Foldable Trampoline with Central Joint Bracing Struts

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Solution Overview

Problem

Existing foldable trampolines struggle to balance space-saving storage with stability during jumping activities.

Innovation Solution

The design features at least three parallel posts with foldable bracing struts that have central joints, allowing the trampoline to be folded compactly and unfolded to maximize the jump area, while additional stability is achieved through multiple posts and a tensioning apparatus.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If the trampoline is designed to be foldable for space-saving storage, then the storage space is reduced, but the stability during jumping activity deteriorates

Engineering Contradiction:
Improvestorage spaceVSAvoidstability during jumping
Core Design Contradiction:
Volume of moving objectVSStability of the object's composition

Solution Approach 1:

The trampoline frame is divided into multiple independent posts (at least three) connected by bracing struts, allowing the structure to be segmented for folding while maintaining stability when assembled. Each post can be independently positioned and secured, enabling compact storage when folded and stable configuration when deployed.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The bracing struts are designed with foldable joints that allow the structure to dynamically transition between folded and unfolded states. The struts can pivot at connection points to the posts, enabling the frame to adapt its configuration from a compact folded state for storage to an extended stable state for jumping activities.

Inventive Principle:
Principle #15Dynamics

2Stability of the object's composition

If multiple bracing struts are added to improve stability, then the stability increases, but the device complexity increases

Engineering Contradiction:
ImprovestabilityVSAvoidstructure complexity
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The bracing struts serve multiple functions: they provide structural stability by connecting posts, enable folding capability through pivot joints, and can be tensioned to secure the jumping bed. This multi-functionality reduces the need for separate components, thereby limiting the increase in device complexity while achieving enhanced stability.

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

Solution Approach 2:

The bracing struts combine multiple structural elements into a single component that performs stabilization, folding, and tensioning functions. By merging these functions into unified struts rather than separate components, the overall device complexity is kept manageable despite the enhanced stability provided by multiple struts.

Inventive Principle:
Principle #5Merging (Combining)

3Power

If the jumping bed is tightly tensioned to improve bounce performance, then the bounce increases, but the risk of tearing or damage increases

Engineering Contradiction:
ImprovebounceVSAvoidrisk of tearing
Core Design Contradiction:
PowerVSReliability

Solution Approach 1:

The tensioning apparatus allows adjustment of the jumping bed tension parameters. The bed can be tensioned to optimal levels for bounce performance while avoiding excessive tension that would increase the risk of tearing. The system enables parameter optimization to balance performance and reliability.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The frame structure with multiple posts and bracing struts provides a stable, distributed support system that cushions and distributes the forces acting on the jumping bed during use. This pre-engineered support structure helps prevent localized stress concentrations that could lead to tearing, allowing the bed to be tensioned for good bounce performance while maintaining reliability.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

Data Source

PatentUS12233316B2Fold-up trampoline, method for folding up a trampoline and method for tensioning a jumping bed
Publication Date: 2025.02.25 WEINAST MAIKE
  • US12233316B2 patent drawing
  • US12233316B2 patent drawing
  • US12233316B2 patent drawing

AI summary

A fold-up trampoline, having at least three posts arranged in parallel to one another and to a vertical direction (V), wherein a jumping bed is tensioned between the at least three posts, at least three bracing struts which connect a respective other pair of posts arranged next to one another in a peripheral direction (U) of the trampoline and stabilize these posts in a horizontal direction (H), wherein each bracing strut is foldably mounted on both posts arranged next to one another in the peripheral direction (U) and has at least one central joint, which is provided in a central region (B1) of the bracing strut, wherein all the posts arranged next to one another in the peripheral direction (U) can be moved towards one another in order to fold up the trampoline.