JPH06247341A - Front body structure for automobile - Google Patents

Abstract

PURPOSE:To use one brace to deal with inputs to a strut housing and to provide a front structure of good watertightness. CONSTITUTION:An extension portion which extends near a strut housing 6 is formed in a bottom wall portion 2a on each side of a dash upper panel 2. The lower end 19a of a brace 19 connecting the strut housing 6 to a cowl top side panel is extended rearwards on the extension portion to an air intake 4. The upper end 19b of the brace 19 is extended along the cowl side top panel to a connecting portion for the dash upper panel 2 to a front pillar 5, and a closed cross section is formed by the bottom wall portion 2a and extension portion of the dash upper panel 2, the cowl side top panel and the brace 19.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a front body structure for an automobile.

[0002]

2. Description of the Related Art As a technique of this kind, for example, as shown in FIG. 8 (see Japanese Utility Model Publication No. 55-13166 and Japanese Utility Model Publication No. 62-58260), a front body structure for an automobile is
An air box 3 is formed in the vehicle width direction by the cowl top panel 1 and the dash upper panel 2, an air intake 4 is opened in a bottom wall portion 2a of the dash upper panel 2, and both ends of the air box 3 are cowled. Upper flanges of vertical walls that are connected to upper and lower surfaces of a top side panel (not shown) and that are formed on both sides of the dash upper panel 2 are connected to the front pillar 5. Reference numeral 6 is a strut housing, reference numeral 7 is a brace that connects the strut housing 6 and the cowl top panel 1 of the air box 3, reference numeral 8 is a dash lower panel connected to the dash upper panel 2, and reference numeral 9 is a side lower member. Reference numeral 10 is a side upper member.

FIG. 9 (see Japanese Utility Model Laid-Open No. 1-83676)
Is a front body structure for an automobile of another conventional example, and the main difference from the conventional example is that the front pillar 5 and the strut housing 6 are directly coupled by a suspicious reinforcement 11. .

[0004]

However, in the former case of the above-mentioned conventional example, since the brace 7 takes charge of the strut housing 6 in the vertical and horizontal directions by one sheet, the strength, It is necessary to increase the thickness of the rigid upper plate, which causes an increase in cost.

Further, in the latter of the above-mentioned conventional examples,
Suspeller reinforcement 11 is dash lower panel 8
Due to the structure penetrating through, the workability of the paint seal of the through hole (not shown) of the dash lower panel 8 is poor. In addition, there is a problem that the dash insulator (not shown) arranged on the indoor side of the dash lower panel 8 also deteriorates the adhesion and mounting workability.

[0006] Therefore, an object of the present invention is to provide a front structure which enables the input to the strut housing to be handled by a single brace and which has good watertightness in the room.

[0007]

As a front body structure for an automobile of the present invention, an air box is formed in a vehicle width direction by a cowl top panel and a dash upper panel,
An air intake is opened in the bottom wall of the dash upper panel, both ends of the air box are connected to cowl top side panels, respectively, and front pillars are connected to both sides of the dash upper panel. An extension portion extending to the vicinity of the strut housing is formed on the bottom wall portions on both sides, and the lower end of the brace connecting the strut housing and the cowl top side panel is rearwardly moved to the air intake on the extension portion. On the other hand, while extending, the upper end of the brace is extended along the cowl top side panel to the connecting portion between the dash upper panel and the front pillar to form a bottom wall portion and an extending portion of the dash upper panel, A closed cross section is formed by the cowl top side panel and the brace. And wherein the door.

[0008]

[Operation] According to this structure, the bottom wall portion of the dash upper panel and the extended portion, the cowl top side panel and the brace form a closed cross section, so that a load in the vertical and horizontal directions is applied to the strut housing. However, it can be received by the closed cross section, and the support rigidity of the strut housing is improved. Moreover, since the connection to the front pillar does not involve the dash lower panel unlike the conventional example,
Watertightness will be superior. Furthermore, since the lower end of the brace extends rearward to the air intake, it is possible to prevent dust, water, and the like from entering the air intake.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings. 1 to 6, the cowl top panel 1 and the dash upper panel 2 form an air box 3 in the vehicle width direction. An air intake 4 is opened in the bottom wall portion 2 a of the dash upper panel 2. Both ends 1a and 2b of the air box 3 are connected to upper and lower flanges 15a and 15b of the cowl top side panel 15, respectively.

Both sides 2 of the dash upper panel 2
Front pillar 5 inserted in recess 2d formed in c
Flange 5 between inner panel 5a and outer panel 5b
c are linked together. Grooves 17 are formed in the bottom wall portions 16 on both sides 2c of the dash upper panel 2, and the strut housing 6 is further provided with the groove portions 17 interposed therebetween.
An extended portion 18 extending to the vicinity is formed.

Reference numeral 19 denotes a brace whose front end portion 19c is connected to the strut housing 6 and rear end portion 19d is connected to the cowl top side panel 15, and the lower end 19a of the brace 19 is located above the extending portion 18. While extending backwards to the air intake 4 while the brace 1
The upper end 19b of the dash 9 is extended along the cowl top side panel 15 to a connecting portion between the dash upper panel 2 and the front pillar 5, and is formed to form a bottom wall 2a and an extending portion 18 of the dash upper panel 2. The cowl top side panel 15 and the brace 19 form a closed cross section.

Reference numeral 15c is a tunnel portion formed at a bottom position of the cowl top side panel 15 arranged above the groove portion 17 of the dash upper panel 2. According to this embodiment, the bottom wall 2a of the dash upper panel 2, the extending portion 18, the cowl top side panel 15 and the brace 19 form a closed cross section, so that the strut housing 6 is vertically and horizontally oriented. Even if a load of 1 is applied, it can be received by the closed cross section and the support rigidity of the strut housing is improved. Further, since the connection to the front pillar 5 does not involve the dash lower panel 8 as in the conventional example, the watertightness is excellent.
Furthermore, since the lower end of the brace extends rearward to the air intake, it is possible to prevent dust, water, and the like from entering the air intake.

FIG. 7 shows another embodiment of the present invention, in which the brace 1 extends all over the strut housing 6.
In this example, the front end portion 19c of 9 is covered and welded to the strut housing 6 by SW. Reference numeral 20 is a tool insertion opening of the welding SW portion.

[0014]

As described above, according to the present invention, as the front body structure for an automobile, the air box is formed in the vehicle width direction by the cowl top panel and the dash upper panel, and the bottom wall of the dash upper panel is formed. Open the air intake in the part, both ends of the air box are respectively connected to the cowl top side panel, front pillars are connected to both ends of the dash upper panel, and to the bottom wall parts of both sides of the dash upper panel. Forms an extension extending to the vicinity of the strut housing, and extends the lower end of the brace connecting the strut housing and the cowl top side panel rearward to the air intake on the extension, while The upper end along the cowl top side panel and the dash upper panel and the The strut housing is characterized in that the strut housing is formed so as to extend to the connecting portion with the front pillar and is formed respectively, and a closed cross section is formed by the bottom wall of the dash upper panel, the extending portion, the cowl top side panel and the brace. Even if a load is applied in the vertical and horizontal directions, the load can be received by the closed cross section, and the support rigidity of the strut housing is improved. Moreover, since the connection to the front pillar does not involve the dash lower panel unlike the conventional example,
Watertightness will be superior. Further, since the lower end of the brace extends rearward to the air intake, it is possible to prevent dust, water and the like from entering the inside thereof.

[Brief description of drawings]

FIG. 1 is a perspective view of a front body structure for an automobile showing an embodiment of the present invention.

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

FIG. 3 is a side view taken along the arrow SB in FIG.

FIG. 4 is a cross-sectional view taken along the line SC-SC of FIG.

5 is a cross-sectional view taken along the line SD-SD in FIG.

FIG. 6 is an exploded perspective view of FIG. 1 before assembly.

FIG. 7 is a perspective view of a front body structure for an automobile showing another embodiment of the present invention.

FIG. 8 is a view corresponding to FIG. 1 of a first conventional example.

FIG. 9 is a view corresponding to FIG. 1 of a second conventional example.

[Explanation of symbols]

 1 cowl top panel 2 dash upper panel 3 air box 4 air intake 5 front pillar 6 strut housing 15 cowl top side panel 16 bottom wall parts on both sides of the dash upper panel 18 extension part of the dash upper panel 19 brace

Claims (1)

[Claims] 1. An air box is formed in a vehicle width direction by a cowl top panel and a dash upper panel, an air intake is opened in a bottom wall portion of the dash upper panel, and both end portions of the air box are cowl top sides. In a front body structure connected to a panel and front pillars connected to both sides of the dash upper panel, extension portions extending to the vicinity of the strut housing are formed in bottom wall portions on both sides of the dash upper panel. A lower end of a brace connecting the strut housing and the cowl top side panel is extended rearward to the air intake on the extension portion, while an upper end of the brace is extended along the cowl top side panel to the dash upper. Extend to the connection between the panel and the front pillar S formed, the dash upper panel bottom wall portion and the extended portion of the cowl top side panel and front body structure for an automobile, characterized in that by forming a closed section in the brace.