14
Tree care
Tree access
• Double-rope ascent technique:
The arborist ascends his access rope (purple). In case of
a hornet attack (or other problem) he can self-evacuate
with the work rope (blue). A mule knot, or releasable
knot, secures the ZIGZAG. This ascent technique is very
efficient.
ZIGZAG
ASCENTREE
ZIGZAG
SEQUOIA
Movement within the tree:
returning to the trunk
PANTIN
The ZIGZAG is installed on an adjustable
attachment bridge. The bridge is extended,
allowing improved ergonomics when
returning to the trunk. The space created
between the ZIGZAG and the harness
allows pulling with both hands on the free
end of the rope.