JP7060911B2 - Vehicle door - Google Patents

Description

The present invention relates to a vehicle door provided with an inner panel made of resin and used as a back door.

As a back door of an automobile, there is one made of resin (eg, Patent Documents 1 and 2). The resin back door typically includes a resin inner panel, an outer panel, and a wind panel. One side of the inner panel is arranged on the vehicle interior side, the other surface is arranged on the outside of the vehicle, and an outer panel and a wind panel are attached (FIG. 2 of Patent Document 1).

The inner panel is a frame plate-like member having an opening for a window provided near the upper side of the vehicle (FIG. 2 of Patent Document 1 and FIG. 1 of Patent Document 2). FIG. 4 shows an example of the inner panel 9. FIG. 4 is a plan view of the inner panel 9 as viewed from the outside of the vehicle. The inner panel 9 has a main body 90 provided with an opening 9w for a window, a tubular portion 91 projecting rearward from the peripheral edge of the opening 9w, and a tubular portion 91 from the peripheral edge on the vehicle rear side of the tubular portion 91. A shelf portion 92 (inward-facing flange portion in Patent Documents 1 and 2) extending toward the inside of the portion 91 is provided. An outer panel (not shown) is attached to the upper frame 9u and the lower plate portion 9d of the main body 90, and a wind panel is attached to the vehicle rear side surface (mounting surface 920, FIG. 5) of the shelf portion 92 to form an opening. 9w is covered with a wind panel (Patent Document 1). Patent Document 2 discloses that ribs 94 are provided at the corners of the main body 90 and the tubular portion 91 to increase the rigidity.

Note that FIG. 4 simplifies the main body 90 and mainly shows only the rib 94 provided near the opening 9w, the through hole 9h described later, and the lower right corner of the opening 9w. Hatching is attached to the through hole 9h for easy understanding. Further, in FIG. 4, the vertical direction of the paper surface is the vertical direction of the vehicle, the horizontal direction of the paper surface is the vehicle width direction, the upper side of the paper surface is the upper side of the vehicle (Up), and the lower side of the paper surface is the lower side of the vehicle (Lwr). Further, in FIG. 4, in the rectangular opening 9w, a broken line circle is attached near one of the corners below the vehicle (the corner at the lower right of the paper surface), and the inside of the broken line circle is shown in FIG. Enlarged and shown. The matters relating to FIG. 4 described in this paragraph are the same as those in FIG. 1, which will be described later.

Japanese Unexamined Patent Publication No. 2012-03653 Japanese Unexamined Patent Publication No. 2017-132347

When water such as rainwater infiltrates into the back door, water may infiltrate into the vehicle interior through the inner panel.

Here, the main body 90 of the inner panel 9 is provided with a plurality of through holes 9h that are opened on the vehicle interior side and the vehicle outer side. For example, in the lower plate portion 9d located below the vehicle in the main body portion 90, a plurality of through holes 9h may be provided for the purpose of mounting a wiper motor, inserting various wirings, reducing the weight, and the like. In a back door provided with such a through hole 9h, water such as rainwater may enter the back door from above the back door, for example, in a flip-up type (vertical opening type) back door, from a mounting location of a hinge member or the like. be. As virtually shown by the two-dot chain line in FIG. 5, when the infiltrated water falls on the outer peripheral surface 910 of the tubular portion 91, it flows along the outer peripheral surface 910 toward the lower plate portion 9d side. When the water reaches the region below the vehicle on the outer peripheral surface 910 of the tubular portion 91, it falls below the vehicle due to its own weight. Since the lower plate portion 9d is located below the vehicle lower region of the tubular portion 91, the dropped water may leak into the vehicle interior through the through hole 9h of the lower plate portion 9d.

In order to prevent water leakage into the vehicle interior as described above, it is conceivable to provide an eaves above the through hole 9h, for example. However, the installation of the eaves causes an increase in the weight of the inner panel 9, and it is difficult to obtain the effect of providing the through hole 9h for weight reduction. In addition, it is necessary to design a mold for molding the eaves, which leads to an increase in manufacturing cost. Alternatively, it is conceivable to provide a through hole 9h in the lower plate portion 9d where the water does not fall. However, it is very difficult to predict the flow of water along the outer peripheral surface 910 of the tubular portion 91 toward the lower plate portion 9d side. Further, the area where the through hole 9h in the lower plate portion 9d can be designed becomes narrow, and the degree of freedom in design is also reduced.

Therefore, one of the objects of the present invention is to provide a vehicle door capable of preventing water that has entered the back door from entering the vehicle interior through the inner panel.

The vehicle door according to one aspect of the present invention is
A vehicle door that has an inner panel made of resin and is used as a back door.
The inner panel is
The main body with an opening for the window and
A cylindrical portion protruding rearward of the vehicle from the peripheral edge of the opening,
A shelf portion extending from the peripheral edge of the tubular portion on the rear side of the vehicle toward the inside of the tubular portion and having a mounting surface on which a window member is mounted.
It is provided with ribs provided at the corners of the main body and the tubular portion.
The rib includes an extending portion extending from the outer peripheral surface of the tubular portion to at least a part of the mounting surface of the shelf portion.

The vehicle door is provided with ribs provided at the corners of the main body and the tubular portion of the inner panel, including an extending portion from the outer peripheral surface of the tubular portion to the mounting surface of the shelf portion. The inner panel 9 shown in FIG. 5 described above has a region continuous in the circumferential direction of the outer peripheral surface 910 of the tubular portion 91 (a region including the gap g described later), whereas the rib having the extended portion is a cylinder. It can be said that the outer peripheral surface of the shaped portion is provided so as to divide it in the circumferential direction. Therefore, even if water such as rainwater infiltrates into the vehicle door and flows along the outer peripheral surface of the tubular portion, the flow of the water can be blocked by hitting the rib having the extended portion. Further, the flow direction of the water can be changed from the direction along the outer peripheral surface of the tubular portion to the direction along the surface of the rib. Therefore, even if the main body of the inner panel is provided with a through hole that opens on the vehicle interior side, it is easy to set the water drop point at a position away from the through hole, and it is possible to make it difficult for water to fall into the through hole. Therefore, the vehicle door described above can prevent water that has entered the back door from entering the vehicle interior through the inner panel.

In the above-mentioned vehicle door, the increase in the weight of the inner panel due to the provision of the extension portion is small as compared with the above-mentioned eaves portion, and it is easy to obtain the weight reduction effect by forming the through hole. As described above, it is possible to prevent water that has traveled through the outer peripheral surface of the tubular portion from falling into the through hole, so that it is easy to secure a large area where the through hole can be formed in the inner panel, and the degree of freedom in designing the through hole is large. From this, it is easy to obtain the weight reduction effect by forming the through hole. Further, since the extended portion can be easily formed by changing the shape of the rib, it is easy to change the mold and the like, and it is possible to reduce the increase in manufacturing cost due to the provision of the extended portion.

It is a top view which shows the outline of the vehicle door of Embodiment 1. FIG. The inner panel shown in FIG. 1 is a partial perspective view showing the inside of the broken line circle of FIG. 1 in an enlarged manner. FIG. 3 is a partial cross-sectional view of the vehicle door of the first embodiment, which is cut along the (III)-(III) cutting line shown in FIG. It is a top view which shows the outline of the conventional resin inner panel. The resin inner panel shown in FIG. 4 is a partial perspective view showing the inside of the broken line circle of FIG. 4 in an enlarged manner.

Hereinafter, the vehicle door of the present invention will be specifically described with reference to the drawings. In the figure, the same reference numerals indicate the same names.

[Embodiment 1]
The vehicle door D of the first embodiment will be described with reference to FIGS. 1 to 3.
FIG. 1 is a plan view of the vehicle door D as viewed from the outside of the vehicle, the outer panel 3 and the window member 4 are virtually shown by a two-dot chain line, and only the inner panel 1 is shown by a solid line. In the state shown in FIG. 1, the surface of the inner panel 1 to which the outer panel 3 and the window member 4 are attached, that is, the surface opposite to the vehicle interior is visible.
In FIG. 1, the main body 10 of the inner panel 1 is shown in a simplified manner, and the inside of the broken line circle attached to the inner panel 1 is enlarged and shown in FIG. 2 (see the above-mentioned matters relating to FIG. 4).
FIG. 3 is a partial cross-sectional view of the vehicle door D, showing a state in which the vicinity of the extending portion 22 of the rib 2a provided on the inner panel 1 is cut by a plane parallel to the vehicle front-rear direction.
In FIG. 3, the left-right direction of the paper is the vehicle front-rear direction, the left side of the paper is the rear of the vehicle (Rr), and the right side of the paper is the front of the vehicle (Fr).

<overview>
The vehicle door D of the first embodiment is used for a back door that opens and closes an opening at the rear of the vehicle body of the automobile, and includes an inner panel 1 made of resin. Typically, the vehicle door D is attached so as to cover the inner panel 1 provided with the opening 1w for the window, the outer panel 3 attached to the outer surface of the inner panel 1 and the opening 1w. It is provided with a window member 4. The vehicle door D of this example is a flip-up door, and is rotatably attached to the vicinity of the opening at the rear of the vehicle body by a hinge member (not shown) so as to be rotatable in the vertical direction of the vehicle. A lock mechanism (not shown) is provided below the vehicle door D, and is locked by a striker (not shown) provided near the opening at the rear of the vehicle body to close the opening at the rear of the vehicle body. maintain.

The inner panel 1 provided in the vehicle door D of the first embodiment includes a rib 2 near the window opening 1w. In particular, the rib 2a is formed so that water that has entered the vehicle door D can be prevented from leaking into the vehicle interior through a through hole 1h (described later) provided below the vehicle of the inner panel 1. Since the basic configuration of the vehicle door D can refer to a known configuration, the outer panel 3 and the window member 4 will be briefly described below, and the inner panel 1 will be described in detail.

<Outer panel>
The outer panel 3 of this example includes two vertically divided panels, an upper panel 3u and a lower panel 3d. The upper panel 3u is a strip-shaped member mainly attached so as to cover the upper region of the inner panel 1 (upper frame 1u described later). The lower panel 3d is a plate-shaped member mainly attached so as to cover the lower region of the inner panel 1 (lower plate portion 1d described later). The outer panel 3 may be an integrally molded member in addition to the one provided with a plurality of divided members as in this example. The outer panel 3 of this example is made of resin.

<Wind member>
The window member 4 of this example is a plate attached so as to cover the opening 1w of the inner panel 1 and a region in the vicinity thereof, here, from one side frame 1s (described later), through the opening 1w, and over the other side frame 1s. It is a member (wind panel). A transparent area forming a rear window is provided at a portion covering the opening 1w. Although the window member 4 of this example is made of resin, it may include a glass portion. Since the inner panel 1, the outer panel 3, and the window member 4 are all made of resin, the vehicle door D is lightweight.

<Inner panel>
The inner panel 1 has a main body portion 10 provided with an opening 1w for a window, a tubular portion 11 projecting rearward from the peripheral edge of the opening 1w, and a tubular portion 11 from the peripheral edge on the rear side of the vehicle in the tubular portion 11. A resin molded body integrally molded with a shelf portion 12 extending toward the inside of the portion 11 (see also FIG. 2). The shelf portion 12 includes a mounting surface 120 (FIG. 2) to which the window member 4 is mounted.

The opening 1w of this example is a horizontally long rectangular shape having a long side in the vehicle width direction. The main body portion 10 of this example is a frame plate-shaped member in which the horizontally long opening 1w is provided near the upper side of the vehicle. The main body portion 10 includes an upper frame 1u arranged above the peripheral edge of the opening 1w, a lower plate portion 1d arranged below the peripheral edge of the opening 1w, and an upper frame 1u and a lower plate portion 1d. It is provided with side frames 1s and 1s for connecting to and.

In addition to the opening 1w, the main body 10 is provided with a plurality of through holes 1h (see the hatched area in FIG. 1) penetrating the front and back thereof. For example, the upper frame 1u is provided with a mounting hole 15 or the like to which the above-mentioned hinge member is mounted, and the lower plate portion 1d is provided with a through hole 1h for the purpose of mounting a wiper motor, inserting wiring, reducing the weight, and the like. Has been done. When the vehicle door D is closed, each through hole 1h opens to the vehicle interior side and the vehicle outside.

A window member 4 is attached to the opening 1w of the main body 10 to form a rear window of the vehicle door D. The inner panel 1 of this example includes a cylindrical portion 11 and a shelf portion 12 that serve as a mounting base for the window member 4. In this example, the lower panel 3d of the outer panel 3 is also attached to this mounting pedestal (FIG. 3).

The tubular portion 11 of this example is a relatively short tubular body protruding from the peripheral edge of the opening 1w to the rear of the vehicle, and the opening shape is a horizontally long rectangular shape along the peripheral edge shape of the opening 1w. The height of protrusion of the tubular portion 11 from the main body portion 10 can be appropriately selected.

The shelf portion 12 is an annular plate body extending from the peripheral edge of the tubular portion 11 on the rear side of the vehicle toward the inside of the tubular portion 11. The shelf portion 12 is continuously provided over the entire circumference of the tubular portion 11 in the circumferential direction, and is provided in a so-called inward flange shape. The shelf portion 12 of this example is a horizontally long rectangular ring along the opening shape of the tubular portion 11. Further, the shelf portion 12 of this example is provided so as to be substantially orthogonal to the outer peripheral surface 110 (FIG. 2) of the tubular portion 11 and substantially parallel to the virtual plane of the opening 1w (FIG. 3). The surface on the rear side of the vehicle in the annular shelf portion 12 forms the mounting surface 120. The width of the mounting surface 120 can be appropriately selected as long as the window member 4 is appropriately mounted and the transparent region of the rear window is not excessively reduced by the shelf portion 12. The width of the mounting surface 120 here is the extending length from the cylindrical portion 11 of the shelf portion 12 toward the inside of the tubular portion 11.

The inner panel 1 of this example further includes a spacer 13 that projects toward the rear of the vehicle from the opening edge of the shelf portion 12. As shown in FIG. 3, the spacer 13 is a relatively short cylinder for securing a predetermined space between the mounting surface 120 of the shelf portion 12 and the window member 4. In this example, a part of the window member 4 (region on the peripheral edge side) and a region on the upper edge side of the lower panel 3d of the outer panel 3 are arranged in the space, and between the inner panel 1 and the lower panel 3d. Is filled with the adhesive 30, and the adhesive 31 is filled between the lower panel 3d and the window member 4. The height of the spacer 13 protruding from the shelf 12 may be selected so as to secure a desired space. In the inner panel 1 of this example, the region on the upper end side of the lower panel 3d is arranged on the mounting surface 120 of the shelf portion 12 and joined with the adhesive 30, and then the region on the upper end side of the mounting surface 120 and the lower panel 3d. The window member 4 is arranged so as to cover and, and the lower panel 3d and the window member 4 are joined with an adhesive 31. For the joining structure of the inner panel 1, the outer panel 3, and the window member 4 using the spacer 13, known configurations (eg, Patent Document 1 and the like) can be referred to, and details are omitted.

Further, the inner panel 1 includes ribs 2 provided at the corners of the main body portion 10 and the tubular portion 11. The inner panel 1 of this example includes a plurality of ribs 2 spaced apart from each other in the circumferential direction of the tubular portion 11. In FIGS. 1 and 2, among the plurality of ribs 2, of the two corners below the vehicle in the horizontally long rectangular tubular portion 11, the ribs 2 are provided near one of the corners (lower right side of the paper in FIG. 1). The rib 2 to be formed is illustrated. Further, in FIG. 1, the rib 2 is simplified and shown in a rod shape.

The rib 2 is provided for the purpose of mechanically reinforcing the mounting pedestal of the window member 4, and fills the corner portion formed by the outer surface of the vehicle body of the main body 10 and the outer peripheral surface 110 of the cylindrical portion 11. Provided (see also Figure 3). Such a rib 2 has a connecting edge between the main body 10 and the outer surface of the vehicle (hereinafter referred to as a connecting edge with the main body 10) and a connecting edge with the outer peripheral surface 110 of the cylindrical portion 11 (hereinafter referred to as a cylinder). It is provided with a connection edge with the shape portion 11). The length of each connection edge can be selected as appropriate. For example, the length of the connection edge with the tubular portion 11 may be equal to or less than the above-mentioned protruding height of the tubular portion 11. For example, as shown in the rib 2 on the right side of the paper in FIG. 2, the tip of the connection edge (rear end of the vehicle) with the tubular portion 11 does not reach the mounting surface 120 of the shelf portion 12 and does not protrude from the mounting surface 120. Can be mentioned. So to speak, the mounting surface 120 is located behind the vehicle with respect to the rear end of the rib 2. With such a rib 2, a gap g is provided on the outer peripheral surface 110 of the tubular portion 11 between the peripheral edge of the shelf portion 12 (mounting surface 120) and the vehicle rear end of the rib 2. The portion where the rib 2 is formed on the outer peripheral surface 110 of the tubular portion 11 is divided in the circumferential direction of the outer peripheral surface 110, but the portion near the peripheral edge of the shelf portion 12 is continuous in the circumferential direction of the outer peripheral surface 110 due to the gap g. .. The tubular portion 91 of the inner panel 9 shown in FIG. 5 described above is also provided with this gap g, and has a region continuous in the circumferential direction of the outer peripheral surface 910.

Except for the rib 2a described later, the shape, size, number, arrangement position and the like of the other ribs 2 can be appropriately selected.

In particular, in the inner panel 1 of the embodiment, at least one of the ribs 2 has an extending portion 22 extending from the outer peripheral surface 110 of the tubular portion 11 to at least a part of the mounting surface 120 of the shelf portion 12. including. The inner panel 1 of this example is provided with ribs 2a at two corners arranged below the vehicle in the horizontally long rectangular tubular portion 11 and the shelf portion 12 described above (only the right side of the paper is shown in FIG. 1). .. Further, in the inner panel 1 of this example, among the plurality of through holes 1h provided in the lower plate portion 1d of the main body portion 10, the outside of the through hole 16 located on the outermost side in the vehicle width direction (outside the vehicle width direction). In FIG. 1, the rib 2a is provided on the right side of the through hole 16.

As shown in FIG. 2, the rib 2a is connected to three surfaces of the vehicle outer surface of the main body portion 10, the outer peripheral surface 110 of the tubular portion 11, and the mounting surface 120 of the shelf portion 12 (see also FIG. 3). Therefore, the rib 2a includes a connection edge with the mounting surface 120 in addition to the connection edge with the main body portion 10 and the connection edge with the cylindrical portion 11 described above.

The rib 2a of this example is a flat plate material having a uniform thickness, and has a rib body 20 having a connecting edge with the main body 10 and a connecting edge with the tubular portion 11, and the mounting surface 120 described above. It is provided with an extension portion 22 having a connecting edge. The shape and size of the rib body 20 can be appropriately selected.

As shown in FIG. 3, the extension portion 22 is projected from the rear Rr of the vehicle with respect to the mounting surface 120 of the shelf portion 12, and is from the peripheral edge (outer edge) of the shelf portion 12 on the tubular portion 11 side to the spacer 13 side. It extends to the mounting surface 120 toward the peripheral edge (inner edge) of the. In this example, the tip of the extending portion 22 is located at an intermediate position from the outer edge toward the inner edge on the mounting surface 120, and does not reach the inner edge. Therefore, the extension length of the extension portion 22 from the outer edge, here, the length along the width direction of the mounting surface 120 is shorter than the width of the above-mentioned mounting surface 120, and the weight due to the extension portion 22 is provided. It is easy to reduce the increase in. Further, if the extending portion 22 is shorter than the width of the mounting surface 120, the mounting surface 120 is provided with a gap between the tip of the extending portion 22 and the outer edge thereof. In this example, this gap is used as a coating space for the adhesive 30 for joining the outer panel 3. When the adhesive 30 is applied to the mounting surface 120, the front and back surfaces of the extending portion 22 are covered with the adhesive 30. The extension portion 22 is in a state of being inserted into the adhesive 30. The extension length of the extension portion 22 can be changed as appropriate. For example, the extended length may be substantially equal to the width of the mounting surface 120. In this case, the extension portion 22 is provided from the outer edge to the inner edge.

In this example, the extension portion 22 is erected so as to be substantially orthogonal to the mounting surface 120. The height of protrusion of the extension portion 22 from the mounting surface 120 can be appropriately selected within a range in which the window member 4 can be appropriately mounted. In this example, the extension portion 22 is used as a member that regulates the mounting height of the outer panel 3 with respect to the mounting surface 120. Here, by interposing the extending portion 22 between the mounting surface 120 and the outer panel 3, a gap corresponding to the protruding height of the extending portion 22 is provided between the mounting surface 120 and the outer panel 3. This gap is used as a filling space for the adhesive 30 described above. As a result, the extension portion 22 can set the thickness of the adhesive 30 (equal to the above-mentioned protrusion height) and the mounting height of the outer panel 3. In this case, the protrusion height of the extending portion 22 may be selected within a range in which the protrusion height of the spacer 13 is equal to or less than the protrusion height of the spacer 13 and the adhesive 30 has a predetermined thickness. The smaller the protruding height, the easier it is to reduce the increase in weight due to the provision of the extending portion 22.

The size of the mounting surface 120 in the extending portion 22 along the circumferential direction (hereinafter referred to as the circumferential length) can be appropriately selected, and the shorter the length, the easier it is to reduce the increase in weight due to the extension portion 22. As shown in FIG. 2, the peripheral length of the extending portion 22 of this example is equivalent to the plate thickness of the rib body 20, and is relatively thin. Therefore, it is easy to reduce the increase in weight due to the provision of the extending portion 22, and since the entire rib 2a has a uniform thickness, the manufacturability is also excellent. Even if the circumferential length of the rib 2a is about the thickness of the rib body 20, the outer panel 3 can be supported and the mounting height can be regulated, and the adhesive 30 can be adjusted to a predetermined thickness. Can be formed.

The extending portion 22 of this example has a rectangular parallelepiped shape (rod shape) when viewed from the rear of the vehicle, but can be appropriately changed. For example, the planar shape may be flat. Since the inner panel 1 is a resin molded body, it is easy to form an arbitrary three-dimensional shape, but if it is a rod shape as in this example, it is easy to design a mold, and from this point, the manufacturing cost can be reduced.

<Main actions / effects>
The vehicle door D of the first embodiment includes a rib 2a including an extending portion 22 extending from the outer peripheral surface 110 of the tubular portion 11 to the mounting surface 120 of the shelf portion 12. It can be said that such a rib 2a is provided so as to divide the outer peripheral surface 110 of the tubular portion 11 in the circumferential direction thereof. Therefore, as virtually shown by the two-dot chain line in FIG. 2, even if water such as rainwater infiltrates into the vehicle door D and flows along the outer peripheral surface 110 of the tubular portion 11, it hits the rib 2a. , This flow of water can be blocked. In this example, it can be said that it is possible to prevent water from further flowing from the outside to the inside in the vehicle width direction along the outer peripheral surface 110 of the tubular portion 11. The dammed water typically changes its flow direction along the surface of the rib body 20 and finally falls below the vehicle, but it is easy to limit the falling point to the vicinity of the rib 2a. In the inner panel 1 of this example, since the rib 2a provided with the extending portion 22 is located outside the vehicle width direction from the through hole 16 located on the outermost side in the vehicle width direction, the rib 2a is located outside the vehicle width direction. In addition to being able to block the water on the outside, it is easy to set the drop point of the water at a position away from the through hole 16, particularly at a position farther outside in the vehicle width direction than the through hole 16. So to speak, the water flow path can be limited to the outside of the through hole 16 in the vehicle width direction. Therefore, it is possible to more reliably prevent the water from flowing to the through hole 1h side of the lower plate portion 1d including the through hole 16.

According to the vehicle door D of the first embodiment, even if the main body portion 10 has a through hole 1h that opens to the vehicle interior side, the water transmitted through the outer peripheral surface 110 of the tubular portion 11 is the lower plate portion 1d. It is possible to prevent the vehicle from entering the vehicle interior through the through hole 1h.

In particular, in the vehicle door D of this example, the rib 2a provided with the extending portion 22 is provided near the lowest position in the tubular portion 11 (the above-mentioned lower corner portion of the vehicle). Therefore, as compared with the case where the rib 2a is provided closer to the upper side of the vehicle, it is easy to prevent the water whose flow direction is changed by the rib 2a from going to the through hole 1h side of the lower plate portion 1d again. From this, the vehicle door D of this example can prevent water from entering the vehicle interior through the inner panel 1.

Further, in the vehicle door D of this example, the extension portion 22 is interposed between the mounting surface 120 and the outer panel 3, and the adhesive 30 is provided so as to cover the front and back surfaces of the extension portion 22. The presence of the adhesive 30 can also prevent water that has traveled through the outer peripheral surface 110 of the tubular portion 11 from hitting the rib 2a and then wrapping around to the mounting surface 120 side. As a result, it is easy to prevent the water from going to the through hole 1h side through the mounting surface 120. From this, the vehicle door D of this example can prevent water from entering the vehicle interior through the inner panel 1.

In addition, the vehicle door D of the first embodiment also has the following effects.
(1) Since the rigidity of the rib 2a is increased by the extending portion 22, the reinforcing strength of the mounting pedestal of the outer panel 3 and the window member 4 can be increased by the rib 2a.
(2) The increase in weight due to the provision of the extension portion 22 is smaller than that of the above-mentioned eaves portion, and it is easy to obtain the weight reduction effect by forming the through hole 1h.
(3) Since the rib 2a having the effect of preventing water leakage into the vehicle interior is provided, it is easy to secure a large area where the through hole 1h can be formed in the lower plate portion 1d of the main body portion 10, and the degree of freedom in designing the through hole 1h is increased. big. From this, it is easy to obtain the weight reduction effect by forming the through hole 1h.
(4) Since the extended portion 22 can be easily formed by changing the shape of a part of the rib 2, it is easy to change the mold and the like, and it is easy to reduce the increase in manufacturing cost.
(5) By providing the extension portion 22 so as to protrude from the mounting surface 120, the mounting height of the outer panel 3 and the thickness of the adhesive 30 can be regulated, the vehicle door D can be easily assembled, and the manufacturability is improved. Excellent.

The present invention is not limited to the configuration of the first embodiment described above, and can be appropriately modified.
(1) For example, a plurality of ribs 2a having an extension portion 22 are provided. Each rib 2a may be provided below the vehicle with respect to the tubular portion 11. For example, another rib 2a may be provided next to the rib 2a shown in FIG. By providing the plurality of ribs 2a, it is possible to more reliably prevent water from entering the vehicle interior through the inner panel 1.
(2) For example, instead of stacking the outer panel 3 (lower panel 3d) and the window member 4 on the shelf portion 12 of the inner panel 1 in order, the window member 4 may be sandwiched between the inner panel 1 and the outer panel 3. Can be mentioned. Alternatively, only the window member 4 may be arranged on the shelf portion 12 of the inner panel 1, and the outer panel 3 may be joined to the window member 4 at a position deviated from the shelf portion 12.
(3) Applicable to side-opening type and double-door type back doors.

D Vehicle door 1 Inner panel 1w Opening, 1h, 16 Through hole, 1u Upper frame, 1d Lower plate part, 1s Side frame 10 Main body part, 11 Cylindrical part, 12 Shelf part, 13 Spacer, 15 Mounting hole 110 Outer circumference Surface, 120 Mounting surface 2,2a Rib 20 Rib body, 22 Extension 3 Outer panel, 3u Upper panel, 3d Lower panel, 30,31 Adhesive 4 Wind member 9 Inner panel, 9w opening, 9h through hole, 9u upper Frame, 9d lower plate 90 main body, 91 tubular part, 92 shelf part, 94 rib 910 outer peripheral surface, 920 mounting surface g gap

Claims (1)

A vehicle door that has an inner panel made of resin and is used as a back door.
The inner panel is
The main body with an opening for the window and
A cylindrical portion protruding rearward of the vehicle from the peripheral edge of the opening,
A shelf portion extending from the peripheral edge of the tubular portion on the rear side of the vehicle toward the inside of the tubular portion, and a shelf portion.
It is provided with a rib provided at the lower corner of the vehicle among the corners of the main body and the tubular portion .
The shelf has a mounting surface on which the window member is mounted.
The rib is a vehicle door including an extension portion continuously provided from an outer peripheral surface of the tubular portion to at least a part of a mounting surface of the shelf portion.

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