JPH0323907Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to the front body structure of an automobile, and more specifically to the structure of a dash panel portion that constitutes the rear wall of the engine room.

(Prior Art) In an automobile in which an engine room is configured in the front of the passenger compartment, the engine room and the passenger compartment are separated by a darts panel, and the darts panel constitutes the rear wall of the engine room.

A front windshield glass is attached to the top of such a darts panel.For this reason, conventionally, as shown in Japanese Utility Model Application Publication No. 55-157081, a windshield was installed at the top of the dash panel that extended almost the entire length in the vehicle width direction. A cross-sectional reinforcing member was configured.

In addition, a passage section for introducing outside air for air conditioning is generally formed at the top of the dash panel that supports this, but conventionally, when configuring the road section for air conditioning at the top of the dash panel, as shown in the above-mentioned publication, This was accomplished by separately arranging a dedicated passage component.

(Problems to be Solved by the Invention) Incidentally, since the front window glass is quite heavy, it is desirable that the structure of the upper part of the dash panel that supports it be particularly strong.

Therefore, in consideration of the above-mentioned circumstances, the present invention provides a front body structure for an automobile, which strongly reinforces the upper part of the dash panel and simplifies the formation of an air-conditioning passage to the upper part of the dash panel. With the goal.

(Means and effects for solving the problem) In order to achieve the above-mentioned object, in the present invention, a closed cross section is formed in the upper part of the interior side of the darts panel constituting the rear wall of the engine compartment, and A reinforcing member extending over almost the entire length is joined, and a cowl box forming an internal space connected to the atmosphere is joined to the upper part of the dash panel on the engine room side, and each of the reinforcing members has partitions for partitioning the closed cross section. A plurality of joint members are arranged at intervals in the vehicle width direction, and an inlet connected to the cowl box and an air conditioning unit are connected to a specific space within the closed cross section of the reinforcing member defined by the joint members. The front body structure of an automobile is characterized in that an exit connected to the front body of the vehicle is opened.

With this configuration, the knot members reinforce the reinforcing member, and the reinforcing members and the cowl box reinforce the upper part of the dash panel. Therefore, the upper part of the dash panel can be strongly reinforced.

Further, by effectively utilizing the reinforcing member and the knot member as they are, it is possible to form a passage for introducing outside air into the upper part of the dash panel. Therefore, the formation of the air conditioning passage in the upper part of the dash panel can be simplified.

In addition, the cowl box further configures the outside air introduction passage, making it possible to increase the length of the outside air introduction passage from the outside air introduction port to the air conditioning unit. Based on gravity, using the outside air introduction passage,
Rainwater can be separated. Therefore, it is possible to prevent rainwater from being introduced into the air conditioning unit.

Moreover, in this case, the long outside air introduction passage is used to separate rainwater, and there is no need to install baffles or the like to perform separation using inertia, unlike when using baffles. This eliminates the possibility of a significant increase in the pressure loss of the outside air. Therefore, there is no problem in securing the amount of outside air introduced.

(Example) An example of the present invention will be described below based on the attached drawings.

In FIG. 1, reference numeral 1 designates a dash panel, and with this dash panel 1 as a boundary, the front part is an engine room A, and the rear part is a vehicle compartment B.

A pair of left and right wheel aprons 2 extend forward from the left and right end portions of the dash panel 1, respectively, and a radiator shroud 3 is located at the front end portions of the wheel aprons 2. As a result, the engine room A is constituted by the dash panel 1, the left and right pair of wheel aprons 2, and the radiator shroud 3.

The wheel apron 2 is formed with a wheel arch portion 4 that bulges toward the engine room A side,
A front frame 5 is joined to the wheel apron 2 directly below the wheel arch portion 4 . A suspension tower portion 6 is joined to the wheel arch portion 4 and the wheel apron 2 above the wheel arch portion 4.

Behind the wheel apron 2 and on the sides of the dash panel 1, as shown in FIG. (also called hinge pillars) 7 are arranged. For example, the rear end of the wheel apron 2 and the side end of the dash panel 1 are connected to the front pillar 7.
They are joined (welded) as shown in the figure, and the joint locations are indicated by dashed lines in the figure.

In the embodiment, the dash panel 1 is composed of an upper panel 8 and a lower panel 9.
The dividing line between both panels 8 and 9 extends substantially horizontally, and the height position of the lower edge 8a of the upper panel 8 is slightly higher than the engine (engine body), not shown. This engine height position is shown in FIG. 4E and is approximately the same height as the suspension tower section 6). As shown in FIG. 2, the upper edge 9 of the lower panel 9 is attached to the rear surface of the lower edge 8a of the upper panel 8.
Both edge portions 8a and 9a are joined with the edges 8a and 9a overlapped.

The lower panel 9 is configured as a flat plate as a whole, while the upper panel 8 is curved to have a predetermined shape. That is,
The center portion of the upper panel 8 in the vehicle width direction is inclined forward as shown by the arrow X in FIG. 1, and the left and right sides of the upper panel 8 are inclined backward as shown by the arrow Y in FIG. As a result, the shape of the upper edge 8b of the atsupa panel 8 is different from that of the front windshield 10 (see FIG. 4) when viewed from above.
It has a substantially arcuate shape that is convex toward the front, matching the curved shape of the lower end edge (not shown in FIG. 1).

As shown in FIGS. 2 and 4, a reinforcing member 11 is bonded to the rear surface of the upper panel 8, that is, the surface facing the vehicle compartment B. As shown in FIGS. This reinforcing member 11
has a substantially U-shaped cross section, extends over the entire length of the upper panel 8 in the vehicle width direction, and cooperates with the upper panel 8 to form a closed cross section. Of course, the reinforcing member 1
The joint surface of the Atsupa panel 8 of No. 1 is curved to match the above-mentioned curved shape of the Atsupa panel 8, and by providing such a reinforcing member 11, the rigidity of the Atsupa panel 8 is improved, and the Atsupa panel 8 is The above-mentioned predetermined curved shape can be firmly maintained. As shown in FIGS. 2, 4, and 5, inside the reinforcing member 11, a plurality of joint members 12 are arranged and joined at intervals in the vehicle width direction. The reinforcing effect of the reinforcing member 11 is further improved by the knot member 12.

In addition, since such a reinforcing member 11 only needs to be considered for reinforcing the upper panel 8, the longitudinal length of the closed cross section formed by this reinforcing member 11 is as follows.
It is much smaller than the conventional cowl structure for attaching a windshield. Further, as in the embodiment, if the reinforcing member 11 is joined to the lower part of the upper panel 8, that is, to the part where the degree of curvature formed with the inclinations X and Y is relatively small, it is easy to form the reinforcing member 11. It is.

The reinforcing member 11 is located approximately in the lower half of the upper panel 8, and the upper edge 8b of the upper panel 8 is located above the reinforcing member 11.
is bent slightly backwards. As shown in FIGS. 2 and 4, a plurality of box-shaped reinforcing members 13 are seated and arranged on the reinforcing member 11 at intervals in the vehicle width direction. This reinforcing member 13 is joined to the reinforcing member 11 and the upper panel 8, and the upper panel 8 is bent backward.
The upper end edge 8b is tightly fitted into the upper end edge 8b, and thereby the upper end edge 8b is firmly supported by the reinforcing member 11 via the reinforcing member 13, thereby firmly supporting the predetermined curved shape described above. It is made possible to do so.

A bracket 14 is fixed on the upper edge 8b of the upper panel 8 (see FIG. 4, not shown in FIG. 1). This bracket 14 extends forward from the upper panel 8 and extends over almost the entire length in the vehicle width direction, and is joined to the bracket 14 at the rear end of the bracket 14, that is, at a position directly above the upper edge 8b of the upper panel 8. The auxiliary bracket 15 is also used to attach and support the front window glass 10 (lower edge 10a).

Of course, both the brackets 14 and 15 are shaped to follow the curved shape of the upper edge 8b of the upper panel 8, and the brackets 14 and 15 are
A rain rail section 16 is formed at the front end of the bonnet 17, and the front end of the rain rail section 16 forms a seal section 18 of a bonnet 17 that covers the upper part of the engine room A. Although not shown, a wiper arm (its pivot shaft) is attached to the bracket 14 at a position rearward of the rain rail portion 16 and at a predetermined position in the vehicle width direction.

Of the plurality of joint members 12 provided in the reinforcing member 11 described above, the reinforcement member 1 is partitioned by two joint members 12 located at the central portion in the vehicle width direction.
As shown in FIGS. 4 and 5, the specific space C in the vehicle interior 1 constitutes a duct for introducing outside air, etc. into the vehicle interior B. That is, the specific space C has a substantially sealed structure, and the top panel 8 is formed with an entrance 19 that opens into this space C, and the bottom wall of the reinforcing member 11 is formed with an exit 20 that opens into this space C. ing. The inlet 19 is connected to an outside air inlet 21 formed in the bracket 14 by a duct 22 serving as a cowl box. As a result, the outside air introduced into the space C from the outside air inlet 21 via the duct 22 flows out from the exit 20 and from the duct 23 connected to the exit 20 from the passenger compartment B side, and is passed through the air conditioner. Alternatively, it is designed to be directly introduced into the vehicle compartment B.

In addition, in FIG. 1, 24 is a wheel reinforcement, 25 is a reinforcing member, and this reinforcing member 2
Since the wheel apron 2 is considerably higher than the suspension tower portion 6, the reference numeral 5 is for reinforcing this raised portion.

In the above embodiment, the case where the dash panel 1 is divided into upper and lower panels, ie, an upper panel 8 and a lower panel 9, has been shown, but it can also be constructed from a single plate. Furthermore, the joint members 12, except for those defining the specific space C, may be appropriately perforated for weight reduction, etc., or may be box-shaped.

(Effects of the invention) As described above, the invention can strongly reinforce the upper part of the darts panel.

Further, the formation of the air conditioning passage in the upper part of the dash panel can be simplified.

Furthermore, it is possible to prevent rainwater from being introduced into the air conditioning unit without jeopardizing the amount of outside air introduced.

[Brief explanation of the drawing]

FIG. 1 shows an embodiment of the present invention, and is a top perspective view from the engine room side. FIG. 2 is a top perspective view of one end of the dash panel viewed from the passenger compartment side. FIG. 3 is a plan sectional view showing an example of the joining relationship between the dash panel, wheel apron, and front pillar. FIG. 4 is a side sectional view showing a part where outside air is introduced into the vehicle compartment. FIG. 5 is a sectional view taken along the - line in FIG. 4. A... Engine room, B... Vehicle interior, 1... Dash panel, 8... Atsushi panel, 9... Lower panel, 10... Front windshield, 11
... Reinforcement member, 12 ... Joint member, 19 ... Entrance,
20...exit, 22,23...duct.

Claims (1)

[Scope of Claim for Utility Model Registration] A reinforcing member that forms a closed cross section and extends over almost the entire length in the vehicle width direction is joined to the upper part of the interior side of the dash panel that constitutes the rear wall of the engine room, and a reinforcing member that forms a closed cross section and extends over almost the entire length in the vehicle width direction. A cowl box that forms an internal space connected to the atmosphere is joined to the upper side of the reinforcing member, and within the reinforcing member, a plurality of joint members are arranged at intervals in the vehicle width direction, each partitioning the closed cross section, and A front part of an automobile characterized in that an inlet connected to the cowl box and an outlet connected to an air conditioning unit are opened to a specific space within a closed cross section of the reinforcing member defined by a joint member. Vehicle structure.