Bow Press Safety Latches and Adjustable Brackets
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Solution Overview
Problem
Conventional bow presses face challenges in safely compressing short limb bows, including adjustability issues, potential for limb escape during compression, and the need for frequent adjustment for each bow, leading to inefficiency and safety concerns.
Innovation Solution
The design features a bow press with an elongate beam, a screw jack, and a threaded rod with opposing threads, allowing for precise adjustment of pivot arm bracket members, along with limb safety latches and adjustable link members, enabling secure compression of short limb bows without the need for frequent adjustment. Additionally, a data table correlates bow models with preset settings for the press's components, facilitating easy setup.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional bow presses use incremental holes for adjustment, then the position of supports can be moved to achieve a fit, but the fit is not ideal and can result in damage to the bow
Solution Approach 1:
The patent replaces static incremental holes with dynamic continuous adjustment capability through sliding clamps that can be positioned at any location along the beam, allowing precise adaptation to different bow dimensions while maintaining ideal fit
Solution Approach 2:
The patent substitutes the mechanical hole-based adjustment system with a friction-based sliding clamp system that enables continuous position adjustment along the beam, achieving superior precision without damage risk
2Measurement precision
If manually adjustable sliding clamps are used, then precise positioning is achieved, but excessive effort is required to secure the bracket in place
Solution Approach 1:
The patent extracts the excessive friction requirement from the securing mechanism by introducing spring clips that mechanically retain the sliding clamps, separating the positioning function from the securing function
Solution Approach 2:
The patent introduces spring clips as intermediary retaining elements that mediate between the sliding clamp and the beam, providing secure retention without requiring excessive user effort
3Productivity
If link members are attached to the jack during compression, then the bow can be compressed, but the link members may slide off the pin causing potentially injurious condition
Solution Approach 1:
The patent applies preliminary anti-action by pre-installing spring clips on the jack pin before compression begins, preventing the link members from sliding off during the compression process
Solution Approach 2:
The patent provides beforehand cushioning through spring clips that act as safety retainers, preventing catastrophic failure if the link members were to detach during compression
4Productivity
If short limb bows are pressed in prior art bow presses, then compression can be applied, but the bow may spring out of the press creating a dangerous condition
Solution Approach 1:
The patent applies preliminary anti-action by pre-positioning limb safety latches in the ready state before compression, preventing the bow from springing out during the compression process
Solution Approach 2:
The patent converts the potential harmful spring-back force into a beneficial controlled release by using safety latches that manage the compression and release cycle, turning a dangerous condition into a safe operation
5Manufacturing precision
If frequent adjustment is made for each bow, then proper fit can be achieved, but operational efficiency is reduced
Solution Approach 1:
The patent applies preliminary action by pre-configuring the bow press with adjustable components that can be quickly positioned for different bow types, reducing the time and effort required for adjustment while maintaining fit accuracy
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 a safe and efficient method for compressing short limb bows, reducing the risk of limb escape and the need for frequent adjustment, enhancing user safety and operational efficiency by allowing for precise and secure positioning of the bow within the press.
Implementation Method 1
an elongate threaded rod mounted to the base adjacent and parallel to the elongate beam... The threaded rod is supported at each opposing end and the rod is also supported in a central housing where the rod contains no threads. The first half of the rod is threaded with right hand threads and the second half of the rod is threaded with left hand threads.
Implementation Method 2
limb safety latches... enabling secure compression of short limb bows
Implementation Method 3
a pair of pivot arms hinged to each of the pivot arm bracket members... adapted for urging the limbs toward each other to relieve tension on the bow string
Data Source
AI summary
An improved archery bow press used to safely relieve tension in the bow string of a short limbed compound archery bow. Slidable brackets are retained to a horizontal beam and retain pivot arms to the beam. Brackets slidable along each of the pivot arms may be locked in place. Each pivot arm includes a bearing member which abuts a limb of a compound bow. A jack is mounted to the beam to raise and lower link members connected to the pivot arms. The link members are adjustable in length. Markings are provided on the adjustable members so that adjustments to those elements can be made based on data in a table correlating settings for specific compound bows. Safety latches lock the bow limbs to the slidable brackets. A method for presetting the press is provided.