JP2011036012A - Wire harness - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wire harness which can be housed without being hooked on an electronic components in an engine room. <P>SOLUTION: The wire harness 1 includes an electric wire bundle 2 binding a plurality of electric wires 2a, a bellows-like tube 3 in which the electric wire bundle 2 is inserted therethrough and convex portions 3a and concave portions 3b are alternately disposed along a longitudinal direction. The wire harness 1 is provided with a routing member 4 formed with rigidity higher than that of the tube 3, positioned outside the electric wire bundle 2 and inside the tube 3, and used to route the electric wire bundle 2 along a predetermined routing path. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a wire harness that supplies electric power to an electronic device in an engine room of an automobile.

  A wide variety of electronic devices are mounted on automobiles as moving bodies. In order to supply electric power to these various electronic devices, a wire harness is disposed in an appropriate location between the power source and the electronic device in the automobile.

  A wire harness 101 shown in FIG. 3 is attached to a vehicle body panel constituting a vehicle body of an automobile and supplies electric power to various electronic devices mounted on the automobile. The wire harness 101 has a wire bundle (not shown) configured by bundling a plurality of wires, a corrugated tube 103 through which the wire bundle is inserted, and a corrugated tube 103 through which the wire bundle is inserted to a vehicle body panel. In addition, a protector 104 is provided for routing the corrugated tube 103 through which the wire bundle is inserted along a predetermined routing path.

  The protector 104 is made of an insulating synthetic resin. The protector 104 includes a main body portion 105 formed in a bowl shape having a U-shaped cross section and a lid portion 106 attached so as to cover the main body portion 105. A plurality of lock receiving portions 107 are provided on the outer surface of the main body portion 105 at intervals. On the outer surface of the lid portion 106, a lock claw 108 for locking the lock receiving portion 107 of the main body portion 105 is provided. Thus, in the protector 104, after the corrugated tube 103 into which the wire bundle is inserted is accommodated, the lock receiving portion 107 of the main body portion 105 is locked to the lock claw 108 of the lid portion 106. Thus, the protector 104 routes the corrugated tube 103 through which the wire bundle is inserted along a predetermined routing route.

JP 2007-306776 A

  However, when the conventional wire harness 101 is arranged in an engine room in which a plurality of electronic devices are accommodated, a lock claw 108 or a lock receiving portion provided on the outer surface of the wire harness 101 in the plurality of electronic devices or the like. 107 may be caught, and it is difficult to accommodate the wire harness 101 in the engine room.

  Then, this invention pays attention to the above problems, and makes it a subject to provide the wire harness which can be accommodated without being caught in the electronic device etc. which were distribute | arranged in the engine room.

  The wire harness according to claim 1, which has been made in order to solve the above-described problem, includes an electric wire bundle in which a plurality of electric wires are bundled, the electric wire bundle is inserted, and convex portions and concave portions are alternately arranged along the longitudinal direction. A wire harness provided with a bellows-like tube, wherein the wire bundle is formed to be higher in rigidity than the tube and positioned outside the wire bundle and positioned inside the tube; It is characterized by having a routing member for routing the bottle along a predetermined routing route.

  The wire harness according to claim 2 is characterized in that, in the wire harness according to claim 1, the routing member includes a main body portion whose cross-sectional shape is formed in an arc shape.

  The wire harness according to claim 3 is the wire harness according to claim 1 or 2, wherein the rib is provided on the outer surface of the main body portion so as to protrude from the outer surface and enters the convex portion of the tube. It is characterized by having.

  The wire harness according to claim 4 is the wire harness according to any one of claims 1 to 3, wherein the wire harness is connected to an end portion in a longitudinal direction of the main body portion and is narrower than the main body portion. It is characterized by having a protruding part.

  As described above, according to the first aspect of the present invention, the wire harness is formed to have higher rigidity than the tube, and is positioned outside the wire bundle and positioned inside the tube. A routing member for routing the wire bundle along a predetermined routing route is provided. That is, the routing member is provided between the wire bundle and the tube. For this reason, a wire harness can be assembled | attached in an engine room, without being caught in the electronic device etc. which were distribute | arranged in the engine room.

  According to invention of Claim 2, the cross-sectional shape is formed in the circular arc shape in the main-body part of the routing member of a wire harness. For this reason, while being able to reduce the number of parts of the said routing member, the material yield at the time of manufacturing the said routing member can improve, and material cost can be reduced. Thus, the wire harness can be reduced in size.

  According to invention of Claim 3, the main-body part of the routing member of a wire harness is provided with the rib. A rib penetrates into the convex part of a tube, and attaches the routing member in which the wire bundle was accommodated to a tube.

  According to the invention described in claim 4, the routing member includes an overhanging portion that is continuous with the end portion in the longitudinal direction of the main body portion and is narrower than the main body portion. For this reason, the tube is easily put on the routing member to which the wire bundle is fixed without being caught by the routing member in which the wire bundle is accommodated.

It is explanatory drawing for demonstrating the assembly operation | work of the wire harness concerning one Embodiment of this invention, and is a figure which shows a mode that a tube is attached to a routing member. It is sectional drawing which follows the AA line of the wire harness shown by FIG. It is a perspective view of the conventional wire harness.

  Hereinafter, a wire harness according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG. 1 is an explanatory diagram for explaining assembly work of the wire harness 1 and shows a state in which the tube 3 is attached to the routing member 4. FIG. 2 is a cross-sectional view taken along line AA of the wire harness 1 shown in FIG. In FIG. 1, the wire bundle 2 is omitted.

  The wire harness 1 of the present invention is attached to a vehicle body panel constituting a vehicle body of an automobile and supplies electric power to various electronic devices mounted on the automobile. The wire harness 1 includes an electric wire bundle 2 in which a plurality of electric wires 2a are bundled, a tube 3 through which the electric wire bundle 2 is inserted, and an arrangement that is positioned outside the electric wire bundle 2 and inside the tube 3. And a member 4.

  The electric wire 2a is a covered electric wire provided with a conductive core wire and a covering portion covering the core wire. The electric wire bundle 2 is configured by bundling a plurality of such electric wires 2a. In the present invention, the number of the electric wires 2a inserted through the tube 3 may be one or plural.

  The corrugated tube 3 as the tube 3 is made of an admixture containing polypropylene, polypropylene, or the like, or a synthetic resin such as rubber or ethylene, and is formed in a cylindrical shape. Further, the corrugated tube 3 is formed into a bellows shape in which convex portions 3a and concave portions 3b having smaller inner and outer diameters than the convex portions 3a are alternately arranged in the axial direction, and can be bent (elastically deformed). In such a corrugated tube 3, the above-described wire bundle 2 is inserted inside to protect the wire bundle 2. Two corrugated tubes 3 are provided.

  The distribution member 4 is made of an insulating synthetic resin and is formed by well-known injection molding. The routing member 4 is formed with higher rigidity than the corrugated tube 3 described above. Thus, the routing member 4 accommodates the wire bundle 2 and causes the wire bundle 2 to be routed along a predetermined routing route. In addition, the routing member 4 includes a main body portion 41 having a cross-sectional arc shape and a linear shape, an overhang portion 42, a branch portion 43, and a rib 44.

  Two overhang portions 42 are provided. The width of the overhang portion 42 is formed to be narrower than the width of the main body portion 41. One of the two overhang portions 42 is formed in a straight line shape and continues to one end portion 41 a in the longitudinal direction of the main body portion 41. Of the two overhanging portions 42, the other overhanging portion 42b is formed in a square shape and continues to the other end portion 41b of the main body portion 41 away from the one end portion 41a. In addition, the “end portion” indicated in the scope of the claims is the one end portion 41 a in the longitudinal direction of the main body portion 41 described above.

  In addition, one of the two corrugated tubes 3 described above is inserted into the end portion of the projecting portion 42a away from the main body portion 41. The other of the two corrugated tubes 3 described above is inserted into the end portion of the projecting portion 42b away from the main body portion 41.

  The branch portion 43 is formed in a bowl shape whose cross-sectional shape is an arc shape. The branch portion 43 is provided at a substantially central portion in the longitudinal direction of the main body portion 41 and protrudes in a direction substantially orthogonal to the longitudinal direction of the main body portion 41. In the branch part 43, the electric wire 2a branched from the electric wire bundle 2 accommodated in the main body part 41 is accommodated.

  Two ribs 44 are provided in the main body 41. The two ribs 44 are provided in the vicinity (that is, both sides) of the branch portion 43 of the main body portion 41. The rib 44 is provided so as to protrude from the outer surface of the main body 41 and extends along the circumferential direction of the main body 41. Such ribs 44 enter the convex portions 3 a of the corrugated tube 3. Thus, the rib 44 attaches the corrugated tube 3 to the main body 41 (that is, the routing member 4).

  Then, the assembly procedure of the wire harness 1 mentioned above is demonstrated. First, the electric wire bundle 2 is accommodated in the main body portion 41 of the routing member 4, and the electric wire 2 a branched from the electric wire bundle 2 is accommodated in the branch portion 43. Thus, the routing member 4 in which the wire bundle 2 is accommodated is fixed to the routing member 4 by the adhesive tape 9a being wound around the outer periphery thereof, and the wire bundle 2 is fixed to the predetermined routing. Arrange along the route.

  Then, one of the two corrugated tubes 3 is inserted from the end of the projecting portion 42a of the routing member 4 to which the wire bundle 2 is fixed. Further, the other of the two corrugated tubes 3 is inserted from the end portion of the protruding portion 42b of the routing member 4 to which the wire bundle 2 is fixed. Then, after the rib 44 of the routing member 4 has entered the convex portion 3 a of the corrugated tube 3, the adhesive tape 9 b is wound around the outer periphery of the routing member 4 to which the wire bundle 2 is fixed and the corrugated tube 3. Thus, the corrugated tube 3 is fixed to the routing member 4 to which the wire bundle 2 is fixed, and the wire harness 1 is completed.

  According to the above-described embodiment, the wire harness 1 is formed to be higher in rigidity than the corrugated tube 3, and is positioned outside the wire bundle 2 and positioned inside the corrugated tube 3. A routing member 4 for routing along a predetermined routing route is provided. That is, the routing member 4 is provided between the wire bundle 2 and the corrugated tube 3. For this reason, the wire harness 1 can be assembled | attached in an engine room, without being caught in the electronic device etc. which were distribute | arranged in the engine room.

  Moreover, the cross-sectional shape of the main body portion 41 of the routing member 4 of the wire harness 1 is formed in an arc shape. For this reason, while being able to reduce the number of parts of the routing member 4, the material yield at the time of manufacturing the routing member 4 is improved, and the material cost can be reduced. Thus, the wire harness 1 can be reduced in size.

  In addition, the routing member 4 of the wire harness 1 includes a rib 44. The rib 44 attaches to the corrugated tube 3 the routing member 4 in which the wire bundle 2 is accommodated by entering the convex portion 3a of the corrugated tube 3.

  Further, the routing member 4 includes an overhanging portion 42 a that is continuous with the end portion 41 a in the longitudinal direction of the main body portion 41 and is narrower than the main body portion 41. For this reason, the corrugated tube 3 is easily covered with the routing member 4 to which the wire bundle 2 is fixed without being caught by the routing member 4 in which the wire bundle 2 is accommodated.

  In the above-described embodiment, the “end” shown in the scope of the claims corresponds to the one end 41 a in the longitudinal direction of the main body 41. The end 41b may be used. In the present invention, both the one end portion 41a and the other end portion 41b in the longitudinal direction of the main body portion 41 may be “end portions” shown in the scope of the claims.

  Further, the above-described embodiments are merely representative forms of the present invention, and the present invention is not limited to the embodiments. That is, various modifications can be made without departing from the scope of the present invention.

1 Wire harness 2 Wire bundle 3 Corrugated tube (tube)
3a Convex 3b Concave 4 Arrangement member 41a One end (end)
42a Overhanging portion 44 rib

Claims (4)

A wire bundle in which a plurality of wires are bundled;
In the wire harness comprising the bellows-like tube in which the wire bundle is inserted and the convex portions and the concave portions are alternately arranged along the longitudinal direction,
A routing member that is formed with higher rigidity than the tube and is positioned outside the wire bundle and positioned inside the tube to route the wire bundle along a predetermined routing route. A wire harness characterized by comprising.   The wire harness according to claim 1, wherein the routing member includes a main body portion whose cross-sectional shape is formed in an arc shape.   The wire harness according to claim 1, further comprising a rib that protrudes from the outer surface of the main body portion and enters the convex portion of the tube.   The wire harness according to any one of claims 1 to 3, further comprising an overhang portion that is continuous with an end portion in a longitudinal direction of the main body portion and narrower than the main body portion. .

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