# US 2025/0095877 A1 · Cable

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- Number: US 2025/0095877 A1
- Document ID: US20250095877A1
- Status: Published application
- Kind: A1
- Application number: 18/832,689
- Filed: 2022-02-17
- Published: 2025-03-20
- Earliest claimed: 2022-02-17
- Assignees: Sumitomo Electric Industries, Ltd.; Autonetworks Technologies, Ltd.; Sumitomo Wiring Systems, Ltd.
- Applicants: Sumitomo Electric Industries, Ltd.; AutoNetworks Technologies, Ltd.; Sumitomo Wiring Systems, Ltd.
- Inventors: Takumi OOSHIMA; Hirokazu KOMORI; Takahiro MURATA
- Web page: https://patentgrep.com/patent/US20250095877A1

## CPC

- H01B 7/0216: {Two layers}
- H01B 7/18: {Protection against damage caused} by wear, mechanical force or pressure; {Sheaths; Armouring}
- H01B 7/00: Insulated conductors or cables characterised by their form
- H01B 7/02: Disposition of insulation
- H01B 7/04: Flexible cables, conductors, or cords, e.g. trailing cables
- H01B 7/1875: {Multi-layer sheaths}
- 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})

## Abstract

A cable includes a plurality of coated electric wires and a sheath covering the plurality of coated electric wires, wherein the sheath includes a first sheath and a second sheath in order from an outer surface side, and wherein the second sheath has a smaller elastic modulus than the first sheath.

## Claims

### Claim 1

A cable comprising:
a plurality of coated electric wires; and
a sheath covering the plurality of coated electric wires,
wherein the sheath includes a first sheath and a second sheath in order from an outer surface side of the sheath,
wherein the second sheath has a smaller elastic modulus than the first sheath, and
wherein elastic modulus refers to tensile elastic modulus measured at 23° C.

### Claim 2 (depends on 1)

The cable as claimed in claim 1, wherein the elastic modulus of the second sheath is 40% to 80% of the elastic modulus of the first sheath.

### Claim 3 (depends on 1)

The cable as claimed in claim 1, wherein the first sheath has an elastic modulus of 33 MPa to 55 MPa.

### Claim 4 (depends on 1)

The cable as claimed in claim 1, wherein the second sheath is a foam.

### Claim 5 (depends on 1)

The cable as claimed in claim 1, wherein the plurality of coated electric wires include coated electric wires having different conductor cross-sectional areas.

### Claim 6 (depends on 1)

The cable as claimed in claim 1, wherein the plurality of coated electric wires include two coated electric wires having a same conductor cross-sectional area, and the two coated electric wires are twisted together.

### Claim 7 (depends on 1)

The cable as claimed in claim 1, wherein in a cross-section perpendicular to a longitudinal direction, a roundness of an outer perimeter of the second sheath is 97% or more.