JP2013060158A - Vehicle body front structure of vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To more effectively reduce a damage value to be generated in an object by a reaction force of an impact force when an object made to be struck up by a collision of a front part of a vehicle falls and collides with an upper surface of a cowl louver and the impact force is given to the cowl louver.SOLUTION: A vehicle body front structure of a vehicle includes a sealing panel 40, which divides the inside of a front cowl 3 into a front and rear spaces 12a and 12b and whose upper end edge is connected to a supporting piece 38 of a cowl louver 24 by a connection tool 39. The connection tool 39 has a pair of connection pieces 43 and 44 protruding from the upper end edge of the sealing panel 40 toward un upper side and sandwiching the supporting piece 38 from front and rear sides. The connection piece 43 in either one-direction side of a front side and a rear side is made in a dog leg shape in a side surface view of the vehicle body 2, an upper end thereof is abutted on one direction side surface of the supporting piece 38, and a lower end thereof is positioned at the lower side than the supporting piece 38. The connection piece 44 on the other direction side is brought into surface contact with the other direction side surface of the supporting piece 38. A lower part side of the sealing panel 40 is bent toward the other direction relatively to an upper part side thereof.

Description

  The present invention relates to a vehicle body front structure of a vehicle that includes a water shielding panel that projects downward from a cowl louver and partitions a front cowl into front and rear spaces.

  Conventionally, there is a vehicle body front structure of the vehicle described in Patent Document 1 below. According to this publication, the vehicle body front structure of the vehicle extends in the width direction of the vehicle body, and each longitudinal section of the front cowl extends in the width direction of the vehicle body. A cowl louver covering from above, a support piece projecting downward from a midway part of the vehicle body in the front-rear direction of the vehicle body, and a vertical extension extending in the front cowl to divide the front cowl into front and rear spaces. And a water-impervious panel whose upper edge is connected to the support piece by a connector.

  The rear part of the front cowl is connected to an air introduction duct of a passenger compartment air conditioner, and an air introduction port in the air introduction duct opens into the rear space in the front cowl.

  When the air conditioner is driven while the vehicle is running, first, air outside the vehicle passes through the vent holes of the cowl louver and is sucked into the front space in the front cowl defined by the water shielding panel. The Next, the air is introduced into the air conditioner through the rear space and the air inlet sequentially, bypassing the water shielding panel from the front space. And after that, by supplying toward a vehicle interior, this vehicle interior is air-conditioned.

  In addition, as described above, when air flows from the front space in the front cowl partitioned by the water shielding panel to the rear space by bypassing the water shielding panel, water droplets such as rainwater contained in the air Is captured by being subjected to an inertial force such as colliding with the water shielding panel or toward the inner surface of the front cowl, and separated from the air. As a result, it is possible to prevent the inconvenience that water droplets are introduced into the air conditioner through the air inlet and flow into the passenger compartment.

JP 2004-58722 A

  By the way, while the vehicle is running, this vehicle collided with an object in front of it (front collision), and the object bounced up by this front collision dropped on the upper surface of the cowl louver and collided with a large impact force. And

  In the above case, in general, the cowl louver is deformed so as to bend downward due to the impact force from the object and the impact force is moderated to some extent, but the water shielding panel is lowered along with the downward deformation of the cowl louver. When the lower end is in pressure contact with the inner surface of the front cowl, further downward deformation of the cowl louver tends to be prevented. Then, the relaxation of the impact force applied from the object to the vehicle body, such as a cowl louver, is hindered, and the reaction force against the impact force is increased, which may increase the injury value generated on the object.

  Therefore, in order to reduce the injury value at the time of collision of the object, the following configuration may be considered. That is, the upper end portion of the water shielding panel is connected to the support piece by a shear pin or a heat welding portion. As described above, when the impervious panel is pressed against the inner surface of the front cowl when the object collides, and the impact force exceeds a predetermined value, the shear pin and the heat welded portion are broken by the impact force. Let me. If it does in this way, it will be thought that by the fracture | rupture by the said impact force, a water-shielding panel will detach | leave from the said support piece, the said impact force will be relieved, and the said injury value will be reduced. However, in the case of such a configuration, this configuration becomes complicated and the forming operation thereof becomes complicated.

  The present invention has been made paying attention to the above-described circumstances, and an object of the present invention is to cause an object that is bounced up by a frontal collision of a vehicle to fall and collide with the upper surface of the cowl louver. In the case where an impact force is applied, an injury value that is likely to occur in an object due to a reaction force of the impact force can be more effectively reduced.

  Moreover, the above-mentioned effective reduction of the injury value is to be achieved by an easy forming operation with a simple configuration.

The invention of claim 1 includes a front cowl 3 that extends in the width direction of the vehicle body 2 and each section in the longitudinal direction forms a U shape, and a cowl that extends in the width direction of the vehicle body 2 and covers the front cowl 3 from above. A louver 24, a support piece 38 that projects downward from a midway portion of the cowl louver 24 in the front-rear direction of the vehicle body 2 and extends in the width direction of the vehicle body 2, and extends in the vertical direction in the front cowl 3. In the vehicle body front part structure provided with a water shielding panel 40 which is provided so as to be partitioned into the rear spaces 12a and 12b and whose upper edge is connected to the support piece 38 by a connector 39,
The connecting tool 39 has a pair of connecting pieces 43 and 44 that protrude upward from the upper edge of the water shielding panel 40 and sandwich the support piece 38 from the front and rear. The connecting piece 43 on either one of the front and rear sides is formed in a dogleg shape that protrudes toward the one direction in a side view of the vehicle body 2 (FIG. 1), and its upper end is in the one direction of the support piece 38. The lower end portion is positioned below the support piece 38, and the connecting piece 44 on the other direction side is brought into surface contact with the surface on the other direction side of the support piece 38 to The vehicle body front structure of the vehicle is characterized in that the lower side of the water panel 40 is bent in the other direction.

  In addition, in this section, the reference numerals and drawing numbers appended to the above terms are not intended to limit the technical scope of the present invention to the “Example” section and the contents of the drawings described later.

  The effects of the present invention are as follows.

The invention according to claim 1 is a front cowl extending in the width direction of the vehicle body and each section in the longitudinal direction is U-shaped, a cowl louver extending in the width direction of the vehicle body and covering the front cowl from above, The cowl louver is provided so as to project downward from a midway portion in the front-rear direction of the vehicle body and extend in the width direction of the vehicle body, and to extend in the vertical direction to partition the front cowl into front and rear spaces, In the vehicle body front part structure including a water shielding panel whose upper edge is connected to the support piece by a connector,
The connecting tool has a pair of connecting pieces protruding upward from the upper edge of the water-impervious panel and sandwiching the support piece from the front and rear. The piece is formed in a dogleg shape protruding in the one direction in a side view of the vehicle body, its upper end is brought into contact with the surface on the one direction side of the support piece, and the lower end is more than the support piece. Position the lower side, and make the connecting piece in the other direction surface contact the surface of the supporting piece in the other direction side, and bend the lower side toward the other direction with respect to the upper side of the water shielding panel. The following effects occur.

  That is, while the vehicle is running, the vehicle collides with an object in front of it (front collision), and the object jumped up by the front collision falls on the upper surface of the cowl louver and collides with a large impact force. And

  Then, due to the impact force from the object, first, the cowl louver is deformed so as to bend downward, and the water shielding panel is lowered together with the downward deformation of the cowl louver. Next, the lower end portion of the water-impervious panel that has been lowered along with the downward deformation of the cowl louver starts to press against the inner bottom surface of the front cowl. From this state, it is assumed that the cowl louver is deformed downward by the impact force, and the water shielding panel is further lowered.

  Here, according to the present invention, as described above, the lower side of the water shielding panel is bent toward the other direction. For this reason, when the lower end portion of the water shielding panel lowered as described above is pressed against the inner bottom surface of the front cowl, the lower end portion of the water shielding panel immediately slides smoothly on the inner bottom surface in the other direction. And the said water-shielding panel rotates to the other direction side centering | focusing on the said connector. Then, while the lower side of the connecting piece on the other direction side separates from the surface on the other direction side of the supporting piece in the other direction side, at least the connecting piece on the one direction side with respect to the one direction side surface of the supporting piece Until the surface comes into contact, as described above, the water shielding panel smoothly rotates in the other direction around the connector.

  Therefore, as described above, the deformation of the cowl louver in the downward direction due to the impact force due to the smooth rotation of the water shielding panel in the other direction centering on the connector is the pressure contact with the inner bottom surface of the front cowl. It is allowed smoothly without being disturbed by the water shielding panel. For this reason, the impact force applied to the vehicle body side such as the cowl louver is effectively reduced, and as a result, the reaction force applied to the object from the vehicle body side such as the cowl louver is effectively reduced. Thus, the injury value that is about to occur in the object can be reduced more effectively.

  Further, as described above, when the lower end portion of the water-impervious panel descending with the downward deformation of the cowl louver starts to come into pressure contact with the inner bottom surface of the front cowl, the water-impervious panel immediately becomes the other direction side with the coupling tool as the center. To allow downward deformation of the cowl louver, the reaction force applied to the object immediately after the collision of the object is alleviated, and the injury value can be reduced more quickly and reliably. .

  In addition, the effective reduction of the injury value described above is achieved by devising each shape of the water shielding panel and a connector for connecting the water shielding panel to the support piece. Effective reduction can be achieved with a simple configuration while suppressing an increase in the number of parts, and the forming operation can be facilitated as much as the number of parts can be reduced.

It is an II sectional view expanded sectional view of the FIG. It is a top view of a vehicle body front part. It is a perspective view of a cowl louver. FIG. 4 is an enlarged sectional view taken along line IV-IV in FIG. 2. FIG. 2 is an explanatory diagram of a partial enlargement operation of FIG. 1.

  The vehicle body front structure according to the present invention relates to the reaction force of the impact force when an object splashed up by the front impact of the vehicle falls and collides with the upper surface of the cowl louver and gives an impact force to the cowl louver. In order to realize the purpose of more effectively reducing the injury value that is to occur on the object, the form for carrying out the present invention is as follows.

  That is, the front structure of the vehicle body extends in the width direction of the vehicle body, and a front cowl whose longitudinal section is U-shaped, and a cowl louver extending in the width direction of the vehicle body and covering the front cowl from above. The cowl louver projecting downward from a midway portion in the longitudinal direction of the vehicle body and extending in the width direction of the vehicle body, and extending in the vertical direction so as to partition the front cowl into front and rear spaces. And a water-impervious panel whose upper edge is connected to the support piece by a connector.

  The said connector has a pair of connection piece which protrudes upwards from the upper end edge part of the said water-impervious panel, and pinches | interposes the said support piece from front and back. Of these two connecting pieces, the connecting piece on either one of the front and rear sides has a dogleg shape projecting toward the one direction in a side view of the vehicle body, and its upper end is in the one direction of the support piece. It is made to contact | abut to the surface of a side and a lower end part is located below rather than the said support piece. On the other hand, the connecting piece in the other direction is brought into surface contact with the surface in the other direction of the support piece. In addition, the lower side is bent in the other direction with respect to the upper side of the water shielding panel.

  In order to explain the present invention in more detail, an embodiment thereof will be described with reference to the accompanying drawings.

  1-4, the code | symbol 1 is a vehicle illustrated with the motor vehicle, and the arrow Fr has shown the front of the advancing direction of this vehicle 1. In FIG. The left and right described below refer to the width direction of the vehicle body 2 of the vehicle 1 toward the front.

  The vehicle body 2 is provided with a front cowl 3 that extends in the width direction of the vehicle body 2 and is supported at both ends at intermediate portions in the vertical direction of left and right front pillars (not shown). Each of the front pillars and the front cowl 3 constitute a skeleton member of the vehicle body 2. The front cowl 3 is made of sheet metal, and each section in the longitudinal direction is U-shaped. Specifically, the front cowl 3 extends substantially horizontally with the front and rear plates 6 and 7 facing away from each other in the front-rear direction, and the lower end edges of the front and rear plates 6 and 7 are integrated with each other. And the front and rear flanges 9 and 10 which are integrally joined to the upper edge portions of the front and rear plates 6 and 7, respectively.

  A cowl reinforcing panel 13 made of sheet metal is provided so as to cover the rear portion of the internal space 12 of the front cowl 3 from above. The rear end edge of the cowl reinforcing panel 13 is spot-welded S1 to the rear outward flange 10 of the front cowl 3, and the front cowl 3 is reinforced throughout the width direction of the vehicle body 2 by the cowl reinforcing panel 13. . Below the front cowl 3, a sheet metal dash panel 14 extending in the width direction and the vertical direction of the vehicle body 2 is provided, and the bottom plate 8 of the front cowl 3 and the upper edge of the dash panel 14 are spot welded S2. Has been.

  A front window panel 18 that closes a front window opening 17 surrounded by the upper portions of the left and right front pillars and the cowl reinforcing panel 13 is provided. The interior space of the rear part of the vehicle body 2 behind the front cowl 3, the dash panel 14, and the wind panel 18 is defined as a vehicle compartment 20, and the interior space of the front part of the vehicle body 2 in front of the dash panel 14 is defined as an engine room 21. .

  A resin-made cowl louver 24 that extends long in the width direction of the vehicle body 2 and extends in the front-rear direction and covers the front portion of the internal space 12 of the front cowl 3 from above is provided. The front end edge of the cowl louver 24 is supported on the upper surface of the front outward flange 9 of the front cowl 3. The rear end edge portion of the cowl louver 24 is supported on the upper surface of the front end edge portion of the window panel 18, and the front cowl 3 is interposed via the front end edge portion of the window panel 18 and the cowl reinforcing panel 13. Is supported by the rear outward flange 10. That is, the cowl louver 24 is supported at both ends by the front and rear edge portions of the front cowl 3.

  A front space of the cowl louver 24 is a vehicle body opening 26 that opens the engine room 21 upward, and a hood 27 that closes the vehicle body opening 26 from above is provided. An elastic seal 28 is provided which is attached to the front end edge of the cowl louver 24 and seals between the front end edge of the cowl louver 24 and the lower surface of the rear end of the hood 27.

  A large number of air holes 31 are formed in the front portion of the left side portion of the cowl louver 24 to allow air 30 outside the vehicle 1 to be introduced into the internal space 12 of the front cowl 3. Further, in the width direction of the vehicle body 2, the air conditioning for the vehicle compartment 20 that introduces the air 30 in the inner space 12 of the front cowl 3 to the rear plate 7 on the left side of the front cowl 3 at the same position as the vent hole 31. An air introduction duct 34 of the device 33 is attached, and an air introduction port 35 in the air introduction duct 34 opens into the internal space 12 in the front cowl 3.

  On the left side portion of the cowl louver 24, a support piece 38 that integrally projects downward from a midway portion in the front-rear direction of the cowl louver 24 and extends in the width direction of the vehicle body 2 is provided. Further, a resin water-impervious structure that is formed to extend in the vertical direction and in the rearward downward inclination direction and to extend in the width direction of the vehicle body 2, and whose upper edge is coupled to the support piece 38 by the coupling tool 39. A panel 40 is provided.

  The vent hole 31 group of the cowl louver 24 and the water shielding panel 40 are disposed at the same place in the width direction of the vehicle body 2, and the dimensions of the vehicle body 2 in the width direction are substantially the same. And the said water-impervious panel 40 divides the upper part side of the internal space 12 in the left side part of the said front cowl 3 into front and back space 12a, 12b, and the said vent hole 31 group and the said air inlet 35 are divided. It is provided so as to partition in the front and rear.

  The connecting tool 39 has a pair of front and rear connecting pieces 43 and 44 that protrude integrally upward from the upper end edge of the water shielding panel 40 and sandwich the support piece 38 from the front and rear. A plurality of these front and rear connecting pieces 43, 44 are provided in the width direction of the vehicle body 2. The front and rear connecting pieces 43 and 44 are alternately arranged in a staggered manner one by one in the width direction of the vehicle body 2.

  Of the front and rear connecting pieces 43, 44, the front connecting piece 43 has a dogleg shape projecting forward in a side view of the vehicle body 2 (FIG. 1). The upper end of the front connecting piece 43 is brought into contact (including pressure contact) with the front surface of the support piece 38, and the lower end of the front connecting piece 43 is positioned below the support piece 38. On the other hand, the rear connecting piece 44 is brought into surface contact (including surface pressure contact) with the rear surface of the support piece 38. Further, the water shielding panel 40 is bent toward the rear on the lower side with respect to the upper side, and the water shielding panel 40 is bent in the shape of a dog that projects forward in the middle part in the vertical direction. A portion 45 is provided. The bent portion 45 is formed over the entire water shielding panel 40 in the width direction of the vehicle body 2.

  Further, the support piece 38 is formed with a plurality of locking portions 47 in the width direction of the vehicle body 2, and the rear connecting piece 44 of the connector 39 is engaged with the locking portions 47 so as to be able to be locked and detached. A locked portion 48 to be stopped is formed. Specifically, the locking portion 47 is a locking hole penetrating the support piece 38, and the locked portion 48 is fitted (including press-fit) into the locking portion 47 and locked. This is a locking projection. Then, when the locked portion 48 is locked to the locking portion 47, the coupling tool 39 and the water shielding panel 40 are positioned with respect to the support piece 38, and the water shielding is performed with respect to the support piece 38. The panel 40 is more reliably connected, and the water shielding panel 40 is prevented from falling off from the support piece 38.

  When the air conditioner 33 is driven while the vehicle 1 is running, first, the front cowl in which the air 30 outside the vehicle 1 is partitioned by the water shielding panel 40 through the air holes 31 of the cowl louver 24. 3 is sucked into the front space 12a. Next, the air 30 bypasses the water shielding panel 40 from the front space 12a and is introduced into the air conditioner 33 through the rear space 12b and the air inlet 35 sequentially. And after that, by supplying toward the compartment 20, the compartment 20 is air-conditioned.

  Further, as described above, when the air 30 flows from the front space 12a in the front cowl 3 partitioned by the water shielding panel 40 to the rear space 12b by bypassing the water shielding panel 40, the air 30 Water droplets such as rainwater contained in the water are captured and separated from the air 30 by impinging on the water shielding panel 40 or applying an inertial force toward the inner surface of the front cowl 3. This prevents the occurrence of inconvenience that water droplets are introduced into the air conditioner 33 through the air inlet 35 and flow into the passenger compartment 20.

  On the other hand, while the vehicle 1 having the above-described configuration is traveling, the vehicle 1 collides with a certain object ahead (front collision), and the object bounced up by the front collision falls on the upper surface of the cowl louver 24. Assume that the vehicle collides with a large impact force F.

  In the above case, at the initial stage of the collision of the object, the cowl louver 24 is first deformed so as to bend downward by the impact force F from the object. 40 goes down.

  In FIG. 5, in the middle stage of the collision of the object, the lower end portion of the water shielding panel 40 that is lowered along with the downward deformation of the cowl louver 24 is pressed against the upper surface of the bottom plate 8 that is the inner bottom surface of the front cowl 3. Start (solid line in FIG. 5). From this state, it is assumed that the cowl louver 24 is deformed downward as indicated by a one-dot chain line in FIG. 5 and the water shielding panel 40 is further lowered.

  Here, as described above, the lower side of the water shielding panel 40 is bent backward. For this reason, when the lower end portion of the water shielding panel 40 lowered as described above is pressed against the upper surface of the bottom plate 8 of the front cowl 3, the lower end portion of the water shielding panel 40 immediately follows the upper surface of the bottom plate 8. The water-impervious panel 40 rotates backward R about the connector 39. Then, the locking of the locked portion 48 to the locking portion 47 is released, and the lower side of the rear connecting piece 44 is separated rearward from the rear surface of the support piece 38, while the front side of the support piece 38 is On the other hand, until at least the front connecting piece 43 comes into surface contact, as described above, the water shielding panel 40 is smoothly rotated backward R about the connecting tool 39.

  Accordingly, as described above, the downward deformation of the cowl louver 24 due to the impact force F is pressed against the upper surface of the bottom plate 8 by the amount that the water shielding panel 40 smoothly rotates rearward R about the connector 39. It is allowed smoothly without being obstructed by the water shielding panel 40. Therefore, the impact force F applied to the vehicle body 2 side such as the cowl louver 24 is effectively reduced, and as a result, the reaction force applied to the object from the vehicle body 2 side such as the cowl louver 24 is effectively reduced. Therefore, the injury value that is likely to occur in the object due to the reaction force can be more effectively reduced.

  Further, as described above, when the lower end portion of the water shielding panel 40 that has been lowered with the downward deformation of the cowl louver 24 starts to come into pressure contact with the upper surface of the bottom plate 8, the water shielding panel 40 immediately centers the connector 39. Since the cowl louver 24 is allowed to rotate downward and allow the cowl louver 24 to be deformed downward, the reaction force immediately applied to the object at the time of collision of the object is alleviated, and the injury value can be reduced more quickly and reliably. It is said.

  Further, the effective reduction of the injury value described above is achieved by devising each shape of the water shielding panel 40 and the connecting tool 39 for connecting the water shielding panel 40 to the support piece 38. The effective reduction of the injured value can be achieved with a simple configuration while suppressing an increase in the number of parts, and the forming operation can be facilitated as much as the number of parts can be reduced.

  In the above case, setting the amount of rotation of the rear rotation R of the water shielding panel 40 to a desired value can be achieved by variously selecting the angle of the V shape of the front connecting piece 43.

  Further, as a later stage of the collision of the object, the lower end portion of the water shielding panel 40 slides backward on the upper surface of the bottom plate 8 of the front cowl 3 and then presses against the front surface of the rear plate 7 of the front cowl 3. Alternatively, the bent portion 45 of the water-impervious panel 40 may be deformed so as to be bent so that energy based on the impact force F is absorbed and the impact force F is relaxed.

  In addition, although the above is based on the example of illustration, each structure of the said support piece 38, the front of the connection tool 39, the rear connection pieces 43 and 44, the water shielding panel 40, the latching | locking part 47, and the to-be-latched part 48 is implemented above. The example may be reversed in the front-rear direction. Moreover, the said connecting tool 39 may be formed separately from the said water shielding panel 40, and may be fixed to the upper end part of this water shielding panel 40 with a fixing tool.

DESCRIPTION OF SYMBOLS 1 Vehicle 2 Car body 3 Front cowl 6 Front plate 7 Rear plate 8 Bottom plate 9 Outward flange 10 Outward flange 12 Internal space 12a Front space 12b Rear space 13 Cowl reinforcement panel 20 Car compartment 24 Cowl louver 30 Air 31 Ventilation hole 33 Air conditioner 34 Air introduction duct 35 Air introduction port 38 Support piece 39 Connection tool 40 Water shielding panel 43 Connection piece 44 Connection piece 45 Bending portion 47 Locking portion 48 Locked portion F Impact force R Backward rotation

Claims (1)

A front cowl that extends in the width direction of the vehicle body, and each section in the longitudinal direction forms a U-shape, a cowl louver that extends in the width direction of the vehicle body and covers the front cowl from above, and a longitudinal direction of the vehicle body in the cowl louver And a support piece that protrudes downward from the middle part of the vehicle and extends in the width direction of the vehicle body, and is provided so as to divide the front cowl into front and rear spaces extending in the vertical direction, and the upper edge of the support piece In the vehicle body front structure with a water shielding panel connected to the piece by a connector,
The connecting tool has a pair of connecting pieces protruding upward from the upper edge of the water-impervious panel and sandwiching the support piece from the front and rear. The piece is formed in a dogleg shape protruding in the one direction in a side view of the vehicle body, its upper end is brought into contact with the surface on the one direction side of the support piece, and the lower end is more than the support piece. On the other hand, the connecting piece in the other direction is brought into surface contact with the surface in the other direction of the support piece, and the lower side is bent in the other direction with respect to the upper side of the water shielding panel. A vehicle body front structure characterized by the above.

Images