JPH07101253A - Front structure of automobile - Google Patents

Abstract

PURPOSE:To reduce the occupied space of a supporting structure part and secure desirable radiator supporting rigidity in the structure of supporting the lower part of a radiator to No.1 cross member by a bracket. CONSTITUTION:A lower bracket 15 for a radiator is inserted between the upper panel 4 and lower panel 5 of No.1 cross member 2 forming closed cross section so that this closed cross section is vertically divided by the lower bracket 15. The front jointing flanges 4A, 5A of both panels 4, 5 are jointed to the lower bracket 15. A part of the lower bracket 15 is protruded onto the rear side of No.1 cross member 2, and this protruding part is provided with a fitting hole 18 for fittingly inserting the pin of the radiator.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a front structure of an automobile, and more particularly to a structure in which a lower part of a radiator mounted on a front part of a vehicle body is supported by a cross member.

[0002]

2. Description of the Related Art In automobiles, in order to improve the cooling efficiency of the radiator, the radiator is arranged at a position where the traveling wind taken in from the front grill is blown. In this case, the radiator is supported by the shroud above the radiator. It may be performed by supporting the upper part and supporting the lower part by the No1 cross member. For example, in Japanese Unexamined Patent Publication No. 63-112218, as shown in the schematic view of FIG. 6, a bracket B is joined to the lower surface of the No1 cross member A in a state where its rear side projects to the rear side of the No1 cross member A. At the same time, a radiator support portion including a small hole C is formed on the protruding portion of the bracket B and the joining flange portion of the No1 cross member A, and the mounting pin E of the radiator D is fitted into the small hole C, thereby A structure is disclosed in which a cross member A supports a radiator D.

[0003]

By the way, as in automobiles of recent years, when the number of cylinders of an engine is increased, the number of valves is increased, and the intake system is increased in size by adding a supercharger, the space in the engine room is increased. Therefore, when installing the radiator as described above, the layout of the radiator does not place space as much as possible (for example, without increasing the height of the hood) and the supporting rigidity of the radiator. It will be necessary to ensure that

However, in order to secure the supporting rigidity, it is necessary to support the radiator D by using the large bracket B as in the above publication, and the bracket B is No.
Since the one cross member A largely projects to both the rear side and the lower side, the space occupied by the radiator support structure portion tends to increase.

Therefore, an object of the present invention is to provide a front structure of an automobile capable of supporting the radiator in a smaller space while ensuring good supporting rigidity of the radiator.

[0006]

That is, the invention according to claim 1 of the present invention (hereinafter referred to as the first invention) is such that a closed cross section is formed by a cross member upper panel and a cross member lower panel. A front structure of an automobile in which a radiator has a lower portion supported by a cross member arranged in a vehicle width direction, and for joining to each of the cross member upper panel and the cross member lower panel protruding on the rear surface side of the cross member. In addition to forming the flange, a bracket that is sandwiched between the cross member upper panel and the cross member lower panel and divides the closed cross section into upper and lower parts is provided, and the bracket is projected to the rear side of the cross member with respect to the joining flange. And a radiator support portion is provided on the protruding portion.

The invention according to claim 2 (hereinafter referred to as the second
The present invention) is characterized in that the radiator support portion is configured such that the upper side of the radiator is tilted backward when the lower portion of the radiator is supported by the radiator support portion.

Further, in the invention described in claim 3 (hereinafter referred to as the third invention), the cross member upper panel and the cross member lower panel each have a front joint flange on the front surface side of the cross member, The bracket is sandwiched between these front joining flanges and joined to these front joining flanges.

[0009]

According to the first aspect of the invention, most of the brackets that support the lower portion of the radiator are sandwiched inside the cross member, and only the radiator support portion provided on the bracket is projected from the cross member. The space occupied by the radiator support structure around the cross member can be small. Further, since the bracket is reinforced by the sandwiching structure of the upper member and the lower panel of the cross member, and the cross member itself is reinforced by this bracket, the radiator supporting rigidity can be increased.

Further, according to the second aspect of the invention, the structure of the radiator supporting portion is such that the radiator upper portion is tilted backward in the radiator supporting state. Therefore, the height of the radiator is suppressed and the radiator lower portion is structured by this inclined structure. Can be brought closer to the cross member.

Further, according to the third aspect of the present invention, front and rear joint flanges are formed on each of the upper panel and the lower panel of the cross member, and the brackets are provided on the front side on the side opposite to the radiator support portion. Since the flange is joined to the partial joint, the joint strength between the cross member and the bracket is increased.

[0012]

Embodiments of the present invention will be described below with reference to the drawings.

In FIG. 1, the left and right front side frames 1, 1 (see FIG. 2) are mounted on the front part of the vehicle body, and No. 1 is attached.
The cross member 2 is arranged, and the shroud upper 3 is arranged above the No. 1 cross member 2 and at a position slightly closer to the rear side of the vehicle body than the No. 1 cross member 2 with the left and right front side frames 1 and 1 sandwiched therebetween. .

In that case, the above No. 1 cross member 2
Is composed of a cross member upper panel 4 having front and rear joining flanges 4A and 4B and a substantially hat-shaped cross section, and a cross member lower panel 5 also having front and rear joining flanges 5A and 5B. By joining the joining flanges 4A, 4B, 5A, 5B of No. 5, a closed cross section having a hollow interior is formed. And this No
As shown in FIGS. 2 and 3, both ends of the cross member 2 are joined to the connecting members 6 and 6 attached to the left and right front side frames 1, 1 and the connecting member 6 is covered with a fixed gusset 7. By being joined, the front side frames 1 and 1 are supported.

Further, in No. 1 cross member 2 described above, lower brackets 9 and 9 for cooler capacitors each having a mounting hole 8 are fixed to the upper surfaces of both ends of the cross member upper panel 4, and the lower part of the cooler capacitor 10 is fixed. The pin 11 (see FIG. 1) provided in the mounting hole 8 is inserted into the mounting hole 8. On the other hand, the above-mentioned shroud upper 3 is provided with a mounting hole 12 (see FIG. 1) corresponding to the upper end of the cooler condenser 10 and the cooler condenser upper bracket 1
3 is attached, and the pin 14 provided on the upper portion of the cooler condenser 10 is attached to the attachment hole 12 of the upper bracket 13.
The cooler condenser 10 is no
1 supported by the cross member 2 and the shroud upper 3.

Further, radiator lower brackets 15 are attached to both ends of the No. 1 cross member 2. As is apparent from FIGS. 4 and 5, the lower bracket 15 has an inverted dish-like metal fitting having an upward protruding portion 16 and a joining flange 17 provided on the peripheral portion of the protruding portion 16. In the state of being sandwiched between the upper panel 4 and the lower panel 5 of the No1 cross member 2 to divide the above-mentioned closed cross section of the No1 cross member 2 into upper and lower parts,
The upper panel 4 and the lower panel 5 are joined to the front joining flanges 4A and 5A, respectively, and in this joined state, a part of the protrusion 16 is the No1 cross member 2.
Is projected to the rear side of the
Is provided. Then, the pin 20 provided at the lower end of the radiator 19 (see FIG. 1) is fitted into the mounting hole 18 of the lower bracket 15.

On the other hand, in the shroud upper 3, the radiator upper bracket 21 is attached to the shroud upper 3.
Is attached, and the upper end of the radiator 19 is supported by the upper bracket 21, whereby the radiator 19 is supported by the No. 1 cross member 2 and the shroud upper 3.

In this case, each of the cooler condenser 10 and the radiator 19 is supported so that the upper portions of the cooler condenser 10 and the radiator 19 are inclined toward the rear side of the vehicle body, as shown in FIG. Therefore, the support surface on which the mounting holes 8 and 12 of the upper and lower brackets 9 and 13 for the cooler condenser are formed is also an inclined surface, and the lower radiator bracket 1
5, the part having the mounting hole 18 is tilted slightly downward, and the upper bracket 21 is also shaped to support the radiator 19 which is tilted backward.

According to such a radiator support structure,
Most of the lower bracket 15 that supports the lower part of the radiator 19 is sandwiched inside the No1 cross member 2, and only the mounting hole 18 portion for supporting the radiator lower part provided in the lower bracket 15 is rearward from the No1 cross member 2. Since it projects, the space occupied by the radiator lower bracket 15 around the No. 1 cross member 2 is small. On the other hand, the lower bracket 1
5 is reinforced by the sandwiching structure of the upper panel 4 and the lower panel 5 of the No. 1 cross member 2, and
Since the lower bracket 15 divides the closed cross section of the No1 cross member 2, the No1 cross member 2 itself is also reinforced by the lower bracket 15, so that the radiator supporting rigidity can be increased.

In addition, since the radiator 19 is designed so that the upper side of the radiator inclines backward when the radiator 19 is supported, the height of the radiator 19 can be suppressed, and an increase in bonnet height can be prevented. Due to the inclined structure, the radiator lower portion can be brought closer to the No. 1 cross member 2 and the space occupied by the lower supporting portion can be reduced.

Further, the lower bracket 15 for the radiator
Is joined between the front side joining flanges 4A and 5A provided on both panels 4 and 5 in a state of being sandwiched between the cross member upper panel 4 and the cross member lower panel 4, so the No1 cross member The coupling strength between the second bracket 2 and the lower bracket 15 is increased, and the support rigidity of the radiator 19 is further increased.

[0022]

As is apparent from the above description, according to the first aspect of the present invention, most of the brackets that support the lower portion of the radiator are sandwiched inside the cross member, and the radiator provided on the bracket is disposed. Since only the support portion is projected from the cross member, the space occupied by the radiator support structure portion around the cross member is small, and the bracket is reinforced by the sandwiching structure of the cross member's upper panel and lower panel, Since the bracket also reinforces the cross member itself, the rigidity for supporting the radiator can be increased.

Further, according to the second aspect of the invention, the structure of the radiator support portion is such that the radiator upper part is tilted backward in the radiator supported state, so that the height of the radiator is suppressed and the radiator lower part is constructed by this tilt structure. Can be brought closer to the cross member, the bonnet height can be prevented from increasing, and the occupied space can be reduced.

Further, according to the third aspect of the invention, the front panel side and the rear side flange are formed on each of the upper panel and the lower panel of the cross member, and the bracket is attached to the front side on the side opposite to the radiator supporting portion. Since it is joined to the partial joining flange, the joining strength between the cross member and the bracket is increased, and the radiator supporting rigidity is further increased.

[Brief description of drawings]

FIG. 1 is a side view of a radiator support structure according to an embodiment of the present invention.

FIG. 2 is a perspective view showing an end supporting structure of a No. 1 cross member as seen from the front of the vehicle body.

FIG. 3 is a plan view of the No1 cross member of FIG.

FIG. 4 is a sectional view taken along the line AA of FIG.

5 is a plan view of a portion of FIG. 4 with a cross member upper panel removed.

FIG. 6 is an explanatory diagram of a conventional example.

[Explanation of symbols]

 2 No1 cross member 3 Shroud upper 4 Cross member upper panel 5 Cross member lower panel 4A, 5A Front side joining flange 4B, 5B Rear side joining flange 15 Lower bracket for radiator 18 Mounting hole 19 Radiator 21 Upper bracket for radiator

Claims (3)

[Claims] 1. A front structure of an automobile, wherein a lower portion of a radiator is supported by a cross member arranged in a vehicle width direction with a closed cross section formed by a cross member upper panel and a cross member lower panel. , A cross-member upper panel and a cross-member lower panel each have a joining flange protruding on the rear surface side of the cross-member, and are sandwiched between the cross-member upper panel and the cross-member lower panel to raise and lower the closed cross section. A front part structure of an automobile, characterized in that a bracket that is divided into two parts is provided, the bracket is projected to the rear side of the cross member with respect to the joining flange, and a radiator support part is provided at the protruding part. 2. The front portion of the automobile according to claim 1, wherein the radiator support portion is configured such that the upper side of the radiator is tilted backward when the lower portion of the radiator is supported by the radiator support portion. Construction. 3. The cross member upper panel and the cross member lower panel each have a front joint flange on the front surface side of the cross member, and the bracket is sandwiched between these front joint flanges to join the front joints. The front structure of the automobile according to claim 1, wherein the front structure is joined to a flange for use.