JP2007253637A - Vehicle side structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To suppress the deformation of a door, and to efficiently transmit a side collision load acted on the door to a vehicle body side. <P>SOLUTION: In the vehicle side structure, a flange 42C as an impact beam attaching member breakage preventive means is formed toward the outside in a vehicular width direction at a rear end portion of a door fixing portion 42B of an extension 42 fixing an impact beam 40 to a door inner panel 36. The flange 42C of a door fixing portion 42B of the extension 42 is disposed so as to make a longitudinal direction be along a vehicular vertical direction in the whole area of a rear end portion of the extension 42. The flange 42C intersects with the vehicular vertical direction which is the longitudinal direction of the impact beam 40. <P>COPYRIGHT: (C)2008,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 that suppresses entry of a side door into a vehicle compartment at the time of a vehicle side collision.

2. Description of the Related Art Conventionally, a vehicle side part structure that suppresses entry of a side door into a vehicle compartment at the time of a vehicle side collision (side collision) is known (see, for example, Patent Document 1). In this technique, an impact beam for suppressing deformation of the door inner panel at the time of a vehicle-side collision is provided in the door. Moreover, the extension which is provided in the longitudinal direction both ends of the impact beam and fixes the impact beam to the door inner panel is formed with uneven portions along the longitudinal direction of the impact beam.
JP-A-7-144535

  An object of this invention is to provide the vehicle side part structure which can suppress the deformation | transformation of a door and can transmit the side impact load which acts on a door to the vehicle body side efficiently.

  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, and the door fixing portion that is in contact with the vehicle body side pillar across the inner panel of the door at the time of a vehicle side collision is fixed to the inner panel of the door An impact beam mounting member, and an impact beam mounting member breakage prevention means continuously formed along a direction intersecting the longitudinal direction of the impact beam at the door fixing portion of the impact beam mounting member. .

  At the time of a vehicle side collision, the door that closes the door opening formed in the vehicle body side portion is deformed in the vehicle width inner side direction. At this time, the impact beam mounting member break prevention means continuously formed on the door fixing portion of the impact beam mounting member along the direction intersecting with the longitudinal direction of the impact beam is arranged so that the door fixing portion of the impact beam mounting member is in the vehicle width inside direction. Can be prevented from bending. As a result, deformation of the inner panel of the door to which the door fixing portion of the impact beam mounting member is fixed can be suppressed. For this reason, the inner panel of the door reliably hits the vehicle body side pillar that forms the peripheral edge portion of the door opening formed on the vehicle body side portion, and the side impact load acting on the door is efficiently transmitted to the vehicle body side.

  According to a second aspect of the present invention, in the vehicle side portion structure according to the first aspect, the impact beam mounting member has an impact beam fixing portion formed at one end portion and a door fixing portion formed at the other end portion. The impact beam mounting member breakage preventing means is formed at an end of the impact beam mounting member opposite to the impact beam in the door fixing portion.

  At the time of a vehicle side collision, the door that closes the door opening formed in the vehicle body side portion is deformed in the vehicle width inner side direction. At this time, the impact beam mounting member breakage preventing means continuously formed along the direction intersecting the longitudinal direction of the impact beam at the end opposite to the impact beam in the door fixing portion of the impact beam mounting member is the impact beam mounting member. This prevents the door fixing part of the vehicle from being bent toward the inside of the vehicle width. As a result, deformation of the inner panel of the door to which the door fixing portion of the impact beam mounting member is fixed is suppressed. For this reason, the inner panel of the door reliably hits the vehicle body side pillar that forms the peripheral edge portion of the door opening formed on the vehicle body side portion, and the side impact load acting on the door is efficiently transmitted to the vehicle body side.

  According to a third aspect of the present invention, in the vehicle side part structure according to the second aspect, the impact beam mounting member breakage preventing means is a flange formed by bending an end of the impact beam mounting member.

  By forming the impact beam mounting member breakage preventing means as a flange having a bent end portion of the impact beam mounting member, the impact beam mounting member breakage preventing means can be easily formed on the impact beam mounting member.

  According to a fourth aspect of the present invention, in the vehicle side part structure according to the third aspect of the present invention, the flange is provided at a portion of the door inner panel on the inner side in the vehicle width direction of the flange and protrudes toward the vehicle body side pillar. It has a vehicle side collision engagement means.

  On the vehicle body side of the door inner panel, which is on the inner side in the vehicle width direction of the flange formed continuously along the direction intersecting the longitudinal direction of the impact beam at the end opposite to the impact beam in the door fixing portion of the impact beam mounting member The vehicle-side collision engagement means is formed to project toward the pillar. When the vehicle-side collision occurs, the deformation of the door is suppressed by engaging the vehicle-side collision engagement means with the vehicle body-side pillar.

  According to a fifth aspect of the present invention, in the vehicle side portion structure according to the fourth aspect, the vehicle side collision engagement means has a concave portion recessed toward the vehicle body side pillar, and the inside of the concave portion. The said flange is inserted in, It is characterized by the above-mentioned.

  The vehicle side impact engagement means has a recess recessed toward the vehicle body side pillar, and a flange is inserted inside the recess. When the vehicle impact occurs, the flange of the impact beam mounting member The deformation of the door is suppressed by hitting the inside of the recess of the hour engagement means.

  According to a sixth aspect of the present invention, in the vehicle side portion structure according to the fourth aspect, the door fixing portion of the impact beam mounting member is formed so as to protrude outward in the vehicle width direction, and the longitudinal direction is a length in the longitudinal direction of the impact beam. A scale convex part is provided, and the door fixing part and the door inner panel are joined to each other above and below the long convex part.

  A long convex portion with the longitudinal direction of the impact beam extending in the longitudinal direction of the impact beam on the door fixing portion of the impact beam mounting member is formed to protrude outward in the vehicle width direction, and the door fixing portion and the door inner panel are formed above and below the long convex portion. By joining, the bending rigidity along the longitudinal direction of the impact beam of the door fixing portion in the impact beam mounting member is improved.

  The vehicle side part structure according to the first aspect of the present invention can suppress the deformation of the door and can efficiently transmit the side impact load acting on the door to the vehicle body side.

  The vehicle side part structure according to the second aspect of the present invention can suppress the deformation of the door and can efficiently transmit the side impact load acting on the door to the vehicle body side.

  The vehicle side part structure according to the third aspect of the present invention can easily form the impact beam mounting member breakage preventing means on the impact beam mounting member.

  The vehicle side part structure according to the fourth aspect of the present invention can further suppress the deformation of the door and can more efficiently transmit the side impact load acting on the door to the vehicle body side.

  The vehicle side part structure according to the fifth aspect of the present invention can further suppress the deformation of the door and can more efficiently transmit the side impact load acting on the door to the vehicle body side.

  According to the sixth aspect of the present invention, the vehicle side portion structure of the present invention can suppress the deformation of the joint portion between the impact beam mounting member and the door inner panel, and can efficiently transmit the side impact load acting on the door to 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. 4, a front door opening 12 and a rear door opening 14 are provided on the side of the vehicle body 10 of the present embodiment (in FIG. 4, 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. 2 shows an enlarged cross-sectional view of the side portion of the vehicle body along the line 2-2 in FIG. As shown in FIG. 2, the quarter pillar 28 includes a quarter pillar outer panel 30 that constitutes an outer portion of the quarter pillar 28 in the vehicle width direction. A stepped portion 30 </ b> B that is recessed toward the vehicle width inner side is formed at the front portion of the vehicle width direction outer wall portion 30 </ b> A of the quarter pillar outer panel 30. Further, a front wall portion 30C is formed from the front end of the step portion 30B toward the vehicle width inside direction, and a vehicle width direction inner side wall portion from the vehicle width direction inner end 30D of the front wall portion 30C toward the vehicle front side. 30E is formed.

  The rear side door 18 is a hollow door body in which a door inner panel 36 that forms the inside of the rear side door 18 and a door outer panel 38 that forms the outside of the rear side door 18 and is exposed to the outside 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 arranged in the door body, and the outer peripheral edge portion 38A of the door outer panel 38 and the outer peripheral edge portion 36A of the door inner panel 36 are joined by hemming. Yes.

  The rear end portion (outer peripheral edge portion) 18A of the rear side door 18 is formed thinner in the vehicle width direction than the intermediate portion 18B in the front-rear direction (inner portion of the outer peripheral edge portion). It covers from the outside in the vehicle width direction. Specifically, an impact beam mounting wall portion 36 </ b> B that faces the step portion 30 </ b> B of the quarter pillar outer panel 30 in the closed state of the rear door opening 14 is formed at the rear end portion of the door inner panel 36. A rear wall portion 36C is formed from the rear end of the mounting wall portion 36B toward the outer side in the vehicle width direction, and an outer peripheral edge portion 36A is formed at the outer end in the vehicle width direction of the rear wall portion 36C toward the rear of the vehicle. Yes.

  A front wall portion 36D is formed from the front end of the mounting wall portion 36B of the door inner panel 36 toward the vehicle width inner side, and the front wall portion 36D faces the front wall portion 30C of the quarter pillar outer panel 30. Further, an inner side wall portion 36E in the vehicle width direction is formed from the inner end in the vehicle width direction of the front wall portion 36D toward the front of the vehicle.

  As shown in FIG. 4, 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. 4) 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. An impact beam extension (hereinafter referred to as an extension) 42 as an impact beam mounting member is fixed to the rear end portion 40A of the impact beam 40. The rear end portion 40A of the impact beam 40 is coupled to an impact beam fixing portion 42A formed at the front end portion of the extension 42 by welding or the like.

  The front end portion of the impact beam 40 is also coupled to the rear portion of the door inner panel 36 via the extension 43.

  FIG. 1 is a perspective view of the rear portion of the rear side door 18 as viewed from the rear of the vehicle. In FIG. 1, the weather strip 34 shown in FIG. 2 is omitted.

  As shown in FIG. 1, the impact beam 40 is made of, for example, a pipe material having a circular cross section. Further, the cross-sectional shape of the extension 42 as viewed from the vehicle front-rear direction of the center portion of the impact beam fixing portion 42A in the vehicle vertical direction is an arc shape with the opening portion facing outward in the vehicle width direction, and the rear end of the impact beam 40 The portion 40A is fixed by bonding, welding, or the like while being inserted into the arc-shaped inner peripheral portion of the impact beam fixing portion 42A of the extension 42.

  As shown in FIG. 2, the outer periphery of the impact beam 40 on the outer side in the vehicle width direction is bonded to the door outer panel 38 with an adhesive 41. Further, a portion of the extension 42 on the vehicle rear side of the impact beam fixing portion 42A is a flat door fixing portion 42B, and a flange as an impact beam attachment member breakage preventing means is provided at the rear end portion of the door fixing portion 42B. 42C is bent toward the outer side in the vehicle width direction. That is, the flange 42C as the impact beam mounting member breakage preventing means is integrated with the extension 42 (the same member).

  Note that flanges 42G and 42H are formed at the upper end and the lower end of the extension 42 toward the vehicle width outer side, and the rear ends of these flanges 42G and 42H are connected to the upper end and the lower end of the flange 42C.

  As shown in FIG. 1, the flange 42 </ b> C is disposed in the entire region of the rear end edge of the extension 42 along the vehicle vertical direction, and is substantially in the vehicle longitudinal direction, which is the longitudinal direction of the impact beam 40. Intersect (substantially orthogonal).

  Therefore, at the time of a vehicle side collision, the middle part of the extension 42 in the vertical direction is pressed by the impact beam 40, and the extension 42 tries to bend in the vehicle width inside direction (the direction of arrow F1 in FIG. 3) starting from the middle part in the vertical direction. To do. At this time, the bending force generated in the extension 42 is supported by the flange 42C of the extension 42, and the bending force is dispersed in the vehicle vertical direction, so that the deformation of the extension 42 can be prevented. As a result, the side impact load F <b> 1 acting on the rear side door 18 is transmitted from the impact beam 40 to the mounting wall portion 36 </ b> B of the door inner panel 36 through the entire area of the door fixing portion 42 </ b> B of the extension 42. The mounting wall portion 36 </ b> B is efficiently transmitted to the stepped portion 30 </ b> B of the quarter pillar outer panel 30.

  Further, when the flange 42C of the extension 42 hits the door inner panel 36, the side impact load F1 acting on the door inner panel 36 can be distributed in the vehicle vertical direction along the flange 42C. As a result, since local deformation of the door inner panel 36 can be suppressed, the side impact load F1 acting on the rear side door 18 can be more efficiently transmitted from the mounting wall portion 36B of the door inner panel 36 to the quarter pillar outer panel 30. Yes.

  Further, as shown in FIG. 2, in a normal state, a gap 37 is formed along the vehicle vertical direction between the flange 42 </ b> C of the extension 42 and the rear wall portion 36 </ b> C of the door inner panel 36. As a result, water easily flows along the gap 37, and it is difficult for water to collect between the flange 42C of the extension 42 and the door inner panel 36. In addition, it is easy for the electrodeposition coating to enter between the flange 42C of the extension 42 and the door inner panel 36. For this reason, rust prevention performance improves.

  Further, the rigidity of the door fixing portion 42B of the extension 42 is improved by the flange 42C of the extension 42. As a result, the assembly accuracy of the extension 42 to the door inner panel 36 is improved. Furthermore, since the rigidity of the extension 42 is improved, the kinetic energy due to the inertial mass of the impact beam 40 can be reliably transmitted to the wide surface of the door inner panel 36. As a result, when the rear side door 18 is closed, the weather strip 34 provided on the door inner panel 36 can be flexed efficiently by the kinetic energy of the impact beam 40, so that the door closes better. .

  As shown in FIG. 2, the weather strip 34 is provided at a corner portion 36F of the mounting wall portion 36B and the front wall portion 36D of the door inner panel 36. The gap between the step portion 30B of the 36F and the quarter pillar outer panel 30 and the corner portion 30F of the front wall portion 30C is sealed.

  Next, the operation of this embodiment will be described.

  In the present embodiment configured as described above, when the other vehicle or the like collides with the rear side door 18 from the outer side in the vehicle width direction toward the inner side in the vehicle width direction as shown by a two-dot chain line in FIG. The portion is pressed by the impact beam 40, and the extension 42 tends to bend in the vehicle width inside direction (in the direction of arrow F1 in FIG. 3) starting from the middle portion in the vertical direction. At this time, since the flange 42C of the extension 42 is set in a direction crossing the longitudinal direction of the impact beam 40, the bending force generated in the impact beam fixing portion 42A of the extension 42 is supported by the flange 42C, and this bending force is supported in the vehicle vertical direction. By dispersing in the direction, the extension 42 can be prevented from being bent and the deformation of the mounting wall portion 36B of the door inner panel 36 can be suppressed.

  As a result, the side impact load F1 acting on the rear side door 18 is transmitted from the impact beam 40 to the mounting wall portion 36B of the door inner panel 36 through the entire region of the door fixing portion 42B of the extension 42, It is efficiently transmitted from the mounting wall portion 36B to the step portion 30B of the quarter pillar outer panel 30.

  Further, when the flange 42C of the extension 42 hits the door inner panel 36, the side impact load F1 acting on the door inner panel 36 can be distributed in the vehicle vertical direction along the flange 42C. For this reason, since local deformation of the door inner panel 36 can be suppressed, the side impact load F1 acting on the rear side door 18 can be more efficiently transmitted from the mounting wall portion 36B of the door inner panel 36 to the step portion 30B of the quarter pillar outer panel 30. .

  In a normal state, a gap 37 is formed along the vehicle vertical direction between the flange 42C of the extension 42 and the rear wall portion 36C of the door inner panel 36. As a result, water easily flows along the gap 37, and it is difficult for water to collect between the flange 42C of the extension 42 and the door inner panel 36. In addition, it is easy for the electrodeposition coating to enter between the flange 42C of the extension 42 and the door inner panel 36. For this reason, rust prevention performance can be improved.

  Further, the rigidity of the door fixing portion 42B of the extension 42 is improved by the flange 42C of the extension 42. As a result, the assembly accuracy of the extension 42 to the door inner panel 36 can be improved. Furthermore, since the rigidity of the extension 42 is improved, the kinetic energy due to the inertial mass of the impact beam 40 can be reliably transmitted to the wide surface of the door inner panel 36. As a result, when the rear side door 18 is closed, the weather strip provided on the door inner panel 36 can be efficiently bent by the kinetic energy of the impact beam 40, and the door can be closed well.

  Further, in the present embodiment, the impact beam mounting member breakage preventing means is formed as the flange 42C having the end portion of the extension 42 bent, thereby facilitating the formation of the impact beam mounting member breakage preventing means to the extension 42.

  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.

  5 shows a perspective view corresponding to FIG. 1, and FIG. 6 shows a cross-sectional view corresponding to FIG. As shown in FIG. 6, in the present embodiment, an engagement convex portion 44 as a vehicle side collision engagement means is formed at the rear portion of the mounting wall portion 36 </ b> B of the door inner panel 36, and the stepped portion 30 </ b> B side of the quarter pillar outer panel 30. It is formed so as to protrude toward the inner side of the vehicle width by press molding or the like. Further, the rear end 44A of the engaging convex portion 44 reaches the rear wall portion 36C. That is, the rear end 44 </ b> A of the engaging convex portion 44 is close to the outer peripheral edge 38 </ b> A of the door outer panel 38 joined to the outer peripheral edge 36 </ b> A of the door inner panel 36.

  As shown in FIG. 5, a plurality of engaging convex portions 44 are formed at predetermined intervals in the vehicle vertical direction, and the engaging convex portions 44 have a rectangular trapezoidal shape. Further, one of the engaging convex portions 44 is formed at a portion of the mounting wall portion 36B that faces the central portion in the vertical direction of the door fixing portion 42B of the extension 42.

  FIG. 7 is an enlarged cross-sectional view taken along the line 7-7 in FIG. As shown in FIG. 7, the upper wall portion 44B of the engaging convex portion 44 is inclined from the upper outside in the vehicle width direction toward the lower inner side in the vehicle width direction, and the lower wall portion 44C of the engaging convex portion 44 is the vehicle width. It is inclined from the lower side in the direction toward the upper side in the vehicle width direction.

  Therefore, also in this embodiment, the same effect as the first embodiment can be obtained. Further, the rear end 44A of the engaging convex portion 44 formed on the door inner panel 36 approaches the outer peripheral edge portion 38A of the door outer panel 38 joined to the outer peripheral edge portion 36A of the door inner panel 36. As a result, the stepped portion 30B of the quarter pillar outer panel 30 with which the engaging convex portion 44 abuts the side impact load (arrow F1 in FIG. 7) received by the door outer panel 38 via the engaging convex portion 44 at the time of a vehicle side collision. Can communicate quickly. For this reason, the initial load at the time of a vehicle side collision can be raised. Further, as shown by a two-dot chain line in FIG. 6 at the time of a vehicle side collision, the engaging convex portion 44 bites into the step portion 30B of the quarter pillar outer panel 30, and the engaging convex portion 44 and the step portion 30B of the quarter pillar outer panel 30 are connected. By engaging, the rear side door 18 can be prevented from being deformed forward in the vehicle width direction (in the direction of arrow A).

  In the present embodiment, the engaging convex portion 44 is formed on the mounting wall portion 36 </ b> B of the door inner panel 36 that serves as a sealing surface by the weather strip 34. As a result, the rigidity of the mounting wall portion 36 </ b> B of the door inner panel 36 is improved by the engagement convex portion 44. For this reason, when the rear side door 18 is closed, loss due to bending deformation of the door inner panel 36 can be reduced, and the kinetic energy of the door outer panel 38 can be transmitted to the weather strip 34, and the rear side door 18 is closed. Get better. Moreover, since the flowing water at the time of car-washing hits the engaging convex part 44, since it becomes difficult for a flowing water to hit the weather strip 34 directly, waterproof performance improves. Further, the area of the rear wall portion 36C of the door inner panel 36 is expanded inward in the vehicle width direction by the rear end 44A of the engaging convex portion 44. As a result, the front collision load acting on the rear side door 18 at the time of the vehicle front collision can be efficiently transmitted to the quarter pillar outer panel 30 via the rear wall portion 36C of the door inner panel 36.

  Further, when the side collision load F1 is transmitted from the extension 42 to the mounting wall portion 36B of the door inner panel 36 at the time of a vehicle side collision, as shown by an arrow F2 in FIG. The side impact load can be distributed over a wide range of the mounting wall portion 36B of the door inner panel 36 by the 44B and the lower wall portion 44C. As a result, local deformation between the mounting wall portion 36B of the door inner panel 36 and the quarter pillar outer panel 30 can be further suppressed, and load transmission can be performed more efficiently.

  Further, an engagement convex portion 44 is formed on the joint surface of the door inner panel 36 with the extension 42, and the opening side of the engagement convex portion 44 is closed by the extension 42, so that the engagement convex portion 44 at the time of a vehicle-side collision is obtained. The cross-sectional collapse (collapse) can be suppressed. As a result, the engaging convex portion 44 can be reliably engaged with the mounting wall portion 36B of the door inner panel 36. For this reason, the side impact load received by the extension 42 can be transmitted to the mounting wall portion 36 </ b> B of the door inner panel 36 at an early stage via the engaging convex portion 44.

  Further, the rigidity of the door inner panel 36 is improved by the engagement convex portion 44. As a result, the distortion of the door inner panel 36 generated on the joint surface with the door outer panel 38 can be reduced, and variations in gaps and steps between the rear side door 18 and the quarter pillar 28 can be suppressed.

  Next, the vehicle side part structure concerning 3rd Embodiment of this invention is demonstrated based on FIG.8 and FIG.9.

  In addition, about the same member as 2nd Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  8 is a perspective view corresponding to FIG. 5, and FIG. 9 is a cross-sectional view corresponding to FIG. As shown in FIG. 8, in the present embodiment, the engagement convex portion 44 formed at the portion of the mounting wall portion 36 </ b> B of the door inner panel 36 that faces the vertical center portion of the door fixing portion 42 </ b> B of the extension 42, The vehicle is extended in the vertical direction. Further, the upper wall portion 44B of the engaging convex portion 44 is positioned above the vehicle with respect to the extension 42, and the lower wall portion 44C of the engaging convex portion 44 is positioned below the vehicle with respect to the extension 42.

  As shown in FIG. 9, in this embodiment, the flange 42 </ b> C of the extension 42 is bent toward the inner side of the vehicle width and is inserted inside the engagement convex portion 44. That is, the engaging convex portion 44 is a concave portion recessed toward the step portion 30B of the quarter pillar outer panel 30, and the flange 42C of the extension 42 is inserted inside the concave portion (engaging convex portion 44).

  Therefore, also in this embodiment, the same effect as the second embodiment can be obtained. Further, since the engaging convex portion 44 formed in the portion of the mounting wall portion 36B of the door inner panel 36 facing the vertical center of the door fixing portion 42B of the extension 42 is extended in the vehicle vertical direction, The side impact load can be transmitted to the wide range along the vertical direction of the stepped portion 30B of the quarter pillar outer panel 30 with which the engaging convex portion 44 abuts via the engaging convex portion 44. As a result, the stress acting on the junction (welding point) between the extension 42 and the door inner panel 36 at the time of a vehicle-side collision can be alleviated. For this reason, the plate thickness of the extension 42 and the plate thickness of the door inner panel 36 can be reduced and the weight can be reduced, and the cost can be reduced by reducing the joint points (welding points) between the extension 42 and the door inner panel 36. Become.

  Further, the flange 42 </ b> C of the extension 42 is bent toward the inner side of the vehicle width, and is inserted into the engagement convex portion 44. For this reason, at the time of a vehicle-side collision, the flange 42C of the extension 42 moves forward (in the direction of arrow B in FIG. 9) and hits the inside of the front wall portion 44E of the engagement convex portion 44, so that the load can be transmitted efficiently. .

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

  In addition, about the same member as 2nd Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  10 is a perspective view corresponding to FIG. 5, and FIG. 11 is a cross-sectional view corresponding to FIG.

  As shown in FIG. 10, in the present embodiment, a plurality of engagement convex portions 44 are spaced apart from each other by a predetermined distance in the vehicle vertical direction at the joint portion of the attachment wall portion 36B of the door inner panel 36 with the extension 42 (FIG. 10). 3). Further, the extension 42 has three convex beads 50 as long convex portions in a portion overlapping with the engaging convex portion 44 in a side view of the vehicle in the longitudinal direction of the vehicle in which the longitudinal direction is the longitudinal direction of the impact beam 40. The door fixing portion 42B of the extension 42 and the mounting wall portion 36B of the door inner panel 36 are joined at the top and bottom of each convex bead 50 (welding point P1).

  As shown in FIG. 11, the convex bead 50 has a convex shape toward the outer side in the vehicle width direction by press molding or the like, and the rear portion 50 </ b> A overlaps the outer side in the vehicle width direction of the front portion 44 </ b> D of the engaging convex portion 44. . Further, the front portion 50B of the convex bead 50 reaches the vehicle front side from the corner portion 36F between the mounting wall portion 36B and the front wall portion 36D of the door inner panel 36.

  Therefore, also in this embodiment, the same effect as the second embodiment can be obtained. Further, a convex bead 50 whose longitudinal direction is the longitudinal direction of the impact beam 40 is formed on the door fixing portion 42B of the extension 42 so as to protrude outward in the vehicle width direction, and the door fixing portion 42B of the extension 42 and the door inner panel above and below the convex bead 50. By joining the 36 mounting wall portions 36B (welding points P1), the bending rigidity along the longitudinal direction of the impact beam 40 of the door fixing portion 42B in the extension 42 can be improved.

  Moreover, the opening of the convex bead 50 can be suppressed by connecting the upper peripheral edge and the lower peripheral edge of each convex bead 50 by each engaging convex portion 44. For this reason, the fall of the bending rigidity along the vehicle up-down direction in the extension 42 by forming the some convex bead 50 can be prevented.

  Moreover, since the inside of the convex bead 50 and the inside of the engaging convex part 44 are connected, the water channel shown by the arrow W1 in FIG. 11 is formed. As a result, water can be prevented from accumulating inside the convex bead 50 and the engaging convex portion 44, and the electrodeposition coating can easily enter between the extension 42 and the door inner panel 36. For this reason, rust prevention performance improves.

  Next, the vehicle side part structure concerning 5th Embodiment of this invention is demonstrated based on FIG.12 and FIG.13.

  In addition, about the same member as 3rd Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  12 is a perspective view corresponding to FIG. 8, and FIG. 13 is a cross-sectional view corresponding to FIG.

  As shown in FIGS. 12 and 13, in this embodiment, the vehicle width direction inner side portion of the flange 42 </ b> C of the extension 42 is curved in a semicircular shape, and the curved portion is inside the engagement convex portion 44. . Further, the distal end portion of the flange 42C protrudes outward from the engagement convex portion 44 in the vehicle width direction.

  Therefore, in this embodiment, the same effect as in the third embodiment can be obtained, and the inner side in the vehicle width direction of the flange 42C of the extension 42 is curved in a semicircular shape, so that the door fixing portion 42B of the extension 42 is The rigidity can be further improved.

  Note that the flange 42C of the extension 42 may be bent a plurality of times to have other cross-sectional shapes.

  Next, the vehicle side part structure concerning 6th Embodiment of this invention is demonstrated based on FIG.14 and FIG.15.

  In addition, about the same member as 2nd Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  14 is a perspective view corresponding to FIG. 5, and FIG. 15 is a cross-sectional view corresponding to FIG.

  As shown in FIGS. 14 and 15, in this embodiment, the rear end 44A of the engaging convex portion 44 is extended to the rear wall portion 36C of the door inner panel 36, and the rear end 44A of the engaging convex portion 44 is The rear wall 36C is traversed along the vehicle width direction.

  Accordingly, in the present embodiment, the same operational effects as those of the second embodiment can be obtained, and the rear end 44A of the engaging convex portion 44 crosses the rear wall portion 36C along the vehicle width direction. The rigidity of the panel 36 can be further improved.

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

  In addition, about the same member as 2nd Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  16 is a perspective view corresponding to FIG. 5, and FIG. 17 is a cross-sectional view corresponding to FIG.

  As shown in FIGS. 16 and 17, in this embodiment, an extension 40B is formed at the tip of the rear end 40A of the impact beam 40, and the extension 40B is crushed in the vehicle width direction and has an oval cross-sectional shape. It has become. Further, the extension portion 40B of the impact beam 40 is joined to the outer surface in the vehicle width direction of the door fixing portion 42B of the extension 42.

  As shown in FIG. 16, the extension 40 </ b> B of the impact beam 40 is disposed between the adjacent upper and lower engaging projections 44. Further, the lower end portion 42E of the flange 42C of the extension 42 and the lower engaging convex portion 44 overlap each other in the vehicle side view, and the upper end portion 42D of the flange 42C of the extension 42 and the upper engaging convex portion 44 are connected to the vehicle. Overlapping in side view.

  Accordingly, in this embodiment, the same effects as those of the second embodiment can be obtained, and the extension portion 40B of the impact beam 40 and the upper end portion 42D and the lower end portion 42E of the flange 42C of the extension 42 are overlapped in a vehicle side view. By the engagement convex portion 44, the side impact load can be distributed over a wide range of the mounting wall portion 36B of the door inner panel 36. As a result, local deformation between the mounting wall portion 36B of the door inner panel 36 and the quarter pillar outer panel 30 can be further suppressed, and load transmission can be performed more efficiently.

  Next, the vehicle side part structure concerning 8th Embodiment of this invention is demonstrated based on FIGS.

  In addition, about the same member as 2nd Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  18 is a perspective view corresponding to FIG. 5, and FIG. 19 is a cross-sectional view corresponding to FIG.

  As shown in FIGS. 18 and 19, in the present embodiment, a convex portion 62 projecting inward in the vehicle width direction is formed in the vicinity of the flange 42 </ b> C in the door fixing portion 42 </ b> B of the extension 42, and the convex portion 62 is engaged. It protrudes into the convex portion 44.

  FIG. 20 shows a perspective view of the convex portion 62 as seen from the vehicle front inner side. As shown in FIG. 20, the convex portion 62 is formed so as to project inward in the vehicle width direction by pressing or the like after forming a notch 64 having a longitudinal direction in the vehicle vertical direction in the door fixing portion 42B of the extension 42. The protrusion height H1 of the convex portion 62 is inclined so as to decrease from the vehicle front side toward the vehicle rear side.

  Therefore, in this embodiment, the same operation and effect as in the second embodiment can be obtained, and load transmission from the door fixing portion 42B of the extension 42 to the mounting wall portion 36B of the door inner panel 36 can be performed more efficiently by the convex portion 62. it can.

  Next, the vehicle side part structure concerning 9th Embodiment of this invention is demonstrated based on FIGS.

  In addition, about the same member as 2nd Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  21 is a perspective view corresponding to FIG. 5, and FIG. 22 is a cross-sectional view corresponding to FIG.

  As shown in FIGS. 21 and 22, in this embodiment, a plurality of engagement convex portions 44 are spaced apart from each other by a predetermined distance in the vehicle vertical direction at the joint portion of the attachment wall portion 36 </ b> B of the door inner panel 36 with the extension 42. (Two in FIG. 21) are formed. Further, the extension 42 is formed with a convex bead 56 as a long convex portion at a portion overlapping the engaging convex portion 44 in a side view of the vehicle along the longitudinal direction of the vehicle, the longitudinal direction of which is the longitudinal direction of the impact beam 40. Has been.

  As shown in FIG. 22, the convex bead 56 has a convex shape toward the outer side in the vehicle width direction, and the rear portion 56 </ b> A overlaps the outer side in the vehicle width direction of the front portion 44 </ b> D of the engaging convex portion 44. Further, the front portion 56 </ b> B of the convex bead 56 reaches the front end 42 </ b> F of the extension 42.

  FIG. 23 is an enlarged cross-sectional view taken along the line 23-23 in FIG. As shown in FIG. 23, the extension 42 and the impact beam 40 are welded (welded portion P <b> 2) in the convex bead 56.

  Therefore, also in this embodiment, the same effect as the second embodiment can be obtained. Further, by forming a plurality of convex beads 56 whose longitudinal direction is along the longitudinal direction of the vehicle in the extension 42 and welding the impact beam 40 to the convex bead 56, a load can be efficiently transmitted from the impact beam 40 to the extension 42. Moreover, since the inside of the convex bead 56 and the inside of the engaging convex part 44 are connected, the water channel shown by the arrow W2 in FIG. 22 is formed. As a result, water can be prevented from accumulating inside the convex bead 56 and the engaging convex portion 44, and the electrodeposition coating can easily enter between the extension 42 and the door inner panel 36. For this reason, rust prevention performance improves.

  Next, the vehicle side part structure according to the tenth 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. 24 is a perspective view of the extension 70 according to this embodiment as viewed from the front in the vehicle width direction.

  As shown in FIG. 24, in this embodiment, the extension 70 is made of a plate material whose longitudinal direction is the vehicle vertical direction, and an impact beam mounting portion 70A is formed at the center in the vertical direction of the extension 70. Further, the impact beam mounting portion 70A of the extension 70 is a groove portion having a semicircular cross-sectional shape that is recessed toward the inside of the vehicle width, and the rear end portion 40A of the impact beam 40 is formed on the impact beam mounting portion 70A of the extension 70. It is fixed by bonding, welding or the like while being inserted into the arc-shaped inner periphery.

  A door fixing portion 70B to the door inner panel 36 is formed at the upper portion of the extension 70, and a door fixing portion 70C to the door inner panel 36 is also formed at the lower portion of the extension 70.

  A flange 70D that is inclined upward in the vehicle width direction is formed at the upper edge of the door fixing portion 70B of the extension 70, and the vehicle width direction outer side is formed at the lower edge of the door fixing portion 70C of the extension 70. A flange 70E inclined downward is formed.

  The door fixing portion 70B and the flange 70D of the extension 70 are formed with convex beads 72 as an impact beam attachment member breakage preventing means so as to protrude outward in the vehicle width direction. A convex bead 74 as a means for preventing the impact beam mounting member from breaking is formed so as to protrude outward in the vehicle width direction.

  The convex beads 72 are arranged in the longitudinal direction of the vehicle in the longitudinal direction of the vehicle in the longitudinal direction of the vehicle in the longitudinal direction of the impact beam 40 in the entire region of the door fixing portion 70B of the extension 70 and the lower portion of the flange 70D. Orthogonal). The upper end portion 72A of the convex bead 72 is bifurcated in the vehicle front-rear direction.

  Further, the convex beads 74 are arranged along the vehicle vertical direction in the longitudinal direction of the vehicle in the longitudinal direction of the impact beam 40 and are arranged in the longitudinal direction of the vehicle over the door fixing portion 70C of the extension 70 and the upper portion of the flange 70E. (Substantially orthogonal).

  Therefore, in this embodiment, the extension 70 is pressed by the impact beam 40 at the time of a vehicle-side collision, and the door fixing portions 70B and 70C of the extension 70 bend inward in the vehicle width direction from the respective middle portions in the vertical direction. When trying to do so, by supporting the bending force generated in the extension 70 by the convex beads 72 and the convex beads 74 formed on the door fixing portions 70B and 70C of the extension 70, and dispersing this bending force in the vehicle vertical direction, The bending of the door fixing portions 70B and 70C of the extension 70 can be prevented. As a result, the side impact load acting on the rear side door 18 is transmitted from the impact beam 40 to the mounting wall portion 36B of the door inner panel 36 through the entire area of the door fixing portions 70B and 70C of the extension 70. For this reason, the side impact load can be efficiently transmitted from the mounting wall portion 36 </ b> B of the door inner panel 36 to the quarter pillar outer panel 30.

  In addition, flanges 70D and 70E that are inclined outward in the vehicle width direction are formed on the extension 70, and a gap is formed between the front ends of the flanges 70D and 70E and the door inner panel 36. Contact between the edge of the front end of 70E and the door inner panel 36 can be prevented, and damage to the door inner panel 36 can be prevented. As a result, the deformation of the door inner panel 36 can be suppressed, and the side impact load from the door inner panel 36 to the quarter pillar outer panel 30 can be efficiently transmitted.

  Note that, as shown in FIG. 25, the flange 70E of the extension 70 may be folded back upward in the vehicle width direction.

  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, as shown in FIGS. 26 and 27, a reinforcing flange 42J may be formed on the periphery of the extension 42 in the first embodiment toward the outer periphery of the extension 42.

  Further, in each of the above embodiments, the flange 42C and the convex beads 72, 74 as the impact beam mounting member folding preventing means are formed on the door fixing portions 42B, 70B, 70C of the extensions 42, 70, but the impact beam mounting member folding prevention is performed. The means is not limited to the flange 42C and the convex beads 72 and 74, and other configurations such as a folded portion may be used.

  Further, the impact beam mounting member breakage preventing means may be constituted by a member separate from the extensions 42 and 70.

  In the above embodiments, the present invention is applied to the extension 42 provided at the rear end portion of the impact beam 40. However, the present invention may be applied to an extension 43 provided at the front end portion of the impact beam 40.

  Further, in each of the above embodiments, the 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 thereto, for example, You may apply to the front side door 16 grade | etc.,.

It is the perspective view seen from the vehicle inner side diagonal back which shows the rear part of the rear side door of the vehicle side part structure which concerns on 1st Embodiment of this invention. It is an expanded sectional view along the 2-2 line section of Drawing 4. FIG. 3 is an enlarged cross-sectional view taken along a line 3-3 in FIG. 2. 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. 1 of the vehicle side part structure which concerns on 2nd Embodiment of this invention. It is sectional drawing corresponding to FIG. 2 of the vehicle side part structure which concerns on 2nd Embodiment of this invention. It is an expanded sectional view along the 7-7 line section of FIG. It is a perspective view corresponding to FIG. 5 of the vehicle side part structure which concerns on 3rd Embodiment of this invention. It is sectional drawing corresponding to FIG. 6 of the vehicle side part structure which concerns on 3rd Embodiment of this invention. It is a perspective view corresponding to FIG. 5 of the vehicle side part structure which concerns on 4th Embodiment of this invention. It is sectional drawing corresponding to FIG. 6 of the vehicle side part structure which concerns on 4th Embodiment of this invention. It is a perspective view corresponding to FIG. 8 of the vehicle side part structure which concerns on 5th Embodiment of this invention. It is sectional drawing corresponding to FIG. 9 of the vehicle side part structure which concerns on 5th Embodiment of this invention. It is a perspective view corresponding to FIG. 5 of the vehicle side part structure which concerns on 6th Embodiment of this invention. It is sectional drawing corresponding to FIG. 6 of the vehicle side part structure which concerns on 6th Embodiment of this invention. It is a perspective view corresponding to FIG. 5 of the vehicle side part structure which concerns on 7th Embodiment of this invention. It is sectional drawing corresponding to FIG. 6 of the vehicle side part structure which concerns on 7th Embodiment of this invention. It is a perspective view corresponding to FIG. 5 of the vehicle side part structure which concerns on 8th Embodiment of this invention. It is sectional drawing corresponding to FIG. 6 of the vehicle side part structure which concerns on 8th Embodiment of this invention. It is the perspective view seen from the vehicle front inner side of the convex part of the vehicle side part structure which concerns on 8th Embodiment of this invention. It is a perspective view corresponding to FIG. 5 of the vehicle side part structure which concerns on 9th Embodiment of this invention. It is sectional drawing corresponding to FIG. 6 of the vehicle side part structure which concerns on 9th Embodiment of this invention. It is an expanded sectional view along the 23-23 line cross section of FIG. It is the perspective view seen from the vehicle width inner side which shows the extension of the vehicle side part structure which concerns on 10th Embodiment of this invention. It is the perspective view seen from the vehicle width inner side front which shows the extension of the vehicle side part structure which concerns on the modification of 10th Embodiment of this invention. It is the perspective view seen from the vehicle inner side diagonal back which shows the extension of the vehicle side part structure which concerns on other embodiment of this invention. It is sectional drawing corresponding to FIG. 2 of the vehicle side part structure which concerns on other embodiment of this invention.

Explanation of symbols

14 Rear door opening 18 Rear side door 28 Quarter pillar (vehicle body side pillar)
30 Quarter pillar outer panel 36 Door inner panel 38 Door outer panel 40 Impact beam 42 Extension (impact beam mounting part)
42A Extension impact beam fixing part 42B Extension door fixing part 42C Extension flange (impact beam mounting member breakage prevention means)
44 Engaging convex part (engagement means at the time of vehicle side collision)
50 Convex beads (long convex part)
56 Convex bead (long convex part)
62 Convex part 70 Extension (impact beam mounting part)
70A Extension impact beam mounting portion 70B Extension door fixing portion 70C Extension door fixing portion 72 Convex bead (impact beam mounting member breakage prevention means)
74 Convex beads (impact beam mounting member breakage prevention means)

Claims (6)

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;
An impact beam mounting member in which the impact beam is fixed to the impact beam fixing portion, and a door fixing portion that is in contact with the vehicle body side pillar across the inner panel of the door at the time of a vehicle side collision is fixed to the inner panel of the door;
Impact beam mounting member breakage preventing means continuously formed in the door fixing portion of the impact beam mounting member along a direction intersecting with the longitudinal direction of the impact beam;
The vehicle side part structure characterized by having.   The impact beam mounting member has an impact beam fixing portion formed at one end and a door fixing portion formed at the other end, and the impact beam mounting member breakage preventing means is the door of the impact beam mounting member. The vehicle side part structure according to claim 1, wherein the vehicle side part structure is formed at an end of the fixed part opposite to the impact beam.   The vehicle side part structure according to claim 2, wherein the impact beam mounting member breakage preventing means is a flange formed by bending an end of the impact beam mounting member.   4. The vehicle-side collision engagement means provided at a portion of the door inner panel on the inner side in the vehicle width direction of the flange and formed to protrude toward the vehicle body side pillar. 5. Vehicle side structure.   5. The vehicle according to claim 4, wherein the vehicle-side collision engagement means has a recess recessed toward the vehicle body-side pillar, and the flange is inserted inside the recess. Side structure.   The door fixing portion of the impact beam mounting member is formed to protrude outward in the vehicle width direction, and is provided with a long convex portion whose longitudinal direction is the longitudinal direction of the impact beam, and the door fixing portion above and below the long convex portion. The vehicle side part structure according to claim 4, wherein the door inner panel is joined.

Images