Flying Machine Frame with Segmented Axles for Stability

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Solution Overview

Problem

Flying machines equipped with multiple wheels face a trade-off between mobility performance and support rigidity, as thin axles to reduce weight compromise support and stability during landing and flight.

Innovation Solution

A flying machine frame structural body with a circular tubular cage-shaped frame and rotatably supported wheels, featuring an elastic support mechanism and anti-removal members to enhance stability and mobility while minimizing weight and air resistance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Weight of moving object

If axles are made thin to reduce weight, then weight is reduced, but support rigidity of wheels deteriorates

Engineering Contradiction:
Improveweight of axlesVSAvoidsupport rigidity of wheels
Core Design Contradiction:
Weight of moving objectVSStrength

Solution Approach 1:

The axle support system is segmented into multiple axles (first axle and second axle) that independently support different wheels. This segmentation allows each axle to be optimized for its specific function, enabling the use of thinner, lighter axles while maintaining overall support rigidity through the distributed multi-axle configuration.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different axles are designed with different local qualities - the first axle has a first thickness and the second axle has a second thickness, allowing each axle to be optimized for its specific load requirements. This local optimization enables weight reduction while maintaining necessary support rigidity at each wheel position.

Inventive Principle:
Principle #3Local quality

2Weight of moving object

If axles are made thin to reduce weight, then weight is reduced, but stability during landing and flight deteriorates

Engineering Contradiction:
Improveweight of axlesVSAvoidstability during landing and flight
Core Design Contradiction:
Weight of moving objectVSStability of the object's composition

Solution Approach 1:

The wheel support system is divided into multiple independent axle-wheeled bodies, where each axle supports specific wheels. This segmentation creates a more stable distributed support structure that reduces oscillation during flight and landing, while allowing each individual axle to be lighter.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Multiple axles and wheels are combined into an integrated frame structure where the first axle body and second axle body are both coupled to the same frame. This merging creates a unified stable platform that reduces oscillation while allowing weight optimization of individual components.

Inventive Principle:
Principle #5Merging (Combining)

3Adaptability or versatility

If multiple wheels are added to improve mobility, then mobility performance is improved, but device complexity increases

Engineering Contradiction:
Improvemobility performanceVSAvoidcomplexity of wheel support structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The axles serve multiple functions - they support wheels for ground mobility, provide structural coupling to the frame, and act as rotation axes. This multi-functionality reduces the need for separate components, simplifying the overall structure while enabling multiple wheels for improved mobility.

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

Solution Approach 2:

The axle structure merges the wheel support function, rotation function, and frame coupling function into a single integrated component. This merging reduces the number of separate parts needed, simplifying the device while enabling multi-wheel configuration for enhanced mobility performance.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentEP3141479B1Flying machine frame structural body, flying machine, flying machine usage method
Publication Date: 2021.05.05 FUJITSU LTD
  • EP3141479B1 patent drawingFigure 1
  • EP3141479B1 patent drawingFigure 2
  • EP3141479B1 patent drawingFigure 3

AI summary

A flying machine frame structural body (30) including: a frame (32) that surrounds a flying machine body (20) including a rotating blade (22), and to which the flying machine body (20) is fixed; and plural wheels (34) that are rotatably supported by the frame (32).