JP4858190B2 - Vehicle door structure - Google Patents

Description

  The present invention relates to a vehicle door structure including a vehicle door that closes a door opening formed in a vehicle body.

  Conventionally, as a door structure for vehicles, what was indicated in patent documents 1, for example is known. In this vehicle door structure, an opening weather strip that contacts the sealing surface of the rear door is attached to the vehicle body side, and a door weather strip that contacts the sealing surface of the vehicle body is attached to the rear door side. A lip portion is provided that contacts the sealing surface of the rear door. Thus, by closing the rear door, the opening weather strip is brought into contact with the sealing surface on the rear door side, and the door weather strip is brought into contact with the sealing surface on the vehicle body side. These two sealing surfaces and the door weather strip It seals between the vehicle body and the rear door at three points with the lip portion.

  In this type of vehicle door structure, a seal structure between a door panel below the belt line portion and the vehicle body is used as opposed to a seal structure between the door frame above the belt line portion and the vehicle body. Will be different.

That is, below the belt line portion, the inner panel and the outer panel constituting the door panel are generally joined together by hemming, so that as shown in FIG. It is necessary to secure. For this reason, the distance from the parting line of the rear door to each of the sealing surfaces described above results in being separated from the facing surface on the vehicle body side by a dimension corresponding to the hemming allowance h1. In order to establish the seal at the above-described three points due to this influence, the facing surface of the vehicle body facing the inner panel of the door panel approaches the facing surface of the inner panel of the door panel by the hemming allowance h1. It is necessary to keep the distance between the inner panel and the vehicle body substantially constant.
JP 2006-298323 A (paragraphs 0020, 0021, FIG. 1)

  However, in general, in an automobile (vehicle), a plurality of types of rear door designs are often prepared according to grades, for example, regardless of the same vehicle type. For example, the outer shape of the rear door is the same, but the height of the beltline part in the vertical direction of the vehicle is different, and the shape of the boundary between the door panel and the window glass changes. A panel is required.

  For this reason, as described above, when the configuration is adopted in which the facing surface of the vehicle body is shifted below the belt line portion in a direction approaching the facing surface of the inner panel by the hemming allowance h1, the design of the rear door is achieved. For each type, the inner panel and the vehicle body must be designed, and it is difficult to make the inner panel and the vehicle body common.

  That is, because the facing surface of the vehicle body facing the rear door needs to have a different shape with respect to the beltline portion for the hemming margin h1, for example, the height of the beltline portion is the reference height. When the vehicle changes to the upper side of the vehicle, the outer panel must be changed accordingly, and the inner panel coupled to the outer panel by hemming must also be changed. Since the height position where the allowance h1 is required changes, unless the position of the facing surface on the vehicle body side is also changed, reliable sealing cannot be performed.

  The present invention has been made to solve the above-described conventional problems, and provides a vehicle door structure capable of sharing an inner panel and a vehicle body regardless of changes in a belt line. It is the purpose.

  In order to solve the above-mentioned problem, the feature of the invention according to claim 1 includes a vehicle body having a door opening, and a vehicle door that closes the door opening of the vehicle body. The door comprises a door frame provided at the upper part of the belt line part, and a door panel comprising an outer panel and an inner panel provided at the lower part of the belt line part and coupled to each other by hemming, and is attached to the vehicle door. And a door provided with a lip portion that contacts and seals the inner end surface of the door opening on the vehicle body side and that contacts and seals the facing surface of the vehicle door facing the inner end surface of the door opening. A vehicle door comprising: a weather strip; and an opening weather strip that is attached to the vehicle body and seals against a facing surface of the vehicle door In structure, wherein according to the shape change of the belt line portion is disposed between the inner panel and the door frame, it is that it comprises a patch member coupled by hemming the outer panel.

  According to a second aspect of the present invention, in the first aspect, the inner panel has a facing surface facing the inner end surface of the door opening, and the inner end surface of the door opening facing the facing surface is In other words, it is shifted in a direction approaching the facing surface of the inner panel by an amount corresponding to the hemming allowance by the hemming process.

  The invention according to claim 3 is characterized in that, in claim 2, the patch member has a facing surface facing the inner end surface of the door opening, and the door weather strip mounting surface formed on the facing surface is: The door weather strip mounting surface formed on the inner panel is shifted in a direction approaching the inner end surface of the door opening.

  According to a fourth aspect of the present invention, in the third aspect of the present invention, the opposing surface of the patch member has a vertical surface protruding in a direction approaching the inner end surface of the door opening from the door weather strip mounting surface. The mold portion provided on the door weather strip is in contact with the vertical surface for sealing.

  According to a fifth aspect of the present invention, in the fourth aspect, an engagement member having an engagement portion is formed integrally with the mold portion of the door weather strip, and the engagement portion of the engagement member is the patch member. The mold part of the door weather strip and the vertical surface of the patch member are held in contact with each other.

  According to the invention according to claim 1 configured as described above, the patch member that is disposed between the inner panel and the door frame according to the change in the shape of the belt line portion and is coupled to the outer panel by hemming is provided. Since it is provided, it is only necessary to change the door frame and the outer panel according to the change in the shape of the belt line portion, and the inner panel and the vehicle body side need not be changed at all, and can be made common. As a result, the manufacturing cost of the vehicle door, and thus the vehicle, can be reduced.

  According to the invention of claim 2, the inner panel has a facing surface facing the inner end surface of the door opening, and the inner end surface of the door opening facing the facing surface corresponds to a hemming allowance by hemming. Therefore, even if the facing surface of the inner panel is moved away from the inner end surface of the door opening by hemming, the door weather strip is moved. It is possible to reliably perform the sealing action.

  According to the invention of claim 3, the patch member has a facing surface facing the inner end surface of the door opening, and the door weather strip mounting surface formed on the facing surface is a door formed on the inner panel. Since the weatherstrip mounting surface is shifted in a direction approaching the inner end surface of the door opening, the door weatherstrip can be reliably sealed without changing the shape of the inner end surface of the door opening. Moreover, since it is not necessary to project the inner end face of the door opening to the patch member side, the opening of the vehicle door can be maintained widely.

  According to the fourth aspect of the present invention, the opposing surface of the patch member has a vertical surface protruding in a direction approaching the inner end surface of the door opening from the door weather strip mounting surface. Since the mold part provided in the strip is brought into contact and sealed, the door weather strip mounting surface of the patch member is shifted in a direction approaching the inner end surface of the door opening, so that the lip portion of the door weather strip Even if sealing by cannot be performed, the sealing surface can be changed to a vertical surface.

  According to the fifth aspect of the present invention, an engagement member having an engagement portion is integrally formed on the mold portion of the door weather strip, and the engagement portion of the engagement member engages with the vertical surface of the patch member. Since the mold part of the door weather strip and the vertical surface of the patch member are held in contact with each other, the mold part of the door weather strip and the vertical surface of the patch member can be reliably brought into contact with each other, and the sealing property Can be improved.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, a first embodiment of the invention will be described with reference to the drawings. In the present embodiment, the present invention is applied to the left and right rear doors 10 of a vehicle.

  1 and 2, the left and right rear doors 10 close the door opening 12 formed in the vehicle body 11, and are substantially above the belt line portion 13 and along the upper portion of the door opening 12. A door frame 14 formed in a U-shape is provided, and a door panel 17 including an outer panel 15 and an inner panel 16 described later is provided below the belt line portion 13. Between the door frame 14 and the door panel 17, a window glass 18 that is moved up and down by a power window regulator is provided. Further, on the outer surface of the door frame 14, a relatively narrow light molding 19 is attached along the outer edge of the door frame 14.

  As shown in FIG. 3, the door frame 14 is formed by rolling a single metal plate into a predetermined shape, and an opposing surface 14 a facing the door opening 12 of the vehicle body 11 is formed on an inclined surface. A door weather strip seal surface 21, a door weather strip mounting portion 22 adjacent to the vehicle compartment side of the door weather strip seal surface 21, and an opening weather strip seal surface 23 located at the innermost portion. A rubber door weather strip 25 is mounted on the door weather strip mounting portion 22, and the door weather strip 25 is used for a vehicle when the rear door 10 closes the door opening 12 formed in the vehicle body 11. The seal 11 is brought into contact with the inclined seal surface 26 of the body 11 while being deformed to ensure a sealing property. The door weather strip 25 is provided with a lip portion 27 that is always in contact with the door weather strip sealing surface 21, and the lip portion 27 seals between the door frame 14 and the door weather strip 25.

  A rubber opening weather strip 28 attached to the vehicle body 11 is in contact with the opening weather strip seal surface 23 inside the vehicle rather than the door weather strip 25 while deforming, and the door frame 14 and the opening weather strip 28 are in contact with each other. Sealing performance is ensured.

  As described above, the door frame 14 and the vehicle body 11 are sealed by the door weather strip 25 and the opening weather strip 28 at the three sealing surfaces 21, 23, and 26. The double sealing structure by the strip 28 improves the sealing performance.

  The outer panel 15 and the inner panel 16 constituting the door panel 17 are integrally coupled by a hemming portion 29 at a parting line P1 of the rear door 10. That is, as shown in FIG. 6, the outer edge portion 15 a of the outer panel 15 is bent so as to wrap the outer edge portion 16 a of the inner panel 16, and the peripheral edges of the panels 15 and 16 are integrally coupled. The facing surface 16b of the inner panel 16 facing the inner end surface 12a of the door opening 12 includes a vertical surface 16b1 positioned on the outer side of the vehicle and a door opening 12 from the vertical surface 16b1 positioned on the inner side of the vehicle. A door weather strip mounting surface 16b2 that is retracted by a predetermined amount in a direction away from the inner end surface 12a and an inclined surface 16b3 that connects the vertical surface 16b1 and the door weather strip mounting surface 16b2 are formed.

  The facing surface 16b of the inner panel 16 has substantially the same shape as the facing surface 14a of the door frame 14 described above, but the facing surface 16b of the inner panel 16 is opposed to the parting line P1 of the rear door 10. The surface 14 a extends from the inner end surface 12 a of the door opening 12 by a portion corresponding to the hemming allowance h <b> 1 (see FIG. 6) of the hemming portion 29.

  Accordingly, the inner end surface 12a of the door opening 12 on the vehicle body 11 side corresponds to the above-described three sealing surfaces 21, 23, and 26 while maintaining the same parting width as the door frame 14. In order to ensure the sealing performance at the three points a, b and c, as shown in FIG. 4, it is formed in a shape translated in the direction approaching the facing surface 16b of the inner panel 16 by an amount corresponding to the hemming allowance h1. Has been.

  That is, due to the hemming portion 29 of the door panel 17, the inner end surface 12 a of the door opening 12 is shifted from the position indicated by the two-dot chain line in FIG. 4 to the position indicated by the solid line. Thus, the inner end surface 12a of the door opening 12 facing the upper door frame 14 (see FIG. 3) and the inner end surface 12a of the door opening 12 facing the inner panel 16 of the lower door panel 17 (see FIG. 4). Are formed in different shapes.

  By the way, in the vehicle, although the outer shape of the rear door 10 is the same in the same vehicle type, the height in the vertical direction of the belt line portion 13 is shown in FIG. As shown in FIG. 9 (B), there are cases where a plurality of designs of the rear door 10 are prepared, such as inclining the rear of the belt line portion 13, and the door frame 14 and the door panel 17 The height position connecting the two becomes different. In FIG. 9, a two-dot chain line indicates the belt line portion 13 of the rear door 10 serving as a base.

  For this reason, the door frame 14 and the outer panel 15 need to be manufactured in different shapes according to the design of the rear door 10. Conventionally, the inner panel is changed according to the shape change of the door frame 14 and the outer panel 15. 16 and the vehicle body 11 had to be manufactured.

  However, in the present embodiment, the rear door 10 is provided by arranging the patch member 30 according to the design type between the door frame 14 and the door panel 17 according to the design type of the rear door 10. Regardless of the design type, the inner panel 16 and the vehicle body 11 can be shared.

  A plurality of types of patch members 30 are prepared according to the type of design of the rear door 10. In the embodiment shown in FIGS. 2 and 8, the design of the rear door 10 is changed to a shape in which the rear of the beltline portion 13 is inclined upward toward the rear with respect to the base design. (See FIG. 9B).

  The patch member 30 is formed so that the upper part of the inner panel 16 matches the shape of the outer panel 15 according to the design of the rear door 10, and functions as a part of the inner panel 16. A lower coupling portion 30a is formed at the lower end of the patch member 30 by welding to the upper end of the inner panel 16, and the rear end edge 30b of the patch member 30 in the vehicle front-rear direction matches the shape of the door opening 12. In addition, an upper coupling portion 30c coupled to the lower end of the door frame 14 by welding is formed above the rear end portion.

  As shown in FIGS. 5 and 7, the rear end edge 30b of the patch member 30 is integrally coupled to the outer edge 15a of the outer panel 15 by a hemming portion 31 having a hemming allowance h1. The patch member 30 has a facing surface 30d that faces the inner end surface 12a of the door opening 12. The facing surface 30d is formed in a cross-sectional shape that is substantially approximate to the facing surface 16b of the inner panel 16 described above. ing. That is, the patch member 30 is formed with a vertical surface 30d1 at a position separated from the parting line P1 of the rear door 10 by a predetermined distance L1, and the distance from the parting line P1 of the vertical surface 30d1 is formed on the inner panel 16. It is the same as the distance from the parting line P1 of the vertical surface 16b1.

  On the other hand, the door weather strip mounting surface 30d2 connected to the vertical surface 30d1 of the patch member 30 with a step L2 has a door opening 12 with respect to the door weather strip mounting surface 16b2 formed on the inner panel 16. The difference is that it is provided at a position close to the inner end face 12a by a predetermined amount. The reason is that in order to use the common vehicle body 11, the inner end surface 12 a of the door opening 12 facing the facing surface 30 d of the patch member 30 has a shape as shown by a two-dot chain line in FIG. 4. Therefore, it is necessary to keep the distance between the door weather strip mounting surface 30d2 of the patch member 30 and the inner end surface 12a of the door opening 12 at a size that enables the door weather strip 25 to be sealed.

  In other words, the step size (L2) between the vertical surface 30d1 of the patch member 30 and the door weather strip mounting surface 30d2 is different from the step size between the vertical surface 16b1 of the inner panel 16 and the door weather strip mounting surface 16b2. It is necessary to reduce only the fixed amount. This predetermined amount corresponds to an amount in which the inner end surface 12a of the door opening 12 in FIG. 4 protrudes from the two-dot chain line position to the solid line position toward the facing surface 16b of the inner panel 16.

  As a result, the door weather strip 25 can be sealed without changing the shape of the inner end surface 12a of the door opening 12 on the upper side of the belt line portion 13 serving as a base, and the vehicle body 11 can be shared.

  On the other hand, since the door weather strip mounting surface 30d2 of the patch member 30 approaches the inner end surface 12a side of the door opening 12 by a predetermined amount, sealing by the lip portion 27 of the door weather strip 25 cannot be performed. The vertical surface 30d1 is used to ensure sealing performance.

  That is, a mold part 33 is formed on the door weather strip 25 corresponding to the vertical surface 30d1 of the patch member 30, and the mold part 33 is brought into contact with the vertical surface 30d1 so as to ensure a sealing property. The mold portion 33 is integrally formed with a resin engaging member 34 having a clip 34 a as an engaging portion when the door weather strip 25 is formed, and the clip 34 a is formed on the vertical surface 30 d 1 of the patch member 30. The contact state between the mold part 33 of the door weather strip 25 and the vertical surface 30d1 of the patch member 30 can be maintained by engaging with the engagement hole.

  Since the rear door 10 in the embodiment is configured as described above, the rear end edge 30b of the patch member 30 having a shape corresponding to the design of the rear door 10 is formed on the edge 15a of the outer panel 15 with a hemming portion. 31, the lower coupling portion 30 a of the patch member 30 is integrally coupled to the upper end of the inner panel 16 by welding, and the upper coupling portion 30 c is integrally coupled to the lower end of the door frame 14 by welding or the like.

  According to the above-described embodiment, the patch member 30 disposed between the inner panel 16 and the door frame 14 according to the shape change of the belt line portion 13 and coupled to the outer panel 15 by the hemming portion 31 is provided. Since it is provided, it is only necessary to change the door frame 14 and the outer panel 15 according to the change in the shape of the belt line portion 13, and the inner panel 16 and the vehicle body 11 side do not need to be changed at all, and should be shared. Can do. As a result, it is possible to reduce the manufacturing cost of the rear door 10 and thus the entire vehicle.

  According to the above-described embodiment, the inner panel 16 has the facing surface 16b facing the inner end surface 12a of the door opening 12, and the inner end surface 12a of the door opening 12 facing the facing surface 16b is hemming. Since it is shifted in a direction approaching the facing surface 16b of the inner panel 16 by an amount corresponding to the hemming allowance by the processing portion 29, the facing surface 16b of the inner panel 16 is brought into contact with the inner end surface 12a of the door opening 12 by hemming. Even if it is shifted in a direction away from the door, the sealing action by the door weather strip 25 can be reliably performed.

  According to the above-described embodiment, the patch member 30 has the facing surface 30d facing the inner end surface 12a of the door opening 12, and the door weather strip mounting surface 30d3 formed on the facing surface 30d is the inner panel. Since the door weather strip mounting surface 16b3 formed on the door opening 12 is shifted in a direction approaching the inner end surface 12a of the door opening 12, without changing the shape of the inner end surface 12a of the door opening 12, The sealing action by the door weather strip 25 can be reliably performed, and the inner end surface 12a of the door opening 12 does not need to protrude toward the patch member 30, so that the opening of the rear door 10 can be maintained widely. .

  According to the above-described embodiment, the opposing surface 30d of the patch member 30 has the vertical surface 30d1 protruding in the direction approaching the inner end surface 12a of the door opening 12 from the door weather strip mounting surface 30d3. Since the mold portion 33 provided on the door weather strip 25 is brought into contact with the surface 30d1 and sealed, the door weather strip mounting surface 30d3 of the patch member 30 approaches the inner end surface 12a of the door opening 12. By being changed, even if the sealing by the lip portion 27 of the door weather strip 25 cannot be performed, the sealing surface can be changed to the vertical surface 30d1 and the sealing can be surely performed.

  According to the above-described embodiment, the engagement member 34 having the engagement portion (clip) 34 a is integrally formed on the mold portion 33 of the door weather strip 25, and the engagement portion 34 a is formed on the vertical surface of the patch member 30. Since the mold portion 33 of the door weather strip 25 and the vertical surface 30d1 of the patch member 30 are held in contact with each other, the mold portion 33 of the door weather strip 25 and the vertical surface 30d1 of the patch member 30 are engaged. Can be reliably brought into contact with each other, and the sealing performance can be improved.

  In the above-described embodiment, an example in which the vehicle door structure of the present invention is applied to the rear door 10 has been described. However, the present invention can be similarly applied to a front door of a vehicle.

  In the above-described embodiment, the patch member 30 disposed between the door frame 14 and the inner panel 16 has been described as being integrally joined to the door frame 14 and the inner panel 16 by welding. The connection between the member 30 and the door frame 14 and the inner panel 16 is not necessarily limited to welding.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention described in the claims. Of course, it is possible.

It is a side view which shows the rear part of the vehicle which concerns on embodiment of this invention. It is a figure which shows the principal part of a rear door. It is sectional drawing cut | disconnected along the 3-3 line of FIG. FIG. 4 is a cross-sectional view taken along line 4-4 of FIG. FIG. 5 is a cross-sectional view taken along line 5-5 in FIG. It is the figure which expanded a part of FIG. It is the figure which expanded a part of FIG. It is a figure which shows the external appearance of a patch. It is a figure which shows the various designs of a rear door.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Vehicle door (rear door), 11 ... Vehicle body, 12 ... Door opening part, 12a ... Inner end surface, 13 ... Belt line part, 14 ... Door frame, 14a ... opposing surface, 15 ... outer panel, 16 ... inner panel, 16b ... opposing surface, 16b1 ... vertical surface, 16b3 ... door weather strip mounting surface, 17 ... door panel , 25 ... Door weather strip, 27 ... Lip part, 28 ... Opening weather strip, 29, 31 ... Hemming part, 30 ... Patch member, 30d ... Opposing surface, 30d1 ..Vertical surface, 30d3... Door weather strip mounting surface, 33... Mold part, 34.

Claims (5)

A vehicle body having a door opening, and a vehicle door that closes the door opening of the vehicle body, the vehicle door including a door frame provided on an upper portion of a belt line portion; and the belt A door panel comprising an outer panel and an inner panel provided at a lower portion of the line portion and coupled to each other by hemming, and is attached to the vehicle door and contacts and seals with an inner end surface of the door opening on the vehicle body side And a door weather strip having a lip portion that contacts and seals the facing surface of the vehicle door facing the inner end surface of the door opening, and the facing surface of the vehicle door mounted on the vehicle body In a vehicle door structure comprising an opening weather strip that contacts and seals
A vehicle door structure comprising a patch member disposed between the inner panel and the door frame according to a change in the shape of the belt line portion and coupled to the outer panel by a hemming process. . 2. The inner panel according to claim 1, wherein the inner panel has a facing surface facing the inner end surface of the door opening, and the inner end surface of the door opening facing the facing surface corresponds to a hemming allowance by the hemming process. The vehicle door structure is shifted in a direction approaching the facing surface of the inner panel.
It is.   3. The patch member according to claim 2, wherein the patch member has a facing surface facing an inner end surface of the door opening, and a door weather strip mounting surface formed on the facing surface is a door weather strip formed on the inner panel. A vehicle door structure characterized by being shifted in a direction approaching an inner end surface of the door opening with respect to an attachment surface.   4. The surface of the patch member according to claim 3, wherein the opposing surface of the patch member has a vertical surface protruding in a direction approaching the inner end surface of the door opening from the door weather strip mounting surface, and the door weather strip is provided on the vertical surface. A door structure for a vehicle, characterized in that a mold part provided on the door is sealed by contact.   5. The mold part of the door weather strip according to claim 4, wherein an engaging member having an engaging portion is integrally formed, and the engaging portion of the engaging member engages with a vertical surface of the patch member, A door structure for a vehicle, wherein a mold part of a door weather strip and a vertical surface of the patch member are held in contact with each other.

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