Corrugated tube holding structure and electric wire protection component

Patent metadata

Field	Value
Publication number	US-2026031602-A1
Application number	US-202519274998-A
Country	US
Kind code	A1
Filing date	Jul 21, 2025
Priority date	Jul 23, 2024
Publication date	Jan 29, 2026
Grant date	—

Abstract

Included is a pair of holding members formed with an accommodation space into which an end of a corrugated tube is inserted in an assembly completion state and which locks movement of the end of the corrugated tube in an insertion direction and a removal direction, in which holding ribs and holding grooves, which are alternately formed in an axial direction, are provided on an inner peripheral surface of the accommodation space, the holding rib is concentrically accommodated in a valley portion of the corrugated tube, and the holding groove concentrically accommodates a peak portion of the corrugated tube.

First claim

What is claimed is:

1 . A corrugated tube holding structure comprising:
a pair of holding members formed with a columnar accommodation space into which an end of a corrugated tube having a circular tubular shape is inserted in an insertion direction along a tube axis in an assembly completion state and which locks movement of the end of the corrugated tube, in the insertion direction, and in a removal direction along a tube axis, wherein the corrugated tube is formed in a bellows tube shape having annular valley portions and peak portions alternately arranged in a tube axial direction, annular holding ribs and holding grooves, which are alternately formed in an axial direction, are provided on an inner peripheral surface of the accommodation space, the holding rib is concentrically accommodated in the valley portion on an outer peripheral surface side, the holding groove concentrically accommodates the peak portion on the outer peripheral surface side, an annular first sidewall surface, which is a sidewall surface on the insertion direction side in the peak portion on the outer peripheral surface side, is formed in a side surface shape of a truncated cone which is tapered toward the insertion direction, an annular second sidewall surface, which is a sidewall surface on the removal direction side in the peak portion on the outer peripheral surface side, is formed in an orthogonal plane shape with respect to the removal direction or a side surface shape of a truncated cone which is tapered toward the insertion direction, an annular first locking surface, which is a sidewall surface on the removal direction side in the holding rib, is an inclined surface having an inclination angle equal to that of the first sidewall surface, and is formed in a side surface shape of a truncated cone which is tapered toward the insertion direction, and an annular second locking surface, which is a sidewall surface on the insertion direction side in the holding rib, is formed in an orthogonal plane shape with respect to the insertion direction.

2 . An electric wire protection component comprising:
a corrugated tube having a bellows tube shape, the corrugated tube having annular valley portions and peak portions alternately arranged in a tube axial direction, a plurality of electric wires being inserted therethrough; a housing that accommodates the plurality of electric wires drawn out from an end of the corrugated tube and allows the electric wires to be drawn out to an outside; and a cover that holds the end of the corrugated tube between the cover and the housing in an assembly completion state, and covers and conceals the plurality of electric wires drawn out from the end of the corrugated tube between the cover and the housing in an assembly completion state, wherein the housing and the cover in an assembly completion state are formed with a columnar accommodation space into which the end of the corrugated tube is inserted in an insertion direction along a tube axis and which locks movement of the end of the corrugated tube, in the insertion direction, and a removal direction along a tube axis, annular holding ribs and holding grooves, which are alternately formed in an axial direction, are provided on an inner peripheral surface of the accommodation space, the holding rib is concentrically accommodated in the valley portion on an outer peripheral surface side, the holding groove concentrically accommodates the peak portion on the outer peripheral surface side, an annular first sidewall surface, which is a sidewall surface on the insertion direction side in the peak portion on the outer peripheral surface side, is formed in a side surface shape of a truncated cone which is tapered toward the insertion direction, an annular second sidewall surface, which is a sidewall surface on the removal direction side in the peak portion on the outer peripheral surface side, is formed in an orthogonal plane shape with respect to the removal direction or a side surface shape of a truncated cone which is tapered toward the insertion direction, an annular first locking surface, which is a sidewall surface on the removal direction side in the holding rib, is an inclined surface having an inclination angle equal to that of the first sidewall surface, and is formed in a side surface shape of a truncated cone which is tapered toward the insertion direction, and an annular second locking surface, which is a sidewall surface on the insertion direction side in the holding rib, is formed in an orthogonal plane shape with respect to the insertion direction.

Assignees

• Yazaki Corp

Inventors

• Sawairi Kaoru
• Masuko Yoshihito

Classifications

• H02G3/0468 Primary

  Corrugated · CPC title

• H02G3/0691 Primary

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