Trampoline Hook Element Structure for Low-Wear Strap Suspension
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Solution Overview
Problem
Trampolines with single elastic strap suspensions face issues such as complex fastening, tilting of the jumping sheet, and premature wear, requiring replacement of the entire strap when a single point is abraded, which affects durability and wear resistance.
Innovation Solution
The use of hook elements with separate receiving sections for loop ends of strap sections, arranged at the same height to prevent contact and relative movement, combined with a connecting web for flexible attachment to the jumping sheet and side walls to prevent sliding, enhances durability and wear resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If loop ends of strap sections are allowed to contact each other in the hook element, then the structure is simpler, but relative movement and friction occur causing premature wear
Solution Approach 1:
The hook element is divided into two separate receiving sections (first receiving section and second receiving section) that are arranged separated from one another. Each receiving section independently holds one loop end of the strap section, preventing the loop ends from contacting each other and eliminating friction-induced wear while maintaining structural simplicity
2Ease of manufacture
If the entire strap must be replaced when one point is abraded, then manufacturing is simpler, but loss of time and resources increase
Solution Approach 1:
The strap suspension system is segmented into multiple independent strap sections, each with its own hook element. When one strap section becomes worn or abraded, only that specific section needs to be replaced while the other strap sections remain functional, significantly reducing replacement time and resource waste
Solution Approach 2:
The system allows for selective replacement of only the worn strap section while retaining and reusing the intact strap sections, maximizing resource utilization and minimizing waste
3Device complexity
If loop ends are arranged at different heights in the hook element, then the structure is simpler, but relative movement between loop ends causes wear
Solution Approach 1:
The first receiving section and second receiving section are arranged at substantially the same height, creating an equipotential arrangement that prevents relative movement between the loop ends during operation. This eliminates friction and wear caused by differential movement while maintaining structural simplicity
Data Source
AI summary
A trampoline includes a frame and a jumping bed which preferably has hook elements on its underside. The jumping bed is connected to the frame via a plurality of annular strap sections, which each extend at least partially around the frame and are inserted into the hook elements. The hook elements have a first receiving section and a second receiving section. These are arranged separated from one another in such a way that the two loop ends of the strap section, which are produced by the looping of the strap section around the frame and are inserted into the hook element, do not, or substantially do not, come in contact with one another. This structure considerably extends the life in comparison with conventional trampolines.