JP5018187B2 - Vehicle fender bracket structure - Google Patents

Description

  The present invention relates to a vehicle fender bracket structure for supporting a vehicle fender panel member, and in particular, to provide shock absorption by forming a space between a vehicle body apron member and a fender panel member. The present invention relates to a fender bracket structure for a vehicle.

  As a conventional vehicle fender bracket structure, for example, the one shown in FIGS. 6 to 8 is known (see, for example, Patent Document 1).

  In such a case, a front apron upper member member 3 as a vehicle body side panel member is provided at both side edges of the engine room 5 below the hood panel member 2 covering the engine room 5 provided at the front portion of the vehicle 1. A pair of left and right are provided.

  Among these, a horizontally bent portion 4a is integrally formed on the inner edge of the fender panel member 4 covering the side surface of the vehicle body.

  A plurality of front fender bracket members 6 are fixed to the upper surface portion 3a of the front apron upper member member 3 along the longitudinal direction of the front apron upper member member 3 at regular intervals. .

  Each of the front fender bracket members 6 has a substantially hat shape when viewed from the side, and is interposed between the bent portion 6 and the upper surface portion 3a of the front apron upper member member 3, and the bent portion. A space 7 is formed between the lower surface side of 6 and the lower surface side.

  As shown in FIG. 7, the front fender bracket member 6 has a bolt insertion hole 6b through which the bolt member 8 is inserted into the upper surface portion 6a and screwed into the nut member 9 provided on the back surface side of the upper surface portion 6a. An opening is formed.

  The front fender bracket member 6 has a pair of leg portions 6c and 6c extending from the left and right sides of the upper surface portion 6a.

  The lower surface portions 6d and 6d, which are bent and extended at substantially right angles, are integrally provided at the lower ends of the leg portions 6c and 6c, and the lower surface portions 6d and 6d are formed on the front apron upper. The member member 3 is fixed to the upper surface portion 3a by welding or the like.

  The leg portions 6c and 6c are formed with bent portions 6e and 6e, respectively, in the substantially central portion in the vertical direction to absorb the impact by bending with respect to the load input from above.

  Next, the effect of this conventional vehicle fender bracket structure will be described.

  In the conventional vehicle fender bracket structure configured as described above, the bolt member 8 is inserted into the insertion hole 4b formed in the bent portion 4a of the fender panel member 4 when the vehicle is assembled. The front apron upper member member 3 is screwed into a nut member 9 provided on the back surface side through a bolt insertion hole 6b formed in the upper surface portion 6a of each front fender bracket member 6 fixed to the upper surface portion 3a of the front apron upper member member 3. The

  Therefore, a constant space 7 is formed between the upper surface portion 3a of the front apron upper member member 3 and the bent portion 4a of the fender panel member 4, and the fender panel member 4 is connected to each front fender bracket. It is supported from below by the members 6.

Then, as shown by an arrow in FIG. 8, when an impact load A is applied from above the front fender bracket member 6 of the hood panel member 2 or the fender panel member 4, the leg portions 6c of the front fender bracket member 6 are Bending is started from the bent portions 6e and 6e formed in 6c, and the impact load A is absorbed, whereby the impact force is reduced.
Japanese Patent Publication No. 2002-178953

  However, in the conventional vehicle fender bracket structure, when the load input B or C such as a hand acts on the upper end portion or the side surface portion of the fender panel member 4, the bent portions 6e and 6e are easily bent. When started, the fender panel member 4 may be deformed.

  Therefore, an object of the present invention is to suppress deformation of the fender panel member for a load input less than a certain value such as a handle, and to cause a desired deformation when an impact load exceeding a certain value is input. Another object of the present invention is to provide a vehicle fender bracket structure that can absorb and mitigate impact loads.

In order to achieve the above object, the first aspect of the present invention includes a vehicle body side panel member positioned below a hood panel member of a vehicle and a fender panel member covering a side surface portion of the vehicle body. A fender bracket member that is interposed between a bent portion and a fender bracket member that joins while forming a space between the upper surface portion of the vehicle body side panel member and the lower surface side of the bent portion. In the fender bracket structure, the fender bracket member has a vertical side wall portion having a surface extending direction along the longitudinal direction of the vehicle, and a surface extending direction along the vehicle width direction orthogonal to the vertical side wall portion. And a front and rear wall portion having a substantially L shape in horizontal cross section of the fender bracket member by being provided integrally, and a load input from the fender panel member is constant on the front and rear wall portion. When it becomes more than value Irregular portion is provided we are to induce buckling, the irregular portion has an inner side facing the vehicle width direction inner side of the front and rear wall portion, the inner flat surface of the front rear wall portion which faces the vehicle front-rear direction It is characterized by a fender bracket structure of a vehicle that is configured by a curved shape that becomes concave toward the front.

  According to the first aspect of the present invention, when the load input from the fender panel member is less than a predetermined value, before and after exhibiting a substantially L shape in a horizontal sectional view formed in the fender bracket member. Since the wall portion exhibits desired rigidity and tries to maintain the shape, the fender panel member is not deformed.

  Further, buckling deformation is induced when the load input from the fender panel member becomes a certain value or more by the irregular portions formed in the front and rear wall portions.

  In the irregular portions of the front and rear wall portions, load input is absorbed by buckling deformation.

  For this reason, when the load input is less than a certain value, such as a handle, the deformation of the fender panel member is suppressed, and when an impact load greater than a certain value is input, such as climbing an obstacle, etc. In the case of the desired deformation, the impact load can be absorbed and relaxed, and an obstacle protection function can be exhibited.

  Hereinafter, a fender bracket structure for a vehicle according to a preferred embodiment of the present invention will be described with reference to the drawings. The same or equivalent parts as those in the conventional example will be described with the same reference numerals.

  1 to 5 show a fender bracket structure of a vehicle 11 according to an embodiment of the present invention.

  In the fender bracket structure of the vehicle 11 according to this embodiment, a front apron member 13 as a vehicle body side panel member is provided below the hood panel member 2 covering the engine room 5 provided at the front portion of the vehicle 11. A pair of left and right are provided along both side edges of the engine room 5.

  As shown in FIG. 1, the front apron member 13 is mainly bent at a substantially right angle by an outer ridge line 14 c and has a substantially L-shaped cross section, and the front apron upper member 14. The front apron lower member member 15 is also provided on the lower side of the member member 14 and is also bent in a substantially L shape.

  Then, the upper flange portion 15a and the lower flange portion 15b of the front apron lower member member 15 are joined to the inner side surface of the front apron upper member member 14 so as to exhibit a substantially rectangular cross section. ing.

  Among these, in the front apron lower member member 15, an upper flange portion 15 a formed by bending a ridge line is joined to an upper surface portion 14 a of the front apron upper member member 14.

  Due to this joining, an inner ridge line 14b having higher rigidity than the other parts is extended to the upper surface portion 14a in the vehicle front-rear direction along the ridge line of the front apron lower member member 15 so as to be close to the inner edge. It is comprised so that it may be located in.

  Front fender bracket members 16 as a plurality of fender bracket members are fixed to the upper surface portion 14a of the front apron upper member member 14 at regular intervals along the longitudinal direction of the front apron upper member member 14. Has been.

  The front fender bracket member 16 is provided between the horizontal mounting flange portion 12b of the bent portion 12a that is bent horizontally at the inner end portion of the fender panel member 12 and the upper surface portion 14a. By interposing, the fender panel member 12 is supported from below while forming a space 17 between the upper surface portion 14a of the front apron upper member member 14 and the lower surface side of the bent portion 16a. Are joined to the upper surface portion 14a.

  The front fender bracket member 16 has a surface extending direction along the longitudinal direction of the vehicle, a vertical side wall portion 16a inclined at a predetermined angle inward in the vehicle width direction, and orthogonal to the vertical side wall portion 16a. The front and rear wall portions 16b having a surface extending direction along the vehicle width direction are integrally provided.

  These vertical side wall portions 16a and front and rear wall portions 16b are configured such that the horizontal cross-sectional shape of the front fender bracket member 16 is substantially L-shaped.

  Among these, the front and rear wall portion 16b is provided with an irregular portion 16c that induces buckling deformation when the load input from the fender panel member 12 exceeds a certain value.

  The irregular portion 16c is mainly configured by making the inner side 16f of the front and rear wall portion 16b into a concave curved shape inside.

  In addition, an upper surface portion 16d that has a substantially square shape in the top view and is in contact with the lower surface side of the horizontal mounting flange portion 12b is integrally formed at each upper end edge of the vertical side wall portion 16a and the front and rear wall portions 16b. Is formed.

  The upper surface portion 16d is formed with a bolt insertion hole 16e formed at a substantially central portion so as to face the bolt insertion hole 12c formed in the horizontal mounting flange portion 12b.

  Further, a nut member 9 to which the male screw portion of the bolt member 8 is screwed is provided on the back surface side of the bolt insertion hole 16e.

  A convex bead portion 16j is formed on the vertical side wall portion 16a toward the outside in the vehicle width direction.

  Further, a joining flange portion 16g that is welded and fixed to the upper surface portion 14a of the front apron upper member member 14 is integrally formed at the lower end edges of the vertical side wall portion 16a and the front and rear wall portions 16b.

  And as shown to w1 and w2 in FIG. 2, the connection parts 16h and 16i which are the welding points of this joining flange part 16g are each formed adjacent to the said outer side ridgeline 14c and the inner side ridgeline 14b.

  Further, in this embodiment, as shown in FIG. 1, the vertical side wall portion 16a is inclined at a predetermined angle inward in the vehicle width direction, and more than the coupling portions 16h and 16i of the joining flange portion 16g. The position in the vehicle width direction of the upper surface portion 16d is configured to be located inside the vehicle.

  Next, the effect of the vehicle fender bracket structure of this embodiment will be described.

  First, the construction of the fender panel member 12 will be described. On the upper surface portion 16d of the front fender bracket members 16 ... fixed to the upper surface portion 14a of the front apron upper member member 14 at a predetermined interval. The horizontal mounting flange portion 12b of the fender panel member 12 is placed.

  The bolt members 8 are inserted from above through the bolt insertion holes 12c formed in the horizontal mounting flange portion 12b and the bolt insertion holes 16e formed in the upper surface portion 16d, and the male screw is inserted. Are screwed into nut members 9 provided on the back side of the bolt insertion holes 16e.

  At this time, in this embodiment, as shown in FIG. 1, the vertical side wall portion 16a is inclined inward in the vehicle width direction at a predetermined angle, and more than the coupling portions 16h and 16i of the joining flange portion 16g. Since the position in the vehicle width direction of the upper surface portion 16d is located on the inner side of the vehicle, a work space is secured in the upper part in the engine room 5, and the workability of screwing the bolt member 8 to the nut member 9 is good. .

  Further, coupling portions 16h and 16i, which are welding points of the joining flange portion 16g, are provided in proximity to the outer ridge line 14c and the inner ridge line 14b, respectively.

  Therefore, when the fender panel member 12 is installed, a load input applied from the fender panel member 12 to the upper surface portion 14a of the front apron upper member member 14 is transmitted from the coupling portions 16h and 16i to the outer ridge line 14c and There is little possibility of being deformed by being dispersed in the inner ridge line 14b.

  After installation, in this embodiment, when the load input from the fender panel member 12 is less than a certain value, the front and rear wall portions 16b formed in the front member 16 and having a substantially L shape in a horizontal cross section are formed. The fender panel member 12 is not deformed because the desired rigidity is exhibited and the shape is maintained.

  For this reason, as shown in FIG.1 and FIG.4, the shape of the said front fender bracket member 16 and the fender panel member 12 does not deform | transform according to the load input by a handle etc. FIG.

  Further, buckling deformation is induced when the load input A from the fender panel member 12 exceeds a certain value by the irregular portion 16c formed on the front and rear wall portions 16b.

  That is, when a load input A exceeding a certain value is applied, as shown in FIG. 5, buckling deformation is started by the irregular portion 16c of the front and rear wall portion 16b, and the fender is accompanied by this buckling deformation. The deformation stroke of the panel member 12 can be easily ensured, and these load inputs A are absorbed.

  For this reason, for a load input less than a certain value such as a handle, deformation of the fender panel member 12 is suppressed, and an impact load greater than a certain value such as climbing an obstacle or the like to the front of the vehicle is input. In this case, by deforming the fender panel member 12 with a sufficient deformation stroke, the impact load can be absorbed and reduced, and the reaction force to the obstacle can be reduced, thereby protecting the obstacle. Can be demonstrated.

  Furthermore, the irregular portion 16c of this embodiment is configured by making the inner side 16f of the front and rear wall portion 16b into a concave curved shape.

  For this reason, buckling deformation is easily caused when the load input A from the fender panel member 12 becomes equal to or greater than a certain value without being deformed with respect to a load input less than a certain value such as a hand. The induced irregular part 16c can be configured.

  Further, a bead portion 16j as shown in FIG. 2 is formed on the vertical side wall portion 16a.

  For this reason, the rigidity of the front fender bracket member 16 can be further improved, and deformation with respect to a load input of less than a certain value such as a hand can be suppressed.

  Furthermore, in this embodiment, coupling portions 16h and 16i, which are welding points of the joint flange portion 16g, are provided close to the outer ridge line 14c and the inner ridge line 14b, respectively.

  For this reason, the load input applied to the upper surface portion 14a of the front apron upper member member 14 may be distributed to the outer ridge line 14c and the inner ridge line 14b having relatively high rigidity, which may deform the upper surface portion 14a. Few.

  Therefore, the magnitude of the reaction force against the load input can be easily controlled by the fender bracket member 16 and the fender panel member 12.

  In this embodiment, the vertical side wall portion 16b is inclined at a predetermined angle inward in the vehicle width direction.

  For this reason, the buckling deformation centering on the irregular portion 16c shown in FIG. 5 can be induced with respect to the input of the impact load A from the upward direction and the impact load B from the obliquely upward direction.

  Therefore, the protection function of the obstacle that absorbs and relaxes the impact load can be further improved.

  Further, even when the parting line position between the fender panel member 12 and the hood panel member 2 is located on the inner side in the vehicle width in modeling the vehicle 11, the degree of freedom of vehicle body modeling can be improved.

  The embodiment of the present invention has been described in detail above with reference to the drawings. However, the specific configuration is not limited to this embodiment, and design changes that do not depart from the gist of the present invention are not limited to this embodiment. Included in the invention.

  That is, in the embodiment, the position of the front and rear wall portion 16b is formed on the front side in the vehicle front-rear direction in FIGS. 1 to 3 and on the rear side in the vehicle front-rear direction in FIGS. Although shown and described, it may be formed on at least one of the front side and the rear side.

  Moreover, in the said embodiment, although the convex bead part 16j is formed in the said vertical side wall part 16a toward the vehicle width direction outer side, it is not restricted to this in particular, For example, the said vertical wall part 16a Any shape or quantity may be used, such as one that does not form a bead portion, or a pair of bead portions that are juxtaposed in the longitudinal direction of the vehicle.

  Further, the vertical side wall portion 16a of the front fender bracket member 16 has a surface extending direction along the vehicle front-rear direction and is inclined at a predetermined angle inward in the vehicle width direction. Any vertical side wall 16a, such as the vertical side wall 16a which does not incline, or the vertical wall 16a which inclines at a large inclination angle, exhibits a substantially L-shape in a horizontal section view along with the front and rear wall 16b. If it is.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an enlarged cross-sectional view of a fender bracket structure for a vehicle according to an embodiment of the present invention, in the vicinity of a fender portion on the right side of a front portion of the vehicle, illustrating an overall configuration. It is a perspective view explaining a mode that a fender bracket member is being fixed to a front apron member member by the fender bracket structure of vehicles of an embodiment. It is a fender bracket structure of vehicles of an embodiment, and is a perspective view of a fender bracket member. It is a disassembled perspective view which shows a mode that a fender panel member is attached to the upper surface part of a fender bracket member by the fender bracket structure of the vehicle of embodiment. It is a perspective view explaining a mode that a fender panel member carries out buckling deformation by load input in a fender bracket structure of vehicles of an embodiment. It is a perspective view explaining the whole structure by the fender bracket structure of the vehicle of a prior art example. It is a fender bracket structure of vehicles of a conventional example, and is a perspective view of a fender bracket member. It is sectional drawing along the vehicle width direction of the fender part in the fender bracket structure of the vehicle of a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Vehicle 12 Fender panel member 14 Front apron upper member member 14a Upper surface part 14b Inner edge line 14c Outer edge line 16 Front fender bracket member (fender bracket member)
16a Vertical side wall portion 16b Front and rear wall portion 16c Irregular portion 16g Joint flange portion 16h, 16i Connection point 16j Bead portion

Claims (4)

An upper surface of the vehicle body side panel member interposed between a vehicle body side panel member positioned below the vehicle hood panel member and a horizontally bent portion of the fender panel member covering the vehicle body side surface portion. And a fender bracket structure of a vehicle having a fender bracket member that is coupled while forming a space between the lower portion side and the lower surface side of the bent portion,
The fender bracket member is integrally provided with a vertical side wall portion having a surface extending direction along the longitudinal direction of the vehicle and a surface extending direction along the vehicle width direction orthogonal to the vertical side wall portion. Thus, the front and rear wall portions of the fender bracket member having a substantially L-shape in a horizontal section view, and when the load input from the fender panel member becomes a predetermined value or more on the front and rear wall portions. , irregular portion is provided we are to induce buckling deformation,
The irregular portion is configured by forming an inner side facing the vehicle width direction inside of the front / rear wall portion into a curved shape that is concave toward the inside of the flat surface of the front / rear wall portion facing the vehicle front / rear direction. fender bracket structure for a vehicle, characterized in that is. 2. The vehicle fender bracket structure according to claim 1 , wherein a bead portion is formed on the vertical side wall portion . The apron upper member member or the apron upper member member is formed by joining the joining flange portion formed integrally with the lower portion of the fender bracket member and the upper surface portion of the apron upper member member constituting the vehicle body side panel member. The fender bracket structure for a vehicle according to claim 1, wherein the fender bracket structure is provided in the vicinity of a ridge line of an apron lower member member joined to the vehicle. The vehicle fender bracket structure according to any one of claims 1 to 3, wherein the vertical side wall portion is inclined at a predetermined angle inward in the vehicle width direction .

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