JP2000219153A - Body structure of automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce manufacturing cost by reduction of the number of part items, reliably improve body strength, and reduce the weight of the body. SOLUTION: In this body structure, an approximately U-shaped reinforcing member 7 integrally and continuously extending from the front part of a roof rail 2 to the front part of a side sill 4 through a center pillar 3 is provided, and reinforcing members 8, 9 are provided on the rear part in the roof rail 2 and on the rear part in the side sill 4. These reinforcing members 8, 9 are joined to the approximately U-shaped reinforcing member 7 to constitute an approximately H-shaped reinforcing member, and respective reinforcing members 7 to 9 are formed into pipe shapes by hydroforming.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle body structure, and more particularly, to a vehicle body structure provided with a reinforcing member extending continuously and integrally from a roof rail of a vehicle body to a center pillar and a side sill.

[0002]

2. Description of the Related Art Conventionally, in a vehicle body structure, a roof rail, a center pillar, and a side sill of a vehicle body side portion (side body) are reinforced through a reinforcing member joined thereto, and further, a roof rail reinforcing member is provided. The technique of joining the reinforcing member of the center pillar and the reinforcing member of the center pillar and the reinforcing member of the side sill to enhance the strength of the vehicle body has been widely put to practical use.

In this type of vehicle body structure, the reinforcing member is usually a plate-like member, and the joining of the reinforcing member of the roof rail and the reinforcing member of the center pillar and the joining of the reinforcing member of the center pillar and the reinforcing member of the side sill are performed by spot welding. The reinforcing member is provided with a welding flange for welding.

On the other hand, recently, Japanese Patent Application Laid-Open No. 8-337182
JP-A-9-150752, JP-A-10-9536
4, JP-A-10-95365, JP-A-9-3034
5, JP-A-10-138950, JP-A-8-192
As disclosed in Japanese Patent No. 238 or the like, a pipe member as a frame member constituting a part of a vehicle body is formed by expanding a steel or light metal pipe base material in a molding die by fluid pressure by hydroforming. The technique of molding the frame member has been put to practical use.

[0005]

In the conventional vehicle body structure, since the roof rail, the center pillar, and the side sill are each provided with a reinforcing member made of a separate plate member, the number of parts increases. In addition, since a joining flange is required for the reinforcing members in order to weld the reinforcing members together, the structure is complicated, the material cost of the reinforcing members is increased, and the manufacturing cost is disadvantageous. Moreover, in the case of a reinforcing member made of a plate member,
There is a limit in increasing the rigidity and strength compared to the reinforcing members with a closed cross section, and it is difficult to increase the bonding strength between the reinforcing members by simply spot welding the bonding between the reinforcing members.
It is difficult to sufficiently reinforce the connection between the roof rail and the center pillar and the connection between the center pillar and the side sill, which is disadvantageous in reducing the weight of the vehicle body.

Various techniques have been proposed for forming a vehicle body frame using the closed-section frame member formed by the hydroform, as described in the above-mentioned publication, but the closed-section frame formed by the hydroform has been proposed. The fact is that almost no technology for effectively reinforcing the vehicle body structure using members has been proposed.

An object of the present invention is to reduce the number of parts,
An object of the present invention is to provide a vehicle body structure to which a reinforcing structure capable of reliably increasing the rigidity of the vehicle body and reducing the weight is applied.

[0008]

The vehicle body structure according to claim 1, wherein an inverted L-shaped reinforcing member extending continuously and integrally from the front part of the roof rail of the vehicle body to the center pillar is provided. It is characterized by the following. The front part of the roof rail of the vehicle body and the center pillar can be reinforced by a common reinforcing member, so that the number of parts (the number of reinforcing members) can be reduced, and a conventional joining flange for welding the reinforcing member of the roof rail and the center pillar. Since the structure can be simplified by omitting the like, the material cost of the reinforcing member can be reduced,
The manufacturing cost can be reduced, and the connecting portion between the roof rail and the center pillar is sufficiently reinforced by the reinforcing member, so that the vehicle body strength can be reliably increased.

According to a second aspect of the present invention, there is provided an automobile body structure including an inverted L-shaped reinforcing member integrally and continuously extending from a rear portion of a roof rail of the vehicle body to a center pillar. . Since the rear part of the roof rail and the center pillar of the vehicle body can be reinforced by a common reinforcing member, the number of parts can be reduced, and the vehicle body strength can be reliably increased. Other functions are substantially the same as those of the first aspect.

According to a third aspect of the present invention, the vehicle body structure is provided with an L-shaped reinforcing member integrally and continuously extending from a front portion of a side sill of the vehicle body to a center pillar. . The front part of the side sill of the vehicle body and the center pillar can be reinforced with a common reinforcing member, so the number of parts can be reduced. In addition, the conventional joint flange for welding the reinforcing members of the side sill and the center pillar is omitted, and so on. Can be simplified, the material cost of the reinforcing member can be reduced, and the manufacturing cost can be reduced. In addition, the connecting portion between the side sill and the center pillar is sufficiently reinforced by the reinforcing member, so that the body strength is improved. It can certainly be increased.

According to a fourth aspect of the present invention, there is provided an automobile body structure comprising an L-shaped reinforcing member integrally and continuously extending from a rear portion of a side sill of the vehicle body to a center pillar. Since the rear portion of the side sill of the vehicle body and the center pillar can be reinforced by a common reinforcing member, the number of components can be reduced, and the vehicle body strength can be reliably increased. Other functions are substantially the same as those of the third aspect.

According to a fifth aspect of the present invention, there is provided a vehicle body structure having a substantially U-shaped reinforcing member integrally and continuously extending from a front portion of a roof rail of a vehicle body to a front portion of a side sill via a center pillar. It is characterized by the following. The front part of the roof rail and the front part of the center pillar and the side sill can be reinforced with a common reinforcing member, so that the number of parts can be reduced. The structure can be simplified by omitting the conventional joining flange for welding, etc., the material cost of the reinforcing member can be reduced, the manufacturing cost can be reduced, and the connecting portion between the roof rail and the center pillar, the side sill, Since the connecting portion between the vehicle and the center pillar is sufficiently reinforced, the strength of the vehicle body can be reliably increased.

According to a sixth aspect of the present invention, there is provided a vehicle body structure having a substantially U-shaped reinforcing member which extends integrally and continuously from the rear part of the roof rail of the vehicle body to the rear part of the side sill via the center pillar. It is assumed that. Since the rear part of the roof rail of the vehicle body, the rear part of the center pillar and the rear part of the side sill can be reinforced by a common reinforcing member, the number of parts can be reduced, and the strength of the vehicle body can be reliably increased. Other functions are substantially the same as those of the fifth aspect.

According to a seventh aspect of the present invention, the vehicle body structure further comprises a substantially Z-shaped reinforcing member integrally and continuously extending from the front portion of the roof rail of the vehicle body to the rear portion of the side sill via the center pillar. It is a feature. Since the front part of the roof rail, the center pillar, and the rear part of the side sill can be reinforced by a common reinforcing member, the number of parts can be reduced, and the strength of the vehicle body can be reliably increased. Other functions are substantially the same as those of the fifth aspect.

In the vehicle body structure according to the present invention, a substantially Z-shaped reinforcing member extending integrally and continuously from the rear portion of the roof rail of the vehicle body to the front portion of the side sill via the center pillar is provided. It is a feature. Since the rear part of the roof rail and the front part of the center pillar and the side sill can be reinforced with a common reinforcing member, the number of parts can be reduced and the strength of the vehicle body can be reliably increased. Other functions are substantially the same as those of the fifth aspect.

In a vehicle body structure according to a ninth aspect, a pair of substantially U-shaped reinforcing members integrally and continuously extending from a roof rail of the vehicle body to a side sill via a center pillar are joined to face each other. A substantially E-shaped reinforcement structure. The roof rail, center pillar, and side sill of the vehicle body can be reinforced with a pair of reinforcing members, so the number of components can be reduced. The structure can be simplified by omitting the joining flange of the material, the material cost of the reinforcing member can be reduced, and the manufacturing cost can be reduced.
Since the connection between the roof rail and the center pillar and the connection between the side sill and the center pillar are sufficiently reinforced, the strength of the vehicle body can be reliably increased.

According to a tenth aspect of the present invention, in the vehicle body structure according to the fifth aspect, second reinforcing members are provided at a rear portion in the roof rail and a rear portion in the side sill, respectively.
Is joined to the substantially U-shaped reinforcing member to form a substantially E-shaped reinforcing structure.
The rear portion of the roof rail and the rear portion of the side sill can be reliably reinforced by the second reinforcing member, and the vehicle body strength can be reliably increased by the substantially E-shaped reinforcing structure.

According to an eleventh aspect of the present invention, in the vehicle body structure according to the sixth aspect, a second reinforcing member is provided at each of a front portion in the roof rail and a front portion in the side sill.
Is joined to the substantially U-shaped reinforcing member to form a substantially E-shaped reinforcing structure.
The front portion of the roof rail and the front portion of the side sill can be reliably reinforced by the second reinforcing member. Other functions are substantially the same as those of the tenth aspect.

According to a twelfth aspect of the present invention, in the vehicle body structure according to the seventh aspect, second reinforcing members are provided at a rear portion in the roof rail and a front portion in the side sill, respectively.
Are joined to the substantially Z-shaped reinforcing member to form a substantially E-shaped reinforcing structure.
The second reinforcing member can reliably reinforce the rear part of the roof rail and the front part of the side sill. Other functions are substantially the same as those of the tenth aspect.

According to a thirteenth aspect of the present invention, in the vehicle body structure according to the eighth aspect, second reinforcing members are provided at a front portion in the roof rail and a rear portion in the side sill, respectively.
Are joined to the substantially Z-shaped reinforcing member to form a substantially E-shaped reinforcing structure.
The second reinforcing member can reliably reinforce the front part of the roof rail and the rear part of the side sill. Other functions are substantially the same as those of the tenth aspect.

According to a fourteenth aspect of the present invention, in the vehicle body structure according to any one of the first to thirteenth aspects, the reinforcing member is formed in a pipe shape. That is,
Since the reinforcing member can have a closed cross-sectional structure, the strength of the portion reinforced by the reinforcing member can be sufficiently increased, and the weight of the vehicle body can be significantly reduced because the reinforcing member can be lightened. .

According to a fifteenth aspect of the present invention, in the vehicle body structure of the first aspect, the reinforcing member is formed into a pipe by hydroforming. In other words, by hydroforming, it is possible to easily and inexpensively manufacture a pipe-shaped reinforcing member having excellent rigidity, and it is possible to sufficiently increase the strength of a portion reinforced by the pipe-shaped reinforcing member, and In addition, since the weight of the reinforcing member can be reduced, the weight of the vehicle body can be significantly reduced.

[0023]

Embodiments of the present invention will be described below with reference to the drawings. In this embodiment, the present invention is applied to a side body of a vehicle body of a passenger car. Note that the right side body of the vehicle body will be described, and description of the left side body will be omitted. Note that the left side in the forward direction of the vehicle is the passenger compartment side. As shown in FIG. 1, the side body 1 of the vehicle body includes a roof rail 2, a center pillar 3, a side sill 4, a front pillar 5, a quarter panel 6, a pipe-shaped reinforcing member 7 made of steel or light metal.
It has a substantially E-shaped reinforcement structure including -9.

As shown in FIGS. 1, 2 and 3, the roof rail 2 having an open cross section has an outer panel 10 and a pair of connecting plates 11 and 12. The connecting plates 11 and 12 are for fixing the reinforcing members 7 and 8 having a closed cross section to the roof rail 2. The connecting plates 11 and 12 are joined to the inner surface of the outer panel 10 on both front and rear sides with respect to the center pillar 3, respectively. The reinforcing member 8 is fixed in a surface contact manner by welding or the like. Although not shown, the upper horizontal portion 30 of the reinforcing member 7 is connected to the connecting plate 11.
Are fixed in a surface contact manner by welding or the like.

As shown in FIGS. 1, 4 and 5, the center pillar 3 having an open cross section has an outer panel 15 and a pair of upper and lower connecting plates 16 and 17. The connecting plates 16, 17 are for fixing the reinforcing member 7 to the center pillar 3, and are joined to the inner surface of the outer panel 15.
The vertical portions 31 of the reinforcing member 7 are fixed to the respective members 7 by welding or the like in surface contact.

As shown in FIGS. 1, 6, and 7, the open side sill 4 has an outer panel 20 and a pair of connecting plates 21 and 22. The connecting plates 21 and 22 are for fixing the reinforcing members 7 and 9 having a closed cross section to the side sill 4.
The front and rear sides of the center pillar 3 are respectively joined to the inner surface of the outer panel 20, and the reinforcing member 9 is fixed to the connecting plate 22 in a surface contact manner by welding or the like. Although not shown, the lower horizontal portion 32 of the reinforcing member 7 is fixed to the connecting plate 21 in a face-to-face manner by welding or the like.

Next, the reinforcing structure will be described. As shown in FIG. 1, the reinforcing member 7 is integrally and continuously extended from the front part of the roof rail 2 through the center pillar 3 to the front part of the side sill 4. It is formed in a substantially U-shape including the horizontal portion 31, and as described above, the roof rail 2, the center pillar 3, the side sill 4
Fixedly attached to

The reinforcing member 8 is provided at the rear part in the roof rail 2 in the front-rear direction, and is fixed to the roof rail 2, and the front end of the reinforcing member 8 is joined to the rear surface of the upper end of the reinforcing member 7. The reinforcing member 9 is provided at the rear part in the side sill 4 in the front-rear direction, and is fixed to the side sill 4, and the front end of the reinforcing member 9 is joined to the rear surface of the lower end of the reinforcing member 7 to form a substantially E-shaped. Is constructed.

Each of the reinforcing members 7 to 9 is formed into a pipe by hydroforming. Here, a method of forming the hydroforming device 40 and the reinforcing members 7 to 9 will be described. As shown in FIG. 8, the hydroforming apparatus 40 includes a hydraulic press 41 and a hydraulic press 41.
And a hydraulic pressure supply unit 45 for supplying a hydraulic pressure to at least one of the upper die 43 and the lower die 44 of the molding die 42 attached to the dies 42.

When a typical pipe-shaped reinforcing member 47 having a rectangular cross section is formed by the hydroforming apparatus 40, as shown in FIG.
6 is set in the molding die 42, and the other end of the pipe substrate 46 is passed through an oil passage in the molding die 42, for example, in a state where one end of the pipe substrate 46 is sealed by the hydraulic pressure supply unit 45. Supply hydraulic pressure to the inside. Then, as shown in FIG. 10, a hydraulic pressure (for example, 50
0 kgf to 600 kgf) acts, the circular pipe base material 46 is expanded and deformed and comes into close contact with the inner surface of the mold, whereby the reinforcing member 47 is formed.

In this embodiment, since the reinforcing members 7 to 9 have different cross-sectional shapes depending on the respective portions, a molding die corresponding thereto is used, but the basic molding method is the same as described above. is there. Further, in the case where the reinforcing members 7 to 9 are formed of pipe base materials having different wall thicknesses and materials in view of strength and the like, as shown in FIG. By performing processing, an integral reinforcing member 52 can be formed as shown in FIG.
As shown in FIG. 3, the ends of the pipe base materials 55 and 56 are
The hydroforming process is performed in a state where the reinforcing member 58 is fitted and connected to the inside 7, so that an integral reinforcing member 58 can be formed as shown in FIG.

According to the vehicle body structure, the substantially U-shaped reinforcing member 7 is provided which extends continuously from the front part of the roof rail 2 through the center pillar 3 to the front part of the side sill 4. Front part of roof rail 2 and center pillar 3
And the front portion of the side sill 4 can be reinforced by the common reinforcing member 7, so that the number of parts can be reduced.
The structure is simplified by omitting the joining flanges for welding the reinforcing members of the center pillar 3 and the side pillars 4 and the reinforcing members of the side pillars 4 and the center pillar 3, reducing the material cost of the reinforcing member 7 and reducing the manufacturing cost. In addition, the roof rail 2 and the center pillar 3
And the rigidity of the connecting portion between the side sill 4 and the center pillar 3 can be sufficiently increased, and the vehicle body strength can be reliably increased.

Further, reinforcing members 8 and 9 are provided at a rear portion in the roof rail 2 and a rear portion in the side sill 4, respectively. These reinforcing members 8 and 9 are joined to a substantially U-shaped reinforcing member 7 to form a substantially E-shaped. Since the reinforcing structure is formed, the rear portions of the roof rail 2 and the rear portion of the side sill 4 can be surely reinforced by the reinforcing members 8 and 9, and furthermore, by the substantially E-shaped reinforcing structure,
The vehicle body strength can be more reliably increased.

Since the reinforcing members 7 to 9 are formed into a pipe shape by hydroforming, the reinforcing members 7 to 9 are excellent in rigidity and strength, and the rigidity of the roof rail 2, the center pillar 3, and the side sill 4 is improved by the reinforcing members 7 to 9. Since the strength can be sufficiently increased, and the reinforcing members 7 to 9 can be reduced in weight, the reinforcing structure can be reduced in weight.

Next, a modified embodiment in which the above-described embodiment is partially modified will be described. However, basically the same components as those of the above-described embodiment are denoted by the same reference numerals, and description thereof is omitted.

1] As shown in FIGS. 15 to 18, inner panels 60 to 62 joined to outer panels 10, 15, and 20 are provided on the roof rail 2, center pillar 3, and side sill 4 of the side body 1A, respectively. The reinforcing members 7 to 9 may be fixed to the inner panels 60 to 62 by welding or the like.

2] As shown in FIG. 19, a substantially U-shaped reinforcing member 7B extending integrally and continuously from the rear portion of the roof rail 2 of the side body 1B to the rear portion of the side sill 4 via the center pillar 3 is provided. At the same time, reinforcing members 8B and 8B are provided at the front part in the roof rail 2 and the front part in the side sill 4.
9B are provided, and these reinforcing members 8B and 9B are joined to a substantially U-shaped reinforcing member 7B to form a substantially E-shaped reinforcing structure. The reinforcing member 7B and the reinforcing members 8B and 9B are formed in a pipe shape by hydroforming as in the case of the embodiment.

3] As shown in FIG. 20, a substantially Z-shaped reinforcing member 7C integrally and continuously extending from the front part of the roof rail 2 of the side body 1C through the center pillar 3 to the rear part of the side sill 4. And reinforcing members 8C, 8C at the rear part in the roof rail 2 and the front part in the side sill 4.
9C are provided, and these reinforcing members 8C and 9C are joined to a substantially Z-shaped reinforcing member 7C to form a substantially E-shaped reinforcing structure. The reinforcing member 7C and the reinforcing members 8C and 9C are formed in a pipe shape by hydroforming, as in the embodiment.

4] As shown in FIG. 21, a substantially Z-shaped reinforcing member 7D integrally and continuously extending from the rear portion of the roof rail 2 of the side body 1D through the center pillar 3 to the front portion of the side sill 4. (Formed in a pipe shape by hydroforming), and reinforcing members 8 are provided on the front part in the roof rail 2 and the rear part in the side sill 4.
D and 9D (formed in a pipe shape by hydroforming) are provided respectively, and these reinforcing members 8D and 9D are joined to a substantially Z-shaped reinforcing member 7D to form a substantially E-shaped reinforcing structure. Is also good.

5] As shown in FIGS. 22 and 23, a substantially U-shape extending integrally from the front part of the roof rail 2 of the side body 1E to the front part of the side sill 4 via the center pillar 3 is provided. (Formed in a pipe shape by hydroforming), and a substantially U-shape extending integrally from the rear part of the roof rail 2 to the rear part of the side sill 4 via the center pillar 3. (Formed in a pipe shape by hydroforming) is provided, and the pair of substantially U-shaped reinforcing members 7Ea and 7Eb are joined to each other so as to form a substantially E-shaped reinforcing structure. You may comprise. Center pillar 3
Has an outer panel 15E and an inner panel (or connecting plate) 15E, and the reinforcing members 7Ea, 7Eb joined to the inner panel 15E are fixed to each other by welding or the like in surface contact.

6] As shown in FIG. 24, an inverted L-shaped reinforcing member 7F integrally and continuously extending from the front part of the roof rail 2 of the side body 1F to the center pillar 3.
(Formed in a pipe shape by hydroforming), a reinforcing member 8F is provided at a rear portion in the roof rail 2, and a reinforcing member 9F extending from a front portion to a rear portion in the side sill 4 is provided. 9F (formed into a pipe by hydroforming)
May be joined to an inverted L-shaped reinforcing member 7F to form a substantially E-shaped reinforcing structure.

7) An inverted L-shaped reinforcing member (formed in a pipe shape by hydroforming) extending continuously and integrally from the rear portion of the roof rail 2 to the center pillar 3 or the side sill 4 An L-shaped reinforcing member (formed in a pipe shape by hydroforming) integrally and continuously extending from the front portion to the center pillar 3 or from the rear portion of the side sill 4 to the center pillar 3. And an L-shaped reinforcing member (formed in a pipe shape by hydroforming) provided integrally and continuously, and a second reinforcing member corresponding to the reinforcing member (formed in a pipe shape by hydroforming) May be provided and joined to the reinforcing member to form a substantially E-shaped reinforcing structure.

It should be noted that the vehicle body structure of the present invention is not limited to the vehicle body structures of the above-described embodiments and modifications, and various modifications may be added without departing from the spirit of the present invention.
Of course, it can be applied to various vehicle body structures.

[0044]

According to the vehicle body structure of the first aspect, since the inverted L-shaped reinforcing member extending integrally and continuously from the front portion of the roof rail of the vehicle body to the center pillar is provided, the roof rail is provided. The front part and the center pillar can be reinforced with a common reinforcing member, reducing the number of parts,
Furthermore, the structure can be simplified by omitting a connecting flange for welding the reinforcing members of the roof rail and the center pillar to each other, and the material cost of the reinforcing member can be reduced, and the manufacturing cost can be reduced. Since the rigidity of the connection between the roof rail and the center pillar can be sufficiently increased, the rigidity of the vehicle body can be reliably increased.

According to the vehicle body structure of the second aspect, the inverted L-shaped reinforcing member extending integrally and continuously from the rear portion of the roof rail of the vehicle body to the center pillar is provided. The center pillar can be reinforced with a common reinforcing member, and the rigidity of the vehicle body can be reliably increased. The other effects are substantially the same as the effects of the first aspect.

According to the vehicle body structure of the third aspect, since the L-shaped reinforcing member extending integrally and continuously from the front portion of the side sill to the center pillar of the vehicle body is provided, the front portion of the side sill is provided. And the center pillar can be reinforced with a common reinforcing member, so that the number of parts can be reduced.Furthermore, the structure can be simplified by omitting the joining flange for welding the side sill and the reinforcing member of the center pillar to each other, and simplifying the structure of the reinforcing member The material cost can be reduced, the production cost can be reduced, and the rigidity of the connecting portion between the side sill and the center pillar can be sufficiently increased by the reinforcing member, so that the rigidity of the vehicle body can be reliably increased.

According to the vehicle body structure of the fourth aspect, since the L-shaped reinforcing member extending integrally and continuously from the rear part of the side sill of the vehicle body to the center pillar is provided, the rear part of the side sill and the center are provided. Since the pillars can be reinforced with a common reinforcing member, the number of parts can be reduced, and the rigidity of the vehicle body can be reliably increased. Other claim 3
The effect is substantially the same as the effect described above.

According to the vehicle body structure of the fifth aspect, a substantially U-shaped reinforcing member is provided which extends continuously from the front part of the roof rail of the vehicle body to the front part of the side sill via the center pillar. Therefore, the front part of the roof rail, the center pillar, and the front part of the side sill can be reinforced by a common reinforcing member, so that the number of parts can be reduced. The structure can be simplified by omitting the joining flange for welding, etc., the material cost of the reinforcing member can be reduced, the manufacturing cost can be reduced, and the connecting portion between the roof rail and the center pillar can be reduced by this reinforcing member. , The rigidity of the connection between the side sill and the center pillar can be sufficiently increased, so that the rigidity of the vehicle body can be reliably increased.

According to the vehicle body structure of the sixth aspect, the substantially U-shaped reinforcing member is provided which extends continuously from the rear part of the roof rail of the vehicle body to the rear part of the side sill via the center pillar. Since the rear part of the roof rail, the rear part of the center pillar and the rear part of the side sill can be reinforced by a common reinforcing member, the number of parts can be reduced, and the rigidity of the vehicle body can be reliably increased. The other effects are substantially the same as the effects of the fifth aspect.

According to the vehicle body structure of the present invention, a substantially Z-shaped reinforcing member is provided which extends continuously from the front part of the roof rail of the vehicle body to the rear part of the side sill via the center pillar. Therefore, the front part of the roof rail, the center pillar, and the rear part of the side sill can be reinforced with a common reinforcing member, so that the number of parts can be reduced and the rigidity of the vehicle body can be reliably increased. The other effects are substantially the same as the effects of the fifth aspect.

According to the vehicle body structure of the eighth aspect, a substantially Z-shaped reinforcing member is provided which extends continuously from the rear part of the roof rail of the vehicle body to the front part of the side sill via the center pillar. Therefore, the rear part of the roof rail, the front part of the center pillar and the front part of the side sill can be reinforced by the common reinforcing member, so that the number of parts can be reduced and the rigidity of the vehicle body can be reliably increased. The other effects are substantially the same as the effects of the fifth aspect.

According to the vehicle body structure of the ninth aspect, a pair of substantially U-shaped reinforcing members integrally and continuously extending from the roof rail of the vehicle body to the side sill via the center pillar are opposed to each other. The roof rail, the center pillar and the side sill can be reinforced with a pair of reinforcing members, so that the number of parts can be reduced. Further, the reinforcing members of the roof rail and the center pillar and the side sills are joined together. The structure can be simplified by omitting the joining flanges for welding the reinforcing members of the center pillar and the center pillar, and the material cost of the reinforcing members can be reduced, the manufacturing cost can be reduced, and the roof rail and the center pillar can be connected. Since the rigidity of the connecting portion between the section and the side sill and the center pillar can be sufficiently increased, the rigidity of the vehicle body can be reliably increased.

According to the vehicle body structure of the tenth aspect,
The same effect as that of claim 5 is exerted, except that a second reinforcing member is provided at a rear portion in the roof rail and a rear portion in the side sill,
Since the second reinforcing member is joined to the substantially U-shaped reinforcing member to form a substantially E-shaped reinforcing structure, the rear portion of the roof rail and the rear portion of the side sill can be reliably reinforced by the second reinforcing member. Moreover, the rigidity of the vehicle body can be reliably increased by the substantially E-shaped reinforcing structure.

According to the vehicle body structure of the eleventh aspect,
The same effect as that of claim 6 is obtained, but a second reinforcing member is provided at each of a front portion in the roof rail and a front portion in the side sill,
Since these second reinforcing members are joined to the substantially U-shaped reinforcing member to form a substantially E-shaped reinforcing structure, the second reinforcing member ensures that the front portion of the roof rail and the front portion of the side sill are securely formed. Can be reinforced. Other effects are substantially the same as the effects of the tenth aspect.

According to the vehicle body structure of the twelfth aspect,
The same effect as that of the seventh aspect is obtained, but a second reinforcing member is provided at each of a rear portion in the roof rail and a front portion in the side sill,
Since these second reinforcing members are joined to the substantially Z-shaped reinforcing member to form a substantially E-shaped reinforcing structure, the second reinforcing member surely reinforces the rear portion of the roof rail and the front portion of the side sill. it can. Other effects are substantially the same as the effects of the tenth aspect.

According to the vehicle body structure of claim 13,
The same effect as that of the eighth aspect is obtained, but a second reinforcing member is provided at each of a front portion in the roof rail and a rear portion in the side sill,
Since these second reinforcing members are joined to the substantially Z-shaped reinforcing member to form a substantially E-shaped reinforcing structure, the second reinforcing member surely reinforces the front part of the roof rail and the rear part of the side sill. it can. Other effects are substantially the same as the effects of the tenth aspect.

According to the vehicle body structure of the fourteenth aspect,
The same effect as any one of claims 1 to 13 is obtained, but since the reinforcing member is formed in a pipe shape, the rigidity of the portion reinforced by the pipe-shaped reinforcing member can be sufficiently increased, and furthermore, the reinforcement Since the weight of the member can be reduced, the weight of the vehicle body can be reduced.

According to the vehicle body structure of claim 15,
The same effect as any one of claims 1 to 14 is obtained, but since the reinforcing member is formed into a pipe by hydroforming, the reinforcing member can be formed easily and inexpensively into a pipe, and the reinforcing member can be reinforced with the pipe-shaped reinforcing member. It is possible to sufficiently increase the rigidity of the portion provided and to reduce the weight of the reinforcing member, so that the weight of the vehicle body can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view from the inside of a side body according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is a sectional view taken along line III-III in FIG. 1;

FIG. 4 is a sectional view taken along line IV-IV of FIG. 1;

FIG. 5 is a sectional view taken along line VV of FIG. 1;

FIG. 6 is a sectional view taken along line VI-VI of FIG. 1;

FIG. 7 is a sectional view taken along line VII-VII of FIG. 1;

FIG. 8 is a front view of the hydroforming apparatus.

FIG. 9 is a cross-sectional view of a pipe base material before hydroforming.

FIG. 10 is a cross-sectional view of the reinforcing member after hydroforming.

FIG. 11 is a perspective view of a pair of pipe base materials before hydroforming.

FIG. 12 is a perspective view of a reinforcing member formed from the pair of pipe base materials of FIG. 11;

FIG. 13 is a perspective view of a pair of pipe base materials before hydroforming.

FIG. 14 is a perspective view of a reinforcing member formed from the pair of pipe base materials of FIG.

FIG. 15 is a perspective view from the inside of a vehicle body door side portion according to a modified embodiment.

16 is a sectional view taken along line XVI-XVI in FIG.

17 is a sectional view taken along line XVII-XVII in FIG.

18 is a sectional view taken along line XVIII-XVIII in FIG.

FIG. 19 is a perspective view from the inside of a side body according to a modified embodiment.

FIG. 20 is a perspective view from the inside of a side body according to a modified embodiment.

FIG. 21 is a perspective view from the inside of a side body according to a modified embodiment.

FIG. 22 is a perspective view from the inside of a side body according to a modified embodiment.

FIG. 23 is a sectional view taken along line XXIII-XXIII of FIG. 22;

FIG. 24 is a perspective view from the inside of a side body according to a modified embodiment.

[Explanation of symbols]

1, 1A-1F Side body 2 Roof rail 3 Center pillar 4 Side sill 7-9, 7B-9B, 7C-9C, 7D-9D, 7E
a, 7Eb, 7F-9F reinforcing member

Claims (15)

[Claims] 1. A vehicle body structure for an automobile, wherein an inverted L-shaped reinforcing member extending integrally and continuously from a front portion of a roof rail of the vehicle body to a center pillar is provided. . 2. The vehicle body structure of an automobile according to claim 1, further comprising an inverted L-shaped reinforcing member integrally and continuously extending from a rear portion of a roof rail of the vehicle body to a center pillar. 3. An automobile body structure according to claim 1, further comprising an L-shaped reinforcing member integrally and continuously extending from a front portion of a side sill of the vehicle body to a center pillar. 4. The vehicle body structure of an automobile according to claim 1, further comprising an L-shaped reinforcing member integrally and continuously extending from a rear portion of a side sill of the vehicle body to a center pillar. 5. The vehicle body structure according to claim 1, further comprising a substantially U-shaped reinforcing member integrally and continuously extending from a front portion of a roof rail of the vehicle body to a front portion of a side sill via a center pillar. The body structure of the car. 6. A vehicle body structure comprising a substantially U-shaped reinforcing member integrally and continuously extending from a rear portion of a roof rail of a vehicle body to a rear portion of a side sill via a center pillar. Car body structure. 7. A vehicle body structure for a vehicle, further comprising a substantially Z-shaped reinforcing member integrally and continuously extending from a front portion of a roof rail of the vehicle body to a rear portion of the side sill via a center pillar. Car body structure. 8. A vehicle body structure in which a substantially Z-shaped reinforcing member is provided which extends integrally and continuously from a rear portion of a roof rail of the vehicle body to a front portion of a side sill via a center pillar. Car body structure. 9. In a vehicle body structure of an automobile, a pair of substantially U-shaped reinforcing members integrally and continuously extending from a roof rail of the vehicle body to a side sill through a center pillar are joined to each other in a mutually opposing manner. An automobile body structure comprising an E-shaped reinforcement structure. 10. A substantially reinforcing member having a second reinforcing member provided at a rear portion of the roof rail and a rear portion of the side sill, and the second reinforcing member is joined to the substantially U-shaped reinforcing member. The vehicle body structure according to claim 5, wherein the vehicle body structure is configured. 11. A second reinforcing member is provided at each of a front portion in the roof rail and a front portion in the side sill, and these second reinforcing members are joined to the substantially U-shaped reinforcing member to form a substantially E-shaped member. 7. The vehicle body structure of an automobile according to claim 6, wherein said reinforcing structure is constituted. 12. A second reinforcing member is provided at each of a rear portion of the roof rail and a front portion of the side sill, and these second reinforcing members are joined to the substantially Z-shaped reinforcing member to form a substantially E-shaped reinforcing member. The vehicle body structure according to claim 7, wherein a reinforcement structure is configured. 13. A second reinforcing member is provided at each of a front portion in the roof rail and a rear portion in the side sill, and these second reinforcing members are joined to the substantially Z-shaped reinforcing member to form a substantially E-shaped reinforcing member. 9. The vehicle body structure according to claim 8, wherein a reinforcement structure is configured. 14. The vehicle body structure according to claim 1, wherein said reinforcing member is formed in a pipe shape. 15. The reinforcing member is formed into a pipe shape by hydroforming.
15. The vehicle body structure according to any one of claims 14 to 14.