JP5320005B2 - Fender panel mounting bracket - Google Patents

Description

  The present invention relates to a fender panel mounting bracket that is interposed between a vehicle body skeleton and a fender panel and absorbs shock by deformation when a pedestrian's head or the like collides.

  Conventionally, in a vehicle body such as an automobile, between a fender panel and a vehicle body skeleton such as a side upper frame for the purpose of improving shock absorption performance when a pedestrian's head collides with a fender from above. There have been many proposals with brackets.

For example, as disclosed in Patent Document 1, this type of bracket generally includes a fender mounting portion to which a fender panel is fixed, a leg portion that is connected to both ends of the fender mounting portion, and a leg portion that is mounted on the vehicle body. It has a vehicle body mounting portion that is fixed to the skeleton, and in the event of a collision, shock absorption is performed mainly by deforming the leg portion.
JP 2008-137540 A

  By the way, as described above, when a fender panel is supported with a bracket interposed between the vehicle body skeleton and the support rigidity (practical rigidity) generally decreases. Therefore, the legs of the bracket, etc. require a minimum material strength to ensure the support rigidity of the fender panel. Depending on the vehicle body structure, etc., ensuring the support rigidity in the normal state and absorbing the shock at the time of collision There was a limit to achieving a high level of performance improvement.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a fender panel mounting bracket capable of ensuring both support rigidity during normal operation and improving shock absorption performance during a collision. .

A fender panel mounting bracket according to an aspect of the present invention includes a fender mounting portion to which a fender panel is fixed, a pair of legs that respectively support each end of the fender mounting portion at a position spaced from a vehicle body skeleton, A bracket main body having a pair of vehicle body mounting portions for fixing the lower end portions of the leg portions to the vehicle body skeleton, a stiffening plate fitted to a side portion of the bracket main body, and a lower end portion of the stiffening plate A stiffening member having a vehicle body mounting portion fixed to the vehicle body skeleton, and the stiffening plate is fitted so that the bracket main body and the bracket main body can be separated by bending of the stiffening plate. It is.

  According to the fender panel mounting bracket of the present invention, it is possible to achieve both the support rigidity during normal operation and the improvement of shock absorbing performance during a collision.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The drawings relate to an embodiment of the present invention, FIG. 1 is a perspective view showing the main part of the left front part of the vehicle body, FIG. 2 is a plan view showing the main part of the front part of the vehicle body, and FIG. 4 is an exploded perspective view showing a main part of a fender panel mounting bracket that also serves as a hood mounting hinge, FIG. 5 is a cross-sectional view of a main part taken along line V-V in FIG. 2 is a cross-sectional view of the main part taken along the line VI-VI in FIG. 2, FIG. 7 is an explanatory view showing the crushing operation of the fender mounting bracket at the time of head collision, and FIGS. FIG. 11 is a perspective view showing a principal part of a modification of the stiffening plate, and FIG. 12 is an exploded perspective view showing a principal part of a modification of the fender mounting bracket.

  1 and 2, reference numeral 1 indicates a vehicle body constituting the vehicle. Front side frames 2 extending in the front-rear direction are disposed on both sides of the front portion of the vehicle body 1 in the vehicle width direction, and left and right sides of the radiator panel 5 are connected to front ends of the front side frames 2. The radiator panel 5 includes a radiator lower frame 6, a radiator upper frame 7 disposed substantially in parallel above the radiator lower frame 6, and a pair of left and right radiator side frames that connect both ends of both frames 6, 7. 8. Further, extending portions 9 that extend obliquely rearward in the vehicle width direction are integrally formed at both ends of the radiator upper frame 7, and a headlamp mounting portion 10 is formed below these extending portions 9. Further, a front end portion of a side upper frame 11 extending in the front-rear direction of the vehicle body 1 is connected to an end portion of each extension portion 9 on the outer side in the vehicle body direction.

  Each of the left and right side upper frames 11 has a function as a vehicle body skeleton that supports the upper portion of the fender panel 55, and each of the side upper frames 11 is, for example, a bracket 20 fixed at three positions on the front and rear. The left and right fender panels 55 are supported via As shown in FIGS. 1 and 2, in the present embodiment, each bracket 20 includes, for example, a front end portion of the side upper frame 11, a substantially central portion and a rear portion of the side upper frame 11, and a front portion of the front strut tower 12. It is each arrange | positioned in the back predetermined position.

  Here, as shown in FIGS. 5 and 6, the fender panel 55 is bent from the outer vertical wall portion 56 constituting the design surface of the vehicle side portion and the upper end portion of the outer vertical wall portion 56 and extends downward. And a flange portion 58 that is bent from the lower end portion of the inner vertical wall portion 57 and extends inward in the vehicle width direction (engine room side). The flange portion 58 is disposed to face the upper surface of the side upper frame 11 and is supported above the side upper frame 11 via the brackets 20.

  More specifically, as shown in FIGS. 3 and 5, the bracket 20 includes, for example, a bracket body 21 that is bent in a substantially hat shape when viewed from the side, and a supplement that stiffens one side of the bracket body 21. And a rigid member 22.

  The bracket body 21 is, for example, a pair of fender mounting portions 25 to which the flange portion 58 of the fender panel 55 is fixed, and a pair of ends of the fender mounting portions 25 that are supported at upper positions separated from the upper surface of the side upper frame 11. The leg portions 26 and a pair of vehicle body mounting portions 27 for fixing the lower end portions of the leg portions 26 to the side upper frame 11 are bent and formed by a single sheet metal member having a strip shape. Has been.

  The fender mounting portion 25 has, for example, a top surface having a substantially rectangular shape in plan view disposed substantially parallel to the side upper frame 11, and a bolt insertion hole 25a is formed in the center portion thereof. Further, a weld nut 25b is welded to the rear surface side of the fender mounting portion 25 at a position corresponding to the bolt insertion hole 25a. On the other hand, for example, as shown in FIGS. 3 to 6, a bolt insertion hole 58 a corresponding to the bolt insertion hole 25 a is formed in the flange portion 58 of the fender panel 55. And the flange part 58 is mounted in the top surface of the fender attachment part 25, and the bolt 35 which penetrates both bolt insertion holes 58a and 25a is screwed by the weld nut 25b, thereby the fender attachment part 25 has a fender panel. 55 flange portions 58 are fixed.

  Each leg portion 26 extends downward from the front and rear end portions of the fender attachment portion 25. A bent portion 26a is formed in the middle of these leg portions 26, and a lower portion of the bent portion 26a extends downward with a larger depression angle than the upper portion. Thereby, each leg 26 can be deformed starting from the bent portion 26a when an impact from above the fender panel 55 or the like is input.

  As shown in FIGS. 1, 3, and 4, each vehicle body attachment portion 27 is configured by a substantially rectangular member in plan view in which a bolt insertion hole 27 a is formed in a substantially central portion. The leg portion 26 is bent from the lower end portion and extends in the longitudinal direction of the vehicle body. On the other hand, for example, as shown in FIGS. 3 and 4, a bolt insertion hole 11 a corresponding to the bolt insertion hole 27 a is formed in the upper surface of the side upper frame 11. Further, a weld nut 11b is welded to the inner surface of the side upper frame 11 at a position corresponding to the bolt insertion hole 11a. Then, each vehicle body mounting portion 27 is placed on the upper surface of the side upper frame 11, and the bolts 36 penetrating both the bolt insertion holes 27a and 11a are screwed into the weld nut 11b, whereby the bracket body 21 is attached to the side upper frame. 11 is fixed.

  The stiffening member 22 includes a stiffening plate 30 disposed on one side of the bracket body 21 and a vehicle body mounting portion 31 for fixing the lower end portion of the stiffening plate 30 to the side upper frame 11 by a sheet metal member. The main part is formed by bending.

The stiffening plate 30 is disposed, for example, on the inner side of the bracket body 21 in the vehicle width direction. The main part of the stiffening plate 30 is constituted by, for example, a substantially hexagonal flat plate member that closes the side opening of the bracket body 21 along the side end surfaces of the fender mounting portion 25 and the leg portion 26.

  On the outer surface of the stiffening plate 30 in the vehicle width direction, a fitting protrusion 32 that fits into the inner surface of the bracket body 21 is provided. As shown in FIGS. 3 and 4, in this embodiment, the fitting protrusion 32 is made up of, for example, an elongated sheet metal member bent along the inner surfaces of the fender mounting portion 25 and the leg portion 26 by welding or the like. It is formed by being fixed to the outer surface of the rigid plate 30. Then, the stiffening plate 30 is fitted to the bracket body 21 via the fitting protrusion 32, thereby forming a closed cross section (combined box structure) on the inner side in the vehicle width direction of the bracket body 21.

  In addition, a protrusion 33 protruding above the fender mounting portion 25 of the bracket body 21 is provided on the upper portion of the stiffening plate 30. In the present embodiment, the protrusion 33 is formed integrally with the stiffening plate 30, and the tip thereof faces the edge of the engine hood 50.

  For example, as shown in FIGS. 3 to 6, the vehicle body attachment portion 31 is configured by a substantially rectangular member in plan view in which a pair of front and rear bolt insertion holes 31 a are formed, and is bent from the lower end portion of the stiffening plate 30. And extended outward in the vehicle width direction. On the other hand, for example, as shown in FIGS. 3 and 4, a bolt insertion hole 11 c corresponding to the bolt insertion hole 31 a is formed in the upper surface of the side upper frame 11. Further, a weld nut 11d is welded to the inner surface of the side upper frame 11 at a position corresponding to the bolt insertion hole 11c. Then, the vehicle body attachment portion 31 is placed on the upper surface of the side upper frame 11, and the bolt 37 that penetrates both the bolt insertion holes 31a and 11c is screwed into the weld nut 11d, whereby the stiffening member 22 is attached to the side upper frame. 11 is fixed.

  Here, in the present embodiment, as shown in FIGS. 1, 2, 4 and 6, the bracket 20 located at the rearmost portion of the brackets 20 fixed on the side upper frames 11 is provided with the engine hood 50. The hinge base of the supporting hood hinge 51 is also used. For this reason, a pin insertion hole 30 a for pivotally supporting the hinge arm 52 is formed in a substantially central portion of the stiffening plate 30.

  Here, on the base side (fixed end side) of the hinge arm 52, a pin insertion hole 52a corresponding to the pin insertion hole 30a is formed. The hinge arm 52 is pivotally supported by the stiffening plate 30 via a hinge pin 38 that passes through both pin insertion holes 52a and 30a. On the other hand, a plurality of (for example, three) bolt insertion holes 52b are formed on the distal end side (free end side) of the hinge arm 52. Bolt insertion holes 53a corresponding to the respective bolt insertion holes 52b are formed in the inner panel 53 of the engine hood 50. Further, a weld nut 53b is formed on the inner surface of the inner panel 53 at a position corresponding to the bolt insertion holes 53a. Is welded. The engine hood 50 is connected to the free end side of the hinge arm 52 by screwing the bolt 39 passing through both the bolt insertion holes 52b and 53a into the weld nut 53b.

  In such a configuration, for example, when the pedestrian's head 100 collides with a fender or the like from above, the upper part of the fender panel 55 is deformed downward and the edge of the engine hood 50 as shown in FIG. The part moves downward while deforming. The impact input to the fender panel 55 and the engine hood 50 is transmitted to the bracket 20, and the bracket main body 21 and the stiffening member 22 are bent by the impact, so that the fitting state by the fitting protrusion 32 is released. The bracket body 21 and the stiffening member 22 are separated into individual rigid members. At this time, since the projecting portion 33 of the stiffening member 22 faces the engine hood 50, the impact input to the engine hood 50 is transmitted to the stiffening member 22 at the initial stage of the collision, The stiffening member 22 is preferably separated. Then, the closed section is opened by separating the bracket main body 21 and the stiffening member 22, so that the rigidity of the bracket 20 as a whole is lowered, and the bracket main body 21 and the stiffening member 22 are easily deformed (FIG. 7). (See (b)). These deformations realize suitable shock absorption.

  According to such an embodiment, the fender mounting portion 25 to which the fender panel 55 is fixed, and the pair of leg portions 26 that respectively support the end portions of the fender mounting portion 25 at positions separated from the side upper frame 11. The bracket body 21 provided is fixed to the side upper frame 11, and the stiffening member 22 including the stiffening plate 30 fitted to the side portion of the bracket body 21 is fixed to the side upper frame 11 separately from the bracket body 21. By installing the bracket body 21 and the stiffening member 22 to form the bracket 20 having a closed cross section (combined box structure), it is possible to ensure normal support rigidity and shock absorption performance at the time of collision. It is possible to achieve both improvement.

  That is, by configuring the bracket 20 by fitting the bracket body 21 and the stiffening member 22, a desired support rigidity can be realized using the bracket body 21 and the stiffening member 22 having a low material strength, By separating them at the time of a collision, a suitable shock absorbing performance can be realized.

  In this case, a protrusion 33 projecting upward from the fender mounting portion 25 of the bracket body 21 is provided on the stiffening plate 30 so that an impact from the engine hood 50 or the like can be input through the protrusion 33 during a collision. Thus, even when the bracket body 21 and the stiffening member 22 are fitted with a strong fitting strength, they can be accurately separated at the time of collision. Accordingly, the bracket main body 21 and the stiffening member 22 can be fitted in a strong fitting state, and the fitting state is accurately maintained even with respect to an impact when the engine hood 50 is opened and closed, a roll during traveling of the vehicle, and the like. can do.

  Further, if the stiffening member 22 is also used as the hinge base of the hood hinge 51, it is not necessary to dispose a separate bracket and hood hinge at a close position on the side upper frame 11, and the impact absorbing performance at this portion is improved. can do.

  Here, in the above-described embodiment, an example in which the protruding portion 33 that projects flush with the stiffening plate 30 has been described. For example, as illustrated in FIG. Alternatively, it is possible to face the engine hood 50 in an inclined state (outside indicated by a broken line in the drawing). If comprised in this way, it will become possible to set the direction in which the stiffening board 30 deform | transforms by the impact transmitted from the engine hood 50 grade | etc., To arbitrary directions inside or the vehicle width direction.

  Moreover, in the above-mentioned embodiment, although the example which comprised the stiffening board 30 with the flat member was demonstrated, for example, as shown in FIG. 9, a part of stiffening board 30 is bent and formed in a crank shape. Alternatively, as shown in FIG. 10, a part of the stiffening plate 30 can be bent into a substantially “<” shape. If formed in this manner, depending on the layout of the bracket 20 and the engine hood 50, etc., the bracket body 21 and the stiffening member 22 can be suitably separated at the time of collision even in a configuration in which the protrusion 33 is omitted. Become.

  In the above-described embodiment, an example in which the protrusion 32 for fitting is formed on the stiffening plate 30 with a separate sheet metal member has been described. For example, as shown in FIG. 11, the edge portion of the stiffening plate 30 is folded. It is also possible to form the fitting protrusion 32 by bending.

  For example, as shown in FIG. 12, it is also possible to form a fitting projection 40 that fits with the outer peripheral surface of the stiffening plate 30 on the bracket body 21 side instead of the stiffening member 22 side.

The perspective view which shows the principal part of the vehicle body left front part Plan view showing the main part of the front of the car body Exploded perspective view showing the main parts of the fender panel mounting bracket Exploded perspective view showing the main part of a fender panel mounting bracket that also serves as a hood mounting hinge Main part sectional drawing which follows the VV line of FIG. Sectional view along the line VI-VI in FIG. Explanatory drawing which shows crushing operation of the fender mounting bracket at the time of head collision Cross-sectional view of the main part showing a modification of the stiffening plate Cross-sectional view of the main part showing a modification of the stiffening plate Cross-sectional view of the main part showing a modification of the stiffening plate The perspective view which shows the principal part of the modification of a stiffening board Exploded perspective view showing the main part of a variation of the fender mounting bracket

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Vehicle body 2 ... Front side frame 5 ... Radiator panel 6 ... Radiator lower frame 7 ... Radiator upper frame 8 ... Radiator side frame 9 ... Extension part 10 ... Headlamp attachment part 11 ... Side upper frame 11a ... Bolt insertion hole 11b ... Weld nut 11c ... Bolt insertion hole 11d ... Weld nut 12 ... Front strut tower 20 ... Bracket 21 ... Bracket body 22 ... Stiffening member 25 ... Fender mounting part 25a ... Bolt insertion hole 25b ... Weld nut 26 ... Leg part 26a ... Bending Part 27 ... Car body attachment part 27a ... Bolt insertion hole 30 ... Stiffening plate 30a ... Pin insertion hole 31 ... Car body attachment part 31a ... Bolt insertion hole 32 ... Projection for fitting 33 ... Projection part 35 ... Bolt 36 ... Bolt 3 ... Bolt 38 ... Hinge pin 39 ... Bolt 40 ... Projection for fitting 50 ... Engine hood 51 ... Hood hinge 52 ... Hinge arm 52a ... Pin insertion hole 52b ... Bolt insertion hole 53 ... Inner panel 53a ... Bolt insertion hole 53b ... Weld nut 55 ... Fender panel 56… Outer vertical wall 57… Inner vertical wall 58… Flange 58a… Bolt insertion hole 100… Head

Claims (3)

A fender mounting portion to which a fender panel is fixed, a pair of leg portions for supporting each end portion of the fender mounting portion at a position separated from the vehicle body skeleton, and a lower end portion of each leg portion are fixed to the vehicle skeleton. A bracket body having a pair of vehicle body mounting portions to
A stiffening member having a stiffening plate fitted to a side portion of the bracket body, and a vehicle body mounting portion for fixing a lower end portion of the stiffening plate to the vehicle body skeleton ,
The fender panel mounting bracket , wherein the stiffening plate is fitted so that the bracket main body and the bracket main body can be separated by bending of the stiffening plate .   The fender panel mounting bracket according to claim 1, wherein the stiffening member has a protrusion protruding upward from the fender mounting portion.   The fender panel mounting bracket according to claim 1 or 2, wherein the stiffening plate also serves as a hinge base of a hood hinge that supports an engine hood on an inner side in the vehicle width direction of the fender panel.

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