Angled Cutting Blades for Secure Root Extraction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing tools for uprooting devices and golf green repair tools face challenges such as insecure root extraction and repeated manipulations, which can lead to damage to the grass instead of repairing divots effectively.
Innovation Solution
The tool features cutting blades angled inwardly from their proximal to distal ends, allowing for a combined inward and upward moving action during rotation, facilitating secure root extraction and effective divot repair by guiding the tool automatically during turning and providing an uplifting action for grass roots.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional uprooting devices with separate cutting blades are used, then root cutting is achieved, but secure pull-out of the root from the formed hole is problematic
Solution Approach 1:
The patent combines the cutting function and the lifting function into a single integrated tool head. The cutting blades and lifting blades are arranged in the same engagement portion, allowing both cutting and lifting actions to be performed simultaneously during a single rotational movement, eliminating the need for separate operations and ensuring secure root extraction.
Solution Approach 2:
The tool employs rotational movement to dynamically perform multiple functions. By rotating the engagement portion, the cutting blades first cut the root, then the same rotational motion activates the lifting blades to pull the root upward, creating a dynamic, continuous action that improves both reliability and ease of operation.
2Reliability
If golf green repair tools require repeated manipulations around a divot, then complete repair is achieved, but the risk of erroneous manipulation damaging the grass increases
Solution Approach 1:
The cutting blades perform the preliminary action of cutting the grass roots around the divot before the lifting action occurs. This preliminary cutting separates the divot grass from the surrounding healthy grass, creating a clear boundary that prevents erroneous manipulation and subsequent damage to healthy grass during the lifting phase.
Solution Approach 2:
The patent merges cutting and lifting operations into a single integrated action performed by the same tool head during one rotational movement. This combination eliminates the need for repeated manipulations, as both functions are accomplished simultaneously, thereby reducing the risk of damaging healthy grass through excessive handling.
3Reliability
If cutting blades are positioned with front edge farther from axis than rear edge, then cutting action is achieved, but inward moving action to influenced material is insufficient
Solution Approach 1:
The cutting blades are designed with asymmetric geometry where the front edge is positioned farther from the axis of rotation than the rear edge. This asymmetric positioning creates an angular orientation that generates both the necessary cutting action and an inward moving action on the influenced material, achieving dual functionality through geometric design rather than complex mechanical mechanisms.
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
This design ensures secure extraction of roots and efficient repair of divots by automatically guiding the tool inward and upward, reducing the risk of grass damage and allowing for quick restoration of the golf green.
Implementation Method 1
rotating of an engagement portion which is brought down into the ground results in, on the one hand an inward moving action to the influenced material towards a centre of rotation, on the other hand an upwardly moving action of the material towards the ground surface
Data Source
Figure 1a~2c
Figure 3a~3c
AI summary
Tool (1) for engagement in the ground including a holding portion (9) for turning of the tool around an axis of rotation (3), wherein an engagement portion (2) has a plurality of cutting blades (4) extending in directions from the holding portion (9) and being distributed around the axis of rotation (3) for pressing down into and engagement with the ground, said cutting blades each having a proximal end (5) and a distal free end (6). The cutting blades (4) have a respective front edge (7), for cutting action against the ground and a respective rear edge (8), wherein points on the front edges (7) are positioned at a greater distance from the axis of rotation (3) than points on the rear edges (8), and the cutting blades (4) are angled such that a distal portion of each rear edge is positioned in front of, as seen in the turning direction (v), and essentially at the same distance from the axis of rotation (3) as a proximal portion thereof.