Adjustable Crank Handle for Trailer Mat Unloading
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Solution Overview
Problem
Existing load handler systems require a tailgate to be stably secured, are not ergonomic due to fixed length handles, and necessitate repeated assembly and disassembly, limiting their usability and efficiency.
Innovation Solution
A trailer-like assistive unloading system with a rotatable element, adjustable handle, and pivot arm, allowing for ergonomic operation and modular design, reducing manual labor and assembly requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a fixed length crank handle is used, then the unloader system can rotate the roller, but the handle length is limited and requires repeated removal and repositioning
Solution Approach 1:
The handle length is made adjustable rather than fixed, allowing the user to dynamically change the handle length to suit different unloading scenarios. This eliminates the need to remove and reposition the handle repeatedly, as the handle can be extended or retracted as needed.
Solution Approach 2:
The handle length parameter can be changed during operation to optimize ergonomics for different tasks. By allowing the handle length to vary, the system adapts to different user heights, grip preferences, and unloading requirements without requiring complete handle removal.
2Productivity
If the unloader system uses a roller wheel with slip sheets, then it can deposit loads outside the truck bed, but it requires a tailgate to be stably secured and must be disassembled after each use
Solution Approach 1:
The unloader system is divided into separate modular components that can be independently attached and detached. This segmentation allows the system to be easily assembled and disassembled without complex procedures, reducing the time and effort required for setup and storage between uses.
Solution Approach 2:
The system is designed to be pre-assembled or pre-configured so that when installation is needed, it can be quickly deployed without extensive assembly. The modular design allows critical components to be ready for attachment, minimizing the preparation time before unloading operations can begin.
3Ease of operation
If the handle length is extended to improve ergonomics, then full rotational cranking is permitted, but the handle becomes heavier and harder to maneuver
Solution Approach 1:
The handle employs a telescopic or extendable mechanism that allows the user to adjust the handle length dynamically. When full rotational cranking is needed, the handle can be extended to provide sufficient leverage. When maneuvering or repositioning is required, the handle can be retracted to reduce weight and improve agility.
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 facilitates easy unloading of high mass loads with reduced manual effort and risk of injury, offering a scalable and versatile solution without expensive equipment or complex assembly.
Implementation Method 1
a mat with a spray-on low friction coating to reduce friction between the load and the trailer bed during unloading
Implementation Method 2
an adjustable handle comprised of a distal gripping portion and a proximal mounting portion, wherein the proximal mounting portion of the adjustable handle is connected to the rotatable element
Data Source
AI summary
Described is a trailer-like assistive unloading system with an adjustable handle and a rotatable element wherein rotation of the rotatable element facilitates unloading. The system includes a trailer structure supported by wheels and a rotatable element mounted on a pivot arm connected to a dispensing terminus of the trailer structure. There is a mat wound about the rotatable element and an adjustable handle which includes a distal gripping portion and a proximal mounting portion. The proximal mounting portion of the adjustable handle is connected to the rotatable element and the distal gripping portion of the adjustable handle is secured to the proximal mounting portion using a removable positioning fastener.