JP5279557B2 - Body front structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a front structure of a vehicle body in which a gap between an opening of a food and a cover member that covers the opening is made smaller, and rigidity around the opening is enhanced. <P>SOLUTION: The front structure of the vehicle body includes an outer opening 16a for venting provided on a skin 16 that constitutes a food covering the top of the vehicle front body in an openable/closable manner, and the outer opening 16a is closed by outlet decorative plates 13, 14 on which a plurality of holes are provided for venting. In the front structure of the vehicle body, an inner frame 18 attached inside of the skin 16 has an inner opening 18a that is provided inside the outer opening 16a. A rear stiffener 24 is provided between the skin 16 and the inner frame 18. The edge of the rear stiffener 24 (more specifically, a flange portion 24a) is bonded and fixed to the skin 16, and the inner opening 16a side portion of the rear stiffener 24 (more specifically, the edge 24C of a stiffener opening 24b) is fastened together with the inner frame 18 and the outlet decorative plates 13, 14. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to an improvement in a hood provided in front of a vehicle body front structure, particularly in a passenger compartment.

  As a conventional vehicle body front part structure, an engine hood provided with an opening is known (for example, see Patent Document 1).

1 and 3 of Patent Document 1 will be described with reference to FIGS. 10 and 11 below. In addition, the code | symbol was reassigned.
As shown in FIG. 10, the upper part of the engine room 101 provided at the front part of the vehicle 100 is covered with an engine hood 102, and the engine hood 102 has an opening 103 for exhausting heat from the engine room 101, A plate-like opening / closing member 104 that opens and closes the opening 103 is provided.
FIG. 11A shows a state where the opening / closing member 104 is closed, and FIG. 11B shows a state where the opening / closing member 104 is opened.

JP 2006-168631 A

  10 and 11, by providing the opening 103 in the engine hood 102, the rigidity of the periphery of the opening 103 of the engine hood 102 is reduced, which causes vibrations and lifting.

Moreover, what is shown in the following FIG.12 and FIG.13 is known as a structure which covers the opening part provided in the engine hood.
As shown in FIG. 12, openings 113, 114 are opened in the outer panel 111 and the inner panel 112 constituting the engine hood 110, respectively, and a cover member 116 is provided around the periphery of the opening 113 to cover the opening 113 of the outer panel 111. Are attached with a plurality of bolts 118.
When the ventilation hole 119 is provided in the cover member 116, the attachment portion 117 can be seen from the outside through the ventilation hole 119, so that the appearance is impaired.

  As shown in FIG. 13, openings 123 and 124 are opened in the outer panel 121 and the inner panel 122 constituting the engine hood 120, respectively, and a cover member 126 is provided around the periphery of the opening 124 to cover the opening 123 of the outer panel 121. The flange portion 127 is attached with a plurality of bolts 128 and nuts 129.

  Since the outer panel 121 is hemmed so that the edge is folded back from the front of the edge of the inner panel 122, the outer panel 121 and the inner panel 122 may be displaced during hemming. For this reason, it is necessary to ensure a large gap S1 between the opening 123 of the outer panel 121 and the cover member 126 attached to the inner panel 122 to prevent interference.

  An object of the present invention is to provide a vehicle body front structure that can further reduce the gap between the opening of the hood and the cover member that covers the opening and improve the rigidity around the opening.

According to the first aspect of the present invention, an outer opening for venting is formed in an outer panel that constitutes a hood that covers an upper portion of the front of the vehicle body so as to be openable and closable, and the outer opening is closed by a cover member that allows ventilation. In the partial structure, the inner panel attached to the inner side of the outer panel has an inner opening that is opened to the inner side of the outer opening, and the reinforcing plate provided between the outer panel and the inner panel is bonded and fixed to the outer panel on the peripheral side. The inner opening side is fastened together with the inner panel and the cover member, and the left and right rear portions of the hood are provided with hinge-side attachment portions for attaching the hood to hinges provided on the vehicle body side, and the vehicle width of these hinge-side attachment portions The left and right outer and inner openings are opened on the inner side in the direction, and the reinforcing plate is provided parallel to the rear edge of the hood to connect the opening reinforcing part surrounding the inner opening and the left and right opening reinforcing parts. A cross-section hat-shaped connecting portion, a cross-section hat-shaped rear recess is formed in the vehicle width direction at the rear portion of the inner panel, and the cross-section hat-shaped connection portion is a cross-section hat-shaped rear recess. A bottom wall that is formed in a shape along the bottom, extends forward and obliquely upward from the front end of the bottom wall, a front flange that extends forward from the front end of the front inclined wall, and a bottom wall A rear inclined wall extending obliquely upward from the rear end and a rear flange extending rearward from the rear end of the rear inclined wall, and the front flange and the rear flange are attached to the inner panel, thereby connecting the connecting portion and the inner panel. A closed cross section is constituted by the above.

Since the outer panel and the inner panel are connected by the reinforcing plate, the outer panel and the inner panel are prevented from being displaced when the outer panel and the inner panel are hemmed.
Therefore, the positional variation between the outer panel and the inner panel is suppressed, and the gap between the edge of the outer opening and the cover member can be further reduced. Further, the rigidity around the inner opening is increased by the reinforcing plate.

  The rigidity between the left and right hinge side mounting portions of the hood is increased by connecting the left and right opening reinforcing portions with the connecting portion. Furthermore, since the connecting portion has a hat shape in cross section, the rigidity of the connecting portion is increased, and the rigidity between the left and right hinge side mounting portions is further improved. As a result, the operational feeling when opening and closing the hood, the sound quality of the opening and closing sound, and the like are improved.

  In the invention according to claim 1, the inner panel attached to the inner side of the outer panel has an inner opening opened inside the outer opening, and the reinforcing plate provided between the outer panel and the inner panel has a peripheral side on the outer panel. Since the inner opening side is fastened together with the inner panel and the cover member, the gap between the outer opening and the cover member can be further reduced, and the appearance can be improved. Further, the rigidity around the inner opening of the inner panel can be increased, and the rigidity of the hood can be ensured.

In addition, in the invention according to claim 1 , hinge-side attachment portions for attaching the hood to hinges provided on the vehicle body side are provided on the left and right of the rear portion of the hood, and these hinge-side attachment portions are arranged on the inner side in the vehicle width direction. The left and right outer openings and inner openings are opened, and the reinforcing plate is connected to the opening reinforcing portion surrounding the inner opening, and a cross-sectional hat-like connection provided in parallel to the rear edge of the hood to connect the left and right opening reinforcing portions. Therefore, the rigidity between the left and right hinge side attachment portions of the hood can be further increased by the connecting portion having a hat-shaped cross section, and the feeling at the time of opening and closing the hood can be improved.

It is a perspective view (Example 1) of the hood which concerns on this invention. It is a perspective view (Example 1) which shows the state which removed the outer panel from the hood which concerns on this invention. FIG. 3 is a perspective view (Example 1) showing a main part of the hood shown in FIG. 2. FIG. 4 is a sectional view taken along line 4-4 of FIG. 3 (Example 1). It is a perspective view (Example 1) which shows the state which removed the outer panel and the outlet decorative board from the food | hood which concerns on invention. It is. FIG. 6 is a perspective view showing a main part of the hood shown in FIG. 5 (Example 1). FIG. 7 is a sectional view taken along line 7-7 in FIG. 6 (Example 1). FIG. 8 is a cross-sectional view taken along line 8-8 in FIG. 6 (Example 1). It is sectional drawing (Example 2) which shows the opening periphery of the hood which concerns on this invention. It is explanatory drawing which shows the conventional vehicle body front part structure. It is a perspective view which shows the conventional hood. It is the 1st sectional view showing the conventional body front part structure. It is a 2nd sectional view showing the conventional body front part structure.

  Embodiments of the present invention will be described below with reference to the accompanying drawings. In the description, left, right, front, and rear indicate directions based on the driver who has boarded the vehicle. The drawings are to be viewed in the direction of the reference numerals.

A first embodiment of the present invention will be described. In addition, the arrow (FRONT) in a figure represents the vehicle body front of a motor vehicle.
As shown in FIG. 1, an engine hood 10 that can be opened and closed on the vehicle body side of an automobile is provided with a pair of left and right openings 11, 12 for releasing hot air in the engine room at the rear, and these openings 11, 12. Outlet decorative plates 13 and 14 are attached to the engine hood 10 so as to cover the openings 11 and 12 so that the inside is difficult to see.
The outlet decorative plates 13 and 14 are, for example, mesh-shaped components provided with a plurality of ventilation holes.
The front side of the hood 10 is constituted by a skin 16 as an outer panel, and an inner frame (details will be described later) as an inner panel is arranged inside the skin 16.

FIG. 2 shows a state where the skin 16 (see FIG. 1) is removed from the hood 10.
The hood 10 includes an inner frame 18, a striker stiffener 21 attached to the front upper surface of the inner frame 18, side stiffeners 22 and 23 attached to the left and right side upper surfaces of the inner frame 18, and the inner frame 18. The rear stiffener 24 attached to the rear part (the outline is a part drawn with a thick line) and the outlet decorative plates 13 and 14 are provided.

The striker stiffener 21 has a striker that can be coupled to the vehicle body on the lower surface.
The side stiffeners 22 and 23 are members that reinforce the side portions of the inner frame 18, and hinge-side attachment portions 22 a and 23 a that are attached to the hinge that attaches the hood 10 to the vehicle body side so as to be openable and closable together with the inner frame 18 at the rear portion. Is provided.
The rear stiffener 24 is a member that reinforces the rear portion of the inner frame 18, and the left and right ends are coupled to the side stiffeners 22 and 23.

FIG. 3 shows one outlet decorative plate 13 of FIG. 2 and the periphery of the outlet decorative plate 13.
The outlet decorative plate 13 is formed with a plurality of protrusions 13a on the periphery, and these protrusions 13a are respectively provided on the inner frame 18 and the rear stiffener 24 (the outlines are drawn in bold lines) with bolts 31 and nuts 32. Installed in.

  In the figure, reference numeral 24 a is a flange portion provided on the periphery of the rear stiffener 24, 34 is a mastic sealer partially applied to the flange portion 24 a in order to bond the rear stiffener 24 to the lower surface of the skin 16, and 36 is the skin 16. And a seal member attached to the flange portion 24a in order to partially seal between the rear stiffener 24 and the rear stiffener 24.

  The structure of the outlet decorative plate 14 and the periphery of the outlet decorative plate 14 are the same as the structure of the outlet decorative plate 13 and the periphery of the outlet decorative plate 13, and the description thereof is omitted.

As shown in FIG. 4, the skin 16 has an outer opening 16a, the inner frame 18 has an inner opening 18a located inside the outer opening 16a, and the rear stiffener 24 has a stiffener located inside the outer opening 16a. An opening 24b is opened, and the protruding portion 13a of the outlet decorative plate 13 covering the outer opening 16a includes a peripheral edge 18b of the inner opening 18a in the inner frame 18 and a peripheral edge 24c of the stiffener opening 24b in the rear stiffener 24. The upper surface of the flange portion 24 a of the rear stiffener 24 is bonded to the lower surface 16 b of the skin 16 with a mastic sealer 34. Reference numeral 38 denotes a reinforcing backing plate applied to the lower surface of the protruding portion 13a, and is fastened together with the peripheral edge portion 24c, the peripheral edge portion 18b, and the protruding portion 13a.
The outer opening 16a, the inner opening 18a, and the stiffener opening 24b are parts constituting the opening 11.

  As described above, the skin 16 and the inner frame 18 are connected by the rear stiffener 24 in the vicinity of the opening 11 (specifically, on the inner frame 18 side, the peripheral edge 18b of the inner opening 18a). The gap when the frame 18 is hemmed to the frame 18 can be prevented, the positional variation between the skin 16 and the inner frame 18 is suppressed, and the gap S2 formed between the outer opening 16a of the skin 16 and the outlet decorative plate 13 can be prevented. Can be made smaller than the conventional gap S1 (see FIG. 13) (S2 <S1).

FIG. 5 shows a state where the outlet decorative plates 3 and 14 are removed from the state of FIG.
The rear stiffener 24 (the part whose outline is drawn with a thick line) is a left and right opening reinforcing portion 24e, 24e in which a stiffener opening 24b is opened, and an inner portion for connecting these opening reinforcing portions 24e, 24e together. The connecting portion 24 f is provided in parallel with the rear edge 18 d of the frame 18.

FIG. 6 is an enlarged view of the left stiffener opening 24b and its periphery shown in FIG. 5, and the inner opening 18a of the inner frame 18 overlaps the lower side of the stiffener opening 24b.
The peripheral portion 24c of the stiffener opening 24b is a portion that overlaps the peripheral portion 18b (see FIG. 4) of the inner opening 18a of the inner frame 18 and reinforces the periphery of the inner opening 18a.
Each nut 32 is attached to a flat portion 24g formed on the peripheral edge portion 24c of the stiffener opening 24b by welding.

  FIG. 7 shows a state in which the peripheral edge 24 c of the rear stiffener 24, the peripheral edge 18 b of the inner frame 18, and the protruding portion 13 a of the outlet decorative plate 13 overlap in order from the top.

As shown in FIG. 8, the connecting portion 24f of the rear stiffener 24 includes a bottom wall 24j provided at the lowest level, a front inclined wall 24k extending obliquely forward and upward from the front end of the bottom wall 24j, and the front inclined wall 24k. It has a cross-sectional hat shape including a front flange 24m extending forward from the front end, a rear inclined wall 24n extending rearward and obliquely upward from the rear end of the bottom wall 24j, and a rear flange 24q extending rearward from the rear end of the rear inclined wall 24n. The front flange 24 m and the rear flange 24 q are attached to the inner frame 18. The front flange 24 m and the rear flange 24 q are attached to the inner frame 18.
A hemming connection is made to the rear edge flange 18g including the rear edge 18d of the inner frame 18 so that the rear edge 16d of the skin 16 is folded back from the front.

Next, a second embodiment of the present invention will be described. The same components as those in the first embodiment shown in FIG.
As shown in FIG. 9, an outer opening 16a is opened in the skin 16, an inner opening 18a located inside the outer opening 16a is opened in the inner frame 41, and a stiffener opening located inside the outer opening 16a is formed in the rear stiffener 43. 24b is opened, and the protruding portion 45a of the outlet decorative plate 45 covering the outer opening 16a is spot welded together with the peripheral edge portion 41b of the inner opening 18a in the inner frame 41 and the peripheral edge portion 43b of the stiffener opening 24b in the rear stiffener 43. . Reference numeral 47 denotes a reinforcing backing plate applied to the protruding portion 45a of the outlet decorative plate 45, and is spot welded together at the lower portion of the protruding portion 45a.

  As shown in FIGS. 1 to 4 above, an outer opening 16a for ventilation is formed in the skin 16 as an outer panel constituting the hood 10 that covers the upper part of the vehicle body in an openable and closable manner. An inner frame 18 as an inner panel attached to the inside of the skin 16 in the front body structure of the vehicle body closed by the outlet decorative plates 13 and 14 as a cover member having a plurality of holes for ventilation. The rear stiffener 24 as a reinforcing plate provided between the skin 16 and the inner frame 18 has an inner opening 18a opened inside the outer opening 16a, and the peripheral side (specifically, the flange portion 24a) is the skin 16 The inner opening 16a side (specifically, the peripheral edge 24c of the stiffener opening 24b) is fastened together with the inner frame 18 and the outlet decorative plates 13, 14 Since it is, it is possible to further reduce the gap S2 between the outer opening 16a and the outlet decorative plates 13 and 14, it is possible to improve the appearance. Further, the rigidity around the inner opening 18a (peripheral portion 18b) of the inner frame 18 can be increased, and the rigidity of the hood 10 can be ensured.

As shown in FIGS. 5, 6, and 8, hinge-side attachment portions 22 a and 23 a for attaching the hood 10 to hinges provided on the vehicle body side are provided on the left and right sides of the rear portion of the hood 10. The left and right outer openings 16a and inner openings 18a are opened on the inner side in the vehicle width direction of the hinge side mounting portions 22a and 23a, and the rear stiffener 24 surrounds the inner opening 18a, and the left and right opening reinforcing portions. 24e and 24e are connected to the rear edge 18d of the hood 10 so as to be connected to the rear edge 18d of the hood 10 in a cross-sectional hat-like connection portion 24f. The rigidity between the left and right hinge side attachment portions 22a, 23a can be further increased.
Therefore, the feeling (operating feeling, sound quality of the opening / closing sound, etc.) at the time of opening and closing the hood 10 can be improved, and vibration and lifting of the hood 10 can be prevented.

  The vehicle body front structure of the present invention is suitable for an automobile hood.

DESCRIPTION OF SYMBOLS 10 ... Hood (engine hood) 13, 14, 45 ... Cover member (outlet decorative board), 16 ... Outer panel (skin), 16a ... Outer opening, 18, 41 ... Inner panel (inner frame), 18a ... Inner opening, 18e: rear concave portion, 22a, 23a ... hinge side mounting portion, 24, 43 ... reinforcing plate (rear stiffener), 24e ... opening reinforcing portion, 24f ... connecting portion , 24j ... bottom wall, 24k ... front inclined wall, 24m ... front Flange, 24n: rear inclined wall, 24q: rear flange .

Claims (1)

In the vehicle body front structure in which an outer opening for ventilation is opened in the outer panel that constitutes a hood that covers the upper part of the vehicle body in an openable and closable manner, and the outer opening is closed with a cover member that can be vented.
The inner panel attached to the inner side of the outer panel has an inner opening opened to the inner side of the outer opening, and the reinforcing plate provided between the outer panel and the inner panel is bonded and fixed to the outer panel on the peripheral side. The inner opening side is fastened together with the inner panel and the cover member ,
Hinge side attachment portions for attaching the hood to hinges provided on the vehicle body side are provided on the left and right sides of the rear portion of the hood, and the left and right outer openings and inner openings are provided on the inner sides in the vehicle width direction of these hinge side attachment portions. Can be opened
The reinforcing plate is composed of an opening reinforcing portion that surrounds the inner opening, and a cross-sectional hat-shaped connecting portion that is provided in parallel to the rear edge of the hood to connect the left and right opening reinforcing portions,
In the rear portion of the inner panel, a rear concave portion having a hat-shaped cross section is formed across the vehicle width direction,
The cross-section hat-shaped connecting portion is formed in a shape along the rear-section recessed portion of the cross-section hat shape, and includes a bottom wall provided at the lowest, a front inclined wall extending obliquely forward and upward from a front end of the bottom wall, A front flange extending forward from the front end of the front inclined wall; a rear inclined wall extending obliquely rearward and upward from the rear end of the bottom wall; and a rear flange extending rearward from the rear end of the rear inclined wall;
A vehicle body front part structure in which the front flange and the rear flange are attached to the inner panel to form a closed cross section by the connecting part and the inner panel .

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