JP5118012B2 - Large vehicle - Google Patents

Description

  The present invention relates to a large vehicle including a front underrun protector that prevents a passenger car from getting into a lower part of a truck at the time of a frontal collision between the truck and the passenger car, for example.

When a truck and a passenger car collide head-on, there is a possibility that the passenger car will get into the lower part of the truck.
Therefore, as a collision safety device that prevents a crashed passenger car from getting into the lower part of the truck, it has recently been obliged to equip the front bumper with a front underrun protector as disclosed in Patent Documents 1 and 2. .

  For example, as shown in FIGS. 5 to 7, a conventional large vehicle to which a front underrun protector is not attached has L-type brackets 2 attached to the lower side of the vehicle frame 1 one by one on the left side. A stay 5 for fixing a lower portion of the radiator 4 is fixed by a bolt 6 and a nut 7 via a rubber mounting bracket 3, and a lower portion of the radiator 4 and the stay 5 are fixed by a bolt 9 via a rubber mounting bracket 8. .

On the other hand, a conventional large vehicle to which a front underrun protector is attached, for example, as shown in FIG. 8, a front underrun protector 10 is placed below a front bumper 12 along a vehicle width direction through a bracket 11 in a vehicle frame 1. It is attached to.
JP 2003-276536 A JP 2000-272444 A

Therefore, if the front underrun protector 10 is to be attached to a conventional large vehicle, the attachment structure of the bracket 3 that supports the front underrun protector 10 and the stay 5 that supports the radiator 4 may be complicated.
In addition, since the radiator 4 is located behind the front underrun protector 10, the bracket 11 may be deformed at the time of a collision, and there is a possibility of giving an impact to the radiator 4.

Therefore, the present invention has been made to solve such a conventional problem, and an object thereof is to integrate a bracket for supporting a front underrun protector and a stay for supporting a radiator. It is to provide a simplified large vehicle.
Another object of the present invention is to provide a large vehicle capable of protecting a radiator from an impact at the time of a collision.

  The invention according to claim 1 is a front underrun protector attached below the front bumper along the vehicle width direction, and a radiator attached to the vehicle body frame along the vehicle width direction behind the front underrun protector, On both sides of the radiator, a bracket that is attached to the vehicle body frame and supports the front underrun protector, and both sides of the lower portion of the radiator and the bracket are connected by bolts via rubber mounting brackets. It is characterized by comprising a stay.

  The invention according to claim 1 is the large vehicle according to claim 1, wherein the stay has a long hole that opens a hole for fixing the bolt in a vehicle length direction at a connecting portion with the bracket. To do.

According to the present invention, by integrating the stay of the radiator and the bracket of the front underrun protector, the strength of the stay can be improved, the number of parts can be reduced, and the versatility can be enhanced.
In addition, the bracket of the front underrun protector is deformed at the time of collision, and the radiator can be protected from impact.

Hereinafter, the present invention will be described based on embodiments shown in the drawings.
(Embodiment 1)
1 to 3 show a large vehicle according to Embodiment 1 of the present invention. In this embodiment, only the main part of the invention is shown, and components such as the engine are omitted.
In the present embodiment, the front underrun protector 20 is attached below the front bumper 31 along the vehicle width direction. A radiator 25 is attached to the body frame 30 along the vehicle width direction behind the front underrun protector 20.

Two brackets 21 that support the front underrun protector 20 are attached to the vehicle body frame 30 on both sides of the radiator 25.
The stays 26 are connected to both side portions of the lower portion of the radiator 25 and the bracket 21 by bolts 23 and 28 via rubber mounting brackets 22 and 27, respectively.
In the present embodiment, the stay 26 is directly fixed to the two brackets 21 that support the front underrun protector 20 via the rubber mounting brackets 22 and 27 with the bolts 23 and 28, respectively. The L-shaped bracket 2 required in the conventional mounting structure shown in FIG. At the same time, the stay 26 can be made smaller than the stay 5 in the conventional mounting structure shown in FIGS. 5 to 7, and the strength can be improved.

(Embodiment 2)
FIG. 4 shows a large vehicle according to Embodiment 2 of the present invention.
The present embodiment is different from the first embodiment in that the stay 26 is provided with an impact absorbing function.
In the stay 26, a hole 26 a through which the bolt 23 is inserted is a long hole that opens in the vehicle length direction at a position facing the two brackets 21 that support the front underrun protector 20.

According to this embodiment, even if the bracket 21 that supports the front underrun protector 20 is deformed rearward during a light collision from the front of the vehicle, the bolt 23 moves along the long hole, so that the radiator 25 is moved to the radiator 25. Input can be reduced.
Also in this embodiment, the same effects as those of the first embodiment can be achieved.

It is a schematic front view which shows the principal part of the large vehicle which concerns on Embodiment 1 of this invention. It is the A section enlarged view of FIG. It is a schematic side view of FIG. It is a schematic front view which shows the principal part of the large vehicle which concerns on Embodiment 2 of this invention. It is a schematic front view which shows the principal part of the conventional large vehicle. It is the B section enlarged view of FIG. FIG. 6 is a schematic side view of FIG. 5. It is a schematic front view which shows the principal part of another conventional large vehicle.

Explanation of symbols

20 Front underrun protector 21 Bracket 22, 27 Rubber mounting bracket 23, 28 Bolt 25 Radiator 26 Stay 26a Hole 30 Body frame 31 Front bumper

Claims (2)

A front underrun protector mounted along the vehicle width direction below the front bumper;
A radiator attached to the body frame along the vehicle width direction behind the front underrun protector;
On both sides of the radiator, a bracket attached to the vehicle body frame and supporting the front underrun protector,
A large vehicle comprising: a stay for connecting both sides of the lower portion of the radiator and the bracket with a bolt via a rubber mounting bracket. The large vehicle according to claim 1,
The said stay has a long hole which opens the hole which fixes the said bolt in a vehicle length direction in the connection part with the said bracket. The large vehicle characterized by the above-mentioned.

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