JP2022149500A - Vehicle side door structure - Google Patents

Abstract

To enhance rigidity of a side door to enhance stability of the door being opened.SOLUTION: A vehicle side door structure is provided with a swing arm that connects a door inner panel 10 to a vehicle body. A front end part of the door inner panel 10 is provided with a front-side latch mounting part 15A, and a rear end part thereof is with provided a rear-side latch mounting part 15B. The door inner panel 10 is provided with a belt line part 14. A front-side reinforcement 21 extending in a vertical direction is joined to a front part of the door inner panel 10. A lower part of the front-side reinforcement 21 is arranged below the door inner panel 10 and an upper part thereof is arranged in the belt line part 14.SELECTED DRAWING: Figure 3

Description

The present invention relates to a vehicle side door structure.

A side door attached to the side of the vehicle so that the door opening provided on the side of the vehicle can be opened and closed, for example, as disclosed in Patent Document 1, the side door extends parallel to the outside in the vehicle width direction. A structure that opens and closes by protruding and moving in the front-rear direction is known. Such a side door structure is called a glide sliding door or a sliding door because it is spaced apart from the vehicle body and moves smoothly in the air.

In addition, a front latch and a rear latch that can be manually operated by a door handle or the like are provided at the front and rear of the side door. The front latch of the side door engages a striker on the front edge of the door opening of the vehicle body, and the rear latch engages a striker on the rear edge of the door opening. Also, the side door of this example is connected to the rear edge of the door opening via a swing arm having a link member.

JP 2007-177587 A

In the configuration as in the above example, when the side door is open, it is supported by the vehicle body via the link member. There is a need. When trying to improve the rigidity of the link member, the size of the link member increases the weight.

On the other hand, if the rigidity of the link member cannot be sufficiently ensured, the upper portion of the side door deforms toward the outside of the vehicle in the event of a side collision (side collision), thereby increasing the distance between the side portion of the vehicle body and the upper portion of the side door. there is a possibility. For example, when a side collision or the like occurs, a load loaded on the vehicle moves relative to the vehicle body due to inertial force or the like. At that time, the load pushes the side door from the inside of the vehicle to the outside, and there is a possibility that the side door will be deformed so that the distance between the side portion of the vehicle body and the upper portion of the side door is increased. If such deformation occurs, the load can be ejected outside the vehicle. For this reason, in the configuration of the above example, there is room for improvement in suppressing deformation of the side door.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a vehicle side door structure capable of improving the rigidity of the side door and improving the stability when the side door is open. to provide.

A vehicle side door structure according to the present invention for achieving the above object has a door outer panel and a door inner panel provided on the vehicle inner side of the door outer panel. A swing arm that connects the door inner panel and the vehicle body is provided at the portion, a front latch mounting portion is provided at the front end portion of the door inner panel, and a rear latch attachment portion is provided at the rear end portion of the door inner panel. Side latch attachments are provided. In the structure of the vehicle side door, the front latch attachment portion is arranged below the vehicle relative to the rear latch attachment portion, and the door inner panel is provided with a beltline portion extending in the vehicle front-rear direction, A front reinforcement extending in the vertical direction of the vehicle is joined to a front portion of the door inner panel, a lower portion of the front reinforcement is arranged at a lower portion of the door inner panel, and an upper portion of the front reinforcement is , are arranged in the belt line portion.

According to the present invention, it is possible to improve the rigidity of the side door and further improve the stability when the side door is open.

It is a side view showing one embodiment of the structure of the vehicle side door concerning the present invention. It is the side view which looked at the side door of FIG. 1 from the vehicle outer side. It is a side view which shows the state which removed the beltline reinforcement of FIG. It is the perspective view which looked at the side door of FIG. 3 from the vehicle rear. 4 is a cross-sectional view taken along line AA of FIG. 3; FIG. 5 is a cross-sectional view taken along line BB of FIG. 4; FIG. 2 is a top view when the side door of FIG. 1 is open; FIG.

An embodiment of the structure of a vehicle side door 1 of a vehicle according to the present invention will be described below with reference to the drawings (FIGS. 1 to 7). In the drawings, the direction of arrow Fr indicates the front in the longitudinal direction of the vehicle. "Front part (front end) and rear part (rear end)" in the description of the embodiment correspond to the front part and the rear part in the longitudinal direction of the vehicle. Arrow In indicates the vehicle width direction inner side (vehicle inner side), and arrow Out indicates the vehicle width direction outer side (vehicle outer side).

The side door 1 of this embodiment is a side door 1 having a so-called gliding sliding door structure in which the side door 1 protrudes parallel to the outside in the vehicle width direction and is opened and closed by moving in the front-rear direction. The side door 1 is rotatably connected to a vehicle body side portion by a swing arm 16 so as to open and close a door opening 2 provided on the vehicle body side portion. When the side door 1 opens and closes the door opening 2, the side door 1 maintains the direction of the closed state and moves to the rear of the vehicle while moving to the outside of the vehicle. That is, when the side door 1 is opened and closed, the side door 1 is opened and closed while maintaining the state of being extended in the longitudinal direction of the vehicle. The opening/closing operation of the side door 1 will be described later.

As shown in FIG. 1, the side door 1 of this embodiment is configured to be able to open and close a door opening 2 provided on the side of the vehicle body. A center pillar 5 extending in the vertical direction of the vehicle is arranged in front of the door opening 2 , and a quarter pillar 6 is arranged in the rear of the door opening 2 . The quarter pillar 6 as a whole extends in the vertical direction of the vehicle, and has a convex shape that projects rearward of the vehicle at an intermediate portion in the vertical direction of the vehicle. A side sill 7 extending in the longitudinal direction of the vehicle is arranged below the door opening 2 . Further, when the door is opened, there is a space S2 between the side door 1 and the side sill 7, as shown in FIG. That is, the side sill 7 is provided below the door opening 2 provided on the side of the vehicle body. , from the front end to the rear end of the door opening 2 so as to be continuous in the vehicle front-rear direction. The side door 1 of this embodiment is supported by a swing arm 16 with respect to the vehicle body.

The side door 1 is a type side door 1 having a door sash, and includes a door inner panel 10 forming a main body of the side door 1 and a door outer panel 31 joined to the outer side of the vehicle of the door inner panel 10. have. The side door 1 also has a swing arm 16 that is connected to the inner side of the door inner panel 10 . Further, the side door 1 includes a front door latch 30A, a rear door latch 30B, a front reinforcement 21, a rear reinforcement 23, a first center member 25, a second center member 28, and a beltline ring. a force 18;

First, the structure of the door inner panel 10 will be described. The door inner panel 10 has an outer peripheral shape corresponding to the shape of the door opening 2 . A beltline portion 14 is provided in the middle portion of the door inner panel 10 in the vehicle vertical direction, and a door sash and a window opening 12 are provided on the vehicle upper side of the beltline portion 14 . The beltline portion 14 extends in the vehicle front-rear direction between the front end and the rear end of the door inner panel 10 . Of the door sashes, the front sash 11A positioned on the front side extends upward from the front portion of the beltline portion 14 of the vehicle. Of the door sashes, the rear sash 11B located on the rear side extends obliquely forward of the vehicle from the rear portion of the beltline portion 14 toward the upper side of the vehicle. A door sash including the front sash 11A and the rear sash 11B constitutes the window frame of the window opening 12. As shown in FIG.

The vehicle lower side of the window opening 12 has a main wall portion 10a facing the outside of the vehicle, a rear wall portion 10b facing the rear of the vehicle, and a front wall portion 10d. In this example, the rear wall portion 10b protrudes from the rear end of the main wall portion 10a to the outside of the vehicle, extends in the vertical direction of the vehicle, and is substantially orthogonal to the main wall portion 10a. The front wall portion 10d protrudes outward from the vehicle from the rear end of the main wall portion 10a and extends in the vertical direction of the vehicle. The main wall portion 10a is provided with a lower opening portion 13 that communicates the outside and the inside of the vehicle.

A portion of the beltline portion 14 on the vehicle lower side of the rear portion of the door inner panel 10 extends downward from the beltline portion 14 to a predetermined position, and is inclined forward of the vehicle as it goes downward from the predetermined position. It extends to the bottom of the inner panel 10 . That is, the rear portion of the door inner panel 10 is formed such that the middle portion in the vertical direction of the vehicle protrudes rearward of the vehicle. The protruding shape approximately corresponds to the shape of the rear portion of the door opening 2 .

A front latch attachment portion 15A is provided at the front portion of the door inner panel 10, and a rear latch attachment portion 15B is provided at the rear portion of the door inner panel 10. As shown in FIG. The front latch mounting portion 15A and the rear latch mounting portion 15B are arranged so that their positions are different from each other in the vertical direction of the vehicle. In this example, the front latch mounting portion 15A is arranged on the vehicle lower side than the rear latch mounting portion 15B.

The front latch attachment portion 15A is provided at the front end portion of the door inner panel 10 . In the present embodiment, the front latch attachment portion 15A is provided so as to be continuous with the middle portion in the vehicle vertical direction of the front wall portion 10d of the door inner panel 10 and the front end of the main wall portion 10a. The front latch mounting portion 15A includes a long hole 15Aa formed at a corner formed by the front wall portion 10d and the main wall portion 10a, and a plurality of round through holes 15Ab provided around the long hole 15Aa. and have The front latch mounting portion 15A is arranged slightly below the center of the front edge of the lower opening 13 in the vertical direction of the vehicle. In FIGS. 2 and 3, the position of the front latch mounting portion 15A is indicated by vertical broken lines.

In addition, the front latch mounting portion 15A has a convex shape that projects toward the inside of the vehicle with respect to the beltline portion 14 and the lower portion of the door inner panel 10 . The convex shape and the top (vehicle inner end) extend in the vertical direction of the vehicle as shown in FIG. The upper and lower ends of the front door latch 15A are arranged so as to substantially correspond to the upper and lower ends of the convex apex.

On the other hand, the rear latch mounting portion 15B is provided at the rear end portions of the door inner panel 10 and the beltline portion 14, and is formed in a substantially rectangular region extending in the vertical direction of the vehicle. The rear latch mounting portion 15B of the present embodiment is arranged so as to overlap the beltline portion 14 as viewed in the vehicle width direction. Specifically, it is provided on the rear wall portion 10 b of the door inner panel 10 . The rear wall portion 10 b in this example also includes the rear end of the beltline portion 14 . The upper portion of the rear latch mounting portion 15B is arranged so as to overlap the rear end portion of the beltline portion 14, and the lower portion of the rear latch mounting portion 15B is arranged on the upper portion of the rear wall portion 10b. In FIGS. 2 and 3, the position of the rear latch mounting portion 15B is indicated by vertical broken lines.

Next, the front reinforcement 21 will be described. As shown in FIGS. 2 and 3, the front reinforcement 21 is a plate-shaped member that has a predetermined length in the vehicle front-rear direction and extends in the vehicle up-down direction. The front reinforcement 21 is joined to the front portion of the door inner panel 10 .

An upper portion of the front reinforcement 21 extends in the longitudinal direction of the vehicle and is arranged in front of the beltline portion 14 . In this example, the upper portion is joined to the front portion of the beltline portion 14 by spot welding or the like. In FIG. 4, welding points of spot welding are indicated by W of black circles. In addition, the upper portion of the front reinforcement 21 is arranged so that the upper end of the beltline portion 14 and the upper end of the front reinforcement 21 are substantially aligned, and arranged on the vehicle lower side of the front sash 11A, Furthermore, it is arranged so as to overlap a corner formed by the front edge of the lower opening 13 and the beltline portion 14 when viewed in the vehicle width direction.

The lower part of the front reinforcement 21 is arranged in the lower part of the door inner panel 10. In this example, the corner formed by the lower edge and the front edge of the lower opening 13 has a arranged to overlap. That is, the front reinforcement 21 is joined to the vehicle outer main wall portion 10a of the door inner panel 10 at the position of the welding point W in FIG. 4 while straddling the lower opening portion 13 in the vehicle vertical direction.

The front reinforcement 21 has an outer surface 21b facing the outside of the vehicle, and is bent outward in the vehicle width direction from the front end of the outer surface 21b, and is joined to the front wall portion 10d of the door inner panel 10 at the welding point W in FIG. There is provided a flange 21a.

Further, the front end of the outer surface 21b of the front reinforcement 21 and the flange 21a extend in the vertical direction of the vehicle along the shape of the front end of the door inner panel 10, and the upper portion of the flange 21a is the front portion of the beltline portion 14. , and the lower portion of the flange 21a is arranged below the front wall portion 10d.

In addition, the front portion of the lower portion of the outer surface 21b is inclined toward the rear of the vehicle as it goes downward toward the vehicle. Further, a mounting portion 19 for mounting a door handle is provided at an intermediate portion in the vertical direction of the vehicle in the front portion of the outer surface 21b. A rear end of the outer surface 21b extends in the vertical direction of the vehicle.

The front portion of the outer surface 21 b of the front reinforcement 21 is joined to the main wall portion 10 a of the door inner panel 10 forming the front edge of the lower opening 13 , and the lower portion of the outer surface 21 b is connected to the lower opening 13 . It is joined to the main wall portion 10a of the door inner panel 10 forming the lower edge portion at the position of the welding point W in FIG. Further, a later-described front extension portion 25a of the first center member 25 is joined by spot welding or the like to an intermediate portion in the vehicle vertical direction of the rear portion of the outer surface 21b of the front reinforcement 21 .

Moreover, the flange 21a is arranged so as to cover the front latch mounting portion 15A (FIG. 4). In this example, the front door latch 30A is attached to the front latch attachment portion 15A of the door inner panel 10 with the front reinforcement 21 interposed therebetween.

When the side of the vehicle body receives a side collision or the like, the load inside the vehicle moves to the outside of the vehicle, and the side door 1 is pressed by the load, which may deform the door sash toward the outside of the vehicle. . At this time, a rotational force acts on the side door 1 with an imaginary line connecting the front latch mounting portion 15A and the rear latch mounting portion 15B as the rotational axis X. A door sash positioned at the upper end of the side door 1 is deformed toward the outside of the vehicle, so that the side door 1 is deformed so as to open. On the other hand, the lower end of the side door 1 tends to deform toward the inside of the vehicle.

In the present embodiment, the front reinforcement 21 is joined to the front latch mounting portion 15A, and the front reinforcement 21 is joined to the lower portion of the door inner panel 10 and the beltline portion 14, thereby forming the front latch mounting portion. In addition, when the lower portion of the door inner panel 10 is pressed toward the inside of the vehicle, the reinforcement of the lower portion of the door inner panel 10 allows the upper end side of the side door 1 to move toward the outside of the vehicle. can be inhibited from opening to

Further, the virtual rotation axis X, the beltline portion 14 extending in the longitudinal direction of the vehicle, and the front portion of the door inner panel 10 extending in the vertical direction of the vehicle are arranged to form a substantially triangular shape, thereby increasing the rigidity. increases, and as a result, the deformation that tends to rotate around the virtual rotation axis X is suppressed. That is, since the imaginary rotation axis X that connects the rear latch mounting portion 15B and the front latch mounting portion 15A is connected to the beltline portion 14, it extends along the beltline portion 14 to the front portion of the side door 1. It becomes possible to disperse the stress.

By joining the flange 21a of the front reinforcement 21 to the front wall portion 10d, the front reinforcement 21 can improve the rigidity of the door inner panel 10 in the vehicle width direction. Furthermore, since the flange 21a extends from the beltline portion 14 to the lower portion of the door inner panel 10, it is possible to further widen the range in which the rigidity of the door inner panel 10 in the vehicle width direction is improved. The effect of suppressing the deformation of 10 is enhanced.

In addition, since the front latch mounting portion 15A of the door inner panel 10 of the present embodiment has a convex shape toward the vehicle inner side, the load can be distributed to the beltline portion 14 and the lower portion of the door inner panel 10 . Moreover, since the flange 21a has a convex shape, the width (the length in the vehicle width direction) of the flange 21a is increased, so that the rigidity of the door inner panel 10 in the vehicle width direction can be further improved.

Further, the length of the front reinforcement 21 in the vehicle front-rear direction of the present embodiment is greater than the length of the front sash 11A in the vehicle front-rear direction. In this example, the front end of the upper portion of the outer surface 21b of the front reinforcement 21 and the front end of the upper portion of the flange 21a are arranged so as to be substantially aligned with the front end of the lower portion of the front sash 11A in the vehicle longitudinal direction. Attached to the front. The rear end of the outer surface 21b is joined to the beltline portion 14 located on the vehicle rear side of the rear end of the lower portion of the front sash 11A at the position of the welding point W in FIG.

When a load is applied to the front reinforcement 21, the length of the front reinforcement 21 in the vehicle front-rear direction is greater than the length of the front sash 11A in the vehicle front-rear direction, so the front latch mounting portion 15A deforms in the vehicle vertical direction. It is possible to suppress Furthermore, by setting the length in the longitudinal direction of the vehicle as described above, it becomes easier to disperse the stress to the beltline portion 14 and the lower portion of the door inner panel 10 .

Next, the rear reinforcement 23 will be described. As shown in FIGS. 2 and 3, the rear reinforcement 23 of this embodiment is a plate-shaped member that is joined to the rear portion of the door inner panel 10 and has a predetermined length in the vehicle front-rear direction. , extending in the vertical direction of the vehicle along the convex shape of the rear portion of the door inner panel 10 . In this example, the lower portion of the rear reinforcement 23 is arranged in the vehicle vertical direction intermediate portion of the main wall portion 10 a of the door inner panel 10 that constitutes the rear edge portion of the lower opening portion 13 .

Further, the rear reinforcement 23 of the present embodiment is arranged so as to overlap the rear latch mounting portion 15B as viewed in the vehicle width direction. In this example, the rear portion of the rear reinforcement 23 is arranged to cover the rear latch mounting portion 15B, and the rear door latch 30B is positioned behind the door inner panel 10 with the rear reinforcement 23 interposed therebetween. It is attached to the side latch attachment portion 15B.

Further, the rear reinforcement 23 has a curved portion 23d that curves corresponding to the rear wall portion 10b of the door inner panel 10, although detailed illustration is omitted. The curved portion 23d is curved so as to bulge toward the inside of the vehicle, and is curved to cover the corner formed by the main wall portion 10a and the rear wall portion 10b of the door inner panel 10 from the outside of the vehicle.

Also, the rear reinforcement 23 is joined to overlap the rear end of the beltline portion 14 . Furthermore, the rear reinforcement 23 extends to a door sash provided above the beltline portion 14 . Specifically, an upper extension portion 23e is provided on the upper portion of the rear reinforcement 23 so as to extend over the beltline portion 14 and upwardly of the vehicle. The upper extension portion 23e extends to an intermediate portion of the rear sash 11B in the vertical direction of the vehicle. In this example, the upper portion of the upper extension portion 23e is positioned below the center between the upper and lower ends of the rear sash 11B. The upper extension portion 23e is provided with a step corresponding to the stepped shape of the rear sash 11B, thereby improving the bonding strength between the upper extension portion 23e and the rear sash 11B.

Further, the door inner panel 10 of the present embodiment is provided with a first center member 25 and a second center member 28. The first center member 25 is joined to the front reinforcement 21, and the second center member 28 is The rear part is joined to the rear reinforcement 23 . Furthermore, the first center member 25 and the second center member 28 are joined together. The first center member 25 and the second center member 28 will be described below.

The first center member 25 is a member that extends in the vertical direction of the vehicle as a whole, and is arranged to straddle the lower opening 13 . A front extension portion 25a extending forward of the vehicle is provided at an intermediate portion of the main body of the first center member 25 in the vertical direction of the vehicle. The front portion of the front extension portion 25a is formed by connecting the lower front end of the main body of the first center member 25 and the lower end of the front portion of the front extension portion 25a. The front portion of the front extension portion 25a is joined to the rear portion of the outer surface 21b of the front reinforcement 21 by spot welding or the like. This allows the front reinforcement 21 to be supported by the first center member 25 .

Further, the first center member 25 is provided with vertical ribs 27 and longitudinal ribs 26 . The vertical rib 27 extends in the vertical direction of the vehicle from the upper portion toward the lower portion of the first center member 25 . The front-rear rib 26 is arranged in the middle portion of the first center member 25 in the vertical direction of the vehicle, and extends from the rear portion of the first center member 25 toward the front of the vehicle to the front end of the front extension portion 25a.

The second center member 28 is a member that extends in the vehicle front-rear direction, and is arranged in the middle portion of the lower opening 13 in the vehicle up-down direction. The front portion of the second center member 28 is joined to the rear portion of the first center member 25 by spot welding or the like. A flange 28 a is provided on the rear portion of the second center member 28 , and the flange 28 a is joined to the front lower portion of the rear reinforcement 23 .

In addition, in the present embodiment, the second center member 28 is joined to the rear reinforcement 23, so that when a load is applied to the rear reinforcement 23 from the vehicle width direction, the first center member 25 and A tensile force is generated in the vehicle front-rear direction on the second center member 28 , and deformation of the door inner panel 10 in the vehicle width direction can be supported by the first center member 25 and the second center member 28 . As described above, in this embodiment, the second center member 28 and the front-rear rib 26 of the first center member 25 are arranged so as to be continuous in the vehicle front-rear direction, so that the above effect can be further enhanced. .

A beltline reinforcement 18 extending in the longitudinal direction of the vehicle is attached to the beltline portion 14 of the present embodiment. The beltline reinforcement 18 is arranged to cover the beltline portion 14, the front reinforcement 21, the first center member 25, and the rear reinforcement 23 from the outside of the vehicle. They are joined by welding or the like. By providing the beltline reinforcement 18, the beltline portion 14 is reinforced, and the load acting on the rear latch mounting portion 15B or the like is transferred to the beltline portion 14 via the rear reinforcement 23 or the like. can be dispersed.

In addition, in the present embodiment, since the rear latch attachment portion 15B and the rear reinforcement 23 overlap, even when the load is concentrated around the rear door latch 30B, the load is distributed to the rear reinforcement 23. The load in the vehicle width direction can be supported along the rear wall portion 10b. As a result, deformation of the rear end portion of the side door 1 in the vehicle width direction can be suppressed.

Further, as described above, by joining the rear reinforcement 23 to the rear portion of the beltline portion 14, the load input to the rear latch mounting portion 15B is distributed to the front end portion of the door sash and the side door 1. It becomes possible. As a result, it is possible to prevent destruction in the vicinity of the beltline portion 14 by allowing a certain amount of elastic deformation to occur.

Furthermore, by providing the upper extension portion 23e, it becomes possible to reinforce the beltline portion 14 and to suppress deformation of the door sash away from the vehicle body. That is, by configuring as in the present embodiment, first, the rigidity of the beltline portion 14 is improved, deformation of the beltline portion 14 is suppressed, and then the door sash is deformed so as to fold outward. I'm holding back.

Further, in the present embodiment, the front reinforcement 21 and the door inner panel 10 constitute a closed cross-sectional structure S1. Specifically, as shown in FIG. 6, the closed cross-sectional structure S1 is composed of the main wall portion 10a and the front wall portion 10d in the lower portion of the door inner panel 10 and the lower portion of the front reinforcement 21. As shown in FIG. As shown in FIG. 4, the closed cross-section structure S1 is provided not in a horizontal cross section but in a cross section in a direction along the lower side of the vehicle toward the rear of the vehicle at the front lower portion of the side door 1. As shown in FIG.

A load is input inward in the vehicle width direction to the lower portion of the door inner panel 10 . On the other hand, by forming the closed cross-section structure S1 in the lower portion of the door inner panel 10, it is possible to improve the rigidity of the lower portion of the side door 1 in the vehicle width direction. In addition, the closed cross-section structure S1 has a closed cross-section along the above-described tilt direction, and thus contributes to an improvement in rigidity in the longitudinal direction of the vehicle.

Next, the swing arm 16 will be briefly described. Although shown schematically in FIG. 1, one end of the swing arm 16 is rotatably attached to the middle portion of the first center member 25 in the vertical direction of the vehicle, and the other end is attached to the door. It is rotatably attached to the vehicle body panel on the rear side of the quarter pillar 6 positioned behind the opening 2 .

As shown in FIGS. 1 and 7, the swing arm 16 has two link members 16a, and front portions of the two link members 16a are connected to a rotating shaft 16c extending in the vertical direction of the vehicle. The two link members 16a extend in the vehicle front-rear direction and are spaced apart from each other in the vehicle vertical direction. A rear portion of the link member 16a is rotatably attached to a vehicle body panel or the like via an attachment portion 16b. The swing arm 16 is arranged near the intersection of the vertical rib 27 and the longitudinal rib 26 of the first center member 25 . As a result, the swing arm 16 is attached to a relatively rigid portion, so that the swing arm 16 can be rotated stably.

When the side door 1 changes from the closed state to the open state, the two link members 16a rotate around a rotation shaft (not shown) attached to the vehicle body panel. In accordance with this movement, the two link members 16a rotate around the rotation shaft 16c attached to the first center member 25. As shown in FIG.

In this embodiment, a member such as the link member 16a of the swing arm 16 is not provided at the upper end or the lower end of the side door 1, and the side door 1 is moved by the swing arm 16 positioned in the middle portion in the vertical direction of the vehicle. supported by the vehicle body. That is, when the side door 1 is open, the space between the lower portion of the door inner panel 10 and the side sill 7 on the side of the vehicle body is continuous from the front end to the rear end of the door opening 2 in the longitudinal direction of the vehicle. An extending space S2 is formed. That is, when the side door 1 of this example is in the open state, there is no obstruction between the lower portion of the side door 1 and the side sill 7 between the front end and the rear end of the door opening 2. do not have. Therefore, since the swing arm 16 is not installed at the upper end and the lower end of the side door 1, the connecting portion of the side door 1 with the vehicle body becomes the swing arm 16, the front door latch 30A and the rear door latch 30B.

The description of the present embodiment is an example for describing the present invention, and does not limit the invention described in the claims. Moreover, the configuration of each part of the present invention is not limited to the above-described embodiment, and various modifications are possible within the technical scope described in the claims.

1 side door 2 door opening 5 center pillar 6 quarter pillar 7 side sill 10 door inner panel 10a main wall 10b rear wall 10d front wall 11A front sash 11B rear sash 12 window opening 13 lower opening 14 belt line 15A Front side latch mounting portion 15Aa Long hole 15Ab Round through hole 15B Rear side latch mounting portion 16 Swing arm 16a Link member 16b Mounting portion 16c Rotating shaft 18 Belt line reinforcement 19 Mounting portion 21 Front side reinforcement 21a Flange 21b Outer surface 23 Rear reinforcement 23e Upper extension 25 First center member 25a Front extension 26 Front-back rib 27 Vertical rib 28 Second center member 28a Flange 30A Front door latch 30B Rear door latch 31 Door outer panel S1 Closed cross-sectional structure S2 Side sill and Space W between side door Welding point

Claims (7)

a door outer panel and a door inner panel provided on the vehicle inner side of the door outer panel,
A swing arm that connects the door inner panel and a vehicle body is provided at an intermediate portion of the door inner panel in the vehicle front-rear direction,
In the vehicle side door structure, a front latch mounting portion is provided at a front end portion of the door inner panel, and a rear latch mounting portion is provided at a rear end portion of the door inner panel,
The front latch mounting portion is arranged below the vehicle relative to the rear latch mounting portion,
The door inner panel is provided with a beltline portion extending in the longitudinal direction of the vehicle,
A front reinforcement extending in the vertical direction of the vehicle is joined to the front portion of the door inner panel,
A structure of a vehicle side door, wherein a lower portion of the front reinforcement is arranged at a lower portion of the door inner panel, and an upper portion of the front reinforcement is arranged at the beltline portion. The door inner panel has a main wall facing the outside of the vehicle and a front wall extending from the front end of the main wall to the outside of the vehicle,
The front reinforcement includes a flange bent outward in the vehicle width direction from the front end of the outer surface facing the vehicle outer side and joined to the front wall portion,
2. The vehicle side door structure according to claim 1, wherein a lower portion of said flange is arranged in a lower portion of said front wall portion. 3. The front latch mounting portion according to claim 1 or 2, wherein the front latch mounting portion has a convex shape that projects toward the inside of the vehicle with respect to the beltline portion and the lower portion of the door inner panel. vehicle side door structure. 4. The length of the front reinforcement in the vehicle front-rear direction is longer than the length of the front sash provided at the front portion of the door inner panel in the vehicle front-rear direction. 1. The structure of the vehicle side door according to 1. A center member extending in the longitudinal direction of the vehicle is provided at an intermediate portion of the door inner panel in the vertical direction of the vehicle, and the front reinforcement is joined to a front portion of the center member, The vehicle side door structure according to any one of claims 1 to 4. 3. The vehicle side door according to claim 2, wherein the front wall portion and the main wall portion of the door inner panel and the lower portion of the front reinforcement form a closed cross-sectional structure. structure. A side sill extending in the front-rear direction of the vehicle is provided below the door opening provided on the side of the vehicle body.
when the vehicle side door is open,
A space is formed between the lower portion of the door inner panel and the side sill on the side of the vehicle body so as to extend continuously in the vehicle front-rear direction from the front end to the rear end of the door opening. The vehicle side door structure according to any one of claims 1 to 6.

Images