JPH0650291Y2 - Front body structure of automobile - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a front body structure of an automobile.

(Prior Art) Generally, in a vehicle body front portion of a vehicle, a cowl side panel provided in a vehicle body side portion in a vertical direction and a dash upper panel provided in a vehicle width direction across the left and right cowl side panels. After welding and joining each other, a sealing material is attached from the inside of the vehicle along the entire length of the joint for maintaining the watertightness (for example, see Japanese Utility Model Laid-Open No. 57-37089). ).

In this known example, the cowl side panel has no closed cross-section structural portion extending from the front pillar toward the front side of the vehicle body at the upper end portion of the cowl side panel. It can be provided on the inner panel side, whereby a sealing material is continuously provided from the vehicle interior side to the joint between the cowl side panel and the dash upper panel from the vehicle body front side to the vicinity of the windshield opening. It can be installed.

On the other hand, in recent automobiles, as shown in FIG. 4, the cowl side panel 32 is joined to the outer surface side of the pillar inner panel 36 of the front pillar 35, and the cowl side panel 32 and the dash are joined together as shown in FIG. The cowl upper plate 33 and the wheel apron reinforcement 34 are attached along the joint with the upper panel 31, and the front pillar 35 is attached to the vehicle body side by these.
There is a tendency to adopt a so-called monocoque type vehicle body structure in which a side upper frame 38 having a closed cross-section configuration extending from the front side toward the vehicle body front side is formed.

(Problems to be solved by the invention) However, in the one having such a monocoque body structure, the sealing material for the joint portion between the dash upper panel 31 and the cowl side panel 32 is as follows. It is difficult to continuously install from the passenger compartment side over the entire length thereof, and the installation of the sealing material 41 becomes discontinuous during the installation, and there is room for improvement in terms of ensuring sealing performance at the joint. Have

That is, conventionally, the cowl side panel 32 has the front pillar.
The joint flange 32a formed at the upper end of the cowl side panel 32, which is provided on the side of the pillar inner panel 36 of 35, extends outward in the vehicle width direction, and the dash upper panel 31 is attached to the joint flange 32a. The side end portion 31a is joined. Therefore, when the seal member 41 is to be attached to the joint between the dash upper panel 31 and the cowl side panel 32, the inner portion of the joint at the front side of the front pillar 35 facing the vehicle interior. Therefore, the seal member 41 can be attached to the joint from the inside of the passenger compartment (see the broken line waveform portion in FIG. 4.
21a), and in the portion on the rear side of the vehicle body, the pillar outer panel 37 of the front pillar 35 closes the vehicle interior side portion of the joint, so the sealing material 41 must attach it from the vehicle exterior side of the joint. Not obtained (solid line waveform portion in FIG. 4, reference numeral 21b), and as a result, the sealing material 41
On the front part of the front pillar 35 is divided into the inside and the outside of the joint and becomes discontinuous, and the sealability is deteriorated accordingly.

Therefore, the present invention has such a monocoque body structure that the seal member can be continuously attached to the joint between the dash upper panel and the cowl side panel from the inside of the vehicle to the entire length thereof. It is an object of the invention to propose a vehicle body structure for the front part of an automobile, which is designed to ensure the sealing property at the joint portion.

(Means for Solving the Problem) As means for solving such a problem, in the present invention, a front pillar having a closed cross section which is composed of a pillar outer panel and a pillar inner panel and extends in the up-down direction, and is arranged on a vehicle body side portion. And a rear end portion thereof is joined to the pillar outer panel side and a top end portion thereof is provided with a cowl side panel provided with a joining flange extending in the vehicle front-rear direction, and provided between the left and right cowl side panels. A tash upper panel that is joined to the joining flange of the cowl side panel on both sides and its both rear end portions are joined to the front pillar,
A wheel apron reinforcement which is disposed on the side of the vehicle body in the front-rear direction of the vehicle and whose rear end is joined to the front pillar and the lower end to the cowl side panel, respectively, and a vehicle width direction from the wheel apron reinforcement. The front end is joined to the front pillar and the lower end is joined to the front upper pillar and the dash upper panel, respectively, and the upper end is joined to the upper end of the wheel apron reinforcement. A cowl upper plate that forms a closed cross section between the both, extending the joint flange of the cowl side panel toward the inner side in the vehicle width direction, and connecting the joint flange and the dash upper panel to the front. Car than the above pillar inner panel of pillars It is characterized in that it has extended in the vehicle longitudinal direction as located on the extension of the joint portion between the pillar outer panel and a pillar inner panel Moreover the front pillar in the inward.

(Operation) By adopting such a means, even though the cowl side panel is provided on the pillar outer panel side of the wheel apron reinforcement, the joint portion between the cowl side panel and the front pillar is the wheel apron rain panel. Since it is continuous inside the pillar inner panel of the reinforcement, it is possible to continuously provide the sealing member to the joint portion from the vehicle interior side over the entire length thereof.

(Effect of the Invention) Therefore, according to the front body structure of the vehicle of the present invention, the seal material can be continuously attached to the joint between the front pillar and the dash upper panel from the vehicle interior side to the entire length thereof. Therefore, for example, a practical effect that the sealing property at the joint portion is improved as compared with a case where the sealing material is discontinuously attached to the sealing material, is obtained.

(Embodiment) A preferred embodiment of the present invention will be described below with reference to FIGS. 1 to 3.

1 and 2 show a vehicle front portion of an automobile having a front vehicle body structure according to an embodiment of the present invention, in which the reference numeral 1 designates a pillar outer panel 6 and a pillar inner panel 7. It is a front pillar having a closed cross section.

A cowl side panel 2 is joined and fixed to a position of the front pillar 1 on the front side of the vehicle body.

As shown in FIG. 3, the cowl side panel 2 is formed by bending a plate material, and has a vertical wall surface 2a,
It has three joint flanges continuously formed on the upper edge of the vertical wall surface 2a, that is, a first joint flange 2b, a second joint flange 2c and a third joint flange 2d. The bracket 8 is joined and fixed to the vertical wall surface 2a with its joint surface 8a being substantially flush with the third joint flange 2d.

The cowl side panel 2 is shown in FIGS.
As shown in the figure, the vertical wall surface 2a is attached to the pillar outer panel 6
The second joint flange 2c is joined to the flange surface 6c of the pillar outer panel 6 and the third joint flange 2d is joined to the front surface 6b of the pillar outer panel 6 so as to be integrated with the front pillar 1 integrally. Bonded and fixed. The cowl side panels 2 are provided on both sides of the vehicle body, and the left and right cowl side panels 2, 2 are joined to each other by a dash upper panel 3 described later in the vehicle width direction.

The dash upper panel 3 is integrally formed by a plate member as shown in FIG. 3, and includes a body portion 3a extending in the vehicle width direction and four joint flanges extending on both sides of the body portion 3a. That is, it has a first joint flange 3b, a second joint flange 3c, a third joint flange 3d and a fourth joint flange 3e. And this dash upper panel 3
As shown in FIGS. 1 and 2, the first joint flange 3b is the first joint flange of the cowl side panel 2.
2b, the second joint flange 3c to the second joint flange 2c of the cowl side panel 2, the third joint flange 3d to the third joint flange 2d of the cowl side panel 2, and the fourth joint flange 3e to the pillar outer panel. 6 are attached to the vehicle body side by being joined and fixed.

Further, a cowl upper plate 4 and a wheel apron reinforcement 5 are attached to the outside of the joint between the dash upper panel 3 and the cowl side panel 2 from the front pillar 1 toward the front side of the vehicle body. The upper plate 4 and the wheel apron reinforcement 5 form a side upper frame 9 having a closed cross-sectional structure in which a vehicle body side portion extends from the front pillar 1 to the vehicle body front side.

In this way, the front pillar 1, the cowl side panel 2, the dash upper panel 3, and the cowl upper plate 4
The members of the wheel apron reinforcement 5 and the wheel apron reinforcement 5 are mutually joined and integrated at the front corners of the vehicle body. In this case, the present invention is applied to the cowl side in this embodiment. Each joint flange 81 of the panel 2 is formed in a state of being extended inward in the vehicle width direction from the upper edge of the vertical wall surface 2a. Therefore, the joint between the cowl side panel 2 and the dash upper panel 3 (that is, the joint between the first joint flange 2b of the cowl side panel 2 and the first joint flange 3b of the dash upper panel 3 and the cowl side panel 2). The entire length of the edge portion on the vehicle width direction inner side of the joint portion between the second joint flange 2c and the second joint flange 3c of the dash upper panel 3 is exposed to the inside of the vehicle compartment. For this reason, when the seal member 40 is attached to the joint between the cowl side panel 2 and the dash upper panel 3, the broken line waveform (reference numeral 40 ') in FIGS. 1 and 2 is used.
It becomes possible to continuously attach the sealing material 40 to the inner edge portion in the vehicle width direction of the joint portion over the entire length thereof, as shown in FIG. 3, and the sealing property of the joint portion can be maintained at a high level. .

[Brief description of drawings]

FIG. 1 is a perspective view of an essential part of a vehicle body having a front body structure according to an embodiment of the present invention, FIG. 2 is a plan view of the vehicle body portion shown in FIG. 1, and FIG. 3 is FIG. FIG. 4 is a reduced exploded perspective view of the vehicle body component shown, and FIG. 4 is an explanatory view of a conventional front vehicle body structure. 1 …… Front pillar 2 …… Cowl side panel 3 …… Dash upper panel 4 …… Cowl upper plate 5 …… Wheel apron reinforcement 6 …… Pillar outer panel 7 …… Pillar inner panel 8 …… Bracket 9 …… Side Upper frame 40 …… Seal material

Claims (1)

[Scope of utility model registration request] 1. A front pillar having a closed cross section, which is composed of a pillar outer panel and a pillar inner panel and extends in the vertical direction, and a front pillar arranged on a vehicle body side portion and having a rear end portion thereof joined to the pillar outer panel side and an upper end portion thereof. Is a cowl side panel provided with a joint flange extending in the front-rear direction of the vehicle body, and is provided so as to straddle between the left and right cowl side panels, and is joined to the joint flanges of the cowl side panel at both sides thereof and its rear end on both sides. And a wheel apron rain which has a rear end portion joined to the front pillar and a lower end portion joined to the cowl side panel. The width of the vehicle from the reinforcement and the wheel apron reinforcement The front end is joined to the front pillar and the lower end is joined to the dash upper panel, and the upper end is joined to the upper end of the wheel apron reinforcement. And a cowl upper plate that forms a closed cross section between the two, the joint flange of the cowl side panel is extended toward the inner side in the vehicle width direction, and the joint between the joint flange and the dash upper panel. Is extended in the vehicle front-rear direction so as to be located inside the pillar inner panel of the front pillar in the vehicle width direction and on the extension of the joint between the pillar outer panel and the pillar inner panel of the front pillar. The front body structure of the car.