Modular Meter End Cap With Locking Elements
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Solution Overview
Problem
Current agricultural product delivery systems require multiple meter assemblies of different sizes to achieve varying flow rates, leading to increased complexity, cost, and material waste due to the need for extensive tooling and inventory.
Innovation Solution
A modular meter assembly system that allows for tool-less assembly of meter units with interlocking features, enabling the creation of customized meter assembly lengths and flow rates without the need for tools or extensive fasteners, featuring a tubular sleeve with locking elements and a bearing end cap for structural integrity and ease of assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional meter assemblies are produced in different sizes to provide varying flow rates, then flow rate requirements are met, but tooling complexity and inventory requirements increase
Solution Approach 1:
The meter assembly is divided into multiple identical modular units that can be stacked in different quantities (1, 2, or 3 units) to achieve different flow rates. Each module contains a meter wheel, housing, and end caps, and all modules are interchangeable. This segmentation allows the system to meet varying flow rate requirements without requiring different sized assemblies, thereby reducing tooling and inventory complexity.
Solution Approach 2:
The patent creates universal meter modules that can serve multiple functions and configurations. The same module design with standardized interfaces (including the locking element mechanism) can be used in any position and combined with other identical modules. This universality eliminates the need for size-specific tooling and simplifies inventory management while maintaining adaptability for different flow rates.
2Strength
If traditional meter assemblies use interconnected walls forming continuous housings, then structural integrity is maintained, but material consumption and manufacturing cost increase
Solution Approach 1:
The continuous housing is segmented into discrete modular units with individual housings for each meter wheel. Each housing is a complete structural unit that can be manufactured independently using less material than a large continuous housing. The modular design maintains structural integrity through standardized interfaces and locking mechanisms while reducing overall material consumption.
Solution Approach 2:
The meter wheel is nested within the housing, and multiple such nested assemblies are stacked to form the complete meter assembly. This nesting approach allows compact arrangement and efficient material usage, as each component fits within its designated space without requiring excess material for continuous structural support across the entire assembly.
3Ease of operation
If modular meter units use tool-less assembly with interlocking features, then assembly speed and ease of operation improve, but manufacturing precision requirements increase
Solution Approach 1:
The locking element features asymmetric geometry with specific protrusions and recesses that provide directional guidance during assembly. The locking element includes a body with a protrusion that engages with a corresponding recess in the housing, and the asymmetric shape ensures proper orientation and alignment. This asymmetry enables tool-less assembly by providing mechanical guidance while maintaining sufficient manufacturing tolerances.
Solution Approach 2:
The interlocking features are designed to self-align and self-locate during assembly without requiring external tools or complex alignment procedures. The locking element's protrusion automatically engages with the housing's recess when brought together, and the asymmetric geometry provides inherent alignment guidance. This self-service mechanism simplifies assembly operations while relying on precise but achievable manufacturing tolerances for the interlocking surfaces.
Data Source
AI summary
A bearing end cap for a modular meter assembly for distributing particulate material from an applicator can include recesses that accommodate locking tabs or fingers of modular meter unit housings and protrusions that lock a meter tube against rotation. In one aspect, a bearing end cap can be provided with a particular construction that cooperates with modular meter unit housings. The bearing end cap can have vertical and horizontal symmetry and cutouts near its corners. These cutouts can provide clearances to accommodate the locking tabs or fingers of modular meter unit housing end walls. Back walls of the bearing end caps can have protrusions that extend into end cutouts of a tube which defines an interior perimeter of the meter assembly.