JP2001151043A - Wiring structure to hinged double door of luggage compartment of automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a wire harness extending from a vehicle body to a hinged double door on the rear end of a luggage compartment from being seen from the outside when the door is closed. SOLUTION: Grommets 19-1, 19-2 are attached to the positions near both ends of a curled cord 17 by using a curled cord 17 extending from a vehicle body 12 to a door 13. A recessed part 12b is provided on the rear end surface 12a of the vehicle body, through-holes 12c, 13c are formed on parts facing the inner surface of the recessed part 12b and the recessed part 12b of the door 13 the grommets 19-1, 19-2 are mounted on the through-holes 12c, 13c, and the curled cord 17 is attached.

Description

DETAILED DESCRIPTION OF THE INVENTION

Description: BACKGROUND OF THE INVENTION The present invention relates to a wiring structure for a double door in a luggage compartment of an automobile. More specifically, a wiring harness is arranged from a vehicle body to a double door type back door which opens right and left from a center of a rear end of the vehicle body. The purpose is to improve the appearance and the like at the location where the measure is taken.

2. Description of the Related Art Conventionally, as a back door at the rear of a luggage compartment of an automobile, a double door type door that opens and closes at a wide angle of 180 degrees or more is provided with a wiring harness from the vehicle body side to the door side outside the vehicle body around a door hinge portion. What you do is common.

FIGS. 7 (A), 7 (B) and 7 (C) show a wiring harness wiring portion of a conventional double door type door 3 at the rear end of a vehicle. The door 3 is generally equipped with various lamps such as a stop lamp and a turn signal lamp, and electrical components such as a rear wiper. A wire harness for supplying electric power and various signals to these lamps is provided from the vehicle body 2 to the back door. It has been allocated to 3. The double door type door 3 is often used for commercial vehicles and the like, and may be opened and closed in a range of 0 to 270 degrees in consideration of loading and unloading of luggage.

[0004] In order to follow the opening and closing of the door 3, a grommet 5 having a bellows portion 5a for protecting the wire harness is attached to a wire harness W / H that crosses the vehicle body 2 and the door 3, and the grommet 5 is door hinged. The vehicle body 2 and the door 3 are fixed to the vehicle body 2 and the door 3 by screws 6 around the outside of the vehicle 4. At this time, the vertical portion 5b of the grommet 5 is
Are arranged on the same straight line as the center of rotation of the grommet 5 to prevent the grommet 5 from being caught in the gap S between the door 3 and the vehicle body 2.

The grommet 5 is integrally formed of a flexible rubber, is formed in a state shown by a solid line in FIG. 8, and is bent or twisted by rotation of the door due to bending of the bellows portion 5a or the like. So that it absorbs. The reason why the grommet 5 is mounted outside the vehicle as described above is that if the grommet 5 is mounted inside the vehicle, it may be caught at the time of loading and unloading of cargo, and it is difficult to cope with a case where the door is opened up to 270 degrees. As described above, in the conventional wiring structure, the wire harness W / H is once taken out from the vehicle body to the outer surface, and is wired to the door 3 through the inside of the grommet 5. Note that the above wiring is usually performed by doors on both the left and right sides of the double door.

FIGS. 9 (A), 9 (B) and 9 (C) show a state in which the door 3 to which the grommet 5 is attached is opened at 90 degrees, 180 degrees and 270 degrees. Of the bellows portion 5a is appropriately deformed so as not to obstruct the opening and closing of the door.

[0007]

As described above, since the grommet 5 is attached to the outside of the vehicle body, there is a possibility that the appearance design of the automobile is spoiled aesthetically. In addition, when the grommet 5 is directly splashed with water during rainfall, car washing, or the like, it is necessary to ensure sufficient sealing performance at the base portion 5c attached to the vehicle body 2 or the door 3. However, since the grommet 5 is directly exposed to direct sunlight, wind and rain, the material is liable to be deteriorated or the like, and there is a problem that it is difficult to maintain the above-mentioned sealing property for a long time.

Further, since the grommet 5 protrudes to the outside, the grommet 5 may be easily caught by an obstacle or the like during traveling, and may be easily damaged. In addition, the internal wire harness may be disconnected. In addition, since the grommet 5 has a complicated shape having the bellows portion 5a, there is also a problem that it is expensive to produce a grommet molding die.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problem. By changing a wiring portion of a wire harness extending from a vehicle body to a door, a grommet attached to the outside of the vehicle body is not required, and a conventional grommet is not required. It is an object to solve various problems caused by a wiring structure.

[0010]

In order to solve the above-mentioned problems, the present invention relates to a wiring structure from a vehicle body to a double door which is rotatably attached to a rear end of a vehicle body and opens and closes a rear luggage compartment. Among the wires routed from the inside of the vehicle body to the inside of the door, a portion exposed to the outside between the vehicle body and the door is a curl cord, and grommet is attached at a position near both ends of the curl cord, Either the rear end surface of the vehicle body or a portion of the door facing the rear end surface,
Alternatively, a concave portion is provided on both sides, a through hole is formed in the inner surface of the concave portion on one side and a surface facing the concave portion, and one end of the grommet is attached to the through hole formed on the vehicle body side to curl. Pull out the curled portion of the cord, attach the grommet on the other end side of the curled cord to a through hole formed on the door side, wire the wire inside the door, and when the door is closed, the curled cord is housed in the recess. The present invention provides a wiring structure to a double door of a luggage compartment of an automobile characterized by having a configuration as described above.

In this manner, the wiring location of the wire harness from the vehicle body to the door at the rear end of the vehicle luggage compartment is not performed from the outer surface of the vehicle body, but is opposed to the rear end surface of the side of the vehicle body and the rear end surface of the door. When the back door is closed, the wire harness does not need to be located outside the vehicle body, and the grommet for protection insertion can be unnecessary. In addition, if a curl cord is used for the wiring harness itself at the wiring location, it can follow the opening and closing of a double door type door that opens and closes at a wide angle. Further, if the take-out portion of the curl cord is formed as a concave portion, the curl cord is accommodated when the back door is closed, and the curl cord can be prevented from being pinched by the back door and the vehicle body. The concave portion may be provided on either the vehicle body side or the door side in consideration of the form of the vehicle or the like, or may be provided on both the vehicle body and the door.

It is preferable that the through hole formed on the vehicle body side and the through hole formed on the door side have different positions in the vertical direction. As described above, if the height of the through hole for attaching the curl cord on the vehicle body side and the door side is made different, the curl cord can smoothly fit in the recess when the door is closed, and the curl cord may be bent more than necessary. Can be prevented. Further, since the curl cord can be mounted simply by fitting it into the through hole, the mounting operation can be performed without using a screw or the like and without trouble. Further, it is preferable that the door be rotated 270 degrees with respect to the vehicle body. When the curl code is used for the back door that opens and closes at a wide angle in this manner, the expansion and contraction of the curl code can sufficiently follow the opening and closing of the door.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. 1 (A) and 1 (B) show a wiring structure from a luggage compartment door of the present invention to a luggage compartment door 13 which is rotatably mounted at the rear end 12f of the luggage compartment from the vehicle body 12. FIG. The curl cord 17 is used for the wire harness. The curl code 17 is applied to a portion exposed to the outside between the vehicle body 12 and the door 13, and includes lamps such as a stop lamp, a turn signal lamp, a license plate lamp, etc., and a rear wiper and the like provided on the door 13. Power and various electrical signals.

As shown in FIG. 2, the curl cords 17 are provided at both ends with connectors 18-1 and 18 for connection to wire harnesses arranged on the vehicle body 12 and the door 13, respectively.
-2, and a fitting groove 1 for fitting into through holes 12c, 13c to be described later of the vehicle body 12 and the door 13.
Grommets 19-1, 2 having 9-1b and 19-2b
Are integrally molded near both ends.

Each end 1 of the grommets 19-1 and 2
The shapes of 9-1c, d, 19-2c, and d regulate the direction in which the curl cord 17 extends. Is determined. Also, the fitting grooves 19-1b, 19-2
As for b, since the mounting portion of the grommet is not exposed to the outside as described later, the level required for waterproofness is not higher than in the conventional case, and is simple. As described above, since the grommets 19-1 and 19-2 have a small and simple structure as compared with the related art, a small and simple mold used for molding is used.

Between the grommets 19-1 and 19-2 of the curl cord 17, a curl portion 1 in which the cord is spirally wound.
7a, when both ends of the curled portion 17a are pulled in a direction away from each other, the curled portion 17a is extended so as to cope with the extension of the cord length. The length of the curl portion 17a is set in consideration of the distance from the center of the door hinge 14, which is the center of rotation of the door 13, to the through holes 12c, 13c, the opening / closing angle of the door, and the like.

The vehicle body 1 to which the curl cord 17 is mounted
A concave portion 12b is provided in the rear end surface 12a of the side portion on the second side, and the through hole 12b is formed above an inner surface 12k of the concave portion 12b.
a is provided. The size and depth of the recess 12b are
Curled portion 17a of curl cord 17 and grommet 19
-1 and 2 are set to a size that can accommodate the curl side portions 19-1a and 2a. On the other hand, the through hole 13c of the door 13
Is provided on a surface corresponding to a lower portion of the inner surface 12 k of the concave portion 12. By making the through-holes 12c, 13c different by the height T in the vertical direction within the range of the vertical dimension of the concave portion 12b in this manner, the end portions 19-1 of the grommets 19-1, 2 are formed.
Due to the regulation of the shapes of c and 2c, the curl portion 17a can be smoothly accommodated without interfering with the concave portion 12b or the like in a state of being bent down without being bent into a U-shape or the like.

The through holes 12c and 13c are shown in FIG.
As shown in the figure, the through hole 13c on the door side may be arranged above and the through hole 12c on the vehicle body side may be arranged below. Further, the through hole 12c provided in the concave portion 12b may be provided on the upper and lower peripheral walls 12d and e in addition to the inner surface 12k of the concave portion 12b in consideration of the connectivity of the connector and the like.

The curl cord 17 is attached by inserting the connector 18-1 on the vehicle body side into the through hole 12c and connecting to the connector C1 of the wire harness routed on the vehicle body 12,
The grommet 19-1 is pushed into the through hole 12c and fitted. Similarly, on the door side, the connector 18-2 is inserted into the through hole 13c to connect with the connector C2 of the wire harness arranged inside the door, and the grommet 19-2 is fitted into the through hole 13c. . As described above, since the curl cord 17 can be attached without using a screw or the like, the attachment workability is improved.

FIGS. 3A and 3B show a state in which the curl cord 17 attached as described above is housed in the recess 12b when the door is closed. Since the curl cord 17 accommodated in this manner is not exposed to the outside, the curl cord 17 and the grommet 19-1, 2 are not affected by direct sunlight, wind and rain, and do not deteriorate the appearance of the vehicle. Has been reduced. In addition, since water is not directly applied even during rain or car washing, it is easy to secure sealing properties, and the possibility that the wire harness is caught by an obstacle or the like during traveling is eliminated.

FIGS. 5A, 5B and 5C show the back door 1.
3 shows the state of the curl cord 17 when it is opened at 90 degrees, 180 degrees, and 270 degrees from the time when it is closed. When the door is opened, the curl portion 17a shown in FIG. The curled portion 17a wound in the order of FIGS. 5A, 5B, and 5C is extended and pulled out from the concave portion 12b. On the other hand, when the door is closed, the extended curled portion 17a is returned as the door 13 is closed, and is gradually accommodated in the concave portion 12b in the reverse order. Thus, the curl portion 17a follows the opening and closing of the door, and does not hinder the opening and closing of the door. Also, when the door is open,
Since the curl cord 17 is located along the inner side 13d of the door 13 and does not protrude into the room, the curl cord 17 does not hinder the loading and unloading of luggage and the like and does not get caught.

When the door 13 is closed from the time when the door is opened as shown in FIGS. 5A to 5C, it appears that a part of the cord of the curl portion 17a is sandwiched in the gap S between the back door 13 and the vehicle body 12. However, since the curled portion 17a has an urging force like a spring which is an elastic body, the cord of the curled portion 17a is always applied with a force in the direction of being pulled back to the concave portion 12b side. Does not occur.

In the wiring structure of the present invention, in addition to the above embodiment, as shown in FIG. 6A, a recess 13b 'having a size substantially equal to the recess 12b is provided on the door 13' side. Alternatively, the curl cord 17 may be accommodated. Also, as shown in FIG. 6B, the curl cord 17 may be accommodated by providing recesses 12b "and 13b" on both the vehicle body 12 "side and the door 13" side.

[0024]

As is clear from the above description, the adoption of the arrangement structure of the present invention for the double door of the luggage compartment of the automobile eliminates the necessity of the conventional grommet mounted outside the vehicle.
The work of inserting the wire harness into the conventional grommet and the work of fixing the grommet to the vehicle body or the like by using screws can be eliminated. On the other hand, in the present invention, since the curl cord is attached by fitting the grommet integrated with the curl cord into the through-hole, the labor and time required for the attaching operation can be greatly reduced. Since the grommet formed integrally with the curl cord is small in size and simple in shape, the cost of the mold and the like can be reduced as compared with the conventional grommet mold.

Further, since the curl cord is not exposed to the outside when the door is closed, it does not hinder the external design of the vehicle body,
It is unlikely that a problem such as waterproofing occurs, and it is possible to prevent disconnection or the like due to being caught by an obstacle or the like during traveling.
In addition, when opening the door and loading / unloading luggage,
Since the curl cord is located along the door, the curl cord does not protrude toward the luggage compartment, so that the unloading operation can be performed without paying particular attention to the curl cord.

[Brief description of the drawings]

FIG. 1 is a wiring structure of the present invention, wherein (A) is a perspective view of a wiring structure extending over a vehicle body and a door, and (B) is an enlarged perspective view of a main part of (A).

FIG. 2 is a schematic view showing a state in which a curl cord is attached.

3A and 3B show a wiring structure when the door is closed, wherein FIG. 3A is a cross-sectional perspective view of a main part, and FIG. 3B is a cross-sectional view taken along line AA of FIG.

FIG. 4 is a schematic view showing a modified example of a place where a through hole is arranged.

FIG. 5 shows a wiring structure when the door is opened.
It is a schematic perspective view at the time of opening 180 degrees, (B) at the time of opening 180 degrees, and (C) at the time of opening 270 degrees.

FIG. 6A is a cross-sectional view showing a modification of the wiring structure;
(B) is sectional drawing which shows another modification.

FIGS. 7A, 7B, and 7C are schematic diagrams showing a conventional wiring structure.

FIG. 8 is a schematic diagram showing a rotationally twisted state of a conventional grommet.

FIGS. 9A, 9B, and 9C are schematic perspective views showing an open state of a door in a conventional wiring structure.

[Explanation of symbols]

 2, 12 Body 3, 13 Door 4, 14 Door hinge 12b Recess 12c, 13c Through hole 17 Curl cord 17a Curl 18-1, 18-2 Connector 19-1, 19-2 Grommet

Claims (3)

[Claims] 1. A wiring structure from a vehicle body to a double door which is rotatably attached to a rear end of a vehicle body of an automobile and opens and closes a rear luggage compartment. The part exposed to the outside between the car body and the door is a curl cord,
And, while attaching the grommets at positions near both ends of the curl cord, a concave portion is provided in one or both of a rear end surface of the vehicle body and a portion facing the rear end surface of the door,
A through hole is formed in the inner surface of the concave portion on one side and a surface facing the concave portion, and one end of the grommet is attached to the through hole formed in the vehicle body, and the curled portion of the curl cord is pulled out. The grommet on the other end of the cord is attached to a through hole formed on the door side to wire an electric wire inside the door, and the curl cord is housed in the recess when the door is closed. Wiring structure to double doors in car luggage compartment. 2. The wiring structure for a double door of a vehicle according to claim 1, wherein the through hole formed on the vehicle body side and the through hole formed on the door side are vertically different in position. 3. The wiring structure to a double door of a vehicle luggage compartment according to claim 1, wherein the door is rotated by 270 degrees with respect to the vehicle body.