JPH0248296Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a front body structure of an automobile, such as a truck, in which a cabin is provided on a frame.

(Prior art) Generally, in the case of passenger cars, a so-called unitary structure in which the body and frame are integrated is adopted as the body structure of an automobile.
In the case of a truck (see Japanese Patent Publication No. 2003-12101), a structure is adopted in which a pair of left and right frames extending in the longitudinal direction of the vehicle body is provided, and a cabin is rubber-mounted onto the frames.

In this case, the shroud panel that makes up the front of the cabin not only has a cooling air intake opening in the center in the vehicle width direction, but also has a cooling air intake opening on both sides in the vehicle width direction for rubber mounting the cabin to the frame. A cabin mount bracket is joined to the shroud panel, and a cross member extending in the vehicle width direction is provided at the bottom of the shroud panel to increase the tension and rigidity of the shroud panel.

(Problem that the invention aims to solve) However, recently, it has become necessary to set the cooling air intake of the shroud panel very large due to equipment such as cooling equipment, and as a result, the cross member has become smaller than the shroud panel. The lower end of the bracket is positioned below the cabin mount bracket joint. For this reason, if a downward load is applied to the shroud panel from above for some reason, the shroud panel will undergo significant buckling deformation in the forward direction, resulting in the problem of welding peeling at the cabin mount bracket joint. It was hot.

In view of these drawbacks, the purpose of the present invention is to effectively reinforce the joint portion of the shroud panel with the cabin mount bracket when a large cooling air intake port is opened in the shroud panel. The purpose is to reliably prevent welding from peeling in that area.

(Means for Solving the Problems) In order to achieve the above object, the solving means of the present invention is such that, in an automobile in which a cabin is provided on a frame extending in the longitudinal direction of the vehicle body, the front surface of the cabin is configured so that cooling air can be a shroud panel with an open intake; a cabin mount bracket joined to the rear side of the shroud panel for rubber-mounting the cabin to the frame; and a cabin mount bracket provided at the lower front side of the shroud panel. The vehicle also includes a cross member extending in the vehicle width direction, and a reinforcement joined to the front side of the shroud panel in correspondence with the cabin mount bracket and having a lower end joined to the cross member. The cabin mount bracket is joined to the rear surface of the shroud panel at a position above the cross member, and the reinforcement is connected to a vertical portion joined to the front surface of the shroud panel. , a horizontal portion that is bent at a substantially right angle from the lower end of the vertical portion, extends toward the front of the vehicle body, and is joined to the upper surface of the cross member; and a side wall portion that connects the vertical portion and the horizontal portion on both left and right sides thereof. The structure consists of the following.

(Function) With the above configuration, in the present invention, the cabin mount bracket joint of the shroud panel is effectively reinforced by the reinforcement connected to the cross member, thereby increasing the rigidity of that part. It was designed so that it could be greatly enhanced.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

1 to 5 show an embodiment in which the present invention is applied to the front body structure of a truck. In FIG. 4, reference numeral 1 denotes a pair of left and right main frames extending in the longitudinal direction of the vehicle body, and the main frames 1 constitute a frame set 2 together with a cross frame (not shown) that connects the two to each other. Although not shown, the frame set 2 also includes an engine,
A power transmission device, a suspension device, and the like are attached to form a so-called chassis. Reference numeral 3 denotes a cabin provided on the main frame 1 or the frame assembly 2, and the cabin 3 is elastically supported by the main frame 1 at a plurality of locations via rubbers 4, .

And one elastic support part (rubber mount part) to the main frame 1 at the front part of the cabin 3.
The structure of is shown in FIGS. 1-3.
1 to 3, reference numeral 5 denotes a shroud panel constituting the front surface of the cabin 3, and a large substantially rectangular cooling air intake 6 is opened in the center of the shroud panel 5 in the vehicle width direction. At the same time, a cabin mount bracket 7 for rubber-mounting the cabin 3 to the main frame 1 is provided on the rear side of the side portion in the vehicle width direction. As shown in detail in FIG. 5, the cabin mount bracket 7 includes a base 7a extending in the horizontal direction, and a base 7
four leg pieces 7b, 7b, .
c, 7c, .
It is connected via rubber 4 to a mounting bracket 8 attached to the outer surface of the front end.

Further, a cross member 9 with a hat-shaped cross section extending in the vehicle width direction is provided at the lower front side of the shroud panel 5, and the cross member 9 has the following features:
It is joined to the shroud panel 5 at flanges 9a, 9a on both sides thereof, forming a closed cross section with the shroud panel 5. Here, in relation to the fact that the cooling air intake 6 of the shroud panel 5 is set large, the cross member 9 has a lower end of the shroud panel 5 at its longitudinal direction (vehicle width direction) end, and a lower end of the shroud panel 5 that connects the cabin. The cabin mount bracket 7 is located at a position below the base 7a of the mount bracket 7 and corresponds to the joint between the flanges 7c and 7c, and the cabin mount bracket 7 is joined at a position above the cross member 9 on the rear surface of the shroud panel 5. ing.

As a feature of the present invention, a reinforcement 10 is provided on the front side of the shroud panel 5 at a position above the cross member 9 and corresponding to the cabin mount bracket 7. The reinforcement 10 has a vertical portion 10 superimposed and joined to the front surface of the shroud panel 5.
a, a horizontal portion 10b bent at a substantially right angle from the lower end of the vertical portion 10a and extending toward the front of the vehicle; a pair of side wall portions 10c connecting the vertical portion 10a and the horizontal portion 10b on both left and right sides; 10c, and the horizontal portion 10b is joined to the upper surface (upper side wall portion) of the cross member 9.

Therefore, in the above embodiment, the vertical portion 10a of the reinforcement 10 is joined to the front side of the shroud panel 5 at a position corresponding to the cabin mount bracket 7 above the cross member 9, and the reinforcement Horizontal part 10 of segment 10
By joining b to the upper surface of the cross member 9, the rigidity of the joints of the flanges 7c, 7c, . With the reinforcement 10 in a normal state, it is possible to greatly increase the height. Furthermore, the reinforcement 10 has a high rigidity by connecting the vertical portion 10a and the horizontal portion 10b with the side wall portions 10c, 10c at both left and right ends, so that the reinforcing effect can be further enhanced. can. Therefore, even if a downward load is applied to the shroud panel 5 from above, such as when closing the hood that covers the engine compartment opening of the cabin 3, the front Buckling deformation does not occur, and therefore welding separation at the joint can be prevented as reliably as possible.

In the above embodiments, the present invention was applied to the front body structure of a truck, but the invention is not limited to trucks, but can be similarly applied to the front body structure of a type of automobile in which a cabin is provided on the frame. Of course, it can be applied.

(Effects of the invention) As described above, according to the front body structure of an automobile according to the invention, a reinforcement is joined to the front side of the shroud panel in correspondence with the cabin mount bracket, and the reinforcement is By connecting the lower end to the cross member, the rigidity of the joint part of the shroud panel to the cabin mount bracket can be greatly increased by the above-mentioned reinforcement. By suppressing bending deformation, it is possible to reliably prevent weld peeling at the cabin mount bracket joint.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; Fig. 1 is a plan view of the left side of the vehicle body of the shroud panel;
The figure is a sectional view taken along the - line in Figure 1, Figure 3 is a perspective view of the left side of the vehicle body of the shroud panel, and Figure 4 is a cross-sectional view taken along the - line in Figure 1.
The figure is a schematic side view showing the body structure of the truck.
The figure is a perspective view of the cabin mount bracket. 1... Main frame, 3... Cabin, 5...
... Shroud panel, 6... Cooling air intake, 7...
...Cabin mount bracket, 9...Cross member, 10...Reinforcement, 10a
... Vertical part, 10b... Horizontal part, 10c... Side wall part.

Claims (1)

[Scope of utility model registration request] In an automobile in which a cabin is provided on a frame extending in the longitudinal direction of the vehicle body, a shroud panel that forms the front surface of the cabin and has a cooling air intake opening, and a shroud panel that is joined to the rear side of the shroud panel and that forms the front surface of the cabin; A cabin mount bracket for rubber mounting the to the frame, a cross member extending in the vehicle width direction provided at the bottom of the front side of the above shroud panel, and a corresponding to the above cabin mount bracket on the front side of the above shroud panel. and a reinforcement whose lower end is joined to the cross member, the cabin mount bracket being joined at a position above the cross member on the rear surface of the shroud panel, The reinforcement includes a vertical portion that is joined to the front surface of the shroud panel, and a horizontal portion that is bent at a substantially right angle from the lower end of the vertical portion, extends toward the front of the vehicle body, and is joined to the top surface of the cross member. . A front body structure for an automobile, comprising side wall portions connecting the vertical portion and the horizontal portion on both left and right sides thereof.