JPH08308070A - Band clip for currugated tube - Google Patents

Abstract

PURPOSE: To make it possible to definitely prevent the winding position from being deviated laterally by inserting a ring-shaped projected portion of a corrugated tube to a slit of a band portion, by engaging a fitting and inserting portion to a ring-shaped recessed portion of the corrugate tube, and by positioning and holding the band portion to the corrugate tube. CONSTITUTION: A band portion 11a is wound around the outer periphery of a corrugated tube 10 so as to insert a ring-shaped projected portion to a slit 11e of the hand clip 11. Then, a fitting and inserting portion 11f of a band portion 11a is fitted along the bottom surface of a ring-shaped recessed portion of the corrugated tube 10. Then, the band portion 11a is inserted to an inserting hole 11g of a band lock portion 11b and is pulled, and a linkage groove 11d and a linkage piece 11h of the facing band portion 11a are linked, tightened and fixed. By doing this, the band clip 11 is positioned to the corrugated tube 10. In consequence, the corrugated tube can be reliably held without creating lateral deviation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a band clip for a corrugated tube to be mounted on a wire harness, and more particularly to a band portion laterally displaced from the outer periphery of a corrugated tube having a bellows shape having continuous annular irregularities. This is so that it can be positioned so that it does not exist.

[0002]

2. Description of the Related Art Usually, a wire harness to be installed in an automobile has a bellows-shaped corrugated tube having an annular concavo-convex portion continuous in the longitudinal direction at a place where it may be damaged by contact with other members. And is positioned and held on the vehicle body panel or the like. Conventionally, a band clip has been used as a means for fixing the wire harness to a required position of a vehicle body panel, and the band clip is a band lock portion formed at the rear end of a long band portion wound around the outer periphery of the wire harness. The body mounting clip is integrally molded.

Band clip 1 for corrugated tube
Is a long band portion 1a as shown in FIGS. 7 and 8.
Positioning ribs 1 extending in the longitudinal direction on both sides of one surface
b is projected, and these ribs 1b are fitted into the concave portion 2b outside the annular convex portion 2a of the corrugated tube 2 for positioning. The band clip 1 is located at a position opposite to the mounting position of the vehicle body panel and is located at the corrugated tube 2
After being wound around, the band portion 1a is inserted into the insertion hole 1d of the band lock portion 1c from the front end, and the outer periphery of the corrugated tube 2 is tightened. (Not shown) is attached by engaging with a locking piece 1e protruding into the insertion hole 1d, and the band lock portion 1c.
The more protruding clip 1f is inserted into the through hole of the vehicle body panel and attached.

Further, as shown in FIG. 9, a rib 1b 'having substantially the same width as the annular recess 2b of the corrugated tube 2 is provided at the center of one surface of the band portion 1a so as to project the rib 1b' from the annular shape of the corrugated tube 2. There is also provided a band clip 1 configured to wind the band portion 1a in the circumferential direction so as to be inserted into the recess 2b.

[0005]

The rib 1b is formed by winding the band portion 1a in an annular shape along the outer circumference of the corrugated tube 2, so that the protruding amount T thereof does not impair the flexibility of the band portion 1a. Must be formed small,
The protrusion amount T is about 1 mm. Rib 1 like this
Since the protrusion amount T of b is formed to be small, when the corrugated tube 2 moves together with the wire harness W / H due to vibration during traveling of the automobile, the ribs 1b are formed on both sides of the annular convex portion 2a of the corrugated tube 2. There is a problem in that lateral deviation easily occurs between the band portion 1a and the corrugated tube 2 due to the removal from the concave portion 2b. The latter band clip 1 shown in FIG. 9 also has only one positioning rib 1b ′ in the center and the rib 1b ′ has a small protrusion amount, so that the same problem as described above is likely to occur. .

The present invention has been made in view of the above problems, and it is possible to prevent lateral displacement of the winding positions of the corrugated tube in which the annular projections and depressions are continuously wound with the band portion wound around and positioned. The purpose is to provide a band clip for a corrugated tube that can be reliably prevented.

[0007]

In order to achieve the above object, the present invention provides a band portion wound around the outer periphery of a corrugated tube which is sheathed in a wire harness and a rear end of the band portion. A band lock portion for inserting and fixing the tip end of the band wound around the corrugated tube, and a clip projecting from the band lock portion and locked to a vehicle body panel of an automobile, and extending in the longitudinal direction on the band portion. A slit is provided, and a pair of fitting insertion portions is formed on both sides of the slit, and the annular projection of the corrugated tube is inserted into the slit so as to project, and the fitting insertion portion is fitted into the annular recess of the corrugated tube. Provided is a corrugated tube band clip in which a band portion is positioned and held by a corrugated tube. That is, in the corrugated tube band clip, at least one of the pair of fitting insertion portions is fitted into the annular recess of the corrugated tube and wound and fixed.

According to a second aspect of the present invention, the slit is formed in the widthwise center of the band portion with a width slightly larger than the width of the annular convex portion of the corrugated tube, and the slits are fitted in the annular concave portions on both sides of the annular convex portion of the corrugated tube. I am trying to fit the insertion part.

[0009]

According to the band clip for a corrugated tube according to claim 1 of the present invention, the annular convex portion of the corrugated tube facing the mounting position of the vehicle body panel and the slit of the band clip are made to correspond to each other, and the annular convex portion is provided in the slit. Wrap the band around the outer circumference of the corrugated tube so that the section is inserted. As a result, at least one of the fitting insertion portions is fitted along the annular recess of the corrugated tube, and in this state, the band portion is appropriately tightened and fixedly held by the band lock portion for positioning.

In the positioned state, the fitting portion of the band portion is fitted along the annular recess of the corrugated tube,
The fitting portion is sandwiched between the adjacent annular protrusions of the corrugated tube. Further, in the positioned state, the step difference of the difference between the depth of the annular concave portion and the wall thickness of the band portion is formed by the annular convex portion. Since the band portion including the fitting insertion portion is appropriately tightened and fixed to the outer periphery of the corrugated tube,
The fitting section cannot get over the step, so
Due to the positioning state of the corrugated tube and the band clip, it is possible to surely prevent lateral displacement.

According to the band clip for the corrugated tube of the second aspect, the annular convex portions of the corrugated tube are inserted into the slits, and the pair of fitting insertion portions are fitted into the annular concave portions on both sides of the annular convex portion. Therefore, the positioning can be stably and firmly held.

[0012]

The present invention will be described in detail below with reference to the embodiments shown in the drawings. As shown in FIGS. 1 to 3, a band clip 11 for a corrugated tube according to the present invention includes a band portion 11a to be wound around the outer periphery of a corrugated tube 10 which is sheathed in a wire harness W / H, and a rear end of the band portion 11a. A band lock portion 11b that is provided and that inserts and fixes the tip end of the band wound around the corrugated tube 10,
Projected from the band lock part, a body panel of an automobile, etc.
A clip 11c that engages with (not shown) is integrally formed of synthetic resin.

The corrugated tube 10 has a bellows shape in which an annular concave portion 10a and a convex portion 10b are continuous in the longitudinal direction. A slit 10c is provided on one side of the corrugated tube 10 in the longitudinal direction. The wire harness W / H is pushed open to be fitted onto a required position of the wire harness W / H. The annular convex portion 10b is projected from the bottom surface of the annular concave portion by a required amount of projection in order to surely alleviate the contact with other members, and the protruding height is set to 2 to 3 mm. That is,
The groove-shaped annular recess 10a has a depth H of 2 to 3 mm. The corrugated tube 10 has a pitch P between the adjacent annular protrusions 10b and 10b and an uneven portion 10.
Various a and 10b having different widths are formed.

Band portion 11a of the band clip 11
Has a sawtooth cross section in which a V-shaped locking groove 11d is provided in the width direction so as to repeat unevenness in the longitudinal direction of one surface thereof.

A slit 11e is provided at the center of the band portion 11a in the width direction from the vicinity of the rear end of the band lock portion 11b to the vicinity of the tip thereof. A pair of slits 11e are fitted on both sides of the slit 11e into the annular recess 10a of the corrugated tube 10. 11f and 11f are formed. The slit 11e is formed slightly larger than the width of the annular convex portion 10b of the corrugated tube 10, while the width of the fitting insertion portion 11f is smaller than the width of the annular concave portion 10a. In this embodiment, the wall thickness t of the band portion 11a is 1 mm. Further, the slits 11e are formed so as to correspond to the pitches of the corrugated portions 10a and 10b of the corrugated tube 10 having the highest degree of use among the corrugated tubes 10. Various band clips may be formed so as to correspond to the corrugated tubes 10 having different pitches P, respectively.

The band lock portion 11b is provided with an insertion hole 11g into which the band portion 11a is inserted, and the insertion hole 11g.
A flexible locking piece 11h that engages with the locking groove 11d of the band portion 11a is provided therein. The locking piece 11h
Is the slit 11e from the center of the upper surface of the insertion hole 11g.
The width is larger than the width.

The clip 11c is provided with a vehicle body panel positioning plate 11i from one surface of the band lock portion 11b.
A support shaft 11j is provided so as to project from the outer surface of the vehicle body panel positioning plate 11i, and locking step portions 11k, 1k that engage with the peripheral edge of the through hole of the vehicle body panel from both ends of the support shaft 11j.
A pair of locking blades 11m and 11m provided with 1k are projected.

The band clip 11 is attached to the uneven portion 10
Corrugated tube 10 corresponding to pitch P of a and 10b
When attached to, first, the annular convex portion 10b of the corrugated tube 10 at a position facing the through hole of the vehicle body panel,
The band portion 11a is wound around the outer periphery of the corrugated tube 10 so that the slit 11e of the band clip 11 is made to correspond to and the annular convex portion 10b is inserted into the slit 11e. As a result, as shown in FIGS. 3 (A) and 3 (B), the fitting / inserting portions 11f and 11f of the band portion 11a are attached to the corrugated tube 10.
It is in a state of being fitted along the bottom surface of the annular recess 10a.

Next, the band portion 11a is inserted from the tip into the insertion hole 11g of the band lock portion 11b and pulled, and the outer periphery of the corrugated tube 10 is appropriately tightened by the band portion 11a, and the opposing band portions 11a are locked. The groove 11d and the locking piece 11h are engaged with each other and fixed by tightening, and the band clip 11 is positioned on the corrugated tube 10.

In the above-mentioned positioning state, the pair of fitting insertion portions 11
f and 11f are fitted along the bottom surface of the annular recess 10a of the corrugated tube 10, respectively, and the fitting insertion portions 11f and 11f are inserted.
Is sandwiched between the adjacent annular protrusions 11b and 11b. Further, in the positioned state, a step having a difference (H−t) between the depth H of the annular concave portion and the wall thickness t of the band portion 11a is formed by the annular convex portion 10a, and in the present embodiment, it is 1 to 2 mm.
The step is formed.

A band portion 1 including the fitting portions 11f and 11f
Since 0a is wound around the outer circumference of the corrugated tube 10 with an appropriate tightening force, it cannot get over the step. Therefore, the corrugated tube 10 is positioned by the band clip 11 so that the corrugated tube 10 can be securely held without lateral displacement therebetween. And,
Since the pair of fitting insertion portions 11f and 11f are fitted along the annular recess 10a of the corrugated tube 10, the positioning can be performed firmly in a stable state.

In the band clip 11, the clip 11c of the band clip 11 is inserted into the through hole of the vehicle body panel from the above-described positioning state, and the locking blade portion 1 is provided on the periphery of the through hole.
The locking step 11k at the tip of 1 m is engaged and held by the vehicle body panel.

On the other hand, the band clip 1 is attached to the corrugated tube 10 in which the pitch between the fitting portions 11f and 11f is different from the pitch P and the width between the annular convex portions 10b and 10b.
When 1 is wound, as shown in FIG. 4, only one fitting insertion portion 11f is fitted into the annular recess 10a,
The band portion 11a is wound around the outer circumference of the corrugated tube 10 and is fixed by tightening the band lock portion 11b. Even in this case, since the one fitting insertion portion 11f is fixed so as not to be disengaged from the annular recess 10a, the lateral displacement does not occur between the band portion 11a and the corrugated tube 10.

5 and 6 show a modified example of the corrugated tube band clip 11 of the present invention, in which the extension length of the slit 11e is the same as that of the outer periphery of the annular recess 10a of the corrugated tube 10. It is formed shorter than the length.

When the band clip 11 is attached to the corrugated tube 10, as shown in FIG. 6, the annular convex portion 10b of the corrugated tube 10 is inserted into the slit 11e on the base side of the band portion 11a, and the fitting insertion portion 11f, 11
f is fitted along the annular recess 10a of the corrugated tube 10. On the other hand, at the tip portion 11a-1 of the band portion 11a where the slit 11e is not formed, the slit 1
Annular projection 1 of corrugated tube 10 inserted in 1e
It is tightened and fixed with an appropriate tightening force while riding on the outer periphery of 0b.

The band clip 11 of the above modification is fixed by tightening at least the fitting insertion portion 11f fitted in a part of the annular recess 10a of the corrugated tube 10, and the fitting insertion portion 11f is fixed to the annular projection 10b. Since it is not possible to get over the step formed by the band clip 11
The lateral displacement does not occur depending on the positioning state between the corrugated tube 10 and the corrugated tube 10.

Even in the band clip 11 of the above modification, even if only one of the fitting insertion portions 11f is fitted in the annular recess 10a of the corrugated tube 10 as described above, the positioning state is surely maintained. Can hold.

[0028]

As is apparent from the above description, the band clip for a corrugated tube according to claim 1 of the present invention is formed on both sides of the slit when the wire harness is positioned in the corrugated tube inserted therein. At least one of the fitting insertion portions is fitted into the annular recess of the corrugated tube, and in this state, the fitting insertion portion is sandwiched between the adjacent annular projections,
The annular projection forms a required step above the fitting portion. Therefore, it is possible to reliably prevent the lateral displacement from occurring at the winding position between the band portion and the corrugated tube.

In the corrugated tube band clip according to the second aspect of the invention, since the respective fitting insertion portions are fitted into the annular concave portions on both sides of the annular convex portion of the corrugated tube, the corrugated tube band clip is firmly tightened and fixed in a stable state for positioning. In addition to being able to do so, the positioning state can be surely maintained.

[Brief description of drawings]

FIG. 1 is a perspective view showing a state in which a band clip of the present invention is positioned on a corrugated tube.

2 is a perspective view showing the band clip of FIG. 1. FIG.

3 (A) and 3 (B) are cross-sectional views of a main part of the band clip in a positioned state.

FIG. 4 is a cross-sectional view of an essential part showing a state in which the corrugated tubes having different pitches are positioned.

FIG. 5 is a perspective view showing a modified example of the band clip of the present invention.

6 is a sectional view showing a state in which the band clip of FIG. 5 is positioned on a corrugated tube.

FIG. 7 is a perspective view showing a conventional band clip for a corrugated tube.

FIG. 8 is a cross-sectional view of essential parts showing a state in which the band clip of FIG. 7 is positioned on a corrugated tube.

FIG. 9 is a perspective view showing another conventional band clip for a corrugated tube.

[Explanation of symbols]

 10 Corrugated Tube 10a Annular Recess 10b Annular Convex 11 Band Corrugated Tube Clip 11a Band 11b Band Lock 11c Clip 11e Slit 11f Fitting W / H Wire Harness

Claims (2)

[Claims] 1. A band part wound around the outer periphery of a corrugated tube that is sheathed in a wire harness, a band lock part provided at the rear end of the band part, for inserting and fixing the tip end of the band wound around the corrugated tube, A clip protruding from the band lock portion and locked to a vehicle body panel of an automobile or the like is provided, and a slit extending in the longitudinal direction is provided in the band portion, and a pair of fitting insertion portions is formed on both sides of the slit. A band clip for a corrugated tube, which is configured such that an annular convex portion of a corrugated tube is inserted into a slit to be projected, and the fitting insertion portion is fitted in an annular concave portion of the corrugated tube so that the band portion is positioned and held by the corrugated tube. 2. The slit is formed in the widthwise center of the band portion with a width slightly larger than the width of the annular convex portion of the corrugated tube, and the fitting insertion portions are respectively provided in the annular concave portions on both sides of the annular convex portion of the corrugated tube. The band clip for a corrugated tube according to claim 1, which is adapted to be fitted.