JPH0711453U - Car rear bumper - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a rear bumper such as a truck that can avoid interference with the road surface or the like without impairing the descent prevention function of the following vehicle. A central portion 4a of the rear bumper 4 is formed by bending side ends 4b of a rear bumper 4 attached to the rear end of the vehicle body frame 2 toward the front and the upper side of the vehicle, respectively.
The ground clearance of the rear bumper 4 is reduced to prevent diving due to a collision from the front of the rear, while the departing angle at the side edge of the rear bumper 4 is increased to avoid interference with roadside facilities such as road cants and offset collisions. I sometimes pushed the collision vehicle to the side.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a rear bumper of an automobile represented by a large truck or a large bus, and more particularly to a rear bumper suitable for an automobile having a large rear overhang.

[0002]

[Prior art]

 In a truck, etc., a rear bumper C is attached to the rear end of the vehicle body frame A via a bracket B as shown in FIG. 4 to prevent a succeeding vehicle from going under the vehicle body. There are many. Further, conventionally, the rear bumper C is formed in a straight line as shown in FIG. D is a front bumper.

On the other hand, an ordinary road is provided with a slope by a road surface cant, and moreover, a step is often provided between the roadside facility and the road surface. Therefore, when a vehicle passes through a step on a road with a large road cant as it enters or exits a truck terminal, etc., the actual ground clearance of the rear bumper decreases because the vehicle body leans to the rear side due to the road cant.

For this reason, in a large truck or the like having a large rear overhang, when the vehicle turns while passing through a step, the end of the rear bumper may interfere with the road surface or a roadside facility. In order to avoid such interference, it is necessary to increase the ground clearance of the rear bumper, but in this case, there is a problem that the function to prevent diving is degraded, and if the rear overhang is reduced, the vehicle body configuration will be established. It's gone.

[0005]

[Problems to be solved by the device]

 The present invention has been made in view of such a situation, and an object thereof is to provide a rear bumper capable of avoiding interference with a road surface or the like without impairing the diving prevention function.

[0006]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the present invention is characterized in that both ends of a rear bumper attached to the rear end of a vehicle body are bent toward the front and the upper side of the vehicle, respectively.

[0007]

[Action]

 Since the end of the rear bumper is bent forward and upward, the ground clearance at the center of the rear bumper is sufficiently low to secure the function of preventing the vehicle from following. , The ground clearance at the side edge of the rear bumper, which may interfere with the road surface, is high. Therefore, even in a large truck with a large rear overhang, even if the vehicle body leans to the rear side while turning while passing through the step due to entry and exit from a road with a large road surface to a truck terminal etc. There is no possibility that the end of the rear bumper will interfere with the road surface or roadside facilities.

Further, with respect to an offset collision in which a following vehicle collides with a position deviated from the center of the rear bumper, the colliding vehicle is pushed laterally by the side end portion of the rear bumper, so that the function of preventing diving is enhanced. It is also possible to suppress the deformation of the rear bumper due to the offset collision by fixing the tip of the side end of the rear bumper bent forward and upward to the vehicle body frame side.

[0009]

【Example】

 Embodiments of the present invention will be described below in detail with reference to the drawings. 1 is a schematic front view of a truck equipped with an embodiment of a rear bumper according to the present invention as seen from the rear, FIG. 2 is a schematic side view of the rear portion of the truck, and FIG. 3 is a schematic plan view of the rear bumper. A rear bumper 4 is attached to a rear end of a vehicle body frame 2 on which the rear body 1 is mounted via a bracket 3.

The rear bumper 4 is made of, for example, a molded product of a steel plate, and has a central portion 4 a sandwiched by the brackets 3 in a straight line parallel to the road surface 5. Further, the side end portions 4b of the rear bumper 4 located outside the bracket 3 are bent and formed toward the front and the upper side of the vehicle, respectively.

Then, the lower end of the stay 4c along the vertical direction is joined to the tip of the side end 4b of the bumper 4, and the upper end of the stay 4c is fastened to the lower surface of the rear body 1 by a bolt 6 to fix it. The deformation of the side end 4b of the rear bumper 4 is suppressed. Reference numeral 7 is a bolt for fastening and fixing the bracket 3 to the vehicle body frame 2, 8 is a rear wheel, and the lower end of the bracket 3 is fastened to the rear surface of the boundary portion between the central portion 4a and the side end portion 4b of the rear bumper 4 by a bolt (not shown). It is fixed.

That is, the side end portion 4b of the rear bumper 4 is bent and formed forward and upward of the vehicle. For this reason, as shown in FIG. 2, the straight line connecting the lower surface of the central portion 4a of the rear bumper 4 and the ground contact point of the rear wheel 8 and the departing angle α formed by the road surface 5 are set to be the same as those in the conventional case, and the departing angle α is set from the rear front. Even in the case where the function of preventing diving into a collision is enhanced, it is possible to increase the departing angle β of the tip lower surface of the side end portion 4b of the rear bumper 4 which easily interferes with the road surface 5 or a roadside facility due to a road surface cant or the like.

Therefore, even in a large truck or the like having a large rear overhang, even if the vehicle body leans toward the rear side while turning while passing through the step due to entry and exit from a road with a large road surface to a truck terminal or the like, It becomes difficult for the side edge of the rear bumper 4 to interfere with the road surface 5 or the roadside facility. Therefore, the deformation of the rear bumper 4 due to the interference with the road surface can be prevented, and various expenses associated with the bumper replacement can be reduced.

On the other hand, with respect to the offset collision that collides with the rear bumper 4 on the outer side of the bracket 3, the side end portion 4b inclined forward and upward has a lateral pushing action. For this reason, the vehicle having the offset collision is pushed to the side by being guided by the side end portion 4b, so that the function of preventing diving is enhanced. When the rear body 1 and the tip of the side end 4b of the rear bumper 4 that pushes out the vehicle having the offset collision as described above are connected to the rear body 1 via the stay 4c as in the embodiment, the rear bumper 4 is The mounting rigidity of the rear bumper 4 can be further increased, and the deformation of the rear bumper 4 due to the offset collision can be suppressed.

In the embodiment, the side end of the rear bumper 4 and the rear body 1 are connected via the stay 4c to enhance the deformation preventing function and the mounting rigidity of the rear bumper 4, but the stay 4c is not always required. There is no sex. Further, although the present invention is applied to a large truck in the embodiments, the present invention can be applied to various automobiles having a large rear overhang such as a large bus.

[0016]

[Effect of device]

 As is apparent from the above description, according to the present invention, it is possible to avoid the interference between the lower surface of the side end of the rear bumper and the road surface without impairing the function of preventing the following vehicle from diving.

[Brief description of drawings]

FIG. 1 is a schematic front view of a truck including an embodiment of a rear bumper according to the present invention, as viewed from the rear.

FIG. 2 is a schematic side view of the rear part of the same truck.

FIG. 3 is also a schematic plan view of the rear bumper.

FIG. 4 is a perspective view illustrating a general mounting state of a rear bumper of a truck.

FIG. 5 is a schematic perspective view of a rear bumper alone showing a conventional example.

[Explanation of symbols]

 1 Rear Body 2 Body Frame 3 Bracket 4 Rear Bumper 4a Central Part 4b Side End 4c Stay 5 Road Surface 6, 7 Bolt 8 Rear Wheel

Claims (1)

[Scope of utility model registration request] 1. A rear bumper for an automobile, characterized in that side edges of a rear bumper attached to a rear end of a vehicle body to prevent a succeeding vehicle or the like from going under are bent forward and upward, respectively.