JP5327114B2 - Vehicle back door structure - Google Patents

Description

  The present invention relates to a vehicle back door structure.

  If rainwater (transport water) passes through the seal portion between the weather strip provided on the body side and the door inner panel of the back door, the rainwater flows into the room. For this reason, for example, in Patent Document 1, a rib projecting downward from the vehicle is provided on the outer edge side of the door inner panel with respect to the seal portion between the door inner panel and the weather strip, and rainwater is drained from the quarter panel before the weather strip. A method of dropping into a groove is disclosed.

Japanese Utility Model Publication No. 6-12143

  However, if it rains continuously for a long time or in a large amount, such as in May rain or shower, rainwater from the upper edge of the back door flows into the side of the back door, gets over the rib, weather strip and door inner There is a possibility of flowing into the room from the panel seal.

  In view of the above fact, an object of the present invention is to provide a vehicle back door structure capable of preventing or suppressing rainwater or the like from entering the vehicle interior.

According to a first aspect of the present invention, a vehicle back door structure is located on a door inner panel constituting a back door that opens and closes an opening that opens toward the rear of the vehicle, and on a peripheral side of the door inner panel, A seal portion that contacts and seals a weather strip provided on the peripheral side of the opening in a state in which the back door is closed, and the seal of the door inner panel than the seal portion that is positioned on the upper edge side of the door inner panel. Furthermore, it is arranged on the outer edge side, extends to the side of the door inner panel along the vehicle width direction, protrudes toward the vehicle lower side and flows along the upper edge side of the door inner panel to the body body side. a first rib for guiding, further the outer edge side of the door inner panel such door inner panel than the seal portion located on the side side, along the vertical direction of the vehicle Is set, perforated with guides the water flowing down along the door inner panel to the main body downward, the vehicle vertical direction upper side, and a second rib which is disposed between the first rib and the sealing portion doing.

  In the vehicle back door structure according to claim 1, the back door that opens and closes the opening that opens toward the rear of the vehicle is provided with a door inner panel, and the opening of the opening is closed when the back door is closed. A weather strip provided on the peripheral side comes into contact with a seal portion located on the peripheral side of the door inner panel to press the weather strip. Thereby, the peripheral part of the opening part of a back door and the peripheral side of a door inner panel are sealed.

  Further, the first rib protrudes downward from the door inner panel to the outer edge side of the weather strip located on the upper edge side of the door inner panel and extends to the side of the door inner panel along the vehicle width direction. Is extended.

  The water flowing along the upper edge side of the door inner panel of the back door is guided to the body main body (rear end portion of the roof panel) side along the first rib. As a result, water flows to the side of the body body through the rear end of the roof panel and drains downward in the vehicle. In other words, water that has entered from the upper edge of the back door can be prevented from flowing to the side of the back door, reducing the amount of water that flows into the side of the back door, and entering the inside of the back door. Do not let it.

Moreover, since the 1st rib is extended to the side side along the vehicle width direction, the water which flows along the upper edge side of the door inner panel of a back door flowed along the extending direction of the 1st rib. Even in this case, since water is guided to the side of the body body through the first rib, it is possible to prevent water that has entered from the upper edge side of the back door from flowing to the side of the back door.
Furthermore, the 2nd rib is extended along the vehicle up-down direction further to the outer edge side of the said door inner panel rather than the seal part located in the side side of a door inner panel. And this 2nd rib guides the water which flows along a door inner panel to the body main body lower side (what is called a quarter panel side). That is, water that has entered from the side of the back door is guided to the lower side of the body body along the second rib, thereby preventing water from entering the inside of the back door.
Further, the upper side of the second rib in the vehicle vertical direction overlaps with the first rib when viewed from the vehicle vertical direction. Thereby, the water that has entered from the upper edge of the back door or the water that has entered from the side of the back door is guided to the body body side by at least one of the first rib and the second rib.

  A vehicle back door structure according to a second aspect of the present invention is the vehicle back door structure according to the first aspect, wherein at least the center side of the first rib swells upward in the vehicle.

  The design surface of the back door is a curved surface along the vehicle vertical direction and the vehicle width direction. For this reason, by allowing at least the center side of the first rib to swell upward in the vehicle, the water that has entered from the upper edge side of the back door is more effectively flowed to the side of the body on the side of the door inner panel. Thus, the vehicle can be drained downward.

  Here, for example, the back door glass is fitted in the central portion of the back door, but the design surface of the back door is a curved surface along the vehicle vertical direction and the vehicle width direction. In many cases, the outer shape of the upper portion of the door glass swells upward in the vehicle. For this reason, by forming the first rib in accordance with the curvature of the outer shape of the vehicle upper portion of the back door glass, when the back door is opened, it does not cause a sense of incongruity with the outer line of the back door glass. Can be.

  A vehicle back door structure according to a third aspect of the present invention is the vehicle back door structure according to the first aspect, wherein at least one guide portion that swells downward in the vehicle is provided at a portion other than both ends of the first rib. One is formed.

  In the vehicle back door structure according to the third aspect of the present invention, at least one guide portion that swells downward in the vehicle is formed in a portion other than both ends of the first rib, so that the vehicle enters from the upper edge of the back door. The rainwater thus produced can be guided to the body body side through the guide section. That is, here, rainwater that has entered from the upper edge of the back door is not transmitted to both end sides of the first rib, so that rainwater does not flow to the side of the back door via the first rib. I have to.

  As described above, the vehicular back door structure according to the first aspect of the present invention has an excellent effect that rain water can be prevented or suppressed from entering the vehicle interior.

  According to the vehicle back door structure of the second aspect of the present invention, when the back door is opened, it has an excellent effect that the aesthetic appearance is not impaired.

  According to the vehicle back door structure according to the third aspect of the present invention, there is an excellent effect that rainwater can be guided to the body main body side inside the side side of the back door.

It is an enlarged back view of the A section of Drawing 5 showing the back door structure for vehicles concerning this embodiment. (A) is the sectional view on the AA line of FIG. 1, FIG. 2 (B) is the sectional view on the BB line of FIG. It is CC sectional view taken on the line of FIG. It is a perspective view which shows the rear part of the vehicle with which the back door structure for vehicles which concerns on this Embodiment was suitable. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view showing a vehicle body body and a back door of a vehicle to which a vehicle back door structure according to an embodiment is applied. It is a back view corresponding to Drawing 1 showing other modifications (1) of the back door structure for vehicles concerning this embodiment. (A) is a back view corresponding to FIG. 1 which shows the other modification (2) of the vehicle back door structure which concerns on this Embodiment, (B) is the DD sectional view taken on the line of (A). is there.

  A vehicle back door structure according to an embodiment of the present invention will be described with reference to FIGS. In the figure, the arrow FR indicates the forward direction in the vehicle longitudinal direction, the arrow UP indicates the upward direction in the vehicle vertical direction, and the arrow OUT indicates the vehicle width direction outside.

  4 shows a rear view of the vehicle 12 to which the vehicle back door structure is applied, and FIG. 5 shows a state in which the back door 16 is removed from the body main body 11. As shown in these drawings, the vehicle 12 is provided with a back door 16 for opening and closing an opening 14 that opens rearward in the vehicle body front-rear direction.

  A hinge portion (not shown) is provided inside the upper end portion 16A of the back door 16, and the opening portion 14 can be opened and closed by rotating the back door 16 around the hinge portion. Further, a substantially rectangular window 18 is provided at the center of the back door 16, and a back door glass 20 is fitted into the window 18.

  Here, FIG. 1 shows an enlarged back view of part A shown in FIG. 5, FIG. 2 (A) shows a cross-sectional view along the line AA of FIG. 1, and FIG. A cross-sectional view taken along line BB in FIG. 1 is shown. FIG. 3 shows a cross-sectional view taken along the line CC of FIG.

  As shown in FIG. 2 (A), the back door 16 includes a resin door outer panel 22 disposed on the vehicle outer side, and a steel plate door inner panel 24 disposed on the vehicle inner side. The peripheral edge of the door outer panel 22 and the peripheral edge of the door inner panel 24 are joined by an adhesive such as mastic to form a closed cross-sectional structure.

  Here, the resin door outer panel 22 is used, but a metal door outer panel 22 such as a steel plate may be used. In this case, the peripheral portion of the door outer panel 22 and the peripheral portion of the door inner panel 24 may be used. Are often joined by hemming.

  On the other hand, the body body 11 is provided with a roof panel 25 in the vehicle front-rear direction at the top of the vehicle. The rear end portion 26 of the roof panel 25 forms a part of the peripheral edge of the opening 14, and a vertical wall portion 26A bent from the vehicle upper surface to the vehicle lower side, and a lower end portion of the vertical wall portion 26A. A lateral wall portion 26B bent from the vehicle rear side to the vehicle rear side, and an inclined wall 26C extending obliquely downward from the vehicle rear end portion of the lateral wall portion 26B are provided.

  A weather strip 28 formed of an elastic material such as rubber is attached to a flange (shown in a simplified manner by a one-dot chain line) provided on the inclined wall 26C, and the back door 16 is closed. The peripheral side of the door inner panel 24 of the back door 16 is pressed against (contacted with) the weather strip 28 and sealed.

  Further, the portion other than the rear end portion 26 of the roof panel 25 at the peripheral portion of the opening 14 of the body main body 11 is a vertical wall portion 26A of the rear end portion 26 of the roof panel 25 as shown in FIG. A vertical wall portion 15A and a horizontal wall portion 15B corresponding to the horizontal wall portion 26B are provided, and the weather strip 28 is attached over the entire periphery on the peripheral side of the opening portion 14 by connecting the horizontal wall portion 15B to the inclined wall 26C. It has been.

  Thus, in a state where the back door 16 is closed, the peripheral side of the door inner panel 24 of the back door 16 is pressed and sealed to the weather strip 28 attached to the opening 14 of the body main body 11. Thereby, the watertightness into the opening part 14 of the back door 16 is ensured.

  Here, the “seal portion” in claim 1 refers to a portion of the door inner panel 24 of the back door 16 that is sealed by being pressed against the weather strip 28, and is a portion indicated by a two-dot chain line S in FIG. Yes, hereinafter referred to as the seal portion S. Although this seal portion S is indicated by a two-dot chain line for convenience, in reality, the door inner panel 24 and the weather strip 28 of the back door 16 are in surface contact, and therefore the seal portion S has a predetermined width. It has a shape.

(Configuration of main parts of vehicle back door structure)
Next, the structure of the main part of the vehicle back door structure according to the present embodiment will be described.

  As shown in FIGS. 1 and 2A, the seal portion S located on the peripheral side of the door inner panel 24 of the back door 16 is in the state where the back door 16 is closed and the opening 14 of the body body 11 is closed. It is sealed by being pressed against a weatherstrip 28 attached to the door, but on the upper edge side of the seal portion S on the upper edge side of the door inner panel 24, it protrudes toward the lower side of the vehicle and extends sideward along the vehicle width direction. Eave ribs (first ribs) 30 are extended to the end. The eaves rib 30 is at least centered so as to bulge upward.

  The eaves rib 30 allows the water that flows along the upper edge side of the door inner panel 24 of the back door 16 (hereinafter referred to as “rain water” to be included in the car wash water in addition to rain water) to the roof. The vehicle is guided to the rear end portion 26 side of the panel 25 (in the direction of arrow D) and flows through the rear end portion 26 of the roof panel 25 to the side of the body body 11 (the drainage groove 15 of the so-called quarter panel 13). It drains downward.

  On the other hand, as shown in FIGS. 1 and 3, side ribs (second ribs) 32 extend along the vehicle vertical direction on the outer edge side of the seal portion S with the weather strip 28 on the side side of the door inner panel 24. Each extended. This side rib 32 guides rainwater that has entered from the side of the door inner panel 24 to the peripheral side of the opening 14 of the body body 11 (the drainage groove 15 of the quarter panel 13) (in the direction of arrow F), toward the inside of the vehicle. Prevent the intrusion.

  Further, the vehicle upper side of the side rib 32 is located between the seal portions S of the eave rib 30 and the weather strip 28, and the vehicle upper side of the eave rib 30 and the side rib 32 is over when seen from the vehicle vertical direction of the back door 16. Wrapping.

(Operation of vehicle back door structure)
Next, the operation of the vehicle back door structure according to this embodiment will be described.

  As shown in FIGS. 1 and 2 (A), the door inner panel 24 at the upper edge side of the back door 16 has a door further than the seal portion S with the weather strip 28 located on the upper edge side of the door inner panel 24. On the outer edge side of the inner panel 24, an eave rib 30 is provided so as to protrude downward in the vehicle and extend to the side side along the vehicle width direction.

  For this reason, when rainwater flowing along the upper edge side of the door inner panel 24 of the back door 16 comes into contact with the root portion of the eave rib 30, it is guided to the front end portion of the eave rib 30 along the protruding direction of the eave rib 30. (Arrow D direction). The rainwater guided to the front end portion of the eaves rib 30 falls to the rear end portion 26 side of the roof panel 25, flows to the side of the body main body 11 through the rear end portion 26 of the roof panel 25, and moves downward in the vehicle. Drained. That is, rainwater that has entered from the upper edge side of the back door 16 can be prevented from flowing to the side of the back door 16.

  On the other hand, depending on the rainwater, there is a thing that flows along the extending direction of the eave rib 30 (in the direction of arrow E) when contacting the root portion of the eave rib 30, but the eave rib 30 has its side along the vehicle width direction. Since it extends to the side, it is guided to the side of the body body 11 through the eaves rib 30. That is, rainwater that has entered from the upper edge side of the back door 16 can be prevented from flowing to the side of the back door 16.

  In this way, in any case, rainwater that has entered from the upper edge side of the back door 16 can be prevented from flowing to the side of the back door 16, so the amount of rain water that flows into the side of the back door 16 is reduced. can do. Thereby, the intrusion of rainwater into the back door 16 can be prevented or suppressed.

  Further, as shown in FIGS. 1 and 5, the eave rib 30 is configured such that at least the center side in the vehicle width direction swells upward in the vehicle. As a result, rainwater that has entered from the upper edge side of the back door 16 flows more effectively to the side of the body body 11 on the side of the door inner panel 24 and is drained downward in the vehicle.

  Here, for example, the back door glass 20 is fitted in the central portion of the back door 16, but the design surface of the back door 16 is a curved surface along the vehicle vertical direction and the vehicle width direction. For this reason, the outer shape of the upper portion of the back door glass 20 often swells upward in the vehicle.

  For this reason, when the back door 16 is opened by forming the eave rib 30 in accordance with the curvature of the outer shape of the upper part of the vehicle of the back door glass 20, there is a sense of incongruity with the outline of the back door glass 20. It can be prevented from occurring. That is, even if the eave rib 30 is provided, the aesthetic appearance is not impaired when the back door 16 is opened.

  By the way, as shown in FIG. 1 and FIG. 2B, on the side side of the door inner panel 24, the outer edge side of the door inner panel 24 is further in the vehicle vertical direction than the seal portion S with the weather strip 28. Side ribs 32 are extended along.

  The side ribs 32 guide rainwater flowing through the door inner panel 24 to the peripheral side of the opening 14 of the body body 11 (the drainage groove 15 of the quarter panel 13) (in the direction of arrow F). That is, the water that has entered from the side of the back door 16 is guided to the peripheral side of the opening 14 of the body body 11 through the side rib 32, thereby preventing water from entering the inside of the back door 16. .

  As shown in FIGS. 1 and 3, the vehicle upper side of the side rib 32 is located between the seal portion S between the eave rib 30 and the weather strip 28. That is, the vehicle upper side of the side rib 32 overlaps with the eaves rib 30 when viewed from the vehicle vertical direction.

  As a result, on the side of the back door 16, the water that has entered from the upper edge of the back door 16 or the water that has entered from the side of the back door 16 has the eaves rib 30 (see the directions of arrows D and E) and It is guided to the peripheral side of the opening 14 of the body main body 11 by at least one of the side ribs 32 (see the arrow F direction). That is, the two-stage function of the eave rib 30 and the side rib 32 can effectively prevent or suppress the intrusion of rainwater into the vehicle interior side.

(Other embodiments)
(1) In the above embodiment, as shown in FIG. 1, the eave rib 30 is extended to the side of the door inner panel 24 along the vehicle width direction on the upper edge side of the door inner panel 24. The eaves rib 30 is designed such that at least the center side in the vehicle width direction swells upward in the vehicle.

  On the other hand, in this embodiment, as shown in FIG. 6, at least one guide portion 36 that swells downward in the vehicle is formed in a portion other than both end sides of the eave rib 34, and the guide portion 36 The rainwater that has entered from the upper edge of the back door 16 is guided to the rear end portion 26 side of the roof panel 25 (in the direction of arrow D), and the water flowing along the extending direction of the eave rib 34 is guided through the guide portion. Move to 36 (arrow E direction).

  That is, here, rainwater that has entered from the upper edge of the back door 16 is not transmitted to both ends of the eave rib 34, and rainwater does not flow to the side of the back door 16 through the eave rib 34. I am doing so. With such a configuration, the intrusion of rainwater into the passenger compartment may be prevented or suppressed.

(2) Also, as shown in FIG. 1, an eave rib 30 is extended on the upper edge side of the door inner panel 24 to the side of the door inner panel 24 along the vehicle width direction. Side ribs 32 extend along the vehicle vertical direction on the side of 24.

  On the other hand, in this embodiment, as shown in FIGS. 7A and 7B, both end sides of the eave rib 38 are along the shape of the side rib 32 provided on the side side of the door inner panel 24. Is formed. In this case, rainwater that has entered from the upper edge portion of the back door 16 is guided to the rear end portion 26 side of the roof panel 25 by the eave rib 38 (in the direction of arrow D), and along the eave rib 38, The side is guided to the peripheral side (drainage groove 15 of the quarter panel 13) of the opening 14 of the body 11 (direction of arrow E).

  Here, even if rainwater guided along the eave rib 38 to the peripheral side of the opening 14 of the body main body 11 (the drainage groove 15 of the quarter panel 13) gets over the eave rib 38, the eave rib 38 Since the side rib 32 is provided inside the rainwater, the rainwater is guided to the peripheral side of the opening 14 of the body main body 11 (the drainage groove 15 of the quarter panel 13) by the side rib 32. With such a configuration, the intrusion of rainwater into the passenger compartment may be prevented or suppressed.

11 Body 12 Vehicle 13 Quarter panel (Body)
15 Drainage (body body)
16 Back door 22 Door outer panel 24 Door inner panel 25 Roof panel (body body)
26 Rear end (body body)
28 weatherstrip 30 ribs (1st rib)
32 Side rib (second rib)
34 ribs (1st rib)
36 Guides 38 Ribs (1st rib)
S Seal part

Claims (3)

A door inner panel constituting an inner plate of a back door that opens and closes an opening that opens toward the rear of the vehicle;
A seal portion that is located on a peripheral side of the door inner panel and seals in contact with a weather strip provided on a peripheral side of the opening in a state where the back door is closed;
The door inner panel is disposed further on the upper edge side than the seal portion located on the upper edge side of the door inner panel, and extends to the side of the door inner panel along the vehicle width direction. A first rib for projecting and guiding water flowing along the upper edge side of the door inner panel to the body body side;
Extends along the vertical direction of the vehicle further to the outer edge side of the door inner panel than the seal portion located on the side of the door inner panel, and guides the water flowing along the door inner panel to the lower side of the body body. And the second rib disposed between the first rib and the seal portion on the upper side in the vehicle vertical direction;
A backdoor structure for a vehicle.   The vehicle back door structure according to claim 1, wherein at least a center side of the first rib bulges upward in the vehicle.   2. The vehicle back door structure according to claim 1, wherein at least one guide portion that bulges downward in the vehicle is formed in a portion other than both ends of the first rib.

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