JP5825196B2 - Wire Harness - Google Patents

Description

  The present invention relates to a technique for piping a washer tube or the like to a vehicle or the like.

  Conventionally, as a piping structure of a washer hose for an automobile, there is one disclosed in Patent Document 1. In patent document 1, the washer hose is arrange | positioned along the wire harness. In addition, at the portion where the wire harness is refracted, both ends of the curved portion of the washer hose are taped and fixed to the wire harness so that the washer hose is not flattened.

Japanese Patent Laid-Open No. 11-43021

  However, the technique disclosed in Patent Document 1 has a problem that it is difficult to fix the washer hose in a state of being positioned with respect to the wire harness. This is because the washer hose may be crushed if the tape is firmly fixed, and the washer hose is likely to be displaced if the tape is loosely fixed. If the washer hose deviates from a predetermined position of the wire harness, the washer hose may come into contact with a peripheral member of the vehicle with the wire harness disposed in the vehicle or the like, and the washer hose may be crushed.

  Then, an object of this invention is to enable it to arrange | position the said tube along a wire harness main body, suppressing the collapse of a tube.

  In order to solve the above-described problem, a wire harness according to a first aspect includes a wire harness body, a corrugated tube that covers the wire harness body, a tube through which a liquid can pass, and a state in which the corrugated tube is covered. A tubular protective member disposed in the tube.

  A second aspect is a wire harness according to the first aspect, wherein a slit is formed along the longitudinal direction of the corrugated tube, and the tubular protective member includes a tube main body portion covering an outer periphery of the tube, And a slit mounting portion that protrudes from the outer peripheral side of the tube main body portion and can be attached to the slit.

  A 3rd aspect is a wire harness which concerns on a 2nd aspect, Comprising: A slit is formed in the said pipe | tube main body part along the longitudinal direction, The said slit attachment part is a slit of the said pipe | tube main body part. A pair of edge locking portions that can be locked to both side edges of the slit of the corrugated tube in a state of being disposed inside the slit.

  According to the first aspect, since the tube is disposed in the corrugated tube in a state covered with the tubular protective member, the tube is prevented from being crushed by the tubular protective member and the corrugated tube. It can be disposed along the wire harness body.

  According to the 2nd aspect, since a tubular protection member is attached to the slit of a corrugated tube via a slit attaching part, a tubular protective member and a tube can be maintained in a fixed position in a corrugated tube.

  According to the third aspect, since the slit of the tube main body is disposed inside the slit of the corrugated tube, even if the liquid leaks from the tube, the liquid is externally passed through the slit of the corrugated tube. And the wire harness is not easily exposed to the liquid.

It is a schematic perspective view which shows the wire harness which concerns on embodiment. It is a schematic sectional drawing which shows a wire harness. It is a schematic perspective view which shows a tubular protective member. It is explanatory drawing which shows the example of a manufacturing method of a wire harness. It is explanatory drawing which shows the other example of a manufacturing method of a wire harness.

  Hereinafter, the wire harness and the tubular protective member according to the embodiment will be described.

  1 is a schematic perspective view showing the wire harness 10, FIG. 2 is a schematic cross-sectional view showing the wire harness 10, and FIG. 3 is a schematic perspective view showing the tubular protective member 20.

  The wire harness 10 includes a wire harness body 12, a corrugated tube 14, a tube 18, and a tubular protective member 20.

  The wire harness body 12 includes at least one electric wire 12a. Here, the wire harness body 12 has a configuration in which a plurality of electric wires 12a are bundled. The binding of the wire harness body 12 may be realized by the corrugated tube 14 or may be performed by a binding tool such as another adhesive tape. Further, the wire harness body 12 may be branched at a portion other than the portion covered by the corrugated tube 14. Further, other optical cables or the like may be bundled with the wire harness body 12. The said wire harness main body 12 is used as a wiring material which electrically connects the electric devices in a vehicle etc. by arrange | positioning along a predetermined wiring path | route in a vehicle etc.

  When the wire harness body 12 is disposed in a vehicle or the like, the wire harness body 12 is covered with the corrugated tube 14 in order to prevent the wire harness body 12 from interfering with the vehicle periphery. The corrugated tube 14 is a cylindrical member in which the annular convex portions 15 and the annular concave portions 16 are alternately formed along the longitudinal direction (see FIG. 1), and is formed of a resin or the like. Since the corrugated tube 14 is easily elastically deformed at a step portion between the annular convex portion 15 and the annular concave portion 16, the corrugated tube 14 itself has a property of being easily bent and deformed as a whole. Usually, as the corrugated tube 14, a tube having an inner diameter larger than the outer diameter of the portion of the wire harness main body 12 to be mounted (usually somewhat larger) is used.

  A slit 17 is formed on one side of the corrugated tube 14 along the longitudinal direction thereof. And the wire harness main body 12 can be easily arrange | positioned in the corrugated tube 14 so that the slit 17 may open.

  In addition, the part by which the corrugated tube 14 is mounted | worn in the wire harness main body 12 should just be at least one part of the wire harness main body 12, and may be a part of the wire harness main body 12, or the substantially whole. .

  The tube 18 is a member that can pass liquid. As such a tube 18, a tube 18 through which a linear washer fluid such as a front window or a rear window in a vehicle is passed is assumed. The tube 18 is formed of a flexible resin or the like so as to be easily bent.

  The tubular protective member 20 is a member disposed in the corrugated tube 14 in a state of covering the tube 18.

  More specifically, the tubular protection member 20 is a member integrally formed of an elastomer such as rubber, and includes a tube main body portion 22 and a slit attachment portion 24.

  The tube body 22 is formed in a tube shape having an inner diameter that covers the outer periphery of the tube 18, that is, an inner diameter that is larger than the outer diameter of the tube 18. The outer diameter of the tube main body 22 is smaller than the inner diameter of the corrugated tube 14, and the wire harness main body 12 can be accommodated in another space in the corrugated tube 14 in a state where the tube main body 22 is disposed in the corrugated tube 14. It is like that.

  The slit attaching portion 24 is provided so as to protrude from the outer peripheral side of the tube main body portion 22 and is configured to be attachable to the slit 17 of the corrugated tube 14.

  More specifically, a slit 23 is formed in the tube main body portion 22 along the longitudinal direction thereof. The slit mounting portion 24 includes a pair of edge locking portions 25 formed along the both side edge portions of each of the side edge portions sandwiching the slit 23 in the tube main body portion 22. The edge portion locking portion 25 includes an outer peripheral side extending piece 25a and a folded piece 25b. The outer peripheral extending piece 25 a is formed in a shape extending from the side edge portion of the tube main body portion 22 toward the radially outer peripheral side of the tube main body portion 22. The folded piece 25b is formed in a shape extending from the distal end portion of the outer peripheral side extending piece 25a so as to be folded back to the opposite side to the abutting direction of the pair of edge portion locking portions 25. A gap is formed between the outer peripheral portion of the tube main body portion 22 and the folded piece 25b so as to sandwich both side edges of the slit 17 of the corrugated tube 14. The gap width between the outer peripheral portion of the tube main body portion 22 and the folded piece 25b is the thickness dimension of the corrugated tube 14 (more specifically, the outermost peripheral portion of the annular convex portion 15 and the annular concave portion 16 in the radial direction of the corrugated tube 14). It is set to a dimension that is the same as or larger (slightly larger) or smaller (slightly smaller) than that (difference from the innermost peripheral portion). The pair of edge locking portions 25 are arranged so that both side edges of the slit 17 of the corrugated tube 14 are sandwiched between the folded pieces 25b of the pair of edge locking portions 25 and the outer peripheral portion of the tube main body portion 22. The corrugated tube 14 can be locked to both side edges of the slit 17. In this state, the slit 23 of the tube main body portion 22 is disposed inside the slit 17 of the corrugated tube 14. For this reason, the slit 23 of the tube main body portion 22 is in a state of opening to the outside via the slit 17 of the corrugated tube 14 while being sandwiched between the pair of edge locking portions.

  The entire longitudinal direction of the tube 18 does not need to be covered with the tubular protective member 20, and at least a part of the tube 18 may be covered with the tubular protective member 20. Further, the entire longitudinal direction of the tubular protective member 20 does not need to be covered with the corrugated tube 14, and at least a part of the tubular protective member 20 may be covered with the corrugated tube 14.

  An example of a method for manufacturing the wire harness 10 will be described.

  First, in the example shown in FIG. 4, the tube 18 is disposed in the tubular protective member 20. This operation may be performed by inserting the tube 18 from one side opening of the tubular protection member 20 or by opening the slit 23 of the tubular protection member 20 and inserting the tube 18 into the tubular protection member 20. It may be broken.

  Next, the tubular protective member 20 is disposed in the corrugated tube 14. The operation at this time may be performed by inserting the tubular protective member 20 from one end side of the corrugated tube 14, or the slit 17 of the corrugated tube 14 is opened and the tubular protective member 20 is inserted into the corrugated tube 14. It may be performed by the work to do. In addition, it is good for the wire harness main body 12 to be previously arrange | positioned in the corrugated tube 14. FIG.

  In the example shown in FIG. 5, first, the tubular protective member 20 is disposed in the corrugated tube 14. The operation at this time may be performed by inserting the tubular protective member 20 from one end side of the corrugated tube 14, or the slit 17 of the corrugated tube 14 is opened and the tubular protective member 20 is inserted into the corrugated tube 14. It may be performed by the work to do. In addition, it is good for the wire harness main body 12 to be previously arrange | positioned in the corrugated tube 14. FIG.

  Next, the tube 18 is disposed in the tubular protective member 20. This operation may be performed by inserting the tube 18 from one side opening of the tubular protective member 20, or by opening the slit 17 of the corrugated tube 14 and the slit 23 of the tubular protective member 20 to connect the tube 18 to the tubular protective member 20. It may be performed by inserting into the inside.

  According to the wire harness 10 and the tubular protective member 20 configured as described above, the tube 18 is disposed in the corrugated tube 14 while being covered with the tubular protective member 20. For this reason, the corrugated tube 14 and the tubular protective member 20 can suppress the crushing of the tube 18 due to the contact between the wire harness 10 and peripheral components. Further, in the corrugated tube 14, the tubular protective member 20 can suppress the collapse of the tube 18 due to the compression of the wire harness body 12, the biting in the slit 17, and the like. Thereby, the said tube 18 can be arrange | positioned along the wire harness main body 12, suppressing the collapse of the tube 18. As shown in FIG. In addition, as a result of suppressing the collapse of the tube 18, it is possible to maintain a state in which the tube 18 can easily pass liquid.

  Moreover, since the tubular protective member 20 is attached to the slit 17 of the corrugated tube 14 via the slit attaching portion 24, the tubular protective member 20 and the tube 18 can be maintained at a fixed position in the corrugated tube 14. Thereby, the tube 18 becomes difficult to meander in the corrugated tube 14, and the path length of the tube 18 can be made constant. Moreover, in the corrugated tube 14, the positional relationship between the wire harness body 12 and the tube 18 is easily stabilized, and the tube 18 is more difficult to be crushed.

  Further, since the tube 18 and the tubular protective member 20 are disposed at a position close to the slit 17 of the corrugated tube 14, it is easy to take out and replace the tube 18. Thereby, for example, even when the tube 18 which is an incorrect part such as a difference in length is assembled to the corrugated tube 14, the wire harness main body 12 remains in the corrugated tube 14, and the tube 18. Or the tube 18 and the tubular protective member 20 can be removed from the corrugated tube 14 together, etc. As a result, the tube 18 can be easily removed and replaced.

  Further, since the slit 23 of the tube main body portion 22 of the tubular protection member 20 is disposed inside the slit 17 of the corrugated tube 14, even if the liquid leaks from the tube 18, the liquid remains in the tube main body portion 22. Leaks out of the tubular protective member 20 through the slit 23 and the slit 17 of the corrugated tube 14. For this reason, there exists an advantage that the wire harness main body 12 is hard to be exposed to the liquid which leaked from the tube 18. FIG.

  But the tubular protection member 20 which covers the tube 18 does not need to be the said structure. The tubular protective member may have a simple tube shape in which the slit 23 and the edge locking portion 25 are omitted.

  As described above, the present invention has been described in detail. However, the above description is illustrative in all aspects, and the present invention is not limited thereto. It is understood that countless variations that are not illustrated can be envisaged without departing from the scope of the present invention.

DESCRIPTION OF SYMBOLS 10 Wire harness 12 Wire harness main body 14 Corrugated tube 17 Slit 18 Tube 20 Tubular protection member 22 Pipe main body part 23 Slit 24 Slit attachment part 25 Edge part locking part 25a Outer peripheral side extension piece 25b Folding piece

Claims (3)

A wire harness body,
A corrugated tube covering the wire harness body;
A tube through which liquid can pass;
In a state of covering the tube, a tubular protective member disposed in the corrugated tube,
Wire harness comprising The wire harness according to claim 1,
A slit is formed along the longitudinal direction of the corrugated tube,
The tubular protection member is a wire harness including a tube main body portion that covers an outer periphery of the tube, and a slit mounting portion that protrudes from the outer peripheral side of the tube main body portion and can be attached to the slit. The wire harness according to claim 2,
A slit is formed along the longitudinal direction of the tube main body,
The slit mounting portion includes a pair of edge locking portions that can be locked to both side edge portions of the slit of the corrugated tube in a state where the slit of the tube main body portion is disposed inside the slit of the corrugated tube. ,Wire Harness.

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