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US4474395A Expired / Lapsed US ⏱️ 0.0 years remaining

Bumper for a motor vehicle

Assignee: Daimler Benz AG
•
Filing: 1982-06-30
•
Granted: 1984-10-02
•
Expires: 2002-06-30
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Abstract

Abstract A bumper for a motor vehicle, with the bumper being equipped with an energy absorber provided along a rear surface thereof with at least one recess. The energy absorber is disposed forwardly of a girder subjected to bending, with the girder being attached to a vehicle. The recesses are arranged in such a manner that an impact force is transmitted to the body of the motor vehicle with as little moment as possible so as to prevent a tilting of the bumper and associated motor vehicle parts such as a fender of the vehicle. With a bumper girder subjected to bending being mounted forwardly of the energy absorber, at least portions of the recesses diagonally face the area of incidence of the impact force. If the impact is directly incident on the energy absorber, the recesses lie in an extension of a direction of the point of application of the impact forces.

Inventors

  • 👤 Bernd Harloff
  • 👤 Roman Schoppel
  • 👤 Ulrich Bruhnke
  • 👤 Engelbert Kinds

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 08:29
CPC Classifications
B; B60; B60R; B60R19/00; B60R19/02; B60R19/18; B60R2019/1886

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 108 words
A bumper for a motor vehicle, the bumper being adapted to be connected to a girder means attached to the motor vehicle and including a foam energy absorber means mounted on the girder means, comprising at least one recess means on a rear side of the foam energy absorber means facing the girder means, the at least one recess means disposed at a position outside of an area of a longitudinally extending horizontally disposed center plane of the bumper, the recess means lying in an extension of a direction of an impact force acting on the bumper from an area outside of the center plane of the bumper.
Claim 2
Dependent Claim 108 words
A bumper for a motor vehicle, the bumper being adapted to be connected to a girder means attached to the motor vehicle and including a foam energy absorber means mounted on the girder means, comprising at least one recess means on a rear side of the foam energy absorber means facing the girder means, the at least one recess means disposed at a position outside of an area of a longitudinally extending horizontally disposed center plane of the bumper, the recess means lying in an extension of a direction of an impact force acting on the bumper from an area outside of the center plane of the bumper.
Claim 3
Dependent Claim 43 words
A bumper according to claim 1, wherein a bumper girder means is disposed forwardly of the foam energy absorber means, and at least portions of the recess means extend diagonally with respect to an impact area of the impact force on the bumper.
Claim 4
Dependent Claim 56 words
A bumper according to claim 2, wherein the bumper girder means is of a bipartite construction and is adapted to be subjected to bending stresses, a profiled cover means is mounted on an upper surface of the bumper girder means, and an elastic skirt means is mounted on the front surface of the bumper girder means.
Claim 5
Dependent Claim 60 words
A bumper according to one of claims 1, 2 or 3, wherein the at least one recess means is disposed in a corner of the energy absorber means between an underside and a rear side of the energy absorber means, whereby tipping of the bumper is prevented when an impact force is applied to an area above the center plane.

References Cited (Backward Citations)

US4027909A Cited
US4073528A Cited
US4072334A Cited
US4328986A Cited
DE3021016A1 Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1987-10-02 1988-04-02 1988-10-02 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1991-10-02 1992-04-02 1992-10-02 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1995-10-02 1996-04-02 1996-10-02 $7700.00 Window Closed / Lapsed

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