Work Device with Load-Bearing Suspension and Posture Stabilization

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Solution Overview

Problem

Existing work devices for flight vehicles, such as drones, face instability during transport and operation, leading to objects being detached, which is time-consuming and inefficient.

Innovation Solution

A work device with a holding mechanism to suspend and support the object, and posture change mechanisms to stabilize the object's posture, allowing for clear role division between load-bearing and posture-stabilizing functions, enabling stable operation even with heavy objects.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If the unfastening unit cuts the wire rope to unfasten the object, then the flight stability is improved, but the object cannot be transported to the destination and work cannot be started

Engineering Contradiction:
Improveflight stabilityVSAvoidtransport efficiency
Core Design Contradiction:
Stability of the object's compositionVSProductivity

Solution Approach 1:

The work device is divided into two functional segments: a holding mechanism for load-bearing and a posture change mechanism for stabilization. This segmentation allows the holding mechanism to maintain secure connection while the posture change mechanism actively stabilizes the object during flight, eliminating the need to cut the wire rope and enabling successful transport to destination.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The posture change mechanism acts as an intermediary between the holding mechanism and the object. It receives the load from the holding mechanism and actively stabilizes the object's posture, preventing instability that would otherwise require cutting the connection. This intermediary function enables both stable flight and successful delivery.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Productivity

If the holding mechanism and posture change mechanism work together, then the object can be transported to destination, but the structure becomes more complex

Engineering Contradiction:
Improvetransport capabilityVSAvoidmechanism structure
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

By dividing the work device into distinct holding and posture change mechanisms with clear role division, the system achieves transport capability while maintaining manageable structural complexity. Each mechanism is optimized for its specific function rather than trying to perform all functions in a single complex unit.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The holding mechanism serves both as the load-bearing structure and as a housing for the communication line, reducing overall complexity. The posture change mechanism provides both stabilization and active posture control. This multi-functionality approach enables transport capability without proportionally increasing complexity.

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

3Force

If the holding mechanism bears the load of the object, then the support force is improved, but the posture change mechanism becomes more complex

Engineering Contradiction:
Improvesupport forceVSAvoidposture change mechanism
Core Design Contradiction:
ForceVSDevice complexity

Solution Approach 1:

The load-bearing function is segmented from the posture control function. The holding mechanism handles all load support, while the posture change mechanism focuses solely on stabilization. This functional segmentation allows the posture change mechanism to remain relatively simple since it only needs to counteract minor instabilities rather than support the full object weight.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The posture change mechanism uses elastic members as counterbalancing elements that compensate for minor weight variations and instabilities. Rather than needing to support the full object weight, it only needs to provide corrective forces to maintain posture, significantly reducing its structural requirements and complexity.

Inventive Principle:
Principle #8Anti-weight (Counterweight)

Data Source

PatentEP4644242A1Work device
Publication Date: 2025.11.05 KUBOTA CORP
  • EP4644242A1 patent drawingFigure 1
  • EP4644242A1 patent drawingFigure 2
  • EP4644242A1 patent drawingFigure 3

AI summary

Provided is a work device capable of performing work stably without detaching an object. A work device (4) from which an object (3) is capable of being suspended includes: a holding mechanism (40) configured to hold the object (3) in such a manner that the object (3) is suspended; at least one posture change mechanism (41) configured to change a posture of the object (3); and a control unit (43) configured to control operation of at least the at least one posture change mechanism (41).