JP2007313963A - Roof side structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To suppress cross section deformation of a roof side skeleton part. <P>SOLUTION: In the roof side structure 10, an upper wall 18A and a lower wall 18B making a longitudinal direction of a vehicle body to a longitudinal direction respectively are connected to a side wall 18C at an outer end in a vehicle width direction, and a roof side inner panel 20 is joined to a roof side outer panel 18 formed by it, thereby, a roof side rail 12 of a closed cross section structure interposed between a center pillar 16 and a roof panel 14 is formed. In the roof side rail 12, a reinforcement member 38 for laying the upper wall 18A and the lower wall 18B at a position left from the side wall 18C is arranged. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a roof side structure in which a longitudinal intermediate portion of a roof side rail is joined to an upper end of a center pillar.

A vehicle body structure is known in which a roof side rail is connected to the upper end of the center pillar in the roof side rail and the outer end in the vehicle width direction of the roof bow that is provided on the inner surface of the roof panel and extends in the vehicle width direction. (For example, refer to Patent Document 1).
Japanese Patent Laid-Open No. 10-167114 Japanese Patent Laid-Open No. 10-100936

  However, in the conventional technology as described above, there is no consideration for suppressing the sound generation of the roof panel due to the cross-sectional deformation of the roof side rail, and there is room for improvement in this respect.

  In view of the above fact, an object of the present invention is to obtain a roof side structure capable of suppressing the deformation of the cross section of the roof side skeleton.

  In order to achieve the above object, the roof side structure according to the first aspect of the present invention is formed by connecting an upper wall and a lower wall, which are each elongated in the longitudinal direction of the vehicle body, at the outer end in the vehicle width direction. The roof side outer member having a closed cross-section structure joined to the center pillar and the roof panel is joined to the roof side outer member and the opening side facing the vehicle width direction inside of the roof side outer member. A roof side inner member, and a portion of the upper wall that is spaced from the side wall, a portion of the lower wall that is spaced from the side wall, or a lower side of the roof side outer member. And a reinforcing member that spans a flange that extends from the opening end.

  In the roof side structure according to claim 1, the reinforcing member is disposed inside the roof side skeleton portion having a closed cross section formed by joining the roof side outer member and the roof side inner member. The part of the wall and the lower wall that are separated from the side wall, or the part of the upper wall that is separated from the side wall and the flange extending from the inner end in the vehicle width direction (end opposite to the side wall) of the lower wall are bridged The reinforcing member (intervening between them) has an in-plane force (axial force) in the direction in which the upper wall and the lower wall (each opening end) of the roof side skeleton part contact and separate (relative displacement). Suppresses cross-sectional deformation. In particular, in the configuration in which the portion of the roof side inner member that closes the opening of the roof side outer member has a bent portion, the roof side skeleton is likely to undergo cross-sectional deformation, but this cross-sectional deformation is effectively suppressed by the reinforcing member. can do.

  Thus, in the roof side structure according to claim 1, it is possible to suppress the cross-sectional deformation of the roof side skeleton portion. For this reason, for example, even when the roof side skeleton part itself is formed in a shape that easily causes cross-sectional deformation due to a request for design or safety device arrangement, the cross-sectional deformation of the roof side skeleton part can be suppressed. It is possible to effectively suppress the sound generation of the roof panel due to the cross-sectional deformation of the side roof side skeleton.

  The roof side structure according to a second aspect of the present invention is the roof side structure according to the first aspect, wherein the reinforcing member is on the inner side in the vehicle width direction with respect to the centroid of the roof side skeleton part and from the side wall of the upper wall. The separated portion and the portion of the lower wall separated from the side wall or the flange were bridged.

  In the roof side structure according to claim 2, the reinforcing member hangs the upper wall and the lower wall or the upper wall and the flange on the inner side in the vehicle width direction from the centroid of the roof side skeleton, that is, on the opening end side of the roof side outer member. Since it passes, the effect of suppressing the cross-sectional deformation of the roof side skeleton is high.

  The roof side structure according to a third aspect of the present invention is the roof side structure according to the first or second aspect, wherein the reinforcing member is disposed on the front and rear sides of the reinforcement in the outer panel superimposed on the inner surface of the roof side outer member. The roof side outer member is formed between the upper wall and the lower wall so as to divide the inside of the roof side outer member in the longitudinal direction of the vehicle body.

  The roof side structure according to claim 3 divides the inside of the roof side outer member (the roof side skeleton portion of the closed section) in the longitudinal direction of the vehicle body by bending the end portion of the reinforcement in the outer panel that reinforces the roof side outer member. In this way, a partition-shaped reinforcing member that is interposed between the upper wall and the lower wall (between the upper wall and the lower wall) is formed. For example, in the configuration including the reinforcement in the outer panel for reinforcing the roof side outer member against bending, the reinforcing member can be set without increasing the number of parts.

  In order to achieve the above object, a roof side structure according to a fourth aspect of the present invention includes a roof side outer member that opens inward in the vehicle width direction and is elongated in the longitudinal direction of the vehicle body, and an inner side of the roof side outer member. A roof side that is joined to the opening side of the roof side outer member on both sides of the bent portion that protrudes in the direction, and forms a roof side skeleton portion of a closed section connected to the center pillar and the roof panel with the roof side outer member An inner member, and reinforcing members respectively connected to both side portions of the bent portion of the roof side inner member.

  The roof side structure according to claim 4, wherein the roof side skeleton portion having a closed cross section formed by joining the roof side outer member and the roof side inner member has a bent portion formed by the roof side inner member, thereby The space on the side is widened. For example, a safety device or the like can be disposed in the space expanded by the bent portion.

  Here, in the present roof side structure, since the roof side skeleton part connects both side portions of the bent part of the roof side inner member, the roof side skeleton in a direction in which the bending angle of the bent part increases or decreases depending on the bending rigidity of the reinforcing member. The cross-sectional deformation of the part is suppressed. Thereby, the cross-sectional deformation | transformation of a roof side frame | skeleton part can be suppressed in the structure by which the bending part was formed in the roof side inner member.

  Thus, in the roof side structure according to the fourth aspect, the deformation of the cross section of the roof side skeleton portion can be suppressed. Thereby, it becomes possible to effectively suppress the sound generation of the roof panel resulting from the cross-sectional deformation of the roof side skeleton portion of the roof side.

  A roof side structure according to a fifth aspect of the present invention is the roof side structure according to the fourth aspect, wherein the reinforcing member is connected to both side portions of the bent portion outside the roof side skeleton portion.

  In the roof side structure according to claim 5, since the both sides of the bent portion are connected by the reinforcing member on the concave side of the bent portion of the roof side inner member, the bending prevention effect of the bent portion is high. Further, since the reinforcing member is located outside the roof side skeleton, the degree of freedom in setting the joining (connecting) portion of the reinforcing member is high.

  As described above, the roof side structure according to the present invention has an excellent effect that the cross-sectional deformation of the roof side skeleton portion can be suppressed.

  A roof side structure 10 according to a first embodiment of the present invention will be described with reference to FIGS. In the figure, the arrow FR indicates the forward direction in the vehicle longitudinal direction, the arrow UP indicates the upward direction in the vehicle vertical direction, and the arrow IN indicates the inner side in the vehicle width direction.

  The roof side structure 10 is shown by front sectional drawing by FIG. 2A shows a side view of the roof side structure 10 viewed from the inside of the vehicle body with the roof side inner panel 20 described later removed, and FIG. 2B shows the roof side structure. The roof side structure 10 viewed from the inside of the vehicle body with the inner panel 20 removed is shown in a perspective view. As shown in these drawings, the roof side structure 10 includes a roof side rail 12 as a roof side frame portion. The roof side rail 12 is elongated in the front-rear direction, and the outer end in the vehicle width direction of the roof panel 14 is fixed. The center part in the front-rear direction is connected to the upper end of the center pillar 16 that forms the vertical skeleton of the vehicle body. . This will be specifically described below.

  As shown in FIG. 1, the roof side rail 12 has a closed cross-sectional structure in a cross section orthogonal to the front-rear direction by joining a roof side outer panel 18 and a roof side inner panel 20. More specifically, in the roof side outer panel 18, the outer end in the vehicle width direction of the upper wall 18A and the lower wall 18B is connected by the side wall 18C and opens inward in the vehicle width direction, and the upper wall 18A From the inner end in the vehicle width direction, an upper flange 18D extends inward in the vehicle width direction, and a lower flange 18E is suspended from the opening edge of the lower wall 18B.

  The roof side inner panel 20 is formed with a bent portion 20C protruding outward (upward) in the vehicle width direction between the upper wall 20A and the side wall 20B, and from the inner end in the vehicle width direction of the upper wall 20A to the upper flange 20D extends inward in the vehicle width direction, and a lower flange 20E extends downward from the lower end of the side wall 20B.

  The roof side rail 12 has an upper flange 18D of the roof side outer panel 18 and an upper flange 20D of the roof side inner panel 20 overlapped and joined together, and a lower flange 18E of the roof side outer panel 18 and a lower flange of the roof side inner panel 20 By overlapping and joining 20E, a closed cross-sectional structure is formed in which the inward opening in the vehicle width direction of the roof side outer panel 18 is closed by the upper wall 20A and the side wall 20B of the roof side inner panel 20. . In this embodiment, the step 20F is formed between the upper wall 20A and the upper flange 20D, so that the upper wall 20A is separated (opposed) from the upper wall 18A. In this embodiment, the upper end of the pillar inner panel 24 constituting the center pillar 16 is sandwiched between the lower flanges 18E and 20E.

  The center pillar 16 has a closed cross-sectional structure in a cross section perpendicular to the vertical direction by joining the pillar outer panel 22 and the pillar inner panel 24 together. The upper end portion 22A of the pillar outer panel 22 is joined to the lower wall 18B and the side wall 18C of the roof side outer panel 18, and the upper end portion 24A of the pillar inner panel 24 is wound on the lower flanges 18E and 20E of the roof side rail 12 as described above. The three sheets are joined together in an overlapped state.

  Further, as shown in FIG. 1, the roof side rail 12 and the center pillar 16 are covered with a side outer panel 26 from the outside (mainly in the vehicle width direction outside or above). In the side outer panel 26, a flange 26A extending inward in the vehicle width direction from the vicinity of the upper end thereof is overlaid on the upper flange 18D, and the side flange 14A of the roof panel 14 is overlaid on the flange 26A. Yes. The flanges 26A and the side flanges 14A are joined together with the upper flange 18D and the upper flange 20D in a superposed state.

  The roof panel 14 including the roof side structure 10 described above is covered with a roof lining 30 from the passenger compartment side. As shown in FIG. 1, between the roof lining 30 and the roof side rail 12 (roof side inner panel 20), the main configuration of the curtain airbag device 32, which is a safety device against side collision and rollover of the vehicle. Elements are arranged. In this embodiment, an airbag bag body 34 that expands along the side window when the gas is supplied into the roll folded inside, and an inflator 36 that operates to supply gas to the airbag bag body 34 include: It is disposed between the roof lining 30 and the roof side rail 12.

  The roof side rail 12 secures a space in which the curtain airbag device 32 is disposed between the roof side rail 12 and the roof lining 30 by forming the bent portion 20 </ b> C described above in the roof side inner panel 20. A reinforcing member 38 is disposed in the roof side rail 12. In this embodiment, the reinforcing member 38 bridges the upper wall 18A and the lower wall 18B of the roof side outer panel 18.

  More specifically, as shown in FIGS. 2 (A) and 2 (B), the reinforcing member 38 includes a column portion 40 that is substantially elongated in the vertical direction of the vehicle body, and a vehicle width direction from the upper end of the column portion 40. The upper flange 42 extends inward and joined to the upper flange 18D, and the lower flange 44 extends inward in the vehicle width direction from the lower end of the column portion 40 and joined to the lower flange 18E. In this embodiment, the reinforcing member 38 includes an upper portion and a lower portion of a pair of front and rear column portions 40 that are substantially U-shaped in a plan sectional view that opens inward in the vehicle width direction. An upper flange 42 and a lower flange 44 are extended from the portion 40. Each upper flange 42 has a U-shaped cross section that opens downward, and each lower flange 44 has a U-shaped cross section that opens upward. Each part of the reinforcing member 38 described above is integrally formed by press molding.

  The reinforcing member 38 is disposed within the range of the width of the center pillar 16 (width in the longitudinal direction of the vehicle body) (along the extended line of the center pillar 16). As shown in FIG. 1, the reinforcing member 38 is disposed on the inner side in the vehicle width direction than the centroid P of the roof side rail 12. In other words, the reinforcing member 38 that spans the upper wall 18A and the lower wall 18B (intervenes between the upper wall 18A and the lower wall 18B) has the upper wall 18A, the lower wall 18B, and the side walls of the roof side outer panel 18. 18C constitutes a closed cross section surrounding the centroid P of the roof side rail 12.

  In addition, each above-mentioned joining site | part is joined by spot welding, respectively.

  Next, the operation of the first embodiment will be described.

  In the roof side structure 10 configured as described above, vehicle engine vibration and vibration from the suspension are transmitted to the roof panel 14 via the center pillar 16 and the roof side rail 12. At this time, in the roof side structure 10, the reinforcing member 38 that bridges the upper wall 18 </ b> A and the lower wall 18 </ b> B of the roof side outer panel 18 at the connection portion of the roof side rail 12 with the center pillar 16 has its in-plane force (axis Force) suppresses the cross-sectional deformation in the direction in which the upper wall 18A and the lower wall 18B are in contact with each other (relative displacement). That is, the reinforcing member 38 suppresses bending at the bent portion 20 </ b> C of the roof side rail 12.

  Thereby, in the roof side structure 10, the vibration amplitude transmitted to the roof panel 14 from the roof side rail 12 is suppressed small (vibration transmission is suppressed), and the sound generation of the roof panel 14 is reduced. In particular, in the roof side structure 10, the reinforcing member 38 bridges the upper wall 18 </ b> A and the lower wall 18 </ b> B at a position where a closed cross section surrounding the centroid P of the roof side rail 12 is formed. The effect of suppressing the deformation of the cross section of the rail 12 is high. Hereinafter, it demonstrates concretely by comparison with a comparative example.

  3A is a front sectional view showing a deformed state of the roof side rail 12 in the roof side structure 10, and FIG. 3B is a roof side in the roof side structure 200 according to the comparative example. The deformation state of the rail 12 is shown in a front sectional view. The roof side structure 200 is configured in the same manner as the roof side structure 10 except that the reinforcing member 38 is not provided. As shown in these drawings, in the roof side structure 200, the bending of the bent portion 20C due to vibration input causes the cross-sectional deformation of the roof side rail 12 (separation between the upper wall 18A and the lower wall 18B) to increase. The vibration amplitude of the panel 14, that is, the pronunciation is increased. On the other hand, in the roof side structure 10, the reinforcement member 38 effectively suppresses contact / separation between the upper wall 18 </ b> A and the lower wall 18 </ b> B, that is, bending at the bent portion 20 </ b> C, thereby suppressing sound generation of the roof panel 14.

  FIG. 4 shows vehicle interior sound (dB) generated by the sound generation of the roof panel 14 of the vehicle to which the roof side structure 10 is applied and vehicle sound generated by the sound generation of the roof panel 14 of the vehicle to which the roof side structure 200 is applied. An example of the numerical analysis result to be compared is shown. From this figure, in the roof side structure 10, compared to the roof side structure 200, the booming noise in the frequency range of about 140 Hz to 150 Hz, which is likely to cause a problem due to transmission of engine vibration, is improved (up to about 4 dB reduction). I understand that.

  As described above, in the vehicle (automobile) provided with the roof side structure 10, the sound generation of the roof panel 14 is effectively suppressed while achieving both designability (freedom) and collision performance (setting of the curtain airbag device 32). I was able to realize that.

  Supplementing the design, for example, as shown in the plan view of FIG. 14A, when the roof side portion 150 is formed to be curved so as to form a continuous arc with the front pillar 152 and the rear pillar 154, Compared to the case where the linear roof side portion 156 as shown in FIG. 14B is adopted, the roof side rail 12 is widened inward in the vehicle width direction, and thus the sound of the roof panel 14 is likely to occur. . Specifically, in the roof side portion 150, the joint W (spot welding) from the bent portion 20C (low rigidity portion of the cross section of the roof side rail 12) of the roof side inner panel 20 shown in FIG. Distance L1 from the base end of the upper flange 20D in the roof side portion 156 shown in FIG. 15B (example in which the bent portion 20C is not required in the narrow roof side portion 156) to the joining point W. 15A and 15B, the deformation of the cross section of the roof side rail 12 is increased as shown in FIG. 15A and FIG. The transmitted vibration amplitude tends to increase. As measures to suppress the vibration of the roof panel 14, it is conceivable to add an adhesive type damping sheet to the roof panel 14 or to set a dynamic damper to the vibration source (engine, suspension, etc.). When the cross-sectional deformation of the rail 12 becomes the main factor of sound generation of the roof panel 14, the vibration damping sheet added to the roof panel 14 cannot provide a sufficient sound generation suppression effect, and the dynamic damper needs to secure an installation space. Moreover, it also causes an increase in vehicle weight (deterioration of fuel consumption).

  In the roof side structure 10, by providing the reinforcing member 38 on the roof side portion 150, the cross-sectional deformation of the roof side rail 12 can be suppressed without depending on the vibration damping sheet or the dynamic damper, and the sound of the roof panel 14 can be effectively generated. Therefore, it is possible to adopt a structure that is curved so as to be continuous with the front pillar 152 and the rear pillar 154 as described above, and the design is improved.

  In addition, supplementing the collision performance, it was possible to secure a space for arranging the curtain airbag device 32 between the roof lining 30 and the roof side inner panel 20 by setting the bent portion 20C. For example, the roof side structure 210 according to the comparative example shown in FIG. 16 has a roof side inner panel 214 in which a substantially flat wall portion 212 is formed between the upper flange 20D and the lower flange 20E. As described above, the roof side rail 12 constituted by the roof side inner panel 214 and the roof side outer panel 18 that do not have the bent portion 20C is less likely to be deformed in cross section, but the space for installing the curtain airbag device 32 (inflator 36). It is difficult to secure a space for preventing interference between the roof side rail 12 and the curtain airbag device 32 at the time of a side collision, and the roof side structure 210 cannot be adopted.

  In the roof side structure 10, in the roof side rail 12 in which the bent portion 20 </ b> C is formed on the roof side inner panel 20, the reinforcing member 38 suppresses the cross-sectional deformation of the roof side rail 12, and therefore the arrangement of the curtain airbag device 32 is arranged. A space for preventing interference between the space and the curtain airbag device 32 and the roof side rail 12 is secured, and the required collision performance can be obtained.

  On the other hand, as shown in FIG. 17, as a configuration for suppressing the sound generation of the roof panel 14 while ensuring the design and the collision performance, the upper wall 18 </ b> A of the roof side outer panel 18 and the side wall 20 </ b> B of the roof side inner panel 20 are supported by the reinforcing member 222. A roof side structure 220 according to a comparative example in which are connected to each other is also conceivable. However, in the configuration according to the present embodiment and the comparative example in which the roof side inner panel 20 is joined to the roof side outer panel 18 joined to the side outer panel 26, welding joining between the upper wall 18A and the reinforcing member 222, and reinforcing the side wall 20B. One of the welding joints with the member 222 cannot be performed, and the roof side structure 220 does not hold.

  In the roof side structure 10, since the reinforcing member 38 can be joined to the roof side outer panel 18 before joining to the side outer panel 26, the function of suppressing sound generation of the roof panel 14 is realized while ensuring design and collision performance. We were able to.

(Other embodiments)
Next, another embodiment of the present invention will be described. In addition, about the components / parts basically the same as the first embodiment or the configuration described above, the same reference numerals as those of the first embodiment or the configuration described above are attached, and the description thereof is omitted. Further, the illustration may be omitted.

(Second Embodiment)
FIG. 5 (A) shows a roof side structure 50 according to the second embodiment of the present invention in a side view corresponding to FIG. 2 (A), and FIG. The structure 50 is shown in a perspective view corresponding to FIG. As shown in these drawings, the roof side structure 50 includes a pair of front and rear reinforcing members 52 positioned outside the width range of the center pillar 16 instead of the reinforcing member 38 disposed within the width range of the center pillar 16. Is different from the roof side structure 10 according to the first embodiment.

  Each reinforcing member 52 includes a column portion 54 that is substantially elongated in the vertical direction of the vehicle body, an upper flange 56 that extends inward in the vehicle width direction from the upper end of the column portion 54, and is joined to the upper flange 18 </ b> D, and the column portion 54. And a lower flange 58 that extends inward in the vehicle width direction and is joined to the lower flange 18E. In this embodiment, each column portion 54 has a substantially U shape in a plan sectional view that opens inward in the vehicle width direction, and each upper flange 56 has a U shape section that opens downward, Each lower flange 58 has a U-shaped cross section that opens upward. Each portion of each reinforcing member 52 is integrally formed by press molding.

  Although not shown, each column portion 54 is located on the inner side in the vehicle width direction with respect to the centroid P of the roof side rail 12. Other configurations of the roof side structure 50 are substantially the same as the corresponding configurations of the roof side structure 10.

  In the roof side structure 50, the pair of reinforcing members 52 suppress the bending cross-sectional deformation at the bent portion 20 </ b> C of the roof side rail 12. Therefore, also with the roof side structure 50 according to the second embodiment, the sound generation of the roof panel 14 can be suppressed while ensuring the design and the collision performance, similarly to the roof side structure 10 according to the first embodiment. .

(Third embodiment)
FIG. 6 (A) shows a roof side structure 60 according to the third embodiment of the present invention in a side view corresponding to FIG. 2 (A), and FIG. 6 (B) shows the roof side structure. The structure 60 is shown in a perspective view corresponding to FIG. As shown in these drawings, the roof side structure 60 includes a reinforcing member 62 positioned beyond the width range of the center pillar 16 in place of the reinforcing member 38 disposed within the width range of the center pillar 16. Thus, the roof side structure 10 according to the first embodiment is different.

  The reinforcing member 62 includes a column portion 64 that is substantially elongated in the vertical direction of the vehicle body, an upper flange 66 that extends inward in the vehicle width direction from the upper end of the column portion 64 and is joined to the upper flange 18D, and The lower flange 68 extends inward in the vehicle width direction from the lower end and is joined to the lower flange 18E. In this embodiment, each column portion 64 has a substantially wave shape in plan sectional view in which portions 64A that open inward in the vehicle width direction and portions 64B that open outward in the vehicle width direction are alternately formed in the vehicle longitudinal direction. The upper and lower flanges 66 and 68 are substantially corrugated in a side view corresponding to each column part 64. Each portion of each reinforcing member 62 is integrally formed by press molding.

  The reinforcing member 62 has a length in the front-rear direction that is greater than the width of the center pillar 16 (the width in the front-rear direction of the vehicle body), and the front-rear ends 62A and 62B are positioned on the outer side in the width direction of the center pillar 16. Has been placed. Although not shown, each column portion 64 is positioned on the inner side in the vehicle width direction with respect to the centroid P of the roof side rail 12. Other configurations of the roof side structure 60 are substantially the same as the corresponding configurations of the roof side structure 10.

  In the roof side structure 60, the pair of reinforcing members 62 suppress the bending cross-sectional deformation at the bent portion 20 </ b> C of the roof side rail 12. Therefore, similar to the roof side structure 10 according to the first embodiment, the roof side structure 60 according to the third embodiment can suppress the sound generation of the roof panel 14 while ensuring the design and the collision performance. .

(Fourth embodiment)
7 shows a roof side structure 70 according to a fourth embodiment of the present invention in a front sectional view corresponding to FIG. As shown in this figure, the roof side structure 70 has a lower end joined to the lower flange 18E of the roof side outer panel 18 instead of the reinforcing member 38 having the lower flange 44 joined to the lower wall 18B. Is different from the roof side structure 10 according to the first embodiment.

  The reinforcing member 72 includes a column portion 40 located on the inner side in the vehicle width direction with respect to the centroid P of the roof side rail 12, an upper flange 42, and a lower flange extending from the lower end of the column portion 40 and joined to the lower flange 18E. 74. The reinforcing member 72 may be configured by providing a lower flange 74 instead of the lower flange 58 of each reinforcing member 52, or may be configured by providing the lower flange 74 instead of the lower flange 68 of the reinforcing member 62. Also good. Other configurations of the roof side structure 70 are substantially the same as the corresponding configurations of the roof side structure 10.

  In the roof side structure 70, the pair of reinforcing members 72 suppress the bending cross-sectional deformation at the bent portion 20 </ b> C of the roof side rail 12. Therefore, similar to the roof side structure 10 according to the first embodiment, the roof side structure 70 according to the fourth embodiment can suppress the sound generation of the roof panel 14 while ensuring the design and the collision performance. .

(Fifth embodiment)
8 shows a roof side structure 80 according to a fifth embodiment of the present invention in a front sectional view corresponding to FIG. 9A shows the roof side structure 80 in a side view, and FIG. 9B shows the roof side structure 80 in a perspective view. As shown in these drawings, the roof side structure 80 includes a partition-shaped reinforcing member 82 that partitions the inside of the roof side outer panel 18 in the longitudinal direction of the vehicle body instead of the reinforcing member 38 that bridges the upper wall 18A and the lower wall 18B. Is different from the roof side structure 10 according to the first embodiment.

  The reinforcing member 82 is provided integrally with the reinforcement 84 in the outer panel for reinforcing the roof side rail 12 against bending in the longitudinal direction. The inner reinforcement 84 in the outer panel is elongated in the longitudinal direction of the vehicle body, and the upper wall 84A, the lower wall 84B, and the side wall 84C are overlapped and joined to the inner surfaces of the upper wall 18A, the lower wall 18B, and the side wall 18C of the roof side outer panel 18, respectively. And is open inward in the vehicle width direction. By providing this outer panel reinforcement 84, the bending of the roof side rail 12 at the time of a side collision is suppressed, and the side collision performance is improved.

  The reinforcing member 82 has a pair of front and rear portions formed by bending both ends of the reinforcing member 82 in the longitudinal direction, and a bulkhead portion 85 extending along a plane substantially orthogonal to the longitudinal direction of the inner panel reinforcement 84. The upper flange 86 is extended from the upper edge of the bulkhead portion 85 and joined to the upper wall 84A, and the lower flange 88 is extended from the lower edge of the bulkhead portion 85 and joined to the upper wall 84B. Has been. Therefore, the reinforcing member 82 is joined to the roof side outer panel 18 via the outer panel inner reinforcement 84 and bridges the upper wall 18A and the lower wall 18B (intervened between the upper wall 18A and the lower wall 18B). is doing).

  As shown in FIG. 8, the edge portion 85 </ b> A that is the inner edge in the vehicle width direction of the bulkhead portion 85 is located on the inner side in the vehicle width direction with respect to the centroid P of the roof side rail 12. In other words, the reinforcing member 82 bridges the upper wall 18A and the lower wall 18B on the inner side in the vehicle width direction with respect to the centroid P of the roof side rail 12. As shown in FIGS. 9A and 9B, in this embodiment, the reinforcing member 82 is located outside the center pillar 16 in the width direction. Other configurations of the roof side structure 80 are substantially the same as the corresponding configurations of the roof side structure 10.

  In the roof side structure 80, the pair of reinforcing members 82 suppress the bending cross-sectional deformation at the bent portion 20 </ b> C of the roof side rail 12. Therefore, similar to the roof side structure 10 according to the first embodiment, the roof side structure 80 according to the fifth embodiment can suppress the sound generation of the roof panel 14 while ensuring the design and the collision performance. . Further, in the roof side structure 80, since the reinforcement member 82 is provided integrally with the reinforcement 84 in the outer panel provided as an existing part in the applied vehicle, it is possible to suppress the sound generation of the roof panel 14 without increasing the number of parts. .

  In the fifth embodiment, the example in which the reinforcing member 82 is integrated with the outer panel reinforcement 84 has been described. However, the present invention is not limited to this example. For example, the reinforcing member 82 is connected to the outer panel reinforcement 84. The reinforcing member 82 may be provided in an automobile that does not include the outer panel reinforcement 84. In these cases, the upper flange 86 may be joined to the upper wall 18A and the lower flange 88 may be joined to the lower wall 18B. In these cases, the number of the reinforcing members 82 can be set to one or three or more, or the reinforcing members 82 (at least a part thereof) can be arranged within the width of the center pillar 16. is there.

(Sixth embodiment)
10 shows a roof side structure 90 according to a sixth embodiment of the present invention in a front sectional view corresponding to FIG. As shown in this figure, the roof side structure 90 includes both sides of the roof side inner panel 20 that straddle the bent portion 20C instead of the reinforcing member 38 that connects the upper wall 18A and the lower wall 18B in the roof side rail 12. It differs from the roof side structure 10 according to the first embodiment in that it includes a reinforcing member 92 that connects the two.

  The reinforcing member 92 is provided on the outer side (vehicle width direction inner side) of the roof side rail 12, and connects (hangs) the upper wall 20A and the side wall 20B of the roof side inner panel 20 constituting the roof side rail 12 to each other. Yes. Specifically, in the reinforcing member 92, an upper flange 96 extending from the upper end of the column portion 94 is joined to the upper wall 20A, and a lower flange 98 extending from the lower end of the column portion 94 is connected to the side wall 20B. In this state, the column portion 94, the upper wall 20A, and the side wall 20B form a closed cross section (a triangular frame having the bent portion 20C as one apex).

  Therefore, the roof side structure 90 is configured to have high rigidity against bending of the bent portion 20C (relative angular displacement between the upper wall 20A and the side wall 20B) mainly using the bending rigidity of the reinforcing member 92, in other words, the roof side rail. A configuration in which twelve cross-sectional deformations hardly occur is realized. Other configurations of the roof side structure 90 are substantially the same as the corresponding configurations of the roof side structure 10.

  In the roof side structure 90, the reinforcing member 92 suppresses bending section deformation at the bent portion 20 </ b> C of the roof side rail 12. Therefore, similar to the roof side structure 10 according to the first embodiment, the roof side structure 90 according to the sixth embodiment can suppress the sound generation of the roof panel 14 while ensuring the design and the collision performance. .

(Seventh embodiment)
FIG. 11 is a front sectional view corresponding to FIG. 1 showing a roof side structure 100 according to a seventh embodiment of the present invention. As shown in this figure, the roof side structure 100 includes a reinforcing member 102 having an upper end joined to the upper flange 20D of the roof side inner panel 20 in place of the reinforcing member 92 having the upper flange 96 joined to the upper wall 20A. Is different from the roof side structure 90 according to the sixth embodiment.

  In the reinforcing member 102, an upper flange 106 extended from the upper end of the column portion 104 is joined to the upper flange 20D, and a lower flange 98 extended from the lower end of the column portion 104 is joined to the side wall 20B. In this state, the pillar section 104 and the roof side inner panel 20 form a closed section. Other configurations of the roof side structure 100 are substantially the same as the corresponding configurations of the roof side structure 90.

  In the roof side structure 100, the reinforcing member 102 suppresses bending section deformation at the bent portion 20 </ b> C of the roof side rail 12. Therefore, also by the roof side structure 100 according to the seventh embodiment, the design and the collision performance are the same as the roof side structure 90 according to the sixth embodiment (that is, the roof side structure 10 according to the first embodiment). The sound of the roof panel 14 can be suppressed while ensuring the above.

(Eighth embodiment)
FIG. 12 is a front sectional view corresponding to FIG. 1 showing a roof side structure 110 according to an eighth embodiment of the present invention. In FIG. 13, the roof side structure 110 is shown in perspective. As shown in these drawings, the roof side structure 80 is the sixth embodiment in that the roof gusset 114 that connects the roof side rail 12 and the roof reinforcement 112 has the function of the reinforcing member in the present invention. It differs from the roof side structure 90 which concerns on a form.

  The roof gusset 114 connects the end portion in the vehicle width direction of the roof reinforcement 112, which is a skeleton member along the vehicle width direction of the roof, and the upper end of the roof side rail 12, that is, the center pillar 16, so that the roof at the time of a side collision. It is grasped as a reinforcing member for suppressing the bending of the connecting portion between the side rail 12 and the center pillar 16 and reducing the amount of the center pillar 16 entering the passenger compartment. In this embodiment, the roof gusset 114 is formed in a substantially L shape when viewed from the front, and the roof side inner panel 20 is formed by spot welding at the roof side joint 116 along the substantially vertical direction on the outer end side in the vehicle width direction. And a reinforcement fastening portion 118 located at the inner end portion in the vehicle width direction is fastened to the roof reinforcement 112 by a fastener 119 (bolt nut or the like).

  In the roof gusset 114 in this embodiment, a reinforcing flange portion 120 positioned between the roof side joint portion 116 and the reinforcement fastening portion 118 is joined to the upper wall 20A by spot welding. In addition, "x" of FIG. 13 has shown the spot of spot welding in the principal part of this invention. Accordingly, the roof gusset 114 connects the upper wall 20A and the side wall 20B across the bent portion 20C at the roof side joint portion 116 and the reinforcing flange portion 120.

  To further supplement the roof gusset 114, the roof gusset 114 has a skeleton forming portion 122 that opens outward in the vehicle width direction from the roof side joint portion 116 to the reinforcing flange portion 120, and is arranged in front and back. Are connected by a connecting portion 124. Joining flanges 126 are respectively formed on the outer sides in the front-rear direction of the front and rear framework forming portions 122, and the roof gusset 114 is joined to the upper wall 20A and the side walls 20B at the joining flange 126. Further, a portion from the reinforcing flange portion 120 to the reinforcement fastening portion 118 is also formed into a three-dimensional shape so as to ensure a required rigidity. Other configurations of the roof side structure 110 are substantially the same as the corresponding configurations of the roof side structure 90.

  In the roof side structure 110, the roof gusset 114 suppresses bending cross-sectional deformation at the bent portion 20C of the roof side rail 12. Therefore, also by the roof side structure 110 according to the eighth embodiment, the design and the collision performance are the same as the roof side structure 90 according to the sixth embodiment (that is, the roof side structure 10 according to the first embodiment). The sound of the roof panel 14 can be suppressed while ensuring the above. Further, in the roof side structure 110, by setting the reinforcing flange portion 120 (joining portion with the upper wall 20A) in the roof gusset 114 provided in the applied automobile as an existing component, the roof panel 14 is not increased in number of components. Realized to suppress pronunciation.

  In the sixth to eighth embodiments, the portions of the roof side inner panel 20 that straddle the bent portion 20 </ b> C so that the reinforcing members 92 and 102 and the roof gusset 114 form a closed cross section with the roof side inner panel 20. In these embodiments that mainly use the bending rigidity of the reinforcing member 92, the reinforcing member 92 and the like have a bent portion corresponding to the bent portion 20C, and the roof side inner The panel 20 may be configured to be in contact with each other, and the both sides straddling the bent portion 20 </ b> C may be connected by a reinforcing member whose thickness direction is matched with the longitudinal direction of the vehicle body like the reinforcing member 82.

It is front sectional drawing which shows the roof side structure which concerns on the 1st Embodiment of this invention. It is a figure which removes a roof side inner panel and shows the roof side structure concerning a 1st embodiment of the present invention, and (A) is a side view and (B) is a perspective view. (A) Front sectional drawing which shows the deformation | transformation state of the roof side rail which comprises the roof side structure which concerns on 1st Embodiment of this invention, (B) is the roof side rail which comprises the roof side structure which concerns on a 1st comparative example. It is front sectional drawing which shows the deformation | transformation state. It is a diagram which shows the analysis result of the compartment sound level based on the roof vibration of the motor vehicle to which the roof side structure which concerns on 1st Embodiment of this invention was applied. It is a figure which removes a roof side inner panel and shows a roof side structure concerning a 2nd embodiment of the present invention, and (A) is a side view and (B) is a perspective view. It is a figure which removes a roof side inner panel and shows a roof side structure concerning a 3rd embodiment of the present invention, and (A) is a side view and (B) is a perspective view. It is front sectional drawing which shows the roof side structure which concerns on the 4th Embodiment of this invention. It is front sectional drawing which shows the roof side structure which concerns on the 5th Embodiment of this invention. It is a figure which removes a roof side inner panel and shows a roof side structure concerning a 5th embodiment of the present invention, and (A) is a side view and (B) is a perspective view. It is front sectional drawing which shows the roof side structure which concerns on the 6th Embodiment of this invention. It is front sectional drawing which shows the roof side structure which concerns on the 7th Embodiment of this invention. It is front sectional drawing which shows the roof side structure which concerns on the 8th Embodiment of this invention. It is a figure which removes a roof side inner panel and shows a roof side structure concerning an 8th embodiment of the present invention, and (A) is a side view and (B) is a perspective view. (A) is a top view which shows the roof side part of the motor vehicle in which the roof side structure which concerns on embodiment of this invention can be applied, (B) is the roof side which has a shape different from the roof side part shown to FIG. 14 (A). It is a top view which shows a part. 14A is a front sectional view schematically showing the sounding state of the roof side portion shown in FIG. 14A, and FIG. 14B is a front sectional view schematically showing the sounding state of the roof side portion shown in FIG. FIG. It is front sectional drawing which shows the 2nd comparative example with embodiment of this invention. It is front sectional drawing which shows the 3rd comparative example with embodiment of this invention.

Explanation of symbols

10 Roof side structure 12 Roof side rail (roof side frame)
14 Roof Panel 16 Center Pillar 18 Roof Side Outer Panel (Roof Side Outer Member)
18A Upper wall 18B Lower wall 18C Side wall 18E Lower flange (flange)
20 Roof side inner panel (Roof side inner member)
20C Bent part 38 Reinforcement member 50/60/70/80/90/100/110 Roof side structure 52/62/72/82/92/102 Reinforcement member 84 Reinforcement in outer panel 114 Roof gusset (reinforcement member)

Claims (5)

A roof side outer member formed by connecting an upper wall and a lower wall, which are each elongated in the longitudinal direction of the vehicle body, at the outer end in the vehicle width direction by a side wall;
A roof side inner member which is joined to an opening side facing the vehicle width direction inside of the roof side outer member and forms a roof side skeleton portion having a closed cross-sectional structure connected to the center pillar and the roof panel with the roof side outer member; ,
A flange disposed in the roof side outer member and extending from a portion of the upper wall spaced from the side wall, a portion of the lower wall spaced from the side wall, or a lower opening end of the roof side outer member And a reinforcing member across
Roof side structure with   The reinforcing member spans a portion of the upper wall spaced from the side wall and a portion of the lower wall spaced from the side wall or the flange on the inner side in the vehicle width direction with respect to the centroid of the roof side skeleton. The roof side structure according to claim 1.   The reinforcing member is formed by bending an end portion in the vehicle body front-rear direction of the reinforcement in the outer panel overlapped with an inner surface of the roof side outer member, and the upper portion is defined so as to partition the interior of the roof side outer member in the vehicle body front-rear direction. The roof side structure according to claim 1 or 2, wherein the roof side structure is interposed between the wall and the lower wall. A roof side outer member that opens inward in the vehicle width direction and is elongated in the longitudinal direction of the vehicle body;
Closed-section roof joined to the opening side of the roof side outer member on both sides of the inwardly bent portion of the roof side outer member and connected to the center pillar and the roof panel with the roof side outer member A roof side inner member forming a side skeleton,
Reinforcing members respectively connected to both side portions of the bent portion of the roof side inner member;
Roof side structure with   The roof side structure according to claim 4, wherein the reinforcing member is connected to both side portions of the bent portion outside the roof side skeleton portion.

Images