Bowstring Dampener Piston Gripper Vibration Absorption
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Solution Overview
Problem
Existing archery bow and bowstring dampening devices fail to effectively eliminate or significantly reduce the noise produced by the bowstring and bow limb vibrations after a shot, as they often result in additional noise upon impact with a relatively immobile surface or only slow down resonant movements without complete noise elimination.
Innovation Solution
A bowstring and bow limb dampener comprising a sleeve and piston design, where the sleeve is configured with V-shaped or rectangular grooves and the piston has grippers that flare outwardly to trap the bowstring or bow limb, absorbing energy and reducing vibrations, with adjustable geometries to accommodate various bow sizes and types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If a bowstring dampener with a cushion member is used to absorb vibration energy, then the sound emitted by the string is reduced, but the device complexity increases
Solution Approach 1:
The dampener is divided into distinct functional components: a support arm for mounting, a cushion member for vibration absorption, and a biasing mechanism for maintaining contact pressure. This segmentation allows each component to be optimized independently while maintaining overall effectiveness.
Solution Approach 2:
The cushion member is positioned within the path of the bowstring vibration, nested between the support arm and the bowstring. The biasing mechanism is integrated into the support arm structure, creating a compact nested arrangement that reduces overall device complexity.
2Object-generated harmful factors
If a limb-mounted vibration suppressor is attached to dampen bow limb movement, then noise produced by the bow is reduced, but the device complexity increases
Solution Approach 1:
The vibration suppressor combines the damping function and mounting function into a single integrated device. The support arm with attachment device merges the structural support and vibration suppression elements, reducing the need for separate mounting hardware.
Solution Approach 2:
The biasing mechanism provides dynamic adjustment of the cushion member's contact pressure with the bow limb, allowing the device to adapt to varying vibration intensities and maintain optimal damping performance throughout the vibration cycle.
3Object-generated harmful factors
If a bowstring dampener with grippers is used to trap the bowstring, then vibration energy is absorbed more effectively, but the manufacturing precision requirements increase
Solution Approach 1:
The grippers are designed with an asymmetric geometry that naturally guides the bowstring into the trapping position. The flared outward shape creates a self-aligning mechanism that reduces sensitivity to manufacturing tolerances while maintaining effective vibration energy absorption.
Solution Approach 2:
The cushion member is pre-positioned and pre-biased to make contact with the bowstring before the full vibration energy is transferred. This beforehand cushioning allows the system to absorb vibrations progressively, reducing the precision requirements for the trapping mechanism.
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 effectively eliminates or significantly reduces the noise produced by bowstring and bow limb vibrations by trapping and absorbing energy, providing a more substantial noise reduction benefit compared to existing technologies.
Implementation Method 1
the piston has grippers that flare outwardly to trap the bowstring or bow limb, absorbing energy and reducing vibrations
Data Source
AI summary
An archery bow and bowstring dampener is disclosed. The dampener comprises at least one sleeve and at least one piston. The sleeve is formed with a first end adapted attached to a bow and a second end with at least one flared arm extending therefrom. Each sleeve is configured to matingly receive at least one piston therein. Each piston has at least one gripper extending therefrom on one end. The grippers flare outwardly from each piston and are mounted to each piston such that the grippers move inwardly when impacted by the bow limb(s) and/or bowstring and when each piston enters its sleeve, thereby grasping the bow limb(s) and/or bowstring, and outwardly when each piston exits its sleeve, thereby releasing the bow limb(s) and/or bowstring.