JP5774932B2 - Wire harness - Google Patents

Description

  The present invention relates to a wire harness in which a wiring clip to be locked in a mounting hole of a panel is formed integrally with an electric wire.

  Various electronic devices and electrical components are mounted on automobiles and the like. A wire harness is used as means for transmitting electric power from a power source such as a battery or a control signal from a control device to these electronic devices and electrical components.

  The wire harness is routed on a panel constituting a vehicle body such as an automobile. Various wire harnesses provided with wiring clips that are locked in the mounting holes of the panel have been proposed (see, for example, Patent Documents 1 to 4). Further, there has been proposed one in which a slit is provided at an end portion of a tube provided in a wire harness and the end portion of the tube is abutted and locked (for example, refer to Patent Document 5).

  In a wire harness provided with a tube, both ends of the tube and the wire harness are wound around each other with an adhesive tape such as a tape for wire harness and taped.

JP 2002-315164 A JP 2005-26178 A JP 2006-14569 A Japanese Patent Laid-Open No. 11-205943 JP 2002-93518 A

  However, since the wire harness described above is taped while an operator fixes both ends of the tube, the manufacturing cost of the wire harness is increased. In addition, when a single worker tapes both ends of the tube, the work time required for the tape fastening becomes longer.

  Moreover, since the tube which is abutted and locked is provided with a slit at the end of the tube, a step of forming a slit in the tube is required. Moreover, since the slit is provided in the edge part of the tube, the elasticity of a tube differs by the one end side and other end side of a slit, and the insertion property of a tube falls.

  An object of the present invention is to provide a wire harness in which a wiring clip formed so as to be latchable in a mounting hole of a panel is integrally formed with an electric wire.

  In order to solve the above problems and achieve the object, the invention described in claim 1 is a wire harness in which a wiring clip to be locked in a mounting hole of a panel is integrally formed with an electric wire, and the wiring clip is A plate-shaped main body part, a fixing part provided on the upper surface of the main body part and covering the outer surface of the electric wire and fixing the electric wire, and the attachment of the panel provided on the lower surface of the main body part An engaging protrusion that engages with an inner peripheral surface of a tube that accommodates the electric wire fixed to the fixing portion, and the engaging portion The protrusions are a pair of engaging protrusions provided to protrude in opposite directions from the outer peripheral surface of the fixed portion, and the plurality of the pair of engaging protrusions are provided on the outer peripheral surface of the fixed portion. The pair of engagement protrusions is the plurality of pairs of engagement protrusions. Protrusion directions are provided in directions intersecting each other, and the plurality of pairs of engagement protrusions are provided such that the protrusion positions of the plurality of pairs of engagement protrusions are displaced in the axial direction of the electric wire. A wire harness characterized by that.

  According to a second aspect of the present invention, the fixing portion is connected to a connecting portion protruding from a central portion of the upper surface of the main body portion, and the upper surface of the main body portion is engaged with the outer peripheral surface of the tube. The second engagement protrusion is provided, and the lower surface of the fixed portion is provided with a third engagement protrusion that engages with an inner peripheral surface of the tube. This is a wire harness.

  According to the first aspect of the present invention, in the wire harness, since one end of the tube containing the electric wire is engaged with the fixing portion, the temporary holding work for tape-fixing the one end of the tube is omitted. . For this reason, the installation work of the tube comes to be performed quickly and easily by a single worker.

  Moreover, since the wire harness omits the temporary holding work for tape fastening at one end of the tube, the cost for tape fastening is reduced, and the cost of the wire harness is suppressed.

  In addition, since the plurality of pairs of engaging protrusions are sequentially engaged with the inner peripheral surface of the tube, the wire harness is attached with a relatively small force when the tube is attached. In addition, since the plurality of pairs of engaging protrusions are engaged with the tube after the tube is attached, the tube is prevented from being inadvertently removed.

  Further, in the wire harness, since the plurality of pairs of engaging protrusions are sequentially engaged with the inner peripheral surface of the tube, the elasticity of the tube with respect to the plurality of pairs of engaging protrusions is constant, and the tube insertability is improved. .

  The wire harness is attached with a relatively small force when the tube is attached because the direction of expanding the diameter of the tube is sequentially intersected by each of the plurality of pairs of engaging protrusions. On the other hand, a large force is required to remove the tube. For this reason, the attachment work of the tube can be easily performed, and inadvertent removal of the tube is sufficiently prevented.

  According to the invention described in claim 2, since the one end side of the tube enters the gap formed between the main body portion and the fixing portion, the wire harness of the tube engaged with the fixing portion is Stability is improved.

  In addition, since the tube is engaged by the main body portion of the wire harness, the tube cannot be removed carelessly.

1 is a perspective view of a wire harness according to a first embodiment of the present invention. It is a side view of the wire harness shown in FIG. It is principal part sectional drawing of the metal mold | die which shape | molds a wire harness. It is a perspective view of the lower mold | type of the metal mold | die shown in FIG. It is a perspective view which shows the state by which the tube was attached to the wire harness shown in FIG. It is a side view of the wire harness concerning the 2nd Embodiment of this invention. It is explanatory drawing for demonstrating the 1st reference technique which the applicant examined. It is explanatory drawing for demonstrating the 2nd reference technique which the applicant examined. It is explanatory drawing for demonstrating the 3rd reference technique which the applicant made a case.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS.

  As shown in FIGS. 1 and 2, the wire harness 1 according to the first embodiment of the present invention includes a wiring clip 3 and an electric wire 4 that can be locked in a mounting hole of the panel. . The wire harness 1 is formed by integrally forming the wiring clip 3 on the electric wire 4.

  The electric wire 4 includes a conductive core wire and an insulating covering portion. The core wire is formed by twisting a plurality of conductive wires. The conducting wire is made of a conductive metal. The covering portion covers the core wire and is made of a synthetic resin such as polyvinyl chloride resin. For this reason, the outer surface of the electric wire 4 is the outer surface of the said coating | coated part. In addition, a core wire may be comprised from one conducting wire.

  The wiring clip 3 includes a main body portion 10 formed in a thin plate shape, a fixing portion 11 provided on the upper surface of the main body portion 10 to fix the electric wire 4, and an attachment of the panel provided on the lower surface of the main body portion 10. And a locking portion 12 that locks into the hole. The wiring clip 3 is made of a synthetic resin such as a polypropylene resin having flexibility.

  The main body portion 10 is formed in a plate shape and supports the fixing portion 11 and the locking portion 12. Abutting portions 28 and 29 are provided on the lower surface of the main body 10 to press the panel when the locking portion 12 is locked in the mounting hole. The contact portions 28 and 29 are provided at both ends of the main body portion 10 in the longitudinal direction and at positions where the contact portions 28 and 29 do not interfere with the locking pieces 31 and 32 of the locking portion 12.

  The fixing portion 11 is integrally formed with the electric wire 4 and fixes the electric wire 4. The fixing portion 11 includes a cylindrical portion 21 formed in a cylindrical shape along the outer shape of the electric wire 4, and a plurality of engagements provided on one end side of the cylindrical portion 21 and on the outer peripheral surface of the cylindrical portion 21. And protrusions 42, 42, 43, 43.

  The engaging protrusions 42 and 42 are provided on the outer peripheral surface of the cylindrical portion 21 and are a pair of engaging protrusions protruding in opposite directions. In the present embodiment, the engaging protrusions 42 are provided so as to protrude in the horizontal direction.

  The engagement protrusions 43 and 43 are provided on the outer peripheral surface of the cylindrical portion 21 and are a pair of engagement protrusions 43 protruding in opposite directions. It protrudes in the vertical direction.

  The engaging protrusions 42 and 42 and the engaging protrusions 43 and 43 are provided so as to be biased in the longitudinal direction of the fixing portion 11. The engaging protrusions 42 and 42 and the engaging protrusions 43 and 43 are provided so as to protrude in a direction substantially orthogonal to each other. The engagement protrusions 42 and 42 are provided closer to the distal end side of the fixing portion 11 than the engagement protrusions 43 and 43.

  Note that the engaging protrusions 42 and 42 and the engaging protrusions 43 and 43 are not limited to the above-described horizontal direction and vertical direction, as long as they are provided so as to protrude in directions substantially orthogonal to each other.

  The engagement protrusions 42, 42 are tapered portions 42 a, 42 a in which the amount of protrusion gradually decreases toward the distal end side of the tubular portion 21, and an engagement portion 42 b that engages with the inner peripheral surface of the tube 5. , 42b.

  The engagement protrusions 43 and 43 are tapered portions 43a and 43a that gradually decrease in protruding amount toward the distal end side of the tubular portion 21, and an engagement portion 43b that engages with the inner peripheral surface of the tube 5, respectively. , 43b.

  The tapered portion 42a of the engaging protrusion 42 is in sliding contact with the inner peripheral surface of the tube 5 press-fitted into the fixed portion 11, and the tube 5 is elastically deformed in the horizontal direction into an elliptical shape up to the engaging portion 42b. Expand the diameter. The engaging portion 42b engages with the inner peripheral surface of the tube 5 whose diameter is expanded to an elliptical shape by the tapered portion 42a. Then, one end of the tube 5 that has passed through the engagement portion 42b is reduced in diameter by an elastic recovery force, and the engagement portion 42b and the tube 5 are engaged.

  A tapered portion 43a of the engagement protrusion 43 is in sliding contact with the inner peripheral surface of the tube 5 press-fitted into the fixing portion 11, and elastically deforms the tube 5 in the vertical direction in an elliptical shape up to the engagement portion 43b. Expand the diameter. The engaging portion 43b engages with the inner peripheral surface of the tube 5 whose diameter is expanded to an elliptical shape by the tapered portion 43a. And the one end part of the said tube 5 which passed the said engaging part 43b shrinks by an elastic recovery force, and the said engaging part 43b and the said tube 5 are engaged.

  For this reason, since the one end side of the tube 5 is sequentially expanded in diameter in the horizontal direction and the vertical direction by the engagement protrusions 42 and 42 and the engagement protrusions 43 and 43, the tube 5 and the engagement protrusions 42, 42, and 43. , 43 is reduced, the press-fitting load when the tube 5 is press-fitted into the fixed portion 11 is reduced, and the insertability of the tube 5 is improved. Further, since one end side of the tube 5 is engaged by the engagement protrusions 42 and 42 and the engagement protrusions 43 and 43, an unloading load when the tube 5 is pulled out from the fixing portion 11 is increased.

  The locking part 12 includes columnar parts 33, 34 erected on the lower surface of the main body part 10, and locking pieces 31, 32 that lock with the mounting holes of the panel. The locking pieces 31 and 32 are provided at the distal ends of the columnar portions 33 and 34 and are formed to extend toward the proximal ends of the columnar portions 33 and 34. The locking pieces 31 and 32 are formed so as to be gradually separated from each other toward the main body 10. The locking pieces 31 and 32 are formed so as to be swingable, and the swinging direction of the locking pieces 31 and 32 is a direction parallel to the longitudinal direction of the electric wire 4. Locking protrusions 35 and 36 for locking to the inner peripheral surface of the mounting hole of the panel and locking surfaces 37 and 38 for locking to the peripheral edge of the mounting hole are provided at the tips of the locking pieces 31 and 32. It has been.

  As shown in FIG. 3, the wire harness 1 configured as described above is formed by integrally molding the wiring clip 3 on the electric wire 4 by injection molding in a mold 60.

  The mold 60 is a horizontal split mold and includes an upper mold 61 and a lower mold 62. Each of the upper mold 61 and the lower mold 62 includes a linear cavity 64 formed along the outer shape of the electric wire 4 and a wiring clip cavity 63 formed along the outer shape of the wiring clip 3. Is provided.

  As shown in FIG. 4, the lower mold 62 is formed with a linear cavity 64 and a wiring clip cavity 63 upward. In the linear cavity 64, outlets 65 and 66 for leading the electric wire 4 to the outside from both ends of the mold 60 are provided in the upper mold 61 and the lower mold 62, respectively. The wiring clip cavity 63 communicates with a runner for guiding the molten resin injected from an injection device (not shown). The molten resin is at a temperature at which the covering portion of the electric wire 4 is not plastically deformed. The mold 60 may be a vertical split mold.

  The mold 60 may be provided with a plurality of wiring clip cavities 63 on the linear cavities 64. In this case, the mold 60 has a plurality of wiring clip cavities 63 at positions where the plurality of wiring clips 3 can be locked in the mounting holes of the panel when the wire harness 1 is attached to the panel. Be placed. That is, the plurality of wiring clips 3 are provided at positions where the relative positions with respect to the electric wires 4 can be locked in the mounting holes of the panel.

  In the present invention, the plurality of wiring clips 3 are provided at positions where the relative positions with respect to the electric wires 4 can be locked in the mounting holes of the panel. In the wire harness 1 obtained by injection-molding molten resin into the wiring clip cavity 63 maintained at the relative position at the time of designing 1, the relative positions of the plurality of wiring clips 3 with respect to the electric wires 4 However, if the error which arises at the time of injection molding is remove | excluded, it means that it is the position defined at the time of design.

  As shown in FIG. 5, the wire harness 1 formed by the above-described mold 60 is inserted into the tube 5, and then one end of the tube 5 is press-fitted into the fixing portion 11. The pair of engaging protrusions 42 and the pair of engaging protrusions 43 are sequentially engaged. Next, one end of the tube 5 comes into contact with the connecting portion 27 of the main body portion 10, and the tube 5 is fixed to the fixing portion 11 to complete the mounting operation.

  Next, the other end of the tube 5 is provided with a connector or the like, or is taped to a commercially available clamp. Note that the wiring clip 3 may be integrally formed on the electric wire 4 by the mold 60 in a state where the electric wire 4 is inserted through the tube 5.

  Next, in the wire harness 1 to which the tube 5 is fixed, when the locking portion 12 of the wiring clip 3 enters the mounting hole of the panel, the free ends of the locking pieces 31 and 32 are close to each other. It is elastically deformed. Next, when the locking pieces 31 and 32 are inserted through the mounting holes, the free ends of the locking pieces 31 and 32 are displaced in directions away from each other by elastic recovery force.

  And the latching protrusions 35 and 36 provided at the respective tips of the latching pieces 31 and 32 are in contact with the inner peripheral surface of the mounting hole and are provided at the tips of the respective latching pieces 31 and 32. The locking surfaces 37 and 38 abut against the peripheral edge of the mounting hole, and the abutting portions 28 and 29 provided on the lower surface of the main body 10 press the panel. For this reason, the wiring clip 3 of the wire harness 1 is securely engaged and fixed in the mounting hole of the panel.

  In the wire harness 1 according to the first embodiment described above, the wiring clip 3 that is locked to the mounting hole of the panel is integrally formed with the electric wire 4. The wiring clip 3 includes a main body portion 10 formed in a plate shape, a fixing portion 11 that is provided on the upper surface of the main body portion 10 and covers the outer surface of the electric wire 4 and fixes the electric wire 4, and the main body A locking portion 12 that is provided on the lower surface of the portion 10 and that locks with the mounting hole of the panel, and the fixing portion 11 includes a tube 5 that houses the electric wire 4 fixed to the fixing portion 11. Engagement protrusions 42 and 43 that engage with the inner peripheral surface are provided, and the engagement protrusions 42 and 43 protrude from the outer peripheral surface of the fixed portion 11 in directions opposite to each other. 43, a plurality of the pair of engaging projections 42, 43 are provided on the outer peripheral surface of the fixed portion 11, and the plurality of pairs of engaging projections 42, 43 are the plurality of pairs of engaging projections 42. , 43 are provided in a direction intersecting each other, and , Wherein the plurality of pairs of engaging projections 42, 43 projecting position of the plurality of pairs of engaging projections 42 and 43 are provided displaced in the axial direction of the wire 4.

  For this reason, in the wire harness 1, one end of the tube 5 accommodating the electric wire 4 is engaged with the fixing portion 11. For this reason, the temporary holding work for tape-fixing one end of the tube 5 is omitted, and the tube 5 can be quickly and easily attached by a single worker.

  In addition, since the wire harness 1 does not require a temporary holding operation in which one end of the tube 5 is taped and temporarily fixed, the cost for tape fixing is reduced and the cost of the wire harness 1 is suppressed.

  In addition, since the plurality of pairs of engaging protrusions 42 and 43 are sequentially engaged with the inner peripheral surface of the tube 5, the wire harness 1 is attached with a relatively small force when the tube 5 is attached. In addition, after the tube 5 is attached, the plurality of pairs of engaging protrusions 42 and 43 are engaged with the tube 5, so that the tube 5 is prevented from being carelessly removed.

  Further, in the wire harness 1, since the plurality of pairs of engaging protrusions 42 and 43 are sequentially engaged with the inner peripheral surface of the tube 5, the elasticity of the tube with respect to the plurality of pairs of engaging protrusions 42 and 43 is constant. The insertability of the tube 5 is improved.

  In addition, the wire harness 1 is attached with a relatively small force when the tube 5 is attached because the direction in which the diameter of the tube 5 is expanded sequentially by each of the plurality of pairs of engaging protrusions 42 and 43. Is called. On the other hand, a large force is required to remove the tube 5. For this reason, the attaching operation of the tube 5 can be easily performed, and inadvertent removal of the tube 5 is sufficiently prevented.

(Second Embodiment)
Next, 2nd Embodiment of the wire harness 1 concerning this invention is described with reference to FIG. In addition, the same code | symbol is attached | subjected to the part same as embodiment mentioned above, and description is abbreviate | omitted.

  The wire harness 1 </ b> A includes an electric wire 4 and a wiring clip 3 integrally formed with the electric wire 4. The wiring clip 3 </ b> A includes a main body part 10, a fixing part 11 </ b> A provided on the upper surface of the main body part 10, and a locking part 12 provided on the lower surface of the main body part 10.

  11 A of fixing parts are the cylindrical part 21 formed in the cylindrical shape along the external shape of the said electric wire 4, a pair of engagement protrusion 43 provided in the outer peripheral surface of the said cylindrical part 21, and a pair of engagement protrusion 42 And. The cylindrical portion 21 includes a connecting portion 27 erected on the upper surface of the main body portion 10 and an opening portion 23 communicating with the outer surface of the electric wire 4. The connecting portion 27 is provided at the central portion of the upper surface of the main body portion 10.

  In a gap 45 formed between the main body portion 10 and the fixing portion 11A, a second engagement protrusion 48 that engages the tube 5 when the tube 5 is press-fitted into the fixing portion 11A, Three engagement protrusions 47 are provided. The second engagement protrusion 48 and the third engagement protrusion 47 are formed in a triangular shape. The second engagement protrusion 48 is provided on the upper surface of the main body 10 and engages with the outer peripheral surface of the tube 5. The third engagement protrusion 47 is provided on the lower surface of the cylindrical portion 21 and engages with the inner peripheral surface of the tube 5.

  For this reason, the tube 5 press-fitted into the fixing portion 11A is engaged with the engaging protrusions 42 and 43 of the fixing portion 11A, and the second engaging protrusion 48 and the third engaging protrusion 47 of the gap 45. For this reason, the removal load when the tube 5 is pulled out from the fixed portion 11A becomes sufficiently large.

  In the wire harness 1 according to the second embodiment described above, the fixing portion is connected to a connecting portion projecting from a central portion of the upper surface of the main body, and an outer periphery of the tube is provided on the upper surface of the main body. A second engagement protrusion that engages with the surface is provided, and a third engagement protrusion that engages with the inner peripheral surface of the tube is provided on the lower surface of the fixed portion.

  For this reason, in the wire harness 1, one end side of the tube 5 enters the gap 45 formed between the main body portion 10 and the fixing portion 11A, and the engagement protrusions 42 and 43 of the fixing portion 11A and the gap 45 It is engaged with the second engagement protrusion 48 and the third engagement protrusion 47. For this reason, the stability of the tube 5 engaged with the fixing portion 11A is improved.

  In the wire harness 1, the tube 5 is engaged with the engagement protrusions 42 and 43 of the fixing portion 11 </ b> A and the second engagement protrusion 48 and the third engagement protrusion 47 of the gap 45. Inadvertent removal is reliably prevented.

(First reference technology)
Next, the technique studied by the applicant in the research leading to the invention of the wire harnesses 1 and 1A according to the present invention described above will be described as a reference technique. In addition, the same code | symbol is attached | subjected to the part same as embodiment mentioned above, and description is abbreviate | omitted.

  As shown in FIG. 7, the wire harness 1 </ b> B includes an electric wire 4 and a wiring clip 3 integrally formed with the electric wire 4. The wiring clip 3 </ b> B includes a main body part 10, a fixing part 11 </ b> B provided on the upper surface of the main body part 10, and a locking part 12 provided on the lower surface of the main body part 10.

  The fixing portion 11 </ b> B is provided on the cylindrical portion 21 in which the electric wire 4 is fixed and formed in a cylindrical shape, on one end side of the cylindrical portion 21 and on the outer peripheral surface of the cylindrical portion 21, and engages with the tube 5. Engagement protrusions 41, 41. The cylindrical portion 21 includes a connecting portion 27 erected at one end in the longitudinal direction of the upper surface of the main body portion 10 and an opening portion 23 communicating with the outer surface of the electric wire 4.

  The engagement protrusions 41 and 41 protrude from the outer peripheral surface of the cylindrical body 21 in opposite directions to form a pair of engagement protrusions. The engagement protrusions 41 and 41 are tapered portions 41a and 41a that gradually decrease in protrusion amount toward the tip of the cylindrical body 21, and engagement portions 41b and 41b that engage with the inner peripheral surface of the tube 5, respectively. 41b. In addition, since the engagement protrusions 41 and 41 should just protrude in the mutually opposite direction, you may protrude in the perpendicular | vertical direction, the horizontal direction, or another direction.

  The tapered portion 41a is in sliding contact with the inner peripheral surface of one end of the tube 5 press-fitted into the fixed portion 11B, and is deformed into an elliptical shape and expands to the engaging portion 41b. For this reason, the press-fitting load when the tube 5 is press-fitted into the fixing portion 11B is reduced, and the mounting work of the tube 5 is performed quickly and easily.

  The engaging portion 41b engages with the inner peripheral surface of the tube 5 whose diameter is expanded in an elliptical shape up to the engaging portion 41b by the tapered portion 41a. And the one end part of the said tube 5 which passed the said engaging part 41b is diameter-reduced by an elastic recovery force, and the engagement with the said engaging part 41b and the said tube 5 is made | formed reliably. For this reason, an extraction load when the tube 5 is pulled out from the fixing portion 11B is increased, and the tube 5 is not easily pulled out from the fixing portion 11B.

  In the wire harness 1B of the first reference technique described above, the engagement protrusions 41 and 41 are provided on the outer peripheral surface of the fixing portion 11B, and are a pair of engagement protrusions protruding in opposite directions.

  For this reason, the wire harness 1B has a small press-fit load when the tube 5 is press-fitted into the fixed portion 11B, and a large load when the tube 5 is pulled out from the fixed portion 11B. Therefore, the tube 5 can be easily attached to the wiring clip 3B. On the other hand, the tube 5 cannot be easily pulled out from the wiring clip 3B.

(Second reference technology)
Next, the second reference technique studied by the applicant will be described with reference to FIG. In addition, the same code | symbol is attached | subjected to the part same as embodiment mentioned above, and description is abbreviate | omitted.

  The wire harness 1 </ b> C includes an electric wire 4 and a wiring clip 3 </ b> C integrally formed with the electric wire 4. The wiring clip 3 </ b> C includes a main body portion 10, a fixing portion 11 </ b> C provided on the upper surface of the main body portion 10, and a locking portion 12 provided on the lower surface of the main body portion 10.

  11 C of fixing parts are provided with the cylindrical part 21 formed in the cylindrical shape along the external shape of the said electric wire 4, and a pair of engagement protrusion 41,41 provided in the outer peripheral surface of the said cylindrical part 21. As shown in FIG. Yes. The fixing portion 11 </ b> C includes a connecting portion 27 erected on the upper surface of the main body portion 10 and an opening portion 23 that communicates with the outer surface of the electric wire 4. The connecting portion 27 is provided at the central portion of the upper surface of the main body portion 10.

  A gap 45 is formed between the upper surface of the main body 10 and the fixed portion 11C. For this reason, it is prevented that the engagement protrusion 41 of the fixing portion 11C comes into contact with the outside, and the engagement protrusion 41 is prevented from being damaged or damaged. Further, since one end portion of the tube 5 press-fitted into the fixing portion 11C is disposed in the gap 45, the stability of the engagement between the tube 5 and the fixing portion 11C is improved. Further, since the fixing portion 11C is provided in the central portion of the main body portion 10, the wiring clip 3C is reduced in size.

  In the wire harness 1 </ b> C of the second reference technique described above, the fixing portion 11 </ b> C is connected to a connecting portion 27 that protrudes from the central portion of the upper surface of the main body portion 10.

  For this reason, the wire harness 1 </ b> C prevents the engagement protrusion 41 from being damaged or damaged as compared with the conventional clip in which the fixing portion 11 protrudes outward.

(Third reference technology)
Next, a third reference technique studied by the applicant will be described with reference to FIG. In addition, the same code | symbol is attached | subjected to the part same as embodiment mentioned above, and description is abbreviate | omitted.

  The wire harness 1 </ b> D includes an electric wire 4 and a wiring clip 3 </ b> D integrally formed with the electric wire 4. The wiring clip 3 </ b> D includes a main body portion 10, a fixing portion 11 </ b> D provided on the upper surface of the main body portion 10, and a locking portion 12 provided on the lower surface of the main body portion 10.

  The fixing portion 11D is supported by the main body portion 10 via connecting portions 25 and 26 formed on the upper surface of the main body portion 10. The fixing portion 11 </ b> D includes a cylindrical portion 21 that is integrally formed with the electric wire 4, and an engagement protrusion 22 that is provided at one end of the cylindrical portion 21 and engages with the tube 5.

  The engagement protrusion 22 is formed in a tapered conical shape. The engagement protrusion 22 includes a tapered portion 22a that gradually tapers toward the distal end portion, and an engagement portion 22b that engages with the inner peripheral surface of the tube 5.

  The tapered portion 22a is in sliding contact with the inner peripheral surface of the tube 5 press-fitted into the engaging portion 22, and the diameter of the engaging portion 22b is gradually increased at one end of the tube 5 along the taper of the tapered portion 22a. The diameter is expanded to. For this reason, the press-fitting load when the tube 5 is press-fitted into the fixing portion 11C is reduced, and the tube 5 is attached quickly and easily.

  The engaging portion 22b engages with the inner peripheral surface of the tube 5 whose diameter is expanded to the diameter of the engaging portion 22b by the tapered portion 22a. And the one end part of the said tube 5 which passed the said engaging part 22b is diameter-reduced by an elastic recovery force, and the engagement with the said engaging part 22b and the said tube 5 is made | formed reliably. For this reason, the removal load when the tube 5 is pulled out from the fixing portion 11C is increased, and the tube 5 is not easily pulled out from the fixing portion 11C.

  Since the wire harness 1D of the third reference technique described above is provided with the engagement protrusion 22 that engages with the inner peripheral surface of the tube 5, it is only necessary to press-fit the tube 5 into the fixing portion 11D of the wiring clip 3D. The tube 5 is attached to the wiring clip 3D. For this reason, the temporary holding work which temporarily fixes the said tube 5 to the said clip 3D for wiring with a tape, a band, etc. becomes unnecessary.

  As described above, the wire harness 1, 1 </ b> A according to the present invention extracts a configuration that exhibits a remarkable effect from the first reference technique to the third reference technique studied by the applicant, and can be implemented. It is a thing.

  In addition, embodiment mentioned above only showed the typical form of this invention, and this invention is not limited to embodiment. That is, various modifications can be made without departing from the scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Wire harness 3 Clip for wiring 4 Electric wire 5 Tube 10 Main part 11 Fixing part 42,43 Engagement protrusion

Claims (2)

In the wire harness in which the clip for wiring locked to the mounting hole of the panel is integrally formed with the electric wire,
The wiring clip is provided on a plate-shaped main body, a fixing portion that is provided on an upper surface of the main body and covers an outer surface of the electric wire and fixes the electric wire, and a lower surface of the main body. A locking portion that locks with the mounting hole of the panel,
The fixing portion is provided with an engaging protrusion that engages with an inner peripheral surface of a tube that accommodates the electric wire fixed to the fixing portion.
The engaging protrusions are a pair of engaging protrusions provided to protrude in opposite directions from the outer peripheral surface of the fixed portion,
A plurality of the pair of engaging protrusions are provided on the outer peripheral surface of the fixing portion,
The plurality of pairs of engagement protrusions are provided in directions in which the protruding directions of the plurality of pairs of engagement protrusions intersect each other; and
The wire harness, wherein the plurality of pairs of engagement protrusions are provided with the protruding positions of the plurality of pairs of engagement protrusions displaced in the axial direction of the electric wire. The fixed portion is connected to a connecting portion protruding from a central portion of the upper surface of the main body,
On the upper surface of the main body portion, a second engagement protrusion that engages with the outer peripheral surface of the tube is provided, and
The wire harness according to claim 1, wherein a third engaging protrusion that engages with an inner peripheral surface of the tube is provided on a lower surface of the fixing portion.

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