Turnbuckle Drive Gear for Faster Tightening and Loosening

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Solution Overview

Problem

The existing methods for tightening and loosening turnbuckles, particularly those used for fastening shipping containers, are labor-intensive and slow due to the need for manual operation with hand tools.

Innovation Solution

A device with a drive system comprising a driveshaft, main cogwheel, reduction gear, and an electric motor, along with a removable battery, that allows for efficient rotation of the turnbuckle, either with an integrated motor or using external power sources like a cordless drill, to facilitate faster tightening and loosening.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If hand tools are used to tighten and loosen turnbuckles, then the operation can be performed manually, but the process is slow and labor-intensive

Engineering Contradiction:
Improvemanual operationVSAvoidhandling speed
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The patent replaces manual mechanical operation with an automated motor-driven system. The device incorporates an electric motor that rotates the turnbuckle automatically, eliminating the need for manual handling with hand tools. This substitution directly addresses the contradiction by maintaining ease of operation (the device is still manually operated) while dramatically improving productivity through automated rotation.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces dynamic elements including a motor that can rotate in both directions, a reversible gear mechanism, and a clutch system that allows bidirectional rotation. This dynamic design enables the same device to both tighten and loosen turnbuckles efficiently, improving productivity without compromising operational flexibility.

Inventive Principle:
Principle #15Dynamics

2Productivity

If a motor-driven device is used to rotate the turnbuckle, then productivity increases, but device complexity increases

Engineering Contradiction:
Improvetightening and loosening speedVSAvoidmechanism complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent divides the device into distinct functional modules: a motor unit, a gear reduction unit, a clutch mechanism, and a frame. This segmentation allows each component to perform its specific function independently, making the overall complex system manageable and maintainable while achieving high productivity through coordinated operation of these modular components.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent designs a multi-functional device that can both tighten and loosen turnbuckles using the same motor-driven mechanism. The reversible motor and bidirectional clutch system allow a single device to perform multiple operations, reducing the need for separate tools and justifying the increased complexity through versatility and improved productivity.

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

3Force

If reduction gear is used to increase torque, then the ability to tighten turnbuckle improves, but the number of moving parts increases

Engineering Contradiction:
ImprovetorqueVSAvoidnumber of components
Core Design Contradiction:
ForceVSDevice complexity

Solution Approach 1:

The patent introduces a gear reduction mechanism as an intermediary between the motor and the turnbuckle rotation. This gear system acts as a mediator that transforms the motor's high-speed, low-torque output into low-speed, high-torque rotation suitable for tightening turnbuckles, while the clutch mechanism serves as another intermediary to enable bidirectional control.

Inventive Principle:
Principle #24Intermediary (Mediator)

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 device significantly reduces the effort required to tighten and loosen turnbuckles, enabling faster and more efficient handling, especially in the context of shipping container operations.

Implementation Method 1

an electric motor, which rotates a driveshaft

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Implementation Method 2

a reduction gear between the driveshaft and the main cogwheel

Methodology Applied
Scientific EffectMechanical advantage through gear reduction: Gear

Data Source

PatentEP4450227A1Device and method for tightening and loosening a turnbuckle
Publication Date: 2024.10.23 MÖNKKÖNEN MARKKU
  • EP4450227A1 patent drawingFigure 1
  • EP4450227A1 patent drawingFigure 2~3
  • EP4450227A1 patent drawingFigure 4~5

AI summary

The invention concerns a device and a method for tightening and loosening turnbuckles. The device (100) has a drive system comprising a driveshaft (104), a main cogwheel (106) and a reduction gear between the driveshaft (104) and the main cogwheel (106). The reduction gear transmits rotation of the driveshaft (104) to rotation of the main cogwheel (106) with a lower rotation speed and increases torque. The main cogwheel (106) has an opening (108), which is configured to accommodate a part of the turnbuckle in such a way that the rotation axis of the turnbuckle and the rotation axis of the main cogwheel are coaxial.