Hybrid stranded conductor

• US 10,640,922 B2
• Filed: 07/21/2016
• Issued: 05/05/2020
• Est. Priority Date: 07/23/2015
• Status: Active Grant

• Current Assignee: Teufelberger Seil Gesellschaft M.b.h. (Teufelberger Holding AG)
• Original Assignee: Teufelberger Seil Gesellschaft M.b.h. (Teufelberger Holding AG)
• Inventors: Traxl, Robert, Kaiser, Gunter, Kirth, Rudolf, Ernst, Bjoern, Ruehrnoessl, Erich, Baldinger, Peter
• Primary Examiner(s): Hurley, Shaun R
• Application Number:
  US15/746,517
• Publication Number:
  US 20180209093A1
• Time in Patent Office: 1,384 Days
• CPC Class Codes: D07B 1/005 Composite ropes, i.e. ropes built-up from fibrous or filamentary material and metal wires
• CPC Class Codes: D07B 1/165 characterised by a plastic or rubber inlay
• CPC Class Codes: D07B 2201/2019 pressed to shape
• CPC Class Codes: D07B 2201/2039 three to eight wires or filaments respectively forming a single layer
• CPC Class Codes: D07B 2201/204 nine or more wires or filaments respectively forming multiple layers
• CPC Class Codes: D07B 2201/2041 characterised by the materials used
• CPC Class Codes: D07B 2201/2055 comprising filaments or fibers
• CPC Class Codes: D07B 2205/3025 Steel
• CPC Class Codes: D07B 2401/2015 Killing or avoiding twist
• CPC Class Codes: D07B 2801/12 Strand
• CPC Class Codes: D07B 5/007 comprising postformed and thereby radially plastically deformed elements
• CPC Class Codes: D07B 7/027 Postforming of ropes or strands
• CPC Class Codes: H01B 13/0207 Details; Auxiliary devices
• CPC Class Codes: H01B 5/104 composed of metallic wires, e.g. steel wires

Abstract

A hybrid strand includes a core and outer wires arranged around the core, wherein at least a part of the outer wires is compressed, wherein the compressed outer wires include a flattened cross-sectional shape, the outer wires are composed of steel, and the core is a fiber core. A corresponding production method produces such a hybrid strand.

Claims

1. Hybrid strand comprising a core and outer wires arranged around said core,

wherein at least a part of the outer wires is compressed, the compressed outer wires comprise a flattened cross-sectional shape, the outer wires are composed of steel and the core is a fiber core,

wherein a first compressed outer wire is spaced apart from an adjacent compressed outer wire, and

wherein a lateral flattened area of the first compressed outer wire faces a lateral flattened area of the adjacent compressed outer wire at a distance.

2. Hybrid strand according to claim 1, wherein the compressed outer wires comprise a trapezoidal or circular-segment-shaped cross-section.

3. Hybrid strand according to claim 1, wherein the distance between the facing flattened areas is constant at least in sections.

4. Rope comprising several hybrid strands according to claim 1.

5. Rope according to claim 4 in the form of an anti-twist rope.

6. Method for the production of a hybrid strand, wherein outer wires made of steel are wrapped and compressed around a fiber core,

wherein the outer wires during compression contact each other in a lateral contact area,

wherein after compression at least a part of the outer wires comprises a flattened cross-sectional shape in the contact area,

wherein the outer wires support each other in a vault-like manner during the compression, and

wherein the outer wires are pressed against the fiber core during compression prior to the vault formation and spring back to a corresponding extent after compression, so that the deformed outer wires of the compressed hybrid strand are spaced apart.