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Cut-to-Length Harvester head for multi tree processing

IP.com Disclosure Number: IPCOM000237816D
Publication Date: 2014-Jul-15
Document File: 1 page(s) / 14K

Publishing Venue

The IP.com Prior Art Database

Related Documents

P21984: IP.COM

Abstract

There is a new requirement for forestry machines to process more than one tree at a time. For this to work, the operator needs to select similar already harvested trees from the ground and hold an individual tree in the head while another is selected.

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Cut-to-Length Harvester head for multi tree processing

There is a new requirement for forestry machines to process more than one tree at a time. For this to work, the operator needs to select similar already harvested trees from the ground and hold an individual tree in the head while another is selected.

Many tree harvester heads have lower knives fitted. These knives are normally used to either remove limbs from the tree or add stability to the tree while crosscutting and falling.

Currently, a forestry machine operator has to either hold the trees with the  delimb knifes or with the drive rollers of the head while trying to select another stem. This design requires considerable skill from the operator because he has to clamp the tree to retain it in the head (normally with the drive rollers) then allow the knives to open to collect the additional tree while not dropping the log. To do this he has to flick the drive arms open at the exact moment the tree gets near the rollers

The issue with the current configuration is that the operator has to open the knives and/or rollers to pick up the tree while simultaneously holding a tree in the head

This solution solves this problem by having one or more flicking accumulator knives holding the tree in the head while maintaining the ability to open the delimb knives to pick up another tree

The accumulator arm allows the single previously tree to be held while the operator uses the delimb knives to select and pick up another tree. Th...