Patent US4402537A successfully refreshed from Google Patents.
US4402537A
Expired / Lapsed
US
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Bumper for motor vehicles
Assignee: Daimler Benz AG
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Filing: 1980-07-07
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Granted: 1983-09-06
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Expires: 2000-07-07
Abstract
Abstract A vehicle bumper which includes a shaped member supporting part that is open toward the front and is braced on fixed vehicle parts. The supporting part exchangeably accepts at least one energy-absorption member and includes at least one skirt that extends downwardly. The shaped member supporting part and at least a middle zone of the skirt are made in one piece and are formed of a filament-reinforced plastic. A filament content of the shaped supporting part is increased by a predetermined multiple with respect to a filament content of the skirt.
Inventors
- 👤 Joseph Gallitzendorfer
- 👤 Peter Pfeiffer
- 👤 Johann Tomforde
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:56
CPC Classifications
B; B60; B60R; B60R19/00; B60R19/02; B60R19/18; B60R19/04; B60R19/24; B60R19/26; B60R2019/1886
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
128 words
A vehicle bumper comprising a shaped member supporting means, the supporting means being open in a forward direction of the vehicle and being adapted to be supported on fixed parts of the vehicle for absorbing energy, at least one energy-absorption means exchangeably mounted in the supporting means, a skirt portion extending downwardly from the bumper, characterized in that the supporting means and at least a center area of the skirt are formed in one piece, the supporting means and the skirt are formed of a filament reinforced plastic material, and means are provided in an area of transition between the supporting means and the skirt for enabling a deflection of the skirt about an axis which is substantially horizontal and substantially transverse to the direction of vehicular travel.
Claim 2
Dependent Claim
128 words
A vehicle bumper comprising a shaped member supporting means, the supporting means being open in a forward direction of the vehicle and being adapted to be supported on fixed parts of the vehicle for absorbing energy, at least one energy-absorption means exchangeably mounted in the supporting means, a skirt portion extending downwardly from the bumper, characterized in that the supporting means and at least a center area of the skirt are formed in one piece, the supporting means and the skirt are formed of a filament reinforced plastic material, and means are provided in an area of transition between the supporting means and the skirt for enabling a deflection of the skirt about an axis which is substantially horizontal and substantially transverse to the direction of vehicular travel.
Claim 3
Dependent Claim
30 words
A vehicle bumper according to claim 1, characterized in that the means for enabling a deflection is a notch forming a weakening area between the supporting means and the skirt.
Claim 4
Dependent Claim
52 words
A vehicle bumper according to claim 1, characterized in that at least one lateral part adjoins each side of the center area of the skirt, and in that means are provided for connecting each lateral part to one of a body portion of the vehicle or a supporting part of the bumper.
Claim 5
Dependent Claim
23 words
A vehicle bumper according to claim 3, characterized in that said connecting means includes one of a clamp, a screw, or a clip.
Claim 6
Dependent Claim
20 words
A vehicle bumper according to claim 3, characterized in that the lateral parts are formed of a sheet metal material.
Claim 7
Dependent Claim
27 words
A vehicle bumper according to claim 3, characterized in that the lateral parts are formed of the same plastic material as the center area of the skirt.
Claim 8
Dependent Claim
33 words
A vehicle bumper according to claim 3, characterized in that the lateral parts are formed of a plastic material which is different from the plastic material of the center area of the skirt.
Claim 9
Dependent Claim
44 words
A vehicle bumper according to one of claims 1, 2, 3, 4, or 5, characterized in that the energy absorption means are formed of a foamed material, and in that an impact surface of the energy-absorption means is covered by a tough elastic cover.
Claim 10
Dependent Claim
58 words
A vehicle bumper according to claim 8, characterized in that the supporting means includes a profile section adapted to bear against a supporting part of the bumper with a predetermined pretensioning, and in that the elastic cover includes at least one flange portion extending transversely of the vehicle, said flange portion is adapted to engage said profile section.
Claim 11
Dependent Claim
39 words
A vehicle bumper according to one of claims 1, 2, 3, 4, or 5, characterized in that the energy-absorption means are formed as a regeneratable impact damper means for mounting a support of the bumper on the supporting means.
Claim 12
Dependent Claim
32 words
A vehicle bumper as set forth in claim 1, wherein a filament content of said plastic material of said skirt is a predetermined multiple of a filamemt content of said supporting means.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-09-05 | 1987-03-07 | 1987-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-09-05 | 1991-03-07 | 1991-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-09-05 | 1995-03-07 | 1995-09-06 | $7700.00 | Window Closed / Lapsed |