Double-Bladed Guillotine Tree Processing Device

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Solution Overview

Problem

Existing tree-processing devices are either too heavy, expensive, or require expensive work machines, and lack versatility in handling different tree species, often necessitating relocation or sorting, and they produce excessive sawdust due to single-bladed cutting devices.

Innovation Solution

A tree-processing device with a lightweight, versatile design featuring a double-bladed guillotine cutting device that can be used both suspended from a work machine and independently on the ground, equipped with adjustable debarking elements and a positioning system for efficient cutting and splitting, and a compressed-medium system for enhanced operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-generated harmful factors

If a single-bladed cutting device is used, then the device construction is simpler, but sawdust is produced and cutting efficiency is reduced

Engineering Contradiction:
Improvesawdust productionVSAvoidcutting device construction
Core Design Contradiction:
Object-generated harmful factorsVSDevice complexity

Solution Approach 1:

The cutting device is divided into two separate guillotine blades instead of using a single blade. Each blade independently cuts through the tree trunk from opposite directions, eliminating sawdust production while maintaining structural simplicity through modular design

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If a harvester head is used, then cutting and splitting functions are integrated, but the purchase price and operating cost are very high

Engineering Contradiction:
Improveintegrated cutting and splitting functionVSAvoidpurchase price and operating cost
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The tree-processing device is designed to perform multiple functions (cutting and splitting) within a single lightweight structure that can be suspended from various work machines. The device accepts different tree diameters and species, providing universal functionality without requiring expensive specialized equipment

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

3Stability of the object's composition

If a heavy construction is used, then the device is more stable, but it requires expensive work machines and reduces economy

Engineering Contradiction:
Improvedevice stabilityVSAvoideconomy of operation
Core Design Contradiction:
Stability of the object's compositionVSEase of manufacture

Solution Approach 1:

The device employs a suspension system that counterbalances the weight of the cutting and splitting mechanisms. By suspending the device from the work machine's lifting boom, the heavy components are supported by the machine's hydraulic system rather than requiring the device itself to be heavily constructed for stability

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

4Adaptability or versatility

If the tree-processing device is used for different tree species, then versatility is improved, but relocation or sorting is required

Engineering Contradiction:
Improvehandling different tree speciesVSAvoidtime for relocation or sorting
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The device incorporates adjustable components including variable cutting blade positions, adjustable splitting wedges, and modifiable grab configurations. These dynamic adjustments allow the same device to accommodate different tree diameters and species without relocation, as the processing parameters can be changed in situ

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP2639026B1Tree processing device
Publication Date: 2015.07.29 HYTAR OY
  • EP2639026B1 patent drawingFigure 1
  • EP2639026B1 patent drawingFigure 2
  • EP2639026B1 patent drawingFigure 3

AI summary

The invention relates to a tree-processing device for making firewood, which includes, - a frame (12), - at least one grab (14), arranged to move over at least part of the length of the said frame (12), for moving trees (100), - a cutting device (16) for cutting trees (100), - a splitting device (18) for splitting trees (100), - support means (20) for supporting the frame (12) against the ground, and - suspension means (22) for suspending the tree-processing device from the boom of a work machine. The cutting device (16) is a double-bladed guillotine (82).