JPH07112780B2 - Automotive backdoor structure - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automobile backdoor structure, and more particularly to an automobile backdoor provided with a stay damper for maintaining an open / closed backdoor in an open state. Regarding the structure.

(Prior Art) A vehicle having a back door is well known in the prior art. For example, Japanese Utility Model Laid-Open No. 60-124719 discloses an example of a vehicle having a back door that opens and closes in the vertical direction. The disclosed structure includes a stay damper that supports the back door from below and maintains the open state when the back door is in the open state. Further, the stay damper is housed along the rear pillar of the automobile between the rear pillar and the frame provided at the peripheral portion of the rear pillar when the back door is closed.

(Problems to be solved) By the way, in this type of vehicle, it has been designed to make the size of the windshield of the back door as large as possible and to project it to the outside of the door frame due to design requirements. Is coming.

However, since a stay damper is interposed between the back door and the rear pillar, if the window glass is configured to project outward, the step between the outer end of the wind glass and the rear pillar becomes large, There is a problem in that the appearance is poor. In order to solve this problem, it is conceivable to make the outer part of the rear pillar higher than the stay damper storage part so that it is as close as possible to the lower surface of the windshield to reduce the above-mentioned step. The following problems occur. In other words, this kind of back door is usually larger toward the bottom, and therefore the rear pillars that make up the inner end of the corresponding opening in the rear of the vehicle are more vertical from the top. It will be inclined inward.

When the opening operation of the back door is performed, the stay damper swings outward and stands up to support the back door.
Therefore, if the outside of the stay damper housing portion of the rear pillar is made higher, it will interfere with the stay damper during the opening operation of the back door.

(Means for Solving the Problem) The present invention is configured in view of the above circumstances and can take a large window glass, and further, the step difference with the rear pillar in the outer peripheral portion of the window glass is reduced to improve the appearance. An object of the present invention is to provide a back door structure for an automobile that can solve the problems and does not hinder the operation of the stay damper.

The present invention provides a back door which is provided at a rear portion of a vehicle and which opens and closes in a vertical direction, and is connected to the back door and a rear pillar. When the back door is open, the back door is supported upward, and when the back door is closed, an inner edge portion of the rear pillar is provided. And a stay damper that is housed between the two along the outer edge of the back door. The stay damper swings outward when the back door opens and stands up while supporting the back door. And a backdoor structure for an automobile, wherein the backdoor includes a frame having a closed cross section at the peripheral edge of the inner surface of the windshield, and the frame covers the stay damper and the ear pillar and forms the outer surface of the body. Is attached.

In the rear structure of an automobile to which the present invention is applied, a back door is opened and closed in the vertical direction, and when the back door is rotated upward to be in an open state, it is supported from below by a stay damper. It is designed to be maintained in that state. The stay damper is arranged between the inner edge of the rear pillar of the automobile and the outer edge of the back door in the closed state of the back door along a direction extending in both directions. In response to the upward rotation, the rear pillar is erected while standing up while rotating with the attachment point of the rear pillar as a fulcrum to support the back door from below. In this case, in this type of support structure, the width of the upper portion of the back door is narrower than that of the lower portion, so that the stay damper slightly swings outward and stands up.

(Effect of the Invention) According to the present invention, the window glass of the back door is as large as possible so that the end face of the back door protrudes outward from the frame of the back door, and an updated back door structure is provided. You can When using such a large window glass, since the stay damper is interposed, the step difference between the outer end portion of the back door and the rear pillar becomes large. This is unfavorable in appearance,
In the present invention, since the garnish is attached to the frame of the back door so as to eliminate this step, this problem in appearance can be solved. Further, in the structure of the present invention, the garnish is attached to the back door side to form a part of the back door as described above, so that the rigidity of the back door can be increased, and as a result, Since the step of the rear pillar is eliminated, the outer side of the rear pillar can be made sufficiently lower than the suede damper storage portion, and therefore, there is no fear of interference with the rear pillar when the stay damper rotates.

(Description of Embodiments) Hereinafter, embodiments of the present invention will be described with reference to the drawings.

Referring to FIG. 1, a rear portion of an automobile 1 to which the present invention is applied is shown. The automobile 1 includes a back door 2 that covers almost the entire rear portion, and the back door 2 opens and closes vertically. It is like this. In the structure of this example, the back door 2 has a trapezoidal shape, and the lower portion is wider than the upper portion. Further, when the back door 2 is opened, a stay damper 3 for supporting the back door 2 in that state is provided.
Has one end rotatably attached to the back door 2 and the other end rotatably attached to the rear pillar 4 of the body. When the back door 2 is in the closed state, the stay damper 4 extends substantially along the direction in which the rear pillar 4 and the frame 5 of the back door 2 extend, as shown by the broken line in the figure, and between the rear pillar 4 and the back door 2. It is stored.
When the back door 2 is lifted and opened, the stay damper 3 is rotated around the attachment points 6 and 7 of the rear pillar 4 and the frame 5 while being extended, and the stay damper 3 is separated from the rear pillar 4 and the frame by an imaginary line in the figure. It will be in the upright position as shown. And in this state, the back door 2
The door 2 is supported by and is kept open.

Referring to FIG. 2, the back door 2 of the present example is provided with a window glass 8 extending over substantially the entire surface of the door 2 on the frame 5, and the window glass 8 is provided at its side portion at the end portion of the frame 5. It extends outward to the extent that A molding 9 is attached to the peripheral edge portion of the window glass 8. Further, the frame 5 is configured to join the inner panel 5a and the outer panel 5b to form a closed cross section. The strip 10 is attached to the panel joint portion of the inner edge portion.

Similarly, the rear pillar 4 is also constructed by joining the inner panel 4a and the outer panel 4a so as to form a closed cross section. The joint portion at the inner edge portion of the rear pillar 4 is provided at the inner end of the rear pillar 4 so as to project upward, and the weather strip 11 is attached to the joint portion. When the back door 2 is in the closed state, the weather strip 11 contacts the inner panel 5a of the frame to block communication between the inside and the outside.

At the lower part of the rear pillar 4, the upper end of the side glass 12 is fixed, and the outlet of the extractor chamber 13 for ventilation inside and outside the vehicle is provided. Further, an extractor chamber grill 14 is attached to the lower portion of the rear pillar 4 so as to cover the outlet of the extractor chamber 13.

Further, in the back door structure of this example, the frame 5 of the back door 2 is provided with the garnish 15 extending from the tip of the window glass 8 so as to cover the outer panel 4b of the rear pillar 4 with the bolt 16. The stay damper 3 includes an outer edge portion of the back door 2 and a rear pillar 4.
It is arranged in the space between the inner edge of the. As shown in FIG. 3, the garnish 15 includes a side panel portion 15a exposed on the surface of the back door 2 and a bolt hole 16a.
Is provided with a mounting portion 15b. Also garnish 1
The ribs 5 are provided on the member 5 so as to be spaced apart from each other in the longitudinal direction, and the ribs 17 are formed with protrusions 18 extending downward as shown in FIG. Seaming wells 19 are attached to the protrusions 18, which come into contact with the outer panel 4b of the rear pillar 4 when the back door 2 is closed. As shown in FIG. 4, the side panel portion 15a extends to the joint between the back door and the roof panel, and is aligned with the tip of the horizontal frame of the bark door 2.

The back door structure of this example is an extremely updated structure having a window glass 8 that almost covers the entire surface of the door, and the step between the back door 2 and the rear pillar 4 is eliminated by the garnish 15, It is possible to provide a good external shape without impairing the sense of unity between the door and the body. In addition, since the good appearance can be obtained by the presence of the garnish 1 in this way, even if the outer portion of the rear pillar 4 is arranged sufficiently lower than the portion where the stay damper 3 is arranged, interference with the stay damper 3 can be avoided. No adverse effect on appearance.

[Brief description of drawings]

1 is an external view showing a rear portion of an automobile to which the present invention is applied, FIG. 2 is a sectional view taken along the line AA of FIG. 1, and FIG.
FIG. 4 is a perspective view of the garnish, and FIG. 4 is a partial cross-sectional view of the upper portion of the back door. 1 ... Car, 2 ... Back door, 3 ... Stay damper, 4 ... Rear pillar, 5 ... Frame, 6,7 ...
Mounting point, 8 ... Wind glass, 9 ... Molding, 10 ... Strip, 11 ... Weather strip, 12
…… Side glass, 13 …… Extractor chamber, 14
…… Extractor grill, 15 …… Garnish, 16…
… Bolts, 17 …… ribs, 18 …… protrusions.

Claims (1)

[Claims] 1. A back door which is provided at a rear portion of a vehicle and which opens and closes in a substantially trapezoidal shape in which a lower portion is wide, and a back door which is connected to the back door and a rear pillar and is open when the back door is open. And a stay damper that is housed between the rear pillar and the outer edge of the back door in a closed state between the two, and the stay damper swings outward when the back door opens. A backdoor structure for an automobile that stands upright and supports a backdoor while the backdoor is provided with a frame having a closed cross section at the peripheral edge of the inner surface of the windshield, and the frame has the above-mentioned structure. A back door structure for an automobile, characterized in that a garnish that covers the stay damper and the rear pillar and constitutes the outer surface of the body is attached.