Trailer Leveling Device with Interlocking Tine Blocks
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Solution Overview
Problem
Existing trailer leveling methods, particularly for recreational trailers, are cumbersome and prone to instability due to the use of heavy hydraulic jacks, which are difficult to place and often fall over on uneven terrain, requiring additional chocking to prevent movement.
Innovation Solution
A drive-on leveling device featuring blocks with opposing tines that create a level surface when assembled, providing a strong, lightweight, and durable assembly that can be easily transported and operated without tools, offering both leveling and chocking functions to stabilize the trailer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If heavy hydraulic jacks are used to level the trailer, then the leveling function is achieved, but the device becomes difficult to place and operate on uneven terrain
Solution Approach 1:
The leveling device is divided into separate modular components: leveling blocks with tines, wheel chocks, and support blocks. Each component performs a specific function and can be independently positioned and operated, eliminating the need for heavy integrated hydraulic systems while maintaining stability on uneven terrain.
Solution Approach 2:
The tine structure acts as an intermediary between the ground and the trailer. The tines penetrate the ground surface to provide anchoring, while the block structure distributes the load, mediating the interaction between the unstable ground and the trailer weight to achieve stable leveling.
2Reliability
If hydraulic jacks are used to elevate the trailer, then leveling is achieved, but additional chocking is required to prevent movement
Solution Approach 1:
The leveling block assembly integrates multiple functions into a unified structure: the inclined blocks provide elevation and leveling, while the chock blocks with opposing tines provide wheel restraint. This merged system eliminates the need for separate hydraulic jacks and chocking devices, reducing overall complexity while maintaining stability.
Solution Approach 2:
Each block in the assembly serves multiple purposes: the leveling blocks elevate and level the trailer while also providing structural support, and the chock blocks restrain wheels while distributing load. This multi-functionality reduces the total number of components needed compared to traditional separate systems.
3Reliability
If traditional leveling blocks are used, then leveling is achieved, but they lack stability on uneven ground surfaces
Solution Approach 1:
The block structure incorporates varying local properties: the upper surfaces provide flat stable contact points for the trailer, while the lower portions feature penetrating tines for ground anchoring. This local differentiation of structural qualities allows the same component to interface effectively with both the trailer and the uneven ground surface.
Solution Approach 2:
The tine structure allows for dynamic adaptation to ground conditions. The tines can penetrate at varying depths and angles depending on the ground surface irregularities, allowing the block to dynamically adjust its positioning and load distribution to maintain stability on uneven terrain.
Data Source
AI summary
The disclosed embodiments relate to a drive-on leveling device that is adapted for single and tandem axle recreational trailers. It is placed beneath the trailer wheel that supports the weight of the vehicle, on the side that has the lower elevation. The leveling device's two-block assembly creates a level plane that is stationary. The incline block and chock block are each designed with tines that allow insertion into one another for quick leveling and chocking.