JPH11162262A - Wire harness - Google Patents

Abstract

PROBLEM TO BE SOLVED: To flatten the protector side fixed part of a round tube and regulate the dimension of a branched line in a wire harness a branched line drawn from a protector and a round tube fitted thereon. SOLUTION: In a wire harness having a trunk W-1 passed into a protector 10 (body 10a or the like), and a branched line W-2 drawn through an opening provided on the protector 10 and passed through a round tube 12, the position of the protector 10 side tip end of the round tube 12 passing the branched line is set to the position of a fixing piece 14 protruded from the opening of the protector 10. The terminal of the round tube 12 is fixed to the fixing piece 14 by winding a tape 13, the round tube 12 is flattened, and the tube 12 is passed through the opening so that the branched line W-2 in the protector 10 can be drawn, and the dimension from the opening of the protector 10 to the tip end of the branched line W-2 can be regulated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire harness, and more particularly, to a branch line passing through a tube from a protector provided on a trunk line of a wire harness arranged in an automobile, and the branch line is connected to an injection. In this case, the dimensional accuracy of the branch line is improved.

[0002]

2. Description of the Related Art As shown in FIG. 5, a branch line of a wire harness connected to an injection of a car of this type is formed by inserting a trunk line W-1 of a wire harness W / H into a protector 2 made of a resin molded product. A pair of branch lines W-2 are drawn out from a pair of branch line openings 2b provided on the side wall of the protector 2, and the ends of these branch lines W-2 are connected to the injection 3. The branch line W-2 is protected by passing through the round tube 3, and the round tube 3 is connected to the branch line opening 2.
b to the inside of the protector 2, and tape-wrapped with another group of wires of the trunk line, and further, a round tube 3 is wound around the fixing piece 2 c protruding from the branch line opening 2 b with a tape 4 and fixed.

[0003] As described above, the tube 3 covered with the branch line W-2 is fixed to the fixing piece 2c of the protector 2 by tape winding, so that the tube 3 is pulled out from the protector 2 at the position P1.
The length L of the branch line W-2 up to a position P2 connected to the injection 5 is set to a predetermined set size.

[0004]

However, there are cases where an error occurs in the mounting position of the injection 5 when mounted on an automobile.
The configuration of the branch line W-2, which is not provided, cannot be adjusted. Therefore, if the position from the protector 2 to the injection 5 is longer than the set dimension, the branch line W-2 may be short of the required length, and the branch line W-2 may be stretched and the wire may be cut. is there.

Further, the round tube 3 covered with the branch line W-2 is fixed by winding a tape 4 around a fixing piece 2b of the protector 2. As shown in FIG.
Is further inserted into the inside of the protector 2 from the tape winding fixed position, and is bent out of the branching opening 2b and pulled out. Since the round tube 3 is not easily flattened at a position close to the bent portion, as shown in FIG. 7, the round tube 3 does not flatten at the tape-wrapped portion of the fixing piece 2b, and remains in a true circular cross section. I have.

The head cover 6 of the engine is located above the fixing piece 2b of the protector 2. Therefore, if the round tube 3 remains circular without flattening, the head cover 6 and the round tube 3 interfere with each other. As a result, the round tube 3 could be broken.

The present invention has been made in view of the above problems, and has as its object to make it possible to flatten a round tube at a position where the protector is fixed to a fixing piece and to adjust the length of a branch line.

[0008]

Means for Solving the Problems To solve the above problems, the present invention firstly passes a trunk line of a wire harness into a protector, draws out a branch line from an opening provided in the protector, and draws the branch line. In the wire harness passed through the round tube, the protector-side tip position of the round tube passing through the branch line is set to the position of a fixing piece protruding from the opening of the protector, and the end of the round tube is fixed to the fixing piece by tape winding. Providing a wire harness characterized in that the round tube is flattened and the branch line inside the protector can be pulled out through the tube through the opening, and the dimension from the protector opening to the branch line tip can be adjusted. doing.

As described above, when the round tube to be sheathed on the branch line is cut off at the position of the fixing piece with the protector to form an end, the round tube is flattened when fixed to the fixing piece by tape winding. Can be. Therefore, it is possible to prevent the round tube from interfering with other members. Conventionally, the round tube passing through the branch line was inserted into the inside of the protector and fixed to another wire by tape winding, so that the dimension of the branch line could not be adjusted, but in the present invention, the round tube was inserted inside the protector. In addition, since it is taped and bound to another group of electric wires with a margin, it is possible to draw out the branch line from the inside of the protector through the round tube. As a result, even if the position of the device connected to the end of the branch line is displaced, the branch line can be routed without adjusting the length of the branch line by cutting the branch line.

[0010] Second, the present invention relates to a wire harness in which a trunk line of a wire harness is passed through a protector, a branch line is drawn out from an opening provided in a body of the protector, and the branch line is passed through a round tube. The position of the tip of the round tube on the protector side through which the wire passes is the position of the fixing piece protruding from the opening of the protector body, and the end of the round tube is flattened by the fixing piece and the fixing piece provided on the cover of the protector. The wire harness is characterized in that the wire from the protector opening to the tip of the branch wire can be adjusted by allowing the branch line inside the protector to be drawn out through the tube through the opening.

According to the second aspect of the invention, instead of fixing the end of the round tube to the fixing piece by tape winding, the fixing piece provided on the cover of the protector is used to fix the protector body side and the lid side. The round tube is flattened and fixed between the pieces.

[0012] The wiring structure of the wire harness uses a heat-resistant tube as a round tube through which a branch line passes, and
The terminal of the branch line is connected to the injection, and is suitably adopted when the head cover of the engine is located above the fixing piece of the protector.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 show a first embodiment. In the first embodiment, a branch opening 1 of a protector 10 is shown.
Round tube 12 through which branch line W-2 drawn from 1 is passed
Is fixed to a fixing piece 14 projecting outward from the opening 11 using a tape 13.

The protector 10 is a resin molded product formed from FRP, and comprises a gutter-shaped main body 10a and a lid 10b connected to one side wall of the main body 10a via a thin hinge. The pair of branch openings 11 are provided. The fixing piece 14 protrudes from the upper end of the other side wall of the main body 10a at a position where it hits the opening 11 with the lid 10b closed to the main body 10a. The lid 10
b is fixed to the main body 10a by the lock portion 15.

A wire harness W / H is inserted through the inside of the main body 10a of the protector 10, and a fixing piece 14 that contacts a branch line W-2 branched from a trunk line W-1 of the wire harness with the opening 11 is provided. It is pulled out from the provided position. That is, the branch line W-2 is pulled out from the upper end of the side wall of the main body 10a to the fixing piece 14 in a state of rising from the inside of the main body 10a as shown in FIG. The branch line W-2 in the protector body 10a is separated from the trunk line W-1 passing through the inside of the protector by a tape 16 with a margin.
It is united by rough winding.

The branch line W-2 is passed through a round tube 12 made of heat-resistant vinyl chloride.
The second protector-side tip 12a is at a fixed position with the fixed piece 14. The distal end 12a of the round tube 12 is firmly wound around the fixing piece 14 using an adhesive tape 13, and as shown in FIG. 3, the round tube 12 is flattened in an elliptical shape.

Connector 2 connected to the other end of branch line W-2
Numeral 0 is connected to the injection 5 and the fixing piece 14 of the protector 10 is located below the head cover 6 of the engine.

The assembling of the wire harness is performed on a wire harness assembling worktable by temporarily binding the wire harness W / to the main body 10a of the protector 10 held by a jig.
H, the branch line W-2 is pulled out from the wire harness, and the tube 1 having the branch line W-2 passed through the fixing piece 14
2 is wound around with a tape 13 and fixed. Next, the lid 10b of the protector 10 is closed and locked with the main body 10a. By assembling in this manner, the structure shown in FIG. 1 is obtained, and the length L of the branch line W-2 from the fixing piece 14 of the protector 10 to the injection 5 is set to a predetermined length.

The protector 10 is fixed to a vehicle body (not shown) when mounted on an automobile. Therefore, an error occurs in the mounting position of the injection 5 and the protector 10
If the dimension between and injection was long,
The length L of the branch line W-2 is insufficient. In this case, the branch line W-2 in the tube 12 is drawn out from inside the protector 10. Therefore, there is no danger that the branch line W-2 will be stretched and cut. Further, since the tube 12 is fixed to the fixing piece 14 of the protector 10 with the tape 13 in a flattened state, there is no danger of contact with the head cover 6 of the engine above.

FIGS. 4A and 4B show a second embodiment.
Fixing piece 1 provided with tip 12a of tube 12 passing through branch line W-2 on body 10a and lid 10b of protector 10
4 and 18 hold and fix. That is, a notch is provided in the side wall of the main body 10a from the upper end to form an opening 11 for a branch line, and the fixing piece 14 protrudes from the bottom wall of the main body 10a.
On the other hand, a fixing piece 18 protrudes downward from the lid 10b at a position facing the opening 11.

In the second embodiment, when the lid 10b is closed and locked with the distal end 12a of the tube 12 passing through the branch line W-2 positioned on the fixing piece 14, the fixing piece 18
The tube 12 is clamped and fixed in a flat elliptical shape between the tubes 14 and 14. Other configurations and operations are the same as those of the first embodiment, and thus description thereof is omitted.

[0022]

As is apparent from the above description, according to the present invention, since the tube for covering the branch wire drawn from the branch opening of the protector is cut at the position where the protector is pulled out, the fixing piece of the protector can be used. When fixed, it can be flattened into an elliptical shape. Therefore, even if an external interference material such as an engine head cover is positioned above the position where the external interference material is pulled out of the protector, the external interference material does not come into contact with the tube, thereby preventing damage to the tube.

Further, conventionally, since the tube to be sheathed on the branch line was pulled into the inside of the protector and wound around another electric wire with tape, the branch line could not be pulled out from the protector. Does not pull in the tube, and binds the branch line with a margin with other electric wires, so if the size of the branch line is shorter than the required dimension when mounted on the car, pull out the branch line from inside the protector through the tube, Dimensions can be adjusted. As a result, it is possible to reliably prevent the branch line from being pulled and cut off.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a wire harness according to a first embodiment of the present invention.

FIG. 2 is an enlarged sectional view of a main part.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

FIG. 4A is a perspective view of a second embodiment, and FIG. 4B is a cross-sectional view of a tube fixing portion.

FIG. 5 is a perspective view showing a conventional example.

FIG. 6 is a sectional view of a main part of a conventional example.

FIG. 7 is a sectional view taken along line BB of FIG. 6;

[Explanation of symbols]

 Reference Signs List 5 injection 6 engine head cover 10 protector 10a main body 10b lid 11 branch line opening 12 tube 12a tube tip 13 tape 14, 18 fixing piece W / H wire harness W-1 trunk line W-2 branch line

Claims (3)

[Claims] 1. A wire harness in which a trunk line of a wire harness is passed through a protector, a branch line is drawn out from an opening provided in the protector, and the branch line is passed through a round tube. The side tip position is the position of the fixing piece protruding from the opening of the protector, the end of the round tube is tape-fixed to the fixing piece to flatten the round tube, and the inside of the protector through the tube from the opening. A wire harness characterized in that a branch line can be pulled out and a dimension from a protector opening to a branch line tip can be adjusted. 2. A wire harness in which a trunk line of a wire harness is passed through a protector, a branch line is drawn out from an opening provided in a body of the protector, and the branch line is passed through a round tube. The protector side tip position is a position of a fixing piece protruding from the main body opening of the protector, and the end of the round tube is flattened and fixed with the fixing piece and a fixing piece provided on the cover of the protector, and A wire harness characterized in that a branch line inside the protector can be pulled out from the opening through a tube so that a dimension from the protector opening to the tip of the branch line can be adjusted. 3. A round tube through which the branch line passes is made of a heat-resistant tube, and an end of the branch line is connected to an injection, and an engine head cover is located above a fixing piece of the protector. Claim 1
Or the wire harness according to claim 2.