Door structure of a vehicle

Abstract

An object of the present invention is to provide a door structure for a vehicle that can suppress local deformation at the boundary portion of an outer door panel. The door structure includes: an outer door panel (12) having a convex portion (28) protruding outward in the vehicle width direction, a concave portion (29) formed by separating from the convex portion (28) and recessing inward in the vehicle width direction, and a boundary portion (α) between the convex portion (28) and the concave portion (29); a plate reinforcement (30) fixed to the inner surface of the outer door panel (12) in the vehicle width direction; wherein the plate reinforcement (30) includes: a first frame portion (31) extending in the vehicle front-rear direction; and a second frame portion (32) provided at the boundary portion (α) and capable of transmitting a load to the first frame portion (31) when an input in the vehicle width direction inner side direction enters the boundary portion (α).

Description

Technical Field

[0001] The present invention relates to a door structure of a vehicle, and more particularly to a door structure of a vehicle having an outer door panel and a panel reinforcement. The outer door panel has a convex portion protruding outward in the vehicle width direction, a concave portion separated from the convex portion and recessed inward in the vehicle width direction, and a boundary portion between the convex portion and the concave portion. The panel reinforcement is fixed to the inner surface of the outer door panel in the vehicle width direction. Background Art

[0002] Conventionally, a structure has been known in which a panel reinforcement is fixed to the inner surface of an outer door panel in the vehicle width direction in order to suppress local deformation when a user touches the flat portion of the outer door panel as an outer door panel with a hand (see Patent Document 1).

[0003] On the other hand, when a convex portion protruding outward in the vehicle width direction and a concave portion recessed inward in the vehicle width direction are provided adjacent to each other on the outer door panel, a boundary portion is generated between the convex portion and the concave portion, and due to the design of the door, such a structure has the following problems.

[0004] For example, when waxing the outer door panel, the user presses the outer door panel while applying a certain degree of force to the outer door panel. At this time, since the concave area is easily deformed by the load toward the inner side in the vehicle width direction, the boundary portion between the convex portion and the concave portion becomes an area vulnerable to local deformation, and it is difficult to achieve a high-class feeling while ensuring a delicate design.

[0005] Prior Art Documents

[0006] Patent Documents

[0007] Patent Document 1: Japanese Unexamined Patent Application Publication No. 2021-45995. Summary of the Invention

[0008] Problems to be Solved by the Invention

[0009] Therefore, an object of the present invention is to provide a door structure of a vehicle that can suppress local deformation of the boundary portion of an outer door panel.

[0010] Means for Solving the Problems

[0011] The door structure of a vehicle according to the present invention includes: an outer door panel having a convex portion protruding outward in the vehicle width direction, a concave portion separated from the convex portion and recessed inward in the vehicle width direction, and a boundary portion between the convex portion and the concave portion; a panel reinforcement fixed to the inner surface of the outer door panel in the vehicle width direction; wherein the panel reinforcement includes: a first frame portion extending in the vehicle front-rear direction; a second frame portion provided at the boundary portion and capable of transmitting a load to the first frame portion when a load in the inner side direction in the vehicle width direction is input to the boundary portion.

[0012] The convex part refers to the vertex (point) or the top area (surface) that protrudes the most outward in the vehicle width direction in the outer door panel, and the concave part refers to the vertex (point) or the top area (surface) that protrudes the most inward in the vehicle width direction in the outer door panel.

[0013] In addition, the above-mentioned load does not refer to an impact load, but rather, for example, the load when the user presses the outer door panel while applying a certain degree of force to the outer door panel when waxing the outer door panel.

[0014] According to the present invention, since the concave part is formed by being recessed inward in the vehicle width direction, the boundary part is likely to deform when a load is input in the vehicle width direction inward, but the second frame part provided at the boundary part will transfer the load to the first frame part, so local deformation of the boundary part can be suppressed.

[0015] As one aspect of the form of the present invention, it can be designed that the first frame part has a ridge line part that extends substantially linearly.

[0016] The present invention can transfer the load transferred from the second frame part to the first frame part through the ridge line part with high rigidity in the first frame part to the fixing part of the plate reinforcement.

[0017] As one aspect of the form of the present invention, it can be designed that the convex part and the concave part of the outer door panel extend in the vehicle front-rear direction, and the boundary part between the convex part and the concave part extends in the vehicle front-rear direction at a height substantially the same as the height where the door outside handle is provided.

[0018] The present invention sets the position of the boundary part between the convex part and the concave part at a height substantially the same as the door outside handle, so the area that is very likely to be touched by the user can be effectively strengthened.

[0019] As one aspect of the form of the present invention, it can be designed that the second frame part includes: a front-rear direction frame part that extends in the vehicle front-rear direction in a manner capable of transferring a load at the height position where the door outside handle is provided; an up-down direction frame part that connects the first frame part and the front-rear direction frame part in the up-down direction.

[0020] According to the present invention, since the front-rear direction frame part exists at the height position where the door outside handle is provided, the load can be transferred from the front-rear direction frame part at the door outside handle position to the first frame part through the up-down direction frame part more efficiently.

[0021] As one aspect of the form of the present invention, it can be designed that the second frame part has a truss part formed by the front-rear direction frame part and the up-down direction frame part and having a truss shape.

[0022] According to the present invention, since the truss portion has a good effect of dispersing and transmitting the load, the load transmission efficiency can be improved.

[0023] In one aspect of the form of the present invention, it can be designed to include an adhesive, and the adhesive is disposed near the vertex of the truss portion of the second skeleton portion for bonding the second skeleton portion and the outer door panel.

[0024] According to the present invention, the vicinity of the vertex of the truss portion is a portion that can efficiently disperse the load, and is most suitable as the bonding portion for bonding the second skeleton portion to the outer door panel. Thereby, the load transmission efficiency of the second skeleton portion can be improved.

[0025] In one aspect of the form of the present invention, it can be designed such that the vertex portion of the truss portion is provided on an imaginary line in the vehicle front-rear direction that connects the front end portion and the rear end portion of the door outside handle and extends forward in the vehicle.

[0026] According to the present invention, since the vertex portion of the truss portion is provided on the imaginary line of the door outside handle, the load can be effectively dispersed in the area where the user is most likely to touch with the hand.

[0027] In one aspect of the form of the present invention, it can be designed such that the first skeleton portion and the second skeleton portion are formed in a substantially U-shaped cross-section.

[0028] According to the present invention, the cross-sectional shape can increase the cross-sectional moment of inertia of the first skeleton portion and the second skeleton portion, and can improve the bending stiffness of the plate reinforcement member.

[0029] In one aspect of the form of the present invention, it can be designed such that the front end portion and the rear end portion of the first skeleton portion are fixed near the ridge lines of the front edge portion and the rear edge portion of the inner door panel.

[0030] In the present invention, the front and rear end portions of the first skeleton portion are fixed near the ridge lines with high rigidity in the inner door panel, so that the load of the first skeleton portion can be effectively dispersed and transmitted to the inner door panel.

[0031] In one aspect of the form of the present invention, it can be designed such that at least one of the front end portion and the rear end portion of the first skeleton portion is fixed to a reinforcing member provided on the inner door panel.

[0032] In the present invention, at least one of the front end portion and the rear end portion of the first skeleton portion is fixed to a reinforcing member with high rigidity, so that the load of the first skeleton portion can be effectively dispersed and transmitted to the inner door panel through the reinforcing member.

[0033] Advantages of the Invention

[0034] The present invention has the technical effect of being able to suppress local deformation at the boundary portion of the outer door panel. Description of the Drawings

[0035] Figure 1 A side view of the door structure of the vehicle as viewed from the outside of the right side of the vehicle;

[0036] Figure 2 A side view of the state where the outer door panel is removed;

[0037] Figure 3 An explanatory diagram of a convex region including a convex portion and a concave region including a concave portion;

[0038] Figure 4 An enlarged view showing the panel reinforcement alone;

[0039] Figure 5 A perspective view showing the panel reinforcement alone;

[0040] Figure 6 Along Figure 2 A cross-sectional view taken along line A-A;

[0041] Figure 7 (a) is a cross-sectional view taken along line B-B, Figure 2 and (b) is a cross-sectional view taken along line C-C; Figure 7 Along Figure 2 A cross-sectional view taken along line C-C;

[0042] Figure 8 (a) is a cross-sectional view taken along line D-D, Figure 2 and (b) is a cross-sectional view taken along line E-E; Figure 8 Along Figure 2 A cross-sectional view taken along line E-E;

[0043] Figure 9 Along Figure 2 A cross-sectional view taken along line G-G. Detailed implementation mode

[0044] The following technical solutions are adopted to achieve the purpose of suppressing local deformation of the boundary part of the outer door panel: A door structure of a vehicle, which includes: an outer door panel, having a convex portion protruding outward in the vehicle width direction, a concave portion formed by separating from the convex portion and recessing inward in the vehicle width direction, and a boundary part between the convex portion and the concave portion; a panel reinforcement, fixed to the inner side surface of the outer door panel in the vehicle width direction; wherein, the panel reinforcement includes: a first skeleton part, extending in the vehicle front-rear direction; a second skeleton part, provided at the boundary part, and capable of transmitting a load to the first skeleton part when an input in the vehicle width direction inner side enters the boundary part.

[0045] The following elaborates on an embodiment of the present invention in detail based on the drawings.

[0046] The drawings show the door structure of the vehicle, Figure 1 which is a side view of the door structure of the vehicle as viewed from the outside of the right side of the vehicle, Figure 2 which is Figure 1Side view of the door structure with the outer door panel removed Figure 3 It is an explanatory diagram of a convex region including a convex portion and a concave region including a concave portion

[0047] Figure 4 It is an enlarged view showing the panel reinforcement alone Figure 5 It is an oblique view showing the panel reinforcement alone Figure 6 It is along Figure 2 Cross-sectional view taken along line A-A Figure 7 (a) is a cross-sectional view taken along line B-B Figure 2 of Figure 7 (b) is a cross-sectional view taken along line C-C Figure 2 of Figure 8 (a) is a cross-sectional view taken along line D-D Figure 2 of Figure 8 (b) is a cross-sectional view taken along line E-E Figure 2 of Figure 9 It is along Figure 2 Cross-sectional view taken along line G-G

[0048] As Figure 1 shown, there is provided a door 10 (front door) as a side door, and the side door opens and closes a door opening which is an access opening for a front seat occupant. As Figure 1 shown, the door 10 includes: an outside door handle 11; a door mirror (not shown), which abuts against the outer side surface in the vehicle width direction of the outer door panel 12 by using a door mirror through hole formed as an opening in the front side portion near the waist line portion BL of the outer door panel 12; a window glass; and a window frame portion 13 (door sash).

[0049] As Figure 2 shown, the inner door panel 14 and Figure 1 the outer door panel 12 shown are integrally connected by hemming or the like to form the door 10, and the door 10 has a front edge portion 10A, a lower edge portion 10B, and a rear edge portion 10C where upper and lower pairs of door hinge brackets 15, 16 are installed. The door 10 is installed on a hinge pillar as a vehicle body in a manner capable of opening and closing via the upper and lower pairs of door hinge brackets 15, 16.

[0050] Furthermore, a hinge reinforcement 17 extending in the vertical direction is joined and fixed to the door inner space side of the inner door panel 14 at the front edge portion 10A corresponding to the door hinge brackets 15, 16, and a locking reinforcement 18 is joined and fixed to the door inner space side of the inner door panel 14 at the rear edge portion 10C.

[0051] There is also provided a waist line reinforcement inner member 19 extending in the vehicle front-rear direction along the waist line portion BL (refer to Figure 7 , Figure 8 , Figure 9), and the inner waistline reinforcement member 19 and the outer waistline reinforcement member 20 are used to reinforce the strength of the edge portion of the entrance and exit of the door and window glass.

[0052] As Figure 7 , Figure 8 , Figure 9 shown, the inner waistline reinforcement member 19 is provided at the upper part on the outside in the vehicle width direction of the inner door panel 14. As Figure 2 , Figure 7 , Figure 8 , Figure 9 shown, the outer waistline reinforcement member 20 is provided at the upper part on the inside in the vehicle width direction of the outer door panel 12.

[0053] The up-and-down movement of the front edge portion and the rear edge portion of the door and window glass is guided by the front and rear guide rails 21 and 22 provided in the inner space of the door 10. In addition, a bumper bar 23 is provided in a slant shape between the upper part of the front edge portion 10A and the rear part of the lower edge portion 10B of the door 10.

[0054] The bumper bar 23 is formed of a rigid member, and flange portions 23a and 23b are integrally formed at the front end portion and the rear end portion thereof. The front flange portion 23a located at the front side is joined to the upper part of the hinge reinforcement member 17. The rear flange portion 23b located at the rear side is joined to the bumper bar reinforcement member 24 (refer to Figure 8 (b)). Thus, the bumper bar 23 is arranged in a rearward-tilted state where the rear end is located below the front end. The rearward-tilted arrangement structure of the bumper bar 23 receives lateral collision loads within a relatively wide range.

[0055] In addition, several (two in this embodiment) reinforcing ribs 23c and 23c extending in the vehicle front-rear direction are integrally formed on the bumper bar 23. Openings 25 and 26 formed in an open shape are formed in the main body portion of the inner door panel 14. These openings 25 and 26 are used for arranging door modules or speakers.

[0056] In addition, as Figure 7 (a) shown, at the position where the rearview mirror is installed, a mirror bracket 27 corresponding to the mirror base of the rearview mirror is provided on the inside in the vehicle width direction of the outer waistline reinforcement member 20.

[0057] As Figure 1 , Figure 3 shown, the outer door panel 12 includes: a convex portion 28 protruding outward in the vehicle width direction; a concave portion 29 formed by separating downward from the convex portion 28 and recessing inward in the vehicle width direction; a boundary portion α (here, the boundary portion refers to the wide portion, the zone portion) between the convex portion 28 and the concave portion 29.

[0058] In this embodiment, the convex portion 28 is formed substantially parallel to the waistline portion BL at the upper part of the outer door panel 12, and the convex portion 28 is continuously formed in the vehicle front-rear direction within the entire vehicle front-rear length range of the outer door panel 12.

[0059] In addition, the concave portion 29 is formed in an inclined shape with the front edge portion 10A side position being lower and the position becoming higher toward the vehicle rearward position at the middle portion in the up-down direction of the outer door panel 12, and the concave portion 29 is continuously and obliquely formed in the vehicle front-rear direction within the entire vehicle front-rear length range of the outer door panel 12.

[0060] Furthermore, the upper and lower dimensions of the front edge portion 10A side of the boundary portion α located between the convex portion 28 and the concave portion 29 are long, and the upper and lower dimensions become shorter toward the rear edge portion 10C side.

[0061] The convex portion 28 is Figure 3 the vertex line that protrudes most toward the vehicle width direction outside in the convex region U outlined by the imaginary line, and the concave portion 29 is Figure 3 the vertex line that depresses most toward the vehicle width direction inside in the concave region V outlined by the imaginary line. In this embodiment, the concave region V is located below the convex region U, and a convex region W in a relatively small right triangle shape is located at the lower rear portion of the concave region V with respect to the respective regions U and V.

[0062] Here, the upper end of the region of the convex region U coincides with the waistline portion BL, and the convex region U includes the inner member 19 of the waistline reinforcement, the outer member 20 of the waistline reinforcement, the mirror bracket 27, the upper door hinge bracket 15, the upper side portion of the hinge reinforcement 17, and a part of the upper side of the openings 25 and 26, and is formed facing these respective elements 19, 20, 27, 15, 25, and 26.

[0063] In addition, the concave region V includes the locking reinforcement 18, the lower door hinge bracket 16, the lower side portion of the hinge reinforcement 17, and the lower side more than half portion of the openings 25 and 26, and is formed facing the elements 18, 16, 17, 25, and 26.

[0064] Furthermore, a boundary line β is formed between the upper convex region U and the lower concave region V. As Figure 3 shown, the boundary line β is formed in an inclined shape with the upper and lower positions of the front edge portion 10A side being lower and the upper and lower positions becoming higher toward the rear edge portion 10C side. As Figure 1 、 Figure 2 shown, there is a plate reinforcement 30 fixed to the vehicle width direction inner side surface of the outer door panel 12 and extending in the vehicle front-rear direction.

[0065] In summary, the door structure of the vehicle according to the above embodiments includes: an outer door panel 12 having a convex portion 28 protruding outward in the vehicle width direction, a concave portion 29 formed by being separated from the convex portion 28 and recessed inward in the vehicle width direction, and a boundary portion α between the convex portion 28 and the concave portion 29; and a panel reinforcement 30 fixed to the inner surface in the vehicle width direction of the outer door panel 12.

[0066] The above-mentioned panel reinforcement 30 is adhesively fixed to the inner surface in the vehicle width direction of the outer door panel 12 by adhesives a to i described later, and as Figure 6 shown, it is joined and fixed between the front and rear step portions (Stage section) 14c and 14g of the inner door panel 14.

[0067] That is, on the front edge portion 10A side of the door 10, the inner door panel 14 has a flange portion 14a clamped and fixed by the hemming portion of the outer door panel 12. And, there is a protruding portion 14b extending inward in the vehicle width direction from the rear end of the flange portion 14a, and there is also a step portion 14c extending rearward in the vehicle direction from the protruding portion 14b, and further there is a front edge portion 14d extending inward in the vehicle width direction from the rear end of the step portion 14c. Ridge lines X1 and X2 extending in the vertical direction are formed on the front and rear portions of the step portion 14c.

[0068] On the rear edge portion 10C side of the door 10, the inner door panel 14 has a flange portion 14e clamped and fixed by the hemming portion of the outer door panel 12. And, there is a protruding portion 14f extending inward in the vehicle width direction from the front end of the flange portion 14e, and there is also a step portion 14g extending forward in the vehicle direction from the protruding portion 14f, and further there is a rear edge portion 14h extending inward in the vehicle width direction from the front end of the step portion 14g. Ridge lines X3 and X4 extending in the vertical direction are formed on the front and rear portions of the step portion 14g.

[0069] As Figure 2 、 Figure 6 shown, the front end portion of the panel reinforcement 30 (refer to the front end portion 31f of the first frame portion 31 described later) is fixed to the step portion 14c of the inner door panel 14 at the front edge portion 10A directly above the upper door hinge bracket 15. As shown in this figure, the rear end portion of the panel reinforcement 30 (refer to the rear end portion 31r of the first frame portion 31 described later) is fixed to the step portion 14g of the inner door panel 14 at the rear edge portion 10C directly below the latch reinforcement 18.

[0070] Ridge lines X1, X2, X3, and X4 extending in the vertical direction are formed on the front and rear of the respective front and rear step portions 14c and 14g, and the front end portion and the rear end portion of the panel reinforcement 30 are fixed near the ridge lines X1, X2, X3, and X4 at the front edge portion 10A and the rear edge portion 10C of the inner door panel 14.

[0071] Here, the front end of the plate reinforcement 30, the stepped portion 14c of the inner door panel 14, and the hinge reinforcement 17 are welded and fixed together in three pieces. The plate thickness of the plate reinforcement 30 is 0.5 mm t , the plate thickness of the outer door panel 12 is 0.65 mm t , the plate thickness of the hinge reinforcement 17 is 1.6 mm t . The plate thickness is not limited to the above values, but by the three-piece welding structure of the plate reinforcement 30 with a relatively small plate thickness, the hinge reinforcement 17 with a relatively large plate thickness, and the inner door panel 14, the effect of fully transmitting and dispersing the load can be ensured.

[0072] And, as Figures 2 to 5 shown, the plate reinforcement 30 includes: a first frame portion 31 extending in the vehicle front-rear direction; a second frame portion 32 provided at the boundary portion α and capable of transmitting a load to the first frame portion 31 when a load in the inner direction of the vehicle width is input to the boundary portion α.

[0073] As Figures 2 to 5 shown, in this embodiment, the first frame portion 31 is located below the second frame portion 32. By providing the second frame portion 32 that transmits the input load in the inner direction of the vehicle width to the first frame portion 31, the following technical effects can be obtained.

[0074] That is, the concave portion 29 is recessed inward in the vehicle width direction, so the boundary portion α is easily deformed when a load in the inner direction of the vehicle width is input. However, the second frame portion 32 provided at the boundary portion α transmits the load to the first frame portion 31, so local deformation of the boundary portion α can be suppressed.

[0075] As Figures 7 to 9 shown, the first frame portion 31 has an upper wall 31a, an inner wall 31b extending downward from the inner end in the vehicle width direction of the upper wall 31a, a lower wall 31c extending outward in the vehicle width direction from the lower end of the inner wall 31b, and a lower flange 31d extending downward from the outer end in the vehicle width direction of the lower wall 31c, and is formed in a substantially U-shaped cross section in the vertical direction.

[0076] Thereby, ridge line portions X5, X6, X7, X8 that extend continuously in a substantially straight line in the vehicle front-rear direction are formed on the inner and outer portions of the upper wall 31a and the lower wall 31c (refer to Figure 4 , Figure 5 ).

[0077] That is, the first frame part 31 has four ridge line parts X5 to X8 that extend substantially linearly. Thus, the load transmitted from the second frame part 32 to the first frame part 31 is transmitted to the front and rear fixing parts of the plate reinforcement 30, that is, the stepped parts 14c and 14g of the inner door panel 14, through several ridge line parts X5 to X8 with high rigidity in the first frame part 31, especially through the two upper ridge line parts X5 and X6, and is transmitted to the highly rigid hinge reinforcement 17 especially on the front side.

[0078] As Figure 1 shown, the convex part 28 and the concave part 29 of the outer door panel 12 extend in the vehicle front-rear direction, and the boundary part α between the convex part 28 and the concave part 29 extends in the vehicle front-rear direction at a height substantially the same as the height where the door outside handle 11 is provided. As described above, the second frame part 32 of the plate reinforcement 30 is provided at the boundary part α.

[0079] In this way, by setting the position of the boundary part α between the convex part 28 and the concave part 29 at a height substantially the same as that of the door outside handle 11, the area that is very likely to be touched by the user can be more effectively reinforced by the second frame part 32 of the plate reinforcement 30.

[0080] As Figure 1 、 Figure 4 、 Figure 5 shown, the above-mentioned second frame part 32 has, at the height position where the door outside handle 11 is provided: a front-rear direction frame part 33 that extends in the vehicle front-rear direction in a manner capable of transmitting a load; and several first to third up-down direction frame parts 34, 35, and 36 that connect the first frame part 31 and the front-rear direction frame part 33 in the up-down direction.

[0081] As Figure 2 、 Figure 4 shown, the above-mentioned front-rear direction frame part 33 has: a front part 33a that extends substantially horizontally in the front-rear direction from the front end part of the plate reinforcement 30 to the upper end part of the second up-down direction frame part 35; a middle part 33b that inclines rearward at about 20 degrees in a manner that the more rearward, the more downward from the rear end part of the front part 33a to the upper end part of the third up-down direction frame part 36; and a rear part 33c that inclines rearward at about 30 degrees in a manner that the more rearward, the more downward from the rear end part of the middle part 33b to the rear end part of the plate reinforcement 30.

[0082] In this way, the front-rear direction frame part 33 exists at the height position where the door outside handle 11 is provided, so that the load can be more efficiently transmitted from the front-rear direction frame part 33 at the position of the door outside handle 11 to the first frame part 31 through the first to third up-down direction frame parts 34, 35, and 36.

[0083] As Figure 4 、 Figure 5As shown, the above-described second frame portion 32 includes several first to third truss portions T1, T2, and T3 formed in a truss shape by a front-rear direction frame portion 33 and up-down direction frame portions 34, 35, and 36. In this embodiment, three of the truss portions T1, T2, and T3 are formed, but the number of formed truss portions is not limited to this.

[0084] Here, the above-described second frame portion 32 includes a bottom edge portion frame portion 37. The bottom edge portion frame portion 37 forms the bottom edge portions of the truss portions T1 and T3, and integrally connects between the rear portion 33c of the front-rear direction frame portion 33 and the first up-down direction frame portion 34 in the vehicle front-rear direction.

[0085] The first truss portion T1 is surrounded by the respective elements 33a, 35, and 37, and a triangular opening t1 is formed between the above-described respective elements 33a, 35, and 37. The second truss portion T2 is surrounded by the respective elements 33b, 35, and 36, and a triangular opening t2 is formed between the above-described respective elements 33b, 35, and 36. The third truss portion T3 is surrounded by the respective elements 33c, 36, and 37, and a triangular opening t3 is formed between the above-described respective elements 33c, 36, and 37.

[0086] Thus, the above-described second frame portion 32 includes the truss portions T1, T2, and T3 formed in a truss shape. The truss portions T1, T2, and T3 have a good effect of dispersing and transmitting loads, and will improve the load transmission efficiency from the second frame portion 32 to the first frame portion 31.

[0087] For convenience of illustration on Figure 2 、 Figure 3 As shown by the hollow circle marks, the plate reinforcement 30 and the outer door panel 12 are adhesively fixed by adhesives a to i. The above-described respective adhesives a to i are respectively provided at intervals in the vehicle front-rear direction and the up-down direction.

[0088] Adhesives a and b are used to adhesively fix the lower flange 31d of the first frame portion 31 to the outer door panel 12. Adhesives c, d, e, and f are used to adhesively fix the front-rear direction frame portion 33 of the second frame portion 32 to the outer door panel 12. Adhesive g is used to adhesively fix the second up-down direction frame portion 35 to the outer door panel 12. In addition, adhesives h and i are used to adhesively fix the bottom edge portion frame portion 37 at the position corresponding to the bottom edge of the first truss portion T1 to the outer door panel 12.

[0089] As Figure 2 、 Figure 3 、 Figure 9 As shown, among the above-described respective adhesives a to i, adhesive f is disposed at the vertex of the third truss portion T3 of the second frame portion 32 (the vertex refers to the intersection of two adjacent sides of a polygon), and is used to bond the second frame portion 32 and the outer door panel 12.

[0090] In addition, as Figure 2 and Figure 3 shown, among the above adhesives a to i, adhesives e and g are disposed near the vertices of the second truss portion T2 of the second frame portion 32 for bonding the second frame portion 32 and the outer door panel 12.

[0091] Thus, adhesives f, e, and g are provided, and the adhesives f, e, and g are disposed at the vertices of the third truss portion T3 of the second frame portion 32 and near the vertices of the second truss portion T2 for bonding the second frame portion 32 and the outer door panel 12.

[0092] The vertices and the portions near the vertices of the above truss portions T2 and T3 are portions where loads can be efficiently dispersed, and are most suitable as the bonding portions for bonding the second frame portion 32 to the outer door panel 12, thereby improving the load transfer efficiency of the second frame portion 32.

[0093] As Figure 1 and Figure 2 shown, among several truss portions T1, T2, and T3, the vertex portion of the second truss portion T2 is provided on an imaginary vehicle longitudinal line γ that connects the front end portion 11a and the rear end portion 11b of the door outside handle 11 and extends forward in the vehicle.

[0094] Thus, by providing the vertex portion of the second truss portion T2 on the above imaginary line γ of the door outside handle 11, loads are effectively dispersed in the area where the user is most likely to touch with a hand.

[0095] As Figure 7 and Figure 8 and Figure 9 shown in the cross-sectional views, the first frame portion 31 and the second frame portion 32 are formed in a substantially U-shaped cross-section. Specifically, the first frame portion 31 is formed in a substantially U-shaped cross-section with the open side facing the outside in the vehicle width direction, and the second frame portion 32 is formed in a substantially U-shaped cross-section with the open side facing the inside in the vehicle width direction.

[0096] More specifically, the first frame portion 31 is formed in a substantially U-shaped cross-section in the vertical direction, and the second frame portion 32 is formed in a substantially U-shaped cross-section in the direction orthogonal to the extending directions of the front-rear direction frame portion 33 and the vertical direction frame portions 34, 35, and 36 that constitute the second frame portion 32.

[0097] The above substantially U-shaped cross-sectional shape increases the moment of inertia of the cross-section of the first frame portion 31 and the second frame portion 32 (generally represented by I x = ∫y 2 dA, which reflects the resistance to bending force), and improves the bending stiffness of the panel reinforcement 30.

[0098] As Figure 6As shown, the front end portion 31f and the rear end portion 31r of the first frame portion 31 are fixed near the ridge line portions X1 to X4 of the front edge portion 10A and the rear edge portion 10C of the inner door panel 14 at the step portions 14c and 14g.

[0099] In this way, by fixing the front and rear end portions of the first frame portion 31 near the ridge line portions X1 to X4 with high rigidity in the inner door panel 14, the load of the first frame portion 31 is effectively dispersed and transmitted to the inner door panel 14.

[0100] In addition, as Figure 6 shown, at least one of the front end portion 31f and the rear end portion 31r of the first frame portion 31 is fixed to a reinforcing member provided on the inner door panel 14. In this embodiment, as Figure 6 shown, the front end portion 31f of the first frame portion 31 is fixed to the hinge reinforcement 17, and the hinge reinforcement 17 is a reinforcing member provided on the inner door panel 14.

[0101] More specifically, the above-mentioned front end portion 31f, the hinge reinforcement 17, and the step portion 14c of the inner door panel 14 are welded and fixed in three pieces by spot welding means. In this way, by fixing the front end portion 31f of the first frame portion 31 to the hinge reinforcement 17 with high rigidity, the load of the first frame portion 31 is effectively dispersed and transmitted to the inner door panel 14 via the hinge reinforcement 17.

[0102] Here, the following structure can also be adopted: the Figure 2 , Figure 3 shown latching reinforcement 18 is extended downward to the lower end position of the rear end portion 31r of the first frame portion 31, and the rear end portion 31r of the first frame portion 31 is also fixed to the latching reinforcement 18 which is a reinforcing member provided on the inner door panel 14. In the figure, the arrow mark F indicates the front of the vehicle, the arrow mark R indicates the rear of the vehicle, the arrow mark IN indicates the inside in the vehicle width direction, the arrow mark OUT indicates the outside in the vehicle width direction, and the arrow mark UP indicates the upper part of the vehicle.

[0103] As described in detail above, the door structure of the vehicle in the above embodiment is characterized by including: an outer door panel 12 having a convex portion 28 protruding outward in the vehicle width direction, a concave portion 29 separated from the convex portion 28 and recessed inward in the vehicle width direction, and a boundary portion α between the convex portion 28 and the concave portion 29; a panel reinforcement 30 fixed to the inner surface in the vehicle width direction of the outer door panel 12; wherein, the panel reinforcement 30 includes: a first frame portion 31 extending in the vehicle front-rear direction; a second frame portion 32 provided at the boundary portion α and capable of transmitting a load to the first frame portion 31 when the input in the vehicle width direction inner direction enters the boundary portion α (refer to Figure 1 , Figure 2 , Figure 3 ).

[0104] According to the door structure of such a vehicle, since the recess 29 is formed by being recessed inward in the vehicle width direction, the boundary portion α is likely to deform when a load is input in the inner direction of the vehicle width direction. However, the second frame portion 32 provided at the boundary portion α transmits the load to the first frame portion 31, so that local deformation (elastic deformation) of the boundary portion α can be suppressed.

[0105] In addition, in the door structure of the above vehicle, the first frame portion 31 has ridge line portions X5 to X8 that extend substantially linearly (refer to Figure 4 , Figure 5 ). The door structure of such a vehicle can transmit the load transmitted from the second frame portion 32 to the first frame portion 31 to the fixing portion of the plate reinforcement 30 through the ridge line portions X5 to X8 having high rigidity in the first frame portion 31.

[0106] In addition, in the door structure of the above vehicle, the convex portion 28 and the concave portion 29 of the outer door panel 12 extend in the vehicle front-rear direction, and the boundary portion α between the convex portion 28 and the concave portion 29 extends in the vehicle front-rear direction at a height substantially the same as the height at which the door outside handle 11 is provided (refer to Figure 1 ).

[0107] The door structure of such a vehicle sets the position of the boundary portion α between the convex portion 28 and the concave portion 29 at a height substantially the same as that of the door outside handle 11, so that the area that is likely to be touched by the user can be effectively strengthened.

[0108] In addition, in the door structure of the above vehicle, the second frame portion 32 includes: a front-rear direction frame portion 33 that extends in the vehicle front-rear direction in a manner capable of transmitting a load at the height position where the door outside handle 11 is provided; and upper and lower direction frame portions 34, 35, and 36 that connect the first frame portion 31 and the front-rear direction frame portion 33 in the up and down direction (refer to Figure 4 , Figure 5 ).

[0109] According to the door structure of such a vehicle, since the front-rear direction frame portion 33 exists at the height position where the door outside handle 11 is provided, the load can be more efficiently transmitted from the front-rear direction frame portion 33 at the position of the door outside handle 11 to the first frame portion 31 through the upper and lower direction frame portions 34, 35, and 36.

[0110] In addition, in the door structure of the above vehicle, the second frame portion 32 includes truss portions T1, T2, and T3 formed by the front-rear direction frame portion 33 and the upper and lower direction frame portions 34, 35, and 36 into a truss shape (refer to Figure 4 , Figure 5 ).

[0111] According to the door structure of such a vehicle, since the truss portions T1, T2, and T3 have a good effect of dispersing the load, the load transfer efficiency can be improved.

[0112] In addition, in the door structure of the above vehicle, adhesives e, g, and f are provided, and the adhesives e, g, and f are arranged near the vertices of the truss portions T2 and T3 of the second frame portion 32 for bonding the second frame portion 32 to the outer door panel 12 (refer to Figure 2 , Figure 3 ).

[0113] According to the door structure of such a vehicle, the vicinity of the vertices of the truss portions T2 and T3 is a portion where the load can be efficiently dispersed, and is most suitable as the bonding portion for bonding the second frame portion 32 to the outer door panel 12. Thereby, the load transfer efficiency of the second frame portion 32 can be improved.

[0114] In addition, in the door structure of the above vehicle, the vertex portion of the truss portion T2 is provided on an imaginary line γ in the vehicle front-rear direction that connects the front end portion 11a and the rear end portion 11b of the outer door handle 11 and extends forward in the vehicle (refer to Figure 1 , Figure 2 ).

[0115] According to the door structure of such a vehicle, since the vertex portion of the truss portion T2 is provided on the imaginary line γ of the outer door handle 11, the load can be effectively dispersed in the area where the user is most likely to touch with the hand.

[0116] In addition, in the door structure of the above vehicle, the first frame portion 31 and the second frame portion 32 are formed in a substantially U-shaped cross section (refer to Figures 7 to 9 ).

[0117] According to the door structure of such a vehicle, the cross-sectional shape can increase the cross-sectional moment of inertia of the first frame portion 31 and the second frame portion 32, and can improve the bending stiffness of the plate reinforcement 30.

[0118] In addition, in the door structure of the above vehicle, the front end portion 31f and the rear end portion 31r of the first frame portion 31 are fixed near the ridge lines X1 to X4 of the front edge portion 10A and the rear edge portion 10C of the inner door panel 14 (refer to Figure 6 ).

[0119] Such a door structure of the vehicle fixes the front and rear end portions of the first frame portion 31 near the high-rigidity ridge lines X1 to X4 in the inner door panel 14, so that the load of the first frame portion 31 can be effectively dispersed and transmitted to the inner door panel 14.

[0120] In addition, in the door structure of the above vehicle, at least one of the front end portion 31f and the rear end portion 31r of the first frame portion 31 is fixed to a reinforcing member (hinge reinforcement 17) provided on the inner door panel 14 (see Figure 6 ).

[0121] In the door structure of such a vehicle, at least one of the front end portion 31f and the rear end portion 31r of the first frame portion 31 is fixed to a reinforcing member with high rigidity (see hinge reinforcement 17). Therefore, the load of the first frame portion 31 can be effectively dispersed and transmitted to the inner door panel 14 through the reinforcing member (hinge reinforcement 17).

[0122] In the correspondence between the technical solution of the present invention and the above embodiment, although the reinforcing member of the present invention corresponds to the hinge reinforcement 17 of the embodiment, the present invention is not limited to the technical solution of the above embodiment, and many embodiments can be obtained.

[0123] Practicality

[0124] As described above, the present invention is useful for the door structure of a vehicle. The door structure of the vehicle includes:

[0125] An outer door panel having a convex portion protruding outward in the vehicle width direction, a concave portion recessed inward in the vehicle width direction and separated from the convex portion, and a boundary portion between the convex portion and the concave portion;

[0126] A panel reinforcement fixed to the inner surface in the vehicle width direction of the outer door panel.

[0127] Number description

[0128] 10… Door

[0129] 10A… Front edge portion

[0130] 10C… Rear edge portion

[0131] 11… Outside door handle

[0132] 11a… Front end portion

[0133] 11b… Rear end portion

[0134] 12… Outer door panel

[0135] 14… Inner door panel

[0136] 17… Hinge reinforcement (reinforcing member)

[0137] 28… Convex portion

[0138] 29… Concave portion

[0139] 30… Panel reinforcement

[0140] 31… First frame portion

[0141] 31f…Front end portion

[0142] 31r…Rear end portion

[0143] 32…Second frame portion

[0144] 33…Longitudinal frame portion

[0145] 34 - 36…Vertical frame portion

[0146] α…Boundary portion

[0147] γ…Imaginary line in the vehicle longitudinal direction

[0148] T1 - T3…Truss portion

[0149] X1 - X4…Edge line portion

[0150] X5 - X8…Edge line portion

[0151] e, f, g…Adhesive

Claims

1. A door structure of a vehicle, characterized in that Comprising: An outer door panel having a convex portion protruding outward in the vehicle width direction, a concave portion formed by being separated from the convex portion and recessed inward in the vehicle width direction, and a boundary portion between the convex portion and the concave portion; A panel reinforcement fixed to the inner surface in the vehicle width direction of the outer door panel and connecting between the front edge portion and the rear edge portion of the door; An impact bar connecting between the front edge portion and the lower edge portion of the door; Wherein, the panel reinforcement includes: A first frame portion extending in the vehicle front-rear direction; A second frame portion provided at the boundary portion and capable of transmitting a load to the first frame portion when a load in the inner direction of the vehicle width is input to the boundary portion, and the second frame portion is provided on an imaginary line in the vehicle front-rear direction that connects the front end portion and the rear end portion of the outer door handle and extends forward in the vehicle; 2. The door structure of a vehicle according to claim 1, wherein: The first frame portion has a ridge line portion extending substantially linearly.

3. The door structure of a vehicle according to claim 1 or 2, wherein: The convex portion and the concave portion of the outer door panel extend in the vehicle front-rear direction, and the boundary portion between the convex portion and the concave portion extends in the vehicle front-rear direction at a height substantially the same as the height where the outer door handle is provided.

4. The door structure of a vehicle according to claim 1 or 2, characterized in that The second frame portion includes: A front-rear direction frame portion extending in the vehicle front-rear direction in a manner capable of transmitting a load at the height position where the outer door handle is provided; An up-down direction frame portion connecting the first frame portion and the front-rear direction frame portion in the up-down direction.

5. The door structure of a vehicle according to claim 4, wherein: The second frame portion has a truss portion formed by the front-rear direction frame portion and the up-down direction frame portion into a truss shape.

6. The door structure of a vehicle according to claim 5, wherein: An adhesive is provided, and the adhesive is disposed near the vertex portion of the truss portion of the second frame portion for bonding the second frame portion and the outer door panel.

7. The door structure of a vehicle according to claim 5 or 6, wherein: The vertex portion of the truss portion is provided on an imaginary line in the vehicle front-rear direction that connects the front end portion and the rear end portion of the outer door handle and extends forward in the vehicle.

8. The door structure of a vehicle according to claim 1 or 2, wherein: The first frame portion and the second frame portion are formed into a shape with a substantially U-shaped cross section.

9. The door structure of a vehicle according to claim 1 or 2, wherein: The front end portion and the rear end portion of the first frame portion are fixed near the ridge line portions of the front edge portion and the rear edge portion of the inner door panel.

10. The door structure of a vehicle according to claim 1 or 2, wherein: At least one of the front end portion and the rear end portion of the first frame portion is fixed to a reinforcing member provided on the inner door panel.

Images