Stem removing tool
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Solution Overview
Problem
Existing stem removing tools lack the ability to efficiently cut and remove stems of varying widths due to fixed blade separation, which is time-consuming and inefficient for leafy vegetables and herbs.
Innovation Solution
A stem removing tool with a pair of elongated arms pivotally secured at a common pivot point, featuring parallel rotary blades with a spring mechanism to adjust the blade separation, allowing for cutting of stems of different widths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed blade separation distance is used, then the device structure is simple, but it cannot cut stems of varying widths efficiently
Solution Approach 1:
The patent applies the dynamics principle by making the blade separation distance adjustable rather than fixed. The spring mechanism allows the distance between the two rotary blades to be dynamically changed according to the width of the stem being cut, enabling the device to adapt to different cutting requirements while maintaining operational simplicity.
2Productivity
If individual leaves are cut from the stem using a knife, then precise cutting is achieved, but the process is time-consuming
Solution Approach 1:
The patent merges the cutting function into a single rotary motion operation. Instead of requiring separate cutting actions for each side of the stem, the two rotary blades work simultaneously as the stem is rolled between them, combining multiple cutting actions into one continuous motion and significantly improving productivity.
Solution Approach 2:
The rotary blades provide continuous cutting action as the stem is rolled through the device. Unlike discrete knife cuts, the rotating blades maintain constant contact with the stem throughout the rolling process, eliminating idle time between cuts and maintaining continuous useful action throughout the stem removal process.
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
Enables efficient and convenient removal of stems from vegetables and herbs by allowing adjustable blade separation, reducing waste and improving cooking efficiency.
Implementation Method 1
A spring is disposed between the second end of the arms so as to allow the blades to adjust in distance from one another
Implementation Method 2
the blades are adapted to rotate so as to cut objects, such as stems of vegetables and herbs, when rolled along the surface thereof
Data Source
AI summary
A stem removing tool for cutting the stems from vegetables, herbs, and the like. The stem removing tool includes a pair of elongated arms pivotally secured to one another at a common pivot point. Each arm includes a handle disposed on a first end thereof and a rotary blade disposed on a second end thereof, wherein the pair of blades are parallel to one another. The blades are able to rotate along a surface and over an object, such as the rib of a lettuce leaf, thereby removing the rib therefrom with a single use. A spring is secured between the pair of elongated arms on the second ends thereof so as to allow the blades to compress together when the handles are compressed together and spread apart when the handles are released from one another.