Trampoline Bungee Cord Connecting Structure with Anti-Friction Bearings
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Solution Overview
Problem
Conventional trampolines using spring steel springs are hazardous due to wire cuts and fatigue fractures, and the installation of these springs is laborious, making them unsafe and difficult for individual users to set up. Additionally, there is a lack of suitable connecting structures for bungee cords in the market, which are proposed as a safer alternative.
Innovation Solution
A combined double buckle and bungee cord connecting structure for trampolines, featuring an edge-folded round steel connected to the trampoline frame with anti-friction bearings and bungee cords fixed to tri-glide buckles on the jumping mat, reducing abrasion and improving safety by distributing stress uniformly and preventing friction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If spring steel springs are used in conventional trampolines, then the trampoline can provide elastic rebound function, but users are at risk of injury from wire cuts and fatigue fractures
Solution Approach 1:
The patent removes the harmful spring steel component from the trampoline system and replaces it with bungee cords made of elastic fiber materials. This extraction eliminates the sources of injury (wire cuts and fatigue fractures) while preserving the essential elastic rebound function through the bungee cord assembly.
Solution Approach 2:
The patent introduces an intermediary protective structure consisting of a protective sleeve and protective cover that wraps around the bungee cord. This intermediary layer prevents direct contact between users and the bungee cord, eliminating injury risks while maintaining the elastic function.
2Ease of manufacture
If spring steel springs are used in conventional trampolines, then elastic rebound function is achieved, but installation is laborious and requires special tools
Solution Approach 1:
The patent divides the elastic support system into modular components: bungee cords, protective sleeves, protective covers, and connecting structures. This segmentation allows each component to be independently assembled and connected, eliminating the need for special tools and reducing installation complexity compared to traditional spring systems.
Solution Approach 2:
The bungee cord assembly is designed to be self-installing through simple connecting structures that do not require special tools. The elastic fiber material and connecting design enable users to complete installation themselves without professional assistance, significantly reducing installation time and effort.
3Reliability
If bungee cords are used instead of springs, then safety is improved, but abrasion of components increases due to lack of suitable connecting structures
Solution Approach 1:
The patent introduces protective sleeves and protective covers as intermediary elements that wrap around the bungee cords and connecting structures. These protective layers prevent direct abrasion between the bungee cords and frame components, significantly extending the service life of the bungee cords while maintaining the safety benefits of the elastic fiber material.
Solution Approach 2:
The protective sleeves and covers are pre-installed on the bungee cords and connecting structures before use. This beforehand protection prevents abrasion damage from occurring in the first place, extending the operational life of the bungee cords while preserving their safety advantages.
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 solution effectively prolongs the service life of bungee cords, enhances safety by preventing injuries from spring steel, and simplifies the installation process without requiring special tools, making the trampoline safer and more comfortable to use.
Implementation Method 1
anti-friction bearings connected to the edge-folded round steel equidistantly and rotatably
Implementation Method 2
anti-friction bearings connected to the edge-folded round steel equidistantly and rotatably
Implementation Method 3
bungee cords, where certain ends of the bungee cords are respectively fixed to the edge-folded round steel
Data Source
AI summary
A combined double buckle and bungee cord connecting structure for a trampoline is provided. The combined double buckle and bungee cord connecting structure for a trampoline includes a trampoline frame; an edge-folded round steel connected to an inner side of the trampoline frame; anti-friction bearings connected to the edge-folded round steel equidistantly and rotatably; and bungee cords. The trampoline frame is one of a round shape, a hexagonal shape, and a square shape. The edge-folded round steel is connected to the inner side of the trampoline frame by either welding or riveting. The anti-friction bearings are made of one of a plastic, a metal, and a chemical fiber. The bungee cords each are either a round bungee cord or a flat bungee cord. Therefore, the structure effectively reduces the abrasion of the bungee cords in use and can greatly prolong the service lives of the bungee cords.