Sustained-Release Pheromone Tubes with Crossed Elastic Retention
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Solution Overview
Problem
Existing sustained-release pheromone preparations face challenges in stable installation, ease of use, and cost-effectiveness, with potential damage to plants and operational difficulties during pruning and wind exposure.
Innovation Solution
A polymer tube or rod shaped into a specific configuration with a closed space formed by bending and crossing, featuring a curvature radius of 4 to 17 mm, a linear distance of 25 to 70 mm, and a repelling force of 0.5 N or larger, allowing easy installation and stable retention on trees.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a metal wire is added to the polymer tube for stable installation, then the shape-retaining property and installation stability are improved, but the production cost, filling cost, installation time, and risk of damaging pruning blades increase
Solution Approach 1:
The invention removes the metal wire component from the sustained-release pheromone preparation structure, retaining only the polymer tube which is bent and crossed to form a closed space. This extraction eliminates the harmful effects and costs associated with metal wires while maintaining installation stability through the polymer tube's own geometric configuration
Solution Approach 2:
The polymer tube is bent into a curved configuration with specific geometric parameters (curvature radius of 4 to 17 mm, linear distance of 25 to 70 mm) to form a closed space that provides structural stability and shape retention without requiring additional metal wire support
2Stability of the object's composition
If the polymer tube is fused or adhered at the crossover point to form a closed space, then the shape stability is improved, but the installation location flexibility is reduced and the operation complexity increases
Solution Approach 1:
The invention applies partial action by maintaining a specific gap (three times the diameter of the tube or smaller) at the crossover point rather than completely fusing or adhering the tube. This gap provides just enough space for branch insertion while maintaining sufficient shape stability through the crossed configuration and elastic restoring forces of the polymer material
Solution Approach 2:
The polymer tube is segmented into two crossed portions that form a closed space without being fully joined. The segmentation creates a gap that allows easy installation on branches while the overall crossed configuration maintains shape stability and prevents falling off
3Ease of operation
If the polymer tube is configured with a gap at the crossover point for easy installation, then the installation ease is improved, but the reliability of retention under wind pressure and natural winds deteriorates
Solution Approach 1:
The invention optimizes the gap size parameter at the crossover point to be three times the diameter of the tube or smaller. This specific parameter range allows easy installation while maintaining sufficient retention reliability under wind pressure and natural winds through the elastic restoring forces of the bent polymer tube configuration
Solution Approach 2:
The specific curvature radius (4 to 17 mm) and linear distance (25 to 70 mm) parameters of the bent polymer tube create a closed space configuration that provides both installation ease through the gap and retention reliability under environmental stresses through the geometric stability and elastic properties
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 configuration ensures reliable, long-term release of pheromones without falling off due to natural winds or agricultural activities, improving installation efficiency and reducing production costs.
Implementation Method 1
a sustained-release pheromone preparation produced by twisting together two polymer tubes and then joining together both ends thereof, where a holding strength is further improved by utilizing the restoring and repelling forces of the polymer tubes
Data Source
AI summary
Provided is a sustained-release pheromone preparation that can be easily installed and stably retained in an installation location, and is comprised of at least one pheromone substance-containing polymer tube with both ends sealed or pheromone substance-containing polymer rod, wherein(a) a closed space is formed in a front view by bending in an arc and crossing the tube or rod, and the preparation is not crossed in a side view;(b) a curvature radius established is 4 to 17 mm;(c) a linear distance from a top point of an arc to a crossover point is 25 to 70 mm; and(d) a repelling force when opening the crossover point to establish a clearance of 20 mm in the front view is 0.5 N or larger.