JP7040965B2 - Wire harness - Google Patents

Description

The present invention relates to a wire harness. More specifically, the present invention relates to a wire harness having a bending restricting member arranged on the inner circumference of a corrugated tube covering the outer circumference of an electric wire connected between a fixing member and a moving member.

Conventionally, as a wire harness, one end is connected to a vehicle body as a fixing member and the other end is connected to a slide door as a moving member, a corrugated tube covering the outer circumference of the electric wire, and one end side via a fixing portion of the vehicle body. It is known to be fixed to the wire and arranged between the outer circumference of the electric wire and the inner circumference of the corrugated tube and provided with a bending restricting member for restricting excessive bending of the electric wire and the corrugated tube (see, for example, Patent Document 1). ).

In this wire harness, a fixing portion fixed to the vehicle body is provided on one end side of the bending restricting member, and this fixing portion consists of a flange-shaped flange portion having an outer diameter larger than the inner diameter of the corrugated tube.

In such a wire harness, an excessive bending between the electric wire and the corrugated tube due to the movement of the sliding door is restricted by the bending restricting member fixed to the vehicle body via the fixing portion, and the electric wire and the corrugated tube have a bending habit. Can be prevented.

Japanese Unexamined Patent Publication No. 2016-136809

By the way, in a wire harness as in Patent Document 1, since a flange portion having an outer diameter larger than the inner diameter of the corrugated tube is provided on one end side of the bending restricting member, the bending regulating member is placed on the other end side of the corrugated tube. I could only insert it from.

Therefore, when the bending restricting member is inserted into the corrugated tube, the insertion side of the bending regulating member must be checked each time, which complicates the assembling work and reduces the assembling property.

Therefore, an object of the present invention is to provide a wire harness capable of improving assembling property.

The invention according to claim 1 is an electric wire having one end arranged on a fixing member and the other end arranged on a moving member, a corrugated tube covering the outer periphery of the electric wire, and one end side fixed to the fixing member via a fixing portion. A bending restricting member arranged inside the corrugated tube to regulate excessive bending between the electric wire and the corrugated tube, and one member continuous with the bending regulating member on both ends of the bending regulating member. It is a wire harness characterized by having a pair of insertion portions whose outer diameter is set to be smaller than the inner diameter of the corrugated tube so that the bending restricting member can be inserted into the corrugated tube.

In this wire harness, a pair of insertion portions whose outer diameter is set to be smaller than the inner diameter of the corrugated tube so that the bending restricting member can be inserted into the corrugated tube are one member continuous with the bending regulating member on both ends of the bending regulating member. Since it is provided, the bending restricting member can be inserted into the corrugated tube from either side.

Therefore, in such a wire harness, when inserting the bending restricting member into the corrugated tube, it is not necessary to worry about the orientation of the bending regulating member, the assembling work can be easily performed, and the assembling property is improved. can do.

The invention according to claim 2 is the wire harness according to claim 1, wherein the fixing portion is provided in each of the pair of the insertion portions.

In this wire harness, since a fixing portion is provided for each of the pair of insertion portions, no matter which side the bending restricting member is inserted into the corrugated tube, the bending regulating member is fixed via the fixing portion. Can be fixed to.

The invention according to claim 3 is the wire harness according to claim 1 or 2, wherein at least one of the pair of the insertion portions is formed separately from the bending restricting member and the fixing portion is provided. It is characterized in that the engaged member is fixed.

In this wire harness, an engaging member formed separately from the bending restricting member and provided with a fixing portion is fixed to at least one of the pair of insertion portions, so that the bending regulating member and the fixing portion are fixed to each other. Each can be designed independently, and the degree of freedom in designing the bending restricting member and the fixing portion can be improved.

According to the present invention, there is an effect that a wire harness capable of improving assembling property can be provided.

It is a side view which shows the operation when the wire harness which concerns on embodiment of this invention is arranged between a fixing member and a moving member. It is sectional drawing on the fixing member side of the wire harness which concerns on 1st Embodiment of this invention. It is sectional drawing of the moving member side of the wire harness which concerns on 1st Embodiment of this invention. It is sectional drawing on the fixing member side of the wire harness which concerns on 2nd Embodiment of this invention.

The wire harness according to the embodiment of the present invention will be described with reference to FIGS. 1 to 4.

(First Embodiment)
The first embodiment will be described with reference to FIGS. 1 to 3.

In the wire harness 1 according to the present embodiment, one end side is arranged on the fixing member 3 and the other end side is arranged on the moving member 5, a corrugated tube 7 covering the outer periphery of the electric wire, and one end side via the fixing portion 9. It is provided with a bending regulating member 11 which is fixed to the fixing member 3 and arranged inside the corrugated tube 7 to regulate excessive bending between the electric wire and the corrugated tube 7.

A pair of insertion portions 13, 13 having an outer diameter set to be smaller than the inner diameter of the corrugated tube 7 so that the bending restricting member 11 can be inserted into the corrugated tube 7 are provided on both ends of the bending restricting member 11, respectively. It is provided with one continuous member.

Further, the pair of insertion portions 13 and 13 are provided with fixing portions 9 and 9, respectively.

As shown in FIGS. 1 to 3, the wire harness 1 is a fixing member 3 fixed to a vehicle body (not shown) provided with a power supply, a control circuit, and the like, and a device slidably arranged with respect to the vehicle body. It is arranged between the moving member 5 fixed to the slide door (not shown) provided with the above.

The wire harness 1 electrically connects the vehicle body side and the slide door side, supplies electric power from the vehicle body side to the slide door side, and transmits a signal between the vehicle body side and the slide door side.

The fixing member 3 to which the wire harness 1 is connected includes a body-side protector 15 and a body-side rotor 17, and the moving member 5 includes a door-side protector 19 and a door-side rotor 21.

The body-side protector 15 is fixed to the vehicle body via a fixing means such as a bolt, and one end side of an electric wire (not shown) of the wire harness 1 is inserted.

The body-side rotor 17 is rotatably provided at the insertion portion of the electric wire of the body-side protector 15, holds one end side of the wire harness 1, and is rotated by the movement of the slide door.

The door-side protector 19 is fixed to the slide door via a fixing means such as a bolt, and the other end side of the electric wire of the wire harness 1 is inserted.

The door-side rotor 21 is rotatably provided at the insertion portion of the electric wire of the door-side protector 19, the other end side of the wire harness 1 is arranged, and is rotated by the movement of the slide door.

The wire harness 1 arranged between the fixing member 3 provided on the vehicle body side and the moving member 5 provided on the slide door side as described above includes an electric wire, a corrugated tube 7, and a bending restricting member 11. I have.

The electric wire transmits a signal between the power supply line that supplies power from the power supply arranged in the vehicle body to the equipment arranged in the sliding door and the control circuit arranged in the vehicle body and the equipment arranged in the sliding door. It consists of a bundle of electric wires in which a plurality of electric wires are bundled, such as a signal line.

Both ends of this electric wire pass through the body-side protector 15 and the door-side protector 19, respectively, and are electrically connected to a power supply and a control circuit arranged in the vehicle body, equipment arranged in the sliding door, and the like.

A corrugated tube 7 is arranged on the outer periphery of the electric wire arranged between the fixing member 3 and the moving member 5 to prevent direct interference between the electric wire and the peripheral member.

The corrugated tube 7 is formed in a tubular shape, and has a bellows portion 23 that is projected toward the inner and outer circumferences and is arranged in a plurality of length directions.

In this corrugated tube 7, the bellows portion 23 on one end side (here, the fixing member 3 side) engages with a plurality of uneven portions 25 provided on the body side rotor 17, and the other end side (here, the moving member 5 side). The bellows portion 23 of the above engages with a plurality of uneven portions 26 provided on the door side rotor 21, and is arranged between the fixing member 3 and the moving member 5.

In such a corrugated tube 7 and the electric wire, the slide door is fully opened while rotating the body side rotor 17 and the door side rotor 21 by the movement of the slide door with respect to the vehicle body, that is, the movement of the moving member 5 with respect to the fixing member 3. It is moved while curving between the position (here, when the moving member 5 is located on the left side in FIG. 1) and the fully closed position of the sliding door (here, when the moving member 5 is located on the right side in FIG. 1). ..

If the corrugated tube 7 and the electric wire that are curved due to the movement of the moving member 5 are excessively curved, the corrugated tube 7 and the electric wire may have a bending habit or may interfere with the peripheral members. May affect.

Therefore, inside the corrugated tube 7, an electric wire and a bending regulating member 11 that regulates excessive bending of the corrugated tube 7 are arranged.

The bending restricting member 11 includes a plurality of regulating portions 27 and a pair of inserting portions 13, 13.

The plurality of regulating portions 27 are formed of one member continuous with the linear member 31 that can be flexed via the connecting portion 29, and a plurality of the regulating portions 27 are arranged in the length direction of the linear member 31.

The outer diameter of the regulating portion 27 including the regulating portion 27, the connecting portion 29, and the linear member 31 is set to be smaller than the inner diameter of the corrugated tube 7 so that the regulating portion 27 can be arranged in the corrugated tube 7.

On both side surfaces of the plurality of restricting portions 27 in the length direction, inclined surfaces 33 and 33 inclined in a mountain shape and contact surfaces 35 formed in a straight line are provided, respectively.

The inclined surfaces 33, 33 and the contact surface 35 are arranged so as to face each other with the adjacent regulating portions 27, 27 arranged.

When the electric wire and the corrugated tube 7 are curved within a predetermined curvature, the inclined surfaces 33 and 33 and the contact surface 35 arranged in this way do not come into contact with each other, and the electric wire and the corrugated tube 7 are allowed to be curved. do.

On the other hand, when the electric wire and the corrugated tube 7 try to bend beyond a predetermined curvature, the inclined surface 33 in the bending direction and the contact surface 35 of the inclined surfaces 33 and 33 come into contact with each other, and that of the electric wire and the corrugated tube 7. Regulate the above curvature.

By restricting the excessive bending of the electric wire and the corrugated tube 7 by the regulating portion 27 in this way, it is possible to prevent adverse effects such as bending habits on the electric wire and the corrugated tube 7 and interference of the corrugated tube 7 with peripheral members. Can be done.

A pair of insertion portions 13, 13 are provided on both ends of the plurality of regulation portions 27.

The pair of insertion portions 13, 13 are arranged at both ends of the plurality of restricting portions 27 in the length direction, and are formed of one continuous member with the linear member 31.

On the facing surfaces of the pair of insertion portions 13 and 13 with the regulating portions 27 and 27, the contact surface 35 facing the inclined surfaces 33 and 33 of the regulating portion 27 and the contact surface 35 of the regulating portion 27 face each other, respectively. The inclined surfaces 33 and 33 are provided.

Such a pair of insertion portions 13, 13 are arranged so as to be exposed to the outside from both ends in the length direction of the corrugated tube 7 in a state where the bending restricting member 11 is arranged in the corrugated tube 7.

The outer diameter of the pair of insertion portions 13, 13 is smaller than the inner diameter of the corrugated tube 7 so that the bending restricting member 11 can be inserted into the corrugated tube 7 from any side in the length direction of the bending restricting member 11. It has been set.

By setting the outer diameters of the pair of insertion portions 13 and 13 in this way, it can be inserted into the corrugated tube 7 without worrying about the orientation of the bending restricting member 11, facilitating the assembling work. Assemblability can be improved.

The pair of insertion portions 13 and 13 are each provided with a fixing portion 9 fixed to the fixing member 3.

The fixing portion 9 has a convex portion 37 provided on the body-side rotor 17 of the fixing member 3, and recesses 39 and 39 provided on the pair of insertion portions 13 and 13, respectively, and capable of engaging with the convex portion 37.

In the fixing portion 9, when one of the insertion portions 13 of the pair of insertion portions 13 and 13 is arranged on the fixing member 3 side, the concave portion 39 of the one insertion portion 13 is the convex portion of the body side rotor 17. It is engaged with 37 and one end side of the bending restricting member 11 is fixed to the fixing member 3.

On the other hand, the position of the other insertion portion 13 of the other insertion portion 13 is changed due to the bending displacement of the wire harness 1 due to the movement of the moving member 5 with respect to the fixing member 3 without the recess 39 being engaged in the door side rotor 21. Will be done.

By providing the recesses 39 constituting the fixing portions 9 in the pair of inserting portions 13 and 13, even if the bending restricting member 11 is inserted into the corrugated tube 7 from any side, the recesses 39 are fixed to the fixing member 3. It can be engaged with the convex portion 37 of the above, and the assembling property can be improved.

In such a wire harness 1, a pair of insertion portions 13 and 13 having an outer diameter set to be smaller than the inner diameter of the corrugated tube 7 so that the bending restricting member 11 can be inserted into the corrugated tube 7 are provided on both ends of the bending restricting member 11. Since each member is provided as one continuous member with the bending restricting member 11, the bending regulating member 11 can be inserted into the corrugated tube 7 from either side.

Therefore, in such a wire harness 1, when inserting the bending restricting member 11 into the corrugated tube 7, it is not necessary to worry about the orientation of the bending restricting member 11, and the assembling work can be easily performed. It is possible to improve the attachment.

Further, since the pair of insertion portions 13 and 13 are provided with fixing portions 9 and 9, respectively, no matter which side the bending restricting member 11 is inserted into the corrugated tube 7, the fixing portion 9 is used. The bending restricting member 11 can be fixed to the fixing member 3.

(Second Embodiment)
The second embodiment will be described with reference to FIG.

In the wire harness 101 according to the present embodiment, an engaging member 103 formed separately from the bending restricting member 11 and provided with the fixing portion 9 is fixed to at least one of the pair of insertion portions 13 and 13. ing.

In addition, in the same configuration as the first embodiment, the same reference numerals as those of the first embodiment are described, and the functional description thereof is omitted with reference to the first embodiment, but it can be obtained because it has the same configuration. The actions and effects are the same.

As shown in FIG. 4, an engaging portion 105 in which an engaging member 103 formed separately from the bending restricting member 11 is engaged with the pair of inserting portions 13 and 13 (only one of the insertion portions 13 is shown). Is provided.

The engaging member 103 is formed with a recess 39 that is engaged with a convex portion 37 provided on the body-side rotor 17, and is fixed by the convex portion 37 of the body-side rotor 17 and the concave portion 39 of the engaging member 103. It constitutes 9.

Such an engaging member 103 is integrally fixed to an insertion portion 13 located on the fixing member 3 side via an engaging portion 105 in a state where the bending restricting member 11 is arranged in the corrugated tube 7, and is integrally fixed to the recess. 39 is engaged with the convex portion 37 to fix the bending restricting member 11 to the fixing member 3.

By providing the engaging member 103 provided with the recess 39 constituting the fixing portion 9 separately from the bending restricting member 11, the bending regulating member 11 and the fixing portion 9 are designed independently. This makes it possible to improve the degree of freedom in designing the bending restricting member 11 and the fixing portion 9.

Therefore, the fixing portion 9 is engaged with the convex portion 37 and the concave portion 39, but is not limited to this, and for example, the protrusion length equivalent to that of the bellows portion 23 of the corrugated tube 7 is applied to the outer periphery of the engaging member 103. A convex portion having a ridge may be provided, and the convex portion may be engaged with the uneven portion 25 of the body-side rotor 17 to form the fixing portion 9.

Even when the engaging member 103 is provided with a convex portion having a protruding length equivalent to that of the bellows portion 23 of the corrugated tube 7, the bending restricting member 11 is inserted into the corrugated tube 7 of the engaging member 103. Since it is assembled to the bending restricting member 11 in the state of being in the state, the assembling property of the bending regulating member 11 with respect to the corrugated tube 7 is not deteriorated.

In such a wire harness 101, since the engaging member 103 formed separately from the bending restricting member 11 and provided with the fixing portion 9 is fixed to at least one of the pair of insertion portions 13 and 13. The bending restricting member 11 and the fixing portion 9 can be designed independently, and the degree of freedom in designing the bending regulating member 11 and the fixing portion 9 can be improved.

In the wire harness according to the embodiment of the present invention, the pair of insertion portions to which the engaging member is fixed are not provided with the recesses constituting the fixing portion, but the present invention is not limited to this, and any of the pair of insertion portions. Even when the engaging member is fixed to one of them, the fixing portion may be provided in the pair of insertion portions.

Further, the end portion of the bending restricting member on the moving member side is not fixed to the moving member, but the present invention is not limited to this, and the fixed portion of the insertion portion arranged on the moving member side may be fixed to the moving member. good.

In this case, the engaging member may be fixed to the insertion portion arranged on the moving member side to form the fixing portion on the moving member side.

1,101 ... Wire harness 3 ... Fixing member 5 ... Moving member 7 ... Corrugated tube 9 ... Fixing part 11 ... Curve regulation member 13 ... Inserting part 103 ... Engaging member

Claims (3)

An electric wire whose one end side is arranged on the fixed member and the other end side is arranged on the moving member,
A corrugated tube that covers the outer circumference of the electric wire and
A bending regulating member whose one end side is fixed to the fixing member via a fixing portion and is arranged inside the corrugated tube to regulate excessive bending between the electric wire and the corrugated tube.
A pair of insertion portions provided on both ends of the bending restricting member as one member continuous with the bending regulating member and having an outer diameter set to be smaller than the inner diameter of the corrugated tube so that the bending regulating member can be inserted into the corrugated tube. When,
A wire harness characterized by having. The wire harness according to claim 1.
A wire harness characterized in that each of the pair of insertion portions is provided with the fixing portion. The wire harness according to claim 1 or 2.
A wire harness characterized in that an engaging member formed separately from the bending restricting member and provided with the fixing portion is fixed to at least one of the pair of the insertion portions.

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