Swivel Trailer Jack Spacer for Leveling on Uneven Ground
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Solution Overview
Problem
Trailers on uneven ground surfaces are difficult to level using traditional trailer jacks, necessitating additional equipment like wheel chocks, which add cost and space, and spacers only provide height without ensuring levelness.
Innovation Solution
A swivel mechanism integrated into a spacer for trailer jacks, allowing the seating plate to adjust and level the trailer by attaching to the jack's lower end, eliminating the need for wheel chocks by providing both height and levelness on uneven surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional trailer jacks are used on uneven ground, then the trailer can be supported at a certain height, but the trailer cannot be leveled properly
Solution Approach 1:
The seating plate is made rotatable relative to the spacer body, allowing it to dynamically adjust its orientation. This enables the plate to be rotated to a horizontal position even when the spacer is placed on uneven ground, thereby achieving proper leveling of the trailer while maintaining adaptability to various ground conditions
Solution Approach 2:
The leveling system is divided into separate functional components: the spacer body for height adjustment and the separable seating plate for orientation adjustment. This segmentation allows each component to perform its specific function independently - the spacer provides vertical support while the rotatable plate provides horizontal leveling, resolving the contradiction between height support and leveling precision
2Length of moving object
If spacers are added to increase height, then the front end height is increased, but the trailer still cannot be leveled
Solution Approach 1:
The rotatable seating plate allows the system to dynamically compensate for ground unevenness after the spacer has been positioned at the required height. By rotating the plate to a horizontal orientation, the system maintains both the increased front end height provided by the spacer and achieves proper leveling precision simultaneously
3Measurement precision
If wheel chocks are used to stabilize the trailer on uneven ground, then leveling is achieved, but additional equipment and space are required
Solution Approach 1:
The rotatable seating plate performs multiple functions: it provides the leveling surface for the trailer jack, enables orientation adjustment to achieve horizontal positioning, and stabilizes the assembly. This multi-functionality eliminates the need for separate wheel chocks or additional stabilizing equipment, achieving proper leveling precision while reducing device complexity and the number of required components
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 trailers to be leveled on uneven ground without additional stabilizing equipment, ensuring both height and levelness, reducing the need for wheel chocks and enhancing stability with reinforced materials and magnetic attachment.
Implementation Method 1
The swivel may be attached to the spacer such that the edges of the seating plate are able to move freely relative to the spacer when the trailer jack is seated into the swivel
Implementation Method 2
The spacer top may be further configured to include magnets for attracting the lower end of a metal trailer jack to a seating plate with swivel situated between the magnets and the lower end of the trailer jack
Data Source
AI summary
The invention comprises a seating plate including a concentric swivel leveler to be used for leveling a trailer on an uneven ground surface by inserting a connected trailer jack into the swivel and establishing a stationary position wherein the trailer is substantially level. In certain embodiments, a spacer is also provided with a receiving well for the swivel such that a height of the seating plate above the ground surface is increased such that the trailer jack need not be extended as far as it would but for the spacer. A spacer may be of durable material and includes reinforcing support members help support large loads. In certain embodiments, the swivel may be fastened to the spacer using nuts, bolts and the like so the swivel may swivel about the receiving well while the seating plate maintains a height above the space top to allow for the swiveling action.