JP2506750Y2 - Radiator support structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a radiator support structure for an automobile.

[Conventional technology]

The radiator of a motor vehicle is generally located at the front end of the front body.

That is, as shown in FIGS. 4 and 5, the radiator support cushion arranged at the lower end portion of the radiator 50.
50A is a rear side surface 5 of the front cross member 52 in the vehicle front-rear direction.
It is inserted from the upper side in the vehicle vertical direction into the mounting hole 56 of the bracket 54 in which the front portion 54A is welded to the 2A. Alternatively, as shown in FIG. 6, the front portion 54A of the bracket 54 is fixed to the rear side surface 52A of the front cross member 52 by the bolt 58 and the nut 60 in the vehicle front-rear direction.

However, in these radiator support structures, the bracket 54 is fixed to the front cross member 52 only at its front end portion 54A. Because of this, the bracket
There is a problem that the rear portion 54B of the rear portion 54 is easily bent downward in the vehicle vertical direction, and the supporting rigidity of the radiator 50 is low.

As a method of improving this problem, it is conceivable to increase the wall thickness of the bracket 54, but in this case, the weight is increased. Further, it is conceivable to increase the welding strength between the front cross member 52 and the bracket 54 or the tightening strength of the bolt 58, but in this case, the support rigidity cannot be expected to be significantly improved.

Further, in the radiator support structure described above, since the bracket 54 projects rearward in the vehicle front-rear direction, there is a problem that the engine mounting work is hindered by the bracket 54.

[Problems to be solved by the device]

In consideration of the above facts, the present invention has an object to provide a radiator support structure capable of sufficiently improving the support rigidity of a radiator without causing an increase in weight and without hindering engine mounting work. .

[Means for solving the problem]

The present invention is directed to a pair of front side members arranged along the vehicle front-rear direction at both ends in the vehicle width direction of a lower portion of a front body, a front cross member connecting each front end of these front side members, and one end. A strut bar bracket fixed to the pair of front side members and the other end fixed to the front cross member, wherein the strut bar bracket is a strut bar bracket upper and a strut bar bracket. It has a closed cross-section structure with a toe bar bracket, and a strut bar is pivotally supported by the closed cross-section structure part, and the closed cross-section structure part is close to the joint flange part on the front side in the vehicle front-rear direction of the closed cross-section structure part. A radiator support portion for supporting the lower end portion of the radiator is formed.

[Action]

In the present invention having the above structure, the lower end portion of the radiator is supported by the radiator support portion formed in the strut bar bracket. For this reason, it is not necessary to fix the dedicated bracket for supporting the radiator to the rear side of the front cross member in the vehicle front-rear direction, so that the weight is not increased and the engine mounting work is not hindered. The strut bar bracket has one end fixed to the front side member and the other end fixed to the front cross member, and has a so-called double-supported structure. A radiator support portion for supporting the lower end portion of the radiator was formed in the portion close to the closed cross-section structure portion. Therefore, the supporting rigidity of the radiator can be sufficiently improved.

〔Example〕

 An embodiment of the present invention will be described with reference to FIGS.

In the figure, arrow FR indicates the vehicle front direction, arrow RS indicates the vehicle right direction, arrow LS indicates the vehicle left direction, and arrow UP indicates the vehicle upward direction.

As shown in FIG. 3, the front body 10A of the vehicle 10 is
Front side members 11 are arranged at both ends in the vehicle width direction of the vehicle along the vehicle front-rear direction, and a front cross member arranged along the vehicle width direction is arranged at the vehicle front-rear direction front end of the front side member 11. Both ends of the member 12 are joined.

As shown in FIG. 2, the front cross member 12 is
The front cross member is composed of the front 28 and the front cross member rear 30 and forms a closed cross section.
The vertical cross-sectional shape of the front cross member front 28 is U-shaped, the opening faces the rear of the vehicle, and the front cross member rear 30 is arranged in the opening. Further, the vertical cross-sectional shape of the front cross member lower 30 is U-shaped, the opening faces the rear of the vehicle, and the upper leg portion 30A and the lower leg portion 30B are respectively the upper leg portion 28A and the upper leg portion 28A of the front cross member front 28. It is welded to each tip of the lower leg 28B.

A wheel 13 is arranged on the vehicle width direction outer side of the vehicle front-rear direction central portion of the front side member 11. The axle of the wheel 13 is provided with a suspension cross member 16 via a lower arm 14 arranged inside the wheel 13 in the vehicle width direction.
It is connected to.

At the outer end of the lower arm 14 in the vehicle width direction, a rear end of the strut bar 18 that supports the axle of the wheel 13 is formed.
18A is installed. Also, this Stratbar 18
A rubber bush 20 is attached to a front end portion 18B of the vehicle in the front-rear direction, and the strut bar 18 is fixed to the strut bar bracket 22 via the rubber bush 20.

As shown in FIG. 1, both ends 24A of the stabilizer bar 24 in the vehicle width direction are attached to the outer ends of the lower arms 14 in the vehicle width direction to reduce rolling of the vehicle body.
Further, the stabilizer bar 24 is supported by the stabilizer bar bracket 22 by the stabilizer bar bracket 26.

As shown in FIG. 2, this strut bar bracket 22 is composed of a strut bar bracket upper 23 and a strut bar bracket trocar 25, and their outer peripheral portions are welded together to form a closed cross-section structure portion 27. Has been formed. Further, the front end portion 22B of the joint flange portion of the strut bar bracket upper 23 and the strut bar bracket trouser 25 on the front side in the vehicle front-rear direction is the lower surface of the front cross member 12,
That is, the lower leg portion 28B of the front cross member front 28
Further, bolts 33, 34 and nuts 35, 36 are fixed from the lower side in the vehicle vertical direction.

Further, the flange portion 22A on the outer side in the vehicle front-rear direction of the strut bar bracket upper 23 and the strut bar bracket trouser 25 is attached to the front side member 11 with bolts 2.
It is fixed by nuts 37 and 39 welded in the closed cross sections of 9 and 31 and the front side member 11.

The position of the strut bar bracket upper 23 and the strut bar bracket trouser 25 in the front-rear direction of the vehicle in the front-rear direction of the joint flange portion at the rear of the center of the bolts 33, 34, that is, in the front-rear direction A through hole 38 as a radiator supporting portion is formed at a position 22C close to the closed cross-section structure portion 27 on the front side in the direction, and the through hole 38 has a radiator support cushion arranged at the lower end portion of the radiator 40. 40A is inserted from the upper side in the vehicle vertical direction.

It should be noted that the same structure is provided on the right side portion in the vehicle width direction.

 Next, the operation of this embodiment will be described.

The radiator support cushion 40A of the radiator 40 has a through hole 38 formed in the pair of strut bar brackets 22.
Inserted and supported. This Strat Bar Bracket
The front end 22B of the 22 has a bolt 3
3, 34 and nuts 35, 36 are fixed, and the rear end 22A is fixed to the front side member 11 by bolts 29, 31 and nuts 37, 39, which is a so-called double-supported structure and joint flange portion. The radiator 40 is placed at a position 22C close to the closed cross-section structure 27 on the front side in the vehicle front-rear direction of the closed cross-section structure 27.
A through hole 38 for supporting the lower end of the. Therefore, a dedicated bracket for supporting the radiator 40 is not required, and the supporting rigidity of the radiator can be sufficiently improved without increasing the weight.

In addition, increasing the support rigidity of the radiator 40 in this way is intended to reduce the vibration and noise.
When is used as a dynamic damper, it is easy to adjust the spring constant of the radiator support cushion 40A. Also,
As a result, it became possible to secure the quality related to the suppression of vibration and noise. Furthermore, the Stratbar bracket 22 can be mounted on the front body 10A at the same time as the engine below the engine when the engine is mounted, so it does not hinder the engine mounting work.

The support structure above the radiator 40 is a well-known support structure, and a description thereof will be omitted.

[Effect of device]

Since the present invention has the above-mentioned configuration, it has an excellent effect that the supporting rigidity of the radiator can be sufficiently improved without causing an increase in weight and without hindering the engine mounting work.

[Brief description of drawings]

1 is a plan view of the radiator supporting structure of the present invention seen from the lower side of the vehicle showing the left side portion of the vehicle, FIG. 2 is a sectional view taken along the line II-II of FIG. 1, and FIG. 3 is the radiator supporting structure of the present invention. FIG. 4 is a plan view of the vehicle body viewed from below, FIG. 4 is a side sectional view showing a conventional radiator support structure, FIG. 5 is a partially enlarged view of FIG. 4, and FIG. 6 is another conventional radiator. It is a sectional side view which shows a support structure. 10A: Front body, 11: Front side member, 12: Front cross member, 22: Strat bar bracket, 27: Closed cross section structure, 38: Through hole, 40
...... Radiator, 40A ...... Radiator support cushion.

Claims (1)

(57) [Scope of utility model registration request] 1. A pair of front side members arranged along the vehicle front-rear direction at both ends of a lower portion of a front body in the vehicle width direction, and a front cross member connecting each front end portion of these front side members, respectively. A strut bar bracket having one end fixed to the pair of front side members and the other end fixed to the front cross member, wherein the strut bar bracket is a strut bar bracket upper. The strut bar is a closed cross-section structure with a bracket, and the strut bar is pivotally supported on the closed cross-section structure part, and the joint flange part on the vehicle front-rear direction front side of the closed cross-section structure part is close to the closed cross-section structure part. And a radiator support portion for supporting the lower end portion of the radiator is formed. Structure.