Unlike all conventional clutches the Constrictor® system does not
crush the rope between two metal surfaces. Instead, the loaded rope
is held securely
in a textile sock, itself attached to an anchor base. The rope runs freely
through the sock in one direction, but is gripped instantly within the sock
when running out in the opposite direction. This constrictor effect, patented
by COUSIN Trestec, provides increasing holding power as the load increases.
FEATURES of the Constrictor Rope Clutch -
The standard Constrictor® range provides 2x the holding power of conventional
rope clutches, and custom solutions are available with holding power up
to the break load of the rope!
At least 3x lighter than conventional rope clutches.
No Abrasion or Rupture :
The unique textile sock closes like an octopus on the line, providing effective
load distribution and outstanding grip; a result of fibre-to-fibre contact
that is far less aggressive than traditional metal cams.
Safely Release Under Load :
The line can quickly and easily be released under load without the need
of a winch, simply by pulling the control lanyard. This can be an important
safety consideration in situations where immediate release is required.
Remote Release System :
The Dyneema® control lanyard can be extended to provide remote release,
making it ideal for applications such as mast-head mounted halyard to eliminate
mast compression loads and halyard creep.
Constrictor ANATOMY -
Textile Sock :
Braid Orientation: COUSIN Trestec’s experience and expertise in rope
manufacture has guided development of the critical braiding angle to maximise
grip and minimise slippage.
Fibre Assembly: Extensive knowledge of fibres combined with laboratory and
field testing has resulted in an optimal fibre balance and density for unmatched
Treatment: A specialised surface treatment plays a critical role in extending
the product life, boosting grip and reducing abrasion in stress areas.
Bi-conical Titanium Base :
Patented by Cousin, the textile sock element is locked in place between
a titanium ring and the anchoring base. The unique conical geometry allows
easy insertion of the rope, and ensures that the sock is perfectly integrated
with the anchor base in supporting the applied load.
Opening System :
Pulling on the SK75 Dyneema® lanyard retracts the sock, relaxing the
grip on the rope and allowing it to run freely in either direction. The
lanyard can be fixed in the open position using the V-notch in the anchor