Vehicle door structure

Abstract

The present invention addresses the problem of providing a vehicle door structure capable of improving the rigidity of the lower portion of a door. A vehicle door structure (100) is provided with inner panels (11, 21), outer panels (12, 22) disposed on the vehicle outside of the inner panels (11, 21), and reinforcing members (13, 23) provided between the inner panels (11, 21) and the outer panels (12, 22). The reinforcing members (13, 23) are continuously provided so as to straddle the front portions (11a, 21a), the lower portions (11b, 21b), and the rear portions (11c, 21c) of the inner panels (11, 21).

Description

Technical Field

[0001] The present invention relates to a vehicle door structure. Background Art

[0002] Generally, a door installed in an automobile is configured to include an inner panel, an outer panel, and a reinforcement member (see, for example, Patent Document 1).

[0003] The vehicle exterior component and the vehicle rear door described in Patent Document 1 are as follows Figure 8 As shown, the outer edge outer panel 70 and the outer edge outer panel 72 as reinforcement members are provided. The outer edge outer panel 70 is composed of an L-shaped member joined to the front side of the front edge and the lower edge of the door inner panel 62. The outer edge outer panel 72 is composed of an inverted L-shaped member joined to the rear side of the rear edge and the lower edge of the door inner panel 62.

[0004] Prior art literature

[0005] Patent Literature

[0006] Patent Document 1: Japanese Patent No. 6252507 (see Figure 8 ) Summary of the invention

[0007] Problems to be solved by the invention

[0008] However, in the vehicle exterior component and the vehicle rear door described in Patent Document 1, the outer edge outer panel 70 on the front side and the outer edge outer panel 72 on the rear side are separated in the front-rear direction and arranged in an interrupted state. Therefore, the rigidity of the door lower portion of the side door body 60 is weak, and there is room for improvement in order to ensure the rigidity of the door lower portion.

[0009] Therefore, an object of the present invention is to provide a vehicle door structure capable of improving the rigidity of the lower portion of the door.

[0010] Means for solving problems

[0011] As a means for solving the aforementioned problems, the vehicle door structure of the present invention includes: an inner panel; an outer panel, which is arranged on the outer side of the inner panel; and a reinforcing member, which is arranged between the inner panel and the outer panel, and the reinforcing member is continuously arranged in a manner spanning the front, lower and rear of the inner panel.

[0012] Effects of the Invention

[0013] The present invention can provide a vehicle door structure capable of improving the rigidity of the lower portion of the door. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 11 is a diagram showing a vehicle door structure according to an embodiment of the present invention, and is a schematic side view showing an installation state of an inner panel of a front door as viewed from the vehicle exterior.

[0015] Figure 2 1 is a diagram showing a vehicle door structure according to an embodiment of the present invention, and is a schematic side view showing an installation state of a window regulator of a front door as viewed from the vehicle outer side.

[0016] Figure 3 yes Figure 1 III-III enlarged cross-sectional view.

[0017] Figure 4 yes Figure 1 Enlarged cross-sectional view of IV-IV.

[0018] Figure 5 yes Figure 1 VV enlarged cross-sectional view.

[0019] Figure 6 The figure shows the vehicle door structure according to the embodiment of the present invention, and is a schematic side view showing the installation state of the inner panel of the rear door as viewed from the vehicle outer side.

[0020] Figure 7 yes Figure 6 VII-VII enlarged cross-sectional view.

[0021] Figure 8 yes Figure 6 VIII-VIII enlarged cross-sectional view.

[0022] Fig. 9 yes Figure 6 IX-IX enlarged cross-sectional view.

[0023] Fig.10 yes Figure 6 Enlarged view of part A.

[0024] Fig.11 Observed from the back side Figure 6 An enlarged stereogram of section A.

[0025] Description of Reference Numerals

[0026] 1 Front door

[0027] 2 Rear doors

[0028] 11, 21 Inner panel

[0029] 11a, 21a front

[0030] 11b, 21b lower part

[0031] 11c, 21c rear

[0032] 11d, upper part of 21d

[0033] 11e, 21e window openings

[0034] 12, 22 outer panel

[0035] 13, 23 Reinforcement components

[0036] 14, 24 Front closed section

[0037] 15, 25 Lower closed section

[0038] 16, 26 rear closed section

[0039] 71, 72 Door beam

[0040] 71a, 72a front end

[0041] 71b, 72b rear end

[0042] 100 Vehicle door structure DETAILED DESCRIPTION

[0043] The following is based on Figures 1 to 11 An example of a vehicle door structure 100 according to an embodiment of the present invention will be described.

[0044] It should be noted that the description is given with the vehicle's traveling direction being "front", the backward direction being "rear", the vertically upper side being "up", the vertically lower side being "down", and the vehicle width directions being "left" and "right".

[0045] "vehicle"

[0046] A vehicle to which the vehicle door structure 100 of the present invention is applied is provided with Figure 1 , Figure 2 and Figure 6 The vehicle may be provided with doors D (front door 1 and rear door 2) as shown, and the form and type thereof are not particularly limited. For example, a door opening (not shown) is formed in the vehicle body in order to allow the doors D to be freely opened and closed.

[0047] 《Vehicle door structure》

[0048] The vehicle door structure 100 includes a door D having inner panels 11 , 21 , outer panels 12 , 22 , and reinforcement members 13 , 23 .

[0049] Car Door

[0050] like Figure 1 , Figure 2 and Figure 6As shown, the door D has no particular limitation on the form thereof and may include inner panels 11, 21, outer panels 12, 22 and reinforcement members 13, 23. That is, the door D may be a side door for opening and closing a door opening (not shown) of a vehicle body.

[0051] Hereinafter, as an example of the door D, a front door 1 and a rear door 2 of a hinged rear-opening type arranged on the side of the vehicle body will be described.

[0052] Front Door

[0053] Figure 1 or Figure 2 The front door 1 shown is a front door disposed at the front side of the vehicle body. The front door 1 includes an inner panel 11, an outer panel 12, a reinforcement member 13, a door beam 71, a skin reinforcement member 81, a skin upper reinforcement member 91, a door hinge 31, a window glass (omitted from the illustration), an inner lining (omitted from the illustration), a window regulator 41 (see FIG. Figure 2 ), door locking device 51 (see Figure 2 ) and wiring harness and other electrical components 61 (see Figure 2 ).

[0054] <Inner panel>

[0055] like Figure 1 As shown, the inner panel 11 is a door body constituting the framework of the front door 1. The inner panel 11 is formed of a metal plate member such as a rolled steel plate. The inner panel 11 has a window opening 11e, a speaker installation hole 11f, and a window frame 11g. The front end 71a and the rear end 71b of the door beam 71 are fixed to the front part 11a and the rear part 11c of the inner panel 11. The inner panel 11 has a window opening 11e at the upper part 11d.

[0056] like Figure 2 As shown, the outer panel 12 (see Figure 3 to Figure 5 ) is fixed to the outer peripheral edge of the inner panel 11 in the vehicle width direction via the door crossbeam 71, the skin reinforcement 81 and the skin upper reinforcement 91. The inner panel 11 is connected to the front pillar (not shown) by a pair of upper and lower door hinges 31, 31 installed on the front end side so as to be openable and closable. The rear end side of the inner panel 11 is kept in the closed state of the door by the door locking device 51.

[0057] like Figure 2 As shown, the window opening 11e is a portion where a window glass (not shown) is arranged. The window opening 11e is formed by the window frame 11g of the inner panel 11, the skin window frame reinforcement 93 provided in a manner overlapping the window frame 11g, and the skin upper reinforcement 91 provided at the lower outer edge of the window opening 11e.

[0058] The window frame portion 11g is a window frame that supports the outer peripheral portion of a window glass (not shown).

[0059] The speaker installation hole 11f is a hole for installing a speaker (not shown). The speaker is installed in the speaker installation hole 11f, for example, via a vibration-proof seal member (not shown). The speaker installation hole 11f is formed in the front lower part of the inner panel 11. A reinforcing rib 11j is formed on the outer periphery of the speaker installation hole 11f for reinforcing the speaker installation hole 11f.

[0060] like Figure 1 or Figure 2 As shown in FIG. 1 , the reinforcing rib 11h is a reinforcing portion for reinforcing a portion where the window regulator 41 is provided. The reinforcing rib 11h extends in the up-down direction at the center portion of the inner panel 11.

[0061] The reinforcing rib 11i is a reinforcing portion for reinforcing a portion where the door latch device 51 is provided. The reinforcing rib 11i extends in the up-down direction at the rear portion 11c of the inner panel 11.

[0062] like Figure 2 As shown, the reinforcing ribs 11h, 11i, and 11j are formed by a concave depression or a convex bulge formed by protruding on the inner panel 11. The reinforcing ribs 11h, 11i, and 11j have the function of reinforcing the installation surfaces of the window lifter 41, the door locking device 51, and the speaker (not shown) to make them difficult to bend.

[0063] <Outer panel>

[0064] like Figure 1 , Figure 3-4 As shown, the outer panel 12 is composed of a thin plate-shaped resin member arranged on the vehicle outer side of the inner panel 11. The outer panel 12 is detachably mounted on the vehicle width direction outer side of the inner panel 11. Therefore, for the door D, when the outer panel 12 is removed from the inner panel 11, the installation position of the window regulator 41, the installation position of the door locking device 51, etc. are exposed, so the installation work of the window regulator 41, the door locking device 51, etc. can be easily performed.

[0065] <Reinforcement parts>

[0066] like Figure 1 As shown, the reinforcing member 13 is composed of a metal plate member disposed between the inner panel 11 and the outer panel 12. The reinforcing member 13 is continuously disposed from the front portion 11a of the inner panel 11 via the lower portion 11b to the rear portion 11c. Therefore, the reinforcing member 13 is formed into an L-shape (or a U-shape) when viewed from the side. The vehicle door D having such a reinforcing member 13 can improve the rigidity of the lower portion of the vehicle door.

[0067] The reinforcement member 13 and the inner panel 11 form a front closed cross-section portion 14 (see Figure 3 ), lower closed cross-section portion 15 (see Figure 4 ) and the rear closed cross-section portion 16 (see Figure 5 ). Therefore, the reinforcing member 13, which is L-shaped (or U-shaped) when viewed from the side, is reinforced in the range from the front portion 13a to the rear portion 13c via the lower portion 13b. The upper portion 13d of the reinforcing member 13 extends from the lower portion 13b to the front lower end portion (at least a portion of the periphery) of the window opening 11e.

[0068] The reinforcing member 13 is formed by connecting a front reinforcing member 13A extending in the up-down direction at the front portion 13a and a lower reinforcing member 13B extending in the front-back direction at the lower portion 13b to each other in a flush manner.

[0069] It should be noted that, in the implementation mode, Figure 1 and Figure 2 As shown, the rear portion 13c of the reinforcing member 13 is short in the vertical direction and has an L-shape as a whole. However, the rear portion 13c may be long in the vertical direction and have a U-shape as a whole.

[0070] like Figure 3 As shown, the front closed cross-section portion 14 is formed between the reinforcing member 13 and the front portion 11a of the inner panel 11. Therefore, the rigidity of the front portion 11a of the inner panel 11 is increased. The front closed cross-section portion 14 is a closed cross-section extending in the vertical direction and has a substantially rectangular shape that is elongated in the left-right direction. The front closed cross-section portion 14 extends to the vicinity of the front end portion of the window frame portion 11g.

[0071] like Figure 4 As shown, the lower closed cross-section portion 15 is formed between the reinforcing member 13 and the lower portion 11b of the inner panel 11. The lower closed cross-section portion 15 is a closed cross-section extending in the front-rear direction and has a substantially rectangular shape that is elongated in the left-right direction. Therefore, the rigidity of the lower portion 11b of the inner panel 11 is increased. The reinforcing member 13 and the lower portion 11b of the inner panel 11 are connected by a sliding clip SC.

[0072] like Figure 5 As shown, the rear closed cross-section portion 16 is formed between the reinforcing member 13 and the rear portion 11c of the inner panel 11. The rear closed cross-section portion 16 is a closed cross-section extending in the vertical direction and has a substantially rectangular shape that is elongated in the horizontal direction. Therefore, the rigidity of the rear portion 11c of the inner panel 11 is increased. In this embodiment, the vertical dimension of the rear closed cross-section portion 16 is shorter than that of the front closed cross-section portion 14.

[0073] <Door beam>

[0074] like Figure 1As shown, the door beam 71 is a door reinforcement member for reinforcing the front door 1. The door beam 71 is arranged slightly obliquely rearward and downward relative to the front door 1 in the front-rear direction. The straight door beam 71 and the reinforcement member 13 in an L-shaped shape when viewed from the side form a truss structure in a triangular shape when viewed from the side. The front end 71a of the door beam 71 is detachably mounted to the reinforcement member 13 provided at the front portion 11a of the inner panel 11 via a beam bracket 712. The rear end 71b of the door beam 71 is detachably mounted to the rear portion 11c of the inner panel 11 via a beam bracket 713. In other words, the rear end 71b of the door beam 71 is arranged adjacent to the rear portion 13c of the reinforcement member 13. The door beam 71 is composed of a beam body 711, a beam bracket 712 on the front side, and a beam bracket 713 on the rear side.

[0075] The beam body 711 is formed of, for example, a linear metal pipe.

[0076] The front cross beam bracket 712 is a bracket made of a metal plate for attaching the front end portion 71a of the cross beam body 711 to the front portion 13a of the reinforcement member 13. The cross beam bracket 712 has an engagement groove 712a engaged with the front end portion 71a of the door cross beam 71 and a bolt installation hole (not shown) for installing a fixing member 714 for fixing the cross beam bracket 712 to the front portion 13a of the reinforcement member 13.

[0077] like Figure 1 As shown, the rear cross beam bracket 713 is a bracket made of a metal plate for mounting the rear end portion 71b of the cross beam body 711 to the rear portion 11c of the inner panel 11. The cross beam bracket 713 has a snap-fit ​​groove 713a engaged with the rear end portion 71b of the door cross beam 71 and a bolt setting hole (not shown) for setting a fixing member 715 for detachably fixing the cross beam bracket 713 to the rear portion 11c of the inner panel 11.

[0078] <Surface reinforcement>

[0079] like Figure 2 As shown, the skin reinforcement 81 is a door reinforcement member for reinforcing the front door 1, similarly to the door beam 71. The skin reinforcement 81 is, for example, a metal plate member extending in the front-rear direction and having a substantially U-shaped shape when viewed in cross section. The skin reinforcement 81 has a front end 81a fixed to the front portion 13a of the reinforcement member 13, and a rear end 81b fixed to the rear portion 11c of the inner panel 11.

[0080] <Skin reinforcement>

[0081] The upper skin reinforcement 91 is a metal reinforcement plate component disposed at the lower portion of the vehicle outer side of the window opening portion 11e of the inner panel 11. The upper skin reinforcement 91 fixes the front end portion 91a to the front portion 13a of the reinforcement component 13, and fixes the rear end portion 91b to the rear portion 11c of the inner panel 11. The upper skin reinforcement 91 is disposed between the inner panel 11 and the outer panel 12. The front end portion 91a and the rear end portion 91b of the upper skin reinforcement 91 increase the width in the up-and-down direction compared to the central portion of the upper skin reinforcement 91 to improve the rigidity. The upper skin reinforcement 91 has a door mirror setting portion 91c at the front end portion 91a, and a door handle setting portion 91d at the rear end portion 91b.

[0082] <Surface window frame reinforcement>

[0083] The skin window frame reinforcement 93 is a metal reinforcing plate member disposed over the entire rear portion of the window frame portion 11g of the inner panel 11. The skin window frame reinforcement 93 is disposed in a range from the rear upper end to the rear lower end of the window frame portion 11g.

[0084] <Door hinge>

[0085] like Figure 1 As shown in FIG. 1 , the door hinges 31 , 31 are hinge members for rotatably mounting the front door 1 on the vehicle body. The door hinges 31 , 31 are mounted at the upper and lower portions of the front end portion of the front door 1 , respectively.

[0086] Rear Door

[0087] like Figure 6 As shown in FIG. 1 , the rear door 2 is a rear door disposed at the rear side of the vehicle body. The rear door 2 includes an inner panel 21, an outer panel 22, a reinforcement member 23, a door cross beam 72, a skin reinforcement member 82, a skin upper reinforcement member 92, a hinge reinforcement member 28 (see FIG. 1 ). Figure 7 ), door hinges 32, window glass (omitted from the illustration), lining (omitted from the illustration), window lifters (omitted from the illustration), door locking devices (omitted from the illustration) and electrical components such as wiring harnesses (omitted from the illustration).

[0088] <Inner panel>

[0089] like Figure 6 As shown, the inner panel 21 is the door body constituting the skeleton of the rear door 2, similarly to the inner panel 11 of the front door 1. The inner panel 21 is formed of a metal plate member such as a rolled steel plate. The inner panel 21 has a window opening 21e, a speaker installation hole 21f, and a window frame 21g. The front end 72a and rear end 72b of the door beam 72, the front end 82a and rear end 82b of the skin reinforcement 82, and the front portion 21a and rear portion 21c fixed to the inner panel 21. The inner panel 21 has a window opening 21e at the upper portion 21d.

[0090] The peripheral edge of the outer panel 22 is fixed to the outer peripheral edge of the inner panel 21 in the vehicle width direction via the door crossbeam 72, the skin reinforcement 82 and the skin upper reinforcement 92. The inner panel 21 is connected to the center pillar (not shown) by a pair of upper and lower door hinges 32, 32 installed on the front end side so as to be openable and closable. The rear end side of the inner panel 21 is kept in a closed state by a door locking device (not shown).

[0091] like Figure 6 As shown, the window opening 21e is a portion where a window glass (not shown) is arranged. The window opening 21e is formed by the window frame 21g of the inner panel 21, the skin window frame reinforcement 94 provided in a manner overlapping the window frame 21g, and the skin upper reinforcement 92 provided at the lower outer edge of the window opening 21e.

[0092] The window frame portion 21g is a window frame that supports the outer peripheral portion of a window glass (not shown).

[0093] The speaker installation hole 21f is a hole for installing a speaker (not shown) similarly to the speaker installation hole 11f of the front door 1. The speaker is installed in the speaker installation hole 21f, for example, via a vibration-proof seal (not shown). The speaker installation hole 21f is formed in the front lower part of the inner panel 21. A reinforcing rib 21j is formed on the outer periphery of the speaker installation hole 21f for reinforcing the speaker installation hole 21f.

[0094] The reinforcing rib 21h is a reinforcing portion for reinforcing a portion where a window regulator (not shown) is provided. The reinforcing rib 21h is provided in a central portion of the inner panel 21 extending in the up-down direction.

[0095] The reinforcing rib 21i is a reinforcing portion for reinforcing a portion where a door locking device (not shown) is provided. The reinforcing rib 21i is provided to extend in the up-down direction at the rear portion 21c of the inner panel 21.

[0096] The reinforcing ribs 21h, 21i, and 21j are formed by recessed grooves or protruding bulges that are convex when viewed in section on the inner panel 21. The reinforcing ribs 21h, 21i, and 21j reinforce the surfaces where the window regulator (not shown), the door lock device (not shown), the speaker (not shown), etc. are installed, so as to make them less likely to bend.

[0097] <Outer panel>

[0098] like Figure 6 As shown, the outer panel 22 is a thin plate-shaped resin member disposed on the vehicle outer side of the inner panel 21. The outer panel 22 is detachably attached to the inner panel 21.

[0099] <Reinforcement parts>

[0100] The reinforcing member 23 is composed of a metal plate member disposed between the inner panel 21 and the outer panel 22. The reinforcing member 23 is continuously disposed from the front portion 21a of the inner panel 21 via the lower portion 21b to the rear portion 21c. Therefore, the reinforcing member 23 is formed into an L-shape (or a U-shape) when viewed from the side. The vehicle door D can improve the rigidity of the lower portion of the vehicle door by having such a reinforcing member 23.

[0101] The reinforcement member 23 and the inner panel 21 form a front closed cross-section portion 24 (see Figure 7 ), lower closed cross-section portion 25 (see Figure 8 ) and the rear closed cross-section portion 26 (see Fig. 9 ). Therefore, the reinforcing member 23, which is L-shaped (or U-shaped) when viewed from the side, is reinforced from the front portion 23a through the lower portion 23b to the rear portion 23c. The upper portion 23d of the reinforcing member 23 extends to the lower front end portion (at least a portion of the periphery) of the window opening 21e.

[0102] like Figure 7 As shown, the front closed cross-section portion 24 is formed between the hinge reinforcement 28 and the front portion 21a of the inner panel 21. The front closed cross-section portion 24 is a closed cross-section extending in the up-down direction and has a substantially triangular shape that is long in the left-right direction. The front closed cross-section portion 24 extends to the vicinity of the front end portion of the window frame portion 21g. Therefore, the rigidity of the front portion 21a of the inner panel 21 becomes high.

[0103] like Figure 8 As shown in the figure, the lower closed cross-section portion 25 is formed between the reinforcing member 23 and the lower portion 21b of the inner panel 21. The lower closed cross-section portion 25 is a closed cross-section extending in the front-to-back direction and is in a substantially rectangular shape that is long in the left-to-right direction. Therefore, the rigidity of the lower portion 21b of the inner panel 21 is increased. The lower portion 23b of the reinforcing member 23 and the lower portion 21b of the inner panel 21 are connected by a sliding clip (not shown).

[0104] like Fig. 9 As shown, the rear closed cross-section portion 26 is formed between the reinforcing member 23 and the rear portion 21c of the inner panel 21. The rear closed cross-section portion 26 is a closed cross-section extending in the vertical direction and is in a substantially rectangular shape that is elongated in the left-right direction. Therefore, the rigidity of the rear portion 21c of the inner panel 21 is increased. In this embodiment, the vertical dimension of the rear closed cross-section portion 26 is shorter than that of the front closed cross-section portion 24.

[0105] <Door beam>

[0106] like Figure 6As shown, the door beam 72 is a door reinforcement member for reinforcing the rear door 2. The door beam 72 is arranged slightly obliquely backward and downward in the front-rear direction relative to the rear door 2. The linear door beam 72 and the reinforcement member 23 in an L-shaped shape when viewed from the side form a triangular truss structure when viewed from the side. The front end 72a of the door beam 72 is detachably mounted to the reinforcement member 23 provided at the front portion 21a of the inner panel 21 via a beam bracket 722.

[0107] The rear end portion 72b of the door beam 72 is detachably mounted to the rear portion 21c of the inner panel 21 and the rear portion 23c of the reinforcement member 23 via a beam bracket 723. The door beam 72 includes a beam body 721, a front beam bracket 722, and a rear beam bracket 723.

[0108] The cross beam body 721 and the cross beam body 711 of the front door 1 (see Figure 1 ) is also made of metal pipe.

[0109] The front cross beam bracket 722 is a bracket made of a metal plate for attaching the front end portion 72a of the cross beam body 721 to the front portion 23a of the reinforcement member 23. The cross beam bracket 722 has an engagement groove 722a for engaging the front end portion 72a of the door cross beam 72 and a bolt setting hole (not shown) for setting a fixing member 724 for detachably fixing the cross beam bracket 722 to the front portion 23a of the reinforcement member 23.

[0110] like Fig.10 As shown in FIG. 1 , the rear cross beam bracket 723 is a bracket made of a metal plate for mounting the rear end portion 72b of the cross beam body 721 to the rear portion 21c of the inner panel 21 and the rear portion 23c of the reinforcing member 23. The cross beam bracket 723 has an engagement groove 723a for engaging the rear end portion 72b of the door cross beam 72 and a fixing member 725 (see FIG. 1 ) for fixing the cross beam bracket 723 to the rear portion 21c of the inner panel 21 and the rear portion 23c of the reinforcing member 23. Fig.11 ) for setting bolts (not shown).

[0111] <Surface reinforcement>

[0112] like Figure 6 As shown, the skin reinforcement 82 is a door reinforcement member for reinforcing the rear door 2, similarly to the skin reinforcement 81 of the front door 1. The skin reinforcement 82 is composed of, for example, a metal plate member extending in the front-rear direction. The front end 82a of the skin reinforcement 82 is fixed to the front portion 23a of the reinforcement member 23, and the rear end 82b is fixed to the rear portion 21c of the inner panel 21.

[0113] <Skin reinforcement>

[0114] The upper skin reinforcement 92 is a metal reinforcement plate member disposed at the lower portion of the vehicle outer side of the window opening 21e of the inner panel 21. The upper skin reinforcement 92 is fixed in the range from the front portion 23a of the reinforcement member 23 to the rear portion 21c of the inner panel 21. The upper skin reinforcement 92 is disposed between the inner panel 21 and the outer panel 22.

[0115] <Surface window frame reinforcement>

[0116] The skin window frame reinforcement 94 is a metal reinforcing plate member disposed throughout the front portion of the window frame portion 21g of the inner panel 21. The skin window frame reinforcement 94 is provided in the range from the front upper end to the front lower end of the window frame portion 21g.

[0117] <Door hinge>

[0118] like Figure 6 As shown, the door hinges 32, 32 are hinge members for rotatably mounting the rear door 2 on a front pillar (not shown). The door hinges 32, 32 are mounted on the upper and lower portions of the front end of the rear door 2, respectively.

[0119] <Outer panel>

[0120] The outer panel 22 is a thin plate-shaped resin member disposed on the vehicle outer side of the inner panel 21. The outer panel 22 is detachably attached to the inner panel 21.

[0121] 《Effects》

[0122] The vehicle door structure 100 of the present embodiment is basically configured as described above, and the effects of the vehicle door structure 100 will be described below.

[0123] Like this, Figure 1 and Figure 6 The door D shown in the figure is recyclable and lightweight by detachably attaching the resin outer panels 12 and 22 to the inner panels 11 and 21, and is easy to recycle, and the rigidity is improved by the reinforcing members 13 and 23. Therefore, the vehicle door structure 100 according to the embodiment of the present invention helps solve the environmental problem which is a global issue, and further contributes greatly to helping achieve the Sustainable Development Goals (SDGs).

[0124] like Figure 1 or Figure 6As shown, the vehicle door structure 100 includes an inner panel 11, 21, an outer panel 12, 22 arranged on the outer side of the inner panel 11, 21, and a reinforcing member 13, 23 arranged between the inner panel 11, 21 and the outer panel 12, 22, and the reinforcing member 13, 23 is continuously arranged across the front portion 11a, 21a, the lower portion 11b, 21b and the rear portion 11c, 21c of the inner panel 11, 21.

[0125] According to this configuration, the reinforcing members 13, 23 extend continuously from the front portions 11a, 21 to the rear portions 11c, 21c via the lower portions 11b, 21b on the inner panels 11, 21. Therefore, since the lower portions of the inner panels 11, 21 can be reinforced in the range from the front portions 11a, 21a to the rear portions 11c, 21c, the rigidity of the entire lower portion of the door D can be improved.

[0126] In addition, if Figure 1 or Figure 6 As shown, the reinforcing members 13, 23 form front closed cross-section portions 14, 24 between the front portions 11a, 21a of the inner panels 11, 21 (see Figure 3 and Figure 7 ), and a lower closed cross-section portion 15, 25 is formed between the lower portion 11b, 21b of the inner panel 11, 21 (see Figure 4 and Figure 8 ), and the rear closed cross-sections 16, 26 are formed between the rear portions 11c, 21c of the inner panels 11, 21 (see Figure 5 and Fig. 9 ).

[0127] According to this configuration, the reinforcing members 13, 23 form the front closed cross-section portions 14, 24 together with the inner panels 11, 21 (see Figure 3 and Figure 7 ), lower closed cross-section portion 15, 25 (see Figure 4 and Figure 8 ) and the rear closed cross-section portions 16, 26 (see Figure 5 and Fig. 9 Thus, the front door 1 and the rear door 2 are formed between the reinforcement members 13, 23 and the inner panels 11, 21, forming a continuous closed cross section extending from the front portion 11a, 21a via the lower portion 11b, 21b to the rear portion 11c, 21c, thereby effectively improving the rigidity of the lower portion of the door D.

[0128] In addition, if Figure 1 As shown, the inner panel 11 has a window opening portion 11 e at an upper portion 11 d , and the reinforcing member 13 extends to at least a portion of the periphery of the window opening portion 11 e .

[0129] According to this configuration, the reinforcing member 13 extends to at least a portion of the periphery of the window opening 11e, thereby reinforcing the window frame 11g of the window opening 11e. Therefore, the reinforcing member 13 also has the function of a window frame reinforcing member for reinforcing the window frame 11g, so a dedicated window frame reinforcing member is not required, the number of components can be reduced, and weight reduction can be achieved.

[0130] In addition, if Figure 1 and Figure 6 As shown, the vehicle door structure 100 includes door beams 71, 72, and the front end portions 71a, 72a and the rear end portions 71b, 72b of the door beams 71, 72 are fixed to the front portions 11a, 21a and the rear portions 11c, 21c of the inner panels 11, 21 directly or through the reinforcement members 13, 23. The front end portions 71a, 72a and the rear end portions 71b, 72b of the door beams 71, 72 are fixed to the reinforcement members 13, 23 or are arranged adjacent to the reinforcement members 13, 23.

[0131] According to this configuration, the reinforcement members 13, 23 are arranged so as to span from the front portions 11a, 21a to the rear portions 11c, 21c, and the door beams 71, 72 are connected to the front portions 11a, 21a and the rear portions 11c, 21c. Therefore, the reinforcement members 13, 23 and the door beams 71, 72 can form a triangular truss structure when viewed from the side, thereby further improving the rigidity of the lower portion of the door.

[0132] In addition, if Figure 6 and Fig.10 As shown, both the front end portion 72 a and the rear end portion 72 b of the door beam 72 are fixed to the reinforcement member 23 .

[0133] According to this configuration, the front end portion 72a and the rear end portion 72b of the door beam 72 are fixed to the reinforcement member 23, so that a truss structure can be formed by the reinforcement member 23 and the door beam 72. Therefore, the rigidity of the door lower portion can be further improved.

[0134] In addition, if Figure 1 , Figure 2 and Figure 6 As shown, the outer panels 12 , 22 and the door beams 71 , 72 are detachably mounted to the inner panels 11 , 21 .

[0135] According to this configuration, the outer panels 12, 22 and the door beams 71, 72 can be detached from the inner panels 11, 21, and thus can be removed from the inner panels 11, 21. Therefore, the assembly parts such as the window regulator 41 can be mounted on the door D from the outside of the vehicle, thereby improving the installation workability of the work for mounting the assembly parts on the door D. The assembly parts can be mounted on the door D from the outside of the vehicle, thereby eliminating the need to form an operation hole for mounting the assembly parts on the inner panels 11, 21, thereby improving the rigidity of the inner panels 11, 21.

[0136] [Modifications]

[0137] It should be noted that the present invention is not limited to the above-mentioned embodiments, and various modifications and changes can be made within the scope of the technical concept. The present invention also includes the above-mentioned modifications and changes.

[0138] In the aforementioned embodiment, if Figure 1 and Figure 6 As shown, as an example of the door D, a hinged door having door hinges 31, 32 is used as an example, but any opening and closing body can be provided with inner panels 11, 21 and outer panels 12, 22, and there is no particular limitation. The door D may also be a sliding door or a gull-wing door, for example.

[0139] Furthermore, as an example, the case where the outer panels 12 and 22 are formed of a resin plate member has been described, but the material is not particularly limited, and a light alloy such as an aluminum alloy or a magnesium alloy may be used.

Claims

1. A vehicle door structure, comprising: Inner panels; An outer panel disposed on the vehicle outer side of the inner panel; as well as a reinforcing member disposed between the inner panel and the outer panel, The vehicle door structure is characterized in that: The reinforcing member is continuously provided across the front portion, the lower portion, and the rear portion of the inner panel.

2. The vehicle door structure according to claim 1, characterized in that: The reinforcing component comprises: a front closed cross-section portion formed between the front portion of the inner panel; a lower closed cross-section portion formed between the lower portion of the inner panel; and A rear closed cross-section portion is formed between the rear portion of the inner panel and the rear portion of the inner panel.

3. The vehicle door structure according to claim 1, characterized in that: The inner panel has a window opening at the upper portion. The reinforcement member extends to at least a portion of a periphery of the window opening.

4. The vehicle door structure according to claim 1, characterized in that: A door beam is provided, wherein the front end and the rear end of the door beam are respectively fixed to the front and the rear of the inner panel directly or via the reinforcement member. The front end portion and the rear end portion of the door beam are fixed to the reinforcement member or are arranged adjacent to the reinforcement member.

5. The vehicle door structure according to claim 4, characterized in that: Both the front end portion and the rear end portion of the door beam are fixed to the reinforcement member.

6. The vehicle door structure according to claim 4 or 5, characterized in that: The outer panel and the door beam are detachably mounted on the inner panel.

Images