JP2010132210A - 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 fixing a wire harness on a trim board rear surface and, in recycling, facilitating removal of the wire harness from the trim board. <P>SOLUTION: The door trim board 10 for the automobile is attached onto a cabin-side surface of a door inner panel for the automobile, and includes the wire harness 20 comprising a plurality of wires for electrical connection to an apparatus disposed inside a door, on a rear surface facing the cabin-side surface of the door inner panel. The trim board 10 is formed from resin material and, on the rear surface, there is formed a groove portion 11 comprising a pair of ribs 12a, 12b integrally formed. The door trim board 10 for the automobile is structured so that the groove portion 11 has a latching claw 13 for latching the wire harness 20 stored therein at a plurality of positions dispersed 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 trim board for automobile doors, which 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. And a back door of an automobile provided with the trim board.

  Conventionally, the back door 1 of the automobile shown in FIG. 13 is rocked so that it can be opened outwardly by a hinge part (not shown) with respect to an opening (not shown) provided at the rear part of the automobile body. The inner panel 1a and the outer panel 1b are press-formed from a steel plate and are movably supported.

  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 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 the product, that is, various devices, or to perform electrical connection for signal input / output. ing. Specifically, in FIG. 13, 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. 14, 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. 15, each clamp 8 is inserted through the mounting hole 1c and a contact portion 8a that contacts the periphery of the mounting hole 1c provided at the mounting position of the inner panel 1a, and extends outward in the radial direction. In addition, an engaging 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.

In the back door 1 having such a 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 7, and a tape material 9 such as an insulating tape is wound around the wire harness 7 and the protruding portion 8c. Thus, the clamps 8 are respectively fixed to predetermined portions of the wire harness 7.
From this state, the clamp 8 and the wire harness 7 are attached to predetermined positions of the inner panel 1a of the back door 1 by inserting the engaging portions 8b of the respective clamps 8 into the mounting holes 1c of the inner panel 1a of the back door 1. .

On the other hand, in Patent Document 1, a case having a wire harness insertion port and a lead-out routed from the vehicle body to the door is fixed to the vehicle body, and the wire harness meanders in a U-shape inside the case. An elastic body is interposed between the wire harness and the wire harness to urge the wire harness into the case, and the wire harness pulled out from the outlet is locked to the door. The corrugated tube is inserted into the mesh tube in advance and fitted in advance to the wire group in the mesh tube at the locking position with the door and the elastic body, and the corrugated clamp with the locking portion protruding is connected to the outer peripheral surface of the mesh tube. Fastened from the car body, and the corrugated clamp has a convex part that fits into the valley of the corrugated tube to prevent misalignment. Locking mechanism of the wire harness is disclosed that.
JP 2001-101931 A

By the way, in the above-described back door 1, the clamp 8 is fixed to the wire harness 7 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. As a result, the clamp 8 is fixed at a predetermined distance from the connector 7 a connected to the tip of the wire harness 7.
Further, in order to remove the wire harness 7 during recycling, as shown in FIGS. 16 and 17, the recycle tape 9 a is wound around the wire harness 7 corresponding to the clamp 8 as a mark of a fixing position by the clamp 8. Is done.

However, in fixing the clamp 8 to the wire harness 7 by winding the tape material 9 as described above, the winding work of the tape material 9 is necessary, and the assembling work becomes complicated. Further, when the clamp 8 is accurately positioned at a predetermined position of the wire harness 7, there may be a dimensional tolerance of the mounting position.
Furthermore, since the wire harness 7 is fixed to the inner panel 1a by the clamp 8 so as not to be removed, it is necessary to use a dedicated tool, a hoist or the like in order to remove the clamp 8 from the inner panel 1a at the time of recycling. Becomes higher.

  Further, as shown in FIG. 18, for example, the wire harness 7 does not interfere with peripheral parts P provided on the inner panel 1a or a trim board attached to the vehicle interior side surface of the inner panel 1a so as not to be cracked or damaged. In addition, a protective material 9 b such as a corrugated tube may be wound around the wire harness 7. However, winding of the protective material 9b around the wire harness 7 is not preferable because it increases the weight of the wire harness 7 and increases the cost.

  Furthermore, in order to avoid interference with other parts of the wire harness 7 or to improve assembling, the path of the wire harness 7 may be restricted. For such path regulation, a rod-like member 9c made of polypropylene (PP) or the like is fixed to the wire harness 7 as shown in FIG. 19, or by a protector 9d made of a resin material as shown in FIG. The wire harness 7 is partially covered. However, the use of such a rod-shaped member 9c and protector 9d increases the weight and cost of the wire harness 7.

  Further, when the same wire harness 7 is used for different specifications, in order to securely hold the extra length of the wire harness 7, for example, as shown in FIG. May be performed. However, when the optional stopper 9e interferes with the other parts P, abnormal noise may be generated due to vibration during driving of the automobile, or the wire harness 7 may be cracked or damaged.

  In view of the above, the present invention can securely fix and hold a wire harness on the back surface of the trim board, and can easily remove the wire harness from the trim board during recycling. And it aims to provide a back door of an automobile.

  In order to achieve the above object, a first configuration of the present invention is provided for various devices that are attached to a vehicle interior side surface of a door inner panel of an automobile and arranged in the door on the back surface facing the vehicle interior side surface. An automobile door trim board having a wire harness composed of a plurality of wirings for electrical connection, wherein the trim board is formed of a resin material and has a groove portion formed of a pair of ribs integrally formed on the back surface. The groove portion has locking claws 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. It is characterized in that it is locked in the groove by a pawl.

  In the automobile door trim board according to the present invention, the locking claw is preferably arranged in a region between the adjacent crossing portions of the groove portion.

  In the automobile trim board according to the present invention, preferably, the rib constituting the groove portion includes a notch portion at the root portion on the groove portion side in the region where the locking claw is provided.

  In the automobile door trim board according to the present invention, preferably, the groove portion protrudes inward from the inner wall surfaces of both ribs constituting the end portion through thin-walled hinge portions to grip the wire harness. Holding member.

  The automobile door trim board according to the present invention preferably includes an intermediate holding member that holds the wire harness by the groove portion rising from the bottom surface and branching into a fork shape at a plurality of locations dispersed in the longitudinal direction. Yes.

  In the automobile door trim board according to the present invention, the wire harness preferably includes a protection member that surrounds each end portion and fits into the corresponding end portion of the groove portion.

  In the automobile door trim board according to the present invention, the protective member preferably includes an engaging portion that engages with an engaging portion provided on an inner wall of a corresponding end portion of the groove portion on both side surfaces.

  In the automobile door trim board according to the present invention, preferably, a plurality of grooves are arranged in the vertical and horizontal directions so that the grooves extend in the vertical and horizontal directions on the back surface of the trim board. Spaces in which the wire harness inside the groove is to be accommodated communicate with each other at the intersection.

  In order to achieve the above object, the automobile back door of the second configuration of the present invention is characterized in that the above-described automobile door trim board is attached to the vehicle interior side surface of the door inner panel. .

  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 It is latched by the latching claw at each of the plurality of locations. Thereby, a wire harness is reliably accommodated in the groove part of a trim board.

  Further, since the groove portion extends in the vertical direction and the horizontal direction on the back surface of the trim board, the wire harness is appropriately routed on the back surface of the trim board corresponding to various devices arranged in the door panel.

  Furthermore, since the rib constituting the groove portion is provided with a notch in the root portion on the groove portion side in the region provided with the locking claw, when the wire harness is pulled during recycling, the rib region including the locking claw becomes a portion of the root portion. It is easily deformed outward by the notch. Therefore, the wire harness can be easily removed. In this case, since the wire harness is fixed to the trim board without using a conventional clip, the number of parts can be reduced, and the parts cost, assembly cost and recycling cost are reduced.

  The wire harness includes a protective member that surrounds each end portion and fits into the corresponding end portion of the groove portion, and the protective member is provided on both side surfaces on the inner wall of the corresponding end portion of the groove portion. By providing the engaging portion that engages with the wire, even if the wire harness is constituted by a bare wire, the wiring exposed between the connector at the end of the wire harness and the end of the groove is reliably protected by the protective member. The

The groove portion includes an end holding member that protrudes inward from the inner wall surfaces of both ribs constituting the end portion through thin-walled hinge portions to grip the wire harness, or at a plurality of locations dispersed in the longitudinal direction. By providing an intermediate holding member that rises from the bottom surface and branches into a fork shape and holds the wire harness, the wire harness is moved in the width direction by the end holding member or the intermediate holding member at the end of the groove and in the middle. Therefore, the wire harness does not move in the groove when the automobile is running, and the generation of abnormal noise can be suppressed.
These holding members are formed integrally with the ribs constituting the groove portions, respectively, and can be easily deformed. Therefore, the parts cost and the assembly cost are reduced, and the wire harness can be easily removed at the time of recycling. .

  In addition, according to the second configuration, since the trim board for automobile doors attached to the vehicle compartment side surface of the door panel constituting the back door of the automobile has a groove on the back surface thereof, the wire harness is trimmed. It is accommodated in a groove formed of a pair of ribs integrally formed on the back surface of the board, and is locked by locking claws at a plurality of locations dispersed in the longitudinal direction. Therefore, the wire harness is reliably accommodated in the groove portion of the trim board and is easily removed during recycling.

  Thus, according to the present invention, the wire harness can be securely fixed to the rear surface of the trim board, and the wire harness can be easily detached from the trim board during recycling.

Hereinafter, the present invention will be described in detail based on the embodiments shown in the drawings.
FIG. 1 is a view showing an automobile door trim board (hereinafter simply referred to as a trim board) 10 according to an embodiment of the present invention.
The trim board 10 is provided on the vehicle compartment side of the door panel of the back door that is swingably supported so as to be opened outwardly and upwardly by a hinge portion with respect to an opening (not shown) provided at the rear portion of the vehicle body of the automobile. Attached to the 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 overlapping 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 fixed to the inner panel compartment side surface of the door panel using an attachment member such as a clip or a screw (not shown).

  Furthermore, in this embodiment, the trim board 10 is provided with the groove part 11 in the back surface facing the compartment side surface of the door 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 a and 12 b that are integrally formed on the back surface of the trim board 10.
The pair of ribs 12a and 12b are arranged at substantially equal intervals, and define a space in which the wire harness 20 is to be accommodated. The grooves 11 in the vertical direction and the horizontal direction are formed so that the spaces communicate with each other by omitting the ribs 12a and 12b at the intersecting portion 11a.

Therefore, the wire harness 20 can be freely routed by bending or straightly moving at the intersecting portion 11a along the groove portion 11 extending in the vertical direction and the horizontal direction. Here, as shown in FIG. 2, the wire harness 20 is composed of 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.
Furthermore, the wire harness 20 is provided with a plurality of end portions in the illustrated case by branching in the middle, and in the illustrated case, four end portions, and a connector 22 is connected to each end portion.

  The groove part 11 has the latching nail | claw 13 in the area | region between the cross | intersection parts 11a mentioned above in FIG. As shown in FIG. 2, the locking claw 13 is integrally formed with a pair of ribs 12a and 12b that define the groove 11, and extends obliquely downward from the tip of the ribs 12a and 12b to the inside. The tips are opposed to each other with a gap therebetween.

Further, in the region of the locking claw 13, the pair of ribs 12a and 12b are provided with a notch 12e inside the root portion as shown in FIG. The base portions of the ribs 12a and 12b are formed thinner than the other portions due to the presence of the notches 12e.
The locking claw 13 is made of the same resin material as that of the trim board 10 and has elasticity. Further, the presence of the notch 12e at the root of the ribs 12a and 12b allows the locking claw 13 and the rib 12a, 12b can be easily deformed outward. Accordingly, when the wire harness 20 presses the locking claws 13 facing each other, the locking claws 13 are deformed into the groove portion 11, and the wire harness 20 is accommodated in the groove portion 11. Further, at the time of recycling or the like, as shown by an arrow A in FIG. 4, when the wire harness 20 is pulled upward from the inside of the groove portion 11, the wire harness 20 pushes the locking claw 13 upward, thereby the locking claw. 13 is deformed upward as indicated by an arrow B, and the ribs 12a and 12b are deformed outward as indicated by an arrow C to a position indicated by a chain line, whereby the wire harness 20 is easily detached from the groove portion 11.

  As shown in FIG. 5, the wire harness 20 includes a protective member 14 that surrounds the wiring 20 a protruding from the groove 11 at a portion near the end to which the connector 22 is connected. The protective member 14 includes a bottom wall 14a and side walls 14b, 14c that can face the bottom surface and both side surfaces of the groove portion 11. The bottom wall 14a and the side walls 14b, 14c are preferably the same resin as that of the trim board 10. It is integrally molded from the material.

  Engagement portions 14 d and 14 e that engage with engagement portions 11 b and 11 c provided on the inner wall near the end of the groove 11 are formed on the outer side surfaces of the side walls 14 b and 14 c of the protection member 14. These engaging portions 11b, 11c and 14d, 14e are formed in sawtooth shapes opposite to each other as shown in FIG. 6, and when the end portion of the wire harness 20 is about to move into the groove portion 11, This step is configured to prevent this movement by abutting each other.

  Furthermore, the protective member 14 includes a locking piece 14f that closes between the upper ends of the side walls 14b and 14c at its tip so as to be opened and closed. The locking piece 14f extends from the upper end of one side wall 14b, and includes a locking portion 14g whose tip can be locked to the other side wall 14c. Thereby, the wire harness 20 is locked by the locking piece 14f inside the protective member 14.

Instead of the protection member 14, an end holding member 15 may be provided on the end edge of the groove 11 as shown in FIG. 7.
As shown in FIGS. 8 to 10, the end holding member 15 is formed from the inner wall surface of the ribs 12 a and 12 b via the thin hinge portions 15 a and 15 b at the end edges of the ribs 12 a and 12 b constituting the groove portion 11. It protrudes inward and has grip edges 15 c and 15 d that grip the wire harness 20 and face each other near the center of the groove 11.

The grip edges 15c and 15d are opposed to each other at the lower end with almost no gap, define a gap narrower than the diameter of the wire harness 20 at the upper end, and have a circular shape that is substantially the same as the diameter of the wire harness 20 at the center in the height direction. A gap is defined. As a result, the wire harness 20 is gripped near the center of the groove 11 by the gripping edges 15c and 15d.
Further, the wire harness 20 can be easily removed upward when the end holding member 15 swings around the hinge portions 15a and 15b as shown by arrows in FIG. 10 during recycling.

  Further, as shown in FIGS. 11 and 12, the wire harness 20 is held by the intermediate holding member 16 at an intermediate position thereof, particularly at the intersecting portion 11 a of the groove 11. As shown in FIG. 12, the intermediate holding member 16 rises from the bottom surface of the groove portion 11 and branches into a fork shape, and the upper ends 16 a and 16 b can approach each other to hold the wire harness 20 inside. The intermediate holding member 16 is integrally formed with the trim board 10 and has elasticity based on the characteristics of the resin material. As a result, when the wire harness 20 is pushed from above between the upper ends 16a and 16b of the intermediate holding member 16 approaching each other, the upper ends 16a and 16b of the intermediate holding member 16 are deformed outward and are separated from each other. Therefore, the wire harness 20 is easily accommodated in the intermediate holding member 16. Further, when the wire harness 20 is pulled upward from the intermediate holding member 16 at the time of recycling or the like, the wire harness 20 pushes up the upper ends 16a and 16b of the intermediate holding member 16 and thereby the upper ends 16a and 16b. The wire harness 20 is easily detached from the intermediate holding member 16 by deforming outward.

  The automobile door trim board 10 according to the embodiment of the present invention is configured as described above, and is first provided on 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 formed. At this 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 arranged so as to meander appropriately in the groove portion 11. Thereby, the extra length mentioned above is absorbed in the wire harness 20, and it accommodates in the groove part 11 reliably. The wire harness 20 is prevented from falling out of the groove 11 of the wire harness 20 by the respective locking claws 13 provided in the groove 11.

  Further, the wire harness 20 is held in the groove 11 by the protective member 14 or the end holding member 15 at the end of the groove 11 and also in the groove 11 by the intermediate holding member 16 at the intermediate intersection 11a. Retained.

  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 an inner panel constituting the automobile back door by an appropriate means such as a clip or screwing.

  Further, since the wire harness 20 is not lifted up from the inside of the groove portion 11 by the locking claw 13, the protection member 14, or the end holding member 15 and the intermediate holding member 16, the back surface of the automobile door trim board 10 is provided. And other parts etc. do not interfere with the inner panel constituting the back door of the automobile. Therefore, the wire harness 20 is prevented from being damaged or torn due to vibration during traveling of the vehicle or the like, or pinching of the wire harness 20 when the vehicle door trim board 10 is mounted on the back door of the vehicle. Is done.

  Here, the parts for housing and holding the wire harness 20, that is, the ribs 12 a and 12 b, the locking claw 13, the end holding member 15 and the intermediate holding member 16 constituting the groove 11 are all trims for automobile doors. Since it is integrally formed with the board 10, 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 with respect to the automobile trim board 10. it can.

  Further, when the wire harness 20 accommodated in the groove 11 is pulled upward at the time of recycling or the like, the locking claw 13, the end holding member 15 and the intermediate holding member 16 are each based on the elasticity of the resin material. Therefore, the wire harness 20 can be easily detached from the groove 11 and the trim board 10.

  The present invention can be implemented in various forms without departing from the spirit of the present invention. For example, in the above-described embodiment, the case where the present invention is applied to the trim board 10 for an automobile door that is mounted on the back door of the automobile has been described. The present invention can also be applied to doors including sliding doors for seats.

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 of the groove part and locking claw in the trim board for doors of a motor vehicle along the AA line of FIG. It is a partial expanded sectional view which shows the base part of the latching claw of FIG. It is a partial expanded sectional view which shows the deformation | transformation state at the time of the wire harness removal of the latching claw of FIG. It is the elements on larger scale which show the edge part and protective member of the wire harness in the trim board for doors of the motor vehicle of FIG. It is the elements on larger scale which show the wire harness edge part and protection member of FIG. It is the elements on larger scale which show the holding member for edge parts in the trim board for doors of the motor vehicle of FIG. It is a partial expanded sectional view which shows the holding member for edge parts along the BB line of FIG. It is the elements on larger scale which show the holding member for edge parts of FIG. It is the elements on larger scale which show a connection state with the rib of the holding member for edge parts of FIG. It is a figure which shows the holding member for intermediate | middle in the trim board for doors of the motor vehicle of FIG. FIG. 12 is a partial enlarged cross-sectional view of the intermediate holding member taken along line CC in FIG. 11. It is the schematic which shows the principal part of a structure of an example of the back door of the conventional motor vehicle. It is a partial expansion perspective view which shows the attachment structure of the wire harness in the back door of FIG. It is sectional drawing which shows the attaching part of the wire harness of FIG. It is a figure which shows the attachment part of the wire harness of FIG. It is the schematic which shows the attachment state of the wire harness of FIG. It is a perspective view which shows the conventional wire harness. It is a figure which shows the conventional wire harness path | route control method. It is a figure which shows the conventional wire harness path | route control method. It is a figure which shows the method of hold | maintaining the conventional wire harness surplus length part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Door trim board 11 Groove part 11a Intersection part 11b Engagement part 12a, 12b Rib 12e Notch part 13 Locking claw 14 Protection member 14a Bottom wall 14b Side wall 14c Side wall 14d Engagement part 14f Locking piece 14g Locking part 15 End part Holding member 15a, 15b hinge portion 15c gripping edge 16 intermediate holding member 16a upper end 20 wire harness 20a wiring 21 tape 22 connector

Claims (8)

A vehicle harness provided with a wire harness comprising a plurality of wirings that are attached to a vehicle compartment side surface of a vehicle door inner panel and electrically connect to a device disposed in the door on the back surface facing the vehicle compartment side surface. A door trim board,
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 locking claw for locking the wire harness housed inside 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 locking claw.   2. The automobile door trim board according to claim 1, wherein a rib constituting the groove portion includes a notch portion at a root portion on the groove portion side in a region including the locking claw.   The groove portion includes an end holding member that protrudes inward from the inner wall surfaces of both ribs constituting the end portion via thin-walled hinge portions and grips the wire harness. The trim board for automobile doors according to claim 1 or 2.   The said groove part is equipped with the holding member for intermediate | middle which hold | maintains the said wire harness which stands | starts up from the bottom face in several places distributed in the longitudinal direction, branches in a fork shape, and is characterized by the above-mentioned. A trim board for automobile doors according to any one of the above.   A plurality of the groove portions are arranged vertically and horizontally on the back surface of the trim board so as to extend in the vertical direction and the horizontal direction, and the wire harness inside the groove portion is accommodated at the intersection of the vertical groove portion and the horizontal groove portion. The automobile trim board according to any one of claims 1 to 4, wherein the spaces to be communicated with each other.   6. The automobile door trim according to claim 1, wherein the wire harness includes a protective member that surrounds each end portion and fits into a corresponding end portion of the groove portion. board.   The automobile door according to claim 6, wherein the protection member includes an engagement portion that engages with an engagement portion provided on an inner wall of a corresponding end portion of the groove portion on both side surfaces. Trim board.   An automobile back door, wherein the trim board for an automobile door according to any one of claims 1 to 7 is attached to a vehicle interior side surface of a door inner panel constituting the back door of the automobile.