rotate and adjust its inclination angle through synchronized rotation of the link arm, allowing range adjustment without fixed orientation changes to the bow itself. This dynamic adjustment maintains repeatability while providing adaptability.
Solution Approach 2:
The invention changes the parameters of the sight tube position and inclination angle through the link arm mechanism. By rotating the link arm synchronously, both the vertical position and inclination angle of the sight tube are adjusted simultaneously, providing range adaptation while maintaining consistent bow orientation for repeatability.
3Object-affected harmful factors
If the sight tube is mounted entirely to the bow riser, then target obstruction is eliminated, but the mechanism for simultaneous inclination and height adjustment becomes complex
Solution Approach 1:
The invention segments the sight assembly into multiple components: the sight tube, the link arm, rotatable members, and synchronization mechanism. This segmentation allows each component to perform a specific function - the link arm provides rotation, the rotatable members enable inclined adjustment, and the synchronization mechanism coordinates movement. This modular segmentation manages complexity while achieving the dual adjustment capability.
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
Enables accurate and repeatable target alignment without obstructing the target, accommodating different draw lengths, and providing effective visibility in twilight conditions, enhancing the archer's ability to aim precisely.
Implementation Method 1
The sight tube may be provided with a fiber optic sight point
Data Source
AI summary
An archery bow sight has a sight tube which is fixed to a link arm which extends between two rotatable members mounted to a frame which is connected to the riser of a bow. The arm is pinned to the rear rotatable member at a radius which is less than the radius at which it is pinned to the front rotatable member. The rotation of the rotatable members is synchronized by a connector such as an intermediate gear, a timing belt, a rigid link, or a linked chain. By rotation of a range adjustment knob, the sight tube is caused to change simultaneously in inclination and in height in such a way that the archer may continue to view the target through the sight tube. The sight tube has a fiber optic sight point. The relationship between the rotating members and the link arm is adjustable for draw length.