Vehicle door structure

Abstract

The present application provides a vehicle door structure capable of suppressing an increase in size of parts. The vehicle door structure includes a door panel (4), a first cross member (5), a first bracket (7) attached to a rear end portion (6) of the first cross member (5), a second cross member (8) formed separately from the first cross member (5), a second bracket (10) attached to a rear end portion (9) of the second cross member (8) and formed separately from the first bracket (7), and a link member (11) attached to the door panel (4) and fixing the first bracket (7) and the second bracket (10) in a state of being arranged side by side. The link member (11) has an extension portion (12) extending in a vehicle width direction between the first bracket (7) and the second bracket (10).

Description

TECHNICAL FIELD

[0001] The present application relates to a vehicle door structure. BACKGROUND

[0002] In the past, as a vehicle door structure, a longitudinal beam for clamping a hinge portion is provided in the front portion of a vehicle door. Two cross beams extend toward the rear of the vehicle from the longitudinal beam. Further, these two cross beams are welded to one bracket provided inside the door rearwardly (for example, Patent Document 1).

[0003] PRIOR ART DOCUMENTS

[0004] PATENT DOCUMENTS

[0005] Patent Document 1: Japanese Patent Application Laid-Open No. H6-255365 SUMMARY

[0006] PROBLEMS TO BE SOLVED BY THE INVENTION

[0007] However, in the case of assembling the cross beams and the bracket after welding and conveying to the assembly line in the above-described conventional vehicle door structure, there is a problem that the parts are large in size and the work efficiency is low at the time of conveying.

[0008] The present application aims to provide a vehicle door structure capable of suppressing an increase in size of parts.

[0009] MEANS FOR SOLVING THE PROBLEMS

[0010] The vehicle door structure of the present application is characterized by comprising: a door panel; a first cross beam member; a first bracket attached to an end portion of the first cross beam member; a second cross beam member formed separately from the first cross beam member; and a second bracket attached to an end portion of the second cross beam member and formed separately from the first bracket. Further, the vehicle door structure is provided with a coupling member attached to the door panel and fixing the first bracket and the second bracket in a state of being arranged side by side. The coupling member has an extension portion extending in the vehicle width direction between the first bracket and the second bracket.

[0011] EFFECTS OF THE INVENTION

[0012] According to the vehicle door structure of the present application, it is possible to provide a vehicle door structure capable of suppressing an increase in size of parts. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a side view of the vehicle door structure of the embodiment of the present application, showing a state after the outer panel is detached in order to explain the constitution of the inside of the door of the vehicle side portion.

[0014] Figure 2 is a perspective view of the vehicle door structure of the embodiment of the present application, showing the constitution of the coupling member as a whole.

[0015] Figure 3is a side view of a portion of the vehicle door structure of the embodiment in which a recessed portion of a link member is enlarged.

[0016] Figure 4 is a cross-sectional view of a portion of the vehicle door structure of the embodiment taken along the line IV-IV in Figure 3

[0017] Explanation of Reference Numerals

[0018] 1 vehicle

[0019] 4 door panel

[0020] 5 first cross member

[0021] 6 rear end portion (end portion)

[0022] 7 first bracket

[0023] 8 second cross member

[0024] 9 rear end portion (end portion)

[0025] 10 second bracket

[0026] 11 link member

[0027] 12 extension portion DETAILED DESCRIPTION

[0028] An embodiment of the present application will be described below with appropriate reference to the drawings. The same reference numerals are assigned to the same components and repetitive description will be omitted. In describing directions, basically, the front-rear, left-right, or up-down directions are described from the viewpoint of the driver unless otherwise specified. In addition, the "vehicle width direction" and the "left-right direction" have the same meaning.

[0029] First, the configuration of the vehicle door structure of the embodiment will be described.

[0030] As shown in Figure 1 , one or more door opening portions are provided in the left and right side surfaces of the vehicle body of the vehicle 1. The door opening portions in each side surface are provided with a front door 2 and a rear door 3. In Figure 1 , the rear door 3 on the left side of the vehicle 1 is described in order to describe the vehicle door structure of the embodiment. In Figure 1 , the door outer panel that configures the outer appearance surface of the rear door 3 is omitted for convenience of description. Note that the rear door on the right side of the vehicle 1 is omitted because it is left-right symmetrical with the rear door 3 on the left side.

[0031] ​The rear door 3 includes a door inner panel 4 (hereinafter referred to as the "door panel 4"), a rod-shaped first cross member 5, and a rod-shaped second cross member 8 formed separately from the first cross member 5. The door panel 4 includes a door body having a recessed portion formed inside for accommodating the first cross member 5 and the second cross member 8, and a window frame having a frame strip provided at the upper edge of the door body and supporting the window panel.

[0032] The first cross member 5 and the second cross member 8 attached to the door panel 4 are formed in a straight line along the longitudinal direction with substantially the same radial dimensions.

[0033] The front end of the first cross member 5 is connected to a front fixing member 18 provided along the front edge of the door panel 4 .

[0034] Furthermore, the front end of the second cross member 8 is connected to the front-side fixing member 18 at a position spaced downward from the front end of the first cross member 5 .

[0035] The first cross member 5 and the second cross member 8 of this embodiment are inclined upward as they go toward the rear of the vehicle. In addition, the vertical distance between the first cross member 5 and the second cross member 8 becomes narrower as they go toward the rear of the vehicle.

[0036] Furthermore, the rear door 3 includes a first bracket 7 attached to the rear end portion 6 of the first cross member 5 and a second bracket 10 attached to the rear end portion 9 of the second cross member 8 .

[0037] The first bracket 7 and the second bracket 10 are formed separately from each other using a metal material. The first bracket 7 and the second bracket 10 have a cross member mounting portion to which the rear end portions 6 and 9 are mounted and a joint surface portion spot-welded to the door panel 4 together with a connecting member 11 described later.

[0038] like Figure 2 As shown, the first bracket 7 and the second bracket 10 have a crank shape when viewed in cross section. Specifically, the first bracket 7 and the second bracket 10 include: a connecting surface 7a, 10a extending in the vertical direction and connected to the connecting member 11; a rising portion 7b, 10b rising outward in the vehicle width direction from the front edge of the connecting surface 7a, 10a; an extended surface 7c, 10c extending forward from the top of the rising portion 7b, 10b; and a cross member mounting portion 7d, 10d recessed in the substantially vertical center of the extended surface 7c, 10c and mounted to the first cross member 5 and the second cross member 8.

[0039] The first cross member 5 and the second cross member 8 can be independently transported in a state in which the first bracket 7 and the second bracket 10 are attached to the respective rear end portions 6, 9. At this time, the first bracket 7 and the second bracket 10 are configured by separate members, and thus the first cross member 5 and the second cross member 8 can be transported in a separated state. Therefore, it is possible to avoid a large volume of the first cross member 5 and the second cross member 8 in the transportation state.

[0040] Further, the rear door 3 is provided with a link member 11 that links the first cross member 5 and the second cross member 8 to each other. The first cross member 5 and the second cross member 8 are attached to the rear door 3 by means of the link member 11.

[0041] As shown in Figure 2 , the link member 11 is formed of a metal material and is provided so as to extend along the first bracket 7 and the second bracket 10 that are arranged side by side in the up-down direction.

[0042] The link member 11 has a door panel attachment portion 13 that has an L-shaped cross section when viewed in the horizontal direction (see Figure 4 ) and is attached to the door panel 4, and an extension portion 12 that extends from an end portion of the door panel attachment portion 13 toward the opposite side of the second bracket 10 in the vehicle width direction.

[0043] Further, the door panel attachment portion 13 of the present embodiment is engaged with each other in a three-ply overlapping manner in a state of being sandwiched between the first bracket 7 and the second bracket 10 and the door panel 4.

[0044] As shown in Figure 2 , the door panel attachment portion 13 extends from the first bracket 7 to the second bracket 10 along the door panel 4.

[0045] Further, the door panel attachment portion 13 is engaged to the door panel 4 by spot welding together with the first bracket 7 and the second bracket 10, respectively.

[0046] As shown in Figure 3 , a recess 14 in the shape of a reinforcing rib is formed in a portion of the door panel attachment portion 13 between the first bracket 7 and the second bracket 10. The recess 14 of the present embodiment is formed so as to extend in the front-rear direction D of the vehicle 1.

[0047] As shown in Figure 4 , in the door structure of the present embodiment, a prescribed gap dl is formed between the door panel attachment portion 13 and the door panel by means of the recess 14. Further, the extension portion 12 is arranged apart from a surface 4a of the door panel 4 that extends in the vehicle width direction by a prescribed gap d2.

[0048] As shown in Figure 2As shown, the vehicle door structure of the present embodiment has a striker 16 as one of the components 15 of the lock portion. The striker 16 is formed separately from the link member 11. Also, the striker 16 is engaged with the door panel 4 at a position slightly separated upward from the link member 11.

[0049] In addition, as Figure 2 As shown, the door panel 4 has a curved portion 17 formed in a circular arc shape along the shape of the tire 20.

[0050] Also, the door panel mounting portion 13 of the link member 11 is formed in a curved shape matching the curved portion 17. Thus, the link member 11 engages the door panel mounting portion 13 in a state along the curved portion 17.

[0051] As described above, the vehicle door structure of the present embodiment, as Figure 1 As shown, the vehicle door structure includes the door panel 4, the first cross member 5, the first bracket 7 mounted to the rear end portion 6 of the first cross member 5, and the second cross member 8 formed separately from the first cross member 5. In addition, the vehicle door structure includes the second bracket 10 mounted to the rear end portion 9 of the second cross member 8, formed separately from the first bracket 7, and the link member 11 mounted to the door panel 4, fixing the first bracket 7 and the second bracket 10 in a state arranged side by side. The link member 11 has the extension portion 12 extending in the vehicle width direction between the first bracket 7 and the second bracket 10.

[0052] In the vehicle door structure of the present embodiment configured in the above-described manner, since the first bracket 7 and the second bracket 10 are formed separately, it is possible to suppress an increase in the size of the components.

[0053] In detail, the first bracket 7 and the second bracket 10 are linked by the link member 11. The link member 11 has the extension portion 12 extending in the vehicle width direction in the entire length range thereof.

[0054] Thus, the first bracket 7 and the second bracket 10 are reinforced by the link member 11 (the extension portion 12) to suppress deformation caused by load input.

[0055] Thus, even if the first cross member 5 and the second cross member 8 are independently carried, it is easy to obtain the mounting strength required in the mounted state.

[0056] As Figure 2 As shown, the link member 11 has the door panel mounting portion 13 extending from the first bracket 7 to the second bracket 10 along the door panel 4. The door panel mounting portion 13 is engaged with the door panel 4 together with the first bracket 7 and the second bracket 10, respectively.

[0057] The first bracket 7 and the second bracket 10 are welded to the door panel 4 by means of the door panel mounting portion 13 of the link member 11. Thus, when the link member 11 is mounted to the door panel 4 by welding at other welding points as well, the first bracket 7 and the second bracket 10 are fixed at the same time.

[0058] Thus, it is not necessary to previously fuse and integrate the first bracket 7 and the second bracket 10 to the link member 11.

[0059] Therefore, in the conveyance state, the first cross member 5 and the second cross member 8 can be conveyed independently. Also, in the present embodiment, the first bracket 7, the second bracket 10, and the link member 11 can be conveyed independently.

[0060] Therefore, the size of the parts in the conveyance state can be reduced, to improve the work efficiency at the time of conveyance.

[0061] In addition, as shown in Figure 3 , the door panel mounting portion 13 has a recessed portion 14 that is separate from the door panel 4.

[0062] Generally, it is difficult for the rust preventive to penetrate into the portion where the panels overlap, and there is a possibility that rusting occurs to weaken the joining rigidity. In the door structure of the present embodiment, the recessed portion 14 provided in the link member 11 forms gaps dl, d2 between the door panel 4 and the door panel mounting portion 13 (refer to Figure 4 ).

[0063] Further, by causing the rust preventive to penetrate into the gaps dl, d2, the rust preventive work can be easily performed. Therefore, in the door structure of the present embodiment, the rust preventive spreads to the mounting portion between the door panel 4 and the door panel mounting portion 13. Thus, it is possible to prevent rusting and to suppress a decrease in the joining rigidity.

[0064] Further, as shown in Figure 2 , the recessed portion 14 is formed in the link member 11 between the first bracket 7 and the second bracket 10.

[0065] Therefore, it is possible to cause the rust preventive to penetrate into the gaps dl, d2 of the recessed portion 14 to suppress rusting at the joint between the first bracket 7 and the second bracket 10. Thus, it is possible to suppress a decrease in the rigidity at the recessed portion 14 between the first bracket 7 and the second bracket 10.

[0066] Further, the recessed portion 14 is formed so as to extend in the vehicle front-rear direction.

[0067] Therefore, the rigidity of the link member 11 is increased by the recessed portion 14. Thus, it is possible to suppress bending deformation between the first bracket 7 and the second bracket 10.

[0068] In this way, the recess 14, which is efficient at intersecting, is extended to a portion that is likely to be bent and deformed due to side collision input, and the rigidity can be efficiently improved.

[0069] Further, the vehicle door structure of the present embodiment has a lock portion constituent member 15 that is formed separately from the link member 11.

[0070] Accordingly, the load input due to side collision is difficult to transmit as an impact to the lock portion constituent member 15.

[0071] Therefore, there is no need to worry about deformation or breakage of the striker 16 of the lock portion constituent member 15, the portion where the striker 16 is installed, and the like.

[0072] Further, as shown in Figure 2 the door panel 4 has a curved portion 17 that is formed in a circular arc shape along the shape of the tire 20, and the link member 11 is formed in a shape that matches the curved portion 17 and is joined to the curved portion 17.

[0073] The curved portion 17 of the door panel 4 is formed in a circular arc shape. Therefore, the joining shape of the link member 11 is limited.

[0074] Further, the link member 11 supports the rear end portions 6, 9 of the first and second cross member 5, 8, respectively. Therefore, it is necessary to ensure the overlapping amount with the first and second cross member 5, 8 of a prescribed size.

[0075] In the vehicle door structure of the present embodiment, the link member 11 that is formed in a shape that matches the curved portion 17 is disposed to the curved portion 17. Therefore, the inclination and the size of the first and second brackets 7, 10 are not restricted by the shape of the curved portion 17 of the door panel 4, and a desired overlapping amount can be ensured to be optimal.

[0076] Note that the right rear door of the vehicle 1 of the present embodiment is described using a structure that is left-right symmetrical to the left rear door 3, but is not particularly limited thereto. For example, there can be a vehicle that does not have a right rear door. In this way, the shape, the number, and the material of the other doors are not particularly limited to the rear door 3 of the present embodiment.

[0077] In the vehicle door structure of the present embodiment, the first and second cross members 5, 8 that are separately carried in are installed to the curved portion 17 of the door panel 4 in a state where the first and second brackets 7, 10 are arranged side by side, by means of the link member 11. In the installed state, the required strength is imparted by the link member 11. Therefore, a vehicle door structure that is good in operability and that can suppress an increase in the size of parts can be provided.

[0078] The present application is not limited to the above-described embodiments, and various modifications can be made. The above-described embodiments are examples for clearly and easily explaining the present application, and are not necessarily limited to having all the configurations described. In addition, a part of the configuration of one embodiment can be replaced with the configuration of another embodiment, and in addition, the configuration of one embodiment can be added with the configuration of another embodiment. In addition, a part of the configuration of each embodiment can be deleted or other configurations can be added / replaced. The modifications that can be made with respect to the above-described embodiments are, for example, as follows.

[0079] In the door structure of the present embodiment, the striker 16 is illustrated and described as a locking portion configuration member 15 that is configured separately from the link member 11. However, the present application is not particularly limited thereto. For example, a bracket or the like that mounts a locking member such as a latch, and the like, is included, and as long as the member is configured separately from the link member 11, the shape, number, and material are not particularly limited thereto.

[0080] In addition, in the present embodiment, the link member 11 applied to the rear door 3 located at the left side portion of the vehicle 1 is described, but the present application is not particularly limited thereto. For example, it can be applied to the rear door 3 or the front door 2 located at the right side portion. In addition, it can be applied to a frameless door that does not have a window frame portion. That is, the configuration of the door to which the link member 11 is applied, the form, number, and material of a hinged door or a sliding door, and the like, can be arbitrary.

Claims

1. A vehicle door construction, characterized by including: a door panel; a first cross member; a first bracket mounted to an end of the first cross member; a second cross member formed separately from the first cross member; a second bracket mounted to an end of the second cross member and formed separately from the first bracket; and a connecting member mounted to the door panel and fixing the first bracket and the second bracket in a side-by-side arrangement, the connecting member having an extension portion extending between the first bracket and the second bracket and in a vehicle width direction, and a door panel mounting portion extending from the first bracket to the second bracket along the door panel, the extension portion extending from an end of the door panel mounting portion toward an opposite side from the first bracket and the second bracket, the door panel mounting portion being sandwiched between the first bracket, the second bracket, and the door panel, and being engaged with the first bracket and the second bracket to the door panel, a recess formed in the connecting member between the first bracket and the second bracket and separated from the door panel.

2. The vehicle door structure according to claim 1, wherein the recess is formed in a manner extending in a vehicle front-rear direction.

3. The vehicle door structure according to claim 1, wherein the recess is formed in a manner extending in a vehicle front-rear direction.

4. The vehicle door structure according to any one of claims 1 to 3, wherein a lock portion-constituting member formed separately from the connecting member is provided.

5. The vehicle door structure according to any one of claims 1 to 3, wherein the door panel has a curved portion formed in a circular arc shape, the connecting member is formed in a shape matching the curved portion and is engaged with the curved portion.

6. The vehicle door structure according to claim 4, wherein the door panel has a curved portion formed in a circular arc shape, the connecting member is formed in a shape matching the curved portion and is engaged with the curved portion.

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