Composite Jack Stand Load Spreader for Unbalanced Heavy Loads
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Solution Overview
Problem
Conventional heavy-duty jack stands are cumbersome and pose a risk of personal injury due to their weight, requiring multiple persons to lift and position them, and often require expensive machinery for safe handling, while also struggling to support loads evenly, leading to potential fractures under unbalanced loads.
Innovation Solution
A lightweight heavy-duty jack stand with a load spreader made from composite materials and metal components, featuring a wide base for stability, distributed engagement formations, and a handle, capable of supporting loads up to 400 tonnes, utilizing pultrusion-processed composite materials with aligned fibers for enhanced compressive strength and a monitoring system with load sensors and alarms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional heavy-duty jack stands are made from metal parts to sustain heavy loads, then the load-bearing capacity is improved, but the weight of the jack stand increases making it cumbersome to move
Solution Approach 1:
The jack stand uses composite materials (such as carbon fiber reinforced polymers or other high-strength-to-weight-ratio materials) to construct the main body structure. This allows the stand to maintain high load-bearing capacity (supporting heavy loads) while significantly reducing the overall weight compared to traditional all-metal constructions, making it easier to move and position manually.
2Stability of the object's composition
If the base is made wider to distribute weight and provide stability, then the stability is improved, but the footprint area increases
Solution Approach 1:
The base incorporates localized reinforcement and strategic weight distribution features rather than uniformly increasing the entire base area. This includes concentrated support points, internal structural reinforcements in critical areas, and optimized material distribution that provides enhanced stability and load distribution while minimizing the overall footprint area.
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 jack stand is significantly lighter than conventional stands, safer to handle, and capable of supporting higher loads without fracturing, while the monitoring system ensures safe operation and efficient load management, reducing the risk of injury and improving productivity.
Implementation Method 1
The post and/or parts of the load spreader may include composite material. The composite material may include polymeric resin material and high strength fibres.
Implementation Method 2
The fibre material may include glass fibre, carbon fibre, and aramid (Kevlar) fibre or other like high tensile composite re-inforcing fibre material.
Implementation Method 3
The composite material may be formed via a pultrusion process.
Implementation Method 4
The reinforcing fibres may be separately wound around the post to improve compressive strength.
Data Source
Figure 1a~1b
Figure 2a~2d
Figure 3
AI summary
The present invention relates to a jack stand. The jack stand includes a base and a post for extending from the base. A top is provided for topping the post and engaging with a load. The top includes a load spreader for spreading the weight of the load to the post. Advantageously, the spreader spreads the weight of the load to the post thereby resulting in a more heavy duty jack-stand, rated for significantly higher loads, than prior jack stands which instead can fracture under heavy unbalanced loads locally travelling along one side when the loading is not evenly spread.