JP2000025649A - Car body structure of automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a car body structure of an automobile capable of improving torsional rigidity of a roof without accompanying an increase in plate thickness and an increase in a disposing number of a roof bow. SOLUTION: Because a roof bow 4 is high in rigidity because the roof bow 4 is formed into a substantially the same channel cross section height up to a part striding over an upper part of a roof side rail 7 and a recessed part 20 which is provided in front and back directions of a side part of a roof panel 1 and is improved in panel rigidity is joined and fixed on the side part which is maintained to a required channel cross section height of this roof guide rail 4, torsional rigidity of the whole of the roof can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a vehicle body structure,
In particular, it relates to a reinforcement structure around a roof.

[0002]

2. Description of the Related Art FIG. 6 shows a structure around a roof of a conventional automobile. A roof panel 1 is provided with a plurality of roof bows 4 having a channel sectional shape along the inner surface thereof in the vehicle width direction. .

The side end of the roof bow 4 is bent downward so as to straddle an upper part of a roof side rail 7 to be described later to form a leg 5.
The terminal is formed as a flat flange 6 as shown in FIG. 7, and the terminal flange 6 is joined to the side edge flange 2 of the roof panel 1 by spot welding, and the roof bow 4 is Sub-assembled in panel 1.

A roof side rail 7 having a closed cross section formed by a rail outer 8 and a rail inner 9 is disposed in the front and rear direction inside the side portion of the roof panel 1.
The terminal flange 6 and the side edge flange 2 are superimposed on a drip channel 10 having an L-shaped cross section joined and arranged on
It is joined to the drip channel 10 by spot welding.

The roof bow 4 is sub-assembled to the roof panel 1 as described above, and its terminal flange 6 is joined to the drip channel 10 together with the side edge flange 2 of the roof panel 1, and the roof bow 4 is connected to the roof side rail 7. Due to the uncoupled state, the upper part of the roof side rail 7 is provided so that the roof bow 4 does not interfere with the roof side rail 7 in the torsion mode or the bending mode of the vehicle during traveling and generate abnormal noise. The side part of the roof bow 4 to be arranged is formed by changing the channel cross-sectional height to a small and flat shape together with the leg part 5 so as to set a clearance for interference with the roof side rail 7. .

In FIG. 6, reference numeral 11 denotes a drip weather which is attached to a drip channel and forms a drip portion 13 between the shoulder portion 3 on the side of the roof panel 1 and the door sash 12 when the door is closed. A strip 14 is a door weather strip which is attached to the periphery of the opening of the vehicle body and is in close contact with the periphery of the door when the door is closed to seal the inside and outside of the vehicle compartment.

[0007]

As described above, the roof bow 4 is formed so that the side portions thereof are formed so that the channel cross-section height is reduced to a small flat shape so as not to interfere with the roof side rails 7. Therefore, it cannot be denied that the torsional rigidity of the entire roof is reduced.

On the other hand, JP-A-6-286656, JP-A-8-156636, and the like disclose a roof bow aligned with a pillar arrangement position and arrange the roof bow end with a pillar and a roof side rail. In this structure, the position of the roof bow in the front-rear direction is restricted by the position of the pillar.

Therefore, the present invention can further increase the torsional rigidity of the entire roof without being restricted by the position of the roof bow and without increasing the thickness of the roof bow or the number of roof bows. An object of the present invention is to provide a vehicle body structure.

[0010]

According to the first aspect of the present invention, an end of a roof bow having a channel cross-sectional shape disposed in a vehicle width direction along an inner surface of a roof panel is formed as a flat flange. In a structure in which the terminal flange is overlapped with a side edge flange of a roof panel on a drip channel joined to an outer side surface of a roof side rail and joined together, a cross section of the roof bow is substantially the same up to a portion straddling above a roof side rail. While being formed at the height, a concave portion extending in the front-rear direction is provided on a side portion of the roof panel, and the concave portion is joined and fixed on a side portion of the roof bow maintained at the required channel cross-sectional height. It is characterized by:

According to the second aspect of the present invention, the recessed portion according to the first aspect is joined and fixed to a side portion of the roof bow together with a mounting stand for the roof exterior component, and the roof exterior component is mounted on the mounting stand. It is characterized by:

According to the third aspect of the present invention,
The opening of the sunroof drain hose is provided in the side wall of the recess, and the end of the sunroof drain hose is pulled out from the opening into the recess and is routed.

According to a fourth aspect of the present invention, the portion provided with the opening of the side wall according to the third aspect is formed as a bead portion bulging toward the concave portion side.

According to the fifth aspect of the present invention,
The grommet is attached to the periphery of the opening described in (1), and the insertion portion of the sunroof drain hose is sealed with the grommet.

According to the invention of claim 6, claims 1 to 5 are provided.
The bottom wall of the recessed portion described in (1) is characterized in that it is inclined and connected to a drip portion formed between the roof panel side and the door sash.

In the invention of claim 7, claims 1 to 6
Is concealed by a roof molding.

[0017]

According to the first aspect of the present invention, the roof bow is formed so as to have substantially the same channel cross-sectional height up to a portion extending over the roof side rail on the side portion thereof, so that the rigidity of the roof bow itself is increased. At the same time, the rigid portion of the concave portion extending in the front-rear direction on the side of the roof panel is joined and fixed on the side of the roof bow maintained at the required channel cross-sectional height, The torsional rigidity of the entire roof can be increased without increasing the thickness of the roof bow or increasing the number of roof bows to be installed. Can also be increased.

Further, unlike the method in which the roof bow is directly joined to the pillar, there is no restriction on the position of the roof bow in the front-rear direction, so that the degree of freedom in design can be increased.

According to the second aspect of the present invention, the first aspect is provided.
In addition to the effect of the invention of the invention, since the roof exterior parts arranged on the roof are mounted on the mounting stand joined and fixed on the side of the roof bow together with the concave portion of the roof panel,
The support rigidity of the mounting stand is high, so that the mounting rigidity of the roof exterior parts can be increased, and the quality and reliability can be improved.

According to the third aspect of the present invention, in addition to the effects of the first and second aspects of the invention, in a sunroof type vehicle, the end of the sunroof drain hose is provided on the side of the roof panel. Since the drain water can be drained from the sunroof drain hose to the concave portion by pulling out from the opening in the side wall of the concave portion to the concave portion and arranging the same, the routing route of the sunroof drain hose can be significantly shortened and the laying work can be performed. Man-hours can be reduced.

According to the invention set forth in claim 4, according to claim 3,
In addition to the effect of the invention, the opening forming portion of the side wall through which the sunroof drain hose is inserted is formed as a bead portion bulging toward the concave portion side, so that the rigidity of the sunroof drain hose inserting portion of the side wall is formed. Of course, it is possible to increase the mounting rigidity of the sunroof drain hose, of course, since the bead portion is concave inside the roof panel, when inserting the sunroof drain hose from the inside of the roof panel into the opening, The recess functions as an insertion guide to improve the insertion workability.

According to the fifth aspect of the present invention, in addition to the effects of the third and fourth aspects, since the sunroof drain hose insertion portion of the opening is sealed with a grommet,
Of course, it is possible to prevent the intrusion of water, dust, etc. from the recessed portion into the interior of the vehicle, thereby improving the quality and reliability.
Since the end of the sunroof drain hose can be elastically supported on the periphery of the opening by the grommet, the work of attaching the end of the sunroof drain hose can be easily performed.

According to the invention described in claim 6, according to claim 1,
In addition to the effects of the inventions of (1) to (5), since the bottom wall of the concave portion is inclined and connected to the drip portion on the side of the roof panel, the water flowing into the concave portion is smoothly drained to the drip portion. As a result, the drainage of the recessed portion can be improved.

According to the invention of claim 7, according to claim 1,
In addition to the effects of the sixth to sixth aspects, the recessed portion of the roof panel is concealed by the roof molding, so that the appearance is not slightly impaired.

[0025]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the accompanying drawings, in which the same reference numerals are assigned to the same parts as in the above-mentioned conventional configuration.

In FIG. 1, the side ends of the roof bow 4 having a plurality of channel cross-sections arranged in the vehicle width direction along the inner surface of the roof panel 1 are arranged inside the side of the roof panel 1 in the front-rear direction. The leg 5 is bent downward so as to straddle the roof side rail 7 provided above, and the terminal is formed as a flat flange 6, and the terminal flange 6 is connected to the side edge of the roof panel 1. The basic structure of overlapping with the drip channel 10 having an L-shaped cross section, which is joined to the rail outer 8 of the roof side rail 7 together with the flange 2 and joining by spot welding, is the same as the above-mentioned conventional one.

Here, the roof bow 4 is formed to have substantially the same channel sectional height up to a portion straddling above the roof side rail 7, and the leg portion 5 is gradually reduced in the channel sectional height downward from its bent base. The shape is changed.

Since the side portion of the roof bow 4 is formed while maintaining the required channel cross-sectional height as described above, the side portion can secure a required non-interference clearance with the roof side rail 7. The roof panel 1 is disposed as close to the surface of the roof panel 1 as possible, while the side of the roof panel 1 is provided with a recess 20 extending in the front-rear direction. The bottom wall 20a is joined and fixed by spot welding on the side of the roof bow 4 maintained at the required channel cross-sectional height.

The roof bow 4 is sub-assembled to the roof panel 1 by joining the side portions thereof to the bottom wall 20a of the concave portion 20 of the roof panel 1 as described above. Flange 6 to roof panel 1
Along with the side edge flange 2 on the drip channel 10.

The recessed portion 20 is filled with a roof molding 21 made of an elastic material such as rubber or synthetic resin in an outfitting process, and the recessed portion 20 is concealed by the roof molding 21.

Therefore, according to the structure of this embodiment, the roof bow 4 has substantially the same channel cross section up to a portion that straddles the upper side of the roof side rail, that is, to a portion connected to the leg 5 bent downward. Because it is formed at the height,
In addition to increasing the rigidity of the roof bow 4 itself, the side portion of the roof panel 1 has a concave portion 20 extending in the front-rear direction.
The rigidity of the panel provided with the concave portion 20 is fixed to the side of the roof bow 4 maintained at the required channel cross-sectional height, thereby increasing the thickness of the roof bow 4. It is possible to increase the torsional rigidity of the entire roof without increasing the number of the roof bows 4 and increasing the number of spot welds at the time of sub-assembly with the roof panel 1.

Further, the bending rigidity of the roof panel 1 can be increased by forming the recessed portion 20 in the front-rear direction on the side portion of the roof panel 1.

Furthermore, unlike the conventional structure in which the roof bow 4 is directly connected to a pillar (not shown), there is no restriction on the position of the roof bow 4 in the front-rear direction, so that the degree of freedom in design can be increased.

FIG. 2 shows a second embodiment in which the present invention is applied to a high roof type vehicle.

In the second embodiment, an inclined bottom wall 20a formed by extending the concave portion 20 on the side of the roof panel 1 substantially on the upper surface of the shoulder portion 3 is provided.
20a with the side wall 20b which rises greatly from the upper side 20a.
The height of the ground in the central part of the roof panel 1 is set high.

The portion of the roof bow 4 corresponding to the central portion of the roof panel 1 is disposed close to the back surface of the roof panel 1, and the side portions are smoothly bent so as to abut the bottom wall 20a of the step portion 20A. Then, it is joined to the bottom wall 20a by spot welding.

In the second embodiment, a mounting stand 22 for a roof exterior component 23 to be described later is spot-welded on the side of the roof bow 4 together with the bottom wall 20a of the step 20A by spot welding. A roof exterior component disposed on the roof, for example, a roof rack 23 is mounted.

In FIG. 2, the roof rack 23 is
a, a cylindrical spacer 24 is interposed between the base portion 23 a and the mounting stand 22, and the base portion 23 a is formed by a bolt 25 and a weld nut 26 provided on the mounting stand 22. It is fastened and fixed on the mounting stand 22.

In the second embodiment, the roof molding 21 for concealing the recess 20 is a cover member 21 having an inverted L-shaped cross section.
The upper wall is formed with an opening 21a through which the spacer 24 is inserted.

An escutcheon 27 is also provided on the bottom surface of the base portion 23a. The escutcheon 27 also serves as a seal pad that is in close contact with the roof panel 1 and the upper wall surface of the cover member 21A.

According to the structure of the second embodiment, the same effects as those of the first embodiment can be obtained, and the roof rack 2
3 is mounted on a mounting stand 22 joined and fixed to a side of the roof bow 4 maintained at a required channel cross-sectional height together with the bottom wall 20a of the recessed portion 20 of the roof panel 1. The support rigidity is high, and therefore, the mounting rigidity of the roof rack 23 can be increased, and the quality and reliability can be improved.

The recessed portion 20 is formed as a stepped portion 20A, and the bottom wall 20a of the recessed portion 20 is formed so as to be inclined substantially on the extension of the upper surface of the shoulder portion 3 on the side of the roof panel 1. 20 a is connected to the drip weather strip 11 and the drip portion 13 formed between the shoulder portion 3 and the door sash 12. As a result, rainwater, car wash water and the like flowing into the concave portion 20 are removed. Due to the inclination of the bottom wall 20a, the drainage can be smoothly guided to the drip portion 13, the drainage of the concave portion 20 can be improved, and the quality and reliability can be further improved.

Further, according to the structure of the second embodiment, the recessed portion 20 on the side of the roof panel 1 is formed as a stepped portion 20A, so that the height of the central general portion of the roof panel 1 is increased. Although the vehicle is a high-roof type vehicle, the vehicle body panel components other than the roof panel 1 and the roof bow 4, for example, the roof side rails 7, can be shared with a standard roof-type vehicle, and the cost can be very advantageously obtained. .

FIGS. 3 to 5 show a third embodiment in which the present invention is applied to a vehicle having a sunroof specification.

In the third embodiment, similarly to the second embodiment, the inclined bottom wall 20 formed by forming the concave portion 20 on the side of the roof panel 1 on the substantially upper surface extension of the shoulder portion 3.
a and a side wall 20 that rises significantly upward from the bottom wall 20a
b and 20b to form a high-roof type roof structure in which the height of the ground in the central general portion of the roof panel 1 is increased, and the structure of the roof bow 4 and the side walls of the roof bow 4 and the bottom wall of the step 20A. The connection structure with 20a is also the same as in the second embodiment, and a specific description is omitted.

In a vehicle with a sunroof specification, even if rainwater, car wash water, or the like intrudes from the parting portion between the roof opening 30 and the sunroof lid 31, the sunroof unit frame 32 receives the intruding water and receives the sunroof. Drainage means for guiding drainage to the outside of the vehicle with a drain hose 33 is employed.

Normally, the sunroof drain hose 33
Penetrates the rail inner 9 of the roof side rail 7,
From the inside of the closed section of the roof side rail 7, it is inserted and routed into the closed section of each pillar 34 such as the front pillar, the center pillar, and the rear pillar to form a drainage system outside the vehicle. In the third embodiment, An opening 28 is provided in the side wall 20b of the recess 20 provided on the side of the roof panel 1, and an end of the sunroof drain hose 33 is pulled out from the opening 28 into the recess 20 and routed therethrough. The intrusion water derived at 33 is drained to the recess 20.

The portion of the side wall 20b where the opening 28 is provided is formed as a bead portion 20c which protrudes toward the concave portion 20 side.

A bellows-like grommet 29 is attached to the end of the sunroof drain hose 33. The grommet 29 is fitted to the periphery of the opening 28 to elastically support the end of the sunroof drain hose 33 by the grommet 29. And the periphery of the opening 28 is sealed.

Therefore, according to the structure of the third embodiment, the same effects as those of the second embodiment can be obtained, and the routing route of the sunroof drain hose 33 can be significantly shortened, and the number of routing work can be reduced. Therefore, it can be obtained very advantageously in terms of cost.

Further, since the sunroof drain hose 33 is not inserted and routed in the roof side rail 7 or the pillar 34, clogging due to interference of the end of the sunroof drain hose 33 with the panel or detachment from the panel through hole. In addition to the fact that there is almost no risk of water intrusion into the room due to the above, there is no problem of hitting sound due to swinging in the closed section of the panel, so that the sense of quality can be further enhanced.

Particularly, in this embodiment, the portion of the recessed portion 20 where the opening 28 of the side wall 20b into which the sunroof drain hose 33 is inserted is formed as a bead portion 20c, so that the sunroof drain hose is inserted into the side wall 20b. The sunroof drain hose 33 has high rigidity.
Of course, since the bead portion 20c is recessed inside the roof panel 1, when the sunroof drain hose 33 is inserted from the inside of the roof panel 1 into the opening 28, the mounting rigidity can be increased. The recess functions as an insertion guide, and the insertion workability can be improved.

Further, since the sunroof drain hose insertion portion of the opening 28 is sealed with the grommet 29,
It is possible to prevent the intrusion of water, dust, and the like from the recessed portion 20 into the vehicle interior to improve the quality and reliability, and of course, the sunroof drain hose 33 by the grommet 29.
Can be elastically supported on the periphery of the opening 28, so that the work of attaching the end of the sunroof drain hose 33 can be performed easily.

In any of the above embodiments, the recess 20 is concealed by the roof molding 21 so that the appearance is not slightly impaired.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a first embodiment of the present invention.

FIG. 2 is a sectional view showing a second embodiment of the present invention.

FIG. 3 is a plan view showing a third embodiment of the present invention.

FIG. 4 is a sectional view taken along the line AA in FIG. 3;

FIG. 5 is a perspective view showing a sunroof drain hose insertion portion of the embodiment.

FIG. 6 is a sectional view showing a conventional structure.

FIG. 7 is a perspective view showing a leg lower end of the roof bow.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Roof panel 2 Side edge flange 4 Roof bow 6 Terminal flange 7 Roof side rail 10 Drip channel 12 Door sash 13 Drip part 20 Recessed part 20a Bottom wall 20b Side wall 20c Bead part 21 Roof molding 22 Mounting stand 23 Roof exterior parts 28 Opening 29 Grommet 33 sunroof drain hose

Claims (7)

[Claims] 1. A terminal of a roof bow having a channel cross section disposed along the inner surface of a roof panel in a vehicle width direction is formed as a flat flange, and the terminal flange is joined to an outer side surface of a roof side rail. The roof bow is formed to have approximately the same channel cross-sectional height up to a portion that straddles above the roof side rails, and the roof bow is formed on the side of the roof panel. The vehicle body structure of an automobile, wherein a recessed portion extending in the direction is provided, and the recessed portion is fixedly joined to a side portion of the roof bow maintained at the required channel cross-sectional height. 2. The vehicle body according to claim 1, wherein the concave portion is fixedly joined to a side portion of the roof bow together with a mounting stand for the roof exterior component, and the roof exterior component is mounted on the mounting stand. Construction. 3. The vehicle body according to claim 1, wherein an opening is provided in a side wall of the recessed portion, and an end of the sunroof drain hose is pulled out from the opening into the recessed portion and is routed. Construction. 4. The vehicle body structure of an automobile according to claim 3, wherein the portion of the side wall provided with the opening is formed as a bead portion bulging toward the concave portion side. 5. The vehicle body structure according to claim 3, wherein a grommet is attached to a periphery of the opening, and a portion through which the sunroof drain hose is inserted is sealed by the grommet. 6. The method according to claim 1, wherein the bottom wall of the recessed portion is inclined and connected to a drip portion formed between the roof panel side and the door sash. Car body structure. 7. The vehicle body structure according to claim 1, wherein the recessed portion is hidden by a roof molding.