JP2000219155A - Body structure of vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a body structure of a vehicle, having compatibility between reduction of the weight of a body and improvement of rigidity. SOLUTION: This body structure of a vehicle is provided with an inner panel structural body 8 for constituting an inner part of a vehicle, and an outer closed sectional structural body 12 arranged along the vehicular outer side of the inner panel structural body, to be attached to the inner panel structural body, and having a part for forming an outer part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a vehicle body structure, and more particularly to a vehicle body structure using a structure formed by a tube hydroforming method or the like.

[0002]

2. Description of the Related Art Conventionally, it has been known to form a hollow molded body by supplying a fluid such as high-pressure oil to a raw tube and deforming it into a predetermined shape by using a tube hydroforming method. Japanese Patent Application Laid-Open No. 8-337182 discloses a method in which a hollow molded body is formed by an expansion of a hydraulic system (tube hydroforming method), and beams of a superstructure of a vehicle are connected to each other over a part of the entire length of the beam.
One that is formed by two hollow molded bodies is disclosed. In Japanese Patent Application Laid-Open No. Hei 9-150755, a round pipe made of an aluminum alloy is used as a material, which is bent into a hoop (annular member), and this hoop is blow-molded (tube hydroforming method). A frame is disclosed, and the frame is welded to form a body frame. Other than these, similar technologies are disclosed in JP-A-10-95364, JP-A-10-95365, JP-A-9-30
No. 345, JP-A-10-138950 and JP-A-8-192238
It is disclosed in the gazette.

[0003]

In the tube hydroforming method, since a raw tube can be uniformly pressed from the inside thereof, a material having a higher tensile strength (for example, an ultra-high tensile Steel) can be used. As a result, the strength is increased due to an increase in the proof stress, thereby making it possible to reduce the weight of the vehicle body. Therefore, as shown in the above-mentioned patent publication, a structure in which a tube hydroforming method is applied to a vehicle body structure has been proposed. However, the application of the closed-section structure (closed-section member) manufactured by the tube hydroforming method to the vehicle body structure is not sufficient, and various applications are expected. In addition, various applications of the closed-section structure (closed-section member) to the vehicle body structure of a vehicle are not limited to those manufactured by the tube hydroforming method.

Accordingly, the present invention has been made to satisfy a conventional demand, and an object of the present invention is to provide a vehicle body structure that achieves both reduction in weight of a body and improvement in rigidity.

[0005]

In order to achieve the above object, a vehicle body structure according to the present invention comprises an inner panel structure constituting an inner portion of a vehicle, and an inner panel structure provided outside the vehicle body of the inner panel structure. And an outer closed cross-section structure which is disposed along the inner panel structure and is attached to the inner panel structure, a part of which forms an outer portion of the vehicle. According to the present invention thus configured, the outer closed cross-section structure forms a part of the outer part of the vehicle, so that a part of the outer part which has been conventionally required can be omitted.
In addition, since the inner panel structure and the outer closed-section structure are used in combination, the rigidity of the body can be increased. Further, since the inner panel structure is used as a part of the vehicle body structure, the flange portion of the inner panel structure can be effectively used as a seal portion, a joint portion with glass, or the like.

In the present invention, the inner panel structure is a continuous panel constituting at least a pillar inner, and the outer closed cross-sectional structure is continuously arranged over a region of a pillar portion of the inner panel structure. preferable. In the present invention, the inner panel structure preferably has a flange portion, and a windshield is preferably attached to the flange portion via an adhesive. In the present invention, it is preferable that a part of the inner panel structure is discontinuous. In the present invention, it is preferable that the outer closed-section structure is continuously arranged from the roof rail portion to the pillar portion. . In the present invention, the inner panel structure is preferably formed by press molding, and the outer closed-section structure is preferably formed by tube hydroforming.

Further, the present invention has a closed section member, an inner panel member, and an outer panel member, and a part of the closed section member is joined to the inner panel member, and the outer section of the vehicle is opposed to the joined portion. And the other part is joined to the outer panel member, and the inner face of the vehicle is constituted by facing the joined part. According to the present invention configured as described above, a part of the closed cross-section member is joined to the inner panel member, and the outer surface of the vehicle is formed by facing the joined portion, and the other portion of the closed cross-section member is joined to the outer panel member. Since the inner portion of the vehicle is configured to face the joint, a part of the outer portion and the inner portion of the vehicle, which is conventionally required, can be omitted. Further, since the inner panel member, the outer panel member, and the closed section member are used in combination, the rigidity of the body can be increased. Further, since the inner panel member and the outer panel member are used as a part of the vehicle body structure, these flange portions can be effectively used as a seal portion, a joint portion with glass, and the like.

In the present invention, it is preferable that the closed section structure is provided in the region of the pillar section and the roof rail section, and a part of the closed section structure forms a pillar outer section and the other section forms a roof rail inner section. In the present invention, the inner panel member and the outer panel member are preferably formed by press molding, and the closed-section structure is preferably formed by tube hydroforming.

[0009]

Embodiments of the present invention will be described below with reference to the accompanying drawings. First, a first embodiment of the present invention will be described with reference to FIGS. FIG. 1 shows the first embodiment of the present invention.
FIG. 2 is an overall perspective view showing the embodiment, and FIG.
FIG. 3 is a cross-sectional view taken along a line BB of FIG. 1. As shown in FIG. 1, reference numeral 1 denotes a side structure of the vehicle. The side structure 1 of the vehicle includes a roof rail 2 and a pillar 4. Further, the side structure 1 of the vehicle includes:
A side frame outer panel 6 constituting an outer portion of the vehicle excluding the pillar portion 4, and a pillar portion 4 extending from the vehicle body side of the side frame outer panel 8 and the roof rail portion 2.
And an inner panel structure 8 which is disposed along the inner side and forms an inner portion of the vehicle. This inner panel structure 8
Are arranged along the pillar section 4 from the entire area of the side frame outer panel 8 on the vehicle body compartment side and from the roof rail section 2, and function as a pillar inner panel 10 in the pillar section 4. In the present embodiment, the inner panel structure 8 is not necessarily the side frame outer panel 8.
Need not be arranged along the entire area of the vehicle body side, and may be arranged at least in the region of the pillar portion 4. Also,
In the present embodiment, the pillar inner panel 10 is moved from the roof rail portion 2 of the side frame outer panel 6 to the pillar portion 4.
Can be formed by bending only the part along the vehicle body toward the vehicle body side to form the inner part of the vehicle body.

The side structure 1 of the vehicle is further arranged continuously from the roof rail portion 2 of the inner panel structure 8 to the region of the pillar portion 4 (including the region of the pillar inner panel 10). An outer closed section structure 12 that forms a part and an outer portion of the pillar portion 4 is provided.
Here, the side frame outer panel 6 (including the pillar inner panel 10) is obtained by press molding. Also,
The outer closed sectional structure 12 is pressurized with oil under predetermined conditions by the above-described tube hydroforming method,
Integrally molded into the desired shape, and then the outer closed-section structure
Reference numeral 12 denotes a region from the roof rail portion 2 to the pillar portion 4 of the inner panel structure 8 (including a region of the pillar inner panel 10).
Are joined by welding or the like.

Next, each cross-sectional shape of the side structure 1 of the vehicle will be described with reference to FIGS. First, as shown in FIG. 2, in the pillar portion 4 of the side structure 1 of the vehicle,
An outer closed section structure 12 is joined to the outer side of the vehicle body of the inner panel structure 8, ie, the pillar inner panel 10.
The pillar inner panel 10 has a flange portion 10a, and a windshield 14 is fixed to the flange portion 10a with an adhesive 16. Further, a weather strip 18 is attached between an end portion of the windshield 14 and a vehicle compartment side of the outer closed-section structure 12. As shown in FIG. 3, in the roof rail portion 2 of the side structure 1 of the vehicle, a side frame outer panel 6 is joined to the outer side of the vehicle body of the inner panel structure 8, and a closed cross section 20 is formed by both. . The inner panel structure 8 and the side frame outer panel 6 have flange portions 6a, 8a, respectively. The flange portions 6a, 8a are provided with sealing members for contacting a door (not shown) to seal the door opening. 21 is installed.

According to the first embodiment of the present invention configured as described above, the outer closed cross-section structure 12 is provided in a part of the inner portion of the vehicle, that is, in the region extending from the roof rail portion 2 to the pillar portion 4. To form the part,
A part of the outer part (specifically, a part of the roof rail outer and the pillar outer) which has been conventionally required can be omitted. Further, in the side structure 1 of the vehicle, the inner panel structure 8 and the outer closed-section structure 12 are used in combination, so that the body rigidity can be increased. Further, since the outer closed-section structure 12 is formed by the tube hydroforming method, the rigidity of the body can be increased and the weight can be reduced as compared with the conventional press working. As a result, according to the present embodiment, the pillar portion 4 can be formed to have a smaller shape than before, and does not hinder the driver's view. Further, since the inner panel structure 8 is used as a part of the side structure, the flange portion of the inner panel structure 8 can be effectively used as a seal portion or a joint portion with glass, for example, as shown in FIG. It can be used for

Next, a second embodiment of the present invention will be described with reference to FIG. FIG. 4 is an exploded perspective view showing a second embodiment of the present invention. In the second embodiment, only the portions different from the first embodiment will be described. As shown in FIG. 4, the side frame outer panel 22 forming a part of the outer portion of the vehicle is discontinuous in a region from the roof rail portion 2 to the pillar portion 4. Similarly, the inner panel structure 24 is discontinuous in the same region. In these discontinuous regions, the closed section structure 26 is disposed, and both ends of the closed section structure 26 are respectively connected to the side frame outer panel 22.
And the inner panel structure 24 by welding or the like so as to constitute an integrated vehicle side structure 1. In the second embodiment, the same operation and effect as in the first embodiment can be obtained. Further, since the closed-section structure 26 serves as both the inner panel and the outer panel of the pillar, the number of parts can be reduced and the weight can be reduced accordingly.

Next, a third embodiment of the present invention will be described with reference to FIGS.
This will be described with reference to FIG. FIG. 5 is an overall perspective view showing a third embodiment of the present invention, FIG. 6 is a perspective view showing a closed section member used in the third embodiment, and FIG.
8 is a cross-sectional view taken along the line DD of FIG. 5, FIG. 9 is an enlarged view showing a portion E in FIG. 5,
FIG. 10 is an enlarged view showing a portion F in FIG. In the third embodiment, as shown in FIG.
Has a roof rail portion 2 and a pillar portion 4. Further, the side structure 1 of the vehicle includes a side frame outer panel 28 which is an outer panel member constituting an outer portion of the vehicle except for a region of the pillar portion 4, and a roof rail portion 2 of the side frame outer panel 28 on the vehicle body compartment side. An inner panel structure 30 which is an inner panel member constituting an inner portion of the vehicle is provided along the region to be removed and the region of the pillar portion 4.

As shown in FIGS. 5 and 6, the vehicle side structure 1 further includes a closed section member 32 provided in the area of the roof rail section 2 and the pillar section 4. A part (lower region) of the closed section member 32 is formed in the inner panel structure 30.
And the other portion (upper region) is joined to the side frame outer panel 28 by welding or the like, and the opposite portion of the joint portion constitutes the inner portion of the vehicle. It has become. As described above, the closed section structure 32 is provided in the area of the roof rail section 2A and the pillar section 4, and a part (lower section) of the closed section structure 32 constitutes a pillar outer section and the other section (upper section) is formed. It constitutes the roof rail inner part. Here, the side frame outer panel 28 and the inner panel structure 30 are formed by press molding, and the closed-section structure 32 is formed by the above-described tube hydroforming method.

Next, each cross-sectional shape of the side structure 1 of the vehicle will be described with reference to FIGS. First, as shown in FIG. 7, in the pillar portion 4 of the side structure 1 of the vehicle,
A closed section member 32 is provided on the outer side of the vehicle body of the inner panel structure 30.
Are joined, and the closed section member 32 is configured as a pillar outer portion. The inner panel structure 30 includes a flange portion 30a.
The front glass 14 is fixed to the flange 30a with an adhesive 16. Also windshield
A weatherstrip 18 is mounted between the end of 14 and the cabin side of the closed section member 32. As shown in FIG. 8, in the roof rail portion 2 of the side structure 1 of the vehicle, a side frame outer panel is provided outside the vehicle body of the closed cross section member 32.
28 are arranged via a predetermined space, and the closed section member 32 forms a roof rail inner part. The side frame outer panel 28 includes a flange portion 28a.
A seal member 21 is attached to 28a to contact a door (not shown) to seal the door opening.

As shown in FIG. 9, in the portion E, the inner panel structure 30 has a concave shape.
As shown in FIG. 10, in the F portion, the side frame outer panel 28 has a convex shape. According to the third embodiment of the present invention configured as described above, the closed section member 32 is provided in the area of the roof rail section 2 and the pillar section 4, and this closed section member 32 is partially (lower area). Are joined to the inner panel structure 30 and the outer surface of the joint portion constitutes a pillar outer portion, and the other portion (upper area) is joined to the side frame outer panel 28 and the inner surface of the joint portion constitutes a roof rail inner portion. Because
A part of the outer part and the inner part of the vehicle (specifically, the inner part of the pillar outer and the outer part of the roof rail) which has been conventionally required can be omitted.

Further, in the side structure 1 of the vehicle, the side frame outer panel 28, the inner panel structure 30, and the closed section member 32 are used in combination.
Body rigidity can be increased. Further, since the closed section member 32 is formed by the tube hydroforming method, the rigidity of the body can be increased and the weight can be reduced as compared with the conventional press working. As a result, according to the present embodiment, the pillar portion 4 can be formed to have a smaller shape than before, and does not hinder the driver's view. Further, since the inner panel structure 30 is used as a part of the side structure, the flange portion of the inner panel structure 30 can be effectively used as a seal portion or a joint portion with glass, for example, as shown in FIG. It can be used for

[0019]

As described above, according to the vehicle body structure of the present invention, it is possible to achieve both reduction in weight and improvement in rigidity of the body.

[Brief description of the drawings]

FIG. 1 is an overall perspective view showing a first embodiment of the present invention.

FIG. 2 is a cross section taken along line AA of FIG.

FIG. 3 is a sectional view taken along the line BB of FIG. 1;

FIG. 4 is an exploded perspective view showing a second embodiment of the present invention.

FIG. 5 is an overall perspective view showing a third embodiment of the present invention.

FIG. 6 is a perspective view showing a closed section member used in a third embodiment of the present invention.

FIG. 7 is a sectional view taken along the line CC of FIG. 5;

FIG. 8 is a sectional view taken along the line DD of FIG. 5;

FIG. 9 is an enlarged view showing a portion E in FIG. 5;

FIG. 10 is an enlarged view showing a portion F in FIG. 5;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Side structure of vehicle 2 Roof rail part 4 Pillar part 6 Side frame outer panel 8 Inner panel structure 10 Pillar inner panel 12 Outer closed section structure 14 Front glass 16 Adhesive 18 Weather strip 20 Closed section 21,33 Seal member 22 Side Frame outer panel 24 Inner panel structure 26 Closed section structure 28 Side frame outer panel 30 Inner panel structure 32 Closed section structure

Claims (9)

[Claims] 1. An inner panel structure constituting an inner portion of a vehicle, and an inner panel structure disposed along the vehicle body outer side of the inner panel structure and attached to the inner panel structure, and a part of the inner panel structure serves as an outer portion of the vehicle. An outer closed cross-section structure to be formed. 2. The inner panel structure is a continuous panel constituting at least a pillar inner, and the outer closed cross-section structure is continuously arranged over a region of a pillar portion of the inner panel structure. Item 2. The vehicle body structure of the vehicle according to item 1. 3. The vehicle body structure according to claim 2, wherein the inner panel structure has a flange portion, and a windshield is attached to the flange portion via an adhesive. 4. The vehicle body structure according to claim 1, wherein a part of said inner panel structure is discontinuous. 5. The vehicle body structure according to claim 2, wherein the outer closed cross-section structure is disposed continuously from the roof rail portion to the pillar portion. 6. The vehicle body structure according to claim 1, wherein the inner panel structure is formed by press forming, and the outer closed cross-sectional structure is formed by a tube hydroforming method. 7. A closed cross-section member, an inner panel member, and an outer panel member, wherein the closed cross-section member is partially joined to the inner panel member, and an outer portion of the vehicle is opposed to the joint. Make up,
A vehicle body structure for a vehicle, wherein the other portion is joined to the outer panel member, and an inner portion of the vehicle is formed facing the joined portion. 8. The structure according to claim 7, wherein the closed section structure is provided in a region of a pillar section and a roof rail section, and a part of the closed section structure forms a pillar outer section and another section forms a roof rail inner section. Vehicle body structure. 9. The vehicle body structure according to claim 7, wherein the inner panel member and the outer panel member are formed by press forming, and the closed cross-section structure is formed by a tube hydroforming method.