Corrugated tube holding structure and electric wire protection component

Patent metadata

Field	Value
Publication number	US-2026024969-A1
Application number	US-202519238871-A
Country	US
Kind code	A1
Filing date	Jun 16, 2025
Priority date	Jul 18, 2024
Publication date	Jan 22, 2026
Grant date	—

Abstract

A corrugated tube holding structure includes a pair of holding members that hold a terminal of a corrugated tube in an assembled state. The pair of holding members includes holding portions that sandwich and hold the terminal of the corrugated tube at an outer peripheral face. The pair of holding portions includes holding ribs provided with semi-arcuate portions concentrically inserted into the valley portion at the outer peripheral face, the holding rib being a protrusion protruding from the inner wall face for each of a plurality of valley portions of the corrugated tube at the outer peripheral face. One of the holding portion includes a tube expanding protrusion on the inner wall face, the tube expanding protrusion being inserted into a slit of the corrugated tube in the assembled state and expanding one end and another end of the terminal of the corrugated tube in a circumferential direction.

First claim

What is claimed is:

1 . A corrugated tube holding structure comprising:
a pair of holding members that holds a terminal of a corrugated tube in an assembled state, wherein the corrugated tube is formed in a bellows tube shape having annular valley portions and crest portions alternately disposed in a tube axis direction and a slit cut in the tube axis direction, the pair of holding members includes holding portions that sandwich and hold the terminal of the corrugated tube at an outer peripheral face of the corrugated tube, each of the pair of holding portions includes a holding rib provided with a semi-arcuate portion concentrically inserted into the valley portion at the outer peripheral face, the holding rib being a protrusion protruding from an inner wall face for each of the plurality of valley portions at the outer peripheral face, and one of the holding portions includes a tube expanding protrusion on the inner wall face, the tube expanding protrusion being inserted into the slit in an assembled state and expanding one end and another end of the terminal of the corrugated tube in a circumferential direction viewed from the slit to expand the terminal of the corrugated tube.

2 . The corrugated tube holding structure according to claim 1 , wherein
the tube expanding protrusion expands the terminal of the corrugated tube to increase a hooking margin of the pair of semi-arcuate portions in the valley portion at the outer peripheral face.

3 . The corrugated tube holding structure according to claim 1 , wherein
the tube expanding protrusion is inserted into the slit at the crest portion at the outer peripheral face.

4 . The corrugated tube holding structure according to claim 2 , wherein
the tube expanding protrusion is inserted into the slit at the crest portion at the outer peripheral face.

5 . An electric wire protection component comprising:
a corrugated tube having annular valley portions and crest portions alternately disposed in a tube axis direction and a slit cut in the tube axis direction, the corrugated tube having a bellows tube shape through which a plurality of electric wires is inserted; a housing that accommodates the plurality of electric wires pulled out from a terminal of the corrugated tube, and pulls the plurality of electric wires outward; and a cover that holds the terminal of the corrugated tube with the housing in an assembled state, and covers the plurality of electric wires pulled out from the terminal of the corrugated tube with the housing in the assembled state, wherein the housing and the cover include holding portions that sandwich and hold the terminal of the corrugated tube at an outer peripheral face of the corrugated tube, the pair of holding portions includes holding ribs provided with semi-arcuate portions concentrically inserted into the valley portions at the outer peripheral face, the each holding rib being a protrusion protruding from an inner wall face toward the outer peripheral face for each of the plurality of valley portions, and one of the holding portions includes a tube expanding protrusion on the inner wall face, the tube expanding protrusion being inserted into the slit in an assembled state and expanding one end and another end of the terminal of the corrugated tube in a circumferential direction viewed from the slit to expand the terminal of the corrugated tube.

Assignees

• Yazaki Corp

Inventors

• Sawairi Kaoru
• Sugiyama Takahiro

Classifications

• H02G3/0468 Primary

  Corrugated · CPC title

• H02G3/0691

  Fixing tubing to casing by auxiliary means co-operating with indentations of the tubing, e.g. with tubing-convolutions · CPC title