Post-fitting shield member, shielded wire, manufacturing method of shielded wire, and manufacturing method of post-fitting shield member

1. A post-fitting shield member to be post-fitted with an electric wire comprising:

a plated fiber bundle with metal plating on a high-strength fiber member,

wherein the plated fiber bundle is wound in a coil shape, and

wherein the high-strength fiber member is larger than or equal to 1 GPA in breaking tensile strength and is from 1% to 10% in breaking extension ratio.

2. The post-fitting shield member according to claim 1 , wherein the plated fiber bundle is thin and flat, and has a flat surface being one of an upper surface and a bottom surface in a thickness direction of the plated fiber bundle, the flat surface facing a center line of the coil shape.

3. The post-fitting shield member according to claim 1 , wherein in state that the plated fiber bundle is wound on the electric wire spirally, d 2 ={(πD) 2 +P 2 }/π 2 is satisfied,

where d is an inner diameter of the plated fiber bundle,

D is an outer diameter of the electric wire, and

P is a pitch P after the post-fitting shield member is post-fitted with the electric wire.

4. A shielded wire comprising:

the post-fitting shield member according to claim 1 ; and

an electric wire which is inserted in the post-fitting shield member having the coil shape,

wherein the post-fitting shield member is in a state that it is elongated so as to be longer than its natural length and wound on the electric wire spirally.

5. The shielded wire according to claim 4 , wherein TN/πD≥0.5 is satisfied,

where T is the width of each plated fiber bundle,

N is a number of plated fiber bundles, and

D is the outer diameter of the electric wire.

6. A manufacturing method of a shielded wire comprising:

an insertion step of inserting an electric wire into the post-fitting shield member according to claim 1 having the coil shape;

a first fixing step of fixing one end portion of the post-fitting shield member into which the electric wire was inserted in the insertion step;

an expansion step of expanding the post-fitting shield member that was fixed in the first fixing step toward a side of another end portion of the post-fitting shield member; and

a second fixing step of fixing the other end portion of the post-fitting shield member that was expanded in the expansion step.

7. A manufacturing method of a post-fitting shield member comprising:

a plating step of performing metal plating on a high-strength fiber member;

a heat treatment step of winding a plated fiber bundle obtained by the plating step into a coil shape and subjecting the wound plated fiber bundle to heat treatment of a prescribed temperature or higher and a prescribed time or longer; and

a cooling step of cooling the wound plated fiber bundle as subjected to the heat treatment.