Shielded pipe for a vehicle

Patent metadata

Field	Value
Publication number	US-9550461-B2
Application number	US-201415022741-A
Country	US
Kind code	B2
Filing date	Sep 16, 2014
Priority date	Oct 4, 2013
Publication date	Jan 24, 2017
Grant date	Jan 24, 2017

Abstract

A weight can be reduced, and a desired bent shape can be easily obtained with the shielded pipe of the present application. An electric wire that connects a battery and an inverter is inserted into a shielded pipe arranged underneath a floor of a vehicle. The shielded pipe has a pipe body that is made of a synthetic resin material and shaped into a predetermined shape. After the pipe body is shaped, a shielding portion is formed by spirally winding a ribbon-shaped metal foil around the outer circumferential surface of the pipe body. Furthermore, the shielding portion is inserted into a heat-shrinkable tube. The heat-shrinkable tube is heated and covers the outer circumferential surface of the shielding portion in a tight contact state, thus constituting a protective portion for protecting the shielding portion.

First claim

The invention claimed is:

1. A shielded pipe for a vehicle, the shielded pipe being configured to receive an electric wire, and the shielded pipe comprising:
a pipe body made of a synthetic resin material;
a shielding portion formed by winding a plurality of sheet-like metal foils around an outer circumferential surface of the pipe body; and
a protective portion formed on an outer circumference of the shielding portion, wherein
the shielding portion is formed by winding the plurality of sheet-like metal foils around the pipe body with the sheet-like metal foils being successively seamed together; the plurality of the sheet-like metal foils differ in a width dimension; the pipe body includes a straight region and a bent region;
the pipe body includes a straight region and a bent region;
the sheet-like metal foils having a longer width are wound around the straight region; and
the sheet-like metal foils having a shorter width are wound around the bent region.

2. The shielded pipe according to claim 1 , wherein the protective portion is a heat-shrinkable tube that sheathes the pipe body.

3. The shielded pipe according to claim 1 , wherein the protective portion is a film that is laminated on the outer circumferential surface of the shielding portion, the film having a rustproofing function.

Assignees

• Sumitomo Wiring Systems

Inventors

• Nakai Hirokazu
• Maruchi Takeo

Classifications

• H01B11/1025

  composed of a helicoidally wound tape-conductor · CPC title

• H01B9/023

  composed of helicoidally wound tape-conductors · CPC title

• B60R16/0215 Primary

  Protecting, fastening and routing means therefor · CPC title

• H01B3/30

  plastics; resins; waxes · CPC title

• H02G3/06

  Joints for connecting lengths of protective tubing {or channels}, to each other or to casings, e.g. to distribution boxes; Ensuring electrical continuity in the joint · CPC title