Impact damping device
View Patent ↗Impact damping arrangement, in particular for a motor vehicle, comprising a cross member and at least one impact damper, an impact damper being positioned between the cross member and a vehicle frame for absorbing a force (F L ) in the direction of the longitudinal axis of the impact damper, wherein the connection of the impact damper to the vehicle frame comprises an absorbing arrangement having at least one deformation zone to bring about the attenuation of a force introduced transversely to the longitudinal axis of the impact damper by means of a material deformation in the deformation zone. An impact damping arrangement is thus provided which absorbs an impact in the longitudinal direction of the motor vehicle as well as an impact with a force effect extending transversely to the longitudinal axis of the motor vehicle.
1. An impact damping arrangement for a motor vehicle, the damping arrangement comprising:
a cross member;
at least one impact damper, the at least one impact damper being positioned between the cross member and a vehicle frame for absorbing a force (FL) in the direction of the longitudinal axis of the impact damper; and
an absorbing arrangement connecting the at least one impact damper to the vehicle frame, the absorbing arrangement having at least one deformation zone to bring about the attenuation of a force introduced transversely to the longitudinal axis of the impact damper by means of a material deformation in the deformation zone.
2. The impact damping arrangement according to claim 1 , wherein the absorbing arrangement is configured with a cup-shaped arched member for receiving the at least one impact damper, the absorbing arrangement being positioned transversely to the longitudinal axis of the impact damper and being connected on the outside to the vehicle frame.
3. The impact damping arrangement according to claim 2 , wherein the cup-shaped arched member is formed in a step like manner out of the absorbing arrangement, so that a deformation space is produced below the arched member.
4. The impact damping arrangement according to claim 1 , wherein the absorbing arrangement has an absorbing plate and a base plate connected to the absorbing plate.
5. The impact damping arrangement according to claim 4 , wherein the base plate has a hole positioned centrally in the longitudinal axis.
6. The impact damping arrangement according to claim 1 , wherein the at least one impact damper has an inner tube element connected to the cross member and an outer tube element connected to the absorbing arrangement, the inner tube element extending into the outer tube element, and a relative movement of the inner tube element and outer tube element with respect to one another causing a damping effect in the direction of the longitudinal axis of the impact damper.
7. The impact damping arrangement according to claim 1 , wherein the impact damping arrangement is positioned for an impact damping on a front of the motor vehicle.
8. The impact damping arrangement according to claim 1 , wherein the at least one impact damper and the absorbing arrangement are provided at least once on an outside on the cross member between the cross member and the vehicle frame.
9. The impact damping arrangement according to claim 1 , wherein a second impact dampers is provided in duplicate with the at least one impact damper and set with a second absorbing arrangement, and positioned transversely to the longitudinal axis of the at least one impact damper, with an angle between the cross member and the vehicle frame, so that the longitudinal axis of the at least one impact dampers and a second longitudinal axis of the second impact damper intersect on the vehicle side.
10. The impact damping arrangement according to claim 6 , further comprising an absorbing plate having cut outs for a controlled weakening of a structure in a region of the deformation zone to adjust the deformation behavior of the absorbing arrangement by forces introduced transversely to the longitudinal axis of the inner tube element and outer tube element.
11. The impact damping arrangement according to claim 6 , further comprising an absorbing plate of the absorbing arrangement that has a material thickness which adjusts a load level to be supported of the forces introduced transversely to the longitudinal axis of the inner tube element and outer tube element so that the deformation behavior in the deformation zone can be influenced.
12. An impact damping arrangement for a motor vehicle having a frame, the impact damping arrangement comprising:
a cross member positioned proximate the frame;
an impact damper disposed between the cross member and the frame, the impact damper being attached to the cross member and being configured to absorb a force in a direction of a longitudinal axis of the impact damper;
an absorbing arrangement comprising a cup-shaped arched member oriented transversely to the impact damper and attached to the impact damper and the frame, the absorbing arrangement having a deformation zone configured to deform when acted upon by a second force introduced transversely to the longitudinal axis of the impact damper.
13. The impact damping arrangement of claim 12 , wherein the cup-shaped arched member is formed in a step like manner out of the absorbing arrangement, so that a deformation space is produced below the cup-shaped arched member.
14. The impact damping arrangement of claim 12 , wherein the absorbing arrangement has an absorbing plate and a base plate connected to the absorbing plate.
15. The impact damping arrangement of claim 14 , wherein the absorbing plate defines a cut out for a controlled weakening of the absorbing plate proximate the deformation zone.
16. The impact damping arrangement of claim 14 , wherein the base plate has a hole positioned centrally and generally aligned with the longitudinal axis of the impact damper.
17. The impact damping arrangement of claim 12 , wherein the impact damper has an inner tube element connected to the cross member and an outer tube element connected to the absorbing arrangement, the inner tube element extending into the outer tube element, and a relative movement of the inner tube element and the outer tube element with respect to one another causing a damping effect in a direction of the longitudinal axis of the impact damper.
18. The impact damping arrangement of claim 12 , wherein the impact damping arrangement is positioned for an impact damping on a front of the motor vehicle.
19. The impact damping arrangement of claim 12 , wherein the deformation zone is oriented at an angle other than about 90 degrees with respect to a longitudinal end of the cup-shaped arched member.
20. An impact damping arrangement for a motor vehicle having a frame, the impact damping arrangement comprising:
a cross member positioned proximate the frame;
a plurality of spaced apart impact dampers disposed between the cross member and the frame, each impact damper being attached to the cross member and each impact damper being configured to absorb a force in the direction of a longitudinal axis of the impact damper; and
a plurality of absorbing arrangements, each absorbing arrangement comprising a cup-shaped arched member attached to one of the impact dampers and to the frame, each absorbing arrangement having a deformation zone configured to deform when acted upon by a force introduced transversely to the longitudinal axis of the one of the impact dampers.