JP3921020B2 - Hinge mounting structure of opening / closing body - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a hinge mounting portion structure of an opening / closing body in a vehicle such as an automobile.
[0002]
[Prior art]
FIG. 12 is a perspective view showing a front portion of an automobile, and an engine hood 1 of the automobile is composed of a hood outer panel 2 constituting a part of the vehicle outer shape and a hood inner panel 3 connected to the hood outer panel 2 by hemming connection. It is supported on the vehicle body side through a hood hinge attached to the lower surface of the hood inner panel 3 so as to be freely opened and closed. Thus, the retainer 4 is used for attaching the hood hinge to the hood inner panel 3 in order to reinforce the hinge attaching portion and increase its durability and rigidity.
[0003]
An example of a conventional engine hood hinge mounting structure is shown in FIGS. 8 and 9. FIG. 8 is a plan view of the rear side of the hood inner panel with the hood outer panel of the engine hood removed, FIG. FIG. 9 is a IX-IX direction arrow view of FIG. 8 shown with a hood outer panel attached.
[0004]
That is, the retainer 4 is disposed on the vehicle rear side of the hood inner panel 3 in the engine hood 1 so as to be positioned on the upper surfaces on both the left and right sides in the vehicle width direction. Thus, the retainer 4 has a flat bottom portion at the center thereof, a side edge portion provided as an inclined member so as to protrude upward at the outer peripheral edge portion of the bottom portion, and a flange formed at the upper end of the side edge portion. And is formed in a substantially tray shape as a whole.
[0005]
The hood inner panel 3 is disposed on a hood hinge 5 pivotally attached to the vehicle main body so as to be rotatable in the vertical direction. The retainer 4 and the hood hinge 5 are nuts fixed to the upper surface of the bolt 6 and the retainer 4. 7 is integrally fastened and fixed in a state of being overlapped via the hood inner panel 3. The retainer 4 is fixed to the hood inner panel 3 by spot welding 8 at a plurality of locations in the vehicle longitudinal direction and the width direction.
[0006]
Another example of a conventional engine hood hinge mounting structure is shown in FIGS. 10 and 11, and FIG. 10 is a plan view of the rear side of the vehicle of the hood inner panel shown with the hood outer panel of the engine hood removed. 11 is a XI-XI direction arrow view of FIG. 10 shown with the hood outer panel attached.
[0007]
In this example, a two-stepped portion 3a is formed in the vicinity of the vehicle rear side end portion of the hood inner panel 3 to reinforce the hood inner panel 3, and in the rear portion of the hood inner panel 3, A retainer 4 formed in a tray shape is disposed so as to be located on the upper surfaces on both the left and right sides in the vehicle width direction. Thus, two stepped portions 4a are provided at both ends of the retainer 4 at the bottom of the vehicle in the longitudinal direction so as to match the stepped portion 3a of the hood inner panel 3 on the rear side. In FIG. 11, 9 is a hinge arm attached to the vehicle main body, and the hinge arm 9 is pivotally supported so that the hood hinge 5 can rotate up and down.
[0008]
When the hinge mounting portion structure of the engine hood 1 is configured as shown in FIGS. 10 and 11, the durability and rigidity of the engine hood 1 can be improved compared to the hinge mounting portion structure of the engine hood shown in FIGS. 10 and 11, components having the same functions as those shown in FIGS. 8 and 9 are denoted by the same reference numerals.
[0009]
[Problems to be solved by the invention]
In the engine hood hinge mounting structure shown in FIGS. 8 and 9, when the vehicle travels on a rough road, an inertial force acts on the engine hood 1 in the vertical direction by an input from the road surface. . In particular, at the outer side in the vehicle width direction than the hood hinge 5, the movement of the hood outer panel 2 is supported through the hemming portion 10 (see FIG. 9). There is a possibility that the hood inner panel 3 may crack near the outside (near the position of the point P in FIG. 9).
[0010]
In addition, as a countermeasure against cracks in the hood inner panel 3, it is conceivable to increase the thickness of the hood inner panel 3. However, the weight of the engine hood 1 increases, resulting in an increase in cost and opening / closing of the engine hood 1. A large force is required for the operation, which is not preferable.
[0011]
In the case of the engine hood hinge mounting structure shown in FIGS. 10 and 11, as described above, the durability and rigidity are higher than the engine hood hinge mounting structure of FIGS. 8 and 9, and the hood hinge 5 of the hood inner panel 3. There is little possibility that the hood inner panel 3 will crack near the outside in the vehicle width direction.
[0012]
However, in the case of the engine hood hinge attachment structure shown in FIGS. 10 and 11, the length of the hood inner panel 3 in the vehicle front-rear direction is increased, so that the length L of the hinge arm 9 is also increased and the vehicle is downsized. In doing so, the shape of the hood inner panel 3 becomes complicated, which may increase the cost.
[0013]
In view of the above circumstances, the present invention provides a hinge mounting portion structure for an opening / closing body capable of reliably preventing cracks in an inner panel with a simple structure without incurring an increase in weight or cost. It was made for the purpose of doing.
[0014]
[Means for Solving the Problems]
The hinge mounting portion structure of the opening / closing body of the present invention includes a first retainer arranged to be fixed on the upper surface of the inner panel between the outer panel and the inner panel forming the opening / closing body, and a nut fixed on the upper surface. And a second retainer adapted to be fixed to the upper surface of the first retainer,
The first retainer includes an inclined member that is formed in an upward gradient toward the outer side in the vehicle width direction of the inner panel and that is welded in contact with an inclined surface of the inner panel that is formed in an upward gradient toward the outer side in the vehicle width direction,
The second retainer is configured to be able to adjust the position in the horizontal direction when the inner panel to which the first retainer is fixed is fastened to the hinge attached to the vehicle main body by a bolt and the nut. Is.
[0015]
In the present invention, even when the vehicle travels on a rough road and an inertial force acts on the opening / closing body in the vertical direction from the road surface, the inclined member of the first retainer is fixed to the inclined surface of the inner panel by welding. Therefore, the welded portion of the inclined surface supports the inertial force as a shearing force. As a result, the welded part can withstand a large inertial force, and the inner panel does not crack even in the vicinity of the outer side in the vehicle width direction of the hinge that is severe in strength.
[0016]
Further, since it is not necessary to increase the thickness of the inner panel, the weight of the opening / closing body does not increase, and therefore, the cost does not increase, and the opening / closing operation of the opening / closing body can be easily performed. Since the retainer has an inclined surface and is welded to the inner panel, it is difficult to adjust the front / rear and left / right of the first retainer and the inner panel to ensure the installation of the opening / closing body and the surrounding parts. Since the second retainer is used for attachment, the opening / closing body can be easily installed by adjusting the position of the second retainer relative to the first retainer.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described together with illustrated examples.
[0018]
1 to 4 show an example of an embodiment of a hinge attachment structure of an opening / closing body according to the present invention. FIG. 1 is a plan view of a hood inner panel on the vehicle rear side, with the hood outer panel removed, FIG. FIG. 3 is a view taken in the direction of arrows II-II in FIG. 1 with the hood outer panel attached, FIG. 3 is a view taken in the direction of arrows III-III in FIG. 1, and FIG. In the figure, the same reference numerals are given to the same functions as those shown in FIGS. 8 to 11 even if the shapes are slightly different.
[0019]
Thus, the basic configuration of the illustrated example is substantially the same as the conventional one shown in FIGS. 8 to 11, but the features of the illustrated example are as shown in FIGS. In order that the inclined member 4b is provided on a part of the outer peripheral edge of the retainer 4 and the hood inner panel 3 to which the retainer 4 is attached can be fastened and fixed to the hood hinge 5 by bolts 6, FIG. As shown in FIG. 4, another retainer 11 to which the nut 7 is fixed is provided.
[0020]
That is, the retainer 4 of the illustrated example is formed in a tray shape that is substantially the same shape as the retainer 4 shown in FIGS. 8 and 9, and the vehicle width direction outer edge of the retainer 4 on the vehicle rear side is outward in the vehicle width direction. An inclined member 4b that is formed in an upward gradient is provided. Thus, when the retainer 4 is positioned and fixed on the upper surface of the hood inner panel 3, the inclined member 4b is disposed at the outer side in the vehicle width direction at the outer end in the vehicle width direction of the hood inner panel 3, as shown in FIG. It can contact | abut to the upper surface side of the inclined surface 3b formed in the upward slope toward this.
[0021]
As shown in FIG. 1, the retainer 11 is formed in a substantially bowl shape that is long in the vehicle front-rear direction, and a nut 7 is fixed to the longitudinal front-rear end portion. Further, a small flange 11a for reinforcing the retainer 11 is provided upward at the edge of the retainer 11 in the vehicle width direction center side.
[0022]
Holes 11b, 4c, and 3c through which the bolts 6 are inserted are formed in the nut 7 fixing portion of the retainer 11, the retainer 4, and the hood inner panel 3 in order to fasten and fix the hood hinge 5 to the hood inner panel 3. ing. Thus, if the diameter of the hole 11b is D1, the diameter of the hole 4c is D2, and the diameter of the hole 3c is D3, D1 <D2 <D3.
[0023]
This is because the nut 7 is fixed when the hood inner panel 3 is fastened and fixed to the hood hinge 5 with the inclined member 4b of the retainer 4 in contact with the inclined surface 3b of the hood inner panel 3. The position of the retainer 11 in the horizontal direction can be adjusted so that the center of the nut 7 and the center of the mounting hole of the hood hinge 5 can be accurately matched, so that the hood hinge 5 of the engine hood 1 can be adjusted. This is so that the building can be easily installed.
[0024]
When the engine hood 1 is attached to the hood hinge 5, the hood inner panel 3, the retainer 4, and the retainer 11 are superposed, and the inclined member 4 b of the retainer 4 is brought into contact with the inclined surface 3 b of the hood inner panel 3. Bolts 6 are screwed into the nuts 7 from below the holes 5 through the holes of the hood hinge 5, the holes 3 c of the hood inner panel 3, the holes 4 c of the retainer 4, and the holes 11 b of the retainer 11. The engine hood 1 is attached to the hood hinge 5 by fastening and fixing the retainer 11 to the hood hinge 5 integrally.
[0025]
Further, the plane of the retainer 4 is fixed to the plane of the hood inner panel 3 by spot welding 8 at a plurality of locations in the vehicle front-rear direction and the vehicle width direction on the front side of the vehicle, and the inclined member 4b of the retainer 4 is At a plurality of locations in the front-rear direction, it is fixed to the inclined surface 3b of the hood inner panel 3 by spot welding 8a, and the retainer 11 and the retainer 4 are provided at intervals in the vehicle front-rear direction intermediate portion of the retainer 11, that is, in the vehicle front-rear direction. Between the nuts 7 and 7 being fixed, it is fixed to the plane of the hood inner panel 3 by spot welding 8b (see FIG. 1).
[0026]
Therefore, in the case of the hinge mounting portion structure of the engine hood 1 of the illustrated example, even if the vehicle travels on a rough road and an inertial force acts on the engine hood 1 from the road surface in the vertical direction, the retainer 4 is inclined. Since the inclined member 4b is fixed to the inclined surface 3b of the hood inner panel 3 by spot welding 8a, the spot welding 8a supports inertial force as shearing force. As a result, the spot weld 8a can withstand a large inertial force, and the hood inner panel 3 does not crack even in the vicinity of the outer side in the vehicle width direction of the hood hinge 5 that is severe in strength.
[0027]
Further, since it is not necessary to increase the thickness of the hood inner panel 3, the weight of the engine hood 1 is not bulky. Therefore, the cost is not increased and the opening / closing operation of the engine hood 1 can be easily performed.
[0028]
Further, since the length of the hood inner panel 3 in the vehicle front-rear direction is not increased, the length of the hinge arm 9 is not increased. As a result, the vehicle is not enlarged and the shape of the hood inner panel 3 is simple. Cost increase can be suppressed.
[0029]
Furthermore, when the hood inner panel 3 is attached to the hood hinge 5, the retainer 11 to which the nut 7 is fixed is attached, so that the positions of the retainer 4 and the retainer 11 are adjusted and welded. Therefore, the engine hood 1 can be easily installed.
[0030]
5 to 7 are other examples of the embodiment of the hinge mounting portion structure of the opening / closing body according to the present invention, and FIG. 5 is a plan view of the rear side of the vehicle of the hood inner panel shown with the hood outer panel removed. 6 is a view taken in the direction of the arrow VI-VI in FIG. 5 with the hood outer panel attached, and FIG. 7 is a view taken in the direction of the arrow VII-VII in FIG. Also in this example, components having the same functions as those shown in FIGS. 8 to 11 are denoted by the same reference numerals even if their shapes are slightly different.
[0031]
In the illustrated example, as shown in FIG. 6, the hood hinge 5 is bent slightly upward and downward so that the rear side of the vehicle is lowered in the middle of the vehicle longitudinal direction. At the mounting portion, the hood hinge 5 is bent and the retainer 4 is also bent along the hood inner panel 3.
[0032]
Further, as shown in FIG. 5, the hood inner panel 3 is formed with a narrow band-shaped reinforcing portion 3d that protrudes downward so as to surround the retainer 4 from four directions in plan view.
[0033]
By adopting such a configuration, even in this illustrated example, the same operational effects as those shown in FIGS. 1 to 4 can be obtained, and spot welding is not required, so that further cost reduction is possible. Become. Similarly to the previous embodiment, in this illustrated example, if the retainer 4 is provided with an inclined portion and this inclined portion is welded to the inclined portion of the inner panel, the effect can be further enhanced together with the reinforcing portion 3d.
[0034]
In the embodiment of the present invention, the case where the hinge mounting portion structure of the opening / closing body is applied to the engine hood has been described. However, the present invention can also be applied to a luggage door, the inclined member of the retainer and the hood inner panel. The inclined surface may be fixed by welding other than spot welding (for example, fillet welding of the upper end portion of the inclined member in the retainer to the inclined surface of the hood inner panel), and the scope not departing from the gist of the present invention. Of course, various changes can be made.
[0035]
【The invention's effect】
As described above, according to the hinge mounting portion structure of the opening / closing body of the present invention, the inner panel of the opening / closing body is reliably prevented from cracking with a simple structure without incurring an increase in weight or cost. In addition, various excellent effects such as easy installation of the opening / closing body can be achieved.
[Brief description of the drawings]
FIG. 1 is a plan view of a hood inner panel on the vehicle rear side, showing a state in which a hood outer panel is removed when the opening / closing body is an engine hood in an example of an embodiment of a hinge mounting portion structure of the opening / closing body of the present invention. is there.
FIG. 2 is a view taken in the direction of the arrow II-II in FIG. 1 with the hood outer panel attached.
FIG. 3 is a view taken in the direction of arrows III-III in FIG. 1 with the hood outer panel attached.
4 is an enlarged view of a portion IV in FIG. 3. FIG.
FIG. 5 is a plan view of the rear side of the vehicle of the hood inner panel in which the hood outer panel is removed when the opening / closing body is an engine hood in another example of the hinge mounting portion structure of the opening / closing body of the present invention. It is.
6 is a view taken in the direction of arrows VI-VI in FIG. 5 with the hood outer panel attached.
7 is a view taken in the direction of arrows VII-VII in FIG. 6 with the hood outer panel attached.
FIG. 8 is a plan view of a hood inner panel on the vehicle rear side, showing a state in which a hood outer panel is removed when the opening / closing body is an engine hood in an example of a hinge attachment structure of a conventional opening / closing body.
FIG. 9 is a view taken in the direction of arrows IX-IX in FIG. 8 with the hood outer panel attached.
FIG. 10 is a plan view of the rear side of the vehicle of the hood inner panel in a state where the hood outer panel is removed when the opening / closing body is an engine hood in another example of the hinge structure of the conventional opening / closing body.
11 is a view taken in the direction of arrows XI-XI in FIG. 10 with the outer panel attached.
FIG. 12 is a perspective view showing a front portion of the automobile.
[Explanation of symbols]
1 Engine hood (opening / closing body)
2 Hood outer panel (outer panel)
3 Hood inner panel (inner panel)
3b Inclined surface 4 Retainer 4b Inclined member 5 Hood hinge (hinge)
8a Spot welding (welding)

Claims (1)

A first retainer arranged to be fixed to the upper surface of the inner panel between the outer panel and the inner panel forming the opening / closing body, and a nut fixed to the upper surface and to the upper surface of the first retainer A second retainer adapted to be fixed,
The first retainer includes an inclined member that is formed in an upward gradient toward the outer side in the vehicle width direction of the inner panel and that is welded in contact with an inclined surface of the inner panel that is formed in an upward gradient toward the outer side in the vehicle width direction,
The second retainer is configured to be able to adjust the position in the horizontal direction when the inner panel to which the first retainer is fixed is fastened to the hinge attached to the vehicle main body by a bolt and the nut. A hinge mounting portion structure for an opening / closing body.

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