JP2006027378A - Mounting structure of wire harness for door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce component cost by decreasing components such as intermediate panels for wiring the wire harness and enhance the easiness in mounting the wire harness to an automobile door. <P>SOLUTION: A wire harness assembly 5 is formed by pinching the wire harness 1 between a waterproof sheet 3 and a soundproof sheet 4 and is installed between a door panel 6 and a door trim 7. The base end 14 of an engaging clip 11 is fixed by pinching between the waterproof sheet 3 and the soundproof sheet 4, and the head of the clip is protruded from the waterproof sheet. An engaging member 23 is provided on the door trim 7, and the waterproof sheet 3 and the soundproof sheet 4 are fitted in between the engaging member and the door trim, and the intermediate shaft part 13 of the clip 11 is engaged with the engaging member. The engaging member 23 is furnished with a cut-in hole part 27 for engagement with the clip 11. The head of the clip 11 is inserted into and engaged with a hole part 32 in the door panel 6. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a door wire harness mounting structure in which a wire harness is disposed between a door panel of an automobile door and a door trim.

  6 to 7 show various forms of a conventional mounting structure for a door wire harness of an automobile (see Patent Document 1).

  In the door wire harness mounting structure of FIG. 6, a door inner panel 42 is assembled to a metal door outer panel 41, and a plurality of holes 43 are provided in the door inner panel 42, along the door inner panel 42. And the wire harness 44 is inserted inward from the hole 43, and the connector 45 of the wire harness 44 is disposed in each hole 43. The front end of the wire harness 44 is the front end of the door inner panel 42. The waterproof grommet 46 is assembled in the groove portion.

  A weather strip 47 is provided along the periphery of the door inner panel 42 and the window frame of the door outer panel 41 across the waterproof grommet 46 in the vertical direction. The connector 48 at the front end of the wire harness 44 is connected to a wire harness on the vehicle body (power supply) side, and each connector 45 at the terminal of the wire harness 44 is connected to an auxiliary machine such as a speaker, a power window motor, a door lock unit, and a courtesy lamp. Is done. A door trim (not shown) is assembled to the door inner panel 42. In general, a waterproof sheet or a soundproof sheet (not shown) is disposed between the door panel 42 and the door trim.

  7 includes a metal door panel 51, an intermediate panel 52 made of synthetic resin, etc., and a door trim 53 made of synthetic resin, and the intermediate panel 52 is provided with a wire harness 54. The front end portion of 54 is fixed to the hole portion of the outward projecting plate portion 56 through the hole portion 55 of the intermediate panel 52 via a waterproof grommet 57, and each connector 58 is provided at the end of the wire harness 54. Is connected to auxiliary equipment such as a switch unit and a speaker on the door trim side.

  A weather strip 59 is provided on the outer periphery of the intermediate panel 52, and the weather strip 59 is in close contact with the vehicle body for waterproofing. The door trim 53 is provided with a hole 61 into which the switch unit 60 is inserted. The door trim 53 is fixed to the intermediate panel 52 by engagement of the plurality of protrusions 62 and the holes 63, and the intermediate panel 52 is fixed to the door panel 51 by engagement of the plurality of protrusions 64 and the holes 65.

  As a structure which fixes a door trim to a door inner panel with a protrusion, the structure described in patent document 2 is mentioned, for example.

In this structure, the base of the locking clip, which is a protrusion, is engaged with the hole of the trim board, the flexible head of the locking clip protrudes outward from the trim board, and the door inner panel It is inserted and locked in the hole.
Japanese Patent Laid-Open No. 10-81180 (pages 4-5, FIG. 1) JP-A-6-328938 (second page, FIG. 2)

  However, the conventional door wire harness mounting structure (FIG. 7) requires a synthetic resin or rubber intermediate panel 52, which increases the structure and increases the cost of parts. In addition, the wire harness 54 is inserted through the hole 55 of the intermediate panel 52, the connector 8 is fixed, and the intermediate panel 52 is fixed to the door panel 51 and the door trim 53. There was a problem that man-hours were required.

  In view of the above points, the present invention aims to reduce the cost of parts by reducing the number of parts such as an intermediate panel in which a wire harness is routed, and to improve the attachment of a wire harness to a door, that is, the productivity of an automobile door. It aims at providing the attachment structure of the intended wire harness for doors.

  In order to achieve the above object, a door wire harness mounting structure according to claim 1 of the present invention comprises a wire harness assembly sandwiched between a waterproof sheet and a soundproof sheet, and the wire harness. The assembly is arranged between the door panel and the door trim.

  With the above configuration, the wire harness sinks into the flexible soundproof sheet and is stably supported without displacement, and a thin waterproof sheet covers the wire harness and swells in the radial direction of the wire harness. The wire harness is pressed against the waterproof sheet by the elastic force of the soundproof sheet. It is preferable that the waterproof sheet and the soundproof sheet are bonded together in an overlapped state. It is not necessary to fix the wire harness to the soundproof sheet or the waterproof sheet with a fixing member. The wire harness assembly is disposed so as to be sandwiched between the door panel and the door trim.

  The door wire harness mounting structure according to claim 2 is the door wire harness mounting structure according to claim 1, wherein the base end portion of the locking clip is fixed between the waterproof sheet and the soundproof sheet. The head of the locking clip protrudes from the waterproof sheet.

  With the above structure, the wire harness is sandwiched between the waterproof sheet and the soundproof sheet, and at the same time, the proximal end portion of the locking clip is sandwiched and fixed. Examples of the base end portion of the locking clip include a collar portion and a protrusion. The base end portion of the locking clip is pressed against the waterproof sheet by the elastic force of the soundproof sheet. The locking clip includes a shaft portion, a protrusion on the proximal end side of the shaft portion, and a claw portion on the distal end side of the shaft portion. The head is composed of the claw portion and a part on the right side of the shaft. The claw is inserted and locked in the hole of the door panel.

  The door wire harness mounting structure according to claim 3 is the door wire harness mounting structure according to claim 2, wherein a locking member is provided on the door trim, and the waterproofing is provided between the locking member and the door trim. The sheet and the soundproof sheet are fitted together, and an intermediate shaft portion of the locking clip is engaged with the locking member.

  With the above configuration, the waterproof sheet and the soundproof sheet of the wire harness assembly are inserted into the gap between the door trim and the locking member in a state where the waterproof sheet is overlapped, and the waterproof sheet is pressed against the locking member by the elasticity of the soundproof sheet. The base end portion of the stop clip is pressed and fixed between the waterproof sheet. The claw portion of the locking clip is positioned so as to protrude from the locking member.

  The door wire harness mounting structure according to claim 4 is the door wire harness mounting structure according to claim 3, wherein the locking member has a notched hole for engagement with the locking clip. Features.

  With the above configuration, the waterproof sheet and the soundproof sheet of the wire harness assembly are slidably inserted between the door trim and the locking member, and at the same time, the shaft portion of the locking clip is slid into the hole of the locking member. Is inserted.

  The door wire harness mounting structure according to claim 5 is the door wire harness mounting structure according to any one of claims 2 to 4, wherein the head of the locking clip is inserted into the hole of the door panel. It is characterized by being stopped.

  With the above configuration, the door trim is assembled to the door panel in a state where the wire harness assembly is assembled to the door trim, and at the same time, the head including the claw portion of the locking clip is inserted and locked into the hole of the door panel.

  According to the invention described in claim 1, since the conventional intermediate panel is eliminated and the waterproof sheet and the soundproof sheet are used instead, the number of parts and the part cost are reduced, and the wire harness is stably supported by the soundproof sheet. In addition, since the work of fixing the wire harness is not required, the workability of attaching the wire harness is improved, and the productivity of the automobile door is improved.

  According to the second aspect of the present invention, the locking clip can be easily and reliably fixed to the wire harness assembly, and the assemblability of the wire harness assembly is improved.

  According to the invention described in claim 3, the wire harness assembly can be easily fixed to the door trim with good workability, and the wire harness assembly and the door trim can be efficiently fixed to the door panel with the locking clip. As a result, the assembly of the automobile door is improved.

  According to the invention described in claim 4, the wire clip assembly can be easily engaged with the lock member of the door trim at the same time that the wire harness assembly is mounted on the door trim, and the wire harness assembly is assembled to the door trim. The property is further improved.

  According to the fifth aspect of the present invention, both the fixing of the wire harness assembly to the door trim and the fixing of the door trim to the door panel can be performed with the locking clip, and the number of parts for locking and the cost can be reduced. Thus, the structure of the automobile door can be simplified and the cost can be reduced.

  FIGS. 1-5 shows one Embodiment of the attachment structure of the wire harness for doors which concerns on this invention.

  As shown in FIG. 1, a door wire harness 1 is disposed between a waterproof sheet 3 and a soundproof sheet 4 of an automobile door 2, and a wire harness set including the waterproof sheet 3, the wire harness 1, and the soundproof sheet 4. The solid 5 is disposed between the door panel 6 and the door trim 7. The waterproof sheet 3 is disposed in contact with the door panel 6, the soundproof sheet 4 is disposed in contact with the door trim 7, and the waterproof sheet 3 and the soundproof sheet 4 are disposed in contact with each other.

  The door panel 6 includes a metal door outer panel 8 and a metal or synthetic resin door inner panel 9, and the waterproof sheet 3 is formed of a synthetic resin material such as vinyl or rubber so as to be thin and bendable (flexible). The soundproof sheet 4 is made of a synthetic resin material such as urethane, rubber, or fiber material, which is thick and flexible and has elasticity. The door panel 6, the waterproof sheet 3, the soundproof sheet 4, and the door trim 7 are all existing ones.

  As shown in FIG. 2, the waterproof sheet 3 is provided with a hole 10 in the middle of a corner or a side, and a locking clip 11 is attached to the hole 10. The locking clip 11 includes a pair of flexible claw portions 12, a shaft portion 13 that supports the claw portion 12, and a collar portion (base end portion) 14 provided at the base end of the shaft portion 13. The nail | claw part 12 has the step part 12a (FIG. 5) for latching in the front end side. The structure of the nail | claw part 12 and the axial part 13 is the same as the existing thing. The flange portion 14 protrudes perpendicularly to the shaft portion 13. The claw portion 12 and the tip side portion of the shaft portion 13 constitute a head.

  The soundproof sheet 4 is not particularly processed such as holes. The flange 14 at the base end of the locking clip 11 can come into contact with the surface of the soundproof sheet 4. The size (width) and shape of the soundproof sheet 4 and the waterproof sheet 3 excluding the plate thickness are substantially the same. The soundproof sheet 4 and the waterproof sheet 3 are formed slightly smaller (narrower) than the door trim 7.

  The wire harness 1 is formed by concentrating a plurality of electric wires into a substantially circular cross section by tape winding or the like to form a trunk portion 15, branching a branch line 16 from the trunk portion 15, and arranging a connector 17 at each terminal. It is an existing form. The size of each connector 17 is different.

  The connector 17 is composed of a connector housing made of synthetic resin (represented by reference numeral 17) and a terminal 18 housed in the connector housing, and the terminal 18 is connected to the electric wire by means such as crimping. The connector 17 of this example has a connector fitting chamber, and has a tab portion of a male terminal 18 in the connector fitting chamber.

  A connector 17 at one terminal of the trunk portion 15 is connected to a connector of a wire harness (not shown) on the vehicle body (power supply) side on the front end side of the door 2. The other connector 17 is connected to a connector of an auxiliary machine (not shown) such as a door lock unit, a speaker, or a power window motor.

  As shown in FIG. 3, the wire harness 1 is routed between the soundproof sheet 4 and the waterproof sheet 3, and the collar portion 14 of the locking clip 11 is disposed. The shaft portion 13 and the claw portion 12 of the locking clip 11 are The wire portion excluding the connector 17 of the wire harness 1 sunk about half in the radial direction through the hole portion 19 of the waterproof sheet 3 and is sunk along the wire portion. As shown in FIG.

  The waterproof sheet 3 and the soundproof sheet 4 are bonded together with an adhesive or a double-sided tape. The soundproof sheet 4 is pushed by the electric wire portion and bends in a substantially arc shape in cross section, and is positioned with a small gap 21 between the arcuate groove 20 and the waterproof sheet 3 on both radial sides of the electric wire portion. The electric wire portion is not limited to the trunk portion 16 and is also supported stably by sinking into the soundproof sheet at the branch line 16.

  As shown in FIG. 4, the connector 17 of the wire harness 1 protrudes from between the soundproof sheet 4 and the waterproof sheet 3 bonded together, and the claw part 12 and the shaft part 13 of the locking clip 11 are on the surface side of the waterproof sheet 3. It is located protruding. In a state where the wire harness assembly 5 including the soundproof sheet 4, the waterproof sheet 3, the wire harness 1, and the locking clip 11 is assembled to the door trim 7, the connector 17 projects from the end portion 17 a of the door trim 5. The connector 17 having the connector fitting chamber may be disposed between the waterproof sheet 3 and the soundproof sheet 4 and can be smoothly fitted without causing the mating connector to interfere with the sheets 3 and 4.

  The door trim 7 made of synthetic resin is integrally provided with a locking member 23 bent in a substantially L shape at a position corresponding to the locking clip 11. The locking member 23 is composed of a support plate 25 raised from the wide substrate portion 24 of the door trim 7 at a substantially right angle, and a locking plate 26 bent from the support plate 25 and projecting parallel to the substrate portion 24. A notch opening 28 and a hole 27 are provided in communication with the locking plate 26 so that the locking clip 11 is slidably engaged. The notch opening 28 is provided in the longitudinal direction from the front end of the locking plate 26, and the hole portion 27 is located substantially at the center of the locking plate 26.

  The inner width of the cutout opening 28 is set to be smaller than the inner diameter of the hole portion 27 and slightly larger than the outer width of the shaft portion 13 of the lock clip 11, and the lock clip 11 is inserted into the hole portion from the cutout opening 28. 11 can be inserted in the protruding orthogonal direction. Instead of locking the claw portion 12 of the locking clip 11 to the locking plate 26, a gap 29 is provided between the locking plate 26 and the locking claw 12 as shown in FIG. (FIG. 1) is engaged, and the claw portion 12 is inserted and locked in the hole portion of the door panel 6.

  In FIG. 4, the waterproof sheet 3 and the soundproof sheet 4 are integrally inserted as shown by an arrow A between the substrate portion 24 of the door trim 7 and the locking plate 26 of the locking member 23, and at the same time, the locking clip 11 is engaged. Engage with the hole 27 of the stop plate 26. The gap 30 between the substrate portion 24 and the locking plate 26 is set to be smaller than the total thickness T (FIG. 5) of the waterproof sheet 3 and the soundproof sheet 4 in the free state. As shown in FIG. The wire harness assembly 5 is inserted into the gap 30 while being compressed.

  The soundproof sheet 4 presses the locking plate 26 through the waterproof sheet 3 with elastic force, whereby the waterproof sheet 3 and the soundproof sheet 4 are firmly fixed to the door trim 7. The total thickness T of the soundproof sheet 4 and the waterproof sheet 3 in the free state is set to be slightly thicker than the distance between the surface of the substrate portion 24 of the door trim 7 and the outer surface of the locking plate 26.

  In FIG. 5, the outer surface of the waterproof sheet 3 is pressed against the inner surface of the locking plate 26 by the elastic force of the soundproof sheet 4, and at the same time, the flange portion 14 of the locking clip 11 is similarly placed between the soundproof sheet 4 and the waterproof sheet 3. It is pressed and fixed by the elastic force of 4. The uncompressed portion 4 a of the soundproof sheet 4 continues to the compressed portion 4 b through a step 31.

  There is a gap 29 between the locking plate 26 and the claw portion 12 of the locking clip 11. The door inner panel 9 of the door panel 6 (FIG. 1) enters the gap 29 and the hole of the door inner panel 9 is inserted. The claw portion 12 of the locking clip 11 is locked to the portion 32 (FIG. 1).

  That is, in order to assemble the door trim assembly 33 formed by mounting the wire harness assembly 5 of FIG. 5 on the door trim 7 to the door panel 6, the head of the locking clip 11 is inserted into the hole 32 of the door inner panel 9. Thus, the claw portion 12 enters the hole portion 32 with a reduced diameter, and expands (restores) as soon as the entry is completed, and the step portion 12a of the claw portion 12 comes into contact with the back surface of the door inner panel 9, and the tip of the claw portion The inner projecting piece 12 b (FIG. 5) contacts the inner peripheral surface of the hole 32, and the locking clip 11 is locked to the door inner panel 9. In this way, the locking clip 11 fixes the wire harness assembly 5 to the door trim 7 and fixes the door trim 7 to the door panel 6 integrally with the wire harness assembly 5.

  As shown in FIG. 2, the locking clip 11 is mounted in each hole 10 of the waterproof sheet 3, and each locking clip 11 is inserted and locked in each hole 32 of the door panel 6 in FIG. Corresponding to the hole 10 of the waterproof sheet 3 in FIG. 2, locking members 23 are also provided at the front end, upper and lower ends and rear end of the door trim 7 in FIG.

  The above-described configuration is also effective as a method for attaching the door wire harness. In the above embodiment, the locking member 23 made of synthetic resin is formed integrally with the door trim 7, but a separate metal locking member can be attached to the door trim 7 later.

  The locking member 23 is composed of, for example, a support plate (edge) extended long along the end of the door trim 7 and the narrow locking plate 26 or the wide locking plate protruding from the support plate. May be. A hole 27 and a notch opening 28 are coupled to the wide locking plate at important points.

  Moreover, it is also possible to make it the slit hole of the same width which integrated the hole 27 and the notch opening 28 of the latching member 23. FIG. It is also possible to eliminate the notch opening 28 and make only the hole 27, and insert the head of the locking clip 11 into the hole 27 while strongly compressing the soundproof sheet 7. However, in this case, the assembling workability is slightly lowered as compared with the case where the locking clip 1 is engaged in a sliding manner.

  Further, the wire harness assembly 5 can be directly locked to the door panel 6 by the locking clip 11 without using the locking member 23. However, in this case, the wire harness assembly 5 cannot be assembled to the door trim 7 in advance, and the assembly of the wire harness assembly 5 and the door trim 7 becomes separate, and the assembly efficiency of the automobile door 2 is lowered.

  The shape of the locking clip 11 can be changed as appropriate. For example, a bar-shaped protrusion is provided instead of the base flange 14, or three or more claw portions are provided instead of the pair of claw portions 12. It is also possible to provide it. However, in the case of the pair of claw portions 12, the arrangement direction of the pair of claw portions 12 is made to coincide with the protruding direction of the locking plate 26 of the locking member 23 or the forming direction of the notch opening 28, and the claw portion 12 is fixed to the locking plate. The engaging clip 11 can be smoothly slid and engaged with the engaging member 23 without interfering with the engaging member 26.

  Further, without using the retaining clip 11, the wire harness assembly 5 composed of the waterproof sheet 3, the soundproof sheet 4 and the wire harness 1 can be secured by means such as screwing or a later attached retaining clip (the waterproof sheet 3 and the soundproof sheet). It is also possible to fix to the door panel 6 or the door trim 7 with a locking clip having a head portion penetrating the hole portion 4 and a flange portion 14 in contact with the waterproof sheet or the soundproof sheet. However, in this case, since the bolts and the locking clips 11 are added when the door is assembled, the assembling work is troublesome.

It is a disassembled perspective view which shows one Embodiment of the attachment structure of the wire harness for doors which concerns on this invention. It is a disassembled perspective view which similarly shows one form of the wire harness assembly in the attachment structure of the wire harness for doors. It is sectional drawing which similarly shows a wire harness assembly. It is a disassembled perspective view which shows the state which assembles a wire harness assembly to a door trim. It is sectional drawing which shows the state which assembled | attached the wire harness assembly to the door trim. It is a perspective view which shows one form of the attachment structure of the conventional wire harness for doors. It is a disassembled perspective view which shows the other form of the attachment structure of the conventional wire harness for doors.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Wire harness 3 Waterproof sheet 4 Soundproof sheet 5 Wire harness assembly 6 Door panel 7 Door trim 11 Locking clip 13 Shaft part 14 Saddle part (base end part)
23 Locking member 27 Hole 28 Notch opening 32 Hole

Claims (5)

  An attachment structure of a wire harness for a door, wherein a wire harness assembly is configured by sandwiching a wire harness between a waterproof sheet and a soundproof sheet, and the wire harness assembly is disposed between a door panel and a door trim.   2. A door according to claim 1, wherein a base end portion of the locking clip is fixed by being sandwiched between the waterproof sheet and the soundproof sheet, and a head portion of the locking clip protrudes from the waterproof sheet. Wire harness mounting structure.   A locking member is provided on the door trim, and the waterproof sheet and the soundproof sheet are fitted between the locking member and the door trim, and an intermediate shaft portion of the locking clip is engaged with the locking member. The door wire harness mounting structure according to claim 2, wherein:   4. The door wire harness mounting structure according to claim 3, wherein the locking member has a notched hole for engagement with the locking clip.   The door wire harness mounting structure according to any one of claims 2 to 4, wherein a head portion of the locking clip is inserted and locked into a hole of the door panel.

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