Pickup Truck Hoist With Nested Pivotable Frames
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Solution Overview
Problem
There is a need for a safe, reliable, and compact hoisting device for pickup trucks and flatbed trucks to efficiently load and unload heavy or unwieldy objects without excessive space usage, ensuring operational safety and robustness.
Innovation Solution
A hydraulic lifting apparatus with pivotable frames and extendable beams, secured to the truck bed using stake assemblies and support rails, which allows for a wide range of motion and includes a locking safety mechanism for secure operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the hoist is designed with extended beams and pivotable frames to maximize lifting range, then the lifting capacity and reach are improved, but the device occupies excessive space when not in use
Solution Approach 1:
The hoist employs pivotable frames and extendable beams that can dynamically change position and configuration. The first pivotable frame rotates about a first axis, and the second pivotable frame rotates about a second axis, allowing the structure to transition between extended working position and compact stored position, thus achieving both maximum lifting range and minimal space occupation when not in use
Solution Approach 2:
The second pivotable frame is positioned within the first pivotable frame, creating a nested configuration when not in use. This nesting arrangement allows the extendable beams and frames to be compactly stored while maintaining full extension capability when needed for lifting operations
2Reliability
If the hoist uses robust materials and excessive margins of material robustness to ensure safety and reliability, then the safety and reliability are improved, but the device complexity and weight increase
Solution Approach 1:
The hoist structure is divided into multiple segmented components including first and second pivotable frames, extendable beams, and stake assemblies. This segmentation allows each component to be optimized for its specific function while maintaining overall reliability, and simplifies the complexity by breaking down the robust structure into manageable, standardized modules
Solution Approach 2:
The pivotable frames and extendable beams serve multiple functions: they provide structural support, enable lifting motion, and can be positioned in various configurations for different loading scenarios. This multi-functionality reduces the need for separate specialized components, thereby reducing overall device complexity while maintaining reliability
3Volume of moving object
If the hoist is designed to be compact when not in use to allow direct load access, then the space efficiency is improved, but the mechanism for achieving compactness increases device complexity
Solution Approach 1:
The hoist utilizes dynamic pivot mechanisms that allow the frames to rotate and the beams to extend or retract on demand. The first pivotable frame rotates about a first axis and the second pivotable frame rotates about a second axis, enabling the structure to automatically transition between compact and extended configurations without complex locking or securing mechanisms
Solution Approach 2:
The gravity-assisted pivot mechanism allows the hoist to automatically return to its compact position when not in use, without requiring additional actuators or complex control systems. The extendable beams and frames self-adjust to their stored configuration, reducing the need for auxiliary compacting mechanisms
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 apparatus provides safe and reliable lifting and positioning of heavy loads, maximizing vertical lifting range and reach, while compactly storing when not in use, ensuring direct load access and protecting the vehicle in case of accidents.
Implementation Method 1
A hydraulic lifting apparatus with pivotable frames and extendable beams
Data Source
AI summary
The invention is an apparatus and method for lifting objects onto the bed of a pickup truck. The device includes a rack assembly, a swing arm assembly, and at least one hydraulic arm. The invention can be optimized and adapted to fit on a standard pickup truck or a flatbed truck.