JP2006117052A - Wire harness routing structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To elastically route a wire harness laid between a vehicle body of an automobile and a door, and improve the installation workability. <P>SOLUTION: A grommet made of an elastic material is externally fitted to the tip end part of the wire harness wired in the door and led out to the body side, and a linear rigid tube having a required length is externally fitted to the wire harness led out from the other end of the grommet. The tip end of the rigid tube is fixed to the grommet, the other end is fixed to the wire harness and the rigid tube is slidably stored in a recessed guide part provided on a module panel mounted to the door. An extra length part possible to follow the opening/closing operation of the door is provided on the wire harness passing through the rigid tube, the extra length part is stored in the space for absorbing the extra length provided on the recessed guide part, and the wire harness is locked on the door side at the outlet position of the space for absorbing the extra length. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a wiring structure for a wire harness that is bridged between a vehicle body and a door of an automobile.

  Doors such as side doors and back doors of automobiles are attached to the body (body) and hinges so that they can be opened and closed. Is done.

Conventionally, a door harness routed to a side door and pulled out to the vehicle body side is routed in a space constituted by a door outer panel and a door inner panel, and the inner panel of the door 1 as shown in FIG. A wire harness (door harness) W / H is bridged to the body 3 side through a through hole 1b drilled in the end surface of the vehicle body 1a.
It is difficult to penetrate the wire harness through the through-hole 1b, and the connector of the terminal of the door harness is connected to many electrical components installed between the outer panel and the inner panel in the assembly line of the automobile. The work to be performed also requires the worker to continue working in an unreasonable posture for a long time, resulting in poor work efficiency and a burden on the worker.

As shown in FIG. 9, a through-hole 1 b that allows the wire harness W / H to pass therethrough is provided on the outdoor side from the position of the weather strip 2, and the wire harness is routed above the hinge H between the vehicle body and the door. Therefore, when the door is opened and closed, only the wire harness is bent and twisted, and the wire harness does not expand and contract.
However, as described above, since the work of penetrating the wire harness W / H through the through hole 1b is a very difficult work, many proposals have been made to route the wire harness to the body side without penetration.

  When wiring the wire harness to the body side, if it is routed from the interior side of the inner panel to the body side, the wiring work can be facilitated because it does not pass through the through hole. Since the position is displaced to the indoor side from the hinge coupling position of the body and the door, it is necessary to expand and contract the wire harness when the door is opened and closed.

In order to solve this problem, the present applicant has previously provided Patent Document 1 (Japanese Patent Laid-Open No. 10-934). In this wire harness routing structure, as shown in FIG. 10, a substantially triangular space 1c is provided on the interior side surface of the inner panel 1a of the door 1, while the wire harness W / H has an extra length that can follow the opening and closing of the door. A portion is provided, and the extra length portion is accommodated in the space 1c and pulled out from the outlet of the space 1c to the body side.
With the above configuration, when the door is opened, the wire harness is pulled out of the space 1c. When the door is closed, the extra length of the wire harness is accommodated in the space 1c, and the wire harness is interlocked with the opening / closing operation of the door. Can be followed.

  However, in the case of the above-described configuration, since the wire harness only has the electric wire group converged and wound with tape, the rigidity is weak, and thus there is a possibility that the wire harness cannot be reliably pulled into the space 1c when the door is closed. At that time, the wire harness hangs down due to gravity between the body side and the door side, and in some cases, the wire harness may be caught between the door and the body.

  In another patent document 2 (Japanese Patent Laid-Open No. 10-16672), as shown in FIG. 11, the wire harness is protected by a protector 5, and one end of the wire harness is slidable on a slide guide 8 provided on the inner panel side of the door. It is mated. The door side of the protector 5 is attached to the body 3 by a swingable connector 9.

Although the above-mentioned problem of Patent Document 1 is partially solved in Patent Document 2, another problem arises. That is, the protector 5 and the slide guide 8 need not only slide in the expansion / contraction direction with each other, but also need to have enough play to absorb the movement in the rotation direction as the door rotates. The problem arises that resonance and abnormal noise occur. On the other hand, if the play is stuffed, it becomes difficult to slide, causing a problem of catching.
In addition, the wire harness is bent or stretched at an acute angle inside the door, causing problems with durability due to repeated stress concentration on a part, and the wire harness is not restrained inside the door. Since the swinging is repeated, there is a problem that the inner panel rubs and wears, or the body vibration resonates and generates abnormal noise.
Japanese Patent Laid-Open No. 10-934 Japanese Patent Laid-Open No. 10-16672

  The present invention has been made in view of the above problems. In the case where a wire harness routed from the door to the vehicle body is routed without passing through, the wire harness can reliably follow the opening and closing operation of the door, and the door harness The task is to improve the routing workability.

In order to solve the above problems, the present invention is a wiring structure of a wire harness that is routed to a door that is hinged to a body of an automobile and spans the body side,
A module panel fixed to the panel of the door is provided, the wire harness is routed to the module panel, and electrical components connected to the wire harness and necessary equipment are attached, and
The wire harness is provided with a surplus length part that follows the door opening / closing operation, and a surplus length absorbing space for curving and accommodating the surplus length part, and the wire harness can be slid continuously to the body side end face opening. A wiring harness wiring structure is provided, wherein a guide recess provided with a sliding space to be inserted into the module panel is provided in the module panel.

As described above, in the present invention, the wire harness (door harness) that is routed to the door and spanned to the body side is routed, and the electrical components that are connected to the door harness are assembled in advance. By installing a module panel that is installed on the door panel, the door harness and required electrical components can be assembled together on the door, greatly reducing the work process in the automobile assembly line. Yes. Therefore, work efficiency can be improved and the burden on the operator can be reduced.
And since the extra length accommodation space which can accommodate the extra length part provided in a wire harness is previously provided in the said module panel, it is not necessary to provide the components provided with this extra length space separately.

  When the module panel is provided with a space for absorbing excess length as described above, the excess length of the wire harness drawn into the space for absorbing excess length is pulled out through the space for sliding when the door is opened. As a result, the wire harness extends, while the extra length portion is drawn into the extra length absorption space during the closing operation, so that the wire harness can be expanded and contracted to follow the opening / closing operation of the door.

  The guide recess includes a linear slide space that is continuous with the body-side end surface opening, a curved, substantially triangular-shaped surplus length absorption space that is continuous with the other end of the slide space, and the surplus space. A shape with a wire harness outlet at one end of the long absorption space. The wire harness is clamped to the wire harness outlet and clamped, and a hard tube is fixed to the wire harness that passes through the slide space. The rigid tube is slidably passed through the body side end face opening, and the tip of the rigid tube is fixed to a grommet fitted on the wire harness, and the grommet is inserted and locked into the locking hole of the body. Is preferred.

If the wire harness is passed through a straight hard tube and fixed as described above, the wire harness moves linearly with the hard tube when the door is opened and closed, and the extra length of the wire harness is absorbed. The wire harness can be reliably pulled out from the working space and can be reliably pulled into the extra length absorption space, and the wire harness can be made to follow the opening / closing operation of the door. Moreover, since the wire harness is protected by the hard tube during the follow-up operation of the wire harness, it can be prevented that the wire harness hangs between the body and the door or is damaged by a sudden opening / closing operation.
Furthermore, if the hard tube is a cylindrical hard resin molded product and its outer peripheral surface is a smooth surface, the hard tube is in sliding contact with the guide portion, so that the generation of abnormal noise can be reduced. In addition, if the hard tube has a rectangular tube shape, it can be positioned in the rotational direction.

The tip of the hard tube and the grommet are fixed by fitting a ring on the tip of the hard tube or by projecting a flange, and inserting the tip of the hard tube into the grommet. It is preferable to fix by pushing the ring or flange into the groove.
In addition, the other end of the hard tube and the wire harness are preferably fixed by projecting a tape-wrapped tongue piece on the other end of the hard tube and fixing the tongue piece, the wire harness, and the tape.
However, the fixing of the hard tube, the grommet, and the wire harness is not limited to the above configuration, and other appropriate means may be adopted.

  When the door is a side door, the module panel is fixed to the indoor surface side of the inner panel, arranged between the inner panel and the inner trim, and a wire harness drawn out from the body side end surface opening of the guide recess It spans the body through the indoor side rather than the weather strip.

  By adopting the above-described configuration, the wire harness passes through the indoor side rather than the weather strip, so the difficult work of passing the wire harness through the door side through hole in the assembly line of the automobile can be eliminated, and the effect of using the module panel is further increased. Can be increased.

  The guide recess provided in the module panel is open to the inner trim side, and a holding plate mounted on the upper opening portion of the slide space of the guide recess portion or the substantially upper opening portion of the guide recess portion is provided on the module panel. And the wire harness may be held in the slide space.

With the above configuration, when assembling parts to the module panel at a sub-line outside the automobile assembly line or at a parts manufacturer, the guide recess opens to the inner trim side, and the wire harness is placed above the opening of the slide space. Since it can be attached with the holding plate, the working efficiency can be improved as compared with the case where the through hole is passed. Moreover, the workability | operativity of wire harness replacement | exchange in a service factory can also be improved.
Furthermore, if the holding plate closes the substantially entire surface of the guide recess, the wire harness that has passed through the guide recess can be protected from an external interference material during transfer.

The above is the basic solution of the present invention.
The effect of the present invention can be further enhanced.
The grommet is provided with a diaphragm portion, and the diaphragm portion connects the large-diameter cylindrical portion to the small-diameter cylindrical portion via the thin-walled connecting cylindrical portion, and the thin-walled connecting cylindrical portion is folded to be inside the large-diameter cylindrical portion. When the door is opened, the thin connecting cylindrical portion is pulled out from the large diameter cylindrical portion and bendable.

By providing the diaphragm portion with a thin connecting tube portion, the door can be opened and closed in the left-right direction. Therefore, at least the left and right side portions in the circumferential direction of the thin connection portion are thin, and the top and bottom sides are not necessarily thin.
In the original configuration, the diaphragm portion is inserted into the large-diameter cylindrical portion in a folded shape so that the thin-walled coupling cylindrical portion is pulled out from the large-diameter cylindrical portion when the wire harness is pulled when the door is opened. Therefore, the grommet itself can be extended by the length of the thin connecting cylinder portion, and the following operation of the wire harness can be performed more smoothly. On the other hand, even when the door is closed, the thin connecting tube portion returns to the original folded state, and the wire harness can be smoothly followed. And when the door is closed, the space between the body and the door is narrowed, but the length of the grommet itself is shortened so that it can be well accommodated in the narrow gap.

The said structure WHEREIN: Although the said hard tube is slidably penetrated in the said guide recessed part of the said door, the said grommet is provided with the opening which cannot penetrate.
With this structure, the wire harness that penetrates the opening of the guide recess is in a state protected by the hard tube, so it does not slide on the inner surface of the opening and can smoothly enter and exit the guide recess together with the hard tube. . Also, the grommet fixed to the tip of the hard tube cannot penetrate the opening of the guide recess, and the grommet is stopped at the opening position of the guide recess when the extra length of the wire harness is pulled into the extra length absorption space. Thereby, the drawing-in amount of the wire harness can be regulated. Moreover, in order to absorb the movement of the door in the rotational direction, a gap must be provided between the hard tube and the guide recess. However, the grommet is brought into contact with and pressed by the guide recess, together with the grommet. The hard tube is fixed, and it is possible to prevent the hard tube from resonating with the body vibration and generating abnormal noise.

In the above configuration, the guide recess in which the slide space for slidably housing the hard tube and the surplus length absorption space for curving and accommodating the surplus length portion of the wire harness are provided on the rigid recess. A slide space for slidably housing the tube and the surplus length absorption space for curving and accommodating the surplus portion of the wire harness are provided continuously.
Specifically, the guide recess has a peripheral wall projecting from each side of the bottom wall portion, the upper peripheral wall is straight, and a side edge on the front end side that is arranged with a linear slide space from the upper peripheral wall. The peripheral wall is gently curved downward, and the other side peripheral wall is gently curved so as to be close to the tip side peripheral wall. An opening for entrance is provided at the tip of the slide space, and a lower end opening between the pair of side peripheral walls is used as a drawer opening to the inside of the door, and a large volume portion extending from the slide space to the drawer opening is redundant. It is a long absorption space. In addition, it is preferable that the entrance / exit opening at the tip of the slide space is provided with a closed wall between the upper peripheral wall and the side peripheral wall, and a through-hole is provided in the closed wall to serve as the access opening.

Furthermore, it is preferable that a protective material having a slipperiness is attached to the extra length of the wire harness, and the protective material is slidably contacted to the inner surface of the guide recess.
Specifically, the protective material is a thin plate with a central portion protruding stepwise, and both sides thereof are taped and fixed to a wire harness, and the central stepped protrusion is slidably contacted with the inner surface of the guide recess. I am letting.
Thus, by attaching the protective material, the wire harness can be smoothly slid without directly contacting the inner surface of the guide recess. In addition, the wear of the wire harness due to repeated movement accompanying the opening / closing operation of the door can be reduced.

  The door includes a side door, a back door, and the like, and can be applied to any door as long as it is hinged to a vehicle body and is wired with a wire harness connected to the vehicle body side.

As described above, according to the present invention, a module panel in which a wire harness and electrical components connected to the wire harness are assembled in advance is provided, and the door harness routed in the module panel is drilled in the door. Since it is routed to the body side as a so-called through-less type without passing through the through-hole, the wiring work of the wire harness can be facilitated.
In addition, when the wiring structure is used, it is necessary to expand and contract the wire harness in accordance with the opening and closing operation of the door. Therefore, an extra length is provided in the module panel in advance while an extra length portion is provided in the wire harness. By doing, the structure corresponding to the expansion-contraction operation | movement of a wire harness can be provided easily.

  In addition, when the wire harness is inserted into the hard tube and moved into and out of the door, the extra length of the wire harness is placed in the extra length absorption space of the guide recess on the door side without causing the wire harness to sag. It can be securely and smoothly stored and withdrawn. And the resistance at the time of operation | movement of this wire harness can also be reduced, and noise generation can be reduced.

  Thus, the wiring structure of the wire harness of the present invention can smoothly follow the expansion and contraction and bending of the wire harness, has no sense of incongruity such as operability and abnormal noise, and has excellent water resistance, durability, and assembly workability. It is also possible to provide a wiring harness wiring structure that extends over the opening / closing part of an automobile.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 7 show an embodiment in which a wire harness (door harness) 40 routed to a side door 10 (hereinafter abbreviated as door 10) is routed to a body 20 of a vehicle body.
FIG. 1 is an exploded perspective view of a door according to the present invention. FIGS. 2A and 2B show a state in which the door 10 is opened, and FIGS. 3A and 3B show a state in which the door 10 is closed. Show.

  The door 10 has an outer panel 12 and an inner panel 11 joined together, the interior side of the inner panel 11 is widely opened, a module panel 14 is attached to close the opening, and a door trim (not shown) is further provided on the inner surface side. ) Is attached.

  The module panel 14 is formed of a resin and is assembled with necessary electrical parts and devices including a wire harness 40 and a speaker 15 connected to the wire harness 40 through a connector, and is configured as a door module 17 as a whole. . The door module 17 is assembled at a parts factory and then assembled to a door in an automobile assembly line.

The door 10 has a body-side end surface of the inner panel 11 coupled to the body 20 by a hinge 21, and the door 10 is rotatably connected with the hinge 21 as a fulcrum.
The wire harness 40 is routed through a guide recess 70 provided in the module panel 14, and a connector (not shown) connected to the terminal is connected to a required electrical component. The wire harness 40 passes through the inside of the guide recess 70 and is then pulled out from the interior side of the weather strip 13 at the body side end face of the module panel 14, and a grommet 50 is externally fitted to the tip, and the grommet 50 is attached to the body 20. It is inserted and locked in the mounting hole 22. A hard tube 60 made of a resin molded product is continuously placed on the wire harness 40 continuously with the grommet 50, and the hard tube 60 is accommodated in the guide recess 70 so as to be freely inserted and removed.

As shown in FIGS. 2A and 3A, the guide recess 70 provided in the module panel 14 has a shallow, substantially triangular shape, and a guide peripheral wall 75 projects from each side of the bottom wall portion 73. The upper side peripheral wall 75a is straight, and the side peripheral wall 75b on the distal end side that is disposed with the upper side peripheral wall 75a and the linear slide space 79 open is gently curved downward. The other side peripheral wall 75c has a shape that is gently curved so as to be close to the side peripheral wall 75b.
An entrance opening 71 is provided at the tip of the slide space 79, and a lower end opening between the pair of side peripheral walls 75 b and 75 c is used as a drawer opening 76 to the inside of the door. The large-volume portion applied to is used as a surplus length absorption space 72. The extra length absorbing space 72 is a gently curved space having a large radius toward the corners of the upper side peripheral wall 75a and the side peripheral wall 75c.
By forming the guide recess in the above-described shape, the wire harness 40 is linearly guided in the sliding space 79, while the excess length absorbing space 72 prevents the wire harness 40 from being bent sharply, and stress is concentrated at a specific location. To avoid doing.

The entrance opening 71 at the tip of the sliding space 79 is provided with a closing wall 77 between the upper side peripheral wall 75a and the side side peripheral wall 75b, and an opening 77a opened on the door trim side is provided in the closing wall 77. A wire harness or the like is passed through the opening of the opening 77a, and a holding plate 83 is attached to the door trim side opening with screws to cover the opening.
As described above, since the holding plate 83 is removable, unlike the through hole, it is easy to assemble and remove the wire harness, and the workability in the service factory as well as the manufacturing factory can be improved.

  As shown in FIG. 4, the hard tube 60 is formed of a hard resin that is not easily bent, and a flange 62 is provided at one end of a cylindrical main body portion 61, and is fitted into the grommet 50. The flange 62 may be provided by integral molding, or a separate ring may be fitted and fixed instead of the flange 62. A tape-wrapped tongue piece 63 projects from the other end, and the tape T is wound around and fixed to the tape-wrapped tongue piece 63 and the wire harness 40. Although the hard tube 60 has a cylindrical shape, it can be positioned in the rotational direction by using a square tube.

The grommet 50 has the shape shown in FIG. 5, FIG. 4 (A) is a side view seen from the door side, (B) is a cross-sectional view of the original length of the free length, and (C) is a cross-section with the door opened. FIG.
The grommet 50 is integrally formed from an elastic material such as rubber or elastomer, and has a cylindrical shape that allows the wire harness to pass therethrough.
A maximum outer cylindrical portion 51 having an oval shape is provided at one end in the axial direction, a vehicle body locking portion 52 is recessed in the outer peripheral surface, and the outer peripheral surface on the tip side of the vehicle body locking portion 52 is an inclined surface. It is easy to insert into the 20 locking holes 22.

A perfectly circular large-diameter cylindrical portion 53 is continued at an eccentric position with respect to the maximum outer cylindrical portion 51, and the large-diameter cylindrical portion 53 is continuously connected to a small-diameter cylindrical portion 55 via a thin connecting cylindrical portion 54. A pressing tube portion 56 is provided at the tip of the tube portion 55. The large-diameter cylindrical portion 53, the thin-walled cylindrical portion 54, and the small-diameter cylindrical portion 55 form a diaphragm portion 58 that can change the length in the axial direction.
The thin-walled connecting tube portion 54 is shaped in advance so as to wrap around the inside of the large-diameter tube portion 53 in a bent state, and is connected to the small-diameter tube portion 55. When the small-diameter tube portion 55 is pulled, the thin-wall connecting tube portion 54 When it is pulled out and the tensile force applied to the small-diameter cylindrical portion 55 is released, it returns to its original shape and wraps around the large-diameter cylindrical portion 53.
That is, the grommet 50 can be expanded and contracted by a certain dimension in the axial direction by the diaphragm portion 58. When the door is closed, the grommet 50 is shortened to fit in a narrow gap between the door 10 and the body 20, and when the door 10 is opened, FIG. As shown in FIG. 5, the wire harness 40 extends in accordance with the tensile force and can absorb the movement in the bending direction.

  A hard tube locking groove 57 is bulged inside the pressing tube portion 56, and a flange 62 of the hard tube 60 is fitted into the hard tube locking groove 57. The pressing tube portion 56 has an outer diameter that cannot be passed through the through hole 77a of the guide recess 70, and is pressed and contracted by contacting the closing wall 77 on the periphery of the through hole 77a when the door is closed. For this reason, even if there is a play between the hard tube 60 and the opening / exit opening 71 of the guide recess 70, resonance is caused by body vibration or the like so that no abnormal noise is generated.

  The wire harness 40 is passed through the hard tube 60 and fixed with the tape T, and then passed through the grommet 50, and the distal end of the hard tube 60 is fitted and fixed to the pressing cylinder portion 56. In this state, the hard tube 60 is slidably accommodated in the slide space 79 of the guide recess 70. The required dimension of the wire harness 40 extending from the portion fixed by the hard tube 60 and the tape T is defined as a surplus length portion 40a, and the surplus length portion 40a is accommodated in a surplus length absorbing space 72 of the guide recess 70, As shown in FIG. 7, the end portion of the extra length portion 40 a is locked by a band-type clamp 82 at the position of the drawing opening 76 of the guide recess 70.

The clamp 82 is made of a resin molded product having elasticity, and includes a band locking portion 82b at the base end portion of the band 82a. The band 82a is wound around the wire harness 40 and locked by the band locking portion 82b. A locking shaft portion 82c protrudes from the band locking portion 82b, a locking blade portion 82d is provided in a folded shape from the tip of the locking shaft portion 82c, and is locked to the tip of the locking blade portion 82d. The shape is provided with a stepped portion 82e.
The locking hole 78 formed in the guide recess 70 is locked with a gap C where the locking step 82e of the locking blade 82d is rotatable.
With the above configuration, the wire harness 40 is rotatably locked to the guide recess 70 via the clamp 82. For this reason, the clamp 82 swings in the direction shown by the arrow in FIG. 2 to reduce the bending of the wire harness 40.

Further, as shown in FIG. 6, a protective material 41 is wound and fixed on the extra length portion 40 a of the hard tube 60 with a tape T. The protective material 41 is a resin molded product having smoothness, and has a shape in which a stepped convex portion 42 is provided at the center of a rectangular substrate 41a and ribs 44 are provided at both ends.
The protective material 41 slidably contacts the stepped convex portion 42 with the inner surface of the upper peripheral wall 75a of the guide recess 70 so that the wire harness 40 does not directly contact the inner surface of the guide recess, and wears the wire harness 40. In addition, the wire harness 40 can be smoothly moved.

Next, the operation of the wire harness 40 that accompanies the opening and closing of the door in the wiring harness wiring structure having the above-described configuration will be described.
When the door 10 shown in FIG. 3 is closed and the door 10 shown in FIG. 2 is opened, the thin connecting tube portion 54 of the grommet 50 is bent along with the rotation of the door 10 so that the door 10 is routed. The bent wire harness 40 is followed.
Moreover, since the rotation fulcrum of the door 10 and the wiring position of the wire harness 40 are shifted when the door 10 is opened, the wire harness 40 needs to be extended to follow. As shown in FIG. 3 with the door closed, the surplus length portion 40a of the wire harness 40 is accommodated in the surplus length accommodating space 72 so as to be curved along the corner side. From this state, following the opening operation of the door 10, the hard tube 60 moves to the left in the figure in the slide space 79, and the hard tube 60 moves to the body 20 side through the through-hole 77 a and the entrance / exit opening 71. In accordance with this, the surplus length portion 40a in the surplus length absorbing space 72 is brought close to the side peripheral wall 75b and is pulled out from the curved state to the slanted state, as shown in FIG. It becomes.

When the door 10 is closed from the door open state shown in FIG. 2, the opening operation is reversed and the wire harness 40 is pushed into the guide recess 70 together with the hard tube 60, and the extra length portion 40 a of the wire harness 40. Is retracted and accommodated in the surplus portion absorption space 72 so as to bend along the corner portion.
The hard tube 60 is drawn into the guide recess 70, and the grommet 50 moves in conjunction with the guide recess 70, and stops at a position where the pressing cylinder portion 56 of the grommet 50 contacts the closing wall 77. . In this state, the door 10 is completely closed.

As described above, when the door 10 is opened and closed, the wire harness 40 that enters and exits the through hole 77a of the guide recess 70 is protected by the hard tube 60, and therefore does not slide on the inner surface of the through hole 77a. Enters and exits smoothly with the hard tube 60. And compared with the case where only a wire harness is used, the wire harness is not loosened between the door 10 and the body 20 and is stretched while maintaining a straight state, and is sandwiched between the door 10 and the body 20. Absent.
Further, since the grommet 50 fixed to the tip of the hard tube 60 is not allowed to penetrate the through hole 77a of the guide recess 70, the grommet 50 is stopped at the position of the through hole 77a of the guide recess 50 when the door is closed. The amount of pull-in can be regulated. In order to absorb the movement of the door 10 in the rotational direction, a space is provided between the hard tube 60 and the through hole 77a. However, the grommet 50 is brought into contact with and pressed against the closing wall 77 of the guide recess 70. Therefore, the hard tube 60 is also fixed together with the grommet 50, and it is possible to prevent the hard tube 60 from resonating with the body vibration and generating abnormal noise.

As described above, in the wire harness routing structure of the present invention, in particular, the wire harness and the electrical components connected to the wire harness are assembled in advance in the module panel. Therefore, in the assembly line, the module panel is assembled in the door. Since it is only necessary to attach it, the work process can be greatly reduced, and the work in an unreasonable posture of the operator can be reduced.
In addition, since the extra length accommodation space for accommodating the extra length portion of the wire harness and the sleat space for the wire harness are also formed in the module panel, there is an advantage that a separate member for guiding the wire harness is not required. .

FIG. 8 shows a modification of the embodiment of the present invention.
In this modification, the shape of the holding plate 83 ′ that covers the upper opening of the guide recess 70 is different from that of the above embodiment.
That is, as shown in FIG. 8, the holding plate 83 ′ has a shape that covers substantially the entire surface of the guide recess 70. However, the wire harness 40 inserted from the opening into the guide recess 70 is not covered with only the drawer opening 76 which is the lower end opening between the pair of side peripheral walls 75b and 75c of the sliding space 79. Pulled out to the door side.
The holding plate 83 ′ is attached to the module panel 14 with a clip (not shown) or a separate screw integrally formed with the holding plate 83 ′ after the wire harness 40 is inserted into the guide recess 70.

  According to the above-described configuration, the holding plate 83 ′ of the present modification is configured to close the substantially entire surface of the guide recess 70, so that the wire harness 40 passed through the guide recess 70 by the holding plate 83 ′ is transferred, etc. In addition, it is possible to protect the wire harness 40 from damages from external interference materials.

  The embodiment described above relates to the wiring structure of the wire harness that is bridged between the side door and the vehicle body of the automobile, but is not limited to the side door, and between the vehicle body and the back door or between the trunk and the lid. It can also be suitably used for a wire harness that is stretched over.

It is a disassembled perspective view which shows embodiment of this invention. The state which opened the side door is shown, (A) is the side view seen from the indoor side, (B) is sectional drawing. The sad door is in a closed state, (A) is a side view seen from the room side, and (B) is a sectional view. It is a perspective view of a hard tube. FIG. 5A is a side view of the grommet as viewed from the door side, FIG. 5B is a cross-sectional view taken along the line AA, and FIG. It is a perspective view which shows the state which attached the protective material to the wire harness. It is sectional drawing which shows the state which attached the wire harness by the clamp. It is drawing which shows the modification of embodiment. It is a perspective view which shows a prior art example. It is a perspective view which shows another prior art. It is a perspective view which shows another prior art.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Side door 11 Inner panel 13 Weather strip 14 Module panel 20 Body 21 Hinge 40 Wire harness 50 Grommet 58 Diaphragm part 70 Recessed part for guide 72 Space for absorbing excess length 79 Space for slide 82 Clamp

Claims (4)

The wiring structure of a wire harness that is routed to a door that is hinged to the body of an automobile and spans the body side,
A module panel fixed to the panel of the door is provided, the wire harness is routed to the module panel, and electrical components connected to the wire harness and necessary equipment are attached, and
The wire harness is provided with a surplus length part that follows the door opening / closing operation, and a surplus length absorbing space for curving and accommodating the surplus length part, and the wire harness can be slid continuously to the body side end face opening. A wiring harness wiring structure, characterized in that a guide recess provided with a slide space to be inserted into the module panel is provided in the module panel. The guide recess includes a linear slide space that is continuous with the body-side end surface opening, a curved, substantially triangular-shaped surplus length absorption space that is continuous with the other end of the slide space, and the surplus space. A shape with a wire harness outlet at one end of the long absorption space,
The wire harness is locked to the outlet portion of the wire harness with a clamp, and a hard tube is externally fixed to the wire harness that passes through the slide space, and the hard tube is slidably passed through the body side end surface opening, The wire harness routing structure according to claim 1, wherein the distal end of the hard tube is fixed to a grommet fitted on the wire harness, and the grommet is inserted and locked into the locking hole of the body.   The door is a side door, the module panel is fixed to the indoor surface side of the inner panel, arranged between the inner panel and the inner trim, and a wire harness drawn out from the body side end surface opening of the guide recess is provided. The wiring structure of the wire harness according to claim 1 or 2, wherein the wiring harness is bridged to the body through the indoor side rather than the weather strip.   The guide recess provided in the module panel is open to the inner trim side, and a holding plate mounted on the upper opening portion of the slide space of the guide recess portion or the substantially upper opening portion of the guide recess portion is provided on the module panel. The wiring structure of the wire harness according to claim 3, wherein the wire harness is held in the slide space.

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