BUMPER ASSEMBLY

Field of the Invention

The present invention relates to a bumper assembly the weight of which is decreased and which enables to decrease the effect of crash on vehicle and the passengers by absorbing the shock effect generated in the high speed and low speed crashes that can occur in vehicle accidents.

Background of the Invention

Traffic accidents happen due to various reasons between the automobiles which are indispensable means of transport in our day. These accidents can between two cars, as well as they can be with single vehicles or between a vehicle and a pedestrian. These accidents are inevitable even though precautions are taken. Several new safety precautions are developed especially in field of vehicle design in order to prevent accidents and decrease life and property loss that can occur in accidents. These safety cautions can be divided into two as active and passive safety cautions. Active safety comprises notification systems that will increase control and braking abilities of the vehicle so that the driver avoids the accident, and control algorithms that will activate to detect the accident possibility and prevent the vehicle from this possibility. Passive safety is material change caution taken on the vehicle and structural improvements in order to minimize the negative effects of the accident as much as possible in case of an accident.

In case the vehicles crash, the deformation in front or back of the vehicle moving towards the passenger compartment can cause unwanted situations in terms of safety. Inertial effects are decreased by absorbing kinetic energy of the vehicle in a balanced and continuous way in this kind of accidents, and thus the less harm comes on the people inside the vehicle. Shock absorbers are used behind the bumper so that less harm comes on the passenger cabin in case the vehicles crash. The shock absorbers located after the bumper taking the first impact during crash absorbs a certain part of the energy.

United States Patent Document no US8469417B2, an application known in the state of the art, discloses a vehicle bumper comprising polymeric crash boxes and a traverse. The crash boxes are connected to the vehicle chassis with connection members, and they are deformable.

The Problems Solved with the Invention

The objective of the present invention is to provide a bumper assembly which prevents unwanted situations in terms of safety by preventing the deformation of the vehicle from moving towards the passenger compartment in case the vehicles crash. Another objective of the present invention is to provide a relieved bumper assembly by using new hybrid shock absorbers.

Detailed Description of the Invention

A bumper assembly realized to fulfill the objective of the present invention is illustrated in the accompanying figure, in which:

Figure 1 is the perspective view of a bumper assembly.

The components shown in the figures are each given reference numbers as follows:

1. Bumper assembly

2. Traverse

3. First shock absorber

4. Second shock absorber

5. Third shock absorber 6. Bracket

7. Cover

A bumper assembly (1), which enables to decrease the effect of crash on the life cabin by absorbing the shock effect created by the vehicle accidents, essentially comprises

at least one traverse (2) which is manufactured from metal sheet and extends along the width of the vehicle,

at least two first shock absorbers (3) which are provided at both ends of the traverse (2) between the traverse and the vehicle chassis, enable to absorb crash effects transferred from the traverse (2), and which are manufactured from polymeric material,

at least two second shock absorbers (4) which are provided at both ends of the traverse (2) on the side where the traverse is not connected to the vehicle chassis, enable to absorb crash effects transferred from the traverse (2), and which are manufactured from polymeric material,

at least one third shock absorber (5) which is provided in the middle of the traverse (2) on the side where the traverse is not connected to the vehicle chassis, enables to absorb crash effects transferred from the traverse (2), and which is manufactured from polymeric material.

There is at least one bracket (6) between each first shock absorber (3) and the chassis so that the traverse (2) and the first shock absorber (3) are fixed to the vehicle chassis. The bracket (6) is manufactured from metal sheet and it is bent such that it will wrap around the first shock absorber (3) and it is fixed to the traverse (3) from its bent ends (3).

There are first shock absorbers (3) at two ends of the traverse (2), and there is at least one hole on the area where the second shock absorber (4) corresponds to. On the first shock absorber (3), there are protrusions passing through the holes on the traverse (2). The protrusions present on the first shock absorbers (3) are connected with the second shock absorber (4) using hot member welding method.

The third shock absorber (5) is fixed on the traverse (2) with a dented structure.

There is a cover (7) which is fixed to the traverse (2) and which provides an aesthetic appearance by wrapping around the second shock absorbers (4) and the third shock absorber.