Bow Press Pivoting Limb Support for Secure Compression
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Solution Overview
Problem
Existing bow presses require significant force to flex archery bow limbs, often leading to inefficient operation, potential damage, and safety concerns due to vertical forces that can cause the bow to unintentionally release during compression.
Innovation Solution
A bow press design featuring a base frame with support assemblies that include a first limb support and a second limb support pivotally mounted to the first, with a contact member that contacts the bow limb at a location proximal to the bend point, allowing for controlled compression and maintaining contact as the bow is flexed, utilizing a telescoping mechanism and actuator for adjustable force application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If compression force is applied at only the ends of the bow limbs, then the bow can be compressed with simpler structure, but vertical forces are generated that may cause the bow to unintentionally release from the press
Solution Approach 1:
The compression force application is segmented into multiple contact points: the ends of the bow limbs and an intermediate point on the limb. This segmentation distributes the compression force and creates opposing vertical forces that prevent the bow from releasing unintentionally, while maintaining a relatively simple press structure.
2Device complexity
If the press is located outside of the curvature of the bow limbs, then the structure is simplified, but access to the bowstring, cables and other components is impeded
Solution Approach 1:
The contact member is positioned to engage the bow limb in a location and orientation that provides access to bowstring and cable components. By strategically placing the intermediate contact point on the limb, the press allows technicians to access and service internal components while the press structure remains relatively compact and simple.
3Reliability
If multiple contact points are used to stabilize the bow, then the bow can be securely compressed without unintentional release, but the device complexity increases
Solution Approach 1:
The essential function of stabilizing the bow during compression is extracted and achieved through a minimal set of contact points: two main compression points at the limb ends and one intermediate contact point. This extraction of the core stabilization function avoids the need for complex multi-point stabilization systems while maintaining reliable bow retention.
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 design enhances safety and efficiency by maintaining the bow securely within the press, reducing the risk of accidental release and allowing for easier servicing of bowstrings and cables, while accommodating the bow's curvature changes during compression.
Implementation Method 1
a second limb support pivotally mounted to the first end portion of the first limb support and configured to contact a distal end of a bow limb of an archery bow that is mounted to the archery bow press. The second limb support pivots relative to the first limb support and the base frame to maintain contact with the outer face of the bow limb as the archery bow is compressed between the first and second support assemblies
Implementation Method 2
a contact member mounted to the second end portion of the first limb support and configured to contact the bow limb at a location spaced proximal of the distal end and proximal of a bend point in the bow limb when the bow limb is flexed
Data Source
AI summary
An archery bow press includes a base frame, and first and second support assemblies mounted to the base frame. The support assemblies each a support member mounted to the base frame, a first limb support having first and second end portions and being mounted to the support member at a location spaced between the first and second end portions, a second limb support pivotally mounted to the first end portion of the first limb support, a contact member mounted to the second end portion of the first limb support. The second limb support is configured to contact a distal end of a bow limb of an archery bow that is mounted to the archery bow press. The contact member is configured to contact the bow limb at a location spaced proximal of the distal end and proximal of a bend point in the bow limb when the bow limb is flexed.