JP2009018647A - Fender supporting structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fender supporting structure capable of mounting a supporting member coupling and supporting a front fender panel to a vehicle body frame member without being restricted by the structure or mounting position of a vehicle body frame member of a mounting target, and synchronizing a deforming direction in collapse of the supporting member with a deforming direction of a fixed portion between the supporting member and the front fender panel. <P>SOLUTION: The supporting member 4 for supporting the fender panel 3 is provided on the vehicle body frame member 5. In the supporting member 4, two side walls 14, 15 erected each with a plate surface set vertical are coupled through a top plate 16. The two side walls 14, 15 are composed of a first side wall 14 equipped with an outward beam 23, and a second side wall 15 equipped with an inward bead 29, and can be compressed and deformed according to displacement in fore-and-aft and right and left directions of a vehicle at the time of collapse. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a fender support structure for supporting a fender panel on a vehicle body skeleton member, and in particular, supports the fender panel via a support member that is disposed on the vehicle body skeleton member and can compressively deform by a load and absorb shock. The present invention relates to a fender support structure.

  Conventionally, to mitigate impact, a front fender panel that forms the front side of an automobile is connected to a so-called wheel apron in the engine room or an upper side of a radiator support in the engine room or a vehicle body skeleton around it through a support member called a raised bracket. A technique for fixing to a member is known. This is because the front fender panel and the body frame member that is the supporting base are raised so that the front fender panel compresses and deforms downward when a downward load of a predetermined value or more is applied. A clearance for compressive deformation is secured by interposing a bracket.

  As shown in FIGS. 7 to 10, the conventional raised brackets 104 and 204 have two side walls 114, 115, 214, and 215 that are erected facing each other, and the top plate to which the fender panels 103 and 203 are fixed. The lower end portions of the side walls 114, 115 and 214, 215 are fixed to the vehicle body skeleton members 105 and 205 for use. The fender panels 103 and 203 and the top plates 116 and 216 are fixed to the bolt mounting holes 130 and 230 drilled in the top plate and the bolt mounting holes 132 and 232 drilled in the fender panels 103 and 203. This is done by screwing 133 and 233 together. In this way, the side edges of the bonnets 106 and 206 reinforced from the back side by the reinforcing plates 110 and 210 are supported by the fender support structures 101 and 201, and when a high load is applied, their periphery is compressed and deformed. It is designed to buffer.

  In the raised brackets 104 and 204 having such a structure, the fender support structure 101 of the front and rear type in which the side walls 114 and 115 are respectively disposed in the front-rear direction of the vehicle body as in the technique disclosed in Patent Document 1, and the side wall 214. , 215 are respectively known as a left and right type fender support structure 201 arranged in the vehicle width direction.

As shown in FIGS. 7 and 8, the raised bracket 104 in the front and rear type is a folded ridge line 123, 129 formed in the horizontal direction approximately at the center in the height direction of the side walls 114, 115, and the side walls 114, 115. Is configured to collapse in half and absorb the impact. On the other hand, as shown in FIGS. 9 and 10, the raised bracket 204 in the left and right type is arranged in such a manner that two side walls 214 and 215 facing each other in advance are inclined in parallel to each other, and a high load is applied. Is configured so as to absorb an impact by tilting in the same direction as the tilt and the raised bracket 204 is crushed.
JP 2006-306121 A

  However, in the conventional raised brackets such as these, there are structural limitations on the arrangement of the two side walls facing each other, and the structure and attachment of the body frame members such as the fender apron and the radiator support upper side to be attached There was a problem that it could not be installed depending on the position.

  Further, the displacement of the fender mounting bolt portion other than the vehicle vertical direction when subjected to an impact can occur in the front-rear and left-right directions depending on each case. Therefore, it is necessary to match the deformation direction of the side wall of the raised bracket with the displacement direction of the fixing portion of the fender mounting bolt. However, the front / rear type raised bracket has a small displacement capability in the left / right direction, and the left / right type raised bracket has a small displacement between the fixed portion and the tendency to displace, which reduces the shock absorption performance. .

  The present invention was created in view of the above problems, and the support member for connecting and supporting the front fender panel to the vehicle body frame member is limited to the structure and the installation position of the vehicle body frame member to be attached. A fender support structure that can be attached to the vehicle body skeleton member without any change, and can synchronize the deformation direction of the support member when the support member is crushed with the displacement direction of the fixing portion between the support member and the front fender panel. The purpose is to provide.

  In order to achieve the above object, the means adopted by the fender support structure of the present invention includes a support member for supporting the fender panel on the vehicle body skeleton member, and the support member stands in different plate surface directions. Two side walls to be provided are connected via a top plate. The plate surface directions of the two side walls are preferably set substantially perpendicular to each other.

  The two side walls preferably consist of a first side wall with an outward bead and a second side wall with an inward bead, the two side walls being connected to each other via a connecting member at their lower part Has been.

  One side wall may be disposed on the vehicle body skeleton member at the front side portion of the vehicle body, and the other side wall may be disposed on the vehicle body skeleton member at the front side portion of the vehicle body.

  According to the present invention, a support member formed by connecting two side walls erected with substantially perpendicular plate surface directions via a top plate is interposed between a vehicle body skeleton member and a fender panel. By being configured to support, it is possible to attach regardless of the arrangement position on the vehicle body skeleton member to which the support member is attached and the structure of the vehicle body skeleton member. It can also cope with displacement in the direction.

  Of the two side walls connected through the top plate of the support member, the first side wall is formed with an outward bead and the second side wall is formed with an inward bead, whereby the support member is compressed and deformed. In some cases, the first side wall is deformed to be folded in two while the bead portion is displaced outwardly of the support member, and the second side wall is folded in two while the bead portion is displaced inward of the support member. Thus, the side walls can be compressed and deformed without interfering with each other, so that the shock absorbing performance can be improved.

  Furthermore, according to the fender support structure of the present invention, it is possible to adjust the displacement direction at the time of compressive deformation of the support member by adjusting the direction of the beads formed on each side wall and the plate surface direction between the side walls. Since the support member can be compressed and deformed in accordance with the displacement tendency of the fixing portion between the fender panel and the top plate of the support member when a load is applied, the impact absorbing performance can be improved.

  By connecting the lower part of the side walls with the connecting part, when fixing the support member to the vehicle body skeleton part, the stability of the three-dimensional shape is improved, and it is easily attached by spot welding without degrading the quality In addition, the quality can be improved and made uniform, and by making the lengths of the deformed portions of the side walls equal, the displacement tendency in a specific direction does not occur, and the impact absorbing performance can be improved.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings (FIGS. 1 to 6). As shown in FIGS. 1 to 4, the fender support structure 1 of the present embodiment connects a front fender panel 3 to a vehicle body skeleton member 5 via a support member 4 inside the engine room 2 on the front side of the vehicle. Support. The application target of the fender support structure 1 includes an engine room 2 in front of the vehicle, such as a so-called sedan, an ordinary passenger car, an RV car, a minivan, and the like, and covers a hood 6 that covers the engine room 2 from above and the side. Although the vehicle has the front fender panel 3, it is needless to say that the engine room 2 and the engine (not shown) are not necessarily disposed in front of the vehicle.

  The front fender panel 3 forms an outer wall that covers the side of the engine room 2 in front of the vehicle. The front fender panel 3 has an external appearance and is isolated from the outside by surrounding the engine room 2 and the upper part of the front wheels. It is intended to improve. The front fender panel 3 is formed by molding a thin metal plate into a predetermined shape, covers from the lower end to the upper end of the side portion of the engine room 2, and a predetermined portion is fixed and held on the vehicle body skeleton member 5.

  As shown in FIG. 3, the upper portion of the front fender panel 3 has a curved portion 7 that is bent by a predetermined width with a roundness toward the inside of the engine room 2, and a tip of the curved portion 7 is bent substantially vertically downward. And a horizontal portion 9 formed by bending the lower end of the inner wall portion 8 substantially horizontally toward the inside of the engine room 2. Above the horizontal portion 9, a side edge portion of the bonnet 6 in the closed state is positioned so as to support the bonnet 6. The bonnet 6 has a side edge portion reinforced by a reinforcing plate 10 that protrudes downward and has a curved cross section. As shown in FIGS. 1 and 2, a skeleton portion 12 of a fender apron 11, which is a part of a vehicle body skeleton member 5 disposed at a predetermined interval from the horizontal portion 9, substantially vertically below the horizontal portion 9. positioned.

The vehicle body skeleton member 5 is a member that forms the skeleton of the vehicle body inside the engine room 2, and includes a fender apron 11 that forms a skeleton that reinforces the front side of the vehicle, and a radiator support 13 that forms a skeleton that reinforces the front of the vehicle. Composed.
The fender apron 11 is long in the longitudinal direction of the vehicle as a whole, and extends in the longitudinal direction of the vehicle on the arch-shaped curved portion formed so as to cover a part of the upper part of the front wheel, and on the arch-shaped curved portion. It has a substantially rectangular tube-shaped skeleton portion 12 that is sturdy and is disposed on the left and right front sides of the vehicle.
As shown in FIGS. 2, 4 and the like, the radiator support 13 has a generally cross-sectional shape extending in the vehicle width direction as a whole, and both ends of the front end of the fender apron 11 disposed on the left and right sides of the vehicle. The overall height position is slightly higher than the height position of the fender apron 11, and the radiator is reinforced while reinforcing the front part of the vehicle. It plays the role which protects each part in the engine room 2 centering on (not shown).

The support member 4 is interposed between the front end of the horizontal portion 9 of the front fender panel 3 and the vehicle body skeleton member 5 positioned vertically below, and supports the front fender panel 3 while being connected to the vehicle body skeleton member 5. It has a predetermined height.
As shown in FIG. 5, the support member 4 is made of steel, and is formed by connecting two side walls 14 and 15 in the plate surface direction perpendicular to each other in the vehicle horizontal direction via a top plate 16 at their upper ends. These side walls 14 and 15 are composed of a first side wall 14 and a second side wall 15. The angle formed between the first side wall 14 and the second side wall 15 is preferably about 90 ° in the horizontal direction of the vehicle. If the angle is less than 60 ° or more than 120 °, the strength in the plate surface direction is secured. Although it is possible, the strength in the direction perpendicular to them is lowered, that is, a tendency to displace in a specific direction is generated.

The first side wall 14 has a fixing portion 17 at the lower end, a reinforcing plate portion 18 from the lower end to the center in the height direction, and a deformation plate portion 19 at the upper portion of the reinforcing plate portion 18. It is set taller than the side wall.
The fixing portion 17 has a plate shape extending in a substantially horizontal direction from the lower end of the first side wall 14, and can be fixed to the upper surface of the fender apron 11 by spot welding.
The reinforcing plate portion 18 is a plate-like portion that extends from the lower end of the first side wall 14 to the substantially central portion in the height direction, and has reinforcing ribs 20 formed in the vertical direction at substantially the center in the width direction. However, it is configured so that it is difficult to compress and deform even when a high load is applied. One side end of the reinforcing plate portion 18 is provided with a strip-like connecting plate 21 extending in the horizontal direction, and the first side wall 14 and the second side wall 15 are connected to each other, thereby improving the stability of the three-dimensional shape. It can be improved.
The deformable plate portion 19 is a portion extending from a substantially central portion in the height direction of the first side wall 14 to the upper end, and is configured to easily compress and deform when a high load of a predetermined value or more is applied.

  A substantially rectangular hole 22 penetrating the front and back of the deformable plate portion 19 is formed at the substantially central portion of the plate surface of the deformable plate portion 19 in the first side wall 14 so as to leave the deformable plate portion 19 in a frame shape. Therefore, it is easy to compress and deform. In this way, an outward-facing bead 23 that is curved outwardly in the horizontal direction is formed at approximately the center in the height direction of the left and right portions of the deformation plate portion 19 formed in a frame shape. The outward bead 23 portion is displaced outwardly, and the deformable plate portion 19 is deformed so as to be folded in two so as to be crushed.

The second side wall 15 includes two fixing portions 24 and 25 that are substantially perpendicular to each other at the lower end, a reinforcing plate portion 26 that extends from the lower end to the center in the height direction, and an upper portion of the reinforcing plate portion 26. Comprises a deformable plate portion 27.
The fixing portions 24 and 25 fix a vertical fixing portion 24 extending in a vertically downward direction from the second side wall 15 and a plate formed in a substantially L-shaped longitudinal section to the reinforcing plate portion 26 of the second side wall. Thus, it is composed of a horizontal fixing portion 25 protruding in the horizontal direction. The vertical fixing portion 24 and the horizontal fixing portion 25 can be fixed to the outer surface and the upper surface of the radiator support 13 by spot welding, respectively.
The reinforcing plate portion 26 is a plate-like portion that extends from the lower end of the second side wall 15 to a substantially central portion in the height direction. The plate surface of the second side wall 15, the L-shaped plate, The connecting plate 21 extending from the side wall 14 is sequentially laminated and fixed to each other so that it is difficult to compress and deform even when a high load is applied. The height position of the upper end of the reinforcing plate portion 26 of the second side wall 15 is defined by the height position of the upper end of the connecting plate 21 and is substantially equal to the height position of the upper end of the reinforcing plate portion 18 of the first side wall 14. Is set to be
The deformable plate portion 27 is a portion extending from substantially the center in the height direction of the second side wall 15 to the upper end, and is configured to easily compress and deform when a high load of a predetermined value or more is applied.

  In a substantially central portion of the plate surface of the deformable plate portion 27 in the second side wall 15, a substantially rectangular hole 28 formed through the front and back of the deformable plate portion 27 so as to leave the deformable plate portion 27 in a frame shape. Are formed so that they can be easily compressed and deformed. Inwardly bent beads 29 that are curved inward in the horizontal direction are formed at substantially the center in the height direction of the left and right portions of the deformed plate portion 27 formed in a frame shape in this way. The inward bead 29 portion is displaced inwardly, and the deformable plate portion 27 is deformed so as to be folded in two so as to be crushed. At the time of the crushing, the size of the hole 28 and the plate surface directions of the first side wall 14 and the second side wall 15 are appropriately set so that the top plate 16 is displaced in the vertical direction without being displaced substantially in the front, rear, left and right directions. It is preferable to do.

  The top plate 16 has a substantially rectangular plane, and a bolt mounting hole 30 is drilled at a substantially central portion of the plate surface so as to be parallel to the inclination of the plate surface of the horizontal portion 9 of the front fender panel 3. The plate surface is set to a predetermined inclination angle.

  As shown in FIG. 4, the support member 4 configured as described above is disposed so as to be interposed between the front end of the front fender panel 3 and the front corner portion of the vehicle body skeleton member 5 positioned vertically below the front fender panel 3. The vehicle body skeleton member 5 constituting the corner portion 31 is a connecting portion between the front of the fender apron 11 that reinforces the vehicle side portion and the side of the radiator support 13 that reinforces the vehicle front portion, and is abbreviated in plan view. It is a bent part.

  For example, when the support member 4 of this embodiment is used, the fixing portion 17 of the first side wall 14 is fixed to the upper surface of the fender apron 11 by spot welding at the corner position, and the second side wall is vertically The fixing portion 24 and the horizontal fixing portion 25 are fixed to the side surface and the upper surface of the radiator support 13 by spot welding, respectively. However, in FIG. 4, spot welding locations are indicated by x marks. Then, the top plate 16 of the support member 4 is brought into contact with the lower surface of the horizontal portion 9 of the front fender panel 3, and the bolt mounting hole 32 drilled in the front end of the front fender panel 3 and the top plate 16 are drilled. The bolts 33 are screwed together with the bolt mounting holes 30 to fix the front fender panel 3 and the support member 4 to each other. Thus, the support member 4 can be stably attached to the corner portion 31 that is a connecting portion of the vehicle body skeleton member 5 that could not be stably attached by the conventional raising bracket.

  When a high load of a predetermined value or more in the vertical direction is applied to the support member 4 configured in this way, the support member 4 is compressed and deformed as shown in FIG. 6, for example. As can be seen from this figure, the first side wall 14 and the second side wall 15 are hardly deformed in the portions below the reinforcing plate portions 18 and 26, and the top plate 16 and the deformed plate portions 19 and 27 are deformed. In particular, the support member 4 is crushed in the vertical direction by collapsing in the height direction so that the deformable plate portions 19 and 27 are folded in half.

  This is because the height difference between the first side wall 14 and the second side wall 15 is different in advance in order to cope with the difference in height between the fender apron 11 and the radiator support 13 and the complexity of the upper surface shape of the vehicle body skeleton member 5. This is because the heights of the deformable plate portions 19 and 27 are made substantially equal to each other so that the displacement tendency and the rotation tendency of the top plate 16 in the front-rear and left-right directions during crushing are reduced. That is, since there is no bias or wrinkle of the displacement of the top plate 16 when the support member 4 is crushed, even if the front fender panel 3 is displaced downward while being displaced in the front-rear and left-right directions, the top plate 16 is deformed in synchronization with the displacement direction. Thus, there is no hindrance to compressive deformation due to the difference in displacement tendency between the top plate 16 and the front fender panel 3, and therefore the shock absorption can be improved.

  In this way, by compressing and deforming when a load of a predetermined value or more is applied in a substantially vertical direction, a clearance is secured between the front fender panel 3 and the vehicle body skeleton member 5 supporting the same, While the front end of the front fender panel 3 is supported on the front side portion of the vehicle body skeleton member 5, when a pedestrian head collides with the bonnet 6 or the front fender panel 3, the impact damage can be highly mitigated. It is like that.

  As described above, the fender support structure 1 of the present invention can be fixed to the corner portion 31 of the vehicle body skeleton member 5 which is a connecting portion between the fender apron 11 and the radiator support 13, and the front fender panel 3 can be stabilized. It can be supported and can be compressed and deformed to absorb an impact when a high load of a predetermined value or more is applied, and various forms are possible without departing from the gist of the invention. Can be implemented.

It is a perspective view of the fender support structure periphery of this embodiment, and shows the vehicle left front side part. It is AA sectional drawing in FIG. It is sectional drawing of the vehicle left side seen from the vehicle front side which shows the fender support structure of this embodiment, and shows the BB cross section in FIG. It is a plane perspective view of the fender support structure in FIG. It is a perspective view of the support member of this embodiment. It is a perspective view which shows the compression deformation state of the supporting member of FIG. It is sectional drawing seen from the vehicle front which shows the attachment structure of the conventional raising / lowering type raising bracket. It is a perspective perspective view which shows the structure of the raising bracket of FIG. It is sectional drawing seen from the vehicle front which shows the attachment structure of the conventional left-right type raising bracket. It is a perspective perspective view which shows the structure of the raising bracket of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Fender support structure 2 Engine room 3 Front fender panel 4 Support member 5 Car body frame | skeleton member 6 Bonnet 7 Curved part 8 Inner side wall part 9 Horizontal part 10 Reinforcement plate 11 Fender apron 12 Frame part 13 Radiator support 14 First side wall 15 2nd Side wall 16 Top plate 17 Fixing portion 18 Strengthening plate portion 19 Deformation plate portion 20 Reinforcing rib 21 Connecting plate 22 Hole 23 Outward bead 24 Vertical fixing portion 25 Horizontal fixing portion 26 Reinforcement plate portion 27 Deformation plate portion 28 Hole 29 Inward Bead 30 Bolt mounting hole 31 Corner portion 32 Bolt mounting hole 33 Bolt 101 Fender support structure 103 Fender panel 104 Raised bracket 105 Car body frame member 106 Bonnet 110 Reinforcement plate 114 Side wall 115 Side wall 116 Top plate 123 Folding ridge line 129 Folding ridge line 130 Vol Mounting holes 132 bolt mounting hole 133 fender mounting bolts 201 fender support structure 203 fender panel 204 raised bracket 205 vehicle body frame member 206 hood 210 reinforcing plate 214 side wall 215 side wall 216 top plate 230 bolt mounting holes 232 bolt mounting hole 233 fender mounting bolts

Claims (5)

A fender support structure including a support member for supporting a fender panel on a vehicle body skeleton member,
2. The fender support structure according to claim 1, wherein the support member is formed by connecting two side walls erected with different plate surface directions in the vehicle horizontal direction via a top plate.   The fender support structure according to claim 1, wherein the plate surface directions of the two side walls are substantially perpendicular to each other in the vehicle horizontal direction.   The fender support structure according to claim 1 or 2, wherein the two side walls include a first side wall having an outward bead and a second side wall having an inward bead. .   The fender support structure according to any one of claims 1 to 3, wherein the two side walls are connected to each other via a connecting member at a lower part.   2. The vehicle according to claim 1, wherein the one side wall is disposed on a vehicle body skeleton member at a front portion of the vehicle body side portion, and the other side wall is disposed on a vehicle body skeleton member at a front portion side portion of the vehicle body. 5. The fender support structure according to any one of 4 above.

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