Adjustable Archery Bow Vibration Damping with Elastomer Washers
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Solution Overview
Problem
Existing mechanical vibration limiting and absorbing devices for archery bows are of fixed characteristics, requiring multiple devices to adjust vibration levels, which is inconvenient and costly.
Innovation Solution
An adjustable mechanical vibration limiting and absorbing device with a hollow housing, elastomer washers, a fastener, lock nut, and weight system that allows for varying vibration absorption by compressing and expanding elastomeric washers, enabling adjustment of tension and stiffness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If fixed characteristic vibration limiting devices are used, then vibration absorption is provided, but adjustability for different weight configurations is lost
Solution Approach 1:
The device transitions from a fixed structure to a dynamic, adjustable system by incorporating multiple elastomeric washers of different stiffnesses that can be selectively positioned. The adjustability mechanism allows users to change the vibration absorption characteristics by reconfiguring the washer arrangement, enabling adaptation to different weight configurations while maintaining a single device structure.
Solution Approach 2:
The invention changes the physical parameters of the vibration absorption system by using elastomeric washers with varying degrees of stiffness and compressibility. By adjusting which washers are engaged and their compression state through the adjustability mechanism, the effective vibration absorption parameters can be modified to match different weight configurations without changing the fundamental device structure.
2Adaptability or versatility
If multiple fixed vibration limiting devices are owned for different weight configurations, then adjustability is achieved, but cost and device complexity increase
Solution Approach 1:
The device achieves multi-functionality by incorporating a range of elastomeric washers with different stiffness characteristics within a single housing. The adjustability mechanism enables one device to perform the functions of multiple fixed devices, allowing users to select appropriate vibration absorption characteristics for different weight configurations without needing to own or switch between separate devices.
Solution Approach 2:
The invention nests multiple elastomeric washers of different sizes and stiffnesses within a single housing structure. These washers are arranged concentrically or in nested configurations, allowing smaller, less stiff washers to be contained within or alongside larger, stiffer washers. This nesting approach enables a compact single device to provide the functionality of multiple separate vibration limiting devices.
3Adaptability or versatility
If adjustable vibration absorption is implemented, then adaptability to different weight configurations is achieved, but device size and profile may increase
Solution Approach 1:
The device uses a nested arrangement where multiple elastomeric washers are positioned concentrically within the housing, with smaller washers fitting within the inner diameter of larger washers. This nesting strategy maximizes the range of vibration absorption characteristics within a compact radial footprint, minimizing the increase in device volume while providing adjustability.
Solution Approach 2:
The invention utilizes the axial dimension within the housing to accommodate multiple washers of different thicknesses and stiffnesses. By arranging washers in series along the axial direction and using the adjustability mechanism to selectively engage different washers, the device provides variable vibration absorption without requiring increased radial or lateral dimensions, thus maintaining a compact profile.
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 device provides a compact, cost-effective solution for adjustable vibration reduction, allowing users to tailor vibration absorption to different weight configurations, enhancing usability and performance.
Implementation Method 1
first and second groups of elastomeric washers provided in said hollow housing
Implementation Method 2
mechanical vibration limiting and absorbing apparatus
Data Source
AI summary
An adjustable mechanical vibration limiting and absorbing device for an archery bow including a hollow housing and two groups of elastomer washers provided in the hollow housing with a means for preventing the first group from advancing out of the hollow housing and separating the first group from the second group. In addition, a fastener extends through the center of the first and second groups of elastomer washers and a lock nut and weight are provided on the projecting end of the fastener.