JP2010132242A - Door trim board for automobile, and back door for automobile - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a door trim board for an automobile, capable of reliably retaining a wire harness on a trim board rear surface by absorbing a dimensional tolerance of the wire harness. <P>SOLUTION: The door trim board 10 for the automobile is installed on a cabin-side surface of a door panel for the automobile, and includes the wire harness 20 comprising a plurality of wires electrically connected to various types of apparatuses disposed in the door panel. The door trim board 10 includes a groove portion 11 comprising a pair of ribs 12 made of resin material and integrally formed on the rear surface. The groove portion 11 has a stopper member 13 for latching the wire harness 20 storing therein at a plurality of positions scattered in the longitudinal direction, and the wire harness 20 is routed along the groove portion 11 inside and latched in the groove portion 11 by the latching claw 13. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a vehicle door trim that is attached to a vehicle interior side surface of a door inner panel of an automobile, and a wire harness that is electrically connected to various devices arranged in the door inner panel on the back surface of the door inner panel. The present invention relates to a board and a back door of an automobile equipped with the trim board.

  Conventionally, a back door 1 of an automobile as shown in FIG. 5 can be opened outward and upward by a hinge part (not shown) with respect to an opening (not shown) provided at the rear part of the body of the automobile. The inner panel 1a and the outer panel 1b are press-molded from a steel plate.

  This type of back door 1 incorporates lamps such as a lance lamp and tail lamp, and various electrical components such as a rear wiper, rear window defogger, antenna, and back camera as necessary. A so-called wire harness 7 composed of a plurality of wirings electrically connected to the vehicle body side is routed to the back door 1 in order to supply power to products, that is, various devices, or to perform electrical connection for signal input / output. ing. Specifically, in FIG. 5, the back door 1 includes a license lamp connector 2, a rear window defogger connector 3, a back door open switch connector 4, a touch sensor connector 5, a back door closer connector 6, and the like. It is fixed on the panel 1a. In order to make electrical connection to these connectors 2 to 6, the wire harness 7 is routed along the inner surface of the inner panel 1 a on the passenger compartment side.

  As shown in FIG. 6, the wire harness 7 is attached to the inner panel 1a by clamps 8 at appropriate intervals so that the whole is fixed to the inner panel 1a. As shown in FIG. 7, each clamp 8 is inserted into the mounting hole 1 c that contacts the periphery of the mounting hole 1 c provided at the mounting position of the inner panel 1 a, and extends outward in the radial direction. And an engagement portion 8b that engages with the periphery of the mounting hole 1c from the back side, and an overhanging portion 8c that extends from the contact portion 8a to the opposite side along the surface of the inner panel 1a.

According to the back door 1 having this configuration, the upper surface of the protruding portion 8c of the clamp 8 is brought into contact with a predetermined portion of the wire harness, and the tape material 9 such as an insulating tape is wound around the wire harness 7 and the protruding portion 8c. Turned. Thereby, the clamp 8 is fixed to each predetermined portion of the wire harness 7.
From this state, the engaging portion 8b of each clamp 8 is inserted into the mounting hole 1c of the inner panel 1a of the back door 1, so that the clamp 8 and the wire harness are attached to a predetermined position of the inner panel 1a of the back door 1. .

  In contrast, in Patent Document 1, a door frame of an automobile and a door electrical component connected to the door harness are fixed and attached to a panel in advance, and the door frame is closed so as to close the indoor opening of the door frame. A door module panel, wherein the panel is made of a resin molded product, and a positioning holding portion of a wire harness arranged on the panel surface is integrally formed and protruded. It is disclosed.

  Patent Document 2 discloses an automobile having an outer panel swingably attached to a body of an automobile, an inner panel attached to the inner side of the outer panel, and a door harness for wiring components attached to the inner panel and attached to the door. In the door, the inner panel is provided with a groove for fitting and fixing the door harness, and the door panel is integrated by assembling the door mounting component and the door harness into the inner panel. A vehicle door is disclosed in which a connector that is inserted into a grommet integrated with the body and connected to a body side harness is disposed outside the grommet.

Furthermore, Patent Document 3 discloses a wire harness fixing structure for attaching a wire harness on the surface of a member to be fixed (instrument panel, trim board, etc.), and a locking projection having engaging teeth on the side surface. And a flexible piece having a locking hole through which the locking protrusion can be inserted and which can lock the engaging teeth at the tip end, protrudes on the surface of the fixed member to which the wire harness is attached. A fixing structure for a wire harness is disclosed.
JP 2002-280126 A JP 2000-016194 A JP 2000-004524 A

  In the back door 1 described above, the clamp 8 is fixed to the wire harness by fixing the protruding portion 8 c of the clamp 8 to the predetermined portion of the clamp 8 by winding the tape material 9. Thereby, for example, as shown in FIG. 8A, the clamp 8 is fixed at a predetermined distance d1 from the connector 7a connected to the tip of the wire harness 7.

  However, in fixing the clamp 8 to the wire harness by winding the tape material 9 as described above, the winding operation of the tape material 9 is necessary, and the assembling operation is complicated, and the clamp 8 is fixed to the predetermined wire harness 7. It is difficult to accurately position and fix at a location, resulting in a dimensional tolerance of the mounting position.

  For this reason, for example, as shown in FIG. 8B, the distance d2 from the connector 7a described above may be longer than the predetermined distance d1 described above due to the dimensional tolerance of the mounting position of the clamp 8. In this case, when the clamp 8 is mounted in the mounting hole 1c of the inner panel 1a, the wire harness 7 positioned between the mounting position of the clamp 8 and the connector 7a is loosened.

When such loosening of the wire harness 7 occurs, as shown in FIG. 9, the wire harness 7 does not pass the desired path in the inner panel 1a, and the bent portion is indicated by reference numeral 7A in FIG. It protrudes largely outside or meanders inward as indicated by reference numeral 7B in FIG. Moreover, when the wire harness 7 is shorter than a predetermined dimension, as shown by a reference numeral 7C in FIG.
For this reason, when the trim board is mounted on the inner panel 1a, the wire harness 7 is sandwiched between the trim board and the inner panel 1a, or the slack portion of the wire harness 7 is the surface of the inner panel 1a of the back door 1. The wire harness may interfere with other parts around it.

  Therefore, in order to avoid cracks and breakage of the wire harness 7 due to vibrations or the like during driving of the automobile even if such pinching or interference occurs, a protective material is disposed on a portion that is likely to interfere. In addition, it is necessary to incorporate a supplementary material for regulating the routing route of the wire harness 7. For this reason, the number of parts increases, the assembly work becomes complicated, and the part cost and assembly cost increase. Further, when the automobile is disassembled, it becomes difficult to separate the wire harness from the back door 1 for recycling.

  On the other hand, in the door module panel according to Patent Document 1, a part of the door inner panel is configured as a separate panel, and the door electrical component is fixed to the panel. The wire harness to be connected to is fixed by a positioning holding part integrally formed on this panel. Thereby, since it is not necessary to fix a wire harness to a panel with a clip, a clip becomes unnecessary. However, a separate panel is required, the number of parts increases, the number of assembly steps increases, and the wire harness is not configured to absorb slack.

  In the automobile door according to Patent Document 2, the wire harness is fitted into a groove provided in the resin inner panel, thereby being fixed to the inner panel. However, if the wire harness is slack, the wire harness cannot be securely fitted into the groove, and a part of the wire harness may protrude from the groove and interfere with other parts.

  Furthermore, in the wire harness fixing structure according to Patent Document 3, the wire harness fixing member is fixed by a locking protrusion and a flexible piece integrally formed on a fixing member such as a resin door trim. However, the wire harness is not configured to be fixed to the door panel, and is not configured to absorb the slack of the wire harness.

  SUMMARY OF THE INVENTION In view of the above, the present invention provides a vehicle door trim board and a vehicle back door that absorb the dimensional tolerances of the wire harness and can securely fix and hold the wire harness on the rear surface of the trim board. It is intended to provide.

  In order to achieve the above object, a first configuration of the present invention is attached to a vehicle interior side surface of a door inner panel of an automobile and disposed in the door inner panel on a back surface facing the vehicle interior side surface of the door inner panel. An automotive door trim board having a wire harness composed of a plurality of wirings for electrical connection to a device, comprising a groove formed of a pair of ribs formed of a resin material and integrally formed on the back surface And the groove portion has a retaining member for locking the wire harness housed therein at a plurality of locations dispersed in the longitudinal direction, and the wire harness is routed along the groove portion and is retained by the retaining member in the groove portion. It is characterized by being locked to.

  The back door structure of an automobile according to the present invention is preferably integrally formed so that the retaining member extends from the tip of one rib defining the groove portion toward the other rib through the thin hinge portion. The front end has an engaging portion that can be engaged with the outside of the other rib.

  In the back door structure of an automobile according to the present invention, preferably, the groove portion includes a plurality of protrusions arranged in the width direction at a plurality of locations dispersed in the longitudinal direction, and the wire harness is disposed between these protrusions. Alternatively, by being selectively inserted into the gap between the protrusion and the side wall of the groove, movement in the width direction is prevented in the groove.

  In the back door structure for an automobile according to the present invention, preferably, a plurality of grooves are arranged vertically and horizontally on the back surface of the trim board so as to extend in the longitudinal direction and the lateral direction, and the intersection of the longitudinal groove part and the lateral groove part is provided. In the portion, spaces in which the wire harness inside the groove portion should be accommodated communicate with each other.

  In the back door structure of an automobile according to the present invention, the retaining member is preferably arranged in a region between the adjacent intersections of the groove portion.

  According to a second aspect of the present invention, there is provided a backdoor for an automobile, wherein the above-described trim board for an automobile door is attached to a compartment side surface of a door panel constituting the automobile backdoor. Is achieved.

  According to said 1st structure, the wire harness which should be attached to the back surface of the trim board for motor vehicle doors is accommodated in the groove part which consists of a pair of rib integrally molded by the back surface of the trim board, and disperse | distributes to the longitudinal direction The plurality of places are locked by the retaining members. Thereby, a wire harness is reliably accommodated in the groove part of a trim board.

  By providing a plurality of protruding portions arranged in the width direction at a plurality of locations where the groove portions are dispersed in the longitudinal direction, the wire harness has, for example, a surplus length based on a dimensional tolerance with respect to a predetermined dimension. Even if there is a slack, the wire harness is inserted into an appropriately selected gap among a plurality of gaps between the plurality of protrusions or between the protrusions and the side wall of the groove.

  Thereby, the movement in the width direction is prevented in the groove portion of the wire harness, and the slack is absorbed by meandering along the longitudinal direction in the groove portion, and is securely accommodated in the groove portion. Therefore, even if the wire harness is slack, a part of the wire harness is not lifted from the groove and does not interfere with other parts. For this reason, a part of the wire harness is not broken or torn due to interference with other parts due to vibration during driving of the automobile or pinching when the trim board is mounted.

  In addition, according to the second configuration, the automobile door trim board attached to the passenger compartment side surface of the door panel constituting the back door of the automobile has a groove on the back surface thereof, so that the wire harness is trimmed. It is accommodated in a groove formed by a pair of ribs integrally formed on the back surface of the board, and is locked by a retaining member at a plurality of locations dispersed in the longitudinal direction. Therefore, the wire harness is securely accommodated in the groove portion of the trim board.

Hereinafter, the present invention will be described in detail based on the embodiments shown in the drawings.
1 to 3 show a configuration of an embodiment of an automobile door trim board to which the present invention is applied.
In FIG. 1, a trim board 10 is a door panel of a back door that is swingably supported so as to be opened outward and upward by a hinge portion with respect to an opening (not shown) provided at the rear of a vehicle body of an automobile. It is attached to the passenger compartment side surface. Here, the door panel of the back door is composed of an inner panel and an outer panel press-formed from steel plates, respectively, and the back door is configured by superimposing these panels so that a hollow region is defined inside, Various devices are arranged inside the hollow, and lamps such as license lamps and tail lamps, and various electrical components such as rear wipers, rear window defoggers, antennas, and back cameras are incorporated in the outer panel as necessary.

  The trim board 10 is formed of a resin material, and is fixedly held to the inner panel compartment side surface of the door panel by using an attachment member (not shown) such as a clip or a screw.

  Furthermore, the trim board 10 is provided with the groove part 11 in the back surface facing the compartment side surface of the inner panel which should be mounted | worn as shown in FIG. In the illustrated case, two grooves 11 are arranged side by side in the vertical direction and the horizontal direction, and intersect each other, for example, in a T shape or a cross shape.

  The groove 11 is formed by a pair of ribs 12 integrally formed on the back surface of the trim board 10. The pair of ribs 12 are arranged at substantially equal intervals, and defines a space in which the wire harness 20 should be accommodated. And the groove part 11 of the vertical direction and the horizontal direction is formed so that this space may mutually communicate by abbreviate | omitting the rib 12 in the cross | intersection part 11a. The wire harness 20 can be freely routed by bending or moving straight at the intersecting portion 11a along the groove 11 extending in the vertical direction and the horizontal direction.

  As shown in FIG. 2, the wire harness 20 includes a plurality of wirings 20 a that make electrical connection to various devices arranged in the door panel, and the whole is bundled with a tape 21. A plurality of wire harnesses 20 are branched by branching in the middle, and in the case of FIG. 1, four end portions are provided, and connectors 22 are connected to the respective end portions.

The groove portions 11 have a plurality of retaining members 13 in a plurality of locations dispersed in the longitudinal direction, for example, in the region between the intersecting portions 11a described above with reference to FIG.
As shown in FIG. 2, the retaining member 13 is integrally formed with one rib 12a that defines the groove portion 11, and the other rib 12d from the tip 12b of the rib 12a through the thin hinge portion 12c. It has the engaging part 13a which protrudes below from the front-end | tip. The engaging portion 13a includes an engaging claw 13b that protrudes on the opposite side to the groove portion 11 at the lower end.
Here, the retaining member 13 is made of the same resin material as that of the trim board 10 and has elasticity, and the engaging portion 13a and the engaging claw 13b also have elasticity.
An engaging portion 14 rising from the rear surface of the trim board 10 is integrally formed at a position a predetermined distance from the other rib 12d to the opposite side of the one rib 12a. The engaging portion 14 has an engaging claw 14a that protrudes toward the groove portion 11 side.
When the retaining member 13 covers the groove 11 and the engaging portion 13a is pressed between the rib 12d and the engaging portion 14, the engaging claw 13b is deformed to the groove 11 side against elasticity. Then, after passing through the engaging claw 14a of the engaging portion 14, it is restored to the opposite side to the groove portion 11 based on elasticity and engaged with the engaging claw 14a. Thereby, the retaining member 13 is locked with the groove 11 closed.

Furthermore, the groove part 11 of this embodiment has the several protrusion part 15 arranged in the width direction in the area | region adjacent to the cross | intersection part 11a mentioned above in FIG. .
The protrusions 15 are integrally formed with the automobile door trim board 10 and rise substantially parallel to each other from the bottom of the groove 11 as shown in FIGS. 3 and 4. And each protrusion part 15 has the space | interval substantially the same as the outer diameter of the wire harness 20 between the adjacent protrusion part 15 or the side wall of the groove part 11. FIG. In addition, although the protrusion part 15 is formed in the elongate column shape in the illustration, other arbitrary shapes may be sufficient as it.
With these protrusions 15, the wire harness 20 has a gap selected from among a plurality of gaps defined between the protrusions 15 or between the protrusions 15 and the side wall of the groove 11 in the groove 11. 3 is positioned and held so as not to move in the width direction within the groove 11 by being inserted into the gap between the uppermost protrusion 15 in FIG. 4 and the leftmost protrusion 15 and the side wall of the groove 11.

  The automobile door trim board 10 according to the embodiment of the present invention is configured as described above, and is first attached to the back surface of the trim board 10 before being attached to the inner panel of the automobile back door (not shown). The wire harness 20 is accommodated in the groove 11 provided in the. At that time, when the wire harness 20 has a surplus length with respect to a predetermined dimension due to a dimensional error of the wire harness 20, the wire harness 20 is formed between the protrusions 15 in the region of the protrusion 15 provided in the groove 11. It is arranged so as to meander in the groove portion by being inserted into an arbitrary selected gap among the gaps or the gap between the protruding portion 15 and the side wall of the groove portion 11.

  As a result, the wire harness 20 meanders appropriately in the groove portion 11, so that the above-described surplus length is absorbed and securely accommodated in the groove portion 11. Thereafter, the engaging claws 12e of the retaining members 13 provided in the groove portions 11 are engaged with the engaging claws 14a of the engaging portions 14, so that the retaining members 13 are locked in a state where the groove portions 11 are closed. Is done. This prevents the wire harness 20 from falling out of the groove 11.

In this manner, the automobile door trim board 10 in which the wire harness 20 is accommodated in the groove 11 is disposed to face the inner panel constituting the back door of the automobile, and each connector of the wire harness 20 is connected to the inner panel. Connected to connectors of various devices attached to the.
After that, the automobile door trim board 10 is attached to the inner panel constituting the automobile back door by an appropriate means such as a clip or screwing.

In this case, even if the length of the wire harness 20, that is, the length from the branch portion to the end and the connector 22 has a surplus length due to a dimensional error with respect to the predetermined length, the surplus length is This is absorbed by meandering in the groove 11 by the protrusion 15.
Accordingly, since the wire harness 20 does not float from the inside of the groove portion 11 due to the slack, it does not interfere with other parts or the like between the back surface of the automobile door trim board 10 and the inner panel constituting the automobile back door. . Accordingly, the wire harness 20 may be damaged or the wire harness 20 may be torn due to vibration during driving of the vehicle or the like, or pinching of the wire harness 20 when the vehicle door trim board 10 is attached to the back door of the vehicle. There is no end to it.

  Here, the parts for housing and holding the wire harness 20, that is, the rib 12, the retaining member 13, and the projecting portion 15 constituting the groove portion 11 are all integrally formed with the trim board 10 for an automobile door. The number of parts can be reduced, the parts cost and the assembly cost can be reduced, and the wire harness 20 can be easily assembled in a short time to the automobile door trim board 10.

  The present invention can be implemented in various forms without departing from the spirit of the present invention. For example, the door trim board 10 is not limited to being mounted on a back door of an automobile, but may be applied to other doors, a door including a so-called front door for a driver seat and a passenger seat, or a slide door for a rear seat. Is possible.

It is a schematic front view which shows the structure of one Embodiment of the trim board for motor vehicle doors by this invention. It is a partial expanded sectional view along the AA line which shows the retaining part in the trim board for doors of the motor vehicle of FIG. FIG. 2 is a partially enlarged front view showing a groove portion of the door trim board of the automobile shown in FIG. 1. It is a partial expanded sectional view along the BB line which shows the protrusion part in the groove part of FIG. It is a schematic front view which shows the principal part of a structure of an example of the back door of the conventional motor vehicle. FIG. 6 is a partially enlarged perspective view showing a wire harness mounting structure in the back door of FIG. 5. It is sectional drawing along CC line which shows the attachment part of the wire harness of FIG. It is a partial expansion perspective view which shows the dimension crossing in the attachment part of the wire harness of FIG. It is the schematic which shows the meander in the attachment state by the dimension crossing of the wire harness of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Trim board 11 Groove part 11a Crossing part 12, 12a, 12d Rib 12b Tip 12c Hinge part 12e Engaging claw 13 Retaining member 13a, 14 Engaging part 13b, 14a Engaging claw 15 Protrusion part 20 Wire harness 20a Wiring 21 Tape 22 connector

Claims (5)

A wire comprising a plurality of wirings that are attached to a vehicle compartment side surface of a door inner panel of an automobile and that make electrical connection to a device disposed in the door inner panel on the back surface of the door inner panel facing the vehicle compartment side surface. A trim board for a car door with a harness,
It is formed from a resin material, and includes a groove portion formed of a pair of ribs integrally formed on the back surface,
The groove portion has a retaining member for locking the wire harness housed therein at a plurality of locations dispersed in the longitudinal direction,
A trim board for an automobile door, wherein the wire harness is routed along the groove and is locked in the groove by the retaining member.   The retaining member is integrally formed so as to extend from the tip of one rib defining the groove portion to the other rib via a thin hinge portion, and the tip can be engaged with the outside of the other rib. The automobile door trim board according to claim 1, further comprising an engaging portion.   The groove includes a plurality of protrusions arranged in the width direction at a plurality of locations dispersed in the longitudinal direction, and the wire harness is between these protrusions or between the protrusion and the sidewall of the groove. 3. The automobile door trim board according to claim 1, wherein movement in the width direction is prevented in the groove portion by being inserted into the gap. 4.   A plurality of the groove portions are arranged in the vertical and horizontal directions so as to extend in the vertical direction and the horizontal direction on the back surface of the trim board, and the wire harness inside the groove portion is arranged at the intersection of the vertical groove portion and the horizontal groove portion. The trim board for automobile doors according to any one of claims 1 to 3, wherein spaces to be accommodated communicate with each other.   An automobile back door, wherein the trim board for an automobile door according to any one of claims 1 to 4 is attached to a vehicle interior side surface of a door inner panel constituting the back door of the automobile.