Reversible Trampoline Hoop Cover with Asymmetric Fixing Straps

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Solution Overview

Problem

Existing trampoline hoop covers are not conveniently or quickly fixable when turned over, leading to monotonous color schemes and increased costs and space requirements for multiple colored covers.

Innovation Solution

A hoop cover design for trampolines that includes a cover top surface with inner and outer ring fixing straps, a threading opening for easy attachment after turning over, and detachable connecting pieces for quick installation and color changes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a single-color hoop cover is used, then cost and space requirements are reduced, but the visual appeal and user interest deteriorate due to monotony

Engineering Contradiction:
Improvecost and space requirementsVSAvoidvisual appeal and user interest
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The hoop cover is designed to be dynamically reversible, allowing users to switch between different color surfaces by turning the cover over. This dynamic capability provides visual variety and maintains user interest without requiring multiple separate covers, thus resolving the contradiction between cost efficiency and visual appeal

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

A single hoop cover is designed to serve multiple functions by having different colored surfaces on opposite sides. This multi-functionality allows one cover to replace what would traditionally require multiple separate covers, reducing cost and storage space while maintaining visual variety

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If multiple hoop covers with different colors are prepared for replacement, then visual appeal and user interest are improved, but cost and space requirements increase

Engineering Contradiction:
Improvevisual appeal and user interestVSAvoidcost and space requirements
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

Multiple color surfaces that would traditionally require separate hoop covers are merged into a single reversible cover structure. This consolidation reduces the number of separate components needed, lowering both manufacturing costs and storage space requirements while maintaining the ability to provide visual variety

Inventive Principle:
Principle #5Merging (Combining)

3Adaptability or versatility

If the hoop cover is designed with top and bottom side with different color fabric, then visual appeal and user interest are improved, but the fixing capability deteriorates after turning over due to asymmetric fixing device design

Engineering Contradiction:
Improvevisual appeal and user interestVSAvoidfixing capability after turning over
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The fixing straps are designed with asymmetric threading openings that compensate for the asymmetric orientation of the cover. The openings are positioned and oriented such that they accommodate the fixing straps in both the original and reversed positions, ensuring equal fixing capability regardless of which surface is facing up

Inventive Principle:
Principle #4Asymmetry

Solution Approach 2:

The fixing mechanism is designed to function effectively in both orientations by inverting the threading opening configurations. This allows the cover to be securely fixed whether in its original position or after being turned over, maintaining ease of operation across both configurations

Inventive Principle:
Principle #13The other way round (Inversion)

4Ease of operation

If the hoop cover cannot be rapidly fixed after turning over, then ease of operation is reduced, but the structural complexity increases due to additional fixing mechanisms

Engineering Contradiction:
Improverapid fixing capabilityVSAvoidfixing mechanism complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The threading openings are pre-positioned and pre-oriented during manufacturing to accommodate fixing straps in both orientations. This preliminary configuration eliminates the need for complex adjustable mechanisms, allowing rapid fixing in both positions while maintaining simple overall structure

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The same fixing strap and threading opening configuration serves dual functions for both orientations of the cover. This multi-functionality allows a single fixing mechanism design to handle both the original and reversed positions, achieving rapid fixing capability without increasing structural complexity

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS12311237B2Hoop cover for trampoline and trampoline
Publication Date: 2025.05.27 SUN BISHENG
  • US12311237B2 patent drawing
  • US12311237B2 patent drawing
  • US12311237B2 patent drawing

AI summary

The present disclosure provides a hoop cover for a trampoline and a trampoline. The hoop cover includes an annular cover top surface and a first side surface being cylindrical in shape, a circular edge at one side of the first side surface is fixedly connected to an outer rim edge of the cover top surface; a plurality of inner ring fixing straps are distributed along a circumferential direction at an inner rim edge of the cover top surface, each of the inner ring fixing straps is capable of being bindingly attached to the trampoline when in use; and a plurality of outer ring fixing straps are distributed and fixedly connected along a circumferential direction at the outer rim edge of the cover top surface, and each of the outer ring fixing straps is bindingly attached to the trampoline when in use.