JP4411906B2 - Body front structure - Google Patents

Description

  The present invention relates to a vehicle body front structure, and more particularly to a vehicle body front structure in which an engine room is disposed in front of a vehicle compartment in a vehicle such as an automobile.

Conventionally, in a vehicle body front structure in which an engine room is disposed in front of a passenger compartment of a vehicle such as an automobile, the parting portion side inward in the vehicle width direction of the fender is supported by the vehicle body attachment portion via elastic means. In addition, a configuration is known that enables the fender to move downward on the parting side when it collides with an obstacle (see, for example, Patent Document 1).
JP 2001-334958 A

  However, in the vehicle body front structure disclosed in Patent Document 1, hot air in the engine room passes through the gap between the fender having the elastic means, the apron upper member to which the elastic means is fixed, and the cowl louver. It flows into a cowl arranged along the width direction. As a result, the temperature in the passenger compartment increases due to the hot air in the engine room.

  In view of the above facts, an object of the present invention is to provide a vehicle body front structure that can suppress a temperature rise in a vehicle compartment due to hot air in an engine room.

The vehicle body front part structure of the present invention according to claim 1 includes left and right front fender panels surrounding the engine room with a hood,
An apron upper member to which the front fender panel is fixed;
A cowl louver formed with a front vertical wall that partitions the interior of the cowl and the engine room ;
The outer peripheral portion of the front vertical wall portion in the vehicle width direction outer side portion of the along the vehicle width direction is disposed Rutotomoni upper and the vehicle width direction outer side portion of said cowl louver is joined to the inner surface of the front fender panel, the cowl louver a shielding plate and the closing the gap between the front fender panel and the apron upper member, to cut off the flow of hot air into the cowl inner from the inside of the engine room,
It is characterized by having.

Accordingly, the shielding plate the outer peripheral portion of the front vertical wall portion in the vehicle width direction outer side portion of the along the vehicle width direction is disposed Rutotomoni upper and the vehicle width direction outer side portion of the cowl louver is joined to the inner surface of the front fender panel Prevents the gap between the cowl louver with the front vertical wall part separating the inside of the cowl from the engine room, the left and right front fender panels surrounding the engine room with the hood, and the apron upper member to which the front fender panel is fixed. Thus, the flow of hot air from the inside of the engine compartment to the inside of the cowl is blocked through the gaps between the cowl louver, the front fender panel, and the apron upper member. As a result, the temperature rise in the passenger compartment due to the hot air inside the engine room can be suppressed.

The vehicle body front structure according to the first aspect of the present invention includes a left and right front fender panel that surrounds the engine room with a hood, an apron upper member to which the front fender panel is fixed, a front vertical section that partitions the interior of the cowl and the engine room. a cowl louver wall portion is formed, among the outer peripheral portion of the front vertical wall portion in the vehicle width direction outer side portion of the along the vehicle width direction is disposed Rutotomoni upper and the vehicle width direction outer side portion of the cowl louver is the front fender panel A shield plate that is joined to the side surface, blocks a gap between the cowl louver, the front fender panel, and the apron upper member, and blocks the flow of hot air from the inside of the engine room to the inside of the cowl. It has an excellent effect of suppressing the temperature rise in the room.

  An embodiment of a vehicle body front structure according to the present invention will be described with reference to FIGS.

  In the figure, the arrow UP indicates the vehicle body upward direction, the arrow FR in the figure indicates the vehicle body front direction, and the arrow IN in the figure indicates the vehicle width inside direction.

  As shown in FIG. 3, an engine room surrounded by a hood 12 and left and right front fender panels 14 is formed in the front portion 10A of the vehicle body 10 of the present embodiment. A vehicle compartment partitioned from the engine room by a dash panel 20 (see FIG. 1) is formed. A well-known cowl (not shown) for connecting the left and right A-pillars 16 is disposed on the upper part of the dash panel along the vehicle width direction, and the cowl is located below the window opening 18 on the front of the vehicle body. Forming.

  As shown in FIG. 1, the mounting flange 14 </ b> B of the front fender panel 14 is fixed to the upper wall portion 31 </ b> A of the apron upper member 31 via a shock absorbing bracket 21, and is raised with respect to the apron upper member 31. The flange 14B of the front fender panel 14 is disposed at the position.

  The cowl louver 24 is formed with a front vertical wall portion 30 that partitions the cowl interior 26 and the engine compartment interior 28, and a flange 32 is formed at the lower end portion of the front vertical wall portion 30 toward the front of the vehicle body. Yes. In addition, a U-shaped flange 34 having a shape viewed from the front of the vehicle body with the opening facing outward in the vehicle width direction is formed at the outer end of the front vertical wall portion 30 in the vehicle width direction. 34A is connected to the outer end of the flange 32 in the vehicle width direction.

  An upper portion 42 of the shielding plate 40 is disposed on the outer side in the vehicle width direction of the front vertical wall portion 30 which is on the same plane as the front vertical wall portion 30 of the cowl louver 24, and the upper portion 42 of the shielding plate 40 is The gap 44 between the front vertical wall portion 30 of the cowl louver 24, the inner side surface (back surface) 14A of the front fender panel 14 and the apron upper member 31 is closed. Further, the lower portion 46 of the shielding plate 40 extends toward the lower side of the vehicle body.

  As shown in FIG. 2, flanges 48 are formed toward the front side of the vehicle body on the outer periphery of the upper portion and the vehicle width direction outer portion of the shielding plate 40, and these flanges 48 are the inner side surfaces of the front fender panel 14. 14A (see FIG. 1). A rectangular notch 50 is formed on the inner side in the vehicle width direction of the upper portion 42 of the shielding plate 40. A flange 52 is formed on the inner periphery of the notch 50 toward the front of the vehicle body, and the flange 52 is joined to the apron upper member 31 (see FIG. 1).

  As shown in FIG. 1, a rectangular protrusion 55 is formed on the upper side of the notch 50 in the upper portion 42 of the shielding plate 40 toward the inner side in the vehicle width direction, and the protrusion 55 is formed at the upper portion of the front fender. The panel 14 is fitted inside a U-shaped flange 34 formed on the front vertical wall portion 30 of the cowl louver 24 with the flange 14B interposed therebetween. Accordingly, the protrusion 55 of the upper portion 42 of the shielding plate 40 closes the gap between the upper wall portion 31A of the apron upper member 31 and the flange 14B of the front fender panel 14.

  As shown in FIG. 2, the protrusion 55 of the shielding plate 40 is formed with an attachment portion 56 toward the inner side in the vehicle width direction, and a through hole 58 is formed in the center of the attachment portion 56. Yes. A fastening means 60 such as a screw is inserted into the through hole 58 from the upper side of the vehicle body, and the attachment portion 56 of the shielding plate 40 is fixed to the upper wall portion 31A of the apron upper member 31 by the fastening means 60. .

  A flange 62 is formed at the inner edge of the lower portion 46 of the shielding plate 40 in the vehicle width direction toward the front of the vehicle body, and a flange 64 is formed at the lower edge of the shielding plate 40 toward the rear of the vehicle body. Yes. These flanges 62 and 64 are joined to an apron and a wheel house (not shown).

  In addition, an extending portion 66 is formed in the vehicle width direction inner end portion at the lower end edge portion of the shielding plate 40, and the extending portion 66 is fixed to the wheel house at the lower end portion of the extending portion 66. The clip 68 is disposed.

  Next, the operation of this embodiment will be described.

In the present embodiment, as shown in FIG. 1, the upper flush with the vertical wall portion 30 before the cowl louver 24, Ru is disposed along the vehicle width direction at a portion in the vehicle width direction outer side of the front vertical wall portion 30 In addition, a flange 48 formed on the outer periphery of the upper portion and the outer portion in the vehicle width direction toward the front side of the vehicle body is joined to the inner side surface 14A (see FIG. 1) of the front fender panel 14 and is connected to the cowl louver 24 and the front fender by the shielding plate 40. A gap 44 between the panel 14 and the apron upper member 31 is closed. Therefore, the flow of hot air from the engine room interior 28 to the cowl interior 26 through the gap 44 between the cowl louver 24, the front fender panel 14 and the apron upper member 31 is blocked. As a result, it is possible to prevent the warm air from the interior 28 of the engine room from entering the vehicle interior, and to suppress the temperature rise in the vehicle interior.

  Further, in the present embodiment, the front fender panel is located at a position raised relative to the apron upper member 31 by connecting the shielding plate 40 in the vehicle width direction of the front vertical wall portion 30 of the cowl louver 24 as shown in FIG. Even in the structure in which the fourteen flanges 14B are provided, the gap 44 between the cowl louver 24, the front fender panel 14, and the apron upper member 31 can be blocked by one component (the shielding plate 40). As a result, the number of parts and assembly man-hours can be reduced.

  Although the present invention has been described in detail with respect to specific embodiments, the present invention is not limited to such embodiments, and various other embodiments are possible within the scope of the present invention. It will be apparent to those skilled in the art. For example, the shape of the shielding plate 40 is not limited to the shape shown in FIG.

It is the perspective view seen from the vehicle body diagonally forward inner side which shows the vehicle body front part structure which concerns on one Embodiment of this invention. It is the perspective view seen from the body slanting back outer side which shows the shielding board of the vehicle body front part structure which concerns on one Embodiment of this invention. It is the perspective view seen from the vehicle body diagonal front which shows the vehicle body front part to which the vehicle body front part structure which concerns on one Embodiment of this invention was applied.

Explanation of symbols

14 Front fender panel 24 Cowl louver 26 Inside cowl 28 Inside engine room 30 Front vertical wall of cowl louver 31 Apron upper member 40 Shield plate 42 Upper part of shielding plate 44 Clearance between cowl louver, fender and apron upper member 46 Lower part of shielding plate

Claims (1)

Left and right front fender panels that surround the engine room with the hood,
An apron upper member to which the front fender panel is fixed;
A cowl louver formed with a front vertical wall that partitions the interior of the cowl and the engine room ;
The outer peripheral portion of the front vertical wall portion in the vehicle width direction outer side portion of the along the vehicle width direction is disposed Rutotomoni upper and the vehicle width direction outer side portion of said cowl louver is joined to the inner surface of the front fender panel, the cowl louver wherein closing the gap between the front fender panel and the apron upper member, the vehicle body front structure, characterized in that it comprises a shielding plate, the blocking the flow from said inner engine room of hot air into the cowl inner and.

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