JP5888813B2 - Wire harness fixing structure - Google Patents

Description

  The present invention relates to a wire harness fixing structure for fixing a wire harness to a panel using a wire harness clip.

  FIG. 15 is a cross-sectional view of a wire harness fixing structure using a conventional wire harness clip. In FIG. 15, reference numeral W is a wire harness formed by bundling a plurality of electric wires, reference numeral 300 is a wire harness clip, and reference numeral 306 is a vehicle body panel.

  The wire harness clip 300 includes a circular dish-shaped first dish-shaped part 301, a wire harness fixing piece 302 extending from the first dish-shaped part 301 and extending along the wire harness W, and the first dish-shaped part 301. A locking portion 303 provided in the center of the back surface and press-fitted into the hole 307 of the vehicle body panel 306, and a circular dish-shaped second dish-shaped portion formed around the locking portion 303 on the back surface of the first dish-shaped portion 301 304. The second dish-shaped part 304 is formed of a softer resin than the first dish-shaped part 301 and is integrally formed with the first dish-shaped part 301, the wire harness fixing piece 302, and the locking part 303. .

  The outer peripheral portion of the first dish-shaped portion 301 is bent so as to rise obliquely outward toward the back surface side to form a first stabilizer 311.

  The second dish-shaped portion 304 is formed with a smaller diameter than the first dish-shaped portion 301, and the bottom thereof is integrated with the bottom of the first dish-shaped portion 301. In addition, the outer peripheral portion of the second dish-shaped portion 304 is bent so as to rise obliquely outward toward the back side, similarly to the outer peripheral portion of the first dish-shaped portion 301, thereby forming a second stabilizer 341. . The second stabilizer 341 is positioned inside the first stabilizer 311.

  The locking portion 303 has a support column 331 protruding from the center of the back surface of the first dish-shaped portion 301 and a pair of locking pieces 332 extending from the tip of the support column 331 to the first dish-shaped portion 301 side. Yes. A stepped locking shoulder 321 is formed at the tip of each locking piece 332.

  Next, a method for fixing the wire harness W to the vehicle body panel 306 using the wire harness clip 300 will be described. First, the wire harness fixing piece 302 is placed along the wire harness W, and the wire harness fixing piece 302 and the wire harness W are fixed with a tape or the like. Then, the locking portion 303 is press-fitted into the hole 307 of the vehicle body panel 306, and the locking shoulder portion 321 is engaged with the edge of the hole 307. As a result, the first stabilizer 311 and the second stabilizer 341 are in close contact with the outer peripheral portion of the hole 307. As a result, the pair of locking pieces 332 and the first stabilizer 311 elastically sandwich the vehicle body panel 306, the wire harness clip 300 is attached to the vehicle body panel 306, and the wire harness W is fixed to the vehicle body panel 306. .

  Further, in the wire harness fixing structure using the wire harness clip 300, the second stabilizer 341 is brought into close contact with the outer peripheral portion of the hole 307, so that the sealing performance with respect to the hole 307 is maintained well (see Patent Document 1). reference.).

Japanese Patent Laid-Open No. 10-14062

  However, the wire harness clip 300 described above has the following problems. That is, since the second dish-shaped portion 304 is formed of a soft resin different from the first dish-shaped portion 301 in order to enhance the sealing performance with respect to the hole 307, the wire harness clip 300 is There is a problem that special equipment is required for manufacturing, which increases the cost.

  Accordingly, the present invention focuses on the above-described problems, and an object thereof is to provide a wire harness fixing structure excellent in sealing performance against a hole in a panel while using a simple and inexpensive wire harness clip.

  In order to achieve the above object, the invention described in claim 1 is a wire harness fixing structure for fixing a wire harness to a panel using a wire harness clip, wherein the wire harness clip is formed in a plate shape. And a locking portion that is provided in the central portion of the plate portion and is press-fitted and locked into the hole of the panel, and the entire plate portion and the wire harness are covered with an elastic sheet. In the state before being fixed and the locking portion is press-fitted and locked into the hole of the panel, the surface on the panel side of both end portions of the plate portion is more than the surface on the panel side of the central portion. The plate is elastically deformed and the elastic sheet between the plate and the panel is compressed when the locking portion is press-fitted and locked into the hole of the panel. Outside the hole A wire harness fixing structure, characterized in that the close contact with the part.

  The invention described in claim 2 is characterized in that, in the invention described in claim 1, the surface on the panel side of both end portions of the plate portion protrudes in a protruding shape toward the panel side. It is.

  The invention described in claim 3 is the invention described in claim 1, characterized in that both end portions of the plate portion are curved toward the panel side.

  According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, a through hole through which the locking portion is passed is formed in the elastic sheet. It is characterized by this.

  According to the invention described in claim 1, the wire harness clip is provided in a plate-like plate portion and a central portion of the plate portion and is press-fitted into the hole of the panel. In the state before the whole of the plate part and the wire harness are covered with an elastic sheet and fixed by being pressed into the hole of the panel. The surface on the panel side of both ends of the part is located on the panel side with respect to the surface on the panel side of the central part, and the locking part is press-fitted and locked into the hole of the panel. While the plate portion is elastically deformed and the elastic sheet between the plate portion and the panel is compressed and closely adheres to the outer peripheral portion of the hole, a simple and inexpensive wire harness clip is used. Wire-her with excellent sealing performance against holes It is possible to provide a scan fixing structure.

  According to the invention described in claim 2, since the panel-side surfaces of both end portions of the plate portion protrude in a protruding shape on the panel side, while using a simple and inexpensive wire harness clip, It is possible to provide a wire harness fixing structure excellent in sealing performance with respect to a hole of a panel.

  According to the invention described in claim 3, since both end portions of the plate portion are curved toward the panel side, the sealing performance against the hole of the panel is excellent while using a simple and inexpensive wire harness clip. A wire harness fixing structure can be provided.

  According to the invention described in claim 4, since the through hole through which the locking portion is passed is formed in the elastic sheet, the work of covering the plate portion and the wire harness with the elastic sheet is easily performed. Thus, it is possible to provide a wire harness fixing structure that does not vary in quality.

It is a perspective view which shows the wire harness clip of the wire harness fixing structure concerning the 1st Embodiment of this invention. It is sectional drawing along the BB line in FIG. It is sectional drawing along CC line in FIG. It is sectional drawing which shows the state by which the wire harness clip and wire harness which were shown by FIG. 2 were covered with the self-adhesive sheet, and were fixed. It is sectional drawing along the DD line in FIG. It is sectional drawing which shows the state by which the latching | locking part of the wire harness clip shown by FIG. 4 was press-fitted and latched in the hole of the panel. It is sectional drawing along the EE line in FIG. It is a perspective view which shows the wire harness clip of the wire harness fixing structure concerning the 2nd Embodiment of this invention. It is sectional drawing along the GG line in FIG. It is sectional drawing along the HH line in FIG. FIG. 10 is a cross-sectional view illustrating a state in which the wire harness clip and the wire harness illustrated in FIG. 9 are covered and fixed with a self-adhesive sheet. It is sectional drawing along the II line | wire of FIG. It is sectional drawing which shows the state by which the latching | locking part of the wire harness clip shown by FIG. 11 was press-fitted and latched in the hole of the panel. It is sectional drawing along the JJ line in FIG. It is sectional drawing of the wire harness fixing structure using the conventional wire harness clip.

(First embodiment)
A “wire harness fixing structure” according to a first embodiment of the present invention will be described with reference to FIGS.

  The wire harness fixing structure 1A of the present invention shown in FIGS. 6 and 7 is a structure for fixing the wire harness 2 to the panel 3 using the wire harness clip 7. The wire harness 2 is a wire harness routed in an automobile, and is configured by bundling a plurality of electric wires 2a. Moreover, in this invention, the wire harness may be comprised with one electric wire. The panel 3 is a body panel of the automobile. 6 and 7, the upper side of the panel 3 is the outside of the vehicle, and the lower side of the panel 3 is the inside of the vehicle.

  The said wire harness clip 7 is comprised with the synthetic resin, and as shown in FIGS. 1-5, it is provided in the board part 6 formed in plate shape, and the center part 6a of the board part 6, and the hole of the panel 3 is provided. 3a (see FIGS. 6 and 7) is integrally provided with a locking portion 5 that is press-fitted and locked.

  As for the said board part 6, the surface by the side of the panel 3 of the longitudinal direction both ends 6b protrudes in the shape of a protrusion in the panel 3 side. The entire plate portion 6 is fixed to the wire harness 2 by being covered with a self-adhesive sheet 4 (corresponding to an “elastic sheet” in the claims) together with the wire harness 2. Further, the plate portion 6 is fixed to the wire harness 2 in a state where the surface opposite to the panel 3 is along the wire harness 2.

  Moreover, what fixed the wire harness clip 7 and the wire harness 2 with the self-adhesive sheet 4 is called "wire harness with a clip" in this invention, and the code | symbol 10A is attached | subjected.

  The locking portion 5 has a support column 50 erected from the surface of the central portion 6a of the plate portion 6 on the panel 3 side, and a pair of locking pieces 52 extending from the tip of the support column 50 to the plate portion 6 side. doing. A drain hole 51 is formed in the support column 50. The pair of locking pieces 52 extend in an oblique direction with respect to the upright direction of the support column 50 so as to gradually widen the mutual interval from the front end side of the support column 50 toward the plate portion 6 side. A stepped locking shoulder 53 is formed at the tip of each locking piece 52.

  Such a locking portion 5 is press-fitted into the hole 3a of the panel 3 from the front end side of the support column 50, and each locking shoulder portion 53 of the pair of locking pieces 52 is engaged with the edge of the hole 3a. Locked to 3a. At this time, the pair of locking pieces 52 are inserted into the holes 3a of the panel 3 while being elastically deformed in a direction approaching each other, and then restored to a state before the elastic deformation to some extent, so that the respective locking shoulder portions 53 of the holes 3a. Engage with the edge.

  The self-adhesive sheet 4 is a sheet whose one surface is an adhesive surface. The self-adhesive sheet 4 has self-adhesiveness that is adhered to each other by overlapping the adhesive surfaces. Further, the adhesive surface is not bonded to other members such as the wire harness clip 7 and the wire harness 2. Further, the self-adhesive sheet 4 is formed with a through hole 4a through which the locking portion 5 is passed. The through hole 4 a is formed in an elliptical shape and has a smaller diameter than the hole 3 a of the panel 3.

  In addition, the self-adhesive sheet 4 has elasticity that shrinks in the thickness direction when pressed, and recovers thickness when the pressure is released, and is a surface opposite to the pressure-sensitive adhesive surface in a compressed state. Uses water-proof ones. Moreover, in this embodiment, the material is a polypropylene foam material and the self-adhesive sheet 4 having a thickness of about 2 mm is employed.

  Further, in the present invention, the self-adhesive sheet made of a material other than the polypropylene foam material, for example, rubber, elastomer, or other synthetic resin, as long as it has the above-described elasticity and surface waterproofness at the time of compression. Can be adopted. Further, in the present invention, various elastic sheets such as an elastic sheet coated with an adhesive are used as long as the above-described elasticity and surface waterproofness at the time of compression are provided. Can do.

  When fixing the wire harness clip 7 and the wire harness 2 with such a self-adhesive sheet 4, the wire harness clip 7 is first assembled to the self-adhesive sheet 4 through the engaging portion 5 in the through hole 4a. The wire harness 2 is covered with the adhesive sheet 4. In the present embodiment, as shown in FIGS. 5 and 7, the self-adhesive sheet 4 is folded in two, the vicinity of the folded portion 4 b of the self-adhesive sheet 4 is overlapped, and both end portions 4 c of the self-adhesive sheet 4 are overlapped. By combining, the whole plate part 6 and the wire harness 2 are covered and both are fixed.

  As described above, in the wire harness 10A with a clip that is assembled by covering the entire plate portion 6 and the wire harness 2 with the self-adhesive sheet 4, the locking portion 5 of the wire harness clip 7 is press-fitted into the hole 3a of the panel 3. By being locked, the pair of locking pieces 52 and the plate portion 6 are fixed to the panel 3 by sandwiching the panel 3 therebetween. Further, as shown in FIG. 4, in the state before the locking portion 5 is press-fitted and locked into the hole 3a of the panel 3, the surface on the panel 3 side of both end portions 6b of the plate portion 6 is the panel of the central portion 6a. The panel portion 6 is located on the panel 3 side of the surface on the third side, and the locking portion 5 is press-fitted and locked into the hole 3a of the panel 3, whereby the plate portion 6 is elastically deformed, The self-adhesive sheet 4 in between is compressed and closely adheres to the outer periphery of the hole 3a.

  More specifically, as shown in FIG. 6, when the locking portion 5 is press-fitted and locked into the hole 3 a of the panel 3, the plate portion 6 with the locking shoulder portions 53 of the pair of locking pieces 52 as fulcrums. When the both ends 6b of the plate 6 are pushed by the panel 3 (in this case, the force applied to the both ends 6b is represented by the arrow F1), the central portion 6a of the plate 6 is pushed up in a direction approaching the panel 3 (at this time) The force generated in the central portion 6a is represented by an arrow F2.) As a result, the self-adhesive sheet 4 located on the outer peripheral portion of the panel 3 is strongly pressed against the panel 3, and the sealing performance with respect to the hole 3 a of the panel 3 is kept good. Therefore, it is possible to prevent water and dust from entering the vehicle from outside the vehicle.

  As described above, according to the present invention, it is possible to provide the wire harness fixing structure 1 </ b> A excellent in sealing performance with respect to the hole 3 a of the panel 3 while using the simple and inexpensive wire harness clip 7. Further, according to the present invention, the self-adhesive sheet 4 is formed with the through holes 4a through which the locking portions 5 are passed, so that the work of covering the plate portion 6 and the wire harness 2 with the self-adhesive sheet 4 is easy. It is possible to provide the wire harness fixing structure 1 </ b> A that can be performed without any variation in quality.

(Second Embodiment)
A wire harness fixing structure according to a second embodiment of the present invention will be described with reference to FIGS. 8 to 14, the same components as those of the first embodiment described above are denoted by the same reference numerals and description thereof is omitted.

  The wire harness fixing structure 1B of the present invention shown in FIGS. 13 and 14 is a structure for fixing the wire harness 2 to the panel 3 using the wire harness clip 9. The wire harness 2 is a wire harness routed in an automobile, and is configured by bundling a plurality of electric wires 2a. Moreover, in this invention, the wire harness may be comprised with one electric wire. The panel 3 is a body panel of the automobile. 13 and 14, the upper side of the panel 3 is the outside of the vehicle, and the lower side of the panel 3 is the inside of the vehicle.

  The wire harness clip 9 is made of a synthetic resin, and is provided in a plate portion 8 formed in a plate shape and a central portion 8a of the plate portion 8 as shown in FIGS. 3a (see FIGS. 13 and 14) is integrally provided with a locking portion 5 that is press-fitted and locked.

  As for the said board part 8, the longitudinal direction both ends 8b are curving to the panel 3 side. The entire plate portion 8 is fixed to the wire harness 2 by being covered with a self-adhesive sheet 4 (corresponding to an “elastic sheet” in the claims) together with the wire harness 2. Further, the plate portion 8 is fixed to the wire harness 2 in a state where the surface opposite to the panel 3 is along the wire harness 2.

  Moreover, what fixed the wire harness clip 9 and the wire harness 2 with the self-adhesive sheet 4 is called a "wire harness with a clip" in this invention, and the code | symbol 10B is attached | subjected.

  Also in the present embodiment, when the wire harness clip 9 and the wire harness 2 are fixed with the self-adhesive sheet 4, the wire harness clip 9 is first assembled to the self-adhesive sheet 4 through the engaging portion 5 in the through hole 4a. The wire harness 2 is covered with the self-adhesive sheet 4. Also in the present embodiment, as in the first embodiment, the self-adhesive sheet 4 is folded in half so that the vicinity of the folded portion 4b of the self-adhesive sheet 4 is overlapped, and both end portions 4c of the self-adhesive sheet 4 are overlapped. By combining, the whole plate part 8 and the wire harness 2 are covered and both are fixed.

  As described above, in the wire harness 10B with a clip assembled by covering the entire plate portion 8 and the wire harness 2 with the self-adhesive sheet 4, the locking portion 5 of the wire harness clip 9 is press-fitted into the hole 3a of the panel 3. By being locked, the pair of locking pieces 52 and the plate portion 8 are fixed to the panel 3 by sandwiching the panel 3 therebetween. In addition, as shown in FIG. 11, in the state before the locking portion 5 is press-fitted and locked into the hole 3 a of the panel 3, the surface of the both ends 8 b of the plate portion 8 on the panel 3 side is the panel of the central portion 8 a. The panel portion 8 is positioned on the panel 3 side with respect to the surface on the third side, and the locking portion 5 is press-fitted and locked into the hole 3a of the panel 3, whereby the plate portion 8 is elastically deformed, and The self-adhesive sheet 4 in between is compressed and closely adheres to the outer periphery of the hole 3a.

  More specifically, as shown in FIG. 13, when the locking portion 5 is press-fitted and locked into the hole 3 a of the panel 3, the plate portion 8 with the locking shoulder portions 53 of the pair of locking pieces 52 as fulcrums. When the both end portions 8b of the plate portion 8 are pushed by the panel 3 (in this case, the force applied to the both end portions 8b is represented by an arrow F1), the central portion 8a of the plate portion 8 is pushed up in the direction approaching the panel 3 (at this time The force generated in the central portion 8a is represented by an arrow F2.) As a result, the self-adhesive sheet 4 located on the outer peripheral portion of the panel 3 is strongly pressed against the panel 3, and the sealing performance with respect to the hole 3 a of the panel 3 is kept good. Therefore, it is possible to prevent water and dust from entering the vehicle from outside the vehicle.

  As described above, according to the present invention, it is possible to provide the wire harness fixing structure 1 </ b> B excellent in sealing performance with respect to the hole 3 a of the panel 3 while using the simple and inexpensive wire harness clip 9.

  In the first and second embodiments described above, the self-adhesive sheet 4 is folded in two to cover the plate portions 6 and 8 and the wire harness 2, but in the wire harness fixing structure of the present invention, the self Two or more pressure-sensitive adhesive sheets 4 may be used, and the self-adhesive sheets 4 may be bonded together to cover the plate portions 6 and 8 and the wire harness 2. Also in this case, the same effect as that obtained by covering the self-adhesive sheet 4 in half is obtained.

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

1A, 1B Wire harness fixing structure 2 Wire harness 2a Electric wire 3 Panel 3a Hole 4 Self-adhesive sheet (elastic sheet)
5 Locking part 6, 8 Plate part 6a, 8a Center part 6b, 8b Both end parts 7, 9 Wire harness clip

Claims (4)

In the wire harness fixing structure that fixes the wire harness to the panel using the wire harness clip,
The wire harness clip has a plate portion formed in a plate shape, and a locking portion that is provided at the center portion of the plate portion and is press-fitted into the hole of the panel,
The entire plate portion and the wire harness are fixed by being covered with an elastic sheet,
In a state before the locking portion is press-fitted and locked into the hole of the panel, the panel-side surfaces of both end portions of the plate portion are positioned closer to the panel side than the panel-side surface of the central portion. And
When the locking portion is press-fitted and locked into the hole of the panel, the plate portion is elastically deformed, and the elastic sheet between the plate portion and the panel is compressed to be formed on the outer peripheral portion of the hole. Wire harness fixing structure characterized by being in close contact. 2. The wire harness fixing structure according to claim 1, wherein the panel-side surfaces of both end portions of the plate portion protrude in a protruding shape toward the panel side. The wire harness fixing structure according to claim 1, wherein both end portions of the plate portion are curved toward the panel side. The wire harness fixing structure according to any one of claims 1 to 3, wherein a through hole through which the locking portion is passed is formed in the elastic sheet.

Images