Vehicle side part structure

Abstract

To suppress panel vibration at a dash side part.SOLUTION: A vehicle side part structure 100 includes a dash side part 1 to which a door hinge is attached at a front side of a vehicle side part. The dash side part 1 includes: a side body outer panel 11; and a hinge reinforcement 12 positioned on the vehicle width direction inside relative to the side body outer panel 11. The side body outer panel 11 includes an outside rear wall 11a2 which faces rearward of a vehicle and extends in a vertical direction. The outside rear wall 11a2 has a door stopper attachment part to which a door stopper end is attached. The hinge reinforcement 12 includes an inside rear wall 12a2 opposing the outside rear wall 11a2 and extending in the vertical direction. The outside rear wall 11a2 and the inside rear wall 12a2 are mutually joined at the door stopper attachment part, and mutually joined at an upper junction W provided above the door stopper attachment part.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a vehicle side structure. [Background technology]

[0002] Generally, the front door of a vehicle side (i.e., the front side door) is rotatably supported by a hinge attached to a dash side portion extending in the vertical direction that forms the lower part of the front edge of the door opening provided at the front side of the vehicle side.

[0003] One example of a vehicle side structure having a dash side portion is the vehicle side structure disclosed in Patent Document 1. In the vehicle side structure disclosed in Patent Document 1, the dash side portion has a side body outer panel and a pillar hinge reinforcement arranged on the vehicle interior side of the side body outer panel. The pillar hinge reinforcement is formed with a hinge bulge portion that bulges outward in the vertical direction, and this hinge bulge portion improves the rigidity of the dash side portion (which may also be referred to as a hinge pillar portion). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2015-229369 Summary of the Invention [Problem to be solved by the invention]

[0005] However, in the vehicle side structure disclosed in Patent Document 1, there is a risk of panel vibration occurring in areas with relatively low rigidity in the dash side portion (hinge pillar portion), and there is room for improvement in terms of vibration and noise in this vehicle side structure.

[0006] SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a vehicle side structure that has a structure capable of suppressing panel vibrations in the dash side portion. [Means for solving the problem]

[0007] In order to achieve the above object, according to one aspect of the present invention, there is provided a vehicle side structure including a dash side portion that forms a lower portion of a front edge of a door opening provided on the front side of a vehicle side portion and to which a door hinge for opening and closing the door opening is attached. In this vehicle side structure, the dash side portion has a side body outer panel and a hinge reinforcement located inward in a vehicle width direction relative to the side body outer panel, and extends in a vertical direction, the side body outer panel has an outer rear wall that faces the rear of the vehicle and extends in a vertical direction, the outer rear wall has a door stopper mounting portion to which an end of a door stopper that determines the opening degree of the door is attached, the hinge reinforcement has an inner rear wall that faces the outer rear wall and extends in a vertical direction, the outer rear wall and the inner rear wall are joined to each other at the door stopper mounting portion and at an upper joint that is provided above the door stopper mounting portion. [Effects of the Invention]

[0008] According to one aspect of the present invention, it is possible to provide a vehicle side structure having a structure capable of suppressing panel vibration in a dash side portion. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a perspective view of a vehicle side structure according to an embodiment of the present invention, as viewed from the outside in the vehicle width direction. [Figure 2] FIG. 2 is a partially enlarged view of FIG. [Figure 3] FIG. 2 is a perspective view illustrating the internal structure of the vehicle side structure. [Figure 4] 3 is a partial cross-sectional view of the dash side portion taken along line AA shown in FIG. 2. [Figure 5]10A and 10B are diagrams for explaining a joining structure between an outer rear wall and an inner rear wall in the vehicle side structure. [Figure 6] 10A and 10B are diagrams illustrating modified examples of the upper joint portion. [Figure 7] FIG. 10 is a diagram illustrating another modified example of the upper joint portion. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. Fig. 1 is a perspective view of a vehicle side structure according to an embodiment of the present invention as seen from the outside in the vehicle width direction, and Fig. 2 is a partially enlarged view of Fig. 1. In the drawings, the arrow Fr direction indicates the front of the vehicle in the vehicle longitudinal direction, the arrow O direction indicates the outward direction in the vehicle width direction, and the arrow U direction indicates the upward direction in the vehicle vertical direction. In the following description, "front" and "rear" correspond to the front and rear in the vehicle longitudinal direction, and "up" and "down" correspond to the up and down in the vehicle vertical direction. In addition, in this embodiment, "left" and "right" are defined in the vehicle width direction when viewed from inside the vehicle cabin toward the front of the vehicle.

[0011] [Vehicle side structure overview] As shown in Figures 1 to 3, the vehicle side structure 100 is a structure that is applied to the front portion of the side of a vehicle. The vehicle side structure 100 is applied to both the front portion of the right side and the front portion of the left side of a vehicle. The following description will focus on the right vehicle side structure 100. A structure that is symmetrical in the left-right direction (vehicle width direction) to the right vehicle side structure 100 described below is applied as the left vehicle side structure.

[0012] A door opening D1 is provided at the front side of the side (vehicle side) of the vehicle to which the vehicle side structure 100 is applied. The door opening D1 is an opening that is opened and closed by a door D (more specifically, a front side door). In the drawing, for the purpose of illustrating the essential parts, only the outline of the door D is drawn with a dashed line.

[0013] 1 and 2, a vehicle side structure 100 has a dash side portion (hinge pillar portion) 1, a front pillar portion 2, a side sill portion 3, a cowl side member 4, and a front side member 5. Each of the dash side portion 1, the front pillar portion 2, the side sill portion 3, the cowl side member 4, and the front side member 5 forms part of the vehicle body structure at the vehicle side.

[0014] The dash side portion 1 forms the lower portion of the front edge of the door opening D1 provided at the front side of the vehicle, and extends in the vertical direction of the vehicle. The dash side portion 1 extends in the vertical direction of the vehicle on the outer side in the vehicle width direction of the dash panel 6 that separates the power compartment P at the front of the vehicle from the passenger compartment C. A hinge H of the door D that opens and closes the door opening D1 is attached to the dash side portion 1. In addition, an end portion of a door stopper S (specifically, a bracket S1 described later) that determines the opening angle of the door D is attached and fixed to the dash side portion 1.

[0015] The hinges H are provided on both the upper and lower sides of a front wall (not shown) of the door D (more specifically, a front panel that faces forward and extends in the vertical direction when the door is closed). In other words, two hinges H that are spaced apart in the vertical direction are attached to the dash side portion 1, and the door D is rotatably supported by the dash side portion 1 by the two hinges H.

[0016] The door stopper S has a bracket S1 and a lever S2. The bracket S1 is a member fixed to a portion of the dash side portion 1 that faces the front wall of the fully closed door D (an outer rear wall 11a2, described later). The lever S2 is a member supported by the bracket S1 so as to be swingable in the door opening and closing direction.

[0017] The base end of the lever S2 is rotatably supported by the bracket S1. The tip end of the lever S2 has a cross-sectional area larger than the cross-sectional area of ​​the base end side, passes through the front wall of the door D and a member attached to the back surface of the front wall, and is located inside the door D. The tip end of the lever S2 functions as a stopper portion that determines the opening degree of the door D (in other words, the maximum open angle position in the opening direction). When the door is open, the end face of the stopper portion of the lever S2 on the bracket S1 side abuts against the end face of the member attached to the back surface of the front wall of the door D, thereby determining the opening degree of the door D. In the door closed state, the lever S2 extends rearward, and the stopper portion of the lever S2 is located inside the door D and separated rearward from the front wall of the door D.

[0018] The front pillar portion 2 forms the front edge of the door opening D1 in cooperation with the dash side portion 1. In this embodiment, the front pillar portion 2 forms the upper portion of the front edge of the door opening D1 above the dash side portion 1, and extends so as to move further rearward from the dash side portion 1 as it extends upward.

[0019] Specifically, the upper portion of the portion constituting the front edge of the door opening D1, which is made up of the dash side portion 1 and the front pillar portion 2, is bent toward the rear of the vehicle at a bent portion 7. The portion below the bent portion 7 constitutes the dash side portion (hinge pillar portion) 1, and the portion above the bent portion 7 constitutes the front pillar portion 2. The rigidity of the bent portion 7 is relatively high due to the bent shape.

[0020] The side sill portion 3 forms the lower edge of the door opening D1 and extends rearward from the lower portion of the dash side portion 1. The front lower corner of the periphery of the door opening D1 is formed by a bent portion 8 that connects the front portion of the side sill portion 3 to the lower portion of the dash side portion 1. The dash side portion 1 extends vertically from the lower bent portion 8 to the upper bent portion 7.

[0021] The cowl side member 4 is a member that extends generally forward from an upper portion of the dash side portion 1. Specifically, the rear portion of the cowl side member 4 extends generally in the front-to-rear direction at a height position corresponding to the lower end of the bent portion 7. The cowl side member 4 has a cowl side member outer panel 4a and a cowl side member inner panel (not shown) that is positioned inward in the vehicle width direction from the cowl side member outer panel 4a.

[0022] The front side members 5 are members extending in the longitudinal direction of the vehicle in front of the side sill portions 3, and extend so as to be continuous with the side sill portions 3. The front side members 5 are located below the cowl side members 4.

[0023] Here, since the dash side portion has a relatively large area, panel vibration may occur in a portion of the dash side portion that has a relatively low rigidity. Vehicle side portion structure 100 has the structure described in detail below to suppress panel vibration in dash side portion 1 and improve vibration noise.

[0024] [Details of vehicle side structure] Next, the structure of the vehicle side section structure 100 will be described in detail. Fig. 3 is a perspective view for explaining the internal structure of the vehicle side section structure, and Fig. 4 is a partial cross-sectional view of the dash side section 1 taken along line AA shown in Fig. 2. Note that in Fig. 3, in order to explain the internal structure, the door D, hinge H, door stopper S, and a side body outer panel 11, which will be described later, are omitted from the illustration.

[0025] Referring to Figures 1 to 4, the dash side portion 1 has a side body outer panel 11 (see Figures 1, 2 and 4), a hinge reinforcement 12 (see Figures 3 and 4), and an inner panel 13 (see Figure 4), and extends in the vertical direction of the vehicle.

[0026] In the illustrated example, the side body outer panel 11 extends to the range of the front pillar portion 2 and the side sill portion 3, and also constitutes the outermost panel in the vehicle width direction of each of the front pillar portion 2 and the side sill portion 3. In other words, the outermost panel of the dash side portion 1, the outermost panel of the front pillar portion 2, and the outermost panel of the side sill portion 3 are integrally formed in the side body outer panel 11, and a part of the side body outer panel 11 constitutes the outermost panel portion of the dash side portion 1.

[0027] The side body outer panel 11 has, at the dash side portion 1, an outer bulging portion 11a that bulges outward in the vehicle width direction and extends in the vertical direction, and an outer rear flange portion 11b that extends rearward from the outer bulging portion 11a.

[0028] The outer bulge 11a has an outer top surface 11a1 and an outer rear wall 11a2. The outer top surface 11a1 faces outward in the vehicle width direction and extends in the vertical direction. The outer rear wall 11a2 faces toward the rear of the vehicle and extends in the vertical direction. Specifically, the outer rear wall 11a2 extends inward in the vehicle width direction from the rear edge of the outer top surface 11a1 and faces the front wall (not shown) of the door D in the closed state.

[0029] The outer rear flange portion 11b extends rearward from the inner end in the vehicle width direction of the outer rear wall 11a2 of the outer bulging portion 11a.

[0030] The hinge reinforcement 12 is a panel located inward in the vehicle width direction relative to the side body outer panel 11 in the dash side portion 1. In the illustrated example, the hinge reinforcement 12 is disposed between the side body outer panel 11 and the inner panel 13.

[0031] The hinge reinforcement 12 has an inner bulging portion 12a that bulges outward in the vehicle width direction inside the outer bulging portion 11a and extends in the up-down direction, and an inner rear flange portion 12b that extends rearward from the inner bulging portion 12a.

[0032] The inner bulge 12a has an inner top surface 12a1 and an inner rear wall 12a2. The inner top surface 12a1 faces outward in the vehicle width direction, extends in the vertical direction, and faces the outer top surface 11a1. The inner rear wall 12a2 faces rearward of the vehicle, extends in the vertical direction, and faces the outer rear wall 11a2. Specifically, the inner rear wall 12a2 extends inward in the vehicle width direction from the rear edge of the inner top surface 12a1. In this way, the hinge reinforcement 12 has the inner rear wall 12a2 that faces the outer rear wall 11a2 of the side body outer panel 11 and extends in the vertical direction.

[0033] The inner rear flange portion 12b extends rearward from the inner end in the vehicle width direction of the inner rear wall 12a2 of the inner bulging portion 12a.

[0034] 4, the inner panel 13 is a panel located inward in the vehicle width direction relative to the hinge reinforcement 12 in the dash side portion 1. The inner panel 13 extends generally in the front-to-rear direction. A joining flange portion 13a is formed at the rear portion of the inner panel 13 and is joined by spot welding or the like to the outer rear flange portion 11b of the side body outer panel 11 and the inner rear flange portion 12b of the hinge reinforcement 12. In the illustrated example, three flange portions (12b, 11b, 13a) are joined together in a triplet, with the inner rear flange portion 12b sandwiched between the outer rear flange portion 11b and the joining flange portion 13a.

[0035] Next, the attachment locations of the hinge H and the door stopper S to the dash side portion 1 will be described.

[0036] 1 and 2, as described above, the two hinges H are attached to the dash side portion 1. The upper of the two hinges H is attached to a portion of the outer top surface portion 11a1 that is located rearward of the joint between the dash side portion 1 and the cowl side member 4 (cowl side member outer panel 4a) by fasteners such as bolts and nuts (not shown). In other words, the rear of the cowl side member 4, the joint between the dash side portion 1 and the cowl side member 4, and the attachment point of the upper hinge H to the dash side portion 1 are aligned in the fore-and-aft direction of the vehicle.

[0037] 3, in the illustrated example, a hinge support bracket 9 formed to bulge outward in the vehicle width direction is joined to a portion of the hinge reinforcement 12 corresponding to the upper hinge H. Specifically, at a height position corresponding to the upper hinge H, a gap is provided between the outer top surface 11a1 of the outer bulging portion 11a and the inner top surface 12a1 of the inner bulging portion 12a, and the hinge support bracket 9 is disposed in this gap. The hinge support bracket 9 is joined to the outer surface of the inner bulging portion 12a, and the bracket top surface 9a of the hinge support bracket 9 facing outward in the vehicle width direction abuts against the back surface of the outer top surface 11a1 of the outer bulging portion 11a. The upper hinge H is attached to the dash side portion 1 by being fastened together with the outer top surface 11a1 and the inner top surface 12a1 by the fasteners (not shown).

[0038] Of the two hinges H, the lower hinge H is joined to the front lower part of the dash side part 1 located near the lower bent part 8. In the illustrated example, the lower hinge H is attached to the outer top surface part 11a1 of the outer bulging part 11a in a part of the dash side part 1 located roughly behind the front side member 5 by fasteners such as bolts and nuts (not shown).

[0039] In the illustrated example, the portion of the inner top surface portion 12a1 of the hinge reinforcement 12 that corresponds to the lower hinge H bulges outward slightly in the vehicle width direction to form a lower bulge portion 12a3. The lower bulge portion 12a3 abuts against the back surface of the outer top surface portion 11a1 of the outer bulge portion 11a. The lower hinge H is attached to the dash side portion 1 by being fastened together with the outer top surface portion 11a1 and the lower bulge portion 12a3 by the fastener (not shown).

[0040] As described above, the door stopper S is attached to the outer rear wall 11a2 of the dash side portion 1 (side body outer panel 11). That is, the side body outer panel 11 has the outer rear wall 11a2 that faces the rear of the vehicle and extends in the vertical direction in the dash side portion 1, and has a door stopper mounting portion 11c to which an end portion (bracket S1) of the door stopper S is attached. The bracket S1 of the door stopper S is attached to the dash side portion 1 at the door stopper mounting portion 11c of the dash side portion 1 by a first bolt B1 (see FIGS. 1 and 2) and a first nut N1 (see FIG. 3).

[0041] The door stopper mounting portion 11c is provided on the outer rear wall 11a2 at a predetermined height position in the up-down direction between the upper hinge H and the lower hinge H. In the illustrated example, the door stopper mounting portion 11c is provided on the outer rear wall 11a2 at a height position closer to the lower hinge H than the center of the outer rear wall 11a2 in the up-down direction.

[0042] In this embodiment, the cowl side member 4 is joined to the front upper portion of the dash side portion 1 and extends forward.

[0043] Specifically, the rear portion of the cowl side member 4 is joined by spot welding or the like to the front upper portion of the dash side portion 1 located near the lower end of the bent portion 7 (that is, the front upper portion of the dash side portion 1 below the bent portion 7 and close to the lower end of the bent portion 7, or more specifically, the front portion in the region near the lower end of the bent portion). More specifically, the rear end of the cowl side member outer panel 4a of the cowl side member 4 is joined by spot welding or the like to the dash side portion 1 so as to cover the front upper portion of the dash side portion 1 (the front upper portion of the outer top surface portion 11a1 of the outer bulging portion 11a) from the outside in the vehicle width direction. Since the rigidity of the bent portion 7 is originally relatively high, the rigidity of the portion near the lower end of the bent portion is also relatively high. Therefore, by joining the cowl side member 4 to the front portion of the portion near the lower end of the bent portion (the front upper portion of the dash side portion 1 located near the lower end of the bent portion 7), the rigidity of the portion near the lower end of the bent portion is further increased.

[0044] Next, the joining structure between the outer rear wall 11a2 and the inner rear wall 12a2 will be described with reference to Fig. 2 to Fig. 5. Fig. 5 is a diagram for explaining the joining structure between the outer rear wall 11a2 and the inner rear wall 12a2.

[0045] The outer rear wall 11a2 and the inner rear wall 12a2 are each formed as a generally flat wall (planar portion) that extends vertically across the entire dash side portion 1 from the upper end 1a to the lower end 1b of the dash side portion 1. Therefore, the outer rear wall 11a2 and the inner rear wall 12a2 are each low rigidity portions when used alone. As a result, when a load is applied to the dash side portion 1 while the vehicle is running, panel vibrations may occur in the vertical wall portions of the double-wall structure consisting of the outer rear wall 11a2 and the inner rear wall 12a2.

[0046] In order to suppress the panel vibrations described above, the outer rear wall 11a2 and the inner rear wall 12a2 are joined to each other at the door stopper mounting portion 11c and at an upper joint W provided above the door stopper mounting portion 11c. In other words, the outer rear wall 11a2 and the inner rear wall 12a2 are joined to each other at two joints: the door stopper mounting portion 11c and the upper joint W, and the outer rear wall 11a2 and the inner rear wall 12a2 are joined to each other not only at the door stopper mounting portion 11c but also at the upper joint W. In other words, the outer rear wall 11a2 and the inner rear wall 12a2 are joined to each other not only at the upper joint W but also at the door stopper mounting portion 11c.

[0047] The door stopper mounting portion 11c and the upper joint portion W do not mean "joining means" between the outer rear wall 11a2 and the inner rear wall 12a2. The door stopper mounting portion 11c and the upper joint portion W are joint points or joint areas (joining ranges) having a planar extent, and mean "joining locations." In other words, the outer rear wall 11a2 and the inner rear wall 12a2 are joined at the door stopper mounting portion 11c and the upper joint portion W, respectively, using appropriate joining means such as fasteners such as bolts and nuts, adhesives, or welding.

[0048] In this way, by joining the outer rear wall 11a2 and the inner rear wall 12a2 at two locations, the rigidity of the vertical wall portion of the double-wall structure facing rearward, which is made up of the outer rear wall 11a2 and the inner rear wall 12a2, is improved.

[0049] In this embodiment, the outer rear wall 11a2 and the inner rear wall 12a2 are joined together by a first bolt B1 and a first nut N1 at the door stopper mounting portion 11c, and by an adhesive W1 at the upper joint W. That is, in this embodiment, the outer rear wall 11a2 and the inner rear wall 12a2 are joined together at the door stopper mounting portion 11c by the first bolt B1 and the first nut N1, and as shown in FIG. 4, the outer rear wall 11a2 and the inner rear wall 12a2 are joined together at the upper joint W by the adhesive W1. For example, a foamable adhesive may be used as the adhesive W1. The foamable adhesive W1 easily and reliably fills the gap between the outer rear wall 11a2 and the inner rear wall 12a2. The foamable adhesive W1 presses against the outer rear wall 11a2 and the inner rear wall 12a2 by foaming, and stretches to reliably adhere to the outer rear wall 11a2 and the inner rear wall 12a2 over a wide area, thereby improving the reliability of the adhesive strength.

[0050] Specifically, in the illustrated example, at the door stopper mounting portion 11c, the outer rear wall 11a2 and the inner rear wall 12a2 are fastened together with the bracket S1 using a first bolt B1 and a first nut N1 for mounting (fixing) the bracket S1 of the door stopper S to the dash side portion 1. As a result, the outer rear wall 11a2 and the inner rear wall 12a2 are joined to each other at the door stopper mounting portion 11c.

[0051] Specifically, the first bolt B1 is inserted through a bolt insertion hole (not shown) formed in the bracket S1, an outer bolt insertion hole 11a21 (see FIG. 5, which will be described later) formed in the door stopper mounting portion 11c of the outer rear wall 11a2, and an inner bolt insertion hole 12a21 (see FIG. 3) formed in the inner rear wall 12a2. A portion of the inner rear wall 12a2 corresponding to the door stopper mounting portion 11c of the outer rear wall 11a2 bulges slightly rearward so as to abut against the back surface of the outer rear wall 11a2, forming a rear bulge 12a4. The inner bolt insertion hole 12a21 opens in this rear bulge 12a4. The first bolt B1 is threaded into the first nut N1, which serves as a weld nut welded to the back surface of the inner rear wall 12a2 (the periphery of the inner bolt insertion hole 12a21), thereby joining the outer rear wall 11a2 and the inner rear wall 12a2 to each other at the door stopper mounting portion 11c.

[0052] 4, the outer rear wall 11a2 and the inner rear wall 12a2 are slightly spaced apart from each other in the front-to-rear direction at the upper joint W. The outer rear wall 11a2 and the inner rear wall 12a2 are joined to each other by filling the gap between them at the upper joint W with adhesive W1.

[0053] In this embodiment, the upper joint W includes a rear portion Wr located rearward of the joint between the dash side portion 1 and the cowl side member 4. In other words, the rear portion Wr included in the upper joint W is located rearward of a front portion of the vicinity of the lower end of the bent portion, which is the joint between the dash side portion 1 and the cowl side member 4, and is adjacent to this front portion. Specifically, the rear portion Wr of the upper joint W is the upper rear portion of the dash side portion 1 located near the lower end of the bent portion 7 (that is, the upper rear portion of the dash side portion 1 below and close to the lower end of the bent portion 7, or more specifically, the rear portion of the vicinity of the lower end of the bent portion). As described above, by joining the cowl side member 4 to the front portion of the vicinity of the lower end of the bent portion, the rigidity of the vicinity of the lower end of the bent portion is increased. Furthermore, by setting the rear portion Wr of the upper joint W at the rear side of the vicinity of the lower end of the bent portion, the rigidity of the vicinity of the lower end of the bent portion is further increased, which in turn effectively improves the rigidity of the vertical wall portion of the double-wall structure made up of the outer rear wall 11a2 and the inner rear wall 12a2. Furthermore, by joining the cowl side member 4 to the front side of the vicinity of the lower end of the bent portion, the rigidity of the vicinity of the rear portion Wr of the upper joint W is effectively improved.

[0054] In the illustrated example, the upper joint W is set above the door stopper mounting portion 11c as a joint area (joint range) having a planar extent along the outer rear wall 11a2 and the inner rear wall 12a2. In Figures 1 to 3, the outer edge of the upper joint W is depicted by a two-dot chain line. That is, in this embodiment, the upper joint W is provided in a range (joint area / joint range) having a predetermined length L in the vertical direction within the range from the door stopper mounting portion 11c to the upper end 1a of the dash side portion 1 (in other words, the lower end of the bent portion 7).

[0055] 5, in this embodiment, when the central height position in the up-down direction of the range from the door stopper mounting portion 11c to the upper end 1a of the dash side portion 1 is defined as a reference point X, the range of the upper joint W having the predetermined length L is set to include the reference point X. In the illustrated example, the upper joint W extends from a height position directly above the door stopper mounting portion 11c to a height position of the upper end of the cowl side member 4, and is set as a range including the reference point X. Referring to FIG. 3, the height position of the upper end of the upper joint W is also aligned with the height position of the upper end of the rear portion of the hinge support bracket 9.

[0056] Next, the panel vibration suppression effect of the dash side portion 1 of the vehicle side portion structure 100 of this embodiment will be described with reference to FIG.

[0057] In Figure 5, the primary mode panel vibration Z1 and the secondary mode panel vibration Z2 that can occur in the vertical wall (flat portion) of the double-wall structure consisting of the outer rear wall 11a2 and the inner rear wall 12a2 when the above-mentioned structure is not applied are each exaggeratedly depicted by thick dashed lines.

[0058] The primary mode panel vibration Z1 occurs primarily when the outer rear wall 11a2 and the inner rear wall 12a2 are not joined to each other over the entire range from the upper end 1a to the lower end 1b of the dash side portion 1. The primary mode panel vibration Z1 is a vibration mode in which the panel oscillates (deforms) back and forth with an antinode located at the center height position in the up-down direction over the entire range from the upper end 1a to the lower end 1b of the dash side portion 1. The primary mode panel vibration Z1 can be suppressed by joining the outer rear wall 11a2 and the inner rear wall 12a2 to each other at either the door stopper mounting portion 11c or the upper joint W.

[0059] The secondary mode panel vibration Z2 mainly occurs when the outer rear wall 11a2 and the inner rear wall 12a2 are joined only by the door stopper mounting portion 11c. The secondary mode panel vibration Z2 is a vibration mode in which the panel oscillates (deforms) back and forth with the antinode at the center height position (reference point X) in the vertical direction in the range from the door stopper mounting portion 11c to the upper end 1a of the dash side portion 1.

[0060] In the dash side portion 1 of the vehicle side structure 100, the outer rear wall 11a2 and the inner rear wall 12a2 are joined to each other at two locations, the door stopper mounting portion 11c and the upper joint W, so that the primary mode panel vibration Z1 is effectively suppressed and the secondary mode panel vibration Z2 is also suppressed.

[0061] According to the vehicle side section structure 100 of this embodiment, the outer rear wall 11a2 and the inner rear wall 12a2 are joined to each other at the door stopper mounting portion 11c, and are also joined at an upper joint W provided above the door stopper mounting portion 11c. As a result, as described above, the rigidity of the vertical wall portions of the double-wall structure made up of the outer rear wall 11a2 and the inner rear wall 12a2 is improved, panel vibration of the vertical walls (flat portions) of the double-wall structure is suppressed, and vibration noise is effectively improved.

[0062] As described above, the vehicle side portion structure 100 according to this embodiment has a structure that can suppress panel vibrations in the dash side portion 1.

[0063] In this embodiment, the cowl side member 4 is joined to the front upper portion of the dash side portion 1, and the upper joint W includes a rear portion Wr located rearward of the joint between the dash side portion 1 and the cowl side member 4. As a result, the rigidity of the vicinity of the rear portion Wr of the upper joint W is effectively improved, and the rigidity of the vertical wall portion of the double-wall structure consisting of the outer rear wall 11a2 and the inner rear wall 12a2 is also effectively improved. Therefore, panel vibration in the dash side portion 1 is more effectively suppressed.

[0064] In this embodiment, the upper joint W is provided over a range having a predetermined length L in the vertical direction, from the door stopper mounting portion 11c to the upper end 1a of the dash side portion 1. The outer rear wall 11a2 and the inner rear wall 12a2 are joined over a wide range, thereby significantly suppressing panel vibration.

[0065] In this embodiment, when the central height position in the vertical direction of the range from the door stopper mounting portion 11c to the upper end 1a of the dash side portion 1 is defined as a reference point X, the range of the upper joint W having the predetermined length L is provided so as to include the reference point X. As a result, for the second-mode panel vibration Z2, the upper joint W is provided in a range including a height position corresponding to the antinode of the panel vibration at which the deformation amount (amplitude) is maximum, and thus the panel vibration is efficiently suppressed.

[0066] In this embodiment, the outer rear wall 11a2 and the inner rear wall 12a2 are joined by an adhesive W1 at the upper joint W. As a result, joining is performed efficiently over a wide range.

[0067] Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and further modifications and changes are possible based on the technical concept of the present invention.

[0068] For example, in this embodiment, the upper joint W extends from a height position directly above the door stopper mounting portion 11c to a height position at the upper end of the cowl side member 4, but is not limited thereto. From the viewpoint of efficient suppression of the second-mode panel vibration Z2, the upper joint W may be set only near the center in the vertical direction of the range from the door stopper mounting portion 11c to the upper end 1a of the dash side portion 1 (for example, a range extending up and down from the reference point X to a quarter division point). Specifically, if L1 (see FIG. 5) is a quarter of the length of the entire range from the door stopper mounting portion 11c to the upper end 1a of the dash side portion 1, the upper joint W may be set in a range extending at least from the center height position (the reference point X, more specifically, the position of the antinode of the second-mode panel vibration) to a height position (quarter division point) that is at least L1 (see FIG. 5) above and below.

[0069] Furthermore, the joining means at the upper joint W is not limited to adhesive W1, and may be a bolt and nut (second bolt B2 and second nut N2) as shown in Fig. 6, or spot welding as shown in Fig. 7. In these cases, for example, the portion of the inner rear wall 12a2 corresponding to the upper joint W is formed to bulge slightly rearward so as to abut against the rear surface of the outer rear wall 11a2, as shown in Figs. 6 and 7. Furthermore, when the joining means at the upper joint W are fasteners such as bolts and nuts or welding such as spot welding, the joining locations at the upper joint W may be multiple locations spaced apart from each other in the vertical direction, or may be a single location (for example, reference point X). [Explanation of symbols]

[0070] 1 Dash side 1a top end 1b Bottom edge 11 Side body outer panel 11a Outer bulge 11a1 Outer top part 11a2 Lateral back wall 11a21 Outer bolt insertion hole 11b Outer rear flange 11c Door stopper mounting part 12 Hinge Reinforcement 12a Inner bulge 12b Inner rear flange 12a1 Inner top part 12a2 Medial back wall 12a21 Inner bolt insertion hole 12a3 Lower bulge 12a4 Posterior bulge 13 Inner panel 13a Joint flange 2 Front pillar section 3 Side sill 4 Cowl side member 4a Cowl side member outer panel 5 Front side member 6 Dash Panel 7 Bend 8 Bend 9 Hinge support bracket 9a Top surface of bracket 100 Vehicle side structure B1 First bolt B2 Second bolt C Cabin D-door D1 Door opening H hinge L specified length L1 1 / 4 of the total length N1 First nut N2 Second nut P power room S door stopper S1 Bracket (end) S2 Lever W Upper joint W1 Adhesive Wr rear part X reference point Z1 1st mode panel vibration Z2 Second mode panel vibration

Claims

1. A vehicle side structure including a dash side portion that forms a lower portion of a front edge of a door opening provided at a front side of the vehicle side portion and to which a door hinge that opens and closes the door opening is attached, the dash side portion has a side body outer panel and a hinge reinforcement member located on the inner side of the side body outer panel in the vehicle width direction, and extends in the up-down direction; the side body outer panel has an outer rear wall that faces a rear of the vehicle and extends in a vertical direction, the outer rear wall having a door stopper mounting portion to which an end of a door stopper that determines an opening degree of the door is attached, The hinge reinforcement has an inner rear wall that faces the outer rear wall and extends in the vertical direction, The vehicle side structure is characterized in that the outer rear wall and the inner rear wall are joined to each other at the door stopper mounting portion and at an upper joint provided above the door stopper mounting portion.

2. a front pillar portion that forms an upper portion of a front edge of the door opening above the dash side portion and extends so as to move away from the dash side portion rearward as it extends upward; a cowl side member joined to a front upper portion of the dash side portion and extending forward; Further comprising:

2. The vehicle side structure according to claim 1, wherein the upper joint portion includes a rear portion located rearward of a joint between the dash side portion and the cowl side member.

3. 2. The vehicle side structure according to claim 1, wherein the upper joint portion is provided in a range having a predetermined length in the vertical direction within a range from the door stopper mounting portion to an upper end of the dash side portion.

4. 4. The vehicle side structure according to claim 3, wherein when the center height position in the vertical direction of the range from the door stopper mounting portion to the upper end of the dash side portion is taken as a reference point, the range having the predetermined length of the upper joint portion is set to include the reference point.

5. The vehicle side structure according to claim 1 , wherein the outer rear wall and the inner rear wall are joined together at the upper joint portion with an adhesive.

Images