JP2002315164A - Clamp and wiring installation method therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To install on a car body panel a small-diameter portion of a wire harness where the wire harness is constituted of a smaller number of electric wires. SOLUTION: A clamp comprising a base portion having insertion holes through which electric wires are passed and a car body anchoring portion protruded from the base portion is integrally formed out of resin. When the clamp is fixed on a car body panel, electric wires are passed through the insertion holes, and the clamp is slid on the electric wires and moved to a specified position.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clamp and a method for attaching an electric wire to the clamp, and more particularly to a clamp for fixing a small diameter portion composed of a small number of electric wires to a vehicle body.

[0002]

2. Description of the Related Art There is a case where a small diameter portion having a small number of about 1 to 3 wires constituting a wire harness is attached to a vehicle body. At present, electric wires are set and attached using tape-type or band-type clamps.

FIG. 9 shows a tape-type clamp.
As shown in (A), by winding two wires constituting the wire harness around the substrate 4a of the clamp 4 with the tape 5, the wire group and the clamp 4 are integrated, and the locking portion 4b of the clamp is formed. The wire harness is fixed to the vehicle body by being inserted into a mounting hole provided in the vehicle body. Since the above-mentioned tape-clamp type clamp has a holding force of only an adhesive force, if the number of wires is a small number of one to three, a gap is formed as shown in FIG. Become. For this reason, in the manufacturing process, the number of tape windings is specifically indicated on a manufacturing drawing so as not to shift, and the slip is prevented by winding the tape more than usual.

A band type clamp is shown in FIG.
As shown in (A), the band 7a of the band clamp 7 is wound around two wires constituting the wire harness and tightened, the wire group and the clamp 7 are integrated, and a locking portion 7b of the clamp is provided on the vehicle body. The vehicle body and the wire harness are fixed by being inserted into the mounting holes. Also in this band type clamp, when the number of electric wire groups is small, as shown in FIG. 10B, deviation or loosening of a tightened portion is likely to occur due to deviation or twisting of electric wires.

When the clamp is fixed to the vehicle body with the clamp attached to an electric wire, as shown in FIG. 11, a vehicle body locking portion 4b is inserted into a mounting hole 3 provided in the vehicle body and fixed. If the position of the mounting hole 3 is displaced from the position of the clamp, insertion becomes impossible. For this reason, it is necessary to pay close attention to the mounting position of the clamp with respect to the electric wire, and there is a problem that the number of work is increased accordingly.

In order to solve the above problem, Japanese Patent Application Laid-Open No. 9-468
65 proposes a structure in which a movable locking portion is provided on a wire harness. That is, as shown in FIG. 12, the band portion 1a and the stem portion 1 are connected to the wire harness 2.
b, the built-in clip 1 composed of the rail portion 1c is fastened, and the stem portion 1b is slid and inserted into a position corresponding to the mounting hole 3a or 3b opened in the vehicle body, thereby fixing the built-in clip 1.

[0007]

The above-mentioned Japanese Patent Application Laid-Open No. 9-468.
With the built-in clip proposed in No. 65, the locking portion can be set at any position that matches the wiring harness mounting position. However, due to the size of the built-in clip, it is composed of a small number of electric wire groups. There is a problem that the built-in clip cannot be fastened to the wire harness.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and in a wire harness having a small diameter portion in which the number of electric wires is a small number of 1 to 3, a clamp is firmly fixed to the wire harness. Another object of the present invention is to make it easy to adjust the position when attaching to a vehicle body.

[0009]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention is directed to fixing a small-diameter portion having a small number of one to three wires constituting a wire harness to a vehicle body panel. A clamp, wherein a board portion provided with a through hole through which the small number of electric wires pass one by one or collectively, and a vehicle body locking portion projecting from the board are integrally formed of resin. To provide a clamp.

[0010] With the above configuration, the clamp can be attached to the electric wire by passing the electric wire through the through hole provided in the substrate portion of the clamp. Further, since the clamp is slidable with respect to the electric wire, the clamp can be easily moved to a required position.

Further, in the present invention, the substrate portion is provided with a groove which is open on the opposite side to the vehicle body locking portion and communicates with the through hole, and a pressing member is pushed into the groove to pass through the through hole. Is also provided for a clamp which is pressed and fixed to position and fix the wire.

[0012] With the above structure, after the electric wire is passed through the through hole, the pressing wire is pushed in, and the passed wire is pressed and fixed. Therefore, after the clamp is positioned at a predetermined position with respect to the electric wire, the pressing member is pushed in. Can be fixed to the moving addition.

It is preferable that the through hole of the clamp is set to be substantially equal to or slightly larger than the outer diameter of one wire to be penetrated or the outer dimensions of a plurality of wires. With this configuration, the clamp is positioned and held with respect to the electric wire, and can be slightly moved for alignment with the vehicle body panel side.

In the above-mentioned clamp, one through hole is provided.
The wires may be passed through a book or may be passed all together. The number of through holes may be any number as long as it can be provided in the clamp, but is preferably 1 to 3. 1
When multiple through holes are provided, the wires are passed
When a plurality of through holes are provided, it is preferable to pass the wires one by one, but it is not necessary to pass all the wires through the provided through holes.

After passing the electric wire through the through hole of the clamp, a terminal is connected to the end of the electric wire, and the terminal is inserted and locked in the connector. In addition, if the terminal connected to an electric wire terminal is large enough to pass through the through hole of the clamp, the terminal may be attached to the electric wire terminal first.

When the electric wires are routed on the vehicle body, if the positions of the mounting holes formed in the vehicle body panel and the positions of the clamps do not match, the clamps are moved to the positions of the mounting holes and locked on the vehicle body. ing. With the above-described method of attaching the electric wire to the clamp, the clamp can be moved on the electric wire in a state where the electric wire is attached to the clamp, so that the positioning with the mounting hole on the vehicle body panel side can be easily performed. .

[0017]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a resin molded clamp 10 for attaching a roof wire harness to a vehicle body panel according to the first embodiment. The clamp 10 integrally protrudes a vehicle body locking portion 12 from a substrate portion 11. . Substrate section 11
Are provided with two through-holes 11a and 11b, and a receiving portion 13 for adjusting the thickness is protruded toward the vehicle body locking portion.

The through-holes 11a and 11b allow one wire 20a and 20b to pass through, respectively, and each through-hole is set slightly larger than the diameter of the wire.

The vehicle body locking portion 12 is formed between the base portion 11 and the shaft portion 12.
a protrudes from the tip of the shaft portion 12a, and has a shape in which both side blades 12b and 12c are provided in a folded shape, and is inserted and locked in the mounting hole 41 of the vehicle body panel 40.

FIG. 2 shows a state in which two electric wires 20 are attached to the clamp 10. In the present embodiment, two clamps 10 are used because the wire 20 is long to some extent. The work of attaching the electric wire 20 to the clamp 10
As shown in FIG. 2A, an electric wire 20a is inserted into a through hole 11a provided in the substrate 11 of the clamp 10, and the through hole 11b
Through the wire 20b. Thereafter, as shown in FIG. 2B, the terminal 30 is connected to the terminal of the wire group 20. At this time,
The two clamps 10 are respectively moved on the electric wires 20 and positioned at required positions.

Next, a state in which the electric wire 20 is attached to the vehicle body 40 is shown in FIG. As shown in FIG. 3 (A), when the vehicle body locking portion 12 of the clamp 10 does not exactly match the position of the two mounting holes 41 provided in the vehicle body 40, each clamp 10 is slightly moved to perform positioning. I do. Then, clamp 10
3 is pushed into the mounting hole 41, and FIG.
Lock as shown in (B).

With the above configuration, the clamp can be attached to the electric wire 20 by passing the electric wire 20 through the through holes 11a and 11b of the clamp 10, respectively. further,
When the position of each clamp 10 does not match the position of the mounting hole 41 of the vehicle body panel, the position can be easily adjusted by moving on the electric wire. Moreover, even a small number of two wires can be attached to the clamp 10 without play.

FIGS. 4A and 4B show a clamp 50 for attaching a roof wiring harness to a vehicle body panel according to a second embodiment. The clamp 50 has one through-hole 51 a provided in the substrate portion 51, and one electric wire 20 passes through the through-hole 51 a.

FIGS. 5A and 5B show a modification of the second embodiment, in which one through hole 51a 'provided in the substrate portion 51' of the clamp 50 'is approximately twice as large as that of FIG. Two electric wires pass through the through hole 51a '.

FIG. 6 shows a clamp 60 attached to the roof wire harness according to the third embodiment. Clamp 6
0 is provided with a groove 65 opened in the upper surface of the substrate portion 61 on the opposite side to the vehicle body locking portion 62, and the groove 65 is formed through the through hole 61a,
62b. A pressing member 64 is provided in the groove 65.
To position and fix the electric wires passing through the through holes 61a and 61b. Note that the pressing member 64 may be integrally formed by being connected to the substrate portion via a flexible band.

The clamp 60 has two electric wires 20a and 20b.
6A is shown in FIG. When the electric wires 20a and 20b pass through the clamp 60, the clamp 60
The electric wire 20a is inserted into the through hole 61a provided in the substrate portion 61 of FIG.
Through the through-hole 61b. Through hole 61a,
The electric wires 20a and 20b passing through 61b move freely, and at a required position, as shown in FIG.
The pressing member 64 is pushed into the through holes 61a and 61b.
The two electric wires 20a and 20b passing through are pressed and fixed.

FIG. 7 shows a clamp 70 attached to a roof wire harness according to the fourth embodiment. Board part 71
Are provided with elliptical cross sections.

FIG. 8 shows a state in which the electric wires 20a and 20b are passed through the through holes 71a and 71b of the clamp 70, respectively. When penetrating the electric wire 20 through the through holes 71a and 71b, the left and right ends of the board part 71 are pinched and bent by hand. When bent, the through hole 71 temporarily becomes substantially circular, and the electric wire can be passed through. When the hand is released again, it returns to the original shape of the elliptical through-holes 71a and 71b, and the electric wire 20 can be fixed, so that the fixing is secure. In addition, when the substrate portion 71 is bent, it can be moved to an arbitrary position, so that it can be easily adjusted to the position of the mounting hole 41 of the vehicle body 40.

[0029]

As is apparent from the above description, according to the present invention, in a small-diameter wire harness composed of a small number of one to three wires, the wires are passed through the through holes provided in the clamp. In addition, the electric wire can be positioned and held on the clamp without rattling. In addition, when the mounting hole is misaligned with the mounting hole when the mounting hole is mounted on the vehicle body, the positioning can be easily performed by moving the clamp. Therefore, unnecessary tape winding wound to prevent displacement can be eliminated, so that the number of steps can be reduced and the cost can be reduced, so that productivity can be improved.

[Brief description of the drawings]

FIG. 1 is a perspective view of a clamp according to a first embodiment of the present invention.

FIGS. 2A to 2C are views showing a method of attaching a clamp to an electric wire according to the first embodiment.

3A and 3B illustrate a method of fixing to a vehicle body by a clamp according to the first embodiment, wherein FIG. 3A is a perspective view before fixing, and FIG. 3B is a perspective view when fixing.

FIG. 4 shows a clamp according to a second embodiment, and (A)
Is a perspective view, and (B) is a perspective view when an electric wire is penetrated.

5A and 5B show a modification of the second embodiment, in which FIG. 5A is a perspective view, and FIG. 5B is a perspective view when an electric wire is penetrated.

FIG. 6 shows a clamp according to a third embodiment of the present invention, wherein (A) is a perspective view and (B) is a cross-sectional view.

FIG. 7 is a perspective view of a clamp according to a fourth embodiment of the present invention.

8A and 8B show a method of attaching a clamp to an electric wire according to a fourth embodiment, wherein FIG. 8A is a perspective view and FIG.

9A and 9B show a conventional tape clamp type clamp, in which FIG. 9A is a perspective view and FIG. 9B is a side view.

FIG. 10 shows a conventional band-type clamp,
(A) is a perspective view, (B) is a side view.

FIG. 11 is a perspective view of a conventional clamp assembled into a vehicle body.

FIGS. 12A and 12B are diagrams showing another conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Clamp 11 Substrate part 11a, 11b Through-hole 12 Car body locking part 12a Shaft part 12b, 12c Wing part 13 Receiving tray 20 Electric wire 30 Terminal 40 Body 41 Mounting hole

Claims (3)

[Claims] 1. A clamp for fixing a small-diameter portion in which the number of electric wires constituting a wire harness is a small number of 1 to 3 to a vehicle body panel, wherein the small number of electric wires are individually or collectively. Characterized in that a board portion provided with a through hole through which the vehicle body passes and a vehicle body locking portion projecting from the board portion are integrally formed of resin. 2. A substrate is provided with a groove that opens on the opposite side to the vehicle body locking part and communicates with the through hole, and a pressing member is pressed into the groove to press and fix an electric wire passing through the through hole. The clamp according to claim 1, wherein the clamp is positioned and fixed to the electric wire. 3. A terminal is connected to an end of the electric wire after passing the electric wire through the through hole of the clamp according to claim 1 or 2, and the clamp is slid with respect to the electric wire to a predetermined position. The method of attaching clamp wires that are moved and positioned and fixed.