Self-Loading Dolly Angled Tire Bars for Tight Space Maneuverability
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Solution Overview
Problem
Existing dollies are either inadequately designed, overly complex, or prohibitively expensive for lifting and moving heavy objects, and they struggle with maneuverability in tight spaces, such as close quarters.
Innovation Solution
A self-loading dolly with five assembled components: a pair of tire bars, a lift bar, and a pair of outside wheel assemblies, which allows for safe lifting and movement of objects up to 20,000 pounds by angling the tire bars inward and using hydraulic jacks to shift the weight onto outside wheels, providing flexibility and clearance in tight spaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If commercially available dollies are used for lifting and moving heavy objects, then they can move objects, but they are either inadequately designed, overly complex, or prohibitively expensive
Solution Approach 1:
The dolly is divided into five separate components: a pair of tire bars, a lift bar, and a pair of outside wheel assemblies. These components can be assembled and disassembled as needed, reducing overall system complexity while maintaining heavy lifting capability up to 20,000 pounds.
2Ease of operation
If traditional dollies are used in close quarters, then they can move vehicles, but they lack maneuverability in tight spaces
Solution Approach 1:
The tire bars are designed to be angled inward when the vehicle is lifted, dynamically adjusting the wheel positions to provide clearance in tight spaces. This dynamic reconfiguration enables maneuverability in close quarters while maintaining structural integrity for heavy loads.
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 safe and efficient lifting and movement of heavy objects, including vehicles and equipment, in various applications, including tight spaces, with improved weight distribution and maneuverability, addressing the limitations of existing dollies.
Implementation Method 1
using hydraulic jacks to shift the weight onto outside wheels
Data Source
AI summary
A self-loading dolly apparatus. Each of a pair of support bars has a saddle bracket and an inside wheel assembly rigidly affixed with the support bar and offset from the vertical axis. A lift bar is secured to the saddle brackets, then raised so that an outside pair of wheel assemblies can be positioned adjacent the respective saddle bracket. The outside wheel assemblies are secured when the lift bar is raised, whereupon the inside wheel assemblies and the saddle brackets realign with the vertical axis and the support bars are angled upward.