Deformable Jaw Hand Tool for Plant Stem Growth Control
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Solution Overview
Problem
Conventional methods for controlling plant growth, such as topping or pinching, are inefficient and undesirable for discouraging apical dominance and promoting lateral growth in plants.
Innovation Solution
A hand cropping tool that applies controlled circumferential pressure to plant stems using deformable materials to modify growth patterns, allowing for the redirection of growth from vertical to horizontal orientations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional topping or pinching methods are used to control plant growth, then apical dominance can be reduced, but the process is inefficient and causes significant disadvantages
Solution Approach 1:
The invention changes the physical state and mechanical properties of the jaw surfaces by coating them with deformable material having specific durometer ranges (40-70 Shore A). This parameter change allows the jaws to apply controlled circumferential pressure that deforms the plant stem without causing the harmful tissue damage associated with conventional cutting or pinching methods, thereby improving growth control efficiency while reducing plant damage
Solution Approach 2:
The invention applies flexible deformable material coatings on the jaw surfaces that can conform to and gently deform the plant stem. These flexible coatings replace the rigid, damaging contact of conventional tools, enabling efficient growth control through controlled deformation rather than cutting or pinching, thus resolving the contradiction between productivity and plant tissue damage
2Ease of operation
If circumferential pressure is applied to plant stem using deformable materials, then growth redirection is achieved, but tool complexity increases
Solution Approach 1:
The invention segments the jaw surfaces by coating only the contact surfaces with deformable material while maintaining the structural integrity of the separate arm members. This segmentation allows the tool to gain the beneficial growth redirection control properties of soft materials without requiring the entire tool structure to be complex, as the deformable coatings are applied only where needed on the jaw surfaces
Solution Approach 2:
The deformable material acts as an intermediary between the rigid jaw structure and the plant stem. This intermediary layer provides the necessary compliance and controlled deformation capability for easy growth redirection, while the rigid jaw structure maintains structural simplicity. The intermediary coating enables the complex function of controlled stem deformation without requiring complex tool mechanics
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 tool effectively restricts upward growth and encourages lateral growth, increasing flowering by redirecting nutrients and altering the plant's internal structure, resulting in a bushier plant morphology.
Implementation Method 1
The first jaw portion includes a first curved surface that is at least partially covered by a first deformable material and the second jaw portion comprising a second curved surface that is at least partially covered by a second deformable material
Data Source
AI summary
A hand cropping tool includes arm members that have handle portions and jaw portions. The jaw portions include curved surfaces that are at least partially covered by deformable materials. The hand cropping tool is configured to be moved from an open configuration in which the first and second jaw members are spaced apart from one another and a closed configuration in which at least a portion of the first jaw member is in contact with at least a portion of the second jaw member. In the closed configuration, the first and second deformable materials collectively define at least one first plant-receiving area.