JP2018172042A - Vehicle back door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle back door that can drain water to the outside of a cabin when a back door is opened without the need of an addition part and impairing design property.SOLUTION: A back door 7 includes: an upper outer member 8; and a spoiler 10 mounted in an upper part of the upper outer member 8. Wall parts 14 extending in a longitudinal direction are respectively provided so as to protrude on both right and left sides of a top face 8a of the upper outer member 8. The spoiler 10 is fixed to the upper outer member 8 while being placed on the wall part 14.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a vehicle back door.

  As a conventional vehicle back door, for example, a structure described in Patent Documents 1 and 2 is known. The back door described in Patent Literature 1 includes a back door glass bonded to the outer plate of the door frame, an air spoiler attached to the upper frame portion of the door frame along the upper edge of the back door glass over the entire width in the vehicle width direction, and The raindrop prevention member is attached to the inner plate of the door frame and receives rainwater falling from the corner between the upper edge and the side edge of the back door glass when the back door is fully opened, and restricts the falling position. ing. The raindrop prevention member includes a flat plate portion that receives rain water falling from the side edge of the back door glass, a side wall portion that stands up from the side edge of the flat plate portion and faces the side edge of the back door glass with a gap therebetween, A draining portion that is provided along the upper edge of the outer surface and overflows over the side wall and causes the overflowing water to fall outward in the vehicle width direction.

  The back door described in Patent Literature 2 includes a back window glass disposed so as to close the door opening of the back door panel, and a spoiler attached to the upper end of the back door panel. Panel side portions are formed at the left and right ends of the back door panel. The panel side portion is disposed in a portion adjacent to the left and right sides of the back window glass, and is a first damming portion that forms a step with the outer surface of the back window glass, and a portion adjacent to the left and right sides of the spoiler. It has a second damming portion that is formed at a position extending from the damming portion and forms a step between the mounting surface to which the spoiler is attached. When the back door is opened, rainwater that has fallen on the back window glass is drained to the right and left drainage receiving portions by the first damming portion and the second damming portion.

JP 2004-217152 A JP 2009-184632 A

  In the above prior art, when the back door is opened, rainwater can be prevented from entering the passenger compartment by draining the rainwater outside the passenger compartment. However, in Patent Document 1, it is necessary to add a special part such as a rain prevention member in order to prevent rainwater from entering the passenger compartment. Moreover, in the said patent document 2, since the convex part (2nd damming part) which defines a drainage channel is provided in the outer side of the left-right direction rather than the spoiler, it looks bad and design property is impaired.

  An object of the present invention is to provide a vehicular back door that can drain water to the outside of the passenger compartment when the back door is opened without requiring additional parts and without impairing the design.

  One aspect of the present invention is a vehicular backdoor that is openably / closably attached to a rear portion of a vehicle body, and includes an outer member and a spoiler attached to an upper portion of the outer member. First wall portions extending in the direction are provided so as to project, and the spoiler is fixed to the outer member in a state of being placed on the first wall portion.

  In such a vehicular back door, first wall portions extending in the front-rear direction are respectively provided on the left and right sides of the upper surface of the outer member. For this reason, when the back door is opened, water that flows outward in the left-right direction on the upper surface of the outer member flows to the front side (vehicle body side) along the first wall portion on the upper surface of the outer member. It drains out of the passenger compartment through the gap with the door. Thereby, water can be drained out of the passenger compartment when the back door is opened without any additional parts. Further, since the spoiler is placed on the first wall portion that defines the drainage channel, it is not necessary to provide the convex portion that defines the drainage channel on the outer side in the left-right direction than the spoiler. Thereby, the design property of a back door is not spoiled.

  A second wall portion extending in the front-rear direction protrudes outside the first wall portion on the upper surface of the outer member in the left-right direction, and the spoiler is placed on the first wall portion and the second wall portion. In this state, the outer member may be fixed. In such a configuration, even when the water flowing toward the outside in the left-right direction on the upper surface of the outer member when the back door is opened exceeds the first wall portion, the water flows between the first wall portion and the second wall portion. It begins to flow forward between the walls. Thereby, water can be reliably discharged out of the passenger compartment when the back door is opened.

  The spoiler may be fixed to the outer member at the first wall portion or the second wall portion. In such a configuration, since the first wall portion or the second wall portion is effectively used as a spoiler fixing portion, it is not necessary to separately provide a fixing portion on the outer member. Therefore, the structure of the outer member can be simplified.

  A recessed portion may be provided adjacent to the first wall portion on the inner side in the left-right direction with respect to the first wall portion on the upper surface of the outer member. In such a configuration, when the back door is opened, water that has flowed outward in the left-right direction on the upper surface of the outer member is accumulated in the recessed portion. Therefore, it becomes easy for water to flow to the front side along the first wall portion without exceeding the first wall portion.

  According to the present invention, water can be discharged out of the passenger compartment when the back door is opened without requiring additional parts and without impairing the design.

It is a perspective view showing a vehicle provided with a back door for vehicles concerning one embodiment of the present invention. FIG. 2 is an exploded perspective view of the vehicle back door shown in FIG. 1. It is sectional drawing which shows the upper part of the vehicle back door shown by FIG. FIG. 4 is a cross-sectional view illustrating a fixing structure of an upper outer member and a spoiler illustrated in FIG. 3.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a perspective view showing a vehicle including a vehicle back door according to an embodiment of the present invention. In FIG. 1, a vehicle 1 includes a vehicle body 2. A roof panel 3 is provided on the top of the vehicle body 2, and side panels 4 are provided on both sides of the vehicle body 2. The arrow FR in the figure indicates the front side of the vehicle 1 in the front-rear direction, the arrow UP in the figure indicates the upper side in the vertical direction of the vehicle 1, and the arrow OUT in the figure indicates the vehicle 1 The outside in the left-right direction (vehicle width direction) is shown.

  The rear end of the roof panel 3 is provided with a drainage groove 5 that extends in the left-right direction of the vehicle 1 (hereinafter simply referred to as the left-right direction) and allows water such as rainwater to flow to the side panel 4 side. The rear end of the side panel 4 is provided with a drainage groove 6 that extends in the vertical direction of the vehicle 1 (hereinafter simply referred to as the vertical direction) so as to communicate with the drainage groove 5 and allows water to flow downward. .

  A vehicle back door 7 of the present embodiment (hereinafter simply referred to as a back door 7) is attached to the rear portion of the vehicle body 2 so as to be openable and closable. The back door 7 is supported at the rear end portion of the roof panel 3 so as to be pivotable in the vertical direction via a hinge (not shown). In the following description, the vertical direction and the front-rear direction regarding the back door 7 are directions in a state where the back door 7 is closed with respect to the vehicle body 2 (see FIG. 1).

  FIG. 2 is an exploded perspective view of the back door 7. 1 and 2, the back door 7 covers an inner panel (not shown) having an opening and the entire upper portion of the inner panel including the opening, and is disposed on the rear side (outside of the passenger compartment) of the inner panel. An upper outer member 8 (outer member) attached to the inner panel so that the outer panel is attached to the inner panel so as to be arranged behind the inner panel below the upper outer member 8 (outside the vehicle compartment) 9 and a spoiler 10 attached to the upper part of the upper outer member 8.

  The upper outer member 8 is made of resin (for example, polycarbonate). The inner panel, the outer panel 9 and the spoiler 10 are made of resin (for example, polypropylene).

  The upper outer member 8 has a transparent resin portion 11 formed of a transparent resin and a colored resin portion 12 formed of a colored resin. As the colored resin forming the colored resin portion 12, for example, a black resin material is used. The upper outer member 8 is formed by injection molding using, for example, an upper mold, a lower mold, and a slide mold.

  The transparent resin portion 11 forms the outer surface of the upper outer member 8 in the passenger compartment. The colored resin portion 12 is integrated with the transparent resin portion 11 so as to be disposed on the vehicle interior side of the edge portion of the transparent resin portion 11. That is, the colored resin portion 12 has a frame shape. A region of the upper outer member 8 that is disposed in the opening (not shown) of the inner panel and that is formed only by the transparent resin portion 11 is a window portion of the back door 7.

  A wall 13 extending in the front-rear direction (hereinafter simply referred to as the front-rear direction) of the vehicle 1 protrudes from the center of the upper surface 8a of the upper outer member 8 in the vehicle width direction. Wall portions 14 (first wall portions) extending in the front-rear direction are provided on both end sides in the left-right direction on the upper surface 8 a of the upper outer member 8. That is, the wall portion 14 protrudes from the left and right sides of the upper surface 8 a of the upper outer member 8. The wall portions 13 and 14 protrude above the upper outer member 8. The walls 13 and 14 also have a function of fixing the spoiler 10 to the upper outer member 8 (described later).

  FIG. 3 is a cross-sectional view showing the upper part of the back door 7. In FIG. 3, the walls 13 and 14 have an inverted U-shaped cross section. On the inner side of the upper surface 8 a of the upper outer member 8 in the left-right direction with respect to the wall 14, a recess 15 is provided adjacent to the wall 14. A part of the recess 15 is defined by the wall 14. The recess 15 extends in the front-rear direction. The recessed portion 15 constitutes a drainage channel through which water such as rainwater existing on the upper surface 8a of the upper outer member 8 flows in the front-rear direction.

  A wall portion 16 (second wall portion) extending in the front-rear direction projects from the wall portion 14 on the upper surface 8a of the upper outer member 8 in the left-right direction (not shown in FIGS. 1 and 2). The wall portion 16 protrudes above the upper outer member 8. The wall portion 16 also has a function of reinforcing the upper outer member 8. The space between the walls 14 and 16 constitutes a drainage channel 17 through which water flows in the front-rear direction. A bent portion 18 that is bent outward and downward in the left-right direction is provided at the upper corner of the upper outer member 8. The wall portion 16 protrudes upward from the upper end of the bent portion 18.

  The spoiler 10 is fixed to the upper outer member 8 while being placed on the wall portions 13, 14, and 16. A gap S is formed between the upper surface 8 a of the upper outer member 8 and the spoiler 10 by the walls 13, 14, and 16. The spoiler 10 extends from one end of the upper outer member 8 in the left-right direction to the other end. Both end portions of the spoiler 10 are curved along the bent portion 18.

  As shown in FIG. 4, the spoiler 10 is fixed to the upper outer member 8 with bolts 19 and nuts 20 at the wall portions 13 and 14. Projections 21 are provided at positions corresponding to the wall portions 13 and 14 in the spoiler 10. The protrusion 21 is provided with a notch 22 for accommodating the head 19 a of the bolt 19. The wall portions 13 and 14 are provided with through holes 23 through which the shaft portion 19b of the bolt 19 passes. With the head portion 19a of the bolt 19 accommodated in the notch 22, the shaft portion 19b of the bolt 19 is passed through the through hole 23, and the nut 20 is screwed into the shaft portion 19b. Is concluded. Thereby, the spoiler 10 and the upper outer member 8 are fixed. Note that the method of fixing the spoiler 10 and the upper outer member 8 with the bolts 19 and the nuts 20 in the walls 13 and 14 is not particularly limited to the above.

  As described above, when the back door 7 is opened, as shown in FIG. 3, water such as rain water flowing toward the outside in the left-right direction on the upper surface 8 a of the upper outer member 8 accumulates in the recess 15. Then, the water flows through the recessed portion 15 along the wall portion 14 to the front side (vehicle body 2 side) and falls into the drainage groove 5 of the roof panel 3. The water is drained outside the passenger compartment by flowing through the drainage groove 5 to the outside in the left-right direction and further flowing down the drainage groove 6 of the side panel 4.

  Further, even if the water accumulated in the dent 15 exceeds the wall 14, the water flows forward through the drainage channel 17 between the walls 14 and 16 and falls into the drainage groove 5 of the roof panel 3. In the same manner as above, it is drained outside the passenger compartment.

  As described above, in the present embodiment, the wall portions 14 extending in the front-rear direction are provided on the left and right sides of the upper surface 8a of the upper outer member 8 respectively. For this reason, when the back door 7 is opened, the water flowing toward the outer side in the left-right direction on the upper surface 8a of the upper outer member 8 flows to the front side along the wall portion 14 on the upper surface 8a of the upper outer member 8. 2 and the back door 7 are drained out of the passenger compartment through the gap (partially closed). Thereby, water can be drained out of the passenger compartment when the back door 7 is opened without providing any additional parts. Further, since the spoiler 10 is placed on the wall portion 14 that defines the drainage channel, it is not necessary to provide a convex portion that defines the drainage channel in the lateral direction outside the spoiler 10. Thereby, the design property of the back door 7 is not impaired.

  Further, in the present embodiment, a wall portion 16 extending in the front-rear direction is projected from the wall portion 14 on the upper surface 8a of the upper outer member 8 in the left-right direction. With such a configuration, when the back door 7 is opened, even if the water flowing toward the outer side in the left-right direction on the upper surface 8a of the upper outer member 8 exceeds the wall portion 14, the water is 16 flows to the front side. Thereby, when the back door 7 is opened, water can be reliably discharged out of the passenger compartment.

  In the present embodiment, the spoiler 10 is fixed to the upper outer member 8 at the wall portions 13 and 14. With such a configuration, the wall portions 13 and 14 are effectively used as fixing points for the spoiler 10, so that it is not necessary to separately provide a fixing portion for the upper outer member 8. Therefore, the structure of the upper outer member 8 can be simplified.

  Further, in the present embodiment, a recessed portion 15 is provided adjacent to the wall portion 14 on the inner side in the left-right direction with respect to the wall portion 14 on the upper surface 8 a of the upper outer member 8. With such a configuration, water that has flowed toward the outer side in the left-right direction on the upper surface 8 a of the upper outer member 8 accumulates in the recessed portion 15. Therefore, water easily flows to the front side along the wall portion 14 without exceeding the wall portion 14.

  The present invention is not limited to the above embodiment. For example, the rear surface 8b (see FIG. 2) of the upper outer member 8 has a shape in which a portion corresponding to the outer side in the left-right direction of the wall portion 14 protrudes rearward from a portion corresponding to the inner side in the left-right direction of the wall portion 14. It may be. In this case, when the back door 7 is opened, water such as rainwater flowing toward the outer side in the left-right direction flows through the rear surface 8b of the upper outer member 8 toward the recessed portion 15. Water is drained out of the passenger compartment through the recess 15 without dripping water from the left and right ends of the vehicle.

  Further, in the above embodiment, the reinforcing wall 16 protrudes outward in the left-right direction from the spoiler fixing wall 14 on the upper surface 8 a of the upper outer member 8, but the reinforcing wall 16 The projecting position of the upper outer member 8 is not particularly limited to this, and may be on the inner side in the left-right direction with respect to the spoiler fixing wall portion 14 on the upper surface 8 a of the upper outer member 8. In this case, the water flowing toward the outer side in the left-right direction on the upper surface 8 a of the upper outer member 8 flows to the front side along the wall portion 16 on the upper surface 8 a of the upper outer member 8. That is, the wall portion 16 becomes the first wall portion, and the wall portion 14 becomes the second wall portion. Further, the reinforcing wall portion 16 may not be particularly provided.

  Moreover, in the said embodiment, although the spoiler 10 is being fixed to the upper outer member 8 with the volt | bolt 19 and the nut 20 in the wall parts 13 and 14, it is not restricted to the form in particular, The wall part 13 in the upper outer member 8 , 14, the spoiler 10 may be fixed to the upper outer member 8. Moreover, as a fixing method, it is not necessary to use especially the volt | bolt 19 and the nut 20, for example, welding etc. may be sufficient.

  Moreover, in the said embodiment, although the upper outer member 8 formed with resin is used, if the window part of the back door 7 is transparent as a material of the upper outer member 8, it will not be specifically limited to resin. .

  DESCRIPTION OF SYMBOLS 1 ... Vehicle, 2 ... Vehicle body, 7 ... Back door (back door for vehicles), 8 ... Upper outer member (outer member), 8a ... Upper surface, 10 ... Spoiler, 14 ... Wall part (1st wall part), 15 ... Recessed portion, 16 ... wall portion (second wall portion).

Claims (4)

In the vehicular back door that can be opened and closed at the rear of the vehicle body,
An outer member;
A spoiler attached to the upper part of the outer member,
First wall portions extending in the front-rear direction project from the left and right sides of the upper surface of the outer member,
The back spoiler for a vehicle, wherein the spoiler is fixed to the outer member in a state of being placed on the first wall portion. A second wall portion extending in the front-rear direction protrudes outside the first wall portion on the upper surface of the outer member in the left-right direction,
The vehicular back door according to claim 1, wherein the spoiler is fixed to the outer member in a state of being placed on the first wall portion and the second wall portion.   The vehicular back door according to claim 2, wherein the spoiler is fixed to the outer member in the first wall portion or the second wall portion.   4. The recess according to claim 1, wherein a recess is provided adjacent to the first wall on the inner side in the left-right direction on the upper surface of the outer member. The vehicle back door as described in the item.

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