JPH1029558A - Vehicle side roof rail structure - Google Patents

Abstract

(57) [Problem] To provide a vehicle side roof rail structure capable of improving the stability of a roof trim. SOLUTION: A top surface 9 close to a roof trim, side surfaces 10 and 11 bent from both ends of the top surface 9 to the rail inner 2 side, and a side surface 1 on a vehicle interior R side of a rail inner 2.
A bracket 8 having a substantially hat-shaped cross section, comprising a flange 12 and a flange 13 formed at the ends of the rails 0 and 11 and joined to the rail inner 2, is provided.
A plurality of cutouts 14 are formed at 0 and 11 along the front-rear direction. Since the top surface 9 of the bracket 8 is close to the roof trim, even if the roof trim is pushed from the vehicle interior R side, it does not move and the stability is good.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a vehicle side roof rail structure.

[0002]

2. Description of the Related Art Side roof rails are provided on both left and right sides of a vehicle roof panel as longitudinal frame members. This side roof rail has a closed sectional structure formed by joining a rail inner and a rail outer. A roof trim for covering the side roof rail is provided at a predetermined interval on the vehicle interior side of the side roof rail. The reason that such a space is provided between the side roof rail and the roof trim is that when a stress is applied to the roof trim from the vehicle interior side, the roof trim moves to the side roof rail side,
This is to absorb the energy (for a similar technique, see Japanese Patent Application Laid-Open No. Hei 6-212161).

[0003]

However, in such a conventional technique, since a predetermined interval is provided between the roof trim and the side roof rails, when the occupant gets on and off the vehicle, the roof is manually moved. When the trim is pushed, the roof trim moves to the side roof rail side, and there is no sense of stability.

The present invention has been made by paying attention to such a conventional technique, and provides a vehicle side roof rail structure capable of improving the stability of a roof trim.

[0005]

According to the first aspect of the present invention,
Side roof rails formed in a closed cross section by rail inner and rail outer are arranged along the front-rear direction on both left and right sides of the roof panel, and a roof trim for covering the side roof rails is provided at a predetermined interval on the rail inner side inside the vehicle compartment. In a side roof rail structure of a vehicle disposed through a top surface, a top surface close to a roof trim, a side surface bent from both ends of the top surface to a rail inner side, and a side end, A bracket having a substantially hat-shaped cross section including a flange formed at the portion and joined to the rail inner is provided, and a plurality of cutouts are formed on the side surface of the bracket along the front-rear direction.

According to the first aspect of the present invention, the top surface of the bracket provided on the vehicle interior side of the rail inner is close to the roof trim. good. In addition, although such a bracket is provided, a notch is provided on the side surface of the bracket. Therefore, when stress is applied to the roof trim from the vehicle interior side, the side surface of the bracket may be provided. Can easily buckle and absorb the energy of the stress sufficiently. Moreover, according to such a structure, the deformation mode of the bracket can be easily controlled by adjusting the amount of the notch.

According to a second aspect of the present invention, the notch has a shape in which the flange is also cut.

According to the second aspect of the present invention, since the notch has a shape in which the flange is also cut, the formation of the notch is easy.

According to a third aspect of the present invention, a plurality of cut-and-raised portions facing the rail inner side are formed on the top surface of the bracket along the front-rear direction.

According to the third aspect of the present invention, since the cut-and-raised portion is formed on the top surface of the bracket, the initial reaction force when the side surface of the bracket is buckled is increased, and more efficient energy absorption is performed. be able to.

According to a fourth aspect of the present invention, a triangular bead is provided at the broken line of the cut-and-raised portion.

According to the fourth aspect of the present invention, since the triangular bead is provided at the broken line of the cut and raised portion, the rigidity of the cut and raised portion is improved, and the initial reaction force can be increased.

According to a fifth aspect of the present invention, cut portions are formed on both sides of a broken line of the cut and raised portion.

According to the fifth aspect of the present invention, since the cut portions are formed on both sides of the bent line of the cut and raised portion, the cut and raised portion can be formed even if the top surface of the bracket has a three-dimensionally changing surface shape. It can be formed by simple bending.

In the invention described in claim 6, the lower angle of the angle formed by the top surface of the bracket and each side surface is set smaller than the upper angle.

According to the sixth aspect of the present invention, of the angles formed by the top surface of the bracket and the side surfaces, the lower angle is set smaller than the upper angle. When a stress is applied substantially at a right angle, the bracket is deformed so as to fall down, so that the energy of the stress can be more reliably absorbed.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will be described below with reference to FIGS. Side roof rails 1 as front-rear skeletal members are disposed at upper left and right portions of the cabin R of the automobile. The side roof rail 1 has a closed sectional structure in which a rail inner 2 and a rail outer 3 are joined. Both ends of a roof panel 5 are attached to the rail outer 3 via a drip member 4.

A roof trim 6 for covering the side roof rail 1 is disposed at a predetermined interval D (see FIG. 2) on the side R side of the side roof rail 1 in the vehicle interior. The roof trim 6 is attached to the side roof rail 1 by clip means (not shown). The end of the roof trim 6 is supported by a weather strip 7 provided on a joint flange below the side roof rail 1.

A bracket 8 having a substantially hat-shaped cross section is attached to the rail inner 2 of the side roof rail 1 along the front-rear direction. This bracket 8
Are a top surface 9 close to the roof trim 6, and side surfaces 10, 11 bent from both ends of the top surface 9 to the rail inner 2 side.
And the rail inner 2 formed at the ends of the side surfaces 10 and 11
And flanges 12 and 13 joined to each other.

The side surfaces 10 and 11 of the bracket 8
The flanges 12,
A plurality of cutout portions 14 are formed along the front-back direction. This notch 14 is the flange 1
Sides 10 and 11 are also cut out together with 2 and 13
The formation of the notch 14 is easier than in the case of forming the notch only.

Further, a cut-and-raised portion 15 is formed on the top surface 9 of the bracket 8 so as to be bent toward the rail inner 2 side. A plurality of the cut-and-raised portions 15 are formed along the front-rear direction of the bracket 8, and the tip thereof is in a state of being close to the rail inner 2.

The broken line 15a of the cut and raised portion 15 (FIG. 4)
(See FIG. 1), a triangular bead 16 is formed at the center to increase the rigidity of the cut-and-raised portion 15. Cut portions 17 are formed on both sides of the bent line 15a of the cut and raised portion 15. Due to the presence of the cut portion 17, the cut and raised portion 15 can be formed by simple bending. That is, although the top surface 9 of the bracket 8 has a delicate surface shape that changes three-dimensionally in accordance with the shape of the side roof rail 1, cut portions are formed on both sides of a broken line 15 a serving as a starting point of the cut and raised portion 15. Since the cuts 17 are formed, the cuts 17 serve as “buffers”, so that the cut-and-raised portions 15 can be formed by simple bending without being affected by the surface shape of the top surface 9.

The top surface 9 of the bracket 8
Of the angles α and β formed between the angle α and the side surfaces 10 and 11, the lower angle β is set smaller than the upper angle α (see FIG. 4).

According to this embodiment, as described above, the top surface 9 of the bracket 8 is close to the roof trim 6,
Even if the roof trim 6 is pushed by the occupant's hand at the time of getting on and off, the roof trim 6 is supported by the bracket 8 so that a sense of stability is good.

Next, the stress energy F is applied to the roof trim 6.
The operation in the case where is added will be described. When a stress acts on the roof trim 6, its stress energy F is immediately transmitted to the top surface 9 of the bracket 8. When the stress energy F is applied to the top surface 9, the stress energy F is changed to the side surfaces 10 and 11.
Join. Since the plurality of cutouts 14 are formed in the side surfaces 10 and 11, they are buckled and deformed by receiving the stress energy F. Therefore, with the buckling deformation of the side surfaces 10 and 11, the top surface 9 and the roof trim 6 are moved to the side roof rail 1.
To the side, during which the stress energy F can be sufficiently absorbed.

The deformation mode of the side surfaces 10 and 11 is as follows.
4 can be easily controlled by adjusting the amount of 4 (the size of the cutouts 14 and the distance between adjacent cutouts 14). Therefore, in the case of this embodiment, the optimal amount of the cutout portion 14 for absorbing the stress energy is set in the shape of the bracket 8 (cross-sectional size, plate thickness, etc.).

The top surface 9 of the bracket 8 has a cut-and-raised portion 1.
5 is formed, the cut-and-raised portion 15 is
, The initial reaction force when the side surfaces 10 and 11 buckle is increased, and the stress energy F
Can be absorbed more efficiently. In particular, since the triangular bead 16 is formed at the broken line 15a of the cut-and-raised portion 15 to increase the rigidity of the cut-and-raised portion 15 itself, the initial reaction force can be sufficiently increased.

Furthermore, of the upper and lower angles α and β of the bracket 8, the lower angle β is smaller than the upper angle α, so that the stress energy F is applied substantially perpendicular to the top surface 9. In the meantime, the bracket 8 is deformed so as to fall down (in the direction of the arrow in FIG. 3), so that the stress energy F can be more reliably absorbed.

In the above embodiment, the cutout portion 14 is formed from the side surfaces 10 and 11 of the bracket 8 to the flanges 12 and 13. However, only the side surfaces 10 and 11 have an elliptical shape, a circular shape, and a rectangular shape. Alternatively, a plurality of “notches” having a rhombic shape or other shapes may be formed. In short, it is only necessary that a “notch” having a shape capable of inducing buckling deformation of the side surfaces 10 and 11 of the bracket 8 is formed.

[0030]

According to the first aspect of the present invention, since the top surface of the bracket provided on the vehicle interior side of the rail inner is close to the roof trim, the roof trim is stable even when pushed from the vehicle interior side. Good feeling. In addition, although such a bracket is provided, a notch is provided on a side surface of the bracket, so that when a stress acts on the roof trim from the vehicle interior side, the bracket is not provided. The side surface is easily buckled and deformed, so that the stress energy can be sufficiently absorbed. Moreover, according to such a structure, the deformation mode of the bracket can be easily controlled by adjusting the amount of the notch.

According to the second aspect of the invention, since the notch has a shape in which the flange is also cut, the formation of the notch is easy.

According to the third aspect of the present invention, since the cut-and-raised portion is formed on the top surface of the bracket, the initial reaction force when the side surface of the bracket is buckled is increased, and more efficient energy absorption is performed. be able to.

According to the fourth aspect of the present invention, since the triangular bead is provided on the broken line of the cut and raised portion, the rigidity of the cut and raised portion is improved, and the initial reaction force can be increased.

According to the fifth aspect of the present invention, since the cut portions are formed on both sides of the bent line of the cut and raised portion, even if the top surface of the bracket has a three-dimensionally changing surface shape, the cut and raised portion is formed. It can be formed by simple bending.

According to the sixth aspect of the present invention, of the angles formed by the top surface of the bracket and each side surface, the lower angle is set smaller than the upper angle. When a stress is applied at a substantially right angle, the bracket is deformed so as to fall down, so that the stress energy can be more reliably absorbed.

[Brief description of the drawings]

FIG. 1 is a perspective view of a vehicle cabin showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along the line SA-SA shown in FIG.

FIG. 3 is a cross-sectional view corresponding to FIG.

FIG. 4 is an enlarged perspective view showing a bracket.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Side roof rail 2 Rail inner 3 Rail outer 5 Roof panel 6 Roof trim 8 Bracket 9 Top surface 10,11 Side surface 12,13 Flange 14 Notch portion 15 Notch portion 15a Fold line 16 Triangular bead 17 Notch portion R Interior D Predetermined interval α , Β angle F stress energy

Claims (6)

[Claims] 1. A side roof rail having a closed cross section formed by a rail inner and a rail outer on both left and right sides of a roof panel is disposed along a front-rear direction, and a roof trim for covering and hiding the side roof rail is provided in the passenger compartment of the rail inner. In a side roof rail structure of a vehicle which is arranged inside at a predetermined interval, a top surface close to a roof trim and a side surface bent from both ends of the top surface to the rail inner side, on the vehicle interior side of the rail inner. And a bracket having a substantially hat-shaped cross-section comprising a flange formed at the end of the side surface and joined to the rail inner, and a plurality of cutouts are formed in the side surface of the bracket along the front-rear direction. The side roof rail structure of the vehicle. 2. The side roof rail structure for a vehicle according to claim 1, wherein the notch has a shape in which a flange is also cut. 3. The side roof rail structure for a vehicle according to claim 1, wherein a plurality of cut-and-raised portions facing the rail inner side are formed on the top surface of the bracket along the front-rear direction. 4. The side roof rail structure for a vehicle according to claim 3, wherein a triangular bead is provided at a bent line of the cut-and-raised portion. 5. The side roof rail structure for a vehicle according to claim 3, wherein cut portions are formed on both sides of the bent line of the cut and raised portion. 6. The vehicle according to claim 1, wherein the lower angle is set smaller than the upper angle among the angles formed by the top surface of the bracket and the side surfaces. Side roof rail structure.