Cable and cable pulling method

Patent metadata

Field	Value
Publication number	US-9608426-B2
Application number	US-201114354606-A
Country	US
Kind code	B2
Filing date	Oct 28, 2011
Priority date	Oct 28, 2011
Publication date	Mar 28, 2017
Grant date	Mar 28, 2017

Abstract

The cable ( 1 ) includes a cable outer sheath ( 12 ) surrounding a cable core ( 11 ) and at least a ring ( 21, 23, 25, 28, 30 ) surrounding partly the cable outer sheath ( 12 ) so that the ring ( 21, 23, 25, 28, 30 ) presses the cable outer sheath ( 12 ) on the cable core ( 11 ) in a way adapted to increase a transfer, on the cable core ( 11 ), of a pulling effort exerted on the cable outer sheath ( 12 ).

First claim

The invention claimed is:

1. A cable, comprising:
a cable outer sheath surrounding a cable core comprising fibers; and
at least a ring surrounding partly said cable outer sheath so that said ring presses said cable outer sheath on said cable core in a way adapted to increase a transfer of a pulling effort exerted on said cable outer sheath to said cable core,
wherein the cable core includes internal elements which are loose with respect to one another at a position along the cable where there is no ring on the cable outer sheath and which are tight with respect to one another at a position along the cable where there is a ring on the cable outer sheath.

2. The cable according to claim 1 , wherein said ring surrounds partly a cable end outer sheath.

3. The cable according to claim 2 , wherein said ring is shrunk on said cable outer sheath.

4. The method according to claim 3 , wherein said ring is shrunk on said cable outer sheath in such a way that said ring external diameter is reduced by at least 5.

5. The cable according to claim 2 , wherein said ring is shrunk on said cable outer sheath in such a way that said ring external diameter is reduced by at least 5%.

6. The cable according to claim 2 , wherein said ring is shrunk on said cable outer sheath in such a way that said ring external diameter is reduced by at least 10%.

7. The cable according to claim 1 , wherein at least two rings surround partly said cable outer sheath so that said rings press said cable outer sheath on said cable core in a way adapted to increase a transfer of a pulling effort exerted on said cable outer sheath to said cable core.

8. The cable according to claim 7 , wherein a distance between at least two of said rings, ranges from 10 cm to 100 cm.

9. The cable according to claim 7 , wherein a distance between at least two of said rings, ranges from 20 cm to 60 cm.

10. The cable according to claim 1 , wherein at least one of said rings presents a width which is at least three times larger than the width of another of said rings.

11. The cable according to claim 1 , wherein the thickness of said ring or of one or more or all of said rings, ranges from 1 mm to 5 mm.

12. The cable according to claim 1 , wherein the width of said ring or of one or more or all of said rings, ranges from 10 mm to 40 mm.

13. The cable according to claim 1 , wherein a distance between at least two of said rings, ranges from 5 mm to 50 mm.

14. The cable according to claim 1 , wherein said ring is made of ductile material.

15. The cable according to claim 1 , wherein said ring is made of metal and preferably is made of aluminum or copper, or is made of steel.

16. The cable according to claim 1 , wherein at least three rings surround partly said cable outer sheath so that said rings press said cable outer sheath on said cable core in a way adapted to increase a transfer of a pulling effort exerted on said cable outer sheath to said cable core.

17. The cable according to claim 1 , wherein at least four rings surround partly said cable outer sheath so that said rings press said cable outer sheath on said cable core in a way adapted to increase a transfer of a pulling effort exerted on said cable outer sheath to said cable core.

18. A method for cable puffing, comprising:
pulling a pulling element fixed on a cable end comprising a cable outer sheath surrounding a cable core comprising optical fibers and at least a ring surrounding partly said cable outer sheath so that said ring presses said cable outer sheath on said cable core so that a transfer of a pulling effort exerted on said cable outer sheath to said cable core, is increased,
wherein the cable core includes internal elements which are loose with respect to one another at a position along the cable where there is no ring on the cable outer sheath and which are tight with respect to one another at a position along the cable where there is a ring on the cable outer sheath.

19. The method of cable pulling according to claim 18 , wherein said pulling element shrinks on said cable end when said pulling element is pulled.

20. The method of cable pulling according to claim 19 , wherein said pulling element is a pulling eye fixed to a pulling grip.

Assignees

• Tatat Olivier
• Lavenne Alain
• Bonicel Jean-Pierre
• Draka Comteq Bv

Inventors

• Tatat Olivier
• Lavenne Alain
• Bonicel Jean-Pierre

Classifications

• H02G15/007 Primary

  Devices for relieving mechanical stress · CPC title

• H02G1/081

  using pulling means at cable ends, e.g. pulling eyes or anchors · CPC title

• G02B6/54

  using mechanical means, e.g. pulling or pushing devices · CPC title

• G02B6/4465

  Physics · mapped topic

• G02B6/545

  Pulling eyes (G02B6/475 takes precedence) · CPC title