Fire Hose Pack Roller with Tire-Braced Stand
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Solution Overview
Problem
Fire hoses on fire trucks require efficient packing and unpacking systems that can handle various diameters and lengths without damage, ensuring quick access and re-packaging without water or air residual, and must be compact for storage, with no need for a power supply.
Innovation Solution
A portable fire hose pack roller that folds into a compact configuration, using a stand under the fire truck tire for secure use, with adjustable pegs to accommodate different hose lengths and diameters, and rollers to expel water and air as the hose is rolled, allowing for easy formation of Gansner packs for storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fire hose packing system is designed to handle multiple lengths and diameters of hoses, then the adaptability and versatility improve, but the device complexity increases
Solution Approach 1:
The packing device is designed with universal components that can accommodate multiple hose lengths and diameters. The frame structure allows adjustment of roller positions and spacing, enabling the same device to handle various hose configurations without requiring multiple specialized tools, thus achieving multi-functionality while controlling complexity.
Solution Approach 2:
The device incorporates adjustable and movable components such as positionable rollers and adjustable frame sections that can be dynamically reconfigured for different hose sizes and lengths. This dynamic adaptability allows the packing system to respond to varying hose specifications without increasing inherent device complexity.
2Volume of moving object
If the packing device is designed to be portable and compact for storage, then the ease of storage improves, but the functionality and handling capability may be reduced
Solution Approach 1:
The packing device is divided into separable components including the frame, rollers, and support structures that can be disassembled or folded into a compact configuration for storage. This segmentation allows the device to occupy minimal space when not in use while maintaining full functionality when deployed for hose packing operations.
Solution Approach 2:
The device employs a nested or folded structure where components such as rollers and support arms can be collapsed or nested within the frame structure, reducing the overall volume for storage and transport while preserving the operational dimensions when the device is set up for hose packing.
3Productivity
If the hose is packed tightly to remove water and air residual, then the productivity and space utilization improve, but the risk of hose damage during packing increases
Solution Approach 1:
The device uses flexible rollers and wrapping mechanisms that can adapt to the hose's curvature and tension requirements. These flexible components apply gradual, distributed pressure during the packing process, enabling tight packing to remove water and air residuals while avoiding concentrated forces that could damage the hose structure.
Solution Approach 2:
The packing device incorporates cushioning elements and controlled tensioning mechanisms that prevent excessive force application during the packing process. By designing the system to distribute and limit forces beforehand, the device achieves efficient tight packing for productivity while protecting the hose from damage through controlled, gradual compression rather than sudden or excessive forces.
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 quick and damage-free packing and unpacking of fire hoses, accommodating multiple lengths and diameters, and allows for rapid recharging with no external power, ensuring hoses are ready for use while maintaining compact storage.
Implementation Method 1
The device rolls the hose into configurations that make it easy to form a Gansner pack for storage... includes means to squeeze water and air from the hose as it is rolled to be folded into a pack
Data Source
AI summary
The fire hose pack roller includes a first embodiment where the device is held in place by a bracket positioned under a vehicle's tire and the weight of the vehicle secures the device for use or in a second embodiment where the device is removably mounted to the vehicle. The hose pack roller device includes a pair of collapsible arms that are unfolded and the fire hose is would around pegs mounted on the arms. The device further includes a set of rollers that squeezes air and water from the hose as it is wound. Once wound the hose is easily folded into a Gansner type pack for storage of the hose. The arms of the device may be folded closed such that the device forms a compact unit for storage. No external power supply is required.