Adjustable Scrapers for Refuse Vehicle Packing Assembly
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Solution Overview
Problem
Existing refuse vehicles face challenges in preventing refuse from falling behind the packing assembly during the ejection procedure, particularly due to varying compartment dimensions.
Innovation Solution
The refuse vehicle is equipped with a packing assembly that includes a pack panel, a packing actuator, and a scraper system. The scraper system consists of multiple scrapers that are selectively repositionable relative to the pack panel, allowing them to engage with the sidewalls and bottom wall of the refuse compartment, thereby inhibiting refuse from falling behind the packing assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the packing assembly is fixed in design, then manufacturing cost is reduced, but it cannot adapt to varying compartment dimensions across different vehicle models
Solution Approach 1:
The packing assembly is divided into modular components including the pack panel, multiple scrapers (first scraper for sidewall, second scraper for bottom wall), and follower plate, each independently positionable to adapt to different compartment dimensions while maintaining overall system functionality
Solution Approach 2:
The scrapers and follower plate are designed with adjustable positioning mechanisms that allow dynamic reconfiguration of the packing assembly to match varying compartment dimensions across different refuse vehicle models, enabling a single design to serve multiple applications
2Reliability
If scrapers are fixed to the pack panel, then assembly is simplified, but refuse can still fall behind the packing assembly during ejection
Solution Approach 1:
The scrapers are designed with adjustable positioning systems that allow them to be repositioned relative to the pack panel, enabling dynamic adaptation to different compartment geometries while maintaining reliable engagement with sidewalls and bottom wall to prevent refuse from falling behind during ejection
Solution Approach 2:
The follower plate acts as an intermediary component between the pack panel and the scrapers, providing a mechanism for coordinated positioning and adjustment of multiple scrapers to optimize their engagement with the compartment interior surfaces
3Reliability
If multiple scrapers are added to engage with all interior surfaces, then refuse containment is improved, but device complexity and cost increase
Solution Approach 1:
The scraping function is segmented into multiple specialized scrapers: a first scraper for sidewall engagement, a second scraper for bottom wall engagement, and a follower plate, with each component targeted to specific interior surfaces to provide comprehensive refuse containment
Solution Approach 2:
The scrapers are designed with universal adjustability features that allow a single scraper design to effectively engage with different interior surfaces (sidewalls and bottom wall) across various vehicle models, reducing the need for model-specific components while maintaining comprehensive coverage
Data Source
AI summary
A refuse vehicle includes a chassis, a refuse compartment supported by the chassis and defined by at least one of a first sidewall, a second sidewall opposite the first sidewall, or a bottom wall, and a packing assembly. The packing assembly includes a pack panel, a packing actuator coupled to the pack panel, wherein the packing actuator is configured to selectively move the pack panel between a retracted position and an extended position, and a scraper coupled with the pack panel along at least a portion of a perimeter of the pack panel and configured to be selectively repositionable relative to the pack panel, the scraper configured to engage with at least one of the first sidewall, the second sidewall, or the bottom wall.