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US 9,896,799 B2Granted
Cable and method for monitoring a cable
AssigneeCabin Air Group B.V.
InventorRinze Jan Van Der Schuit
Life of this patent
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Abstract
A cable 1 comprises a first thimble 2 and a second thimble 4, at least one yarn 6, and at least a first conductive fiber 8 for monitoring the cable 1. The yarn 6 extends from the first thimble 2 to the second thimble 4, turns around the second thimble 4, extends from the second thimble 4 to the first thimble 2, and turns around the first thimble 2. Each thimble holds a stack 9 of layers 10 of turns of the yarn 6. The first conductive fiber 8 is designed to signal the wear of the yarn 6 by breaking after a predetermined portion of the turns of the yarn 6 breaks. The first conductive fiber 8 is positioned at the first thimble 2 between the turns of the yarn 6 at less than 50% of the stack height h.
Claims14
A cable (1), comprising:
- a first thimble (2) and a second thimble (4), at least one yarn (6), and at least a first conductive fibre (8) for monitoring the cable (1), wherein
- the first thimble (2) and the second thimble (4) are provided at opposite ends of the cable (1),
- the at least one yarn (6) extends from the first thimble (2) to the second thimble (4), turns around the second thimble (4), extends from the second thimble (4) to the first thimble (2), and turns around the first thimble (2), such that
- the at least one yarn (6) forms a turn around the first and second thimbles (2, 4), and
- each thimble (2, 4) holds a stack (9) of layers (10) of turns of the at least one yarn (6), wherein an inside of the stack (12) is defined as a side of a first layer of turns of the at least one yarn (6) being closest to a centre (14) of the respective thimble, an outside of the stack (16) is defined as a side of a last layer of turns of the at least one yarn (6) being farthest away of the centre (14) of the respective thimble, and a stack height (h) is defined as the distance from the inside of the stack (12) to the outside of the stack (16), wherein,
- the cable (1) comprises a plurality of conductive fibres (8, 18, 108, 118), which conductive fibres (8, 18, 108, 118) are different from the at least one yarn (6), wherein at least two of the plurality of conductive fibres (8, 108) are positioned in the stack (9) of layers (10) of the first thimble (2) between the turns of the at least one yarn (6) at a first predetermined height (h1) measured from the inside of the stack (12), spaced apart from each other in a width direction of the first thimble (2), wherein the first predetermined height (h1) is less than 50% of the stack height (h).
3 more elements
A method for monitoring a cable, comprising the steps of:
- (i) providing a cable (1) said cable (1) comprising:
- a first thimble (2) and a second thimble (4), at least one yarn (6), and at least a first conductive fibre (8) for monitoring the cable (1), wherein
- the first thimble (2) and the second thimble (4) are provided at opposite ends of the cable (1),
- the at least one yarn (6) extends from the first thimble (2) to the second thimble (4), turns around the second thimble (4), extends from the second thimble (4) to the first thimble (2), and turns around the first thimble (2), such that
- the at least one yarn (6) forms a turn around the first and second thimbles (2, 4), and
- each thimble (2, 4) holds a stack (9) of layers (10) of turns of the at least one yarn (6), wherein an inside of the stack (12) is defined as a side of a first layer of turns of the at least one yarn (6) being closest to a centre (14) of the respective thimble, an outside of the stack (16) is defined as a side of a last layer of turns of the at least one yarn (6) being farthest away of the centre (14) of the respective thimble, and a stack height (h) is defined as the distance from the inside of the stack (12) to the outside of the stack (16), wherein,
- the cable (1) further comprises a plurality of conductive fibres (8, 18, 108, 118) which are different from the at least one yarn (6) and which are adapted to signal wear of the at least one yarn (6) by breaking after a predetermined portion of the turns of the at least one yarn (6) breaks, wherein at least two of the plurality of conductive fibres (8, 108) are positioned in the stack (9) of layers (10) of the first thimble (2) between the turns of the at least one yarn (6) at a first predetermined height (h1) measured from the inside of the stack (12), and spaced apart from each other in a width direction of the first thimble (2), wherein the first predetermined height (h1) is less than 50% of the stack height (h);
- (ii) measuring whether the at least two conductive fibres (8, 108) are still conductive;
- (iii) if at least two conductive fibres (8, 108) are both conductive, repeating the measuring after a predetermined amount of time;
- and
- (iv) if either one or both of the at least two conductive fibres (8, 108) is not conductive anymore, stop using the cable within a replacement period or immediately.
8 more elements
Dependencies are inferred from the claim text.