Modular Tying Tool Blade for Rapid Unjamming

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Solution Overview

Problem

Existing tying tools in agriculture face issues with accessibility and maintenance due to complex designs, leading to prolonged inactivity from wire jamming and excessive components for wire transmission, which increases space occupation and handling difficulties.

Innovation Solution

A tying tool with a gearmotor and a tying region containing a cutting portion within a box-like support, allowing quick disassembly of the blade and contrast blade, and a simplified wire transmission system using a gearmotor and conical pinion, reducing the number of components and space required.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the blade and contrast blade are integrated into a complex tying region structure, then the cutting function is effective, but the accessibility for maintenance and unjamming becomes difficult

Engineering Contradiction:
Improvecutting functionVSAvoidaccessibility for maintenance
Core Design Contradiction:
ReliabilityVSEase of repair

Solution Approach 1:

The tying region is divided into modular components: the blade assembly (with blade and contrast blade) can be detached as a separate unit from the handle and tying mechanism. This segmentation allows the cutting components to be accessed, removed, and maintained independently without disassembling the entire device, resolving the contradiction between effective integrated cutting function and ease of maintenance accessibility.

Inventive Principle:
Principle #1Segmentation

2Manufacturing precision

If multiple transmission components (conical pinion, annular element, gear, pinion) are used to advance the wire, then the wire feeding control is precise, but the number of components and space occupation increases

Engineering Contradiction:
Improvewire feeding controlVSAvoidnumber of components
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent combines multiple transmission functions into a simplified wire advancement mechanism. Instead of separate conical pinion, annular element, gear, and pinion components, the invention integrates wire feeding control into a more compact transmission system that achieves precise wire advancement with fewer parts, reducing device complexity while maintaining manufacturing precision.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The gearmotor serves multiple functions: it provides both the rotational motion for wire advancement and the controlled feeding mechanism through its integrated transmission system. This multi-functionality eliminates the need for separate dedicated transmission components, reducing the overall number of parts while maintaining precise wire feeding control.

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

3Manufacturing precision

If a complex transmission system with multiple components is used, then the wire advancement is controlled, but the space occupation and handling difficulty increase

Engineering Contradiction:
Improvewire advancement controlVSAvoidhandling ease
Core Design Contradiction:
Manufacturing precisionVSEase of operation

Solution Approach 1:

The transmission components are merged into a compact integrated system within the handle assembly. The gearmotor and its transmission elements (conical pinion, annular element) are combined in a space-efficient arrangement that reduces the overall device footprint, making the tool easier to handle and maneuver while maintaining precise wire advancement control.

Inventive Principle:
Principle #5Merging (Combining)

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 tool enables rapid unjamming and maintenance, reducing downtime, and is more compact and easier to handle with fewer components for wire transmission, enhancing reliability and cost-effectiveness.

Implementation Method 1

a gearmotor and a tying region, which extends from said handle and comprises, in the following order: a portion for cutting the tying wire, a twisting unit for said wire

Methodology Applied
Scientific EffectElectromagnetic conversion: Electromagnetic Induction

Implementation Method 2

a transmission comprising an annular element engaged with a conical pinion keyed to the output shaft of said gearmotor

Methodology Applied
Scientific EffectMechanical transmission through gear engagement: Gear

Implementation Method 3

a blade for cutting the wire... with a cutting portion which is arranged at right angles to the sliding direction of the wire and is able to rotate about the axis of the cylindrical space occupation

Methodology Applied
Scientific EffectMechanical cutting: Friction

Data Source

PatentEP4049531B1Tying tool
Publication Date: 2024.12.11 ZANON
  • EP4049531B1 patent drawingFigure 1~2
  • EP4049531B1 patent drawingFigure 3
  • EP4049531B1 patent drawingFigure 4

AI summary

A tying tool (10) comprising a handle (11) containing a gearmotor (12) and a tying region (13), which extends from the handle (11) and comprises, in the following order: - a portion (14) for cutting the tying wire, - a twisting unit (15) for the wire, - a hook-like terminal guide (16) for the sliding of the wire. The tying tool (10) comprises means for the quick disassembly of the cutting portion (14).