Pallet Jack Cleaning Apparatus with Under-Side Spray Envelope
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Solution Overview
Problem
The underside of pallet jacks provides harborage points for bacteria, making them difficult to clean and sanitize effectively, especially in food processing facilities where contamination control is critical, as manual methods are cumbersome and ineffective.
Innovation Solution
An automated washing apparatus with a spray cabinet system that delivers cleaning liquids under pressure to all surfaces of the pallet jack, including the underside, using a programmable logic controller to ensure thorough sanitation and containment of the cleaning solution within the cabinet.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If manual wipe down method is used to clean pallet jacks, then the cleaning process is simple and requires minimal equipment, but the cleaning effectiveness is poor especially for the underside of the pallet jack
Solution Approach 1:
The patent employs a hydraulic spray system that delivers cleaning solution under pressure through nozzles positioned to reach all surfaces of the pallet jack including the underside. The pressurized spray effectively removes contaminants from difficult-to-reach areas, resolving the contradiction between simple manual methods and effective cleaning by introducing hydraulic power to achieve thorough sanitation without complex manual procedures
Solution Approach 2:
The invention introduces a dimensional approach by positioning spray nozzles above and below the pallet jack, creating a three-dimensional cleaning envelope. This multi-directional spray configuration ensures complete coverage of all surfaces including the previously inaccessible underside, transforming the two-dimensional manual wiping process into a comprehensive three-dimensional sanitization system
2Reliability
If automated spray system is used to clean all surfaces of pallet jack, then cleaning effectiveness is improved, but device complexity and cost increase
Solution Approach 1:
The spray cabinet is designed as a universal cleaning station that can sanitize various types of material handling equipment including pallet jacks, forklifts, and other forked devices. By creating a multi-functional apparatus that handles different equipment types with a single system, the patent reduces overall facility complexity while maintaining high cleaning effectiveness across all equipment
Solution Approach 2:
The system incorporates automatic spray activation and timing mechanisms that reduce the need for complex manual operation. The cabinet automatically controls spray duration and intensity, and the drain system self-manages waste liquid removal, simplifying the operational complexity while maintaining thorough cleaning performance
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
The system effectively sanitizes the pallet jack surfaces, reducing bacterial contamination and meeting sanitary design requirements for food manufacturing facilities by ensuring all surfaces are cleaned efficiently and hygienically.
Implementation Method 1
delivering cleaning liquids or fluids, such as water, liquid chemical detergents and sanitizing agents, under pressure to the surfaces of a pallet jack
Implementation Method 2
spraying or applying the fluids to all of the surfaces of the pallet jack
Data Source
AI summary
A pallet jack washing apparatus for washing the forks of a pallet jack comprising an enclosure having an entrance end and one or more openings in the entrance end with a substantially open track for carrying the wheels of the pallet jack forks traversing within the enclosure from said opening. A spray apparatus surrounds the track, said spray apparatus having a plurality of spray heads for directing washing fluids towards the track from substantially all angles. The spray apparatus may be affixed within the enclosure or may be configured to travel lengthwise axially along the track to apply washing fluids to the forks, wheel mounts and front wheels of a pallet jack. The spray apparatus is connected through a cleaning fluid circuit to one or more sources of washing fluid. The method of using a pallet jack washing apparatus to wash, rinse and sanitize a pallet jack.