JPH09300972A - Rear door structure for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rear door structure for a vehicle that can improve appearance and reduce cost by making a spoiler clamping bolt invisible by a stopper rubber and dispensing with a stopper rubber fitting hole and can perform step difference adjustment to another panel making use of a thread part of the clamping bolt. SOLUTION: In this rear door structure, a center spoiler 7 provided on the outer surface of a rear door body 6 is clamp-fitted on the interior face side of the rear door body 6. In this case, a tip part of a clamping bolt 8 for fixing the center spoiler 7 is screwed into cap-like stopper rubber so as to cover the tip part of the clamping body 8 with the cap-like stopper rubber 13.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle back door structure.

[0002]

2. Description of the Related Art Conventionally, in the rear part of a vehicle body of a four-wheeled vehicle,
A back door that opens and closes an opening at the rear of the vehicle body is provided. As shown in FIG. 4, the back door includes a back door body 5 including an inner panel 51 and an outer panel 52.
3, the inner panel 51 is provided with a stopper rubber 54 for adjusting a step between the back door body 53 and another panel. Therefore, the inner panel 51
A single fitting hole 55 for attaching the stopper rubber is formed in a part of the above, and the stopper rubber 54 is screwed into the fitting hole 55.

On the other hand, a center spoiler (rectifying plate) 56 extending in the vehicle width direction is attached to the outer surface of the back door main body 53, and the center spoiler 56 is attached.
The vehicle is pressed against the road surface by utilizing the air flow at high speed. Therefore, on the inner panel 51 and the outer panel 52 of the back door body 53,
The mounting holes 57 and 58 are bored respectively corresponding to the left and right ends of the center spoiler 56, and fastening bolts 59 are embedded in the left and right ends of the center spoiler 56. Then, the center spoiler 56 has the tightening bolt 5
It is fixed to the back door body 53 by inserting 9 into the mounting hole 57, screwing it into the nut 60 and tightening.

[0004]

In the conventional backdoor structure described above, when the center spoiler 56 is attached to the backdoor body 53, the tightening bolts 59 at the left and right ends of the center spoiler 56 are attached. Since the tip end of the bulge protrudes when the back door is opened, the external appearance is impaired as seen from the outside, and something may be caught on the tip end of the tightening bolt 59. Further, in the conventional back door structure, since it is necessary to separately provide the fitting hole 55 for attaching the stopper rubber, extra die cost and processing cost at the time of molding the inner panel 51 of the back door main body 53, resulting in high cost. Was the cause of.

The present invention has been made in view of such circumstances, and an object thereof is to prevent the tightening bolt of the spoiler from being seen by the stopper rubber and to eliminate the need for a hole for attaching the stopper rubber. An object of the present invention is to provide a vehicle back door structure that can improve the cost and reduce the cost, and that can adjust the level difference with another panel by using the screw portion of the tightening bolt.

[0006]

In order to solve the problems of the above-mentioned prior art, in the present invention, a vehicle in which a spoiler provided on the outer surface of a back door body is tightened and mounted on the indoor surface side of the back door body. In the back door structure, the stopper rubber is screwed into the tip of the tightening bolt for fixing the spoiler, and the tip of the tightening bolt is covered with the stopper rubber.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on illustrated embodiments.

1 to 3 show an embodiment of a vehicle back door structure according to the present invention. In the figure, reference numeral 1 is a four-wheeled vehicle to which the back door structure of the present embodiment is applied, and a vehicle body rear portion 2 of the vehicle 1 is provided with a back door 3 for opening and closing an opening at the rear of the vehicle body. The back door 3 includes a back door body 6 configured by joining ends of an inner panel 4 and an outer panel 5 to each other, and an outer surface of the back door body 6 extends in the vehicle width direction. An extending center spoiler (rectifying plate) 7 is attached. The center spoiler 7 is attached by being tightened on the indoor surface side of the back door body 6, is a blow-molded thermoplastics product, and has an upper surface portion 7a in a substantially horizontal state in order to use an air flow at a high speed. The rear door body 6 is arranged so as to project outward from the vehicle body.

Further, as shown in FIG. 2, integrally formed protrusions 7b are provided on the back surfaces of the left and right ends of the center spoiler 7, respectively. The heads 8a of the tightening bolts 8 inserted during blow molding are embedded in these protrusions 7b, and the male screw parts 8 of the tightening bolts 8 are embedded.
The b is arranged so as to project outward from the back surface of the center spoiler 7 over a predetermined length and is screwed into the nut 9.

On the other hand, the inner panel 4 and the outer panel 5 of the back door body 6 are respectively provided with an inner mounting hole 10 and an outer mounting hole 11 corresponding to the protrusions 7b of the center spoiler 7. Inner mounting hole 1
No. 0 has a spiral shape of a size capable of inserting the male screw portion 8b of the tightening bolt 8 and capable of screwing the cylindrical stopper rubber 12 similar to the conventional case when the center spoiler 7 is not attached. Has been formed. Further, the outer mounting hole 11 can be inserted with the projection 7 b of the center spoiler 7 and is formed larger than the inner mounting hole 10. The cylindrical stopper rubber 1
As shown in FIG. 3, a spiral slit 12a serving as a screw portion is formed on the outer peripheral surface of the inner peripheral surface 2 of the inner peripheral surface of the inner mounting hole 10, and the peripheral edge portion of the inner mounting hole 10 is engaged with the slit 12a.

A cap-shaped stopper rubber 13 having large and small diameters is screwed into the tip of the male screw portion 8b of the tightening bolt 8, and the cap-shaped stopper rubber 13 causes the tightening bolt 8 to travel. The tip and the nut 9 are covered. For this reason, inside the cap-shaped stopper rubber 13, large and small diameter holes 14, 1 communicating with each other are formed.
5 is formed along the axial direction of the tightening bolt 8, and the nut 9 is housed in the large diameter hole 14. Moreover, in the part facing the large diameter hole 14 side,
An insert washer 16 for preventing stopper rubber deformation is embedded.

On the inner peripheral surface of the small-diameter portion hole 15, a female screw portion 15a to be screwed with the male screw portion 8b of the tightening bolt 8 is formed over a predetermined length. Therefore, when the cap-shaped stopper rubber 13 is tightened or loosened via the female screw portion 15a and rotated in the arrow a direction in FIG. 2, it moves in the arrow b direction which is the axial direction of the tightening bolt 8. Is ready to go.

A seal rubber 17 is provided between the center spoiler 7 and the outer panel 5 of the back door body 6 to seal the gap between the two members. Further, a spacer ring 18 that secures a gap between both members is interposed between the protrusion 7 b of the center spoiler 7 and the inner panel 4 of the back door body 6. Furthermore, the back door body 6
A washer 19 having a U-shaped cross section is disposed between the inner panel 4 and the nut 9 to prevent deformation of the peripheral edge of the inner mounting hole 10.

In the structure of the back door 3 in the present embodiment, in order to mount the center spoiler 7 on the back door body 6, first, the center spoiler 7 is lifted while the tightening bolt 8 is directed toward the back door body 6. Then, the male screw portion 8b of the tightening bolt 8 is inserted into the mounting holes 11 and 10 of the outer panel 5 and the inner panel 4, and the nut 9 is screwed from the indoor side to tighten the center spoiler 7 to the back door body 6. Fix it.

Then, when the female screw portion 15a of the cap-shaped stopper rubber 13 is screwed into the tip of the male screw portion 8b of the tightening bolt 8 which has traveled from the nut 9, the tightening bolt 8
The cap-shaped stopper rubber 13 is attached to the tightening bolt 8 in a state where the vicinity of the tip end of the cap is covered (see FIG. 2). In addition, in the case of a vehicle having a specification in which the center spoiler 7 is not attached, the mounting hole 10 is opened only in a part of the inner panel 4 of the back door body 6, and the cylindrical stopper rubber 12 is provided in the mounting hole 10 through the slit 12a. By directly screwing in, the cylindrical stopper rubber 12 is attached to the inner panel 4 (see FIG. 3).

In the back door structure according to the present embodiment, the cap-shaped stopper rubber 13 is screwed and attached to the tip of the male screw portion 8b of the tightening bolt 8 that has traveled from the nut 9 to attach the cap-shaped stopper. Since the rubber 13 covers the vicinity of the tip of the tightening bolt 8, the tip of the tightening bolt 8 becomes invisible even when the back door 3 is opened, and the appearance is improved. Further, the cap-shaped stopper rubber 13 of the present embodiment can be moved in the axial direction by tightening or loosening the female screw portion 15a with respect to the male screw portion 8b of the tightening bolt 8. It is possible to easily adjust the level difference with other panels. Further, even in the case of the vehicle without the center spoiler 7, the cylindrical stopper rubber 12 can have the same step adjusting function as the cap-shaped stopper rubber 13 as in the vehicle 1 with the center spoiler 7 attached.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications and changes can be made based on the technical idea of the present invention. is there.

[0018]

As described above, in the backdoor structure for a vehicle according to the present invention, the spoiler provided on the outer surface of the backdoor body is attached by tightening it on the inner surface side of the backdoor body. The stopper rubber is screwed into the tip of the tightening bolt that secures the, and since the stopper rubber covers the end of the tightening bolt, the end of the tightening bolt cannot be seen even when the back door is opened. The appearance can be improved in comparison. Further, in the back door structure of the present invention, the step difference between the back door body and the other panel can be easily adjusted by screwing or loosening the stopper rubber on the threaded portion of the tightening bolt. Moreover, according to the back door structure of the present invention, it is not necessary to separately provide a hole for attaching the stopper rubber even in a vehicle to which the spoiler is installed, so that the mold cost and the processing cost at the time of molding the inner panel of the back door body can be reduced. Therefore, the cost can be reduced.

[Brief description of drawings]

FIG. 1 is a perspective view showing a vehicle body rear portion of an automobile to which a back door structure according to an embodiment of the present invention is applied.

FIG. 2 is a sectional view taken along line AA in FIG.

FIG. 3 is a cross-sectional view taken along the line AA in FIG. 1 when a center spoiler is not provided.

FIG. 4 is a cross-sectional view showing the vicinity of a mounting portion of a center spoiler in a conventional back door structure.

[Explanation of symbols]

 1 Four-wheeled vehicle 3 Back door 4 Inner panel 5 Outer panel 6 Back door body 7 Center spoiler 8 Tightening bolt 8b Male screw part 9 Nut 10 Inner mounting hole 11 Outer mounting hole 13 Cap-shaped stopper rubber 14 Large diameter hole 15 Small diameter hole 15a Female thread part

Claims (1)

[Claims] 1. In a backdoor structure of a vehicle in which a spoiler provided on an outer surface of a backdoor body is tightened and mounted on an inner surface side of the backdoor body, a stopper rubber is attached to a tip end portion of a tightening bolt for fixing the spoiler. Screwed in,
A back door structure for a vehicle, characterized in that the stopper rubber covers the tip of the tightening bolt.