JP2019116151A - Vehicle body side section structure for single-side center pillar-less vehicle - Google Patents

Abstract

To improve a rigidity of a side sill from a front corner section of a section where a center pillar should be originally present.SOLUTION: A single-side center pillar-less vehicle includes: a first side panel outer 16 at a center-pillar-less side; a second side panel outer at a side where a center pillar is present; a front reinforcement member 50 that reinforces a front corner section 46 of a door opening section 30; and a center reinforcement member 52 that reinforces a center section 48 corresponding to, in a side sill of the first side panel outer 16, a position where a side sill of the second side panel outer and the center pillar are connected to each other. The first side panel outer 16 has a high-rigidity section 28 that has a higher rigidity than that of the corresponding section of the second side panel outer between the front corner section 46 to the center section 48. The front reinforcement member 50 and the center reinforcement member 52 are respectively joined to the high-rigidity section 28.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a vehicle body side structure of a one-side center pillarless vehicle.

  For example, Patent Document 1 discloses a one-side center pillarless vehicle in which a reinforcing member is provided in a front corner portion on the center pillarless side and a reinforcing member is provided in a cross member portion.

  According to Patent Document 1, by configuring the one-side center pillarless vehicle in this manner, it is possible to eliminate the difference in rigidity between the left and right of the vehicle body.

JP 2004-142683 A

  By the way, on the side of the center pillar, the door opening becomes larger due to the absence of the center pillar. In particular, deformation of the front corner portion, which is a joint portion between the lower frame (side sill) of the door opening and the front frame (lower portion of the front pillar), is likely to occur.

  In this regard, in Patent Document 1, reinforcing members are individually provided in the front corner portion and the cross member portion. However, in patent document 1, the rigidity of the member arrange | positioned between the reinforcement member of a front corner part, and the reinforcement member of a cross member part is low. For this reason, in the structure disclosed in Patent Document 1, stress concentrates on a member disposed between the reinforcing member of the front corner portion and the reinforcing member of the cross member portion to eliminate the difference in rigidity between the left and right of the vehicle body. Is difficult.

  The present invention has been made in view of the above-mentioned point, and provides a vehicle body side structure of a one-side center pillarless vehicle capable of improving the rigidity of the side sill from the front corner portion to the portion where the original center pillar should be. Intended to be provided.

  In order to achieve the above object, the present invention relates to a first side panel outer on a center pillar-less side and a first door opening provided on the first side panel outer in a vehicle body side structure of a one-side center pillarless vehicle. A second side panel outer on a side having a center pillar, a second door opening portion provided on the second side panel outer, a front reinforcing member for reinforcing a front corner portion of the first door opening portion, and The side sill of the one side panel outer includes a center reinforcing member that reinforces a center portion corresponding to a position where the side sill of the second side panel outer and the center pillar are connected, the first side panel outer being Higher rigidity than the same part of the second side panel outer from the front corner part to the center part Has a high rigidity portion, said front reinforcement member and the center reinforcement member is characterized by being respectively joined to the high rigidity portion.

  "Corresponding" means that a portion of the first side panel outer on the center pillarless side and a portion of the second side panel outer having the center pillar are at the same position in the vehicle longitudinal direction.

  According to the present invention, it is possible to obtain the vehicle body side structure of a one-side center pillarless vehicle capable of improving the rigidity of the side sill from the front corner portion to the portion where the original center pillar should be.

1 is a schematic structural perspective view of a vehicle to which a vehicle body side structure according to an embodiment of the present invention is applied. It is a partially permeated side view of the 1st side panel outer by the side of a center pillar shown in FIG. It is an enlarged side view showing a front reinforcement member and a center reinforcement member joined to a highly rigid part of the 1st side panel outer. (A) is a side view which shows the center reinforcement member joined to the 1st side panel inner, (b) is a side view showing the other center reinforcement member joined to the 2nd side panel inner. It is an enlarged side view of a center reinforcement member and a rear reinforcement member joined to a highly rigid part. It is a top view which shows the lower structure of the vehicle of FIG. (A) is a plane enlarged view which shows the upper surface of the center reinforcement member by the side of a center pillar, (b) is a plane enlarged view which shows the upper surface of the center reinforcement member by the side which has a center pillar. It is sectional drawing along the VIII-VIII line of FIG. 7 (a). It is an end elevation along the IX-IX line of FIG. It is an end elevation along the XX line of FIG.

  Next, embodiments of the present invention will be described in detail with reference to the drawings as appropriate.

  As shown in FIG. 1, a vehicle (one-side center pillarless vehicle) 10 to which a vehicle body side structure according to an embodiment of the present invention is applied is a vehicle body left side portion 12a on the center pillarless side and an opposite along the vehicle width direction. And a vehicle body right side portion 12b having a center pillar 14 disposed on the side. The vehicle body left side portion 12a on the center pillarless side is disposed on one side along the vehicle width direction. The vehicle body right side portion 12b on the side having the center pillar 14 is disposed on the other side along the vehicle width direction.

  The left side 12a of the vehicle body includes a first side panel outer 16 (see FIG. 2) provided outside the left side 12a of the vehicle and a first side panel inner 17 provided inside the left side 12a of the vehicle (FIG. )) And. The vehicle body right side portion 12b is provided with a second side panel outer 18 (see FIG. 2) provided outside the vehicle body right side portion 12b and a second side panel inner 19 provided inside the vehicle body right side portion 12b (FIG. )) And.

  The first side panel outer 16 is a panel that constitutes the outer side wall of the vehicle body left side portion 12a. As shown in FIG. 2, the first side panel outer 16 has a side sill outer 20, a front pillar outer 22, a rear pillar outer 24, and a roof side rail outer 26. Lower portions of the side sill outer 20 and the front pillar outer 22 constitute a high rigidity portion 28 formed integrally. The "high rigidity portion 28" will be described in detail later.

  Further, the first side panel outer 16 is formed with a substantially rectangular door opening (first door opening) 30 in a side view. The door opening 30 is formed by an internal space surrounded by the side sill outer 20, the front pillar outer 22, the rear pillar outer 24, and the roof side rail outer 26.

  As shown in FIG. 1, the second side panel outer 18 is a panel that constitutes the outer side wall of the vehicle body right side portion 12 b. The second side panel outer 18 includes a side sill outer 32, a front pillar outer 34, a center pillar outer 36, a rear pillar outer 38, and a roof side rail outer 40.

  Further, two door openings are formed in the second side panel outer 18 along the longitudinal direction of the vehicle. The two door openings are composed of a front door opening 42 located in front of the center pillar 14 in the vehicle and a rear door opening 44 located in rear of the center pillar 14 in the vehicle. The front door opening 42 and the rear door opening 44 function as a second door opening.

  The door opening 30 formed in the first side panel outer 16 has an opening area larger than the front door opening 42 and the rear door opening 44 formed in the second side panel outer 18. Further, the opening area of the door opening 30 is larger than the total opening area obtained by adding the opening area of the front door opening 42 and the opening area of the rear door opening 44 respectively.

  As shown in FIG. 2, the first side panel outer 16 on the center pillarless side has a high rigidity that extends from the front corner 46 to the rear pillar via the center 48 that is the joint between the side sill and the center pillar. The unit 28 is provided. The center portion 48 is at the same position in the vehicle front-rear direction as the joint portion between the side sill of the vehicle body right side portion 12 b on the side having the center pillar 14 and the center pillar 14.

  The high rigidity portion 28 is integrally formed in a substantially L shape in a side view of the side sill outer 20 and the lower side of the front pillar outer 22. The high rigidity portion 28 is higher in rigidity and strength than the side sill outer 32 and the front pillar outer 34 of the second side panel outer 18 having the center pillar 14. For example, in the present embodiment, the plate thickness of the first side panel outer 16 on the center pillar less side is thicker than the plate thickness of the second side panel outer 18 having the center pillar 14. The high rigidity portion 28 is higher in rigidity and strength than the other portions of the first side panel outer 16. The enhancement of the rigidity and strength of the high rigidity portion 28 is performed, for example, by an increase in plate thickness, use of an ultrahigh tensile steel plate, or the like.

  As shown in FIG. 2, the vehicle rear end portion 28 a of the high rigidity portion 28 extends below the rear pillar outer 24. An upper end 28 b on the vehicle front side of the high rigidity portion 28 formed by the front pillar outer 34 extends upward from the center of the front pillar outer 22.

  A front reinforcing member 50 having a substantially L shape in a side view is joined to the front corner portion 46 of the high rigidity portion 28. Further, a center reinforcing member 52 extending substantially linearly along the vehicle longitudinal direction is joined to the center portion 48 of the high rigidity portion 28.

  The “center portion” means that the side sill of the second side panel outer 18 and the center pillar 14 are connected to the side sill of the first side panel outer 16 from the vehicle rear end of the front reinforcing member 50 to the vehicle rear. The position corresponds to the position. The "front corner portion" refers to a portion where the lower end of the front pillar and the vehicle front end portion of the side sill are joined.

  As shown in FIGS. 9 and 10, the axial straight section of the side sill portion of the high rigidity portion 28 has a substantially hat shape, and the upper flange portion 54a, the upper surface portion 54b, the curved portion 54c, and the side wall portion 54d , A lower surface portion 54e and a lower flange portion 54f.

  The center reinforcing member 52 has a substantially hat-like shape in an axial straight section, and includes an upper flange 52a, an upper wall 52b, a vertical side wall 52c, an inclined wall 52d, and a lower flange 52e. There is. The upper end of the upper flange portion 52 a is integrally joined by the side sill outer 20 and the side sill inner 56. A door seal member 58 having a flange portion 58a is attached to the joint portion. The upper wall portion 52b is bent outward in the vehicle width direction from the lower end of the upper flange portion 52a and extends in a substantially horizontal direction.

  The vertical side wall 52c is continuous with the outer end of the upper wall 52b in the vehicle width direction, and extends in a substantially vertically downward direction. The inclined wall portion 52d is continuous with the lower end portion of the vertical side wall portion 52c, and is formed of an inclined surface which falls from the outside in the vehicle width direction toward the inside in the vehicle width direction. The lower flange portion 52e is continuous with the lower end portion of the inclined wall portion 52d, and the lower end thereof is integrally joined by the side sill outer 20 and the side sill inner 56.

  Further, a plurality of substantially circular openings 60 (see FIGS. 3 and 10) are formed in the vehicle rear end portion on the upper side of the inclined wall portion 52d in a side view. On the lower side of the inclined wall 52d, a plurality of substantially rectangular openings 62 (see FIGS. 3 and 9) are formed in a side view. The rectangular openings 62 are arranged substantially in a straight line, spaced apart along the longitudinal direction of the vehicle.

  The upper wall 52b of the center reinforcing member 52 is provided with an upper surface 66 whose length in the vehicle width direction is longer than that of an upper wall 64b of another reinforcing member 64 described later. That is, the length of the upper surface 66 (see FIG. 7A) of the upper wall 52b of the center reinforcing member 52 in the vehicle width direction is greater than the length of the upper surface of the upper wall 64b of the other reinforcing member 64 in the vehicle width direction. Is also getting longer.

  As shown in FIG. 8, a door striker 68 (door engaging member) and a door catcher (door engaging member) 70 are attached to the upper surface 66 at predetermined intervals in the vehicle longitudinal direction. Further, the upper surface 66 has two mounting surfaces 72, 72 spaced apart along the vehicle front-rear direction of the door catcher 70, and a recessed portion 74 located between the two mounting surfaces 72, 72 and recessed downward. . The recess 74 extends in the vehicle width direction substantially perpendicular to the extending direction of the upper surface 66. A recess 75 (see FIG. 7) is also formed on the upper surface of the side sill outer 20, and the recess 75 is provided at a position overlapping the recess 74 formed on the upper surface 66 of the center reinforcing member 52 in the vertical direction. (See Figure 8).

  The door catcher 70 accommodates a convex portion 76 (see FIG. 10) provided on a door (not shown). The door catcher 70 is a catch that accommodates a pair of mounting plates 80, 80 having a bolt mounting hole through which the bolt 78 is inserted, and a convex portion 76 provided between the pair of mounting plates 80, 80 and provided on the door. The unit 82 and the unit 82 are integrally configured.

  A pair of mounting plates 80, 80 are respectively provided at the vehicle front end and the vehicle rear end of the door catcher 70 and attached to the mounting surfaces 72, 72 of the upper surface 66. The catches 82 are formed in the shape of hooks rising from the two mounting plates 80, 80 in the vertically upward direction and coupled to each other. The catch portion 82 has a bending portion 82a continuous with the mounting plate 80 and a top plate portion 82b continuous with the upper end of the bending portion 82a. The recess 74 of the upper surface 66 is formed below the top plate 82b. The first side panel outer 16 and the center reinforcing member 52 are positioned by the recess 74 formed on the upper surface 66 and then joined together at the recess 74.

  The door striker 68 has a flat mounting plate 84 having a substantially oval shape in a plan view, and a locking portion 86 that protrudes from the mounting plate 84 and is bent in a substantially U shape. An engagement portion (not shown) provided on the door engages with the locking portion 86 to lock the door.

  Returning to FIG. 3, in the front reinforcing member 50, a vertical wall 50a extending along a substantially vertically upward direction and a horizontal wall 50b extending toward the rear of the vehicle substantially orthogonal to the vertical wall 50a are integrated. Are configured. An arc-shaped joining flange portion 88a having a substantially arc shape is provided at an upper portion of a connection portion between the vertical wall portion 50a and the horizontal wall portion 50b. A longitudinal joint flange 88b is provided at the vehicle front end of the vertical wall 50a along the vertical direction. A lateral joint flange 88c is provided at the lower end of the lateral wall 50b along the longitudinal direction of the vehicle. The front reinforcing member 50 is joined to the highly rigid portion 28 via the arc-shaped joining flange portion 88a, the longitudinal joining flange portion 88b, and the transverse joining flange portion 88c.

  Another center reinforcing member 64 is interposed between the side sill outer 32 and the side sill inner 33 of the second side panel outer 18 (see FIG. 4B). The other center reinforcing member 64 has a laterally long rectangular shape in a side view, and extends along the side sill outer 32 along the longitudinal direction of the vehicle. Another center reinforcing member 64 is integrally joined between the side sill outer 32 and the side sill inner 33 through the flange portion.

  The extension length L1 (see FIG. 4A) of the center reinforcing member 52 disposed on the center pillar-less side with respect to the vehicle front-rear direction is the front and rear of the other center reinforcing member 64 disposed on the side having the center pillar 14 The extension length L2 in the direction (see FIG. 4B) is longer (L1> L2). This point will be described in detail later.

  A rear reinforcing member 90 extending from the vehicle rear end of the center reinforcing member 52 to the rear of the vehicle is disposed on the first side panel outer 16 on the side of the center pillar (see FIG. 5). The rear reinforcing member 90 is not disposed on the second side panel outer 18 on the side having the center pillar 14. The rear reinforcing member 90 has a hat-like shape in axial straight section, and is joined to the highly rigid portion 28. The rear reinforcing member 90 is disposed closer to the vehicle rear than the center reinforcing member 52 at the center portion 48.

  The vehicle 10 to which the vehicle body side structure according to the present embodiment is applied is basically configured as described above, and the operation and effect thereof will be described next.

  In the present embodiment, the first side panel outer 16 has a high rigidity portion 28 which is higher in rigidity and strength than the same portion of the second side panel outer 18 from the front corner portion 46 to the center portion 48. The front reinforcing member 50 and the center reinforcing member 52 are respectively joined to the highly rigid portion 28. By connecting the front reinforcing member 50 and the center reinforcing member 52 by the highly rigid portion 28, the rigidity and strength of the portion between the front reinforcing member 50 and the center reinforcing member 52 can be enhanced. As a result, in the present embodiment, the rigidity and strength of the side sill from the front corner portion 46 to the portion (center portion 48) where the original center pillar should be located is improved to suppress the distortion applied to the door opening 30. Can.

  Further, in the present embodiment, the rigidity and strength of the portion between the front reinforcing member 50 and the center reinforcing member 52 is higher due to the high rigidity portion 28 than the side having the center pillar 14. Thereby, in the present embodiment, it is possible to more reliably reduce the difference in rigidity of the vehicle body between the vehicle body left side portion 12a on the center pillarless side and the vehicle body right side portion 12b on the side having the center pillar 14.

  Furthermore, in the present embodiment, another position is provided between the side sill outer 32 and the side sill inner 33 of the second side panel outer 18, which is the side having the center pillar 14, to reinforce the position where the side sill and the center pillar 14 are connected. A center reinforcing member 64 is interposed. By arranging another center reinforcing member 64 also on the second side panel outer 18 side, it is possible to enhance the vehicle body strength against the input load applied at the time of a frontal collision.

  Furthermore, in the present embodiment, the extension length L1 of the center reinforcing member 52 disposed on the center pillar-less side in the vehicle longitudinal direction is the front and rear of the other center reinforcing member 64 disposed on the side having the center pillar 14 It is longer than the extension length L2 in the direction (L1> L2). Thereby, in the present embodiment, it is possible to arrange the center reinforcing member 52 on the center pillar less side closer to the front corner portion 46. As a result, in the present embodiment, it is possible to suppress the difference in rigidity between the left and right of the vehicle body.

  Furthermore, in the present embodiment, the length W1 (see FIG. 7A) of the upper surface 20a of the side sill outer 20 of the first side panel outer 16 in the vehicle width direction is the length of the side sill outer 32 of the second side panel outer 18. The upper surface 32a is longer than the length W2 (see FIG. 7B) in the vehicle width direction (W1> W2). As shown in FIG. 7A, door engagement members such as a door catcher 70 and a door striker 68 are attached to the upper surface 20a of the side sill outer 20. Thereby, in the present embodiment, the mounting rigidity of the door engaging member such as the door catcher 70 and the door striker 68 can be enhanced by using the center reinforcing member 52. In the present embodiment, although both the door catcher 70 and the door striker 68 are attached to the upper surface 66, the case where one of them is attached to the upper surface 66 is also included.

  Furthermore, in the present embodiment, the center reinforcing member 52 has an upper surface 66 whose length in the vehicle width direction is longer than that of the other center reinforcing members 64 (see FIG. 7A). That is, the length of the upper surface 66 of the upper wall 52b of the center reinforcing member 52 in the vehicle width direction (see FIG. 9) is longer than the length of the upper surface of the upper wall 64b of the other reinforcing member 64 in the vehicle width direction. ing. Thus, in the present embodiment, the upper surface 66 of the center reinforcing member 52 on the center pillar less side is longer than the other center reinforcing members 64, so that the difference in rigidity between the left and right of the vehicle body can be reduced.

  Furthermore, in the present embodiment, the upper surface 66 of the center reinforcing member 52 is positioned between the two mounting surfaces 72, 72 spaced apart along the vehicle front-rear direction of the door catcher 70 and the two mounting surfaces 72, 72. And a recess 74 recessed downward. In the present embodiment, by providing the concave portion 74 between the two attachment surfaces 72, 72, it is possible to suppress the amount of upward protrusion of the catch portion 82 (the top plate portion 82b) of the door catcher 70. As a result, in the present embodiment, the amount of upward projection of the door opening 30 (the flange 58a of the door seal member 58) can be reduced, and the getting into and out of the passenger compartment can be improved.

  Furthermore, in the present embodiment, the recess 74 formed on the upper surface 66 functions as a reinforcing bead, whereby the mounting rigidity of the door catcher 70 with respect to the upper surface 66 can be enhanced.

  Furthermore, in the present embodiment, the first side panel outer 16 and the center reinforcing member 52 are respectively joined by the recess 74 formed in the upper surface 66. When the center reinforcing member 52 is joined to the first side panel outer 16, the recess 74 can be used as positioning. As a result, in the present embodiment, it is possible to prevent positional deviation at the time of joining the first side panel outer 16 and the center reinforcing member 52, and it is possible to improve the assemblability of the door catcher 70.

  Furthermore, in the present embodiment, a rear reinforcing member 90 extending from the center portion 48 to the rear of the vehicle is disposed on the first side panel outer 16. In the present embodiment, by providing the rear reinforcing member 90 on the vehicle rear side with respect to the center portion 48, distortion of the door opening 30 on the vehicle rear side is prevented, and the rigidity difference between the left and right of the vehicle body is further reduced. Can.

10 vehicles (one-sided center pillarless vehicles)
14 center pillar 16 first side panel outer 18 second side panel outer 20 side sill outer 20a upper surface 28 high rigidity portion 30 door opening (first door opening)
42 front door opening (second door opening)
44 Rear door opening (second door opening)
46 front corner portion 48 center portion 50 front reinforcing member 52 center reinforcing member 64 other center reinforcing member 68 door striker (door engaging member)
70 Door catcher (door engagement member)
74 concave 76 convex 90 rear reinforcement member

Claims (6)

In the vehicle body side structure of a one-side center pillarless vehicle,
A first side panel outer on a center pillar-less side and a first door opening portion provided on the first side panel outer;
A second side panel outer on the side having a center pillar and a second door opening provided in the second side panel outer;
A front reinforcing member for reinforcing a front corner portion of the first door opening;
A center reinforcing member for reinforcing a center portion corresponding to a position where the side sill of the second side panel outer and the center pillar are connected in the side sill of the first side panel outer,
Equipped with
The first side panel outer has a high rigidity portion which is higher in rigidity than the same portion of the second side panel outer from the front corner portion to the center portion,
The vehicle body side structure of a one-side center pillarless vehicle, wherein the front reinforcing member and the center reinforcing member are respectively joined to the high rigidity portion. In the vehicle body side structure of the one-side center pillarless vehicle according to claim 1,
The second side panel outer has another center reinforcing member that reinforces a position at which the side sill and the center pillar are connected.
An extension length of the other center reinforcement member in the vehicle front direction is shorter than an extension length of the center reinforcement member in the vehicle front direction. In the vehicle body side structure of the one-side center pillarless vehicle according to claim 1,
The length in the vehicle width direction of the upper surface of the side sill of the first side panel outer is longer than the length in the vehicle width direction of the upper surface of the side sill of the second side panel outer,
A door engagement member is attached to the upper surface of the side sill of the first side panel outer, and a vehicle body side structure of a one-side center pillarless vehicle. In the vehicle body side structure of the one-side center pillarless vehicle according to claim 3,
The door engagement member includes a door catcher that accommodates a protrusion provided on the door,
The upper surface has at least two mounting surfaces spaced apart along the vehicle longitudinal direction of the door catcher, and a concave portion recessed between the two mounting surfaces and recessed downward. Vehicle body side structure of the vehicle. In the vehicle-body side structure of the one-side center pillarless vehicle according to claim 4,
A vehicle body side structure of a one-side center pillarless vehicle, wherein the first side panel outer and the center reinforcing member are respectively joined by the recess. The vehicle body side structure of the one-side center pillarless vehicle according to any one of claims 1 to 5, wherein
A vehicle body side structure of a one-side center pillarless vehicle, wherein a rear reinforcing member extending from the center portion to the rear of the vehicle is disposed on the first side panel outer.

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