Vehicle door

Abstract

The present application provides a door, which is a vehicle door reinforced by a panel reinforcement, and has a structure that produces superior low-frequency sound when the door is closed. The vehicle door (100) has an outer panel (20) and a panel reinforcement (40) fixed by a plurality of adhesive portions (50), wherein the outer panel (20) is mounted to a vehicle body by a front hinge (10) and can be opened and closed, and the panel reinforcement (40) extends in the vehicle front-rear direction inside the outer panel (20), wherein the number of adhesive portions (50) in the upper region (216) of the outer panel (20) is greater than the number of adhesive portions (50) in the lower region (218) of the outer panel (20), and the number of adhesive portions (50) in the front lower region (224) of the lower region (218) that is closer to the front hinge (10) is greater than the number of adhesive portions (50) in the rear lower region (226) of the lower region (218) that is farther from the front hinge (10).

Description

TECHNICAL FIELD

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

[0002] A door for a vehicle has an outer panel on the outside and an inner panel on the cabin side. Among the above panels, the outer panel is particularly easy to be touched by people and objects. Therefore, a reinforcing material, i.e., a panel reinforcement, is designed to be installed on the inner side of the outer panel, thereby making the outer panel less likely to be deformed (see Patent Document 1).

[0003] In addition, when designing a vehicle, it is also important to give the vehicle a sense of luxury by lowering the frequency of the sound produced when the door is closed. However, after the panel reinforcement is fixed at intervals on the inner side of the outer panel with an adhesive, on the one hand, the rigidity of the outer panel will be higher, and on the other hand, its natural frequency will also be higher, so the sound when the door is closed will shift to the high frequency side, losing the sense of luxury.

[0004] PRIOR ART DOCUMENTS

[0005] PATENT DOCUMENTS

[0006] Patent Document 1: Japanese Patent Laid-Open No. 2021-45995 SUMMARY OF THE INVENTION

[0007] PROBLEMS TO BE SOLVED BY THE INVENTION

[0008] Therefore, the present application aims to provide a door, which is a door for a vehicle that reinforces the outer panel with a panel reinforcement, and has a structure that produces superior low-frequency sound when the door is closed.

[0009] MEANS OF SOLVING THE PROBLEMS

[0010] To achieve this object, the present application is characterized by the following configuration.

[0011] First, the present application is a vehicle door having an outer panel and a panel reinforcement, and the outer panel and the panel reinforcement are fixed by a plurality of adhesive portions, wherein the outer panel is mounted to a vehicle body by a front hinge and is openable and closable, and the panel reinforcement extends in a vehicle front-rear direction on an inner side of the outer panel, wherein the outer panel includes: a first belt-shaped protruding portion that protrudes toward a vehicle exterior side and extends in the vehicle front-rear direction; a belt-shaped recessed portion that protrudes toward a passenger compartment side below the first belt-shaped protruding portion and extends in the vehicle front-rear direction; and a second belt-shaped protruding portion that protrudes toward the vehicle exterior side below the belt-shaped recessed portion and extends in the vehicle front-rear direction, wherein the belt-shaped recessed portion includes a recessed top line that is located between an upper end and a lower end of the belt-shaped recessed portion, protrudes most toward the passenger compartment side, and extends in the front-rear direction, wherein the outer panel includes: an upper region that is located above the recessed top line; and a lower region that is located below the recessed top line, wherein the number of the adhesive portions in the upper region is greater than the number of the adhesive portions in the lower region, and the number of the adhesive portions in a front lower region of the lower region that is located closer to the front hinge is greater than the number of the adhesive portions in a rear lower region of the lower region that is located farther from the front hinge.

[0012] According to the present application, the number of the adhesive portions in the upper region above the recessed top line of the belt-shaped recessed portion of the outer panel is greater than the number of the adhesive portions in the lower region below the recessed top line of the belt-shaped recessed portion of the outer panel. In addition, the number of the adhesive portions in the front lower region of the lower region that is located closer to the front hinge is greater than the number of the adhesive portions in the rear lower region of the lower region that is located farther from the front hinge. The number of the adhesive portions in the upper region is greater than the number of the adhesive portions in the lower region, thereby making the rigidity of the upper region greater than the rigidity of the lower region. Therefore, when a passenger touches the upper region of the outer panel to open or close the door, the upper region has a sufficiently large rigidity, so that the upper region is prevented from easily bending due to an external force. Furthermore, the number of the adhesive portions in the front lower region is greater than the number of the adhesive portions in the rear lower region, thereby making the rigidity of the rear lower region less than the rigidity of the front lower region. The rear lower region is a region in which a door closing sound is generated when the passenger closes the door, and has a sufficiently small rigidity, so that the natural frequency is low. Therefore, a low frequency sound, i.e., a heavy door closing sound, can be generated when the passenger closes the door.

[0013] In addition, the outer panel can include a first turning line that is a boundary between the first belt-shaped protruding portion and the belt-shaped recessed portion, and a plurality of the adhesive portions can be present on the first turning line.

[0014] According to the present application, a plurality of the adhesive portions are present on the first turning line, thereby making the belt-shaped recessed portion maintain a sufficient rigidity.

[0015] Further, the first belt-shaped protrusion can have a protrusion line between the upper end and the lower end of the first belt-shaped protrusion, the protrusion line protruding to the vehicle exterior side and extending in the front-rear direction, wherein the number of the adhesive portions between the concave line and the protrusion line is in the range of 70% to 90% of the number of the adhesive portions for adhering the outer panel and the panel reinforcement.

[0016] According to the present aspect, the number of the adhesive portions between the concave line and the protrusion line is in the range of 70% to 90% of the number of the adhesive portions for adhering the outer panel and the panel reinforcement, whereby the rigidity of the region between the first belt-shaped protrusion and the belt-shaped concave portion, whose rigidity is apt to be small, can be sufficiently reinforced.

[0017] Further, the panel reinforcement can gradually expand from the front end to the rear end of the outer panel.

[0018] According to the present aspect, the panel reinforcement gradually expands from the front end to the rear end of the outer panel, whereby the outer panel maintains sufficient rigidity, so that it can be prevented from being easily bent by an external force.

[0019] Further, the panel reinforcement can have a first panel reinforcement portion extending from the front end to the rear end of the outer panel, and a second panel reinforcement portion disposed below the first panel reinforcement portion and extending from the front end to the rear end of the outer panel, wherein the first panel reinforcement portion is fixed to the outer panel only by the adhesive portions disposed in the upper region, and the second panel reinforcement portion is fixed to the outer panel by the adhesive portions disposed in the upper region and the lower region.

[0020] According to the present aspect, the panel reinforcement has a first panel reinforcement portion extending from the front end to the rear end of the outer panel, and a second panel reinforcement portion disposed below the first panel reinforcement portion and extending from the front end to the rear end of the outer panel, whereby the outer panel maintains sufficient rigidity, so that it can be prevented from being easily deformed by an external force even when the vehicle is subjected to a lateral collision.

[0021] The first panel reinforcement portion can be disposed to be inclined downward from the front end to the rear end of the outer panel, the second panel reinforcement portion can be disposed to be inclined downward from the front end to the rear end of the outer panel, and the inclination degree of the second panel reinforcement portion downward can be greater than the inclination degree of the first panel reinforcement portion downward.

[0022] According to the present aspect, the inclination degree of the second panel reinforcement portion downward is greater than the inclination degree of the first panel reinforcement portion downward, whereby the region in which neither the first panel reinforcement portion nor the second panel reinforcement portion is fixed is sufficiently large in the lower rear region of the outer panel. Therefore, the lower rear region has sufficiently small rigidity, so that the natural frequency is low, and a heavy door closing sound is apt to occur.

[0023] Further, the length of the second belt-shaped protrusion in the up-and-down direction can be made larger toward the rear side of the vehicle.

[0024] According to the present aspect, the length of the second belt-shaped protrusion in the up-and-down direction is made larger toward the rear side of the vehicle, and thus the area between the belt-shaped recess having a small rigidity and the second belt-shaped protrusion is made larger toward the rear side of the vehicle, and therefore the natural frequency is low and it is easy to produce a heavy door closing sound.

[0025] Further, the adhesive portion can be provided only in the first belt-shaped protrusion and the belt-shaped recess.

[0026] According to the present aspect, the adhesive portion is provided only in the first belt-shaped protrusion and the belt-shaped recess, and thus the second belt-shaped protrusion has a sufficiently small rigidity. Therefore, the natural frequency of the second belt-shaped protrusion is low and it is easy to produce a heavy door closing sound.

[0027] Further, the present application is a vehicle door having an outer panel and a panel reinforcement, and the outer panel and the panel reinforcement are fixed by a plurality of adhesive portions, wherein the outer panel is installed to a vehicle body by a front hinge and is openable and closable, and the panel reinforcement extends in a vehicle front-and-rear direction on an inner side of the outer panel, wherein: in a state where the outer panel is observed from a vehicle exterior side, the outer panel is divided by a horizontal line passing through a center of gravity of the outer panel and a vertical line, and has: a first quadrant located above the horizontal line and in front of the vertical line; a second quadrant located above the horizontal line and behind the vertical line; a third quadrant located below the horizontal line and behind the vertical line; and a fourth quadrant located below the horizontal line and in front of the vertical line, wherein the number of the adhesive portions in the first quadrant and the second quadrant is respectively larger than the number of the adhesive portions in the third quadrant and the fourth quadrant.

[0028] According to the present application, in a state where the outer panel is observed from a vehicle exterior side, the number of the adhesive portions in the first quadrant and the second quadrant located above a horizontal line passing through a center of gravity of the outer panel is respectively larger than the number of the adhesive portions in the third quadrant and the fourth quadrant located below the horizontal line. The number of the adhesive portions in the first quadrant and the second quadrant is larger than the number of the adhesive portions in the third quadrant and the fourth quadrant, and thus the rigidity of the first quadrant and the second quadrant is larger than the rigidity of the third quadrant and the fourth quadrant. Therefore, when a passenger touches the first quadrant or the second quadrant of the outer panel to close the door, the rigidity of the first quadrant and the second quadrant is sufficiently large, and thus it is prevented from being easily bent by an external force. The third quadrant and the fourth quadrant of the outer panel have a smaller rigidity than the first quadrant and the second quadrant, and thus the natural frequency is low. Therefore, when the passenger closes the door, a heavy door closing sound can be produced in the third quadrant and the fourth quadrant.

[0029] Further, the number of the adhesive portions in the fourth quadrant can be larger than the number of the adhesive portions in the third quadrant.

[0030] According to the present aspect, the number of the adhesive portions in the fourth quadrant is greater than the number of the adhesive portions in the third quadrant, thereby making the rigidity of the third quadrant smaller than the rigidity of the fourth quadrant. The third quadrant is a region in which a door closing sound is generated when a passenger closes the door, and has a sufficiently small rigidity, and thus has a low natural frequency. Therefore, when the passenger closes the door, a heavy door closing sound can be generated in the third quadrant.

[0031] The plate reinforcement can have a first plate reinforcement portion extending from a front end to a rear end of the outer panel, and a second plate reinforcement portion disposed below the first plate reinforcement portion and extending from the front end to the rear end of the outer panel. The first plate reinforcement portion can be fixed to the outer panel only by the adhesive portions disposed in the first quadrant and the second quadrant. The second plate reinforcement portion can be fixed to the outer panel only by the adhesive portions disposed in the first quadrant and the fourth quadrant, or only by the adhesive portions disposed in the first quadrant, the fourth quadrant, and the third quadrant.

[0032] According to the present aspect, the plate reinforcement has a first plate reinforcement portion extending from a front end to a rear end of the outer panel, and a second plate reinforcement portion disposed below the first plate reinforcement portion and extending from the front end to the rear end of the outer panel, thereby maintaining a sufficient rigidity of the outer panel to prevent the outer panel from being easily deformed by an external force even when the vehicle is subjected to a lateral collision.

[0033] Effects of Invention

[0034] Therefore, the vehicle door according to the present aspect is a vehicle door in which the outer panel is reinforced by the plate reinforcement, and has a structure in which a superior low frequency sound is generated when the door is closed. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 is a front view of the vehicle door according to the first embodiment of the present aspect, as viewed from the outside of the vehicle;

[0036] Figure 2 is a cross-sectional view of the door along the line II-II of Figure 1

[0037] Figure 3 is a cross-sectional view of the door along the line III-III of Figure 1

[0038] Figure 4 is a cross-sectional view of the door along the line IV-IV of Figure 1

[0039] Figure 5 is a cross-sectional view of the door along the line V-V of Figure 1

[0040] is a cross-sectional view of the door along the line V-V of​​​Figure 6 Figure 1 a front view of the door from which a portion of the outer panel is removed;

[0041] Figure 7 a distribution diagram of vibration energy generated when the door is closed; Figure 1

[0042] Figure 8 a front view of the door to which the second embodiment of the present application is applied from which a portion of the outer panel is removed. DETAILED DESCRIPTION

[0043] Embodiments of the present application will be described below with reference to the drawings.

[0044] [First Embodiment]

[0045] Figure 1 is a door 100 for a vehicle to which the first embodiment is applied, and particularly, a front door located on the side of a driver's seat or a passenger's seat on the front side of a vehicle, which is observed on the right side when the vehicle is observed from the rear to the front.

[0046] The door 100 is connected to a vehicle body not shown and is openable and closable about a vertical axis 12, and has an outer panel 20 which is installed to the vehicle body by a front hinge 10 and is openable and closable, and is substantially quadrangular; a window frame 22 which is connected to the upper side of the outer panel 20; and a garnish mounting portion 24 which is connected to the lower side of the outer panel 20.

[0047] The outer panel 20 is manufactured by processing a steel plate having a thickness of 0.6 to 0.7 mm or an aluminum or plastic plate having the same degree of strength, and is given a streamline shape in which the vehicle flows from the front to the rear, in consideration of giving the vehicle body a dynamic shape in terms of exterior design and reducing the air resistance of the vehicle body from a technical aspect. Specifically, the door 100 for a vehicle of the embodiment has three curved surfaces, i.e., a first belt-shaped convex portion 202 of an upper section which protrudes to the outside of the vehicle and extends in the front-rear direction of the vehicle; a belt-shaped concave portion 204 of a middle section which is disposed adjacent to the lower side of the first belt-shaped convex portion 202, is recessed to the side of the cabin, and extends in the front-rear direction of the vehicle; and a second belt-shaped convex portion 206 of a lower section which is disposed adjacent to the lower side of the belt-shaped concave portion 204, protrudes to the outside of the vehicle, and extends in the front-rear direction of the vehicle.

[0048] Figures 2-5 is a cross-sectional view of the outer panel along lines II-II, III-III, IV-IV, and V-V of Figure 1

[0049] Returning to Figure 1 ​​​The boundary between the first belt-shaped protrusion 202 and the belt-shaped recess 204 (a line connecting the turning points from the convex curved surface to the concave curved surface) is shown as a first turning line 208, and the boundary between the belt-shaped recess 204 and the second belt-shaped protrusion 206 (a line connecting the turning points from the concave curved surface to the convex curved surface) is shown as a second turning line 210.

[0050] As shown in the drawing, the line showing the upper edge of the first belt-shaped protrusion 202 of the upper section extends approximately in the horizontal direction, and the line showing the lower edge of the first belt-shaped protrusion 202 (also the line showing the upper edge of the belt-shaped recess 204) extends in a manner that gradually becomes higher from the front to the rear (from the right side to the left side of the drawing). The line showing the lower edge of the second belt-shaped protrusion 206 of the lower section extends approximately in the horizontal direction, and the line showing the upper edge of the second belt-shaped protrusion 206 (also the line showing the lower edge of the belt-shaped recess 204) extends in a manner that gradually becomes higher from the front to the rear. The lines showing the upper and lower edges of the belt-shaped recess 204 of the middle section both extend in a manner that gradually becomes higher from the front to the rear. Therefore, the apex line 212 connecting the points that protrude the most toward the vehicle exterior in each longitudinal section of the first belt-shaped protrusion 202 and the apex line 214 connecting the points that recess the most toward the vehicle interior in each longitudinal section of the belt-shaped recess 204 also extend in a manner that gradually becomes higher from the front to the rear.

[0051] A concave-convex surface that is continuous with the concave-convex surface of the door 100 is formed on the outer side surface of the vehicle body front portion adjacent to the door 100 and the rear door, and is integrated, creating a streamlined shape that gives a sense of dynamism to the vehicle exterior, which is not shown in the drawing.

[0052] In the illustrated embodiment, the front end of the second belt-shaped protrusion 206 is located approximately midway between the front end and the rear end of the rear door 2, and the second belt-shaped protrusion 206 is shown as a substantially triangular region (the second belt-shaped protrusion 206) from this intermediate position toward the rear, but it can also be the same as the first belt-shaped protrusion 202 and the belt-shaped recess 204, starting from the front end of the rear door 2.

[0053] Figure 6 A drawing showing the door 100 after the above-described outer panel 20 has been removed from the vehicle exterior is shown. As shown in the drawing, an inner panel 30 is provided on the passenger compartment side of the outer panel 20. The inner panel 30 is also made of a metal panel such as iron or aluminum or a plastic panel, like the outer panel 20.

[0054] Between the outer panel 20 and the inner panel 30, a panel reinforcement 40 for reinforcing the outer panel 20 is arranged along the inner side surface of the outer panel 20, and the panel reinforcement 40 gradually expands (i.e., the height gradually increases) from the front end to the rear end of the outer panel 20 (from the right side to the left side of the drawing).

[0055] In the embodiment, the panel reinforcement 40 is generally composed of a first panel reinforcement portion 42 on the upper portion and a second panel reinforcement portion 44 on the lower portion.

[0056] The first and second plate reinforcement portions 42 and 44 are each made of a metal plate such as iron or aluminum or a plastic plate, like the outer plate 20.

[0057] In the first embodiment, the first and second plate reinforcement portions 42 and 44 are each inclined downward from the front end toward the rear end of the outer plate 20. The degree of inclination of the second plate reinforcement portion 44 is set to be greater than that of the first plate reinforcement portion 42. Thus, the area surrounded by the first and second plate reinforcement portions 42 and 44 expands toward the rear end.

[0058] The first and second plate reinforcement portions 42 and 44 are each adhesively fixed to the outer plate 20 by a plurality of adhesive portions 50. The adhesive of the adhesive portions 50 can be, for example, an epoxy-based adhesive or an adhesive using synthetic rubber as a material. The adhesive portions 50 are each substantially circular with a diameter of about 30 mm.

[0059] As shown in the figure, Figure 6 are shown in the figure, Figure 1 The areas of the first protruding strip portion 202, the recessed strip portion 204, the second protruding strip portion 206, the protruding ridge line 212, and the recessed ridge line 214 shown in the figure are described in detail below. Figure 1 The positional relationship between the areas described above and the plate reinforcement portions 42 and 44 and the adhesive portions 50 is described below.

[0060] As shown in the figure, the front end of the upper first plate reinforcement portion 42 is fixed to the vicinity of the middle of the front portion of the first protruding strip portion 202 of the outer plate 20, and the rear end thereof is fixed to the vicinity of the middle of the rear portion of the recessed strip portion 204 of the outer plate 20. In the embodiment, the middle portion between the front end and the rear end of the first plate reinforcement portion 42 is thick (wide in the vertical direction), gradually becomes thin (the width in the vertical direction gradually becomes smaller) toward the front end and the rear end, and the first plate reinforcement portion 42 is arranged to cross the boundary between the first protruding strip portion 202 and the recessed strip portion 204, that is, the first turning line 208, obliquely from the front toward the rear.

[0061] The front end of the second plate reinforcement portion 44 is fixed to the vicinity of the lower portion of the front portion of the first protruding strip portion 202 of the outer plate 20, and the rear end thereof is fixed to the lower portion of the vicinity of the middle of the front and rear direction of the second protruding strip portion 206 of the outer plate 20.

[0062] The adhesive portions 50 for the first panel reinforcement portion 42 are mostly located between the vicinity of the convex top line 212 of the first band-shaped convex portion 202 and the concave top line 214 of the band-shaped concave portion 204. They are centered along the first inflection line 208, which is the boundary between the first band-shaped convex portion 202 and the band-shaped concave portion 204, or are located above and below the first inflection line 208. In particular, several adhesive portions 50 for the first panel reinforcement portion 42 are located on or around the first inflection line 208, and the outer panel 20 is strongly reinforced by the first panel reinforcement portion 42 at these locations.

[0063] The door handle 222, used to open and close the door 100, is located near the first turning line 208 near the rear end of the door 100. Therefore, the area near the first turning line 208 is a region that passengers frequently touch when opening and closing the door. Furthermore, the area near the first turning line 208 is also susceptible to external impacts, and since this area has zero curvature, its resistance to deformation is very weak. Therefore, as described above, numerous bonding portions 50 are arranged near the first turning line 208, integrating the outer panel 20 with the first panel reinforcement portion 42 at this location and reinforcing it.

[0064] On the other hand, the bonding portion 50 of the second plate reinforcement portion 44 is mostly arranged in the region of the strip-shaped recessed portion 204 and does not exist in the second strip-shaped raised portion 206 .

[0065] Regarding the number of adhesive portions 50, in the embodiment, the number of adhesive portions 50 for the first plate reinforcement portion 42 is greater than the number of adhesive portions 50 for the second plate reinforcement portion 44. For example, in the embodiment, nine adhesive portions 50 are provided for the first plate reinforcement portion 42, and four adhesive portions are provided for the second plate reinforcement portion 44.

[0066] Thus, in the door 100 of the embodiment, the portion of the outer panel 20 near the first inflection line 208, which is most likely to receive external force, is reinforced by being integrated with the first panel reinforcement portion 42 via the adhesive portion 50. Therefore, deformation of the outer panel 20 in this portion can be reliably prevented.

[0067] Furthermore, in the door 100 of the embodiment, the upper region 216 of the outer panel 20, above the concave top line 214 of the strip-shaped concave portion 204, is provided with more adhesive portions 50 than the lower region 218 below the concave top line 214. For example, there are 11 adhesive portions 50 in the upper region 216, and two adhesive portions 50 in the lower region 218. Therefore, the outer panel 20 portion and the panel reinforcement 40 supporting it are more integrated in the upper region 216 than in the lower region 218.

[0068] Furthermore, the front lower region 224 (refer to Figure 6The rear lower area 226 (refer to Fig. 2) is farther from the front hinge 10 than the front lower area 224. Figure 6 More adhesion portions 50 are provided in the rear lower area 226 than in the front lower area 224. For example, two adhesion portions 50 are provided in the front lower area 224, and no adhesion portions 50 are provided in the rear lower area 226. Therefore, the outer panel 20 portion in the front lower area 224 and the panel reinforcement 40 supporting it are more integrated than in the rear lower area 226.

[0069] Thus, the rigidity of the upper area 216 of the outer panel 20 is greater than that of the lower area 218, and therefore, even if the upper area 216 of the outer panel 20 is touched by a passenger or an external impact is applied to the upper area 216, the outer panel 20 portion in the upper area 216 is not easily deformed.

[0070] Further, the rigidity of the lower area 218 is less than that of the upper area 216, and therefore, when the door 100 is closed, the lower area 218 emits a low-frequency sound that gives a sense of luxury.

[0071] Especially, the number of adhesion portions 50 in the rear lower area 226 is less than that in the front lower area 224. Thus, the frequency of the sound emitted from the rear lower area 226 is the smallest, and the sound emitted from the rear lower area 226 is the thickest.

[0072] Figure 7 The distribution of the vibration energy of the outer panel 20 when the door 100 of the above embodiment is closed is shown, and the darker the color, the greater the energy.

[0073] As shown, the vibration energy in the area above the first inflection line 208 is much smaller than that in the area below the first inflection line 208. This indicates that the rigidity of the outer panel 20 portion near the first inflection line 208 is great. Therefore, even if a large force is applied to the vicinity of the first inflection line 208 when the door 100 is opened and closed, or an external impact is applied to the vicinity of the first inflection line 208, the outer panel 20 portion near the first inflection line 208 is not easily deformed.

[0074] Further, the vibration energy of the lower area 218 below the concave top line 214 is much greater than that of the upper area 216 above the concave top line 214. Also, the vibration energy of the rear lower area 226 is greater than that of the front lower area 224, as viewed from the lower area 218. Therefore, the lower area 218, especially the rear lower area 226, emits a low sound that gives a sense of weightiness when the door is closed.

[0075] Further, in the above embodiment, the adhesion portions 50 are provided in the area between the convex top line 212 and the concave top line 214, and the number of adhesion portions 50 provided in this area is preferably in the range of 70% to 90% of the total number of adhesion portions 50.

[0076] [2nd Embodiment]

[0077] Referring to Figure 8 A door 100 for a vehicle according to a second embodiment of the present application will be described.

[0078] Figure 8 With Figure 6 The front view of the door is taken from the driver's seat or the passenger's seat, which is on the right side of the vehicle when viewed from the rear to the front of the vehicle, and Figure 8 In Figure 6 A center of gravity 250 of the outer panel 20, a horizontal line 252 passing through the center of gravity 250, and a vertical line 254 are added to the structure shown in FIG. 8. Therefore, Figure 8 The structure of the outer panel 20 shown in FIG. 9 is the same as that shown in FIG. 8, and the same reference numerals are attached to the same parts or corresponding parts, and the description thereof will be omitted. Figure 6

[0079] In the following description, four regions divided by the horizontal line 252 and the vertical line 254, i.e., a front upper section region, a rear upper section region, a rear lower section region, and a front lower section region appearing in this order in the counterclockwise direction on the drawing, are referred to as a first quadrant 271, a second quadrant 272, a third quadrant 273, and a fourth quadrant 274, respectively.

[0080] However, the nomenclature is used to determine the four regions of the door on the right side of the vehicle, and if it is a front door on the opposite left side of the vehicle, the front upper section region, the rear upper section region, the rear lower section region, and the front lower section region appearing in this order in the clockwise direction when the door is viewed from the outside correspond to the first quadrant, the second quadrant, the third quadrant, and the fourth quadrant, respectively.

[0081] As shown in the figure, the center of gravity 250 of the outer panel 20 is located at approximately the center of the belt-shaped recess 204. The first panel reinforcement portion 42 of the upper section extends almost entirely in the first quadrant 271 and the second quadrant 272 obliquely downward from the front end to the rear end of the door 100, and the second panel reinforcement portion 44 of the lower section extends in the first quadrant 271, the fourth quadrant 274, and the third quadrant 273 obliquely downward from the front end to the rear end of the door 100.

[0082] From the number of the adhesive portions 50, the adhesive portions 50 for the first panel reinforcement portion 42 are distributed entirely in the first quadrant 271 and the second quadrant 272, and the number of the adhesive portions 50 in the first quadrant 271 and the second quadrant 272 is almost the same. However, it is also possible that the number of the adhesive portions 50 contained in one of the first quadrant 271 or the second quadrant 272 is greater than the number of the adhesive portions 50 contained in the other.

[0083] ​The adhesive portions 50 of the second panel reinforcement portion 44 are distributed in the first quadrant 271 and the fourth quadrant 274, and the third quadrant 273 contains no adhesive portions 50. However, the number of adhesive portions 50 contained in the fourth quadrant 274 is smaller than the number of adhesive portions 50 contained in the first quadrant 271 and the second quadrant 272, respectively. It is also possible to provide the third quadrant 273 with a smaller number of adhesive portions 50 than the fourth quadrant 274.

[0084] Thus, in the embodiment, the number of adhesive portions 50 contained in the first quadrant 271 and the second quadrant 272 is larger than the number of adhesive portions 50 contained in the third quadrant 273 and the fourth quadrant 274, respectively, and the number of adhesive portions 50 contained in the fourth quadrant 274 is larger than the number of adhesive portions 50 contained in the third quadrant 273.

[0085] By configuring the adhesive portions 50 as described above, the outer panel 20 and the panel reinforcement 40 supporting the same are more integrated in the first quadrant 271 and the second quadrant 272 than in the third quadrant 273 and the fourth quadrant 274. Also, the outer panel 20 and the panel reinforcement 40 supporting the same are more integrated in the fourth quadrant 274 than in the third quadrant 273.

[0086] Thus, the rigidity of the outer panel 20 in the first quadrant 271 and the second quadrant 272 is larger than the rigidity in the third quadrant 273 and the fourth quadrant 274, and therefore, even if the occupant touches the outer panel 20 in the first quadrant 271 or the second quadrant 272 with force or if an external impact is applied to the same, the outer panel 20 is not easily deformed.

[0087] In addition, the number of adhesive portions 50 in the third quadrant 273 is smaller than the number of adhesive portions 50 in the other quadrants, i.e., the first quadrant 271, the second quadrant 272, and the fourth quadrant 274. Thus, the frequency of sound emitted from the third quadrant 273 is the smallest, and the sound emitted from the third quadrant 273 is the thickest.

[0088] [Other Embodiments]

[0089] The above describes an embodiment in which the present application is applied to a door located next to a driver's seat or a front passenger's seat, but the present application can also be applied to a door located next to a rear seat. Also, the present application is not limited to a door mounted on a vehicle, but can be widely applied to a door of another passenger vehicle.

[0090] In the above embodiment, the panel reinforcement 40 is composed of two panel reinforcement portions 42, 44, but the panel reinforcement can be composed of one panel member, or can be composed of three or more panel reinforcement portions.

[0091] Number Description

[0092] 10 front hinge

[0093] 20 outer panel

[0094] 40 plate reinforcement

[0095] 50 bonding portion

[0096] 100 door

[0097] 202 first strip-shaped protrusion

[0098] 204 strip-shaped recess

[0099] 206 second strip-shaped protrusion

[0100] 214 concave top line

[0101] 216 upper region

[0102] 218 lower region

[0103] 224 front lower region

[0104] 226 rear lower region

Claims

1. A vehicle door comprising an outer panel and a panel reinforcement, wherein the outer panel and the panel reinforcement are fixed to each other by a plurality of adhesive portions, wherein: The outer panel is mounted on the vehicle body via a front hinge and can be opened and closed, and the panel reinforcement extends in the vehicle front-rear direction on the inner side of the outer panel, characterized in that: The outer plate has: a first strip-shaped convex portion protruding toward the outside of the vehicle and extending in the front-rear direction of the vehicle; a strip-shaped concave portion protruding toward the cabin below the first strip-shaped convex portion and extending in the vehicle front-rear direction; a second strip-shaped convex portion protruding toward the vehicle outer side below the strip-shaped concave portion and extending in the vehicle front-rear direction; The strip-shaped recess comprises: a concave top line, located between the upper end and the lower end of the strip-shaped concave portion, protruding most toward the cabin side and extending in the front-rear direction; The outer plate has: an upper region located above the concave top line; a lower region located below the concave top line; The number of the bonding portions in the upper region is greater than the number of the bonding portions in the lower region, The number of the adhesive portions in the front lower region located in the lower region and close to the front hinge is greater than the number of the adhesive portions in the rear lower region located in the lower region and far from the front hinge; Wherein, the first belt-shaped convex portion has: The convex top line is located between the upper end and the lower end of the first strip-shaped convex portion, protrudes most toward the vehicle outer side and extends in the front-rear direction. The number of the bonding portions between the concave top line and the convex top line is within a range of 70% to 90% of the number of the bonding portions used to bond the outer panel and the panel reinforcement.

2. The vehicle door according to claim 1, wherein: The outer plate includes a first inflection line that is a boundary between the first band-shaped convex portion and the band-shaped concave portion, and a plurality of the bonding portions are located on the first inflection line.

3. The vehicle door according to claim 1 or 2, characterized in that: The panel reinforcement gradually expands from a front end to a rear end of the outer panel.

4. The vehicle door according to claim 1 or 2, characterized in that: The plate reinforcement has: a first plate reinforcement portion extending from the front end to the rear end of the outer plate; a second plate reinforcement portion disposed below the first plate reinforcement portion and extending from the front end to the rear end of the outer plate; wherein the first panel reinforcement portion is fixed to the outer panel only by the adhesive portion arranged in the upper region; The second panel reinforcement portion is fixed to the outer panel via the bonding portions disposed in the upper region and the lower region.

5. The vehicle door according to claim 4, wherein: The first plate reinforcement portion is arranged to be inclined downward from the front end to the rear end of the outer plate. The second plate reinforcement portion is arranged to be inclined downward from the front end to the rear end of the outer plate. The downward inclination of the second plate reinforcement portion is greater than the downward inclination of the first plate reinforcement portion.

6. The vehicle door according to claim 1 or 2, characterized in that: The length of the second strip-shaped convex portion in the vertical direction increases toward the rear side of the vehicle.

7. The vehicle door according to claim 1 or 2, characterized in that: The adhesive portion is provided only on the first band-shaped convex portion and the band-shaped concave portion.

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