Trailer Jacking System with Axle Bars
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Solution Overview
Problem
Existing jacking devices for trailers often require external blocks or assistance to level and jack trailers, which can be cumbersome and inconvenient, especially for self-leveling applications like campers.
Innovation Solution
A trailer jacking system comprising a pair of bars coupled between axles with u-bolts and biasing members, allowing a jack to be positioned beneath the bars to lift and level the trailer evenly without the need for external blocks, using a jack to distribute weight between axles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If external blocks or assistance are used to level and jack trailers, then the leveling function can be achieved, but the operation becomes cumbersome and inconvenient
Solution Approach 1:
The patent combines the leveling bars with the trailer axle assembly, integrating the jacking function directly into the trailer structure. The bars are positioned between the axles and work in conjunction with a single jack to achieve leveling, eliminating the need for separate external blocks and assistance devices.
Solution Approach 2:
The trailer jacking system is designed to be self-contained, using the trailer's own axle assembly and a single jack to perform leveling. The system allows the trailer to level itself without requiring external blocks or assistant equipment, making the operation simple and independent.
2Stability of the object's composition
If a jack is positioned beneath the bars to lift and level the trailer, then even weight distribution is achieved, but the system requires additional components
Solution Approach 1:
The bars serve multiple functions: they provide structural support between the axles, serve as leverage points for the jack, and act as leveling beams to distribute weight evenly. This multi-functionality reduces the need for separate components while achieving stable weight distribution.
Solution Approach 2:
The bars are positioned to create an equipotential leveling surface between the axles, ensuring that when the jack lifts the trailer, the weight is distributed evenly across both axles. This geometric arrangement naturally achieves balanced weight distribution without complex adjustment mechanisms.
3Ease of operation
If jacking components are permanently installed on the trailer, then leveling is always available, but removal and storage becomes problematic
Solution Approach 1:
The jacking system is divided into separable components: the bars are permanently mounted between the axles as part of the trailer structure, while the jack itself remains a removable tool. This segmentation allows the permanent integration of essential support structures while keeping the active jacking component portable for storage when not in use.
Data Source
AI summary
A trailer jacking system includes a trailer that has a pair of axles, a first lateral side and a second lateral side. A pair of bars is provided and each of the bars is coupled between each of the axles. A jack is selectively positioned beneath the bars for jacking the trailer. Each of the bars is oriented collinear with an associated one of the first and second lateral sides. In this way each of the bars facilitates the trailer to be leveled between the first and second lateral sides when the trailer is jacked. A plurality of u-bolts is provided and each of the u-bolts bolts is coupled between the bars and an associated one of the axles to retain the bars on the axles.