Cable and harness with low-melting pet fiber tape
A cable is composed of a plurality of electric wires, a tape member provided over a periphery of the plurality of electric wires, and an outer sheath provided over an outer periphery of the tape member. The tape member includes a mixture of a first fiber having a melting point and a second fiber having a melting point lower than the melting point of the first fiber.
1. A cable, comprising:
a plurality of electric wires;
a tape member being wrapped helically around a periphery of the plurality of electric wires; and
an outer sheath provided over an outer periphery of the tape member,
wherein the tape member comprises a mixture of a first fiber having a melting point and a second fiber having a melting point lower than the melting point of the first fiber,
wherein a content of the second fiber in the tape member is not lower than 10% by mass and not higher than 90% by mass,
wherein the second fiber, included as a component of one part of the tape member, comprises a material configured to be softened or melted at an extrusion molding temperature of the outer sheath and is adhered to an inner peripheral surface of the outer sheath,
wherein the plurality of electric wires includes two first electric wires and a multi-core electric wire,
wherein each of the two first electric wires comprises a first insulating member coating a periphery of a first conductor,
wherein the multi-core electric wire comprises an inner sheath covering two second electric wires together, each of the two second electric wires having a diameter smaller than a diameter of each of the first electric wires and comprising a second insulating member coating a periphery of a second conductor, and
wherein the two first electric wires and the multi-core electric wire are in contact with the tape member.
2. The cable according to claim 1 , wherein the tape member is adhered to the inner peripheral surface of the outer sheath and made integral with the outer sheath.
3. The cable according to claim 1 , wherein the melting point of the first fiber is higher than the extrusion molding temperature of the outer sheath, and the melting point of the second fiber is lower than the extrusion molding temperature of the outer sheath.
4. The cable according to claim 3 , wherein the extrusion molding temperature of the outer sheath is 230 degrees, the melting point of the first fiber is 250 degrees, and the melting point of the second fiber is 220 degrees.
5. The cable according to claim 1 , wherein the first fiber includes a high melting point polyethylene terephthalate (PET) fiber, and the second fiber includes a low melting point PET fiber having a melting point lower than a melting point of the high melting point PET fiber.
6. The cable according to claim 1 , wherein the first fiber and the second fiber are not longer than 5 mm in length.
7. A harness, comprising:
the cable according to claim 1 ; and
a connector attached to an end portion of the plurality of electric wires.
8. The cable according to claim 1 , wherein the inner sheath collectively covers an entirety of the two second electric wires.
9. The cable according to claim 8 , wherein the inner sheath is disposed on an inner surface of the tape member.
10. The cable according to claim 9 , wherein the inner sheath contacts outer surfaces of the two first electric wires.
11. The cable according to claim 9 , wherein the inner sheath abuts an outer surface of each of the two first electric wires.
12. The cable according to claim 1 , wherein an outer diameter of second conductor is less than an outer diameter of the first conductor.
13. The cable according to claim 1 , wherein the inner sheath collectively covers an entirety of outer surfaces of the two second electric wires.
14. The cable according to claim 1 , wherein the tape member is an integral part of the outer sheath such that the tape member is adhered to the outer sheath without an adhesive.
15. The cable according to claim 1 , wherein the content of the second fiber in the tape member is in a range from 20% by mass to 80% by mass.
16. The cable according to claim 1 , wherein the outer sheath comprises a thermoplastic polyurethane.
17. The cable according to claim 1 , wherein the melting point of the first fiber is higher than the extrusion molding temperature of the outer sheath.
18. The cable according to claim 1 , wherein the melting point of the second fiber is lower than the extrusion molding temperature of the outer sheath.
19. The cable according to claim 1 , wherein the inner sheath abuts an inner surface of the tape member.
20. The cable according to claim 1 , wherein an outer surface of the inner sheath contacts an inner surface of the tape member.