JP2009184632A - Rain water draining structure of back door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rain water draining structure of a back door, effectively preventing rain water from flowing down to a vehicle cabin when opening the back door. <P>SOLUTION: Panel side parts 21 are formed at right and left end parts of a back door panel 2, and a spoiler 4 for straightening air is mounted at an upper end part 101 of the back door panel 2. Each of the panel side parts 21 has a first dam part 11 forming a difference in level between the first dam part 11 and an external surface of back window glass 3 in portions adjacent to right and left sides of the back window glass 3, and has a second dam part 12 forming a difference in level between the second dam part 12 and a mounting surface 221 mounted with the spoiler 4 in portions adjacent to right and left sides of the spoiler 4 and in a position extended from the first dam part 11. When opening the back door 1, rain water falling on the back window glass 3 is drained to drainage receiving parts 82 provided on right and left sides of a rear part opening part 81 by the first dam part 11 and the second dam part 12. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a rainwater drainage structure for a flip-up backdoor.

In automobiles such as minivans, hatchbacks, and box types, a flip-up back door with a structure that opens upward is provided to the rear opening provided in the main body, and a spoiler (tail gate) for wind regulation is provided at the upper end of the back door. A structure with a spoiler is often used.
In order to drain rainwater that has fallen on the back window glass when the back door is opened to drainage receiving portions provided on the left and right sides of the rear opening, a raindrop that receives rainwater is received at the upper corner of the back door. A channel (a rain prevention member) is provided. This rainproof structure of the back door is disclosed in Patent Document 1, for example.
In this Patent Document 1, the raindrop prevention member is attached to the inner surface of the door frame. When the backdoor is opened upward, the raindrop prevention member receives the rainwater that has fallen on the backdoor glass, and then the opening of the backdoor. It flows down toward the upper part of the opening side edge.

  However, the amount of rainfall is large, and some raindrop prevention members cannot receive rainwater. When this rainwater overflows from the raindrop prevention member, the overflowing rainwater may flow into the vehicle compartment. Therefore, in the rainwater drainage structure at the back door, further ingenuity is required to prevent the rainwater from flowing into the vehicle compartment.

JP 2004-217152 A

  The present invention has been made in view of such conventional problems, and provides a rainwater drainage structure for a backdoor that can effectively prevent rainwater from flowing into the vehicle compartment when the backdoor is opened. It is something to try.

1st invention makes it possible to open and close the rear opening in the rear part of the main body, and in the rainwater drainage structure in the flip-up backdoor configured to rotate around the upper end,
The back door has a back door panel made of a steel plate formed with a door opening in the upper portion of the back door, and a glass back window glass disposed in the door opening,
The left and right end portions of the back door panel are formed with panel side portions located on the left and right outside of the left and right edges of the back window glass, and the upper end portion of the back door panel has a wind-control spoiler. Is installed,
The panel side portion protrudes outward from the outer surface of the back window glass at a portion adjacent to the left and right sides of the back window glass, and forms a step with the outer surface of the back window glass. And projecting outwardly from the mounting surface to which the spoiler is mounted at a position extending from the first damming portion in a portion adjacent to the left and right of the spoiler, and a step is formed between the mounting surface and the mounting surface. Has a second dam to form,
When the back door is opened, the rainwater that has fallen on the back window glass is drained by the first damming portion and the second damming portion to drain receiving portions provided on the left and right sides of the rear opening. It is in the rainwater drainage structure of the back door characterized by the above-mentioned (Claim 1).

In the rainwater drainage structure of the flip-up type back door of the present invention, the shape of the back door panel constituting the back door is devised.
Specifically, in the present invention, the first damming portion and the second damming portion are formed on the panel side portions located at the left and right ends of the back door panel.

When the back door is fully opened and is in a substantially horizontal state, rainwater that has fallen on the back window glass flows mainly to the left and right of the back window glass. At this time, the rainwater that has flowed to the left and right can be blocked by the first blocking portion on the side of the panel so as not to fall to the left and right of the back door.
Then, the rainwater blocked by the first damming portion can flow forward along the first damming portion, dammed by the second damming portion, and can flow forward of the second damming portion, Then, it can drain from the 2nd dam part to the drainage receiving part provided in the right and left with respect to the rear part opening part of the main body.

  In addition, it is also possible to dam the rain water that has fallen on the back window glass and has flowed forward of the back window glass so that it does not fall forward of the back door by a spoiler at the upper part of the panel. At this time, the rainwater blocked by the spoiler flows to the left and right along the spoiler, is blocked by the second blocking portion, and receives drainage provided from the second blocking portion to the left and right of the rear opening of the main body. It can be drained to the section.

As described above, in the rainwater drainage structure for a back door of the present invention, for example, even when the backdoor is fully opened when the amount of rainfall is large, the rainwater that has rained on the back window glass is The damming portion and the second damming portion can stably drain water to the drainage receiving portion.
Therefore, according to the rainwater drainage structure of the back door of the present invention, it is possible to effectively prevent rainwater from flowing from the rear opening of the main body into the vehicle compartment when the backdoor is opened.

The second invention is a rainwater drainage structure in a flip-up backdoor that is configured to be able to open and close the rear opening at the rear part of the main body and to rotate around the upper end part.
The back door has a back door panel made of a steel plate formed with a door opening in the upper portion of the back door, and a glass back window glass disposed in the door opening,
The back window glass is formed to the outside position of the side of the panel located at the left and right ends of the back door panel, and a spoiler for air conditioning is attached to the upper end of the back door panel,
Mold parts are attached to the left and right edges of the back window glass in a state of sandwiching the back window glass, and the back parts of the back window glass protrude outward from the outer surface of the back window glass by the mold parts. A first damming portion is formed to form a step with the outer surface of
A portion adjacent to the left and right sides of the spoiler and extending from the first damming portion protrudes outward from the attachment surface to which the spoiler is attached, and forms a step between the attachment surface. 2 dams are formed,
When the back door is opened, the rainwater that has fallen on the back window glass is drained by the first damming portion and the second damming portion to drain receiving portions provided on the left and right sides of the rear opening. It is in the rainwater drainage structure of the back door characterized by the above-mentioned (Claim 2).

In the rainwater drainage structure of the flip-up type back door of the present invention, the structure of the back window glass and the shape of the back door panel constituting the back door are devised.
Specifically, in the present invention, the first damming portion is formed by molding parts attached to the left and right edge portions of the back window glass, and the second damming portion is formed in the back door panel adjacent to the left and right of the spoiler. Forming part.

In the present invention, as in the first invention, for example, even when the back door is fully opened when the amount of rainfall is large, the rainwater that has rained on the back window glass is removed from the first dam. The portion and the second damming portion can stably drain water to the drain receiving portion.
Therefore, the rainwater drainage structure for the back door of the present invention can effectively prevent rainwater from flowing from the rear opening of the main body into the vehicle compartment when the backdoor is opened.

A preferred embodiment in the first and second inventions described above will be described.
In the first aspect of the invention, the step forming position in the left-right direction in the second damming portion can be made substantially the same as the step forming position in the left-right direction in the first damming portion. Further, the step forming position in the left-right direction in the second damming portion can be set to an outer position in the left-right direction than the step forming position in the left-right direction in the first damming portion.

In the second invention, the molding component can be formed by molding resin, rubber, or the like, and can be provided over the entire length of the left and right edges of the back window glass. And the shape change part for making the left-right direction level | step difference formation position in a 1st damming part into the substantially same position as the left-right direction level | step difference formation position in a 2nd damming part is provided in the upper end part of a molding part. Can do.
In the first and second inventions, the outer surface height position of the second damming portion is substantially the same as the outer surface height position of the first damming portion, or more than the outer surface height position of the first damming portion. It can be set to a high position (outside position).

  Moreover, in the said 1st, 2nd invention, the conventional rain channel (rain drip prevention member) can be used together. In this case, a rain drain channel for receiving rain water flowing down from the back window glass is provided on the panel side portion of the back door panel, so that rain water can be reliably prevented from flowing into the vehicle compartment from the rear opening of the main body.

Embodiments of the rainwater drainage structure for a back door according to the present invention will be described below with reference to the drawings.
(Example 1)
As shown in FIGS. 1 and 2, the rainwater drainage structure in the back door 1 of the present example allows the rear opening 81 at the rear of the main body 8 to be opened and closed, and rotates around the upper end 101 to open. In the flip-up type back door 1 configured, when the back door 1 is opened in a substantially horizontal state, rainwater can be drained to drain receiving portions 82 provided on the left and right sides of the rear opening 81. is there. The back door 1 is formed by arranging a glass back window glass 3 with respect to a back door panel 2 made of steel plate. The back door panel 2 is formed with a door opening 20 in an upper portion of the back door 1, and the back window glass 3 is disposed in a state of closing the door opening 20. Here, FIGS. 1 and 2 show a state in which the back door 1 is opened with respect to the main body 8.

  At the left and right ends of the back door panel 2, panel side portions 21 are formed on the left and right outer sides of the left and right edges of the back window glass 3, and the upper end 101 of the back door panel 2 is for wind regulation. The spoiler 4 is attached. As shown in FIG. 3, the panel side portion 21 protrudes outward from the outer surface of the back window glass 3 in a portion adjacent to the left and right sides of the back window glass 3 and forms a step between the outer surface of the back window glass 3. It has the 1st damming part 11 to do. Further, as shown in FIG. 4, the panel side portion 21 is a portion adjacent to the left and right of the spoiler 4 and extends outward from the mounting surface 221 to which the spoiler 4 is attached at a position extending from the first damming portion 11. The second dam portion 12 that forms a step with the mounting surface 221 is provided.

And the rainwater drainage structure of the back door 1 is shown in FIG. 1. When the back door 1 is opened, the rainwater rained on the back window glass 3 is caused by the first damming portion 11 and the second damming portion 12. It is configured to drain water to a drain receiving portion 82 provided on the left and right with respect to the rear opening 81. In the figure, the flow of rainwater is indicated by an arrow S.
In this example, the left and right or left and right direction refers to the left and right direction W in the vehicle, and the front refers to the front F of the vehicle. Further, the outside means the outside of the vehicle.

Below, it explains in full detail with reference to FIGS. 1-5 about the rainwater drainage structure of the back door 1 of this example.
A vehicle adopting the rainwater drainage structure of the back door 1 of this example is a passenger car such as a minivan, a hatchback, or a box type.
As shown in FIGS. 3 and 4, the back door 1 of this example is of a panel parting type in which the panel side portions 21 of the back door panel 2 are located at the left and right ends of the back door 1. The back door panel 2 is configured by caulking an inner panel 25 disposed on the vehicle compartment side and an outer panel 26 disposed on the vehicle compartment outer side.
The back window glass 3 is formed in a curved shape in which left and right end portions are located in the front F. As a result, when the back door 1 is opened in a substantially horizontal state, rainwater that has fallen on the back window glass 3 flows down to the left and right.

  As shown in FIGS. 1 and 2, the spoiler 4 of this example is a so-called tailgate spoiler, and facilitates securing a rear view at the time of rain due to the wind-tuning effect. The spoiler 4 is attached to a panel upper part 22 located above the door opening 20 in the back door panel 2. Further, a portion adjacent to the left and right of the spoiler 4 and above the left and right ends of the back window glass 3 includes a portion where the spoiler 4 is not provided, and this portion is a mounting surface 221 in the panel upper portion 22. As exposed.

As shown in FIG. 3, the first dam portion 11 of the present example is formed by the end portion of the concave portion 211 formed on the panel side portion 21 of the back door panel 2 for arranging the back window glass 3.
As shown in FIG. 4, the second dam portion 12 of this example is formed in a shape that protrudes from the mounting surface 221 in the panel upper portion 22, and forms a step with the mounting surface 221. As shown in FIG. 1, the second blocking portion 12 can be formed by raising a part of the panel side portion 21. As shown in FIG. 5, the entire panel side portion 21 is formed on the panel upper portion 22. It can also be formed so as to protrude from the mounting surface 221 (this shape is indicated by a broken line in FIG. 4).
Further, as shown in FIG. 1, the step forming position in the left-right direction W in the second damming portion 12 is substantially the same as the step forming position in the left-right direction W in the first damming portion 11. The outer surface height position of the portion 12 is substantially the same as the outer surface height position of the first damming portion 11.

  As shown in FIG. 2, the drainage receiving portion 82 in the main body 8 of this example is formed by a concave depression 83 that receives the end of the back door 1 when the back door 1 is closed around the rear opening 81. Is formed. The concave depressed portion 83 is formed so as to be depressed on the indoor side from the design surface (the surface exposed when the back door 1 is closed) of the outer panel of the main body 8.

In the rainwater drainage structure of the flip-up type back door 1 of this example, the shape of the back door panel 2 constituting the back door 1 is devised.
Specifically, in this example, the shape of the panel side part 21 located at the left and right ends of the back door panel 2 is changed to form the first damming part 11 and the second damming part 12. .

  When the back door 1 is fully opened to be in a substantially horizontal state, rainwater that has fallen on the back window glass 3 mainly flows to the left and right of the back window glass 3 and to the front F. At this time, rainwater that flows to the left and right can be blocked by the first blocking section 11 in the panel side portion 21 so as not to fall to the left and right of the back door 1. Further, the rainwater that has flowed to the front F can be blocked by the spoiler 4 at the panel upper portion 22 so as not to fall to the front F of the back door 1.

  Then, the rainwater blocked by the first damming portion 11 flows to the front F along the first damming portion 11, and is dammed by the second damming portion 12 and forward of the second damming portion 12. Then, the water can be drained from the second blocking portion 12 to the drain receiving portions 82 provided on the left and right sides of the rear opening 81 of the main body 8. The rainwater blocked by the spoiler 4 flows to the left and right along the spoiler 4 and is blocked by the second blocking portion 12 and from the second blocking portion 12 to the left and right of the rear opening 81 of the main body 8. It is possible to drain to the drain receiving part 82 provided in

In this way, in the rainwater drainage structure of the back door 1 of this example, for example, even when the backdoor 1 is fully opened when the amount of rainfall is large, the rainwater that has rained on the back window glass 3 is kept. The first damming portion 11 and the second damming portion 12 can stably drain the water to the drainage receiving portion 82.
Therefore, according to the rainwater drainage structure of the back door 1 of this example, it is possible to effectively prevent rainwater from flowing from the rear opening 81 of the main body 8 into the vehicle compartment when the back door 1 is opened. Can do.

(Example 2)
In this example, as shown in FIGS. 6 to 8, in the glass parting type back door 1 in which the back window glass 3 is formed up to the outer position of the panel side part 21 located at the left and right ends of the back door panel 2, This is an example employing a rainwater drainage structure that prevents rainwater from flowing down into the vehicle compartment when the back door 1 is opened.
Mold parts 5 are attached to the left and right edges of the back window glass 3 of this example in a state where the back window glass 3 is sandwiched. And in the back door 1 of this example, the 1st damming part 11 which protrudes outside from the outer surface of the back window glass 3 by the molding part 5 and forms a step between the outer surface of the back window glass 3 is provided. Is formed.

As shown in FIG. 7, the panel side portion 21 of the back door panel 2 of this example is arranged on the indoor side with respect to the back window glass 3.
Further, as shown in FIG. 8, the second damming portion 12 of the present example is located at an upper position with respect to the left and right end portions of the back window glass 3 at the left and right end portions (upper end portion of the panel side portion 21) of the panel upper portion 22. Is formed. Further, a portion adjacent to the left and right of the spoiler 4 and above the left and right ends of the back window glass 3 includes a portion where the spoiler 4 is not provided, and this portion is a mounting surface 221 in the panel upper portion 22. As exposed. And the 2nd dam part 12 of this example is formed in the shape which protrudes from the attachment surface 221 in the panel upper part 22, and forms the level | step difference between the attachment surfaces 221. As shown in FIG.

The molding part 5 of this example is formed by molding resin, rubber, or the like, and is provided over the entire length of the left and right edges of the back window glass 3. As shown in FIG. 6, a shape changing portion 52 is formed at the upper end portion of the molding part 5 so as to protrude inward in the left-right direction W as compared with the general portion 51. The first damming portion 11 of this example is formed between the general portion 51 and the shape changing portion 52 of the molding part 5 and the outer surface of the back window glass 3.
Further, the step forming position in the left-right direction W in the shape changing portion 52 is set to be substantially the same position as the step forming position in the left-right direction W in the second damming portion 12.

Also in this example, as in the first embodiment, for example, even when the back door 1 is fully opened when the amount of rainfall is large, the rainwater that has rained on the back window glass 3 is removed from the first weir. By the stop part 11 and the 2nd dam part 12, it can drain stably to the drain receiving part 82.
Also in this example, other configurations are the same as those of the first embodiment, and the same effects as those of the first embodiment can be obtained.

Explanatory drawing which shows the rainwater drainage structure of the back door in Example 1 in the state which opened the back door. Explanatory drawing which shows the rear part of the motor vehicle in the state which opened the back door in Example 1. FIG. It is a figure which shows the formation state of the 1st damming part in Example 1, and is the sectional view on the AA line in FIG. It is a figure which shows the formation state of the 2nd dam part in Example 1, and is the BB sectional view taken on the line in FIG. Explanatory drawing which shows the rainwater drainage structure of the other back door from which the shape of the 2nd dam part in Example 1 differs. Explanatory drawing which shows the rainwater drainage structure of the back door in Example 2 in the state which opened the back door. It is a figure which shows the formation state of the 1st damming part in Example 2, and is CC sectional view taken on the line in FIG. It is a figure which shows the formation state of the 2nd dam part in Example 2, and is DD sectional view taken on the line in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Back door 101 Upper end part 11 1st dam part 12 2nd dam part 2 Back door panel 20 Door opening part 21 Panel side part 22 Panel upper part 221 Mounting surface 3 Back window glass 4 Spoiler 5 Mold parts 8 Main body 81 Rear part opening Part 82 Drainage receiving part W Left-right direction F Front

Claims (2)

In the rainwater drainage structure in the flip-up backdoor configured to be able to open and close the rear opening in the rear part of the main body and to rotate around the upper end,
The back door has a back door panel made of a steel plate formed with a door opening in the upper portion of the back door, and a glass back window glass disposed in the door opening,
The left and right end portions of the back door panel are formed with panel side portions located on the left and right outside of the left and right edges of the back window glass, and the upper end portion of the back door panel has a wind-control spoiler. Is installed,
The panel side portion protrudes outward from the outer surface of the back window glass at a portion adjacent to the left and right sides of the back window glass, and forms a step with the outer surface of the back window glass. And projecting outwardly from the mounting surface to which the spoiler is mounted at a position extending from the first damming portion in a portion adjacent to the left and right of the spoiler, and a step is formed between the mounting surface and the mounting surface. Has a second dam to form,
When the back door is opened, the rainwater that has fallen on the back window glass is drained by the first damming portion and the second damming portion to drain receiving portions provided on the left and right sides of the rear opening. The rainwater drainage structure of the back door, characterized by In the rainwater drainage structure in the flip-up backdoor configured to be able to open and close the rear opening in the rear part of the main body and to rotate around the upper end,
The back door has a back door panel made of a steel plate formed with a door opening in the upper portion of the back door, and a glass back window glass disposed in the door opening,
The back window glass is formed to the outside position of the side of the panel located at the left and right ends of the back door panel, and a spoiler for air conditioning is attached to the upper end of the back door panel,
Mold parts are attached to the left and right edges of the back window glass in a state of sandwiching the back window glass, and the back parts of the back window glass protrude outward from the outer surface of the back window glass by the mold parts. A first damming portion is formed to form a step with the outer surface of
A portion adjacent to the left and right sides of the spoiler and extending from the first damming portion protrudes outward from the attachment surface to which the spoiler is attached, and forms a step between the attachment surface. 2 dams are formed,
When the back door is opened, the rainwater that has fallen on the back window glass is drained by the first damming portion and the second damming portion to drain receiving portions provided on the left and right sides of the rear opening. The rainwater drainage structure of the back door, characterized by

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