Safety rope for climbing and manufacturing method therefor
AssigneeSociete Anonyme de Droit Francais Dite : Ets Beal
InventorMichel Beal
Life of this patent
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Abstract
A climbing rope composed of a core of strands surrounded by a braided tubular sheath, whereby the tightness of the sheath determines the stiffness of flexibility of the rope. Most of the rope is flexible because its sheath is loose, while, near its end intended for creating the tying knot, there is a stiff section, i.e., a section whose sheath is tighter than along the rest of the rope. The stiff section is abrasion resistant where the climbing rope passes through the piton closest to the climber.
Claims6
Safety rope for climbing, comprising a core of strands surrounded by a braided tubular sheath, the tightness of the sheath determining the degree of stiffness or flexibility of the rope, said rope having its greater part flexible because of a looseness of the sheath and having near an end intended for creating a tying knot a stiff section whose sheath is tighter than said greater part and said end for said tying knot of said rope.
A method for manufacturing a climbing rope comprising the steps of:
- bundling a core of elongated strands;
- enclosing said elongated strands in a braided sheath;
- adjusting the tightness of said braided sheath to create alternating lengths of loosely braided flexible rope sections and tightly braided stiff sections;
- cutting said alternating lengths to create said climbing ropes containing a flexible knot tying section, a stiff abrasion resistant section, and a flexible climbing section;
- and
- finishing each rope end to prevent fraying.
Dependencies are inferred from the claim text.