JP2007203895A - Vehicular side part structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent the deformation of an impact beam supporting bracket, and to efficiently transmit a side impact load acted on an impact beam to a pillar on a vehicle body side. <P>SOLUTION: The impact beam 40 is attached to an impact beam attaching portion 36C of a door inner panel 36 of a rear side door 18 through an extension 42. On the extension 42, a bead 50 is formed straddling over the outside in a vehicular width direction of a vertical wall portion 36E of the door inner panel 36. A door fixing portion 42D of the extension 42 hits on a center pillar 22 with the door panel 36 held between the door fixing portion 42D and the center pillar 22. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a vehicle side part structure of an automobile, and more particularly to a vehicle side part structure having an impact beam for a vehicle side collision on a side door.

2. Description of the Related Art Conventionally, a vehicle side part structure having an impact beam for vehicle side collision on a side door is known (see, for example, Patent Document 1). In this technology, a rising surface is formed between one end and the other end of the support bracket welded to the end of the reinforcing beam member (impact beam), and this rising surface is connected to the lateral wall of the door inner panel. Is welded to the vertical wall.
JP-A-8-192631

  However, in the vehicle side part structure of Patent Document 1, one end portion of the support bracket welded to the lateral wall of the door inner panel and the rising surface of the support bracket are bent and connected at right angles. As a result, when the load acting on the impact beam at the time of a side collision (side collision) of the vehicle is transmitted to the pillar on the vehicle body side via the support bracket, the support bracket is easily deformed at the right-angled bent portion.

  In view of the above facts, an object of the present invention is to provide a vehicle side part structure that can prevent a deformation of an impact beam support bracket and efficiently transmit a side impact load acting on the impact beam to a pillar on the vehicle body side.

  The vehicle side part structure according to the first aspect of the present invention includes a vehicle body side pillar that forms a peripheral edge of a door opening formed on a vehicle body side, a door for opening and closing the door opening, and the door. The impact beam is fixed to the provided impact beam and the impact beam fixing portion formed at one end, and the door is fixed to the vehicle body side pillar with the door being sandwiched at the other end. The impact beam mounting member fixed to the impact beam mounting portion of the door, and the door opening portion closed by the door, provided on the door, from the impact beam side end of the impact beam mounting portion The impact beam fixing portion of the impact beam mounting member and the door fixing member are in a closed state of the vertical wall portion bent inward of the vehicle and the door opening portion by the door. And having an impact beam mounting member breakage preventing means which is formed is disposed across the vehicle outside of the vertical wall portion between the parts, a.

  The impact beam provided on the door that opens and closes the door opening formed on the side of the vehicle body is fixed to the impact beam fixing portion formed on one end of the impact beam mounting member. The door fixing part formed at the other end is fixed to the impact beam mounting part of the door. Further, from the impact beam side end portion of the impact beam mounting portion in the door, a vertical wall portion bent toward the inside of the vehicle is provided in a closed state of the door opening portion by the door. Furthermore, the impact beam mounting member breakage prevention means formed between the impact beam fixing portion of the impact beam mounting member and the door fixing portion is arranged across the vehicle outside of the vertical wall portion in the closed state of the door opening by the door. Thus, the door fixing portion of the impact beam mounting member hits the vehicle body side pillar across the door at the time of a side collision. As a result, the impact beam mounting member breakage preventing means can support a large bending force generated at the outer end in the vehicle width direction of the vertical wall portion of the door in the impact beam mounting member.

  According to a second aspect of the present invention, in the vehicle side part structure according to the first aspect, the door is formed at the impact beam side end of the impact beam mounting portion of the door, and the door opening is closed by the door. The door has an inclined wall portion inclined from the vehicle outer side to the vehicle inner side from the outer peripheral side to the inner peripheral side, and the impact beam mounting member breakage preventing means is provided adjacent to the inclined wall portion. It is characterized by.

  At the impact beam side end of the impact beam mounting portion of the door, an inclined wall portion that is inclined from the vehicle outer side to the vehicle inner side is formed from the outer peripheral side of the door toward the inner peripheral side when the door opening is closed by the door. The impact beam mounting member breakage preventing means is provided adjacent to the inclined wall portion. As a result, the concentration of stress that the impact beam mounting member receives from the vertical wall portion of the door during a side collision is alleviated by the inclined wall portion. For this reason, it is possible to more effectively prevent the impact beam mounting portion from bending from the outer end in the vehicle width direction of the vertical wall portion of the door.

  According to the first aspect of the present invention, the impact beam support bracket can be prevented from being deformed, and the side impact load acting on the impact beam can be efficiently transmitted to the pillar on the vehicle body side.

  The vehicle side part structure according to the second aspect of the present invention can more efficiently transmit the side impact load acting on the impact beam to the pillar on the vehicle body side.

  The vehicle side part structure according to the first embodiment of the present invention will be described with reference to FIGS. In addition, arrow FR, arrow UP, and arrow IN that are appropriately described in each figure indicate a vehicle body front direction, a vehicle body upward direction, and a vehicle width direction inner side direction of the vehicle to which the present invention is applied, respectively.

  As shown in FIG. 8, the front door opening 12 and the rear door opening 14 are provided on the side of the vehicle body 10 of the present embodiment (in FIG. 8, the right side of the vehicle is shown from the vehicle interior side). Is formed. A front side door 16 is attached to the front door opening 12 so as to be able to open and close the front door opening 12, and a rear side door 18 is attached to the rear door opening 14 so as to be able to open and close the rear door opening 14.

  The front door opening 12 is surrounded by a front pillar 23, a roof side rail 24, a center pillar 22, and a rocker (side sill) 26, and the rear door opening 14 is formed with a center pillar 22 and a roof side rail 24. The quarter pillar 28 and the rocker (side sill) 26 are surrounded. Further, hereinafter, in the description using the front-rear direction and the vehicle width direction, the directions in the state where the rear side door 18 closes the rear door opening 14 are shown.

  FIG. 1 shows an enlarged cross-sectional view of the side portion of the vehicle body along the line 1-1 in FIG. As shown in FIG. 1, the center pillar 22 includes a center pillar outer panel 30 that constitutes an outer portion in the vehicle width direction of the center pillar 22, and a center pillar inner panel 32 that constitutes an inner portion in the vehicle width direction of the center pillar 22. ing. A rear wall 30B is formed from the rear end of the center pillar outer panel 30 in the vehicle width direction outside wall 30A toward the inside in the vehicle width direction, and from the inner end in the vehicle width direction of the rear wall 30B toward the rear of the vehicle. A rear flange 30C is formed. A rear flange 32A formed at the rear edge of the center pillar inner panel 32 is joined to the rear flange 30C of the center pillar outer panel 30 by welding or the like.

  The rear side door 18 is a hollow door body in which a door outer panel 34 that constitutes the outside of the rear side door 18 and is exposed to the outside, and a door inner panel 36 that constitutes the inside of the rear side door 18 are coupled to each other at the periphery. It has a structure. Further, a door glass, a door glass lifting device, etc. (not shown) are disposed in the door body, and the outer peripheral edge portion 34A of the door outer panel 34 and the outer peripheral edge portion 36A of the door inner panel 36 are coupled by hemming. Yes.

  The front end portion (outer peripheral edge portion) 18A of the rear side door 18 is formed thinner than the intermediate portion 18B in the front-rear direction (inner portion of the outer peripheral edge portion) in the vehicle width direction. It covers from the outside in the direction. Specifically, a pillar covering portion 36B is formed at the front end portion of the door inner panel 36 so that the front portion of the center pillar outer panel 30 faces the vehicle width direction outer side wall portion 30A when the rear door opening portion 14 is closed. The front end portion of the pillar covering portion 36B is an outer peripheral edge portion 36A. In addition, the vehicle rear side of the pillar covering portion 36B is an impact beam mounting portion 36C that protrudes outward in the vehicle width direction, and the rear end portion of the impact beam mounting portion 36C extends from the vehicle front outer side to the vehicle rear inner side. An inclined wall portion 36 </ b> D is formed to go to. Further, a vertical wall portion 36E that is bent inward in the vehicle width direction (vehicle inner side) is formed from the rear end portion of the inclined wall portion 36D.

  As shown in FIG. 8, in the middle part in the vertical direction on the outer side in the vehicle width direction (the back side of the paper in FIG. 8) of the door inner panel 36 that is inside the door body of the rear side door 18, as shown by the broken line in FIG. A beam 40 is disposed along the longitudinal direction of the vehicle body. An impact beam extension (hereinafter referred to as an extension) 42 as an impact beam mounting member is fixed to the front end portion 40A of the impact beam 40. The front end portion 40A of the impact beam 40 is coupled to an impact beam fixing portion 42A formed at the rear end portion of the extension 42 by welding or the like.

  Although not shown, the rear end portion of the impact beam 40 is also coupled to the rear portion of the door inner panel 36 via an extension.

  FIG. 5 is an enlarged cross-sectional view taken along the line 5-5 in FIG. As shown in FIG. 5, the impact beam 40 is made of, for example, a pipe member having a circular cross section, and the outer peripheral portion is bonded to the door inner panel 34 with an adhesive 41. The cross-sectional shape of the impact beam fixing portion 42A of the extension 42 seen from the vehicle front-rear direction is an arc shape with the opening portion facing outward in the vehicle width direction, and the front end portion 40A of the impact beam 40 is the impact of the extension 42. It is fixed by bonding, welding or the like in a state where it is inserted into the arc-shaped inner peripheral portion of the beam fixing portion 42A (the black portions in FIG. 5 indicate joint points).

  FIG. 4 is a perspective view of the front end portion 40A of the impact beam 40 and the extension 42 according to the present embodiment as viewed from the vehicle front inner side, and the uneven shape of the extension 42 is clarified by a two-dot chain line. As shown in FIG. 4, a portion of the extension 42 on the vehicle front side from the front end portion 42B of the impact beam fixing portion 42A is widened in the vehicle vertical direction toward the vehicle front side, and is viewed from the side of the vehicle. Are substantially trapezoidal, and flanges 42C are formed at both ends in the vertical direction toward the outside in the vehicle width direction. Further, the front end portion of the extension 42 is a door fixing portion 42D, and the door fixing portion 42D has a flat plate shape whose longitudinal direction is along the vehicle vertical direction.

  The arc cross-sectional shape of the front end portion 42B of the impact beam fixing portion 42A of the extension 42 is gradually shallower from the rear of the vehicle toward the front of the vehicle, and flat portions are formed on the upper and lower sides of the arc cross-sectional shape. Has been. Therefore, the drawing process of the material becomes easy and the press formability is improved.

  As shown in FIG. 1, the door fixing portion 42D of the extension 42 is fixed to the outer side in the vehicle width direction of the impact beam mounting portion 36C of the door inner panel 36 by welding or the like. An inclined wall portion 42E is formed between the front end portion 42B of the impact beam fixing portion 42A of the extension 42 and the door fixing portion 42D. The inclined wall portion 42E of the extension 42 is inclined from the vehicle front outer side toward the vehicle rear inner side, and the front portion of the inclined wall portion 42E of the extension 42 is the vehicle width direction outer side portion of the inclined wall portion 36D of the door inner panel 36. It is fixed by welding or the like.

  As shown in FIG. 4, the extension 42 is formed with a bead 50 as a means for preventing the impact beam mounting member from breaking, straddling the front end portion 42B of the impact beam fixing portion 42A and the door fixing portion 42D. It is a bent protrusion formed by processing or the like. Further, as shown in FIG. 1, the bead 50 is formed so as to straddle the vehicle width direction outer side of the vertical wall portion 36E of the door inner panel 36, and the bead 50 is connected to the vertical wall portion 36E of the door inner panel 36 and the vehicle side portion. It overlaps in vision.

  FIG. 6 shows an enlarged cross-sectional view taken along the line 6-6 in FIG. As shown in FIG. 6, the bead 50 is a concave bead that is recessed in a circular arc shape toward the outer side in the vehicle width direction, and the bead 50 is at the center in the vertical direction of the extension 42, and the longitudinal direction is the axis of the impact beam 40. It is formed along the vehicle longitudinal direction, which is the direction of 40B (see FIG. 4).

  Therefore, as shown by a two-dot chain line in FIG. 1, the rear side door 18 moves inward in the vehicle width direction at the time of a vehicle side collision, and the door fixing portion 42D of the extension 42 sandwiches the impact beam mounting portion 36C of the door inner panel 36. When the center pillar outer panel 30 hits the vehicle width direction outer side wall portion 30A, the extension 42 starts from the vehicle width direction outer side end 36F of the vertical wall portion 36E of the door inner panel 36, and the vehicle width direction inner side direction (arrow in FIG. 1). A direction) is about to bend. At this time, the bead 50 supports a large bending force generated at the outer end in the vehicle width direction of the vertical wall portion 36E of the door inner panel 36 in the extension 42, thereby preventing the bending. As a result, the side impact load F1 acting on the rear side door 18 is efficiently transmitted from the impact beam 40 to the vertical wall portion 36E of the door inner panel 36 via the bead 50 of the extension 42. Further, as indicated by a two-dot chain line in FIG. 1, the side inner load 36 abuts against the rear flange 30C of the center pillar outer panel 30 so that the side impact load F1 acting on the impact beam 40 is efficiently transmitted to the center pillar 22. It can be done.

  FIG. 7 shows a perspective view of the rear side door 18 in the present embodiment as viewed from the vehicle front inner side. As shown in FIG. 7, a door hinge mounting portion 36G is formed at a portion of the vertical wall portion 36E on the inner side in the vehicle width direction of the upper portion of the inclined wall portion 36D in the door inner panel 36, and the door hinge mounting portion 36G is It projects from the wall 36E toward the vehicle front side. In addition, a through-hole drilling portion 36H in which a through-hole 55 for passing a wire harness is formed is formed in a portion of the vertical wall portion 36E on the inner side in the vehicle width direction below the inclined wall portion 36D in the door inner panel 36. The through-hole drilling portion 36H is formed to protrude toward the vehicle front side with respect to the vertical wall portion 36E.

  FIG. 2 is an enlarged cross-sectional view taken along the line 2-2 in FIG. As shown in FIG. 2, one arm 56A of the door hinge 56 (not shown in FIG. 7) is fixed to the front side surface of the door hinge mounting portion 36G of the door inner panel 36 by a fastening member such as a bolt (not shown). ing. The other arm 56 </ b> B of the door hinge 56 is fixed to the outer surface of the vehicle pillar-side outer wall 30 </ b> A of the center pillar outer panel 30 by a fastening member such as a bolt (not shown).

  FIG. 3 is an enlarged cross-sectional view taken along the line 3-3 in FIG. As shown in FIG. 3, a bush 59 (not shown in FIG. 7) that protects the wire harness 57 is fitted in the through hole 55 of the through hole drilling portion 36 </ b> H of the door inner panel 36. The extension 42 and the bush 59 do not interfere with each other.

  As shown in FIG. 7, a convex bead 57 convex toward the rear of the vehicle is formed between the door hinge mounting portion 36G and the through hole drilling portion 36H of the vertical wall portion 36E of the door inner panel 36. The convex beads 57 are arranged along the vehicle width direction in the longitudinal direction. Further, an upper inclined surface 36J connected to the door hinge mounting portion 36G is formed on the upper portion of the convex bead 57, and a lower inclined surface 36K connected to the through hole drilling portion 36H is formed on the lower portion of the convex bead 57. Yes. Further, the upper inclined surface 36J and the lower inclined surface 36K are connected to each other by a connecting convex portion 61 that protrudes forward of the vehicle at the end on the inclined wall portion 36D side, and the connecting convex portion 61 has its longitudinal direction in the vehicle vertical direction. Are arranged along. The connecting convex portion 61 is connected to the inclined wall portion 36D and extends in the vehicle width direction, and the connecting convex portion 61 is inclined from the inner end in the vehicle width direction of the vertical wall portion 36L toward the vehicle rear inner side, and is connected to the vertical wall portion 36E. And an inclined surface 36M.

  As shown in FIGS. 1 to 3, a weather strip 58 is provided on the inner side in the vehicle width direction of the connecting convex portion 61, the door hinge mounting portion 36G, and the through hole drilling portion 36H in the vertical wall portion 36E of the door inner panel 36. It is attached (not shown in FIG. 7), and a weather strip 58 seals the gap between the vertical wall portion 36E of the door inner panel 36 and the rear wall portion 30B of the center pillar outer panel 30.

  Therefore, as shown in FIG. 2, when a load F2 is applied from the front side of the vehicle at the time of a frontal collision of the vehicle, the load F2 is transmitted in the order of the center pillar outer panel 30, the door hinge 56, the extension 42, and the impact beam 40. It has become so. At this time, the deformation of the extension 42 is prevented by the bead 50, and the load F2 can be transmitted efficiently.

  When the occupant closes the rear side door 18, the kinetic energy of the impact beam 40 bonded to the door outer panel 34 is efficiently transmitted to the vertical wall portion 36E of the door inner panel 36 via the bead 50 of the extension 42. It has come to be. As a result, when the occupant closes the rear side door 18, the section of the weather strip 58 is efficiently deformed by the kinetic energy of the impact beam 40, and the rear wall panel 36E of the door inner panel 36 and the center pillar outer panel 30 are The sealing performance of the gap with the wall portion 30B is improved.

  Further, since the through hole 55 is formed in the vicinity of the lower portion of the inclined wall portion 36D of the door inner panel 36 to which the bead 50 of the extension 42 is coupled, the rigidity reduction of the door inner panel 36 due to the through hole 55 is suppressed by the bead 50. It has come to be.

  Further, as shown in FIG. 7, the inclined wall portion 36D of the door inner panel 36 is connected to the door hinge attachment portion 36G. Therefore, a side impact load acting on the rear side door 18 at the time of a vehicle side impact is transmitted from the impact beam 40 to the bead 50 of the extension 42, and the bead 50 has an inclined wall portion 36D, a door hinge mounting portion 36G, and a door hinge. Through 56, the center pillar 22 is efficiently transmitted.

  Further, the inclined wall portion 36D of the door inner panel 36 is connected to the door hinge mounting portion 36G, so that the rigidity of the door hinge mounting portion 36G is improved. As a result, the swing of the rear side door 18 at the time of opening and closing is suppressed, and the door operability at the time of opening and closing the door is improved.

  A convex bead 57 is formed between the door hinge mounting portion 36G and the through hole drilling portion 36H of the vertical wall portion 36E of the door inner panel 36, and an upper inclined surface 36J is formed above the convex bead 57. A lower inclined surface 36 </ b> K is formed below the convex bead 57. Further, the upper inclined surface 36J and the lower inclined surface 36K are connected to each other by the connecting convex portion 61. Accordingly, a side impact load acting on the rear side door 18 at the time of a vehicle side collision can be efficiently transmitted to the rear flange 30 of the center pillar outer panel 30 via the convex bead 57. Further, since the deformation of the through hole drilling portion 36H can be suppressed by the connecting convex portion 61, the side impact load is efficiently transmitted to the center pillar 22 through the through hole drilling portion 36H. .

  Next, the operation of this embodiment will be described.

  In the present embodiment configured as described above, the rear door opening 14 of the vehicle body 10 is opened and closed by rotating the rear side door 18 around the hinge axis of the door hinge. As shown in FIG. 1, in the closed state of the rear door opening 14, the rear side door 18 has a pillar covering portion 36 </ b> B of the door inner panel 36 facing the vehicle width direction outer side wall portion 30 </ b> A of the center pillar outer panel 30. The vertical wall portion 36E faces the rear wall portion 30B of the center pillar outer panel 30. In addition, a bead 50 is formed between the impact beam fixing portion 42A and the door fixing portion 42D of the extension 42 so as to straddle the vehicle width direction outer side of the vertical wall portion 36E of the door inner panel 36. The front end portion of the door fixing portion 42 </ b> D of 42 contacts the center pillar 22 with the door inner panel 36 interposed therebetween.

  Therefore, the extension 42 tends to bend in the vehicle width direction inner side direction (arrow A direction in FIG. 1) starting from the vehicle width direction outer side end 36F of the vertical wall portion 36E of the door inner panel 36 at the time of a vehicle side collision. The bead 50 can support a large bending force generated at the outer end in the vehicle width direction of the vertical wall portion 36E of the door inner panel 36 in the extension 42, and can prevent bending. As a result, the side impact load F1 acting on the rear side door 18 is efficiently transmitted from the impact beam 40 to the vertical wall portion 36E of the door inner panel 36 via the bead 50 of the extension 42. Further, as shown by a two-dot chain line in FIG. 1, the side inner load 36 abuts against the rear flange 30C of the center pillar outer panel 30 so that the side collision load F1 acting on the impact beam 40 is more efficiently applied to the center pillar 22. Can communicate.

  On the other hand, as shown in FIG. 2, when a load F2 is applied from the front side of the vehicle at the time of a frontal collision of the vehicle, the load F2 is transmitted in the order of the center pillar outer panel 30, the door hinge 56, the extension 42, and the impact beam 40. The At this time, the deformation of the extension 42 is prevented by the bead 50, and the load F2 can be transmitted to the impact beam 40 efficiently.

  Further, when the occupant closes the rear side door 18, the kinetic energy of the impact beam 40 bonded to the door outer panel 34 with the adhesive 41 passes through the bead 50 of the extension 42 and the vertical wall portion 36 </ b> E of the door inner panel 36. Is transmitted efficiently. As a result, when the occupant closes the rear side door 18, the section of the weather strip 58 is efficiently deformed by the kinetic energy of the impact beam 40, and the vertical wall portion 36 </ b> E of the door inner panel 36 and the rear wall of the center pillar outer panel 30. The sealing performance of the gap with the portion 30B is improved.

  In addition, since the through hole 55 is formed near the lower portion of the inclined wall portion 36 </ b> D in the door inner panel 36 to which the bead 50 is coupled, the bead 50 suppresses the rigidity of the door inner panel 36 from being lowered by the through hole 55.

  Further, as shown in FIG. 7, the inclined wall portion 36D of the door inner panel 36 is connected to the door hinge attachment portion 36G. Therefore, a side impact load acting on the rear side door 18 at the time of a vehicle side impact is transmitted from the impact beam 40 to the bead 50 of the extension 42, and the bead 50 has an inclined wall portion 36D, a door hinge mounting portion 36G, and a door hinge. It is efficiently transmitted to the center pillar 22 via 56.

  Further, the inclined wall portion 36D of the door inner panel 36 is connected to the door hinge mounting portion 36G, and the rigidity of the door hinge mounting portion 36G is improved. As a result, the swing of the rear side door 18 when opening and closing is suppressed, and the door operability when opening and closing the door is improved.

  Further, a convex bead 57 is formed between the door hinge mounting portion 36G and the through hole drilling portion 36H of the vertical wall portion 36E of the door inner panel 36, and an upper inclined surface 36J is formed above the convex bead 57. A lower inclined surface 36 </ b> K is formed below the convex bead 57. Further, the upper inclined surface 36J and the lower inclined surface 36K are connected to each other by the connecting convex portion 61. Accordingly, the strength of the portion of the inner panel 36 between the door hinge mounting portion 36G and the through-hole drilling portion 36H of the vertical wall portion 36E is increased, so that the side panel load acting on the rear side door 18 during the vehicle side collision is reduced. 36 can be efficiently transmitted to the center pillar 22 through a portion between the door hinge mounting portion 36G of the vertical wall portion 36E and the through hole drilling portion 36H. Further, since the deformation of the through hole drilling portion 36H can be suppressed by the connecting convex portion 61, the side impact load is efficiently transmitted to the center pillar 22 through the through hole drilling portion 36H.

  Further, in the present embodiment, an inclined wall portion 36 </ b> D is formed at the impact beam side end portion (rear end portion) of the impact beam mounting portion 36 </ b> C in the door inner panel 36 from the vehicle front outer side toward the vehicle rear inner side. As a result, the concentration of stress that the extension 42 receives from the vehicle width direction outer side end 36F of the vertical wall portion 36E of the door inner panel 36 at the time of a side collision is alleviated by the inclined wall portion 36D. For this reason, it is possible to more effectively prevent the extension 42 from bending from the vehicle width direction outer side end 36F of the vertical wall portion 36E of the door inner panel 36.

  Next, the vehicle side part structure according to the second embodiment of the present invention will be described with reference to FIGS.

  In addition, about the same member as 1st Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  FIG. 9 is a perspective view corresponding to FIG. 4, and the concavo-convex shape of the extension 42 is clarified by a two-dot chain line. FIG. 10 is a cross-sectional view corresponding to FIG. As shown in FIGS. 9 and 10, in this embodiment, the impact beam fixing portion 42A of the extension 42 (including the front end portion 42B of the impact beam fixing portion 42A) is widened in the vehicle vertical direction, and is centered in the vertical direction. The part has an arcuate part with the opening directed outward in the vehicle width direction. Further, the front end portion 40A of the impact beam 40 is fixed by bonding, welding or the like in a state where it is inserted into the arc-shaped inner peripheral portion of the impact beam fixing portion 42A of the extension 42 (the black painted portion in FIG. 10 indicates the junction point). ). Further, a flange 42F is formed on the upper end edge and the lower end edge of the impact beam fixing portion 42A of the extension 42 toward the outer side in the vehicle width direction.

  Accordingly, in this embodiment, the same effect as the first embodiment can be obtained, and the impact beam fixing portion 42A of the extension 42 is expanded in the vehicle vertical direction and the flange 42F is formed, thereby further increasing the strength of the extension 42. Can be improved.

  Next, the vehicle side part structure concerning 3rd Embodiment of this invention is demonstrated based on FIG.

  In addition, about the same member as 1st Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  FIG. 11 is a perspective view corresponding to FIG. 4, and the concavo-convex shape of the extension 42 is clarified by a two-dot chain line. As shown in FIG. 11, in this embodiment, a convex bead 60 that protrudes outward in the vehicle width direction on the vehicle front side of the vehicle 50 in the vehicle vertical direction center portion of the door fixing portion 42D of the extension 42 extends in the longitudinal direction of the vehicle. It is formed along the front-rear direction. The convex bead 60 is trapezoidal when viewed from the vehicle front-rear direction, and four ridge lines 62 extending in the vehicle front-rear direction are formed on the door fixing portion 42D by the convex bead 60.

  Therefore, in this embodiment, the same effects as in the first embodiment can be obtained, and the convex bead 60 is formed in the door fixing portion 42D of the extension 42 along the vehicle front-rear direction, thereby further increasing the strength of the extension 42. Can be improved.

  Instead of the convex bead 60 that protrudes outward in the vehicle width direction, a convex bead that protrudes inward in the vehicle width direction may be formed in the door fixing portion 42D of the extension 42.

  Next, the vehicle side part structure concerning 4th Embodiment of this invention is demonstrated based on FIG.

  In addition, about the same member as 1st Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  FIG. 12 is a perspective view corresponding to FIG. 4, and the concavo-convex shape of the extension 42 is clarified by a two-dot chain line. As shown in FIG. 12, in this embodiment, the bead 50 is formed in the entire area of the inclined wall portion 42 </ b> E of the extension 42. That is, the bead 50 extends to the upper end and the lower end of the inclined wall portion 42E.

  Therefore, in the present embodiment, the same effect as the first embodiment can be obtained, and the strength of the extension 42 can be further improved by extending the bead 50 to the upper end and the lower end of the inclined wall portion 42E.

  Next, the vehicle side part structure concerning 5th Embodiment of this invention is demonstrated based on FIG.

  In addition, about the same member as 1st Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  FIG. 13 is a side view of the front end portion 40A of the impact beam 40 and the extension 42 as viewed from the inside in the vehicle width direction in the present embodiment, and the uneven shape of the extension 42 is clarified by a two-dot chain line. As shown in FIG. 13, in the present embodiment, the beads 50 formed on the extension 42 are extended to the vicinity of the upper end and the vicinity of the lower end of the inclined wall portion 42 </ b> E, and both the upper and lower end portions and the upper and lower center portion of the bead 50. The extension portions 50A are formed so as to protrude from the front of the vehicle. Further, the front end 50B of each extension portion 50A is separated from the front end 42G of the door fixing portion 42D of the extension 42 by a predetermined distance L1.

  Therefore, also in this embodiment, the same effect as the first embodiment can be obtained. In addition, the bead 50 is extended to the vicinity of the upper end and the lower end of the inclined wall portion 42E, and the extension portions 50A are respectively formed to project toward the vehicle front from both the upper and lower end portions and the upper and lower center portion of the bead 50. The strength of the extension 42 can be further improved.

  Next, the vehicle side part structure concerning 6th Embodiment of this invention is demonstrated based on FIG.

  In addition, about the same member as 1st Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  FIG. 14 is a perspective view corresponding to FIG. As shown in FIG. 14, in the present embodiment, the outer end in the vehicle width direction of the upper inclined wall portion 36N of the door hinge mounting portion 36G formed on the door inner panel 36 is connected to the upper end portion of the inclined wall portion 36D. An extended inclined wall portion 36P is formed from the rear end portion of the upper wall portion 36N toward the inside in the vehicle width direction. For this reason, an inclined wall portion 36D, an upper inclined wall portion 36N, and an extended inclined wall portion 36P are formed continuously in the vehicle width direction on the upper side of the door hinge mounting portion 36G.

  Therefore, also in this embodiment, the same effect as the first embodiment can be obtained. In addition, since the inclined wall portion 36D, the upper inclined wall portion 36N, and the extended inclined wall portion 36P are continuously formed in the vehicle width direction above the door hinge mounting portion 36G of the door inner panel 36, the strength of the door inner panel 36 is increased. This can be further improved.

  Next, the vehicle side part structure concerning 7th Embodiment of this invention is demonstrated based on FIG.15 and FIG.16.

  In addition, about the same member as 1st Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  15 shows a cross-sectional view corresponding to FIG. 1, and FIG. 16 shows a cross-sectional view corresponding to FIG.

  As shown in FIG. 15, in the present embodiment, the connecting convex portion 61 in the first embodiment is not formed on the inclined wall portion 36 </ b> D of the door inner panel 36. Further, as shown in FIG. 16, the bead 50 is a concave bead that is recessed in a circular arc shape inward in the vehicle width direction, and the upper edge of the upper and lower flanges 42C are separated from each other in the vehicle upper direction. Or the bending part 42H is formed toward the vehicle direction, respectively.

  Therefore, also in this embodiment, the same effect as the first embodiment can be obtained. Further, the strength of the extension 42 can be further improved by the bent portion 42H formed at the outer edges in the vehicle width direction of the upper and lower flanges 42C.

  Next, the vehicle side part structure according to the eighth embodiment of the invention will be described with reference to FIG.

  In addition, about the same member as 1st Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  FIG. 17 is a perspective view corresponding to FIG. As shown in FIG. 17, in this embodiment, the widths W1 of the flanges 42C formed at the upper and lower ends of the inclined wall portion 42E of the extension 42 are widened, and the entire area of the inclined wall portion 42E covers the opening. The bead 50 has a U-shaped cross section directed outward in the width direction.

  Therefore, in this embodiment, the same effect as that of the first embodiment can be obtained, and the width W1 of the flange 42C constituting the upper wall portion and the lower wall portion of the bead 50 is increased, so that the bead 50 The section modulus and the secondary section moment increase, and the strength of the extension 42 can be further improved (the extension 42 is more difficult to break).

  Next, the vehicle side part structure concerning 9th Embodiment of this invention is demonstrated based on FIG.18 and FIG.19.

  In addition, about the same member as 1st Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  18 shows a cross-sectional view corresponding to FIG. 1, and FIG. 19 shows a perspective view of the extension 70. As shown in FIG.

  As shown in FIG. 19, in the present embodiment, the cross-sectional shape of the impact beam fixing portion 70A of the extension 70 to which the front end portion 40A of the impact beam 40 is coupled viewed from the vehicle front-rear direction is the opening portion outward in the vehicle width direction. The hat has a cross-sectional shape. That is, an upper wall portion 70C is formed from the upper end of the vertical wall portion 70B toward the outer side in the vehicle width direction, and a flange 70D is formed from the outer end in the vehicle width direction of the upper wall portion 70C toward the upper side of the vehicle. Yes. Further, a lower wall portion 70E is formed from the lower end of the vertical wall portion 70B toward the outside in the vehicle width direction, and a flange 70F is formed from the outer end in the vehicle width direction of the lower wall portion 70E toward the vehicle lower side. Yes. Note that the front end portion 40A of the impact beam 40 is joined to the base portions of the flange 70D and the flange 70F by welding or the like (the black portions in FIG. 19 indicate joint points).

  A front wall portion 70G is formed from the front end of the vertical wall portion 70B of the extension 70 toward the outer side in the vehicle width direction, and a door fixing portion 70H is formed from the outer end in the vehicle width direction of the front wall portion 70G toward the front of the vehicle. Is formed. Further, a bent portion 70J is formed from the front end of the upper wall portion 70C toward the lower side of the vehicle, and a bent portion 70K is formed from the front end of the lower wall portion 70E toward the upper side of the vehicle. These bent portions 70J and 70K are joined to the vehicle rear side surface of the front wall portion 70G by welding or the like. The door fixing portion 70H of the extension 70 has a flat plate shape whose longitudinal direction is along the vehicle vertical direction.

  As shown in FIG. 18, the door fixing portion 70H of the extension 70 is fixed to the outer side in the vehicle width direction of the impact beam mounting portion 36C of the door inner panel 36 by welding or the like. Further, the front part 70L of the impact beam fixing part 70A of the extension 70 serves as a means for preventing the impact beam attachment member from breaking, and is formed across the vehicle width direction outer side end 36F of the vertical wall part 36E of the door inner panel 36. Yes. That is, the front portion 70L of the impact beam fixing portion 70A of the extension 70 overlaps with the vertical wall portion 36E of the door inner panel 36 in the vehicle side view. The front end portion 40A of the impact beam 40 is close to the front wall portion 70G of the extension 70, and the front end portion 40A of the impact beam 40 straddles the outer end 36F in the vehicle width direction of the vertical wall portion 36E of the door inner panel 36. Is formed.

  Therefore, also in this embodiment, the same effect as the first embodiment can be obtained. Further, in the present embodiment, the width W2 between the upper wall portion 70C and the lower wall portion 70E in the front portion 70L of the impact beam fixing portion 70A of the extension 70 serving as the impact beam mounting member breakage preventing means is increased. . As a result, the section modulus and the secondary section moment of the front portion 70L of the impact beam fixing portion 70A in the extension 70 are increased, and the strength of the extension 70 can be further improved (the extension 70 is more difficult to break).

  Further, in the present embodiment, the front end portion 40A of the impact beam 40 can be brought close to the front wall portion 70G of the extension 70, and the front end portion 40A of the impact beam 40 is located outside the vertical wall portion 36E of the door inner panel 36 in the vehicle width direction. It can be arranged across the end 36F. For this reason, the extension 70 can be further reinforced by the front end portion 40 </ b> A of the impact beam 40.

  In the above, the present invention has been described in detail for specific embodiments. However, the present invention is not limited to the above-described embodiments, and various other embodiments are possible within the scope of the present invention. It will be apparent to those skilled in the art. For example, in each of the above embodiments, an example in which the present invention is applied to the rear side door 18 for opening and closing the rear door opening 14 for the rear seat occupant has been shown, but the present invention is not limited to this, for example, The present invention may be applied to the front side door 16, the rear door, the back door, and the like.

  Further, the impact beam mounting member breakage preventing means in the present invention is not limited to the configuration exemplified in each of the above embodiments, and the embodiments can be combined and implemented.

  Further, the impact beam mounting member breakage preventing means is not limited to the bead 50 (bent protrusion), and a thick member or a reinforcing member as a separate member may be arranged.

It is an expanded sectional view including a door along the 1-1 line section of Drawing 7. FIG. 8 is an enlarged cross-sectional view including a door along the line 2-2 in FIG. 7. It is an expanded sectional view including a door along the 3-3 line section of FIG. It is the perspective view seen from the vehicle front inner side which shows the impact beam and extension of the vehicle side part structure which concern on the 1st Embodiment of this invention. FIG. 5 is an enlarged cross-sectional view taken along a line 5-5 in FIG. 1. FIG. 6 is an enlarged cross-sectional view taken along the line 6-6 in FIG. 1. It is the perspective view seen from the vehicle front inner side which shows the rear side door of the vehicle side part structure which concerns on the 1st Embodiment of this invention. It is the side view seen from the vehicle interior side which shows the vehicle body right side part of the vehicle of the vehicle side part structure according to the first embodiment of the present invention. It is a perspective view corresponding to FIG. 4 of the vehicle side part structure which concerns on the 2nd Embodiment of this invention. It is sectional drawing corresponding to FIG. 5 of the vehicle side part structure which concerns on the 2nd Embodiment of this invention. It is a perspective view corresponding to FIG. 4 of the vehicle side part structure which concerns on the 3rd Embodiment of this invention. It is a perspective view corresponding to FIG. 4 of the vehicle side part structure which concerns on the 4th Embodiment of this invention. It is a side view in the vehicle width direction inner side which shows the impact beam and extension of the vehicle side part structure which concern on the 5th Embodiment of this invention. It is a perspective view corresponding to FIG. 7 of the vehicle side part structure which concerns on the 6th Embodiment of this invention. It is sectional drawing corresponding to FIG. 1 of the vehicle side part structure which concerns on the 7th Embodiment of this invention. It is an expanded sectional view along the 16-16 line section of FIG. It is a perspective view corresponding to FIG. 4 of the vehicle side part structure which concerns on the 8th Embodiment of this invention. It is sectional drawing corresponding to FIG. 1 of the vehicle side part structure which concerns on the 9th Embodiment of this invention. It is the perspective view seen from the vehicle width direction outer side front which shows the extension of the vehicle side part structure which concerns on the 9th Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 12 Front door opening part 14 Rear door opening part 16 Front side door 18 Rear side door 22 Center pillar 23 Front pillar 28 Quarter pillar 30 Center pillar outer panel 30A Outer side wall part of center pillar outer panel in the vehicle width direction 30B Rear wall part of center pillar outer panel 34 Door Outer panel 36 Door inner panel 36C Impact beam mounting portion 36D of door inner panel Inclined wall portion of door inner panel 36E Vertical wall portion of door inner panel 40 Impact beam 42 Extension (impact beam mounting member)
42A Extension impact beam fixing part 42B Extension impact beam fixing part front end part 42C Extension flange 42D Extension door fixing part 42E Extension inclined wall part 50 Bead (impact beam mounting member breakage prevention means)
70 Extension (impact beam mounting member)
70A Extension impact beam fixing part 70H Extension door fixing part 70L Front part of impact beam fixing part (impact beam mounting member breakage prevention means)

Claims (2)

A vehicle body side pillar that forms a peripheral portion of a door opening formed in the vehicle body side portion; and
A door for opening and closing the door opening;
An impact beam provided on the door;
The impact beam is fixed to an impact beam fixing portion formed at one end portion, and a door fixing portion formed at the other end portion that contacts the vehicle body side pillar across the door at the time of a side collision is an impact beam of the door An impact beam mounting member fixed to the mounting portion;
In the closed state of the door opening portion by the door, a vertical wall portion that is provided on the door and is bent inward from the impact beam side end portion of the impact beam mounting portion;
Impact beam mounting formed between the impact beam fixing portion and the door fixing portion of the impact beam mounting member and straddling the vehicle exterior side of the vertical wall portion when the door opening is closed by the door Member breakage prevention means,
The vehicle side part structure characterized by having.   Formed at the impact beam side end portion of the impact beam mounting portion of the door, and when the door opening is closed by the door, from the outer periphery side to the inner periphery side of the door, from the vehicle outer side to the vehicle inner side The vehicle side part structure according to claim 1, further comprising an inclined wall portion that is inclined, and the impact beam mounting member breakage preventing means is provided adjacent to the inclined wall portion.

Images