JP5772512B2 - Car side door structure - Google Patents

Description

  The present invention relates to a side door structure in which outer reinforcement is provided along a door belt line in a side door main body of an automobile.

  In the rear door structure of an automobile shown in Patent Document 1 below, beltline reinforcement is provided along the beltline portion at the upper end of the outer panel. The belt line reinforcement has a ridge line extending in the vehicle front-rear direction, and is given rigidity by the ridge line. In addition, a portion with low rigidity is provided on the front side of the beltline reinforcement, and the beltline reinforcement is locally bent at the portion with low rigidity at the time of a side collision. As a result, the amount of deformation of the beltline reinforcement toward the vehicle interior side in the region of the seating position of the rear seat is reduced, and a living space for the rear seat occupant is secured.

JP 2009-132302 A

  In the belt line reinforcement (outer reinforcement) as described above, wiring and assembly holes are often formed. Further, in the belt line portion of the side door, the space from the door outer panel to the door inner panel is narrow, and a door glass is disposed between the two, so that the space is limited. For this reason, it is difficult to provide a ridge line (bead) having a sufficient length and a vertical width in the outer reinforcement, and the rigidity of the bead may be lowered or the bead shape may be interrupted. In such a case, a broken line may be generated in the bead itself due to a load at the time of a side collision, or a broken line may be generated at a location where the bead is interrupted, and the outer reinforcement may not be bent at a target position.

  In view of the above facts, the present invention has an object to obtain a side door structure for an automobile capable of improving the bending rigidity of outer reinforcement in a desired region along the vehicle longitudinal direction.

The side door structure of the automobile according to the invention described in claim 1 is provided with a side door main body portion having a door outer panel and a door inner panel, and provided in the side door main body portion along a door belt line. coupled, and has a vertical wall extending in the vehicle vertical direction, the upper flange portion of the reinforcing portion is formed by a region of substantially all parts along the longitudinal direction of the vehicle at the upper edge portion is bent to the inside in the vehicle width direction, The upper flange portion extends from the upper end of the vertical wall , and includes an outer reinforcement in which an angle formed by the upper flange portion and the vertical wall is set to be less than 90 degrees .

The vehicle side door structure according to claim 1, the outer reinforcement, the upper as a reinforcing portion by the area of the substantially entire part along the vehicle longitudinal direction at the upper edge portion is bent toward the vehicle width direction inner side A flange portion is provided. Here, since there is little need to form wiring or an assembly hole at the upper edge of the outer reinforcement, the upper flange as a reinforcing portion is provided in a desired region along the vehicle longitudinal direction of the outer reinforcement. part can be provided. Therefore, the bending rigidity of the outer reinforcement can be improved in a desired region along the vehicle longitudinal direction.
Moreover, the angle formed by the upper flange portion and the vertical wall of the outer reinforcement is set to be less than 90 degrees. For this reason, when the outer reinforcement tends to bend due to the load of the side collision, the upper flange portion tends to bend in a direction overlapping the vertical wall of the outer reinforcement. As a result, when the upper flange portion is bent so as to overlap the vertical wall of the outer reinforcement, the cross-sectional width of the region where the upper flange portion is provided on the upper edge side of the outer reinforcement is doubled. Thereby, the bending rigidity of the outer reinforcement in the said area | region is securable. Even when the angle formed above is set to 0 degrees, the sectional width of the region provided with the upper flange portion on the upper edge side of the outer reinforcement is doubled, so that the same effect is obtained. be able to. Moreover, in this invention, since the upper side flange part is bend | folded to the side which approaches the vertical wall of an outer reinforcement, the arrangement | positioning space of the upper side flange part along a vehicle width direction can be set small. Thereby, it can suppress that arrangement space, such as a door glass, is eroded unnecessarily.
The side door structure for an automobile according to a second aspect of the invention is the side door structure for an automobile according to the first aspect, wherein the outer reinforcement is at least a part of the lower edge portion along the vehicle front-rear direction. Has a reinforcing portion formed by being bent toward one side in the vehicle width direction.

According to a third aspect of the present invention, there is provided the side door structure for an automobile according to the first aspect, wherein the outer reinforcement has a hanging wall extending downward of the vehicle, The reinforcing portion formed on the lower edge portion is a lower flange extending from the lower end of the hanging wall, and an angle formed by the lower flange portion and the hanging wall is set to 90 degrees or less.

In the side door structure for an automobile according to claim 3 , at least a part of the lower edge portion of the outer reinforcement along the vehicle front-rear direction is bent toward one side in the vehicle width direction, whereby a lower flange portion is formed. Yes. An angle formed by the lower flange portion and the main body portion of the outer reinforcement is set to 90 degrees or less. Here, when the angle formed is set to 90 degrees, it is possible to effectively improve the bending rigidity of the region provided with the lower flange portion on the lower edge side of the outer reinforcement. On the other hand, when the angle formed is less than 90 degrees, when the outer reinforcement tries to bend due to a side collision load, the lower flange portion tends to bend in a direction overlapping the hanging wall of the outer reinforcement. . As a result, when the lower flange portion is bent so as to overlap the hanging wall of the outer reinforcement, the cross-sectional width of the region where the lower flange portion is provided on the lower edge side of the outer reinforcement is doubled. Thereby, the bending rigidity of the outer reinforcement in the said area | region is securable. Even when the angle formed above is set to 0 degree, the cross-sectional width of the region where the lower flange portion on the lower edge portion side of the outer reinforcement is doubled. Can be obtained.

The side door structure for an automobile according to the invention described in claim 4 is the vehicle side door structure according to any one of claims 1 to 3 , wherein an upper edge portion of the door outer panel in the door belt line is provided. Is coupled to the upper flange portion and is bent inward in the vehicle width direction together with the upper flange portion.

  In the side door structure for an automobile according to claim 4, the upper edge portion of the door outer panel in the door belt line of the side door main body portion is coupled to the upper flange portion of the outer reinforcement, together with the upper flange portion in the vehicle width direction. It is bent inward. Thereby, the cross-sectional width of the region where the upper flange portion is provided can be further increased.

According to a fifth aspect of the present invention, there is provided the side door structure for an automobile according to the second aspect , wherein the reinforcing portion formed at the lower edge of the outer reinforcement is arranged in the vehicle longitudinal direction. An extended closed section is formed.

In the side door structure for an automobile according to the fifth aspect, the lower edge portion of the outer reinforcement is bent to form a closed cross-sectional reinforcing portion extending in the vehicle front-rear direction. Thus, since the reinforcement part forms the closed cross section, the bending rigidity of outer reinforcement can be effectively improved in the area | region in which the said reinforcement part was provided.

The side door structure for an automobile according to the invention described in claim 6 is the side door structure for an automobile according to any one of claims 1 to 5, wherein the reinforcing portion is a bending rigidity of the outer reinforcement. so it decreases in said side door main body portion in the vehicle longitudinal fold is set on the front side of the vehicle than the direction central portion bent scheduled portion, the vehicle front side of the front Symbol bending portion and the vehicle longitudinal direction at the vehicle rear side It is extended.

In the side door structure for an automobile according to the sixth aspect, the reinforcement portion of the outer reinforcement extends in the vehicle front-rear direction on the vehicle front side and the vehicle rear side of the bent portion of the outer reinforcement. As a result, the bending rigidity of the outer reinforcement is reduced in the above-described bent portion. The portion to be bent is set at a position farther from the front side of the vehicle than the center in the vehicle front-rear direction of the side door main body, that is, away from the chest of the passenger seated on the vehicle seat. Thereby, it is possible to prevent or effectively suppress the outer reinforcement from being bent at the side of the chest of the occupant during a side collision.

  As described above, in the side door structure for an automobile according to the present invention, the bending rigidity of the outer reinforcement can be improved in a desired region along the vehicle longitudinal direction.

1 is a side view of an automobile configured by applying an automobile side door structure according to an embodiment of the present invention. FIG. 2 is an enlarged longitudinal sectional view showing a cut surface along line 2-2 in FIG. 1. It is a perspective view which shows the structure of the door inner panel of the front side door main-body part shown by FIG. 1, inner reinforcement, and outer reinforcement. It is a schematic perspective view for demonstrating the condition at the time of the lower flange part of the outer reinforcement which concerns on embodiment of this invention bending further to the main-body part side by the load of a side collision, (A) is folding. The state before bending is shown, and (B) shows the state after bending. It is a longitudinal cross-sectional view corresponding to FIG. 2 which shows the modification of embodiment of this invention.

  Hereinafter, a side door structure 10 for an automobile according to an embodiment of the present invention (hereinafter, simply referred to as “side door structure 10”) will be described with reference to FIGS. In the figure, the arrow FR indicates the front of the vehicle, the arrow UP indicates the upper side of the vehicle, and the arrow IN indicates the inner side in the vehicle width direction.

<Configuration>
FIG. 1 shows a side view of an automobile 12 configured by applying a side door structure 10 according to the present embodiment. The automobile 12 includes a front side door main body 16 (hereinafter simply referred to as a “side door main body 16”) as a side door main body that can open and close a passenger opening 14 that is formed on a side of the vehicle body. I have. In addition, the direction about the side door main-body part 16 described in the following description is a direction in the state in which the door opening 14 was closed by the side door main-body part 16.

  As shown in FIG. 2, the side door main body 16 includes a door inner panel 18 and a door outer panel 20 disposed on the outer side in the vehicle width direction of the door inner panel 18. The door inner panel 18 and the door outer panel 20 are joined at their peripheral portions by hemming, thereby forming a hollow side door main body portion 16. A glass opening 24 through which the door glass 22 (see FIG. 1) is inserted is formed at the upper end of the door belt line 21 of the side door main body 16.

  Further, an inner reinforcement 26 (belt line inner reinforcement) and an outer reinforcement 28 (belt line outer reinforcement) are arranged in the side door main body 16. The inner reinforcement 26 and the outer reinforcement 28 are formed into a long shape by pressing a sheet metal material (here, a steel plate), along the door belt line 21 of the side door main body 16 ( The longitudinal direction is arranged along the vehicle front-rear direction (see FIG. 3). In the inner reinforcement 26 and the outer reinforcement 28, each front end portion reaches the vicinity of the front pillar 30, and each rear end portion reaches the vicinity of the center pillar 32.

  The inner reinforcement 26 is formed in a substantially hat shape with a vertical cross-sectional shape viewed from the vehicle front-rear direction opened in the vehicle width direction outer side, the upper flange portion 26A is coupled to the upper edge portion of the door inner panel 18, and the lower The side flange portion 26 </ b> B is coupled to the middle portion in the vertical direction of the door inner panel 18. A bead 26C bulging inward in the vehicle width direction extends along the vehicle longitudinal direction at the center in the vertical direction of the inner reinforcement 26, and the bead 26C improves the bending rigidity of the inner reinforcement 26. ing. The inner reinforcement 26 has a front end portion and a rear end portion coupled to a front end portion and a rear end portion of the door inner panel 18, and the door inner panel 18 is reinforced by the inner reinforcement 26.

  The outer reinforcement 28 includes a main body 28A having a vertical cross-sectional shape viewed from the vehicle front-rear direction and formed in a substantially crank shape. The main body 28A includes a vertical wall 28A1 extending in the vehicle vertical direction, an outward extending wall 28A2 extending outward from the lower end of the vertical wall 28A1, and an outer end in the vehicle width direction of the outward extending wall 28A2. And a hanging wall 28A3 extending downward from the vehicle.

The upper edge portion of the outer reinforcement 28 is bent inward in the vehicle width direction around a bending center line extending in the vehicle front-rear direction in a substantially entire region along the vehicle front-rear direction (a region excluding the planned bending portion 34 described later). It has been. Thereby, an upper flange portion 28 </ b> B as a reinforcing portion is formed at the upper edge portion of the outer reinforcement 28. A flange portion 20A provided on the upper edge portion of the door outer panel 20 is overlaid on the upper flange portion 28B from above. This flange portion 20A, the tip end is coupled to the upper flange portion 28B by hemming, it is bent to the inside in the vehicle width direction together with the upper flange portion 28B. That is, in the present embodiment, the upper edge portion of the outer reinforcement 28 and the upper edge portion of the door outer panel 20 are overlapped and joined by hemming, and the overlapped portion is bent inward in the vehicle width direction. Thus, the upper flange portion 28B and the flange portion 20A are formed. In this embodiment, the angle θ1 formed by the upper flange portion 28B and the flange portion 20A and the main body portion 28A (vertical wall 28A1) is set within a range of 0 ° to 45 ° (0 ° or an acute angle). (In FIGS. 2 and 3, the case where the formed angle θ1 is set to an acute angle is shown). That is, the upper flange portion 28B extends from the upper end of the vertical wall 28A1 (main body portion 28A) toward the vehicle lower side or the vehicle width direction inner side and the vehicle lower side.

  A pair of upper and lower beads 28 </ b> C and 28 </ b> D bulging outward in the vehicle width direction are formed at the middle in the vertical direction of the vertical wall 28 </ b> A <b> 1. These beads 28 </ b> C and 28 </ b> D are formed in a substantially U-shaped cross section with an inner side in the vehicle width direction opened, and extend along the vehicle front-rear direction. Thus, a plurality of ridge lines extending in the vehicle front-rear direction are formed on the vertical wall 28A1, and the bending rigidity of the vertical wall 28A1 (main body portion 28A) is improved by these ridge lines. A ridge line extending in the vehicle front-rear direction is also formed between the vertical wall 28A1 and the outward extension wall 28A2 and between the outward extension wall 28A2 and the hanging wall 28A3. The bending rigidity of 28A is improved. In the present embodiment, the hanging wall 28A3 is spaced apart from the door outer panel 20, and a gap is formed between the hanging wall 28A3 and the door outer panel 20, but the hanging wall 28A3 and the door The outer panel 20 may be bonded to each other via a resin member or the like.

  The lower edge portion of the outer reinforcement 28 is bent inward in the vehicle width direction around a bending center line extending in the vehicle front-rear direction in a substantially entire region along the vehicle front-rear direction (a region excluding the planned bending portion 34 described later). It has been. As a result, a lower flange portion 28 </ b> E as a reinforcing portion is formed at the lower edge portion of the outer reinforcement 28. In this embodiment, the angle θ2 formed by the lower flange portion 28E and the main body portion 28A (the hanging wall 28A3) is set within a range of 45 to 90 degrees (an acute angle or a right angle) (see FIG. 2 and FIG. 2). FIG. 3 shows a case where the angle θ2 formed is set to an acute angle). That is, the lower flange portion 28E extends from the lower end of the hanging wall 28A3 toward the vehicle width direction inward or the vehicle width direction inner side and the vehicle upper side.

  The above-described outer reinforcement 28 has a front end portion and a rear end portion coupled to a front end portion and a rear end portion of the door outer panel 20, and the door outer panel 20 is reinforced by the outer reinforcement 28. However, a bent portion 34 (weakening portion) is set on the front portion side of the outer reinforcement 28, and the bending rigidity of the outer reinforcement 28 is reduced in the bent portion 34.

  Specifically, as shown in FIG. 3, a cutout portion 36 and a cutout portion 38 are formed in the upper flange portion 28B and the lower flange portion 28E on the front portion side of the outer reinforcement 28. In the part where the notches 36 and 38 are formed, the upper flange portion 28B and the lower flange portion 28E are not provided. These notches 36 and 38 are formed side by side in the vertical direction of the vehicle, and the outer reinforcement 28 has a vertical section passing through the notches 36 and 38 to be a bent portion 34. The bent portion 34 is disposed on the vehicle front side of the side door main body 16 in the vehicle front-rear direction center. Specifically, the front seat (vehicle seat) (not shown) provided in the automobile 12 is adjusted to the front end in the slidable range of the front / rear position adjustment mechanism (seat slide mechanism) (so-called front most state). The configuration is such that the planned bending portion 34 is positioned on the front side of the vehicle with respect to the chest of the passenger seated on the front seat. The upper flange portion 28B and the lower flange portion 28E extend in the vehicle front-rear direction on the vehicle front side and the vehicle rear side of the planned bending portion 34. That is, in this outer reinforcement 28, regardless of the position of the front seat before and after the front seat relative to the vehicle body, the upper flange is located in the region located on the side of the chest of the occupant seated on the front seat (outward in the vehicle width direction). The portion 28B and the lower flange portion 28E are provided.

<Action and effect>
Next, the operation and effect of this embodiment will be described.

  In the side door structure 10 having the above-described configuration, the upper and lower edges of the outer reinforcement 28 are bent inward in the vehicle width direction in a region excluding the planned bending portion 34, so that the outer reinforcement 28 has an upper flange portion 28 </ b> B and a lower portion. A side flange portion 28E is provided. Here, the upper and lower edges of the outer reinforcement 28 need not be formed with wiring or assembly holes, so that the upper flange portion is formed at a desired location along the vehicle longitudinal direction of the outer reinforcement 28. 28B and the lower flange portion 28E can be set. Thereby, the bending rigidity of the outer reinforcement 28 can be easily improved in a desired region. Therefore, when the side collision load F (see FIG. 2) is input to the outer reinforcement 28, it is possible to prevent or effectively suppress the outer reinforcement 28 from being bent inadvertently at an unplanned location. The outer reinforcement 28 can be bent as intended in the planned bending portion 34.

  In addition, since the above-described bending portion 34 is provided on the vehicle front side of the vehicle front-rear direction center portion of the side door main body portion 16, the outer reinforcement 28 is located in a region located on the side of the chest of the occupant. Bending can be prevented or effectively suppressed.

  In addition, when the upper and lower edges of the outer reinforcement 28 are not reinforced, the upper and lower edges may be bent carelessly at a place where the upper and lower edges are not planned, and the bent line may propagate to the main body 28A side. . Such bending is difficult to be suppressed by the beads 28C and 28D formed in the main body 28A, but in this embodiment, the upper flange 28B and the lower flange 28E cause inadvertent bending as described above. Can be suppressed.

  In the present embodiment, the angle θ2 formed by the lower flange portion 28E and the hanging wall 28A3 of the main body portion 28A is set within a range of 45 degrees to 90 degrees. When the angle θ2 formed is set to 90 degrees (right angle), the lower flange portion 28E extends in the direction of the side collision load F (in parallel with the load F), so the lower edge portion of the outer reinforcement 28 The bending rigidity of the region where the lower flange portion 28E on the side is provided can be effectively improved, and the side collision load F can be favorably supported by the lower flange portion 28E. Therefore, the bending rigidity of the outer reinforcement 28 can be effectively improved in the region where the lower flange portion 28E is provided.

  On the other hand, as shown in FIG. 4A, when the angle θ2 formed is set within a range of 45 degrees or more and less than 90 degrees (acute angle), the beads 28C and 28D are bent by the load F. Then, the lower flange portion 28E tends to bend in a direction overlapping the hanging wall 28A3 of the main body portion 28A (see arrow T in FIG. 4A). For this reason, even if the beads 28C and 28D are bent, as shown in FIG. 4B, the lower flange portion 28E in the outer reinforcement 28 is formed by the lower flange portion 28E overlapping the hanging wall 28A3. The sectional width of the provided region is doubled. Thereby, it is possible to prevent or effectively suppress the outer reinforcement 28 from being bent inadvertently in the region (a part of the outer reinforcement 28 is shown in FIGS. 4A and 4B). Is schematically described).

  Similarly, in the present embodiment, the angle θ1 formed by the upper flange portion 28B and the vertical wall 28A1 of the main body portion 28A is set within a range of 0 degrees to 45 degrees. When the angle θ1 formed is set within a range of greater than 0 degree and less than 45 degrees (acute angle), when the beads 28C and 28D are bent by the load F, the upper flange portion 28B It tries to bend in the direction that overlaps 28A1. For this reason, even if the beads 28C and 28D are bent, the upper flange portion 28B overlaps the vertical wall 28A1, thereby doubling the cross-sectional width of the region where the upper flange portion 28B is provided in the outer reinforcement 28. Thereby, it is possible to prevent or effectively suppress the outer reinforcement 28 from being carelessly bent in the region.

  On the other hand, even when the angle θ1 formed is set to 0 degrees, that is, when the upper flange portion 28B extends in advance along the vertical wall 28A1, the region where the upper flange portion 28B is provided in the outer reinforcement 28. Therefore, the outer reinforcement 28 can be prevented from being bent inadvertently or effectively suppressed in the region.

  Moreover, in the present embodiment, the flange portion 20A provided at the upper edge portion of the door outer panel 20 is coupled to the upper flange portion 28B of the outer reinforcement 28, and is bent inward in the vehicle width direction together with the upper flange portion 28B. It has been. Thereby, since the cross-sectional width of the area | region in which the upper side flange part 28B was provided can be increased further, the careless bending of the outer reinforcement 28 can be prevented or suppressed more satisfactorily.

  Furthermore, in this embodiment, since the upper flange portion 28B is bent toward the side approaching the vertical wall 28A1, the arrangement space of the upper flange portion 28B along the vehicle width direction can be set small. Thereby, it can suppress that the arrangement | positioning space of the door glass 22 in the glass opening 24 is eroded unnecessarily.

  In the present embodiment, since the rigidity of the beads 28C and 28D can be supplemented by the upper flange portion 28B and the lower flange portion 28E, the shapes of the beads 28C and 28D can be simplified. Thereby, design and manufacture of the outer reinforcement 28 can be facilitated, and as a result, the cost of the outer reinforcement 28 can be reduced.

<Supplementary explanation of the embodiment>
In the above embodiment, the case where the upper flange portion 28B and the lower flange portion 28E are the reinforcing portions has been described. However, the invention according to claim 1 and claim 2 is not limited thereto, and the lower edge of the outer reinforcement 28 is provided. The configuration (shape) of the reinforcing portion formed in the portion can be changed as appropriate. For example, a cylindrical reinforcing portion 28F may be formed by bending the lower edge portion of the outer reinforcement 28 as in a side door structure 10 ′ (modified example) shown in FIG. Since the reinforcing portion 28F forms a closed cross section extending in the vehicle front-rear direction, it is possible to effectively improve the bending rigidity on the lower edge portion side of the outer reinforcement 28 in the region where the reinforcing portion 28F is provided. can Ru.

  Moreover, in the said embodiment, although the lower flange part 28E was made into the structure bent by the vehicle width direction inner side, the invention which concerns on Claims 1-6 is not restricted to this, A lower flange part is a vehicle width direction. You may make it the structure bent outward. In this case, a closed section extending in the vehicle front-rear direction is formed by the outer reinforcement and the door outer panel when the door outer panel comes into contact with the tip of the lower flange portion due to a side collision load. Thereby, bending of the door belt line can be prevented or effectively suppressed.

In the above-described embodiment, the upper flange portion 28B and the lower flange portion 28E are formed in the entire region except the planned bending portion 34 at the upper and lower edges of the outer reinforcement 28. The invention according to the fifth aspect is not limited thereto , and the lower flange portion 28E may not be formed on the vehicle front side of the planned bending portion 34 (notches 36, 38). Even in this case, since the cross-sectional area of the outer reinforcement 28 sharply decreases in the planned bending portion 34, the outer reinforcement 28 can be bent at the planned bending portion 34.

  Moreover, in the said embodiment, angle (theta) 1 which upper side flange part 28B and vertical wall 28A1 (main-body part 28A) make is set in the range of 0 degree-45 degree | times, and lower side flange part 28E and drooping wall 28A3 (main-body part) 28A), the angle θ2 is set in the range of 45 ° to 90 °. However, the invention according to claims 1 to 4 is not limited thereto, and the upper flange portion and the outer reinforcement main body are not limited thereto. The angle between the lower flange portion and the outer reinforcement main body portion only needs to be set to 90 degrees or less.

  Moreover, in the said embodiment, although the upper edge part (flange part 20A) in the door belt line 21 of the door outer panel 20 was bend | folded inside the vehicle width direction with the upper side flange part 28B of the outer reinforcement 28, it is set as the claim. The invention which concerns on Claims 1-3 is not restricted to this, The upper edge part in the door belt line of a door outer panel is not bend | folded inside a vehicle width direction with the upper side flange part of an outer reinforcement, The main-body part of an outer reinforcement You may make it the structure joined to the side.

Moreover, in the said embodiment, although it was set as the structure by which the reinforcement part (the upper side flange part 28B, the lower side flange part 28E) was provided in both the upper and lower edge parts of the outer reinforcement 28, the invention which concerns on Claim 1 is this. However, the reinforcing portion is not limited to the above, and may be provided at the upper edge portion of the outer reinforcement.

  Moreover, although the said embodiment demonstrated the case where this invention was applied with respect to the front side door of the motor vehicle 12, this invention is applicable also to the rear side door of a motor vehicle.

  In addition, the present invention can be implemented with various modifications without departing from the scope of the invention. Needless to say, the scope of rights of the present invention is not limited to the above embodiment.

10 Car side door structure 16 Front side door body (side door body)
20 Door Outer Panel 21 Door Belt Line 28 Outer Reinforcement 28A Main Body 28B Upper Flange 28E Lower Flange 34

Claims (6)

A side door main body having a door outer panel and a door inner panel;
Wherein the side door body portion is provided along a door belt line, coupled to said door outer panel, the vertical direction of the vehicle and has a vertical wall extending, regions of substantially all parts along the longitudinal direction of the vehicle at the upper edge is the vehicle An upper flange portion as a reinforcing portion is formed by bending inward in the width direction , the upper flange portion extends from the upper end of the vertical wall, and an angle formed by the upper flange portion and the vertical wall is less than 90 degrees. Outer reinforcement set in
Side door structure of a car equipped with The side door structure for an automobile according to claim 1, wherein the outer reinforcement has a reinforcing portion formed by bending at least a part of the lower edge portion along the vehicle longitudinal direction toward one side in the vehicle width direction. . The outer reinforcement has a hanging wall extending downward in the vehicle, and the reinforcing portion formed on the lower edge of the outer reinforcement is a lower flange extending from a lower end of the hanging wall, and the lower flange The side door structure for an automobile according to claim 2 , wherein an angle formed by the portion and the hanging wall is set to 90 degrees or less . Upper edge of the door outer panel in the door belt line, according to the coupled to the upper flange portion, any one of claims 1 to 3 which is bent to the inside in the vehicle width direction together with the upper flange portion Automobile side door structure. The side door structure for an automobile according to claim 2 , wherein the reinforcing portion formed at the lower edge portion of the outer reinforcement forms a closed cross section extending in the vehicle front-rear direction. The reinforcing portion such that said bending stiffness of the outer reinforcement is reduced by said side door main body portion in the vehicle longitudinal fold is set on the front side of the vehicle than the direction central portion bent scheduled portion, before Symbol bending portion The side door structure for an automobile according to any one of claims 1 to 5, which extends in a vehicle front-rear direction on a vehicle front side and a vehicle rear side.

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