JPH0621823Y2 - Car body front structure - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a vehicle body front portion structure that constitutes, for example, an engine room of an automobile, and particularly relates to an apron side portion capable of improving rigidity and productivity. And a joint structure of the cowl side portion.

[Conventional technology]

Generally, the front part of the vehicle body of an automobile is
Connect the dash panel 41 and the cowl panel 42 between the left and right front pillars 40, and
A cowl side portion 48 formed at the right end is connected to a rear end portion of an apron side portion 43 extending in the vehicle front-rear direction, and a radiator support 44, a front cross member 45, and the like are connected between front ends of the apron side portion 43. It is configured. Since an engine unit, a front wheel suspension device, etc. are mounted on the front part of the vehicle body, high strength and rigidity are required. For example, a spring support 46 that supports the upper end of the front wheel suspension device is formed in the apron side portion 43. Since vibration from the road surface and the weight of the vehicle body are added to the spring support 46, the plate of the support 46 is formed. The thickness and the side members 47 having a box shape with a closed cross-section are connected to secure strength and rigidity.

As a structure of such an apron side portion 43, conventionally,
For example, there is one shown in FIG. FIG. 6 (a) shows that a flange portion 30a is formed on the outer edge of the spring support 30,
This is an example in which the flange portion 30a is joined to the inner wall of the side member 31 having a vertically long closed cross section. Also, FIG. 6 (b)
Extends the outer edge of the spring support 32 outward, and the side member 3 having a hat-shaped cross section is provided on the upper portion of the extension 32a.
3 so as to cover the above-mentioned extension part 32a.
Is an example in which an apron reinforcement hose 34 having a U-shaped vertical cross section is joined to the lower part of the.

Here, the rear end portion of the apron side portion 43 is connected to the cowl side portion 48 of the cowl panel 42 of FIG. 5, but as the structure of the cowl side portion,
Conventionally, for example, there is one shown in FIG. The plate 35 is disposed between the cowl upper 42a and the cowl inner 42b of the cowl panel 42, the cowl side 36 is joined to the joint between the inner 42b and the plate 35, and the upper flange 35a and the cowl of the plate 35 are joined together. A cowl rein hose 37 is joined to the side 36 so as to cover it, thereby forming a vertically long closed cross section.

[Problems to be solved by the invention]

By the way, in order to improve the rigidity of the apron side portion 43 and the cowl side portion 48, the side members 31, 3
It is conceivable to increase the vertical cross-sectional size by the 3 and the cowl reinforcements 37, but in the case of FIG. 6 (b), the vertical size cannot be increased so much that the rigidity cannot be so high.

On the other hand, in the case of the structures shown in FIGS. 6 (a) and 7, the vertical dimension can be increased and the rigidity can be improved.
However, in the conventional structure of the apron side portion of FIG. 6 (a), it is necessary to increase the plate thickness of the side member 31 in order to further improve the rigidity. Further, the structure of the cowl side portion of FIG. 7 is a structure in which the plate 35 and the cowl side 36 are assembled to the cowl panel 42 in the main process and then the cowl reinforce hose 37 is mounted, so that the reinhose 37 is troublesome. It is necessary to connect them by arc welding, which takes a long time, and there is a problem that productivity is low.

An object of the present invention is to provide a vehicle body front structure capable of enlarging longitudinal cross-sectional shapes of an apron side portion and a cowl side portion to further improve rigidity and improving productivity by eliminating arc welding. Especially.

[Means for solving problems]

According to the present invention, an outer edge of a spring support that supports an upper end of a front wheel suspension is bent upward to form an extension portion, the extension portion is joined to an upper flange of an apron rein hose, and a lower flange of the apron rein hose is attached. It is located below the base of the extension, and the lower flange and the base of the extension are connected by a support member to form an apron side having a vertically long closed cross section, and the end of the cowl inner of the cowl panel is lowered. To bend to form a bend,
The bent portion is sandwiched between the plate, the lower portion of the cowl side, and the upper flange to be joined to each other, the upper flange of the cowl rein hose is joined to the upper flange of the plate, and the lower flange of the cowl reinhose is joined to the cowl inner. Then, a cowl side portion having a vertically long closed cross section is formed, and the cowl side and the apron side portion are joined to each other.

[Action]

According to the vehicle body front structure of the present invention, the extension of the outer edge of the spring support is joined to the upper flange of the apron rein hose, and the base of the extension is positioned below the apron rein hose base. Since the apron side part is formed by joining the lower flange and the lower flange with a support member, the vertical closed shape of the apron side part can be enlarged, and this closed cross section uses a thick spring support. Since it is configured, the rigidity of this apron side part can be greatly improved.

Further, since the end portion of the cowl inner is bent downward, and the plate and the cowl reinose hose are connected to the cowl side portion to form the cowl side portion, the cross sectional shape in the vertical direction of the cowl side portion is also enlarged, and the high rigidity and Become. Moreover, since the apron side portions having the same high rigidity as the cowl side portion are joined together, the rigidity of the entire front portion of the vehicle body can be improved.

Further, in the present invention, since the lower flange of the plate is joined to the bent portion of the cowl inner and the upper flange of the cowl rein hose is joined to the upper flange of the plate,
Since the flange portions of the plate and the bent portion and the cowl rein hose can be joined by spot welding, arc welding as in the conventional case can be eliminated and the productivity can be improved accordingly.

〔Example〕

 An embodiment of the present invention will be described below with reference to the drawings.

1 to 4 are views for explaining a vehicle body front structure according to an embodiment of the present invention.

In FIG. 1, reference numeral 1 denotes a front portion of a vehicle body of an automobile. A cowl panel 3 extending in the vehicle width direction is connected between the left and right front pillars 2 and each cowl formed at both ends of the panel 3. A rear end portion 5a of an apron side portion 5 extending in the vehicle front-rear direction is connected to the side portion 4, and a radiator support 6 extending in the vehicle width direction is connected between the front end portions 5b of the left and right apron side portions 5, With this structure, the engine room 1a is formed, and the basic structure is the fifth.
It is similar to the figure.

As shown in FIG. 2, the apron side part 5 is connected to a spring support 7 having a tire house part 7a that bulges toward the engine room 1a side, and is connected to the inside of the tire house part 7a, and is connected to the engine room 1a. An apron 8 for partitioning the front wheel 1b on the outer side of the vehicle body and an apron reinforcement hose 9 extending in the front-rear direction of the vehicle body and having an L-shaped vertical section are configured.

A front wheel suspension device 10 is provided on the upper surface of the spring support 7.
A bowl-shaped support portion 7b that supports the upper end of the is formed to project. An extension portion 7c that extends upward and bends outward under the hood 11 is integrally formed at the outer edge of the support portion 7b in the vehicle width direction. A flange 7d is formed at the outer end of the extension portion 7c. Is bent and formed. Further, the upper flange 9a of the apron rein hose 9 is spot welded to the flange 7d, and the lower end 12b of the flat plate-shaped support member 12 is spot welded to the lower flange 9b of the apron rein hose 9. ing. Further, the upper end portion 12 of the support member 12
The a is spot-welded to the base portion of the extension 7c of the spring support 7. As a result, the extension 7
c, the apron reinforcement hose 9 and the support member 12 form a vertically long closed cross section. Furthermore, FIG. 2 (a)
As shown in, the front portion 9c of the apron reinforcement hose 9 is
The front part 8a of the apron 8 is spot-welded to this, and a vertically long closed cross section is formed by these 9c and 8a.

As shown in FIG. 3, the cowl side portion 4 is configured by disposing a cowl rein hose 17 between the cowl upper 15 and the cowl inner 16 of the cowl panel 3 and disposing a plate 18 on the outside thereof. ing. A bent portion 16a that is bent downward and extends substantially horizontally is integrally formed at the outer end of the cowl inner 16. This bent part 1
The lower flange 18a of the plate 18 is on the upper surface of the outer end of 6a, and the upper flange 1 of the cowl side 19 is on the lower surface.
9a are in contact with each other, and these are joined by spot welding. In addition, the upper flange 1 of the plate 18
8b is an upper flange 1 of the cowl reinforcement hose 17 described above.
7b, the lower flange 17a thereof has the bent portion 16a.
It is joined by spot welding to the base part of. As a result, the bent portion 16a, the plate 18 and the cowl reinforcement hose 17 form a vertically long closed cross section.

Further, the rear end portion of the cowl side portion 4 is connected to the front pillar 2, and a reinforcing cowl bracket 20 is provided between the cowl inner 16, the cowl side 19 of the ucar side portion 4 and the front pillar 2. It is arranged.

A flange 2 is provided on the front edge of the cowl side portion 4 and the rear edge of the apron side portion 5 facing each other.
1, 21 (see FIG. 1) are formed, and the flanges 21 are joined together by spot welding, whereby the vehicle body front portion 1 of the present embodiment is formed.

Next, the function and effect of this embodiment will be described.

According to the structure of the vehicle body front portion 1 of this embodiment, the extension portion 7c obtained by extending the outer edge of the spring support 7 upward is spot-welded to the apron rein hose 9, and the extension portion 7c and the spot welding 9 are supported by the support member 12. Since the apron side part 5 is formed by joining with, the vertical cross-sectional shape can be enlarged without any restriction in the vertical direction as shown in FIG. 6 (b).
Moreover, since the spring support 7 having a large plate thickness is extended to form the closed cross section, the rigidity of the apron side portion 5 can be further improved as compared with the conventional structure.

Further, the bent portion 16a formed by bending the end portion of the cowl inner 16 downward is joined to the plate 18, and
Since the plate 18 and the cowl inner 16 are joined by the cowl rein hose 17 to form the cowl side portion 4,
The vertical cross-sectional shape thereof can be enlarged, and the rigidity of the cowl side portion 4 can be improved accordingly. Since the cowl side portion 4 and the apron side portion 5 having high rigidity are joined to each other, a vertically long closed cross section can be formed in the entire front-rear direction of the vehicle body, and the rigidity of the entire vehicle body front portion 1 can be improved.

Further, in this embodiment, since the bent portion 16a of the cowl inner 16 and the lower flange 18a of the plate 18 and the upper flange 19a of the cowl side 19 are spot-welded, it is possible to eliminate the conventional arc welding which is troublesome, and to produce only that much. You can improve the property.

Furthermore, in the present embodiment, the cowl bracket 20 is arranged at the joint between the cowl side portion 4 and the front pillar 2, so that the rigidity of the portion can be improved. Moreover, since the flanges bent outward are joined by spot welding, the conventional work hole can be eliminated and the workability can be improved.

[Effect of device]

As described above, according to the vehicle body front structure of the present invention, the apron having the vertically long closed cross section includes the extension formed on the outer edge of the spring support, the apron extending downward from the base of the spring support, and the support member. In addition to forming the side part, a cowl side part having a vertically long closed cross section is formed by the bent part in which the end of the cowl inner is bent downward, the plate and the cowl reinforcement, and both are joined in the vehicle body front-rear direction to improve rigidity. It has the effect of improving productivity and the effect of improving productivity.

[Brief description of drawings]

1 to 4 are views for explaining a vehicle body front structure according to an embodiment of the present invention. FIG. 1 is a perspective view of the vehicle body front seen from the outside, and FIG. (a) is I in Fig. 1
2a-IIa line sectional view, FIG. 2 (b) is a IIb-IIb line sectional view of FIG. 1, FIG. 2 (c) is a IIc-IIc line sectional view of FIG. 1, and FIG. 3 (a) is Fig. 1 is a sectional view taken along the line IIIa-IIIa, Fig. 3 (b) is a sectional view taken along the line IIIb-IIIb in Fig. 1, Fig. 4 is a perspective view of the cowl side portion viewed from the inside of the vehicle, and Fig. 5 is a general view. 6A and 6B are sectional views showing a conventional apron side portion, and FIG. 7 is a sectional view showing a cowl side portion thereof. In the drawings, 1 is a front part of a vehicle body, 3 is a cowl panel, 4 is a cowl side part, 5 is an apron side part, 7 is a spring support, 7c is an extension part, 9 is an apron reinforce,
9a and 9b are upper and lower flanges, 10 is a front wheel suspension device, 12 is a support member, 16 is a cowl inner, 16a
Bent portion, 17 is cowl reinforcement, 17a and 17b are lower and upper flanges, 18 is plate, 18a and 18b
Are the lower and upper flanges.

Claims (1)

[Scope of utility model registration request] 1. An outer edge of a spring support for supporting an upper end of a front wheel suspension device is bent upward to extend, and the extended portion is joined to an upper flange of an apron rein hose extending in a vehicle front-rear direction. The lower flange is positioned below the base of the extension, and the lower flange and the base of the extension are connected by a support member to have a vertically long closed cross-sectional shape and an apron side portion extending in the vehicle front-rear direction. The end portion of the cowl inner of the cowl panel that extends in the vehicle width direction is bent downward, and the bent portion is sandwiched between the plate extending in the vehicle front-rear direction, the lower portion of the cowl side, and the upper flange, and joined to each other. Join the upper flange of the cowl reinose hose to the upper flange of the Joined to runner to form a cowl side portion having a vertically long closed section, the vehicle body front structure of an automobile, characterized in that joining the said cowl side portion and the apron side portion.