Axle Stand Adjustment Nut for Quick Stable RV Support
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Solution Overview
Problem
Existing axle stands for recreational vehicles face issues such as hydraulic fluid leaks causing environmental contamination and require cumbersome manual adjustments for stable support, while mechanical systems are inefficient.
Innovation Solution
An axle stand with an adjusting nut featuring a second inclined bore allows the stand shaft to slide without turning, facilitated by an inclined movement, combined with a lever for quick clamping and a stand shoe for magnetic attachment, enabling efficient and stable support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a hydraulic system is used for support, then the supporting mechanism achieves convenient operation with reduced manual effort, but hydraulic fluid leaks may occur causing environmental contamination and system failure
Solution Approach 1:
The patent extracts and removes the hydraulic system from the axle stand design, eliminating the harmful fluid leakage issue while transitioning to a purely mechanical screw-thread-based adjustment system that provides sufficient support functionality without environmental contamination risks
Solution Approach 2:
The patent employs simple, inexpensive mechanical components (screw threads, adjusting nuts, washers) instead of complex hydraulic systems with seals and fluid reservoirs. These mechanical parts are robust, maintenance-free, and eliminate the need for hazardous fluids, achieving a practical solution that prioritizes reliability and environmental safety over automated convenience
2Object-affected harmful factors
If a purely mechanical system is used for support, then environmental contamination is avoided, but multiple cumbersome manipulations are required to ensure firm and stable support
Solution Approach 1:
The patent incorporates an adjustable and tiltable stand shaft that can dynamically adapt its position and angle. The shaft can be tilted relative to the stand body and adjusted to different heights via the screw-thread mechanism, allowing the user to optimize the support position and achieve stable support with fewer manipulations while maintaining a purely mechanical system
Solution Approach 2:
The patent uses a screw-thread mechanism that converts rotational motion into linear displacement, allowing precise control of the stand shaft height. By rotating the adjusting nut, the stand shaft can be raised or lowered in controlled increments, providing firm support while avoiding the need for complex hydraulic adjustments or multiple manual manipulations
3Reliability
If the stand shaft is adjusted by rotating the adjusting nut along the screw thread, then stable support is achieved, but multiple cumbersome manipulations and time are required
Solution Approach 1:
The tiltable stand shaft allows for quick initial positioning and engagement with the vehicle axle, reducing the time needed for adjustment. Once positioned, the screw-thread mechanism provides rapid height adjustment with each rotation of the adjusting nut, combining dynamic positioning with reliable stable support while minimizing total adjustment time
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 axle stand provides quick and stable support for recreational vehicles with reduced manual effort, minimizing environmental risks and enhancing usability.
Implementation Method 1
a stand shaft (104) which comprises a spindle (1042) that comprises a screw thread, the adjustment system comprising an adjusting nut (103) which is configured such that, via a rotating movement in relation to the spindle, it adjusts the height of the stand shaft (104) with respect to the stand foot
Implementation Method 2
a stand shoe for magnetic attachment
Data Source
Figure 1~2B
Figure 3~4
AI summary
Disclosed according to an embodiment is an axle stand (100) configured for support of a recreational vehicle (400) on a surface, comprising a stand foot (105), an adjustment system (102, 103) and a stand shaft (104) which comprises a spindle that comprises a screw thread, the adjustment system comprising an adjusting nut (103) which is configured such that, via a rotating movement in relation to the spindle, it adjusts the height of the stand shaft (104) with respect to the stand foot (105), the adjusting nut (103) comprising a first cylindrical bore (201) along an axial direction that is provided with a screw thread corresponding to that of the spindle, characterized in that the adjusting nut (103) further comprises a second cylindrical even bore (202, 203) along a direction inclined in relation to the axial direction of the first bore (201) and intersecting it, wherein the diameter is at least equal to the outer diameter of the spindle.