# US 2017/0256336 A1 · Shielded electric wire and wire harness

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- Number: US 2017/0256336 A1
- Document ID: US20170256336A1
- Status: Published application
- Kind: A1
- Application number: 15/434,549
- Filed: 2017-02-16
- Published: 2017-09-07
- Earliest claimed: 2016-03-01
- Assignees: Yazaki Corporation
- Applicants: Yazaki Corporation
- Inventors: Tomomi TAKIGUCHI; Yoshihiko SATO
- Web page: https://patentgrep.com/patent/US20170256336A1

## CPC

- H01B 7/282: Preventing penetration of fluid {, e.g. water or humidity,} into conductor or cable
- B60R 16/0215: {Protecting, fastening and routing means therefor}
- H01B 7/0045: {Cable-harnesses}
- B60R 16/0207: {Wire harnesses}
- Y02A 30/14: Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
- H01B: CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES (selection for magnetic properties H01F1/00; waveguides H01P {; printed circuits H05K})
- B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- Y02A: TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE

## Abstract

A shielded electric wire includes electric wires, a shielding member that covers peripheries of the electric wires, a viscoelastic body that covers the peripheries of the electric wires, a sheet member having first and second sheet member covering peripheries of the shielding member and the viscoelastic body, and a protecting member provided around the sheet member. The first and second sheet members are pasted onto the shielding member and the viscoelastic body so that a pasted portion protruding in a width direction is formed. A force of adhesion of the viscoelastic body to the plurality of electric wires and the adhesive layers of the first and second sheet member is not less than 0.59 N/10 mm. A force of adhesion of the adhesive layers of the first and second sheet members to the viscoelastic body is not less than 0.59 N/10 mm.

## Claims

### Claim 1

A shielded electric wire, comprising:
a plurality of electric wires;
a shielding member that covers peripheries of the plurality of electric wires;
a viscoelastic body attached between end portions of the plurality of electric wires and the shielding member and that covers the peripheries of the plurality of electric wires;
a sheet member that covers peripheries of the shielding member and the viscoelastic body; and
a protecting member provided around the sheet member,
wherein the sheet member comprises a first sheet member and a second sheet member;
wherein adhesive layers are formed on one surfaces of the first and second sheet members respectively, and are pasted onto the shielding member and onto the viscoelastic body so as to face to each other so that a pasted portion in which the adhesive layers at one end portions of the first and second sheet members protruding in a width direction are pasted together is formed, the width direction being substantially perpendicular to an extending direction of the plurality of electric wires;
wherein a force of adhesion of the viscoelastic body to the plurality of electric wires and the adhesive layers of the first and second sheet member is not less than 0.59 N/10 mm;
wherein a force of adhesion of the adhesive layers of the first and second sheet members to the viscoelastic body is not less than 0.59 N/10 mm; and
wherein a width of the pasted portion of the first and second sheet member is not less than 0.88 mm.

### Claim 2 (depends on 1)

The shielded electric wire according to claim 1, wherein the adhesive layers of the first and second sheet members are pasted onto the shielding member and onto the viscoelastic body so as to face to each other so that another pasted portion in which the adhesive layers at the other end portions of the first and second sheet members protruding in a direction opposite to the width direction is formed; and
wherein a width of the another pasted portion of the first and second sheet member is not less than 0.88 mm.

### Claim 3 (depends on 1)

The shielded electric wire according to claim 1, wherein the other end portions of the first and second sheet members are continuously connected to each other so as to be substantially U-shaped in cross section.

### Claim 4 (depends on 1)

The shielded electric wire according to claim 1, wherein the force of adhesion of the viscoelastic body to the plurality of electric wires and the adhesive layer of the sheet member is not less than 1.79 N/10 mm;
wherein the force of adhesion of the adhesive layers of the first and second sheet members to the viscoelastic body is not less than 1.79 N/10 mm; and
wherein the width of the pasted portion of the sheet member is not less than 2.66 mm.

### Claim 5 (depends on 1)

The shielded electric wire according to claim 1, wherein the viscoelastic body is disposed only between end portions of the plurality of electric wires and the shielding member.

### Claim 6 (depends on 1)

The shielded electric wire according to claim 1, wherein a pullout load when the plurality of electric wires are each pulled out while the viscoelastic body is fixed is not less than 8 N.

### Claim 7 (depends on 1)

A wire harness comprising at least one circuit of the shielded electric wire according to claim 1.