Folding Articulating Wing Locking Mechanism

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Solution Overview

Problem

Conventional folding wing mechanisms for aircraft and drones are complex, unreliable, and costly due to numerous parts and intricate motions, making them impractical for compact and efficient deployment and storage.

Innovation Solution

A compact foldable articulated wing assembly with a locking plunger and follower spring mechanism that securely locks the wing in the extended position, utilizing a tapered locking plunger urged by a coiled compression spring, allowing for reliable and efficient folding and extension with directional control.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If conventional folding wing mechanisms are used, then the wing can be folded and extended, but the mechanism becomes complex with many parts and intricate motions

Engineering Contradiction:
Improvemechanism complexityVSAvoidmechanism reliability
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The mechanism is divided into distinct functional segments: a locking plunger for positive locking, a follower spring for actuation, and a simple hinge for folding motion. This segmentation allows each component to perform its specific function independently, reducing overall complexity while maintaining reliability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent extracts and eliminates unnecessary intermediate components from conventional mechanisms, retaining only the essential elements needed for folding and locking functions. This simplification reduces the number of parts and motions required while preserving the core functionality.

Inventive Principle:
Principle #2Taking out (Extraction)

2Ease of manufacture

If conventional folding wing mechanisms are used, then the wing can be folded and extended, but the manufacturing process becomes more complex and costly

Engineering Contradiction:
Improvemanufacturing easeVSAvoidmechanism complexity
Core Design Contradiction:
Ease of manufactureVSDevice complexity

Solution Approach 1:

The locking plunger and follower spring are integrated into a unified assembly that can be manufactured as a single unit or pre-assembled module. This merging of functions reduces the number of separate manufacturing steps and simplifies the production process while maintaining the required functionality.

Inventive Principle:
Principle #5Merging (Combining)

3Volume of moving object

If a compact folding mechanism is used, then storage volume is reduced, but the locking mechanism may become less reliable

Engineering Contradiction:
Improvestorage volumeVSAvoidlocking reliability
Core Design Contradiction:
Volume of moving objectVSReliability

Solution Approach 1:

The locking plunger incorporates a tapered geometry that provides localized engagement with the locking surface. This local quality enhancement ensures positive locking engagement within a compact space, maintaining reliability without requiring excessive volume for the locking mechanism.

Inventive Principle:
Principle #3Local quality

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The solution provides a reliable, compact, and cost-effective mechanism for securing the wing in a fully extended position, reducing complexity and manufacturing costs while enabling efficient directional control and storage.

Implementation Method 1

a tapered locking plunger urged by a coiled compression spring to contact a complementary mating surface

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS7732741B1Folding articulating wing mechanism
Publication Date: 2010.06.08 THE GOVERNMENT OF THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SEC OF THE NAVY NAVAL RES LAB WASHINGTON
  • US7732741B1 patent drawing
  • US7732741B1 patent drawing
  • US7732741B1 patent drawing

AI summary

A locking mechanism for securing an articulated folding wing assembly in a fully extended position by means of a tapered locking plunger urged by a coiled compression spring to contact a complementary mating surface formed on the wing assembly. The spring urged locking plunger is released from a retracted position by rotation of the wing assembly from the folded position to the extended position. A folding mechanism for rotating the wing assembly through a compound angle from the folded position to a rigid and positively locked fully extended position is provided wherein the extended wing may be rotated about its longitudinal axis to provide directional control to the vehicle.