ROPE MADE OF TEXTILE FIBRE MATERIAL

• US 20170328001A1
• Filed: 10/28/2015
• Published: 11/16/2017
• Est. Priority Date: 11/05/2014
• Status: Active Grant

• Current Assignee: Teufelberger Fiber Rope GmbH (Teufelberger Holding AG)
• Original Assignee: Teufelberger Fiber Rope GmbH (Teufelberger Holding AG)
• Inventors: Kirth, Rudolf, Ernst, Bjrn, Rhrnssl, Erich, Traxl, Robert, Baldinger, Peter, Kaiser, Gunter
• Granted Patent: US 10,472,765 B2
• Time in Patent Office: Days
• CPC Class Codes: B66B 7/06 Arrangements of ropes or cables
• CPC Class Codes: D07B 1/025 comprising high modulus, or high tenacity, polymer filaments or fibres, e.g. liquid-crystal polymers
• CPC Class Codes: D07B 1/0633 having a multiple-layer configuration
• CPC Class Codes: D07B 1/08 the layers of which are formed of profiled interlocking wires, i.e. the strands forming concentric layers D07B1/0606 takes precedence
• CPC Class Codes: D07B 1/162 characterised by a plastic or rubber enveloping sheathing
• CPC Class Codes: D07B 2201/1016 characterised by the use of different strands
• CPC Class Codes: D07B 2201/1036 nine or more strands respectively forming multiple layers
• CPC Class Codes: D07B 2201/108 Cylinder winding, i.e. S/Z or Z/S
• CPC Class Codes: D07B 2201/1084 Different twist pitch
• CPC Class Codes: D07B 2201/2044 comprising polymers
• CPC Class Codes: D07B 2201/2087 being of the coated type
• CPC Class Codes: D07B 2201/2089 comprising wrapped structures
• CPC Class Codes: D07B 2201/209 comprising braided structures
• CPC Class Codes: D07B 2205/2014 High performance polyolefins, e.g. Dyneema or Spectra
• CPC Class Codes: D07B 2205/2042 High performance polyesters, e.g. Vectran
• CPC Class Codes: D07B 2205/205 Aramides
• CPC Class Codes: D07B 2205/2096 Poly-p-phenylenebenzo-bisoxazole [PBO]
• CPC Class Codes: D07B 2401/2015 Killing or avoiding twist
• CPC Class Codes: D07B 2401/2055 Improving load capacity
• CPC Class Codes: D07B 2501/2007 Elevators
• CPC Class Codes: D07B 2501/2015 : Construction industries
• CPC Class Codes: D07B 2801/10 : Smallest filamentary entity of a rope or strand, i.e. wire, filament, fiber or yarn
• CPC Class Codes: D07B 2801/24 : Rope
• CPC Class Codes: D07B 5/005 : characterised by their outer shape or surface properties
• CPC Class Codes: D07B 5/006 : by the properties of an outer surface polymeric coating
• CPC Class Codes: D07B 5/007 : comprising postformed and thereby radially plastically deformed elements
• CPC Class Codes: D07B 5/12 : of low twist or low tension by processes comprising setting or straightening treatments

Abstract

The invention relates to a rope (1) made of textile fibre material, which is characterized by the combination of features whereby

a) the load-bearing fibre material of the rope (1) consists of high-strength synthetic fibres

b) the rope (1) is in the form of a spiral strand rope

c) the rope (1) has at least two, preferably at least three concentric load-bearing strand layers (3,4,5)

d) the individual strands (7,8,9,10,11,12) of the strand layers (3,4,5) are movable with respect to one another

e) the degree of filling of the rope (1) with textile fibre material is ≧75%, preferably ≧85%

f) the outermost ply (5,6) of the rope has a coefficient of frictionμ with respect to steel of μ<0.15.

Claims

1. A rope made of textile fibre material, characterized by the combination of features whereby:

a) the load-bearing fibre material of the rope consists of high-strength synthetic fibres;

,

b) the rope is in the form of a spiral strand rope;

c) the rope has at least two concentric load-bearing strand layers.

d) the individual strands of the strand layers are movable with respect to one another;

e) the degree of filling of the rope with textile fibre material is ≧

75%; and

f) the outermost ply of the rope has a coefficient of friction μ

with respect to steel of μ

<

0.15.

2. A rope according to claim 1, characterized in that the rope is surrounded by a sheath, wherein the sheath has a coefficient of friction μ

with respect to steel of μ

<

0.15.

3. A rope according to claim 1, characterized in that the strand layers are aligned with each other such that the rope is essentially non-twisting under load.

4. A rope according to claim 1, characterized in that the ratio of the length of lay of one of the strand layers to the length of lay of the strand layer adjacent in the direction of the rope centre is less than 1.5.

5. A rope according to claim 1, characterized in that the fibre material of the rope is compacted.

6. A rope according to claim 1, characterized in that the fibre material of the rope is stretched by more than 15% of its breaking force.

7. A rope according to claim 1, characterized in that the load-bearing strands of the rope are each provided individually with a sheathing.

8. A method of using the rope according to claim 1 comprising using the rope as a load rope for applications involving a drum drive.

9. A rope according to claim 1, characterized in that the rope has at least three concentric load-bearing strand layers.

10. A rope according to claim 1, characterized in that the degree of filling of the rope with textile fibre material is ≧

85%.

11. A rope according to claim 4, characterized in that the ratio of the length of lay of one of the strand layers to the length of lay of the strand layer adjacent in the direction of the rope centre is 0.7 to 1.0.

12. A rope according to claim 4, characterized in that the ratio of the length of lay of one of the strand layers to the length of lay of the strand layer adjacent in the direction of the rope centre is 0.8 to 0.9.

13. A rope according to claim 6, characterized in that the fibre material of the rope is stretched by 35% to 55% of its breaking force.