Partition-attached shield pipe and wire protection structure for end section thereof

Patent metadata

Field	Value
Publication number	US-8987601-B2
Application number	US-201113991958-A
Country	US
Kind code	B2
Filing date	Oct 20, 2011
Priority date	Mar 28, 2011
Publication date	Mar 24, 2015
Grant date	Mar 24, 2015

Abstract

A plurality of wires are prevented from being damaged from contact with an edge of an end portion of a shield pipe through which the wires are inserted. A shield pipe through which a wire harness including a plurality of wires routed in a hybrid automobile or an electric automobile has partition walls separating the plurality of inserted wires one by one and projecting continuously in an axis direction of the pipe from an inner surface of a peripheral wall of a pipe main body. The partition walls corresponding to the number of wires inserted through the shield pipe are provided radially in a cross section. Each of the partition walls has at least one bending portion extending in the axis direction of the pipe.

First claim

The invention claimed is:

1. A partitioned shield pipe through which a wire harness having a plurality of wires routed in one of a hybrid automobile and an electric automobile is inserted, the shield pipe comprising:
a plurality of partition walls separating the plurality of wires one by one and integrally projecting radially in a cross section from an inner surface of a peripheral wall of a metal pipe main body,
the partition walls extending in an axis direction and each having at least one bending portion in a middle position in a diameter direction of the partition wall, the bending portion extending in the axis direction; wherein either
a rubber stopper press-fit space is defined by positioning end positions of the partition walls further inward than an end position of the peripheral wall of the pipe main body to provide a space from the end position of the peripheral wall to the end positions of the partition walls such that a rubber stopper attached to the wires is press-fitted; or
ends of partition wall central portions ranging from the radial center position to the bending portions of the partition walls project axially further than partition wall outer portions ranging from the bending portions to the peripheral wall of the pipe main body and further than an end of the peripheral wall of the pipe main body, such that the wires are bundled by a bundling band.

2. The partitioned shield pipe according to claim 1 , wherein
the partition walls provided radially in the cross section have a center axis of the shield pipe as a radial center position and the bending portion of the partition wall has an obtuse angle, and
two adjacent partition walls and the peripheral wall of the shield pipe define an insertion space for each of the wires, the insertion space having an identical cross-sectional shape.

3. The partitioned shield pipe according to claim 1 , wherein the peripheral wall of the pipe main body and the partition walls are integrally formed by extrusion-molding of a metal.

4. The partitioned shield pipe according to claim 1 , further comprising:
a resin protection cover attached to jointly cover an end portion of the pipe main body and end portions of the partition walls.

5. The partitioned shield pipe according to claim 4 , wherein the protection cover is fixated to the end portion of the pipe main body by engaging a lock portion and a locked portion.

6. A wire protection structure for an end portion of a partitioned shield pipe, wherein
a rubber stopper through which wires pulled out from the partitioned shield pipe are passed is press-fitted in a rubber stopper press-fit space provided at end positions of the partition walls of the partitioned shield pipe according to claim 1 .

7. A wire protection structure for an end portion of a partitioned shield pipe, wherein wires pulled out from the partitioned shield pipe according to claim 1 are bundled by a bundling band in a condition in which the wires are in contact with the partition wall central portions projecting axially further than the partition wall outer portions of the partition walls and the end of the peripheral wall of the pipe main body of the shield pipe.

8. The wire protection structure for the end portion of the partitioned shield pipe according to claim 7 , wherein
a projection size of the partition wall central portion is greater than a band width of the bundling band, and
a size in a diameter direction of the pipe of the partition wall central portion is defined such that the bundling band bundling the wires is not in contact with a side end edge of the projecting partition wall central portion.

Assignees

• Shiga Kouki
• Sugino Hidetoshi
• Sumitomo Wiring Systems

Inventors

• Shiga Kouki
• Sugino Hidetoshi

Classifications

• H02G3/0418

  Covers or lids; Their fastenings · CPC title

• H01B17/583 Primary

  Grommets; Bushings · 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

• H02G3/0481

  with a circular cross-section (H02G3/0468, H02G3/0475 take precedence) · CPC title

• B60R16/0215 Primary

  Protecting, fastening and routing means therefor · CPC title