Archery Sight Elevation Adjustment with Variable Tension
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Solution Overview
Problem
Conventional archery sight adjustment mechanisms are time-consuming and lack the ability to adjust and lock tension between the carriage and elevation bar, failing to accommodate forward and backward bow forces during firing, and do not allow for user-selectable yardage positions.
Innovation Solution
A variable tension assembly with a tension lever and cam surface, a traction wheel with a knurled surface, and a detent assembly that allows for precise adjustment and locking of the elevation carriage relative to the elevation base, enabling quick and efficient elevation adjustments and multiple selectable positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional incremental adjustment mechanisms are used, then fine tuning adjustment is possible, but adjustment time becomes excessive when more than fine tuning adjustment is required
Solution Approach 1:
The patent implements a dual-mode adjustment system where the carriage can be quickly positioned along the elevation bar using a sliding mechanism, then precisely locked into place using an incremental adjustment mechanism. This dynamic system allows the user to first make coarse adjustments rapidly and then fine-tune the position incrementally, resolving the contradiction between adjustment speed and precision.
Solution Approach 2:
The adjustment process is divided into two distinct phases: a quick-coarse adjustment phase using the sliding mechanism, and a precise-fine-tuning phase using the incremental adjustment mechanism. This segmentation allows each mechanism to optimize for its specific function, with the sliding mechanism providing rapid repositioning and the incremental mechanism providing precise final positioning.
2Ease of operation
If conventional adjustment mechanisms are used, then basic sight adjustment is possible, but the ability to adjust and lock tension between carriage and elevation bar is lacking
Solution Approach 1:
The patent incorporates a tension adjustment mechanism that allows the user to modify the tension parameter between the carriage and the elevation bar. This tension control system enables the carriage to accommodate forward and backward bow forces during the firing sequence by adjusting the friction or mechanical tension, ensuring reliable positioning while maintaining ease of operation.
3Adaptability or versatility
If conventional adjustment mechanisms are used, then basic elevation adjustment is possible, but user-selectable yardage positions cannot be adjusted and set
Solution Approach 1:
The patent incorporates a detent mechanism with multiple pre-set positions along the elevation bar, each corresponding to a specific yardage distance. The user can quickly engage the carriage with the desired detent position for the required shooting distance, eliminating the need for complex calculations or adjustments during competition. This preliminary preparation of fixed positions provides adaptability without significantly increasing device 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 provides quick and precise elevation adjustments, improved tension control, and user-selectable yardage positions, enhancing accuracy and usability during archery competitions by allowing for efficient adjustment and locking of the sight's position.
Implementation Method 1
A yoke is connected with the elevation assembly and the cam surface engages the yoke. Rotation of the tension lever in opposite directions displaces the yoke to increase and decrease the tension applied to the elevation assembly.
Implementation Method 2
The traction wheel has a knurled surface and the rail is formed of a synthetic plastic material which is imprinted by the tension wheel surface when the tension wheel is pressed against a surface of the rail by the tension assembly.
Implementation Method 3
The detent assembly includes at least one detent adjustably connected with the base and at least one housing adjustably connected with the carriage. The base includes side walls each of which contain a longitudinal slot in the upper portion thereof. The detents are arranged in the slots for sliding movement along the base.
Data Source
AI summary
An adjustable mechanism for an archery sight is characterized by a unique elevation and tension adjustment assemblies which allow a user to quickly and easily set the sight for optimum performance. The mechanism includes an elevation base having an elevation rail and carriage assembly connected therewith for sliding movement along the base in a first direction. A windage carriage is connected with the elevation carriage for movement in a second direction, and a sight is connected with the windage carriage. A tension assembly including a unique traction wheel, yoke and cam mechanism is provided for adjusting the tension between the rail and the base, and an adjustable detent assembly is provided to stop movement of the elevation rail and carriage in selected elevation locations relative to the base.