JP2018149830A - Vehicle front structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve a vehicle front structure capable of reducing a collision load to a collision object that collides a hood.SOLUTION: Provided in a vehicle widthwise direction at an end 17 of a cowl louver 16 disposed along the lower edge of a front windshield glass with the vehicle widthwise direction being as a lengthwise direction is a side wall portion 24 that protrudes substantially upwardly relative to a vehicle. Moreover, a straightening vane 28 which is extended so as to be continuous from the side wall portion 24 and which is more flexible than the side wall portion 24 is also provided. A front straightening portion 34 of this straightening vane 28 is disposed at a vehicle downward side relative to a hood 14, and protrudes substantially upwardly relative to the vehicle and beyond the side wall portion 24. Hence, when a pedestrian collides and the hood 14 is deformed so as to be bent downwardly relative to the vehicle, the front straightening portion 34 first abuts, and thus a deformation of the hood 14 is not suppressed rather than abutment to the side wall portion 24 of the cowl louver 16. Accordingly, the deformation of the hood 14 can reduce a collision load applied to a collision object 44.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a vehicle front structure.

  Patent Document 1 below discloses a cowl louver. The cowl louver is formed of a hard resin, and extends in the vehicle width direction along the lower edge of the front windshield glass on the vehicle lower side of the hood. At both ends of the cowl louver in the vehicle width direction, rectifying plates that prevent hot air from the engine room from leaking to the vicinity of the front pillar are formed integrally with the cowl louver via a soft resin.

JP2015-112985A

  By the way, the cowl louver disclosed in Patent Document 1 is formed with a lateral wall portion that protrudes substantially upward in the vehicle along the longitudinal direction of the cowl louver and is integrally connected to a pair of left and right rectifying plates. Therefore, if a collision object such as a pedestrian collides from above the hood at the time of a pedestrian collision, the lateral wall of the cowl louver may contact the hood and the deformation of the hood may be inhibited, thereby increasing the collision load that the collision object receives. In this respect, the above prior art has room for improvement.

  In view of the above facts, an object of the present invention is to obtain a vehicle front structure that can reduce a collision load on a collision body that collides with a hood.

  The vehicle front structure according to the first aspect of the present invention includes a cowl louver disposed with the vehicle width direction as a longitudinal direction along the lower edge of the front windshield glass, a vehicle lower side of a hood, and at least a vehicle of the cowl louver. A lateral wall portion that is provided at both ends in the width direction, extends substantially along the vehicle longitudinal direction and projects substantially upward of the vehicle, and extends continuously from the lateral wall portion and is more flexible than the lateral wall portion. And a portion of the hood disposed on the vehicle lower side of the hood and a portion disposed on the vehicle lower side of the hood protruding substantially upward of the vehicle from the lateral wall portion. And have.

  According to the first aspect of the present invention, the cowl louver is provided along the lower edge of the front windshield glass with the vehicle width direction as the longitudinal direction. Further, at the vehicle lower side of the hood and at least both ends of the cowl louver in the vehicle width direction, lateral wall portions that extend substantially along the vehicle front-rear direction and project substantially upward of the vehicle are provided. Furthermore, a rectifying plate is provided that extends continuously with the lateral wall portion and is more flexible than the lateral wall portion. At least a part of the rectifying plate is disposed on the vehicle lower side of the hood, and a portion disposed on the vehicle lower side of the hood projects substantially upward from the lateral wall portion. Therefore, when a collision object collides from above the hood during a pedestrian collision, the hood is deformed so that it bends to the lower side of the vehicle. At this time, the hood is placed on the current plate that is more flexible than the lateral wall of the cowl louver. Since it abuts first, the deformation of the hood is suppressed more than when it abuts on the lateral wall portion of the cowl louver. For this reason, the collision load which a collision body receives by changing a hood can be reduced.

  The vehicle front structure according to the first aspect of the present invention has an excellent effect that it is possible to reduce a collision load on a collision body that collides with the hood.

It is a schematic perspective view which shows the state which looked at the cowl louver which has the vehicle front part structure which concerns on one Embodiment toward the vehicle rear side from the vehicle front side. It is a schematic perspective view which shows the state which looked at the cowl louver which has a vehicle front part structure which concerns on one Embodiment toward the vehicle front side from the vehicle rear side. It is a schematic sectional drawing which shows the state which looked at the hood at the time of a pedestrian collision from the vehicle side surface.

  Hereinafter, an embodiment of the present invention will be described with reference to FIGS. In these figures, the arrow FR indicates the front side in the vehicle longitudinal direction, the arrow OUT indicates the vehicle width direction outside, and the arrow UP indicates the vehicle vertical direction upper side.

  As shown in FIG. 1, a hood 14 (two-dot chain line in FIG. 1) and a cowl louver 16 are provided at the front of the vehicle 12 to which the vehicle front structure 10 according to the present embodiment is applied. Yes. The hood 14 is disposed along the vehicle front-rear direction and the vehicle width direction, and covers a power unit chamber 18 in which a power unit (not shown) is mounted so that it can be opened and closed from the vehicle upper side.

  A lower portion of a front windshield glass (not shown) is disposed on the vehicle rear side of the hood 14. A lower end portion of the front windshield glass on the vehicle lower side is disposed on the vehicle lower side of the rear end portion 20 on the vehicle rear side of the hood 14. The rear end 22 of the cowl louver 16 on the vehicle rear side is joined to the lower end of the front windshield glass via a seal member.

  The cowl louver 16 is made of a hard material (for example, a resin such as polypropylene) as an example, and extends in the vehicle width direction along the lower end portion of the front windshield glass. It extends over the lower end. The cowl louver 16 extends from the lower end portion of the front windshield glass toward the vehicle front side, and is disposed on the vehicle lower side of the rear end portion 20 of the hood 14.

  At both ends of the hood 14 on the vehicle lower side and the cowl louver 16 in the vehicle width direction, lateral wall portions 24 are formed that protrude substantially upward of the vehicle. The lateral wall portion 24 is provided substantially along the vehicle front-rear direction. Specifically, the lateral wall portion 24 extends obliquely from the end 17 in the vehicle width direction of the cowl louver 16 toward the vehicle front side as it goes inward in the vehicle width direction. It is installed. The pair of left and right lateral wall portions 24 are integrally connected in the vehicle width direction by a connecting wall portion 26 that protrudes substantially upward of the vehicle. The lateral wall portion 24 and the connecting wall portion 26 provided in the cowl louver 16 prevent rainwater and wind from entering the power unit chamber 18 from between the front windshield glass and the hood 14.

  A rectifying plate 28 is provided on the vehicle rear side of the lateral wall portion 24. The rectifying plate 28 is made of a soft material (such as rubber) that is more flexible than the cowl louver 16, protrudes substantially upward of the vehicle, and continues substantially to the front and rear of the vehicle continuously with the lateral wall portion 24. It extends integrally with the lateral wall portion 24 along the direction. The rectifying plate 28 includes a front rectifying unit 34 and a rear rectifying unit 35. The front rectifying unit 34 is formed in a plate shape having a substantially vehicle width direction as a plate thickness direction, and a front end 30 is formed. The lateral wall portion 24 is connected to the rear end portion 32. The front rectifying unit 34 is disposed on the vehicle lower side of the hood 14 and protrudes substantially upward of the vehicle from the lateral wall 24. That is, the upper end portion 36 of the front side rectifying unit 34 is disposed on the vehicle upper side with respect to the upper end portion 40 of the lateral wall portion 24.

  The rear side rectification unit 35 is disposed on the vehicle rear side of the front side rectification unit 34 and is formed in a substantially plate shape having a substantially vehicle width direction as a plate thickness direction. Further, the rear side rectification unit 35 is curved outward in the vehicle width direction toward the vehicle rear side. As shown in FIG. 2, the lower end portion 42 on the rear end side of the rear rectifying portion 35 is formed to be curved along a design surface (not shown) of the front pillar. The front pillar is moved in a state where the traveling wind W (see FIG. 1) flowing on the cowl louver 16 outward in the vehicle width direction is rectified by the connecting wall portion 26, the lateral wall portion 24, and the rectifying plate 28 of the cowl louver 16 described above. It is guided to the rear side of the vehicle to get over. Thereby, the wind noise is reduced.

(Operation and effect of the first embodiment)
Next, the operation and effect of this embodiment will be described.

  In the present embodiment, as shown in FIG. 1, a cowl louver 16 is provided along the lower edge of the front windshield glass with the vehicle width direction as the longitudinal direction. Further, a lateral wall portion 24 extending substantially along the vehicle front-rear direction and projecting substantially upward is provided at the vehicle lower side of the hood 14 and the end portion 17 of the cowl louver 16 in the vehicle width direction. . Furthermore, a rectifying plate 28 that extends continuously with the lateral wall portion 24 and is more flexible than the lateral wall portion 24 is provided. The rectifying plate 28 has a front rectifying portion 34, the front rectifying portion 34 is disposed on the vehicle lower side of the hood 14, and the front rectifying portion 34 protrudes substantially upward of the vehicle from the lateral wall portion 24. . Therefore, as shown in FIG. 3, when a collision body 44 (for example, a pedestrian's head) collides from above the hood 14 at the time of a pedestrian collision, the hood 14 is deformed so as to bend downward in the vehicle (two in the figure). In this case, since the hood 14 comes into contact with the front rectifying portion 34 of the rectifying plate 28 having more flexibility than the lateral wall portion 24 of the cowl louver 16, the hood 14 comes into contact with the lateral wall portion 24 of the cowl louver 16. Therefore, the deformation of the hood 14 is not suppressed. For this reason, the collision load which the collision body 44 receives by changing the hood 14 can be reduced. Thereby, the collision load to the collision body 44 colliding with the hood 14 can be reduced.

  Moreover, since the baffle plate 28 is comprised integrally with the horizontal wall part 24, since a number of parts can be reduced, cost can be reduced.

  In the above-described embodiment, the front rectifying unit 34 of the rectifying plate 28 is configured on the vehicle lower side of the hood 14. However, the configuration is not limited thereto, and the front rectifying unit 34 and the rear rectifying unit 35 Both, that is, the entire rectifying plate 28 may be arranged on the vehicle lower side of the hood 14.

  Further, the rectifying plate 28 is configured to extend continuously and integrally with the lateral wall portion 24, but is not limited thereto, and a slight gap is provided between the rectifying plate 28 and the lateral wall portion 24. It is good also as a structure.

  The embodiment of the present invention has been described above, but the present invention is not limited to the above, and various modifications other than those described above can be implemented without departing from the spirit of the present invention. Of course.

10 vehicle front structure 14 hood 16 cowl louver 17 end (end of cowl louver in the vehicle width direction)
24 Horizontal wall part 28 Current plate

Claims (1)

A cowl louver arranged with the vehicle width direction as the longitudinal direction along the lower edge of the front windshield glass;
A lateral wall portion that is provided at the vehicle lower side of the hood and at least at both ends in the vehicle width direction of the cowl louver, extends substantially along the vehicle longitudinal direction, and projects substantially upward of the vehicle;
A portion that extends continuously with the lateral wall portion and is more flexible than the lateral wall portion, and at least a part of the hood is disposed on the vehicle lower side of the hood and on the vehicle lower side of the hood. Is a rectifying plate that protrudes substantially above the vehicle from the lateral wall portion,
A vehicle front structure having: