Trampoline Support Rack Stress Distribution
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Solution Overview
Problem
Conventional trampolines with circular tube frames face deformation and safety issues due to uneven stress distribution on the tubular junctions, leading to reduced durability and potential safety concerns.
Innovation Solution
A trampoline design featuring a circular support rack with first and second support tubes, each with coupling ends and bent tube sections, and ridges and grooves to enhance stress distribution and physical strength, ensuring even stress dispersal and increased durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional circular tube frames are used, then manufacturing cost is reduced and assembly is simplified, but the frame junctions deform due to uneven stress distribution
Solution Approach 1:
The patent applies local quality by adding reinforcement ribs specifically at the junction areas where stress concentration occurs, while leaving other parts of the tubular frame simple. This localized reinforcement strengthens the vulnerable junction spots without complicating the overall frame structure or manufacturing process.
Solution Approach 2:
The patent implements preliminary action by pre-forming the tubular joints with optimized geometric shapes and reinforcement features during manufacturing, so that when the frame is assembled and subjected to stress, the junctions are already prepared to distribute loads evenly and resist deformation.
2Ease of manufacture
If simple tubular joints are used, then manufacturing is easier and cost is lower, but the junctions cannot effectively distribute stress and deform under load
Solution Approach 1:
The patent applies local quality by adding reinforcement ribs specifically at the junction areas where stress concentration occurs, while leaving other parts of the tubular frame simple. This localized reinforcement strengthens the vulnerable junction spots without complicating the overall frame structure or manufacturing process.
Solution Approach 2:
The patent employs curvature principles by designing rounded, smooth transitions in the tubular joints rather than sharp corners. The curved geometry helps distribute stress more evenly through the joint area, preventing stress concentration at sharp edges while maintaining manufacturing feasibility.
3Reliability
If the frame junctions are reinforced to withstand stress, then durability is improved, but the structural complexity and manufacturing difficulty increase
Solution Approach 1:
The patent applies local quality by adding reinforcement ribs specifically at the junction areas where stress concentration occurs, while leaving other parts of the tubular frame simple. This localized reinforcement strengthens the vulnerable junction spots without complicating the overall frame structure or manufacturing process.
Solution Approach 2:
The patent applies segmentation by dividing the reinforcement features into distinct, modular elements (such as individual ribs or加强 plates) that can be manufactured separately and assembled into the frame junctions, simplifying the overall manufacturing process while providing targeted reinforcement.
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 design effectively disperses stress across the circular support rack, enhancing its physical strength and durability, reducing the likelihood of deformation and improving user safety by distributing forces more evenly.
Implementation Method 1
The spring has one end latched on the frame at an upper side close to the inner side. When a user jumps on the trampoline the spring stretches the frame.
Implementation Method 2
a plurality of spring members and a cylindrical wall made of a resilient net
Data Source
AI summary
A trampoline includes a rebounding portion and a circular support rack. The rebounding portion includes a pad and a plurality of elastic members located on the circumference of the pad. The circular support rack is located around the rebounding portion and connected to the elastic members, and includes an inner ring side facing the rebounding portion and an outer ring side opposite to the inner ring side, and also includes at least one first support tube and one second support tube. The first support tube and second support tube have respectively a bent tube section, a first coupling end and a second coupling end corresponding to the first coupling end. The first coupling end includes a first support section located on the inner ring side, a second support section located on the outer ring side and at least one first ridge between the first and second support sections.