Adjustable Fertilizer Skimmer Fixation via Wedge Mechanism
Solution Overview
Problem
Existing devices for adjusting fertilizer skimmers on plows are either uncomfortable and expensive or complex and heavy, failing to provide a cost-effective solution for easy depth and angular position adjustments without affecting each other.
Innovation Solution
A device with a form-fitting fixation in the longitudinal direction of the stick allows for independent adjustment of working depth and angular position, using a wedge that can be easily changed in position without affecting the depth setting, and is held in place by a linch pin or spring-loaded pin, enabling simple and cost-effective adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a frictional fixation device is used for adjustable attachment of fertilizer depositors or skimmers, then the device is simple in construction, but the operation becomes uncomfortable and inconvenient
Solution Approach 1:
The patent implements dynamic adjustability by allowing the fertilizer depositor or skimmer to be positioned at multiple discrete angular positions (e.g., 0°, 10°, 20°, 30°) along the guide pocket, enabling the operator to optimize the throwing angle based on varying soil conditions and plowing speeds while maintaining a simple friction-based fixation mechanism without complex central adjustment systems
2Ease of operation
If a central adjustment device is used for angular position of all fertilizer depositors and skimmers, then operating comfort is high, but the device becomes very expensive and noticeably increases plow weight
Solution Approach 1:
The patent divides the adjustment function into independent individual adjustments for each fertilizer depositor or skimmer along the guide pocket, eliminating the need for a heavy central adjustment mechanism that would require complex linkages and actuators to move multiple components simultaneously, thereby reducing overall plow weight while maintaining operational ease
3Device complexity
If individual angular position adjustment is implemented for each fertilizer depositor or skimmer, then the device remains relatively simple, but the adjustment mechanism becomes complex and expensive
Solution Approach 1:
The patent implements a universal adjustment mechanism where a single guide pocket with multiple positioning locations can accommodate different types of fertilizer depositors or skimmers (such as EutOpal and VariOpal models) and adjust their angular positions, creating a multi-functional system that reduces the need for multiple specialized adjustment devices and lowers manufacturing costs
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 easy and cost-effective adjustment of fertilizer skimmers' working depth and angular position without increasing the plow's weight, allowing for precise control of soil placement with minimal effort and reduced complexity.
Implementation Method 1
the angular position can be changed with the wedge without changing the working depth setting
Implementation Method 2
the wedge is held in place by a linch pin or spring-loaded pin
Data Source
Figure 1
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AI summary
The device has a body (2) comprising a guide pocket (6) in which an arm (5) is engaged. The body is fixable with the arm in a form-fit manner in a longitudinal direction (16) of the arm by an adjusting device (7). A wedge (13) is positioned between an inner wall of the pocket and the arm. An angular position of the body is changed such that the wedge is positioned between another inner wall of the pocket and the arm. The wedge is pluggable between each inner wall of the pocket and the arm in a working direction.