JP3659006B2 - Side roof rail structure of vehicle - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a side roof rail structure of a vehicle.
[0002]
[Prior art]
As a conventional side roof rail structure of a vehicle, for example, there is a structure known in Japanese Patent Laid-Open No. 10-29558. That is, side roof rails as front and rear direction skeleton members are respectively arranged on the left and right sides of the vehicle roof panel. The side roof rail has a closed cross-sectional structure formed by joining a rail inner and a rail outer, and a roof trim for covering the side roof rail is arranged at a predetermined interval on the vehicle interior side of the side roof rail. Has been.
[0003]
The rail inner is welded with a bracket having a substantially hat-shaped cross section whose top surface is close to the roof trim. Since such a bracket is provided, the roof trim does not move even if it is pushed from the vehicle interior side, and the stability of the roof trim is improved. In addition, since a notch is formed on the side surface of the bracket, when the input is applied to the roof trim from the vehicle interior side, the side surface of the bracket is easily buckled and deformed to reduce the input energy. Can absorb enough.
[0004]
[Problems to be solved by the invention]
However, in such a conventional technique, the structure that welds the bracket to the rail inner before the rail inner and the rail outer are welded and joined in separate body side forming processes on the left and right sides, the member that joins the rail inner. However, if there are other members to be joined to the rail inners on both sides, the bracket to be placed on the inner side of the vehicle interior from the members is welded to the rail inner for the above purpose. It becomes difficult to install.
[0005]
For example, in order to improve the side impact performance of a vehicle, there are cases where a center reinforcement along the vehicle interior is provided in the front and rear center of the roof panel. Both ends of the center reinforcement are joined to rail inners on both sides. Therefore, in the case of a vehicle body structure provided with such a center reinforcement, the center reinforcement cannot be welded to the rail inner and the bracket cannot be attached to the rail inner by welding in the conventional body side forming process.
[0006]
Further, when such a center reinforcement is provided, it is necessary to form a deep notch on the side surface of the bracket in order to avoid interference with the center reinforcement. For this reason, the formation of the notch part reduces the shape retention of the bracket and makes it easier to twist the bracket.
[0007]
Furthermore, the bracket is pressed against the center reinforcement by the input applied from the vehicle interior side. However, when the bracket is pressed against the center reinforcement, the input energy must be stably absorbed. However, a structure that can stably absorb the input energy has not yet been proposed in relation to the center reinforcement.
[0008]
The present invention has been made by paying attention to such a conventional technique. Even if the center reinforcement is in a positional relationship where it interferes with the bracket, the bracket can be easily mounted, has excellent shape stability, and has stable energy. The side roof rail structure of the vehicle which can aim at absorption of this is provided.
[0009]
[Means for Solving the Problems]
According to the first aspect of the present invention, side roof rails formed in a closed cross section with a rail inner and a rail outer are provided along the front-rear direction on the left and right sides of a roof panel provided with a center reinforcement along the vehicle width direction at the front-rear center. A roof trim is arranged at a predetermined interval on the inner side of the rail inner, and the rail inner has a top surface adjacent to the roof trim, and a side surface bent from both ends of the top surface to the rail inner side. A side wall of the vehicle in which a bracket is formed which is partially formed at an edge of the side surface and is attached to the rail inner by fastening means, and a plurality of notches are formed on the side surface of the bracket along the front-rear direction. A roof rail structure in which a center reinforcement is passed through a notch formed on a side surface of the bracket, and the center reinforcement is passed through. Of the notch to be, provided with a clearance between at least the upper notch of the edge and the center reinforcement is obtained by forming bending a flange at least on said edge portion.
[0010]
According to the first aspect of the present invention, since the bracket is attached to the rail inner by the fastening means, the bracket can be easily attached compared to the conventional welding method even if the center reinforcement is in a positional relationship where it interferes with the bracket. is there. In addition, since a clearance is provided between at least the edge of the upper notch and the center reinforcement among the notches passing through the center reinforcement, an obliquely upward input is applied to the roof trim from the vehicle interior side. In this case, the side surface of the bracket can be easily buckled and deformed while falling down, so that the input energy can be sufficiently absorbed. Furthermore, since the flange is bent at least at the edge of the upper notch, even if the above-described clearance is secured, the bracket is prevented from being twisted and the shape retention is improved. In addition, by forming such a flange, a stable reaction force can be obtained when the bracket is buckled and the flange hits the center reinforcement.
[0011]
According to the second aspect of the present invention, the lower mounting piece of the bracket is attached to the rail inner by fastening means whose head is close to the roof trim.
[0012]
According to the second aspect of the present invention, since the head of the fastening means is close to the roof trim, even if the roof trim is pushed from the vehicle interior side, it does not move and a sense of stability is good.
[0013]
According to a third aspect of the present invention, other brackets are connected to the front and rear of the bracket, and an insertion portion to be inserted into the end of the other bracket is formed at the front and rear ends of the bracket.
[0014]
According to the third aspect of the present invention, by inserting the insertion portion formed at the end of the bracket corresponding to the center reinforcement with respect to the end of another bracket attached to the front and rear, the bracket Can be temporarily held. Therefore, the bracket can be easily attached by the fastening means.
[0015]
According to a fourth aspect of the present invention, an embossed portion directed toward the roof trim side is provided on the top surface of the bracket.
[0016]
According to the fourth aspect of the present invention, the embossed portion formed on the top surface of the bracket is in a state of being closer to or in contact with the roof trim, so that the stability of the roof trim is further improved.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
A preferred embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a plan view of an automobile roof panel 1 as viewed from above, and FIG. 2 is a perspective view of the interior of the vehicle.
[0018]
A center reinforcement 2 extending in the vehicle width direction is disposed on the lower surface of the roof panel 1 in the front-rear center, and roof bows 3 are provided on the front and rear of the center reinforcement 2, respectively. The center reinforcement 2 is for improving the side collision performance of the automobile, and its end extends to the inside of the center pillar 4 (see FIGS. 1 and 4). Note that reference numeral 5 in FIG. 4 indicates the garnish of the center pillar 4.
[0019]
Further, side roof rails 6 as front and rear direction skeleton members are respectively disposed on the left and right sides of the roof panel 1. The side roof rail 6 has a closed cross-sectional structure in which a rail inner 7 and a rail outer 8 are joined. A rail reinforcement 8 a is provided inside the rail outer 8. Both ends of the roof panel 1 are attached to the rail outer 8 via drip members 9 (see FIGS. 3 and 4).
[0020]
A roof trim 10 for covering and covering the side roof rail 6 is disposed on the side roof rail 6 on the vehicle interior R side. The roof trim 10 is attached to the side roof rail 6 by clip means (not shown). The end of the roof trim 10 is supported by a weather strip 11 provided on a joint flange below the side roof rail 6. In addition, what is shown with the code | symbol 12 in FIG. 3 is a door.
[0021]
And the three brackets 13, 14, and 15 are attached to the rail inner 7 in the side roof rail 6 in a state of being provided continuously along the front-rear direction. Since the brackets 13, 14, and 15 have substantially the same shape, the center bracket 14 will be described below as a representative.
[0022]
The bracket 14 is partially formed on the top surface 16 close to the roof trim 10, side surfaces 17 and 18 bent from both ends of the top surface 16 toward the rail inner 7, and end portions of the side surfaces 17 and 18. And a mounting piece 20 attached to the rail inner 7 with a bolt 19 as a “fastening means”. As shown in FIG. 3, the head of the bolt 19 for attaching the lower mounting piece 20 of the bracket 14 is in a state of being close to the vicinity of the end of the roof trim 10.
[0023]
Further, at both ends of the bracket 14, insertion portions 21 are formed that are displaced inwardly by the thickness of the top surface 16 and the side surfaces 17 and 18. Further, two embossed portions 22 are formed to bulge above the top surface 16. The embossed portion 22 is in contact with the back surface of the roof trim 10.
[0024]
On the upper side surface 17 of the bracket 14, a plurality of cutout portions 23 are formed between the mounting pieces 20, and a deeper cutout portion 23 a is formed in the frontmost cutout portion 23. . A flange 24 bent upward is formed at the edge of the notch 23a. Since such a flange 24 is formed, even if the deep notch 23a is formed, the bracket 14 is prevented from being twisted and the shape retention is improved. The notch 23a is formed at a position corresponding to the center reinforcement 2 described above, and the center reinforcement 2 is located at a portion corresponding to the notch 23a with respect to the rail inner 7 by the bolt / nut means 25. (See FIG. 4).
[0025]
Notch portions 26 are also formed between the mounting pieces 20 on the lower side surface 18. Therefore, with the bracket 14 attached to the rail inner 7, clearances C1 and C2 are formed between the edges of the upper and lower notches 23 and 26 and the rail inner 7, as shown in FIG.
[0026]
Then, as shown in FIG. 4, the center reinforcement 2 penetrates through the notch 23a formed deeper than the other notch 23 and the lower notch 26 corresponding to the notch 23a. A predetermined clearance C3 is also secured between the deep notch 23a and the center reinforcement 2.
[0027]
Next, how to attach the bracket 14 in this embodiment will be described. First, brackets 13 and 15 other than the central bracket 14 corresponding to the center reinforcement 2 are attached to the rail inner 7. Since these brackets 13 and 15 are not in a positional relationship that interferes with the center reinforcement 2, they can be easily attached.
[0028]
Then, the bracket 14 corresponding to the center reinforcement 2 is set so that the notch 23a covers the center reinforcement 2, and then the insertion parts 21 at both ends thereof are attached to the front and rear brackets 13 previously attached. , 15 into the temporary holding state. Thereafter, the attachment piece 20 of the bracket 14 is attached in full scale with the bolts 19.
[0029]
Thus, since the bracket 14 corresponding to the center reinforcement 2 can be temporarily held with respect to the brackets 13 and 15 attached previously, full-scale attachment is facilitated by the bolts 19. Further, since the bracket 14 is attached to the rail inner 7 with the bolts 19, the bracket 14 can be easily attached compared to the conventional welding method even if the center reinforcement 2 is in a positional relationship where it interferes with the bracket 14. .
[0030]
The mounted bracket 14 has a general portion of the top surface 16 close to the roof trim 10, an embossed portion 22 formed on the top surface 16 abuts the roof trim 10, and a head portion of the bolt 19. Because the roof trim 10 is close to the vicinity of the terminal, even if the passenger is pushed by the passenger's hand when getting on and off, the roof trim 10 is supported by the bracket 14 and the bolt 19 so that it does not move and is stable. Is good.
[0031]
Next, an operation when the diagonally upward input F is applied to the roof trim 10 from the vehicle interior R side will be described. When the input F acts on the roof trim 10, the input F is immediately transmitted to the top surface 16 of the bracket 14. When the input F is applied to the top surface 16, the input F is applied to the side surfaces 17 and 18. A plurality of notches 23, 23a, and 26 are formed on the side surfaces 17 and 18, and clearances C1, C2, and C3 are secured for the rail inner 7 and the center reinforcement 2, respectively. Buckling deformation while falling upward. Accordingly, the top surface 16 and the roof trim 10 move upward along with the buckling deformation of the side surfaces 17 and 18, and the energy of the input F can be sufficiently absorbed during that time. Further, since the flange 24 is formed at the edge of the notch 23a corresponding to the center reinforcement 2, when the bracket 14 buckles and the flange 24 hits the center reinforcement 2, a stable reaction force is obtained. It is done.
[0032]
The deformation modes of the side surfaces 17 and 18 can be easily controlled by adjusting the size of the notches 23, 23a, and 26. Therefore, in the case of this embodiment, in the shape of the bracket 14 (cross-sectional size, plate thickness, etc.), the optimal sizes of the notches 23, 23a, and 26 for absorbing the energy of the input F are set. .
[0033]
In the above embodiment, the clearances C1, C2, and C3 are respectively secured in the upper and lower cutout portions 23, 23a, and 26 of the bracket 14, but at least the upper clearances 23 and 23a are secured. Then, the energy of the input F can be absorbed by the buckling deformation while the bracket 14 is tilted upward by the diagonally upward input F. Further, as shown in this embodiment (see FIG. 4), the center pillar inner 4b and the center reinforcement 2 together with the rail inner 7 are fastened together with the bolt / nut means 25, so that the coupling rigidity is further increased. However, the center pillar inner 4b and the rail inner 7 may be joined by known means such as welding.
[0034]
【The invention's effect】
According to the first aspect of the present invention, since the bracket is attached to the rail inner by the fastening means, the bracket can be easily attached compared to the conventional welding method even if the center reinforcement is in a positional relationship where it interferes with the bracket. is there. In addition, since a clearance is provided between at least the edge of the upper notch and the center reinforcement among the notches passing through the center reinforcement, an obliquely upward input is applied to the roof trim from the vehicle interior side. In this case, the side surface of the bracket can be easily buckled and deformed while falling down, so that the input energy can be sufficiently absorbed. Furthermore, since the flange is bent at least at the edge of the upper notch, even if the above-described clearance is secured, the bracket is prevented from being twisted and the shape retention is improved. In addition, by forming such a flange, a stable reaction force can be obtained when the bracket is buckled and the flange hits the center reinforcement.
[0035]
According to the second aspect of the present invention, since the head of the fastening means is close to the roof trim, even if the roof trim is pushed from the vehicle interior side, it does not move and a sense of stability is good.
[0036]
According to the third aspect of the present invention, by inserting the insertion portion formed at the end of the bracket corresponding to the center reinforcement with respect to the end of the other bracket attached to the front and rear, the bracket Can be temporarily held. Therefore, the bracket can be easily attached by the fastening means.
[0037]
According to the fourth aspect of the present invention, the embossed portion formed on the top surface of the bracket is brought closer to or in contact with the roof trim, so that the stability of the roof trim is further improved.
[Brief description of the drawings]
FIG. 1 is a plan view showing a roof panel according to an embodiment of the present invention.
FIG. 2 is a perspective view of the vicinity of a roof trim as viewed from the passenger compartment.
3 is a cross-sectional view taken along line SA-SA in FIG.
4 is a cross-sectional view taken along line SB-SB in FIG.
5 is a perspective view showing a bracket provided in an arrow DA portion in FIGS. 1 and 2. FIG.
FIG. 6 is a plan view showing the vicinity of the front end portion of the bracket.
FIG. 7 is a side view showing the vicinity of the front end of the bracket.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Roof panel 2 Center reinforcement 6 Side roof rail 7 Rail inner 8 Rail outer 10 Roof trim 13, 15 Another bracket 14 Bracket 16 Top surface 17, 18 Side surface 19 Bolt (fastening means)
20 Mounting piece 21 Insertion part 22 Embossing part 23, 23a, 26 Notch part 24 Flange C1, C2, C3 Clearance R Car interior F Input

Claims (4)

Side roof rails, which are formed with a closed cross section of rail inner and rail outer, are arranged along the front and rear direction on the left and right sides of the roof panel that has a center reinforcement along the vehicle width direction at the front and rear center. Arrange the roof trim at a predetermined interval on the inside,
The rail inner has a top surface close to the roof trim, a side surface bent from both ends of the top surface toward the rail inner side, and a part formed at the edge of the side surface and attached to the rail inner by fastening means. A side roof rail structure for a vehicle in which a bracket made of a piece is provided and a plurality of notches are formed on the side surface of the bracket along the front-rear direction,
The center reinforcement is passed through the notch formed on the side surface of the bracket, and a clearance is provided between at least the edge of the upper notch and the center reinforcement among the notches passing through the center reinforcement. A side roof rail structure for a vehicle, wherein a flange is bent at least at the edge. The side roof rail structure for a vehicle according to claim 1, wherein the lower mounting piece of the bracket is attached to the rail inner by fastening means whose head is close to the roof trim. The side of the vehicle according to claim 1 or 2, wherein another bracket is connected to the front and rear of the bracket, and an insertion portion to be inserted into the end of the other bracket is formed at the front and rear ends of the bracket. Roof rail structure. The side roof rail structure for a vehicle according to any one of claims 1 to 3, wherein an embossed portion directed toward the roof trim side is provided on a top surface of the bracket.

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