JP2018075996A - Vehicle door structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a closing part from being formed on a joint part of a panel constituting a vehicle door, reduce defects in electro deposition and suppress generation of corrosion and the like.SOLUTION: Joint parts 13, 22 are formed on peripheral edges of a first panel 10 and a second panel 20 constituting a vehicle door. Separation parts 15, 25 disposed in a state where panel surfaces 10a, 20a are arranged at intervals, are provided on a side closer to a panel center than the joint parts 13, 22. With respect to the separation parts 15, 25, the distance between the panel surfaces 10a, 20a is increased as they go toward the center side of the panels from the joint parts 13, 22. A protruding part 30 is provided on one panel surface 20a constituting the separation parts 15, 25. The protruding part 30 is adjacent to the joint parts 13, 22 and is arranged with a space in a cross direction.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a vehicle door structure.

  The vehicle door is configured by overlapping at least two panels. The panel includes, for example, a door outer panel, a door inner panel, and reinforcement disposed between them. A belt line portion is provided at the lower end of the window of the vehicle door. The belt line portion is a portion extending in the vehicle front-rear direction at the lower end of the window.

  The belt line portion includes an outermost door outer panel and an outer reinforcement disposed on the inner side of the door outer panel. By providing the outer reinforcement, the tension of the door outer panel and the strength of the belt line portion are improved.

  Some belt line parts are formed by joining such as hemming joining and mating welding. For example, as disclosed in Patent Document 1, the outer peripheral portion of the door outer panel is folded inward to provide a hemming portion, and the outer peripheral portion of the outer reinforcement is wrapped and joined by the hemming portion. Are known.

JP 2008-68757 A

  In a structure in which the outer reinforcement and the door outer panel are joined by caulking joining and hemming joining, the two panels (outer reinforcement and door outer panel) are in contact with each other adjacent to the joint. By doing so, a bag shape (blocking portion) may be formed.

  If the blocking portion is formed, air pockets may be generated during electrodeposition coating. Moreover, if the said obstruction | occlusion part is formed, corrosion may arise on a panel surface by a water | moisture content being hold | maintained in this obstruction | occlusion part.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to prevent a closed portion from being formed in a portion adjacent to a joint portion of a panel constituting a vehicle door, and to perform electrodeposition. It is to reduce coating defects and suppress the occurrence of corrosion and the like.

  In order to achieve the above object, a vehicle door structure according to the present invention includes a first panel and a second panel constituting a vehicle door, the first panel surface on the inner side in the vehicle width direction of the first panel, It arrange | positions so that the 2nd panel surface of the vehicle width direction outer side of a 2nd panel may oppose. In the vehicle door structure, a joint portion where the first panel surface and the second panel surface are joined is provided on the periphery of the first panel and the second panel. A portion adjacent to the center side is provided with a separating portion in which the first panel surface and the second panel surface are arranged in a state of being spaced apart from each other. The distance between the first panel surface and the second panel surface increases toward the center side, and among the first panel surface and the second panel surface constituting the separation portion, One panel surface is provided with a plurality of projecting portions that project toward the other panel surface, and the plurality of projecting portions are arranged at intervals in the longitudinal direction of the spacing portion.

  According to the present invention, it is possible to prevent a closed portion from being formed at a position adjacent to a joint portion of a panel constituting a vehicle door, reduce electrodeposition coating defects, and suppress the occurrence of corrosion and the like. Is possible.

BRIEF DESCRIPTION OF THE DRAWINGS It is a vehicle door which shows one Embodiment of the vehicle door structure which concerns on this invention, Comprising: It is the schematic side view which looked at the said door from the vehicle width direction inner side. It is a perspective view of the AA arrow of FIG. It is a front sectional view of the AA arrow in FIG. FIG. 4 is a front sectional view showing a state in which there is no protruding portion in FIG. 3, (a) showing a normal state, and (b) showing a state in which an outer reinforcement is raised and a closed portion is formed. . FIG. 3 is a partial cross-sectional perspective view schematically showing a state in which water is flowing into the belt line portion of FIG. 2. It is a top view which shows typically the modification of the protrusion part of FIG.

  Hereinafter, an embodiment of a vehicle door structure according to the present invention will be described with reference to the drawings (FIGS. 1 to 6).

  The vehicle door structure according to this embodiment relates to a joint structure at the upper part of the two panels 10 and 20 constituting the vehicle door 1 on the side of the vehicle body. In this example, a joining structure of a door outer panel (first panel) 10 and an outer reinforcement (second panel) 20 constituting the belt line portion 3 of the vehicle door 1 will be described.

  As shown in FIG. 1, the vehicle door 1 according to the present embodiment is a door disposed on the side of the vehicle body, and includes a door outer panel 10 and an outer reinforcement 20. A panel inner side surface (first panel surface) 10 a on the inner side in the vehicle width direction of the door outer panel 10 faces a reinforcement outer side surface (second panel surface) 20 a on the outer side in the vehicle width direction of the outer reinforcement 20. In this state, the peripheral edge of the door outer panel 10 and the peripheral edge of the outer reinforcement 20 are joined.

  Further, although detailed description is omitted, the door 1 for the vehicle has a door inner panel 4 disposed inside the door outer panel 10 in the vehicle width direction. Also in the door outer panel 10 and the door inner panel 4, there exists a part joined by a peripheral part.

  As shown in FIG. 1, the belt line portion 3 is provided at the lower end of the window 2 of the vehicle door 1 and extends in the vehicle front-rear direction. The belt line portion 3 bulges outward from the outer surface of the window 2 in the vehicle width direction, and includes a part of the door outer panel 10 and a part of the outer reinforcement 20.

  Here, the cross-sectional shape in the vehicle front view of the door outer panel 10 and the outer reinforcement 20 of the belt line portion 3 will be described. In the belt line portion 3, the peripheral edge portion of the door outer panel 10 is folded inward in the vehicle width direction to form a U shape, and the upper portion of the outer reinforcement 20 is disposed inside the U shape. It is joined. This will be described in detail below.

  As shown in FIGS. 2 and 3, a U-shape that opens downward in the vehicle is formed on the upper portion of the door outer panel 10 that constitutes the belt line portion 3 by folding back inward in the vehicle width direction. The bottom portion of the U shape is the upper end portion 11 of the door outer panel 10.

  A folded portion 12 and a panel side joint portion 13 are disposed opposite to each other below the upper end portion 11 in the vehicle. An outer reinforcement 20 is inserted between the folded portion 12 and the panel side joint portion 13. The folded portion 12 extends downward from the upper end portion 11 and is disposed on the inner side in the vehicle width direction of the outer reinforcement 20.

  The panel side joint portion 13 extends from the upper end portion 11 to the vehicle lower side, and is disposed on the outer side in the vehicle width direction of the outer reinforcement 20. An outward curved portion 14 is provided at the lower end of the panel side joint portion 13. The door outer panel 10 is curved outward in the vehicle width direction by the outward curved portion 14.

  A panel-side separation portion 15 is provided on the panel inner side surface 10 a on the outer side in the vehicle width direction of the outward curved portion 14. The panel side separation portion 15 extends so as to incline downward in the vehicle as it goes outward in the vehicle width direction. A downward bending portion 16 is provided at the lower end of the panel side separation portion 15. A door main surface portion 17 is provided below the lower curved portion 16 in the vehicle.

  The door main surface portion 17 extends downward from the downward curved portion 16 and constitutes the outermost portion of the vehicle door 1. The door outer panel 10 constituting the belt line portion 3 in this example includes an upper end portion 11, a folded portion 12, a panel side joint portion 13, and a panel side separation portion 15.

  Then, the outer reinforcement 20 which comprises the beltline part 3 is demonstrated. The outer reinforcement 20 has a reinforcement side joint portion 22 and a reinforcement side separation portion 25.

  The reinforcement side joint portion 22 is an upper portion of the outer reinforcement 20 and is a plate-like portion extending in the vehicle front-rear direction in a state of projecting upward from the vehicle. The reinforcement side joint portion 22 is joined in a state of being sandwiched between the panel side joint portion 13 of the door outer panel 10 and the folded portion 12.

  As shown in FIGS. 2 and 3, the upper end 21 of the reinforcement-side joint portion 22 has a vehicle shape with respect to the U-shaped bottom surface formed by the folded portion 12 and the panel-side joint portion 13 of the door outer panel 10. It is arranged with a space below.

  An outward bent portion 24 is provided at the lower end of the reinforcement side joint portion 22. The door outer reinforcement 20 is bent outward in the vehicle width direction by an outward bent portion 24. The reinforcement side separation portion 25 is provided on the reinforcement outer side surface 20a on the outer side in the vehicle width direction of the outward bent portion 24.

  The reinforcement side separation portion 25 extends so as to incline downward in the vehicle as it goes outward from the outward bent portion 24 in the vehicle width direction. A lower bent portion 26 is provided at the lower end of the reinforcement side separation portion 25, and a plate-like main portion 27 is provided below the lower bent portion 26 in the vehicle. The main portion 27 extends from the lower bent portion 26 to the lower side of the vehicle, and is disposed at a distance from the door main surface portion 17.

  The distance in the vehicle vertical direction between the reinforcement-side separation portion 25 and the panel-side separation portion 15 increases as it goes outward in the vehicle width direction. In this example, the reinforcement-side separation portion 25 has a larger slope than the panel-side separation portion 15.

  The horizontal distance in the vehicle width direction of the panel side separation portion 15 is longer than the horizontal distance of the reinforcement side separation portion 25. That is, as shown in FIG. 3, the horizontal distance (X) in the vehicle width direction from the upper end portion 11 of the door outer panel 10 to the downward curved portion 16 of the door outer panel 10 is from the upper end portion 11 to the outer reinforcement 20. It is longer than the horizontal distance (Y) to the downward bent portion 26.

  A plurality of protrusions 30 are provided on the inclined surface of the reinforcement-side separation portion 25. The protruding part 30 protrudes from the inclined surface of the reinforcement side separating part 25 toward the panel side separating part 15. In this example, the tip of the protrusion 30 is in contact with the panel side separation portion 15.

  Each protrusion 30 in this example is formed integrally with the reinforcement-side separation portion 25. Thus, since the protrusion part 30 is directly formed in the preform | base_material, the rigidity of the outer reinforcement 20 improves and the effect of a passenger | crew protection improves with respect to the collision from the vehicle body side. Moreover, since the protrusion part 30 can be formed simultaneously when shape | molding the outer reinforcement 20, the man-hour of the production required for formation of the protrusion part 30 can be suppressed.

  In this example, as shown in FIGS. 2 and 3, the protrusion 30 protrudes perpendicularly to the inclined surface, and has a cylindrical shape that protrudes upward in the vehicle width direction. . The plurality of projecting portions 30 are adjacent to the reinforcement-side joining portion 22 and are arranged at intervals from each other in the vehicle front-rear direction (longitudinal direction of the separation portion).

  FIG. 4A shows a cross-sectional shape of the belt line portion 3 when the protruding portion 30 is not provided. On the other hand, when the upper end 21 of the reinforcement-side joint portion 22 rises in the direction indicated by the arrow T during pressing as shown in FIG. 14 or a portion on the outer side in the vehicle width direction may be in contact with the reinforcement side separation portion 25. When such contact occurs, as shown in FIG. 4B, there is a possibility that the blocking portion 38 is formed at a portion on the inner side in the vehicle width direction from the contact portion 35.

  In addition, the broken line of FIG. 4 has shown the amount raised. A lower broken line L1 in FIG. 4 indicates a position where the upper end 21 is normal, and an upper broken line L2 indicates a position where the upper end 21 rises.

  As described above, the closed portion 38 may generate air pockets during electrodeposition coating. In addition, when the closed portion 38 is formed, moisture may be retained in the closed portion 38, particularly in the vicinity of the contact portion 35, so that the panel surfaces 10 a and 20 a may be corroded.

  On the other hand, in this embodiment, as shown in FIG.2 and FIG.3, by providing the protrusion part 30, the panel side junction part 13 and the reinforcement side junction part 22 are joined, and it becomes a mating surface. When forming the joint portion, it is possible to prevent the closing portion 38 from being formed between the panel side separation portion 15 and the reinforcement side separation portion 25 in the belt line portion 3. This is because the plurality of protrusions 30 are arranged at intervals, and the intervals communicate with the space 38a in which the blocking portion 38 may be formed.

  Thereby, the various liquids used for air and degreasing, chemical conversion treatment, and electrodeposition coating at the time of electrodeposition coating at the time of vehicle manufacture are appropriately removed from between the door outer panel 10 and the outer reinforcement 20. Therefore, the electrodeposition coating is spread over the entire area, and the unpainted portion can be suppressed, and the occurrence of air pockets can be suppressed. Therefore, since good electrodeposition coating can be performed, corrosion resistance is improved.

  For example, when the vehicle travels, water W such as rain water or snowmelt water enters the belt line portion 3 between the door outer panel 10 and the outer reinforcement 20 from the outside as indicated by an arrow S in FIG. There is. In FIG. 5, a part of the door outer panel 10 is notched and the outer reinforcement 20 is not covered by the door outer panel 10.

  Even if water permeates in this way, the closed portion 38 is not formed around the joint portions 13 and 22, so that the air easily spreads over the entire space and the water is efficiently drained, so that it is easy to dry. . Therefore, it is possible to suppress water remaining in the space 38a in which the closed portion 38 illustrated in FIG. 3 may be formed, and thus it is possible to suppress the occurrence of rust in the separation portions 15 and 25.

  In this example, the protrusion 30 is provided on the outer reinforcement 20 constituting the belt line portion 3, and the protrusion 30 is formed on the inclined surface of the reinforcement-side separation portion 25. Electrodeposition coating of the belt line portion 3 is more appropriately performed.

  As shown in FIG. 3, a bonding portion 32 to which an adhesive is applied is provided on the bonding surfaces of the panel-side bonding portion 13 and the reinforcement-side bonding portion 22. The bonding portion 32 is provided in a substantially rectangular region extending in the vehicle front-rear direction, and the region is disposed at the rear portion of the joint surface.

  Each protrusion 30 is disposed behind the front end 32 a of the bonding portion 32. In this example, the protruding portion 30 is arranged along the longitudinal direction (vehicle longitudinal direction) of the region of the bonding portion 32.

  With this configuration, even when water such as rainwater enters the joints 13 and 22 from the front of the vehicle body while traveling, the water does not enter the bonding portion 32. As a result, since it can be set as the structure where water cannot enter easily into the separation parts 15 and 25 of the adhesion part 32 below the vehicle, the amount of water entering the separation parts 15 and 25 can be suppressed.

  In this embodiment, since the protrusion part 30 is provided in the position corresponding to the adhesion part 32, it can suppress that the protrusion part 30 is exposed to water. As a result, the occurrence of rust in the protrusion 30 can be suppressed.

  Although the protrusion 30 according to the present invention can be provided in the panel-side separation portion 15, the protrusion 30 of the present embodiment is provided in the reinforcement-side separation portion 25. Since the projection part 30 is provided in the panel side separation part 15, since the influence of an external appearance decreases, a more favorable design can be formed.

  The protruding portion 30 has a cylindrical shape whose axial center protrudes perpendicularly to the inclined surface of the reinforcement-side separation portion 25. Therefore, the upper part of the side surface of the protrusion 30 is formed with a curved surface that curves downward in the vehicle as it goes forward or backward.

  For this reason, it is suppressed that the various liquids used for electrodeposition coating remain in the upper part among the side surfaces of the projecting portion 30, and naturally fall down the vehicle along the curved surface. Therefore, the reuse rate of the various liquids is improved, which further leads to some weight reduction.

  Further, for example, when water enters the belt line portion 3 from the front of the vehicle, the water flows toward the side surface of the protruding portion 30. The water that has flowed from the upper side of the protrusion 30 toward the curved surface naturally flows down the vehicle after the water flows along the curved surface. For this reason, it also becomes possible to suppress that the protrusion part 30 rusts.

  The description of the present embodiment is an example for explaining the present invention, and does not limit the invention described in the claims. Moreover, each part structure of this invention is not restricted to the said embodiment, A various deformation | transformation is possible within the technical scope as described in a claim.

  In the present embodiment, the bonding of the door outer panel 10 and the outer reinforcement 20 is hemming bonding, but is not limited thereto. For example, spot welding bonding, bonding using an adhesive, caulking bonding, or the like may be used. Moreover, in this embodiment, although the protrusion part 30 is arrange | positioned in the vehicle back rather than the front end 32a of the adhesion part 32, it is not restricted to this but can also be arrange | positioned ahead.

  Moreover, the shape of the protrusion 30 of this embodiment is a substantially circular cylindrical shape as shown in FIG. 6A, but is not limited thereto. For example, it may be oval. Further, for example, as shown in FIG. 6B, a cube, a rectangular parallelepiped, or a triangular prism may be used. Furthermore, as shown in FIG.6 (c), the rod shape extended in a vehicle width direction may be sufficient.

  Moreover, in the said embodiment, although the protrusion part 30 is linearly arranged at intervals in the vehicle front-back direction, it is not restricted to this. For example, as shown in FIG. 6 (d), it may be arranged in two rows extending in the vehicle front-rear direction as in a staggered arrangement. Also in this case, each protrusion 30 which constitutes an example may be arranged at an interval in the vehicle front-rear direction.

  Moreover, in this embodiment, although the protrusion part 30 is integrally provided in the reinforcement side separation | separation part 25, it is not restricted to this. For example, a cylindrical member may be attached by welding or the like. Further, the protruding portion 30 may be provided in the panel side separation portion 15.

  Moreover, since the protrusion part 30 should just be made not to form the obstruction | occlusion part 38, the quantity (height of the protrusion part 30) which protrudes is not specifically limited. In the present embodiment, the tip of the protruding portion 30 is in contact with the panel-side separation portion 15, but this is not a limitation, and there may be a gap. Moreover, it does not need to arrange regularly, for example, it is also possible to apply | coat the member on a grain | grain with an adhesive agent etc. and to prevent the obstruction | occlusion part 38 from producing | generating.

  Moreover, although this embodiment demonstrates joining of the door outer panel 10 and the outer reinforcement 20 in the beltline part 3, it is not restricted to this. The present invention can also be applied to the joining of the door outer panel 10 and the door inner panel 4. It can also be applied to the joining of the door inner panel 4 and reinforcement. Furthermore, it is also possible to use the structure for joining at the front, rear or lower part of the vehicle door.

DESCRIPTION OF SYMBOLS 1 Vehicle door 2 Window 3 Belt line part 4 Door inner panel 10 Door outer panel (1st panel)
10a Panel inner surface (first panel surface)
DESCRIPTION OF SYMBOLS 11 Upper end part 12 Folding part 13 Panel side junction part 14 Outer bending part 15 Panel side separation part 16 Lower bending part 17 Door main surface part 20 Outer reinforcement (2nd panel)
20a Reinforcement outer surface (second panel surface)
21 Upper end 22 Reinforcement side joint portion 24 Outward bent portion 25 Reinforcement side separation portion 26 Lower bent portion 27 Main portion 30 Protruding portion 32 Adhesive portion 32a Front end 35 Contact portion 38 Closed portion 38a Space

Claims (6)

A first panel and a second panel constituting a vehicle door are provided, and a first panel surface inside the vehicle width direction of the first panel and a second panel surface outside the vehicle width direction of the second panel are opposed to each other. In the vehicle door structure arranged to
On the peripheral edges of the first panel and the second panel, there is provided a joint where the first panel surface and the second panel surface are joined,
A portion adjacent to the panel center side of the joint portion is provided with a separation portion in which the first panel surface and the second panel surface are arranged in a state of being spaced apart from each other. The distance from the first panel surface to the second panel surface is increased as it goes from the joint to the panel center side.
Of the first panel surface and the second panel surface constituting the separation portion, one panel surface is provided with a plurality of projecting portions projecting toward the other panel surface,
The vehicle door structure according to claim 1, wherein the plurality of protrusions are arranged at intervals in the longitudinal direction of the spacing portion. A belt line portion is configured by the joint portion and the separation portion,
The vehicle door structure according to claim 1, wherein the protruding portion is provided in the separation portion constituting the belt line portion. The spacing portion of the second panel surface is provided with an inclined portion that is inclined inward in the vehicle width direction from the lower end of the joint portion toward the vehicle lower side,
The vehicle door structure according to claim 2, wherein the protruding portion is provided on the inclined portion. The joint portion extends in the vehicle front-rear direction, and a rear portion of the joint portion is provided with an adhesive portion bonded by an adhesive,
4. The vehicle door structure according to claim 1, wherein the protruding portion is disposed behind the front end of the bonding portion. 5.   5. The vehicle door structure according to claim 1, wherein the projecting portion is provided only on the second panel surface constituting the separation portion. 6.   The vehicle door structure according to any one of claims 1 to 5, wherein the projecting portion has a cylindrical shape.

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